aclocal.m4

   1 dnl***************************************************************************
   2 dnl Copyright 2018-2022,2023 Thomas E. Dickey                                *
   3 dnl Copyright 1998-2017,2018 Free Software Foundation, Inc.                  *
   4 dnl                                                                          *
   5 dnl Permission is hereby granted, free of charge, to any person obtaining a  *
   6 dnl copy of this software and associated documentation files (the            *
   7 dnl "Software"), to deal in the Software without restriction, including      *
   8 dnl without limitation the rights to use, copy, modify, merge, publish,      *
   9 dnl distribute, distribute with modifications, sublicense, and/or sell       *
  10 dnl copies of the Software, and to permit persons to whom the Software is    *
  11 dnl furnished to do so, subject to the following conditions:                 *
  12 dnl                                                                          *
  13 dnl The above copyright notice and this permission notice shall be included  *
  14 dnl in all copies or substantial portions of the Software.                   *
  15 dnl                                                                          *
  16 dnl THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *
  17 dnl OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *
  18 dnl MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   *
  19 dnl IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   *
  20 dnl DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    *
  21 dnl OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    *
  22 dnl THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               *
  23 dnl                                                                          *
  24 dnl Except as contained in this notice, the name(s) of the above copyright   *
  25 dnl holders shall not be used in advertising or otherwise to promote the     *
  26 dnl sale, use or other dealings in this Software without prior written       *
  27 dnl authorization.                                                           *
  28 dnl***************************************************************************
  29 dnl
  30 dnl Author: Thomas E. Dickey 1995-on
  31 dnl
  32 dnl $Id: aclocal.m4,v 1.1046 2023/05/13 21:42:47 tom Exp $
  33 dnl Macros used in NCURSES auto-configuration script.
  34 dnl
  35 dnl These macros are maintained separately from NCURSES.  The copyright on
  36 dnl this file applies to the aggregation of macros and does not affect use of
  37 dnl these macros in other applications.
  38 dnl
  39 dnl See these pages for additional information:
  40 dnl             https://invisible-island.net/autoconf/
  41 dnl             https://invisible-island.net/autoconf/my-autoconf.html
  42 dnl
  43 dnl ---------------------------------------------------------------------------
  44 dnl ---------------------------------------------------------------------------
  45 dnl AM_LANGINFO_CODESET version: 7 updated: 2023/01/11 04:05:23
  46 dnl -------------------
  47 dnl Inserted as requested by gettext 0.10.40
  48 dnl File from /usr/share/aclocal
  49 dnl codeset.m4
  50 dnl ====================
  51 dnl serial AM1
  52 dnl
  53 dnl From Bruno Haible.
  54 AC_DEFUN([AM_LANGINFO_CODESET],
  55 [
  56 AC_CACHE_CHECK([for nl_langinfo and CODESET], am_cv_langinfo_codeset,
  57         [AC_TRY_LINK([
  58 $ac_includes_default
  59 #include <langinfo.h>],
  60         [char* cs = nl_langinfo(CODESET); (void)cs],
  61         am_cv_langinfo_codeset=yes,
  62         am_cv_langinfo_codeset=no)
  63         ])
  64         if test "$am_cv_langinfo_codeset" = yes; then
  65                 AC_DEFINE(HAVE_LANGINFO_CODESET, 1,
  66                 [Define if you have <langinfo.h> and nl_langinfo(CODESET).])
  67         fi
  68 ])dnl
  69 dnl ---------------------------------------------------------------------------
  70 dnl CF_ABI_DEFAULTS version: 4 updated: 2023/01/07 16:32:06
  71 dnl ---------------
  72 dnl Provide configure-script defaults for different ncurses ABIs.
  73 AC_DEFUN([CF_ABI_DEFAULTS],[
  74 AC_REQUIRE([CF_NCURSES_WITH_ABI_VERSION])
  75
  76 # ABI 5 defaults:
  77 cf_dft_ccharw_max=5
  78 cf_dft_chtype=auto
  79 cf_dft_ext_colors=no
  80 cf_dft_ext_const=no
  81 cf_dft_ext_mouse=no
  82 cf_dft_ext_putwin=no
  83 cf_dft_ext_spfuncs=no
  84 cf_dft_filter_syms=no
  85 cf_dft_interop=no
  86 cf_dft_mmask_t=auto
  87 cf_dft_opaque_curses=no
  88 cf_dft_ordinate_type=short
  89 cf_dft_signed_char=no
  90 cf_dft_tparm_arg=long
  91 cf_dft_with_lp64=no
  92
  93 # ABI 6 defaults:
  94 case x$cf_cv_abi_default in
  95 (x[[6789]])
  96         cf_dft_chtype=uint32_t
  97         cf_dft_ext_colors=yes
  98         cf_dft_ext_const=yes
  99         cf_dft_ext_mouse=yes
 100         cf_dft_ext_putwin=yes
 101         cf_dft_ext_spfuncs=yes
 102         cf_dft_filter_syms=yes
 103         cf_dft_interop=yes
 104         cf_dft_mmask_t=uint32_t
 105         cf_dft_tparm_arg=intptr_t
 106         cf_dft_with_lp64=yes
 107         ;;
 108 esac
 109
 110 # ABI 7 defaults:
 111 case x$cf_cv_abi_default in
 112 (x[[789]])
 113         cf_dft_ccharw_max=6
 114         cf_dft_mmask_t=uint64_t
 115         cf_dft_opaque_curses=yes
 116         cf_dft_ordinate_type=int
 117         cf_dft_signed_char=yes
 118         # also: remove the wgetch-events feature in ABI 7
 119         ;;
 120 esac
 121 ])dnl
 122 dnl ---------------------------------------------------------------------------
 123 dnl CF_ACVERSION_CHECK version: 5 updated: 2014/06/04 19:11:49
 124 dnl ------------------
 125 dnl Conditionally generate script according to whether we're using a given autoconf.
 126 dnl
 127 dnl $1 = version to compare against
 128 dnl $2 = code to use if AC_ACVERSION is at least as high as $1.
 129 dnl $3 = code to use if AC_ACVERSION is older than $1.
 130 define([CF_ACVERSION_CHECK],
 131 [
 132 ifdef([AC_ACVERSION], ,[ifdef([AC_AUTOCONF_VERSION],[m4_copy([AC_AUTOCONF_VERSION],[AC_ACVERSION])],[m4_copy([m4_PACKAGE_VERSION],[AC_ACVERSION])])])dnl
 133 ifdef([m4_version_compare],
 134 [m4_if(m4_version_compare(m4_defn([AC_ACVERSION]), [$1]), -1, [$3], [$2])],
 135 [CF_ACVERSION_COMPARE(
 136 AC_PREREQ_CANON(AC_PREREQ_SPLIT([$1])),
 137 AC_PREREQ_CANON(AC_PREREQ_SPLIT(AC_ACVERSION)), AC_ACVERSION, [$2], [$3])])])dnl
 138 dnl ---------------------------------------------------------------------------
 139 dnl CF_ACVERSION_COMPARE version: 3 updated: 2012/10/03 18:39:53
 140 dnl --------------------
 141 dnl CF_ACVERSION_COMPARE(MAJOR1, MINOR1, TERNARY1,
 142 dnl                      MAJOR2, MINOR2, TERNARY2,
 143 dnl                      PRINTABLE2, not FOUND, FOUND)
 144 define([CF_ACVERSION_COMPARE],
 145 [ifelse(builtin([eval], [$2 < $5]), 1,
 146 [ifelse([$8], , ,[$8])],
 147 [ifelse([$9], , ,[$9])])])dnl
 148 dnl ---------------------------------------------------------------------------
 149 dnl CF_ADA_INCLUDE_DIRS version: 8 updated: 2013/10/14 04:24:07
 150 dnl -------------------
 151 dnl Construct the list of include-options for the C programs in the Ada95
 152 dnl binding.
 153 AC_DEFUN([CF_ADA_INCLUDE_DIRS],
 154 [
 155 ACPPFLAGS="-I. -I../include -I../../include $ACPPFLAGS"
 156 if test "$srcdir" != "."; then
 157         ACPPFLAGS="-I\${srcdir}/../../include $ACPPFLAGS"
 158 fi
 159 if test "$GCC" != yes; then
 160         ACPPFLAGS="$ACPPFLAGS -I\${includedir}"
 161 elif test "$includedir" != "/usr/include"; then
 162         if test "$includedir" = '${prefix}/include' ; then
 163                 if test x$prefix != x/usr ; then
 164                         ACPPFLAGS="$ACPPFLAGS -I\${includedir}"
 165                 fi
 166         else
 167                 ACPPFLAGS="$ACPPFLAGS -I\${includedir}"
 168         fi
 169 fi
 170 AC_SUBST(ACPPFLAGS)
 171 ])dnl
 172 dnl ---------------------------------------------------------------------------
 173 dnl CF_ADD_ADAFLAGS version: 1 updated: 2010/06/19 15:22:18
 174 dnl ---------------
 175 dnl Add to $ADAFLAGS, which is substituted into makefile and scripts.
 176 AC_DEFUN([CF_ADD_ADAFLAGS],[
 177         ADAFLAGS="$ADAFLAGS $1"
 178         AC_SUBST(ADAFLAGS)
 179 ])dnl
 180 dnl ---------------------------------------------------------------------------
 181 dnl CF_ADD_CFLAGS version: 15 updated: 2020/12/31 10:54:15
 182 dnl -------------
 183 dnl Copy non-preprocessor flags to $CFLAGS, preprocessor flags to $CPPFLAGS
 184 dnl $1 = flags to add
 185 dnl $2 = if given makes this macro verbose.
 186 dnl
 187 dnl Put any preprocessor definitions that use quoted strings in $EXTRA_CPPFLAGS,
 188 dnl to simplify use of $CPPFLAGS in compiler checks, etc., that are easily
 189 dnl confused by the quotes (which require backslashes to keep them usable).
 190 AC_DEFUN([CF_ADD_CFLAGS],
 191 [
 192 cf_fix_cppflags=no
 193 cf_new_cflags=
 194 cf_new_cppflags=
 195 cf_new_extra_cppflags=
 196
 197 for cf_add_cflags in $1
 198 do
 199 case "$cf_fix_cppflags" in
 200 (no)
 201         case "$cf_add_cflags" in
 202         (-undef|-nostdinc*|-I*|-D*|-U*|-E|-P|-C)
 203                 case "$cf_add_cflags" in
 204                 (-D*)
 205                         cf_tst_cflags=`echo "${cf_add_cflags}" |sed -e 's/^-D[[^=]]*='\''\"[[^"]]*//'`
 206
 207                         test "x${cf_add_cflags}" != "x${cf_tst_cflags}" \
 208                                 && test -z "${cf_tst_cflags}" \
 209                                 && cf_fix_cppflags=yes
 210
 211                         if test "$cf_fix_cppflags" = yes ; then
 212                                 CF_APPEND_TEXT(cf_new_extra_cppflags,$cf_add_cflags)
 213                                 continue
 214                         elif test "${cf_tst_cflags}" = "\"'" ; then
 215                                 CF_APPEND_TEXT(cf_new_extra_cppflags,$cf_add_cflags)
 216                                 continue
 217                         fi
 218                         ;;
 219                 esac
 220                 case "$CPPFLAGS" in
 221                 (*$cf_add_cflags)
 222                         ;;
 223                 (*)
 224                         case "$cf_add_cflags" in
 225                         (-D*)
 226                                 cf_tst_cppflags=`echo "x$cf_add_cflags" | sed -e 's/^...//' -e 's/=.*//'`
 227                                 CF_REMOVE_DEFINE(CPPFLAGS,$CPPFLAGS,$cf_tst_cppflags)
 228                                 ;;
 229                         esac
 230                         CF_APPEND_TEXT(cf_new_cppflags,$cf_add_cflags)
 231                         ;;
 232                 esac
 233                 ;;
 234         (*)
 235                 CF_APPEND_TEXT(cf_new_cflags,$cf_add_cflags)
 236                 ;;
 237         esac
 238         ;;
 239 (yes)
 240         CF_APPEND_TEXT(cf_new_extra_cppflags,$cf_add_cflags)
 241
 242         cf_tst_cflags=`echo "${cf_add_cflags}" |sed -e 's/^[[^"]]*"'\''//'`
 243
 244         test "x${cf_add_cflags}" != "x${cf_tst_cflags}" \
 245                 && test -z "${cf_tst_cflags}" \
 246                 && cf_fix_cppflags=no
 247         ;;
 248 esac
 249 done
 250
 251 if test -n "$cf_new_cflags" ; then
 252         ifelse([$2],,,[CF_VERBOSE(add to \$CFLAGS $cf_new_cflags)])
 253         CF_APPEND_TEXT(CFLAGS,$cf_new_cflags)
 254 fi
 255
 256 if test -n "$cf_new_cppflags" ; then
 257         ifelse([$2],,,[CF_VERBOSE(add to \$CPPFLAGS $cf_new_cppflags)])
 258         CF_APPEND_TEXT(CPPFLAGS,$cf_new_cppflags)
 259 fi
 260
 261 if test -n "$cf_new_extra_cppflags" ; then
 262         ifelse([$2],,,[CF_VERBOSE(add to \$EXTRA_CPPFLAGS $cf_new_extra_cppflags)])
 263         CF_APPEND_TEXT(EXTRA_CPPFLAGS,$cf_new_extra_cppflags)
 264 fi
 265
 266 AC_SUBST(EXTRA_CPPFLAGS)
 267
 268 ])dnl
 269 dnl ---------------------------------------------------------------------------
 270 dnl CF_ADD_CXXFLAGS version: 1 updated: 2020/04/04 16:16:13
 271 dnl ---------------
 272 dnl Copy non-preprocessor flags to $CXXFLAGS, preprocessor flags to $CPPFLAGS
 273 dnl The second parameter if given makes this macro verbose.
 274 dnl
 275 dnl Put any preprocessor definitions that use quoted strings in $EXTRA_CPPFLAGS,
 276 dnl to simplify use of $CPPFLAGS in compiler checks, etc., that are easily
 277 dnl confused by the quotes (which require backslashes to keep them usable).
 278 AC_DEFUN([CF_ADD_CXXFLAGS],
 279 [
 280 cf_save_CXXFLAGS="$CFLAGS"
 281 CFLAGS="$CXXFLAGS"
 282 CF_ADD_CFLAGS($1 ifelse($2,,,[,$2]))
 283 CXXFLAGS="$CFLAGS"
 284 CFLAGS="$cf_save_CXXFLAGS"
 285 ])dnl
 286 dnl ---------------------------------------------------------------------------
 287 dnl CF_ADD_INCDIR version: 17 updated: 2021/09/04 06:35:04
 288 dnl -------------
 289 dnl Add an include-directory to $CPPFLAGS.  Don't add /usr/include, since it is
 290 dnl redundant.  We don't normally need to add -I/usr/local/include for gcc,
 291 dnl but old versions (and some misinstalled ones) need that.  To make things
 292 dnl worse, gcc 3.x may give error messages if -I/usr/local/include is added to
 293 dnl the include-path).
 294 AC_DEFUN([CF_ADD_INCDIR],
 295 [
 296 if test -n "$1" ; then
 297   for cf_add_incdir in $1
 298   do
 299         while test "$cf_add_incdir" != /usr/include
 300         do
 301           if test -d "$cf_add_incdir"
 302           then
 303                 cf_have_incdir=no
 304                 if test -n "$CFLAGS$CPPFLAGS" ; then
 305                   # a loop is needed to ensure we can add subdirs of existing dirs
 306                   for cf_test_incdir in $CFLAGS $CPPFLAGS ; do
 307                         if test ".$cf_test_incdir" = ".-I$cf_add_incdir" ; then
 308                           cf_have_incdir=yes; break
 309                         fi
 310                   done
 311                 fi
 312
 313                 if test "$cf_have_incdir" = no ; then
 314                   if test "$cf_add_incdir" = /usr/local/include ; then
 315                         if test "$GCC" = yes
 316                         then
 317                           cf_save_CPPFLAGS=$CPPFLAGS
 318                           CF_APPEND_TEXT(CPPFLAGS,-I$cf_add_incdir)
 319                           AC_TRY_COMPILE([#include <stdio.h>],
 320                                   [printf("Hello")],
 321                                   [],
 322                                   [cf_have_incdir=yes])
 323                           CPPFLAGS=$cf_save_CPPFLAGS
 324                         fi
 325                   fi
 326                 fi
 327
 328                 if test "$cf_have_incdir" = no ; then
 329                   CF_VERBOSE(adding $cf_add_incdir to include-path)
 330                   ifelse([$2],,CPPFLAGS,[$2])="$ifelse([$2],,CPPFLAGS,[$2]) -I$cf_add_incdir"
 331
 332                   cf_top_incdir=`echo "$cf_add_incdir" | sed -e 's%/include/.*$%/include%'`
 333                   test "$cf_top_incdir" = "$cf_add_incdir" && break
 334                   cf_add_incdir="$cf_top_incdir"
 335                 else
 336                   break
 337                 fi
 338           else
 339                 break
 340           fi
 341         done
 342   done
 343 fi
 344 ])dnl
 345 dnl ---------------------------------------------------------------------------
 346 dnl CF_ADD_LIB version: 2 updated: 2010/06/02 05:03:05
 347 dnl ----------
 348 dnl Add a library, used to enforce consistency.
 349 dnl
 350 dnl $1 = library to add, without the "-l"
 351 dnl $2 = variable to update (default $LIBS)
 352 AC_DEFUN([CF_ADD_LIB],[CF_ADD_LIBS(-l$1,ifelse($2,,LIBS,[$2]))])dnl
 353 dnl ---------------------------------------------------------------------------
 354 dnl CF_ADD_LIBDIR version: 11 updated: 2020/12/31 20:19:42
 355 dnl -------------
 356 dnl     Adds to the library-path
 357 dnl
 358 dnl     Some machines have trouble with multiple -L options.
 359 dnl
 360 dnl $1 is the (list of) directory(s) to add
 361 dnl $2 is the optional name of the variable to update (default LDFLAGS)
 362 dnl
 363 AC_DEFUN([CF_ADD_LIBDIR],
 364 [
 365 if test -n "$1" ; then
 366         for cf_add_libdir in $1
 367         do
 368                 if test "$cf_add_libdir" = /usr/lib ; then
 369                         :
 370                 elif test -d "$cf_add_libdir"
 371                 then
 372                         cf_have_libdir=no
 373                         if test -n "$LDFLAGS$LIBS" ; then
 374                                 # a loop is needed to ensure we can add subdirs of existing dirs
 375                                 for cf_test_libdir in $LDFLAGS $LIBS ; do
 376                                         if test ".$cf_test_libdir" = ".-L$cf_add_libdir" ; then
 377                                                 cf_have_libdir=yes; break
 378                                         fi
 379                                 done
 380                         fi
 381                         if test "$cf_have_libdir" = no ; then
 382                                 CF_VERBOSE(adding $cf_add_libdir to library-path)
 383                                 ifelse([$2],,LDFLAGS,[$2])="-L$cf_add_libdir $ifelse([$2],,LDFLAGS,[$2])"
 384                         fi
 385                 fi
 386         done
 387 fi
 388 ])dnl
 389 dnl ---------------------------------------------------------------------------
 390 dnl CF_ADD_LIBS version: 3 updated: 2019/11/02 16:47:33
 391 dnl -----------
 392 dnl Add one or more libraries, used to enforce consistency.  Libraries are
 393 dnl prepended to an existing list, since their dependencies are assumed to
 394 dnl already exist in the list.
 395 dnl
 396 dnl $1 = libraries to add, with the "-l", etc.
 397 dnl $2 = variable to update (default $LIBS)
 398 AC_DEFUN([CF_ADD_LIBS],[
 399 cf_add_libs="[$]ifelse($2,,LIBS,[$2])"
 400 # reverse order
 401 cf_add_0lib=
 402 for cf_add_1lib in $1; do cf_add_0lib="$cf_add_1lib $cf_add_0lib"; done
 403 # filter duplicates
 404 for cf_add_1lib in $cf_add_0lib; do
 405         for cf_add_2lib in $cf_add_libs; do
 406                 if test "x$cf_add_1lib" = "x$cf_add_2lib"; then
 407                         cf_add_1lib=
 408                         break
 409                 fi
 410         done
 411         test -n "$cf_add_1lib" && cf_add_libs="$cf_add_1lib $cf_add_libs"
 412 done
 413 ifelse($2,,LIBS,[$2])="$cf_add_libs"
 414 ])dnl
 415 dnl ---------------------------------------------------------------------------
 416 dnl CF_ADD_SUBDIR_PATH version: 5 updated: 2020/12/31 20:19:42
 417 dnl ------------------
 418 dnl Append to a search-list for a nonstandard header/lib-file
 419 dnl     $1 = the variable to return as result
 420 dnl     $2 = the package name
 421 dnl     $3 = the subdirectory, e.g., bin, include or lib
 422 dnl $4 = the directory under which we will test for subdirectories
 423 dnl $5 = a directory that we do not want $4 to match
 424 AC_DEFUN([CF_ADD_SUBDIR_PATH],
 425 [
 426 test "x$4" != "x$5" && \
 427 test -d "$4" && \
 428 ifelse([$5],NONE,,[{ test -z "$5" || test "x$5" = xNONE || test "x$4" != "x$5"; } &&]) {
 429         test -n "$verbose" && echo "    ... testing for $3-directories under $4"
 430         test -d "$4/$3" &&          $1="[$]$1 $4/$3"
 431         test -d "$4/$3/$2" &&       $1="[$]$1 $4/$3/$2"
 432         test -d "$4/$3/$2/$3" &&    $1="[$]$1 $4/$3/$2/$3"
 433         test -d "$4/$2/$3" &&       $1="[$]$1 $4/$2/$3"
 434         test -d "$4/$2/$3/$2" &&    $1="[$]$1 $4/$2/$3/$2"
 435 }
 436 ])dnl
 437 dnl ---------------------------------------------------------------------------
 438 dnl CF_APPEND_CFLAGS version: 3 updated: 2021/09/05 17:25:40
 439 dnl ----------------
 440 dnl Use CF_ADD_CFLAGS after first checking for potential redefinitions.
 441 dnl $1 = flags to add
 442 dnl $2 = if given makes this macro verbose.
 443 define([CF_APPEND_CFLAGS],
 444 [
 445 for cf_add_cflags in $1
 446 do
 447         case "x$cf_add_cflags" in
 448         (x-[[DU]]*)
 449                 CF_REMOVE_CFLAGS($cf_add_cflags,CFLAGS,[$2])
 450                 CF_REMOVE_CFLAGS($cf_add_cflags,CPPFLAGS,[$2])
 451                 ;;
 452         esac
 453         CF_ADD_CFLAGS([$cf_add_cflags],[$2])
 454 done
 455 ])dnl
 456 dnl ---------------------------------------------------------------------------
 457 dnl CF_APPEND_TEXT version: 1 updated: 2017/02/25 18:58:55
 458 dnl --------------
 459 dnl use this macro for appending text without introducing an extra blank at
 460 dnl the beginning
 461 define([CF_APPEND_TEXT],
 462 [
 463         test -n "[$]$1" && $1="[$]$1 "
 464         $1="[$]{$1}$2"
 465 ])dnl
 466 dnl ---------------------------------------------------------------------------
 467 dnl CF_ARG_DISABLE version: 3 updated: 1999/03/30 17:24:31
 468 dnl --------------
 469 dnl Allow user to disable a normally-on option.
 470 AC_DEFUN([CF_ARG_DISABLE],
 471 [CF_ARG_OPTION($1,[$2],[$3],[$4],yes)])dnl
 472 dnl ---------------------------------------------------------------------------
 473 dnl CF_ARG_ENABLE version: 3 updated: 1999/03/30 17:24:31
 474 dnl -------------
 475 dnl Allow user to enable a normally-off option.
 476 AC_DEFUN([CF_ARG_ENABLE],
 477 [CF_ARG_OPTION($1,[$2],[$3],[$4],no)])dnl
 478 dnl ---------------------------------------------------------------------------
 479 dnl CF_ARG_OPTION version: 5 updated: 2015/05/10 19:52:14
 480 dnl -------------
 481 dnl Restricted form of AC_ARG_ENABLE that ensures user doesn't give bogus
 482 dnl values.
 483 dnl
 484 dnl Parameters:
 485 dnl $1 = option name
 486 dnl $2 = help-string
 487 dnl $3 = action to perform if option is not default
 488 dnl $4 = action if perform if option is default
 489 dnl $5 = default option value (either 'yes' or 'no')
 490 AC_DEFUN([CF_ARG_OPTION],
 491 [AC_ARG_ENABLE([$1],[$2],[test "$enableval" != ifelse([$5],no,yes,no) && enableval=ifelse([$5],no,no,yes)
 492         if test "$enableval" != "$5" ; then
 493 ifelse([$3],,[    :]dnl
 494 ,[    $3]) ifelse([$4],,,[
 495         else
 496                 $4])
 497         fi],[enableval=$5 ifelse([$4],,,[
 498         $4
 499 ])dnl
 500 ])])dnl
 501 dnl ---------------------------------------------------------------------------
 502 dnl CF_AR_FLAGS version: 9 updated: 2021/01/01 13:31:04
 503 dnl -----------
 504 dnl Check for suitable "ar" (archiver) options for updating an archive.
 505 dnl
 506 dnl In particular, handle some obsolete cases where the "-" might be omitted,
 507 dnl as well as a workaround for breakage of make's archive rules by the GNU
 508 dnl binutils "ar" program.
 509 AC_DEFUN([CF_AR_FLAGS],[
 510 AC_REQUIRE([CF_PROG_AR])
 511
 512 AC_CACHE_CHECK(for options to update archives, cf_cv_ar_flags,[
 513         case "$cf_cv_system_name" in
 514         (*-msvc*)
 515                 cf_cv_ar_flags=''
 516                 cat >mk_static_lib.sh <<-EOF
 517                 #!$SHELL
 518                 MSVC_BIN="[$]AR"
 519                 out="\[$]1"
 520                 shift
 521                 exec \[$]MSVC_BIN -out:"\[$]out" \[$]@
 522                 EOF
 523                 chmod +x mk_static_lib.sh
 524                 AR=`pwd`/mk_static_lib.sh
 525                 ;;
 526         (*)
 527                 cf_cv_ar_flags=unknown
 528                 for cf_ar_flags in -curvU -curv curv -crv crv -cqv cqv -rv rv
 529                 do
 530
 531                         # check if $ARFLAGS already contains this choice
 532                         if test "x$ARFLAGS" != "x" ; then
 533                                 cf_check_ar_flags=`echo "x$ARFLAGS" | sed -e "s/$cf_ar_flags\$//" -e "s/$cf_ar_flags / /"`
 534                                 if test "x$ARFLAGS" != "$cf_check_ar_flags" ; then
 535                                         cf_cv_ar_flags=
 536                                         break
 537                                 fi
 538                         fi
 539
 540                         rm -f "conftest.$ac_cv_objext"
 541                         rm -f conftest.a
 542
 543                         cat >"conftest.$ac_ext" <<EOF
 544 #line __oline__ "configure"
 545 int     testdata[[3]] = { 123, 456, 789 };
 546 EOF
 547                         if AC_TRY_EVAL(ac_compile) ; then
 548                                 echo "$AR $ARFLAGS $cf_ar_flags conftest.a conftest.$ac_cv_objext" >&AC_FD_CC
 549                                 $AR $ARFLAGS "$cf_ar_flags" conftest.a "conftest.$ac_cv_objext" 2>&AC_FD_CC 1>/dev/null
 550                                 if test -f conftest.a ; then
 551                                         cf_cv_ar_flags="$cf_ar_flags"
 552                                         break
 553                                 fi
 554                         else
 555                                 CF_VERBOSE(cannot compile test-program)
 556                                 break
 557                         fi
 558                 done
 559                 rm -f conftest.a "conftest.$ac_ext" "conftest.$ac_cv_objext"
 560                 ;;
 561         esac
 562 ])
 563
 564 if test -n "$ARFLAGS" ; then
 565         if test -n "$cf_cv_ar_flags" ; then
 566                 ARFLAGS="$ARFLAGS $cf_cv_ar_flags"
 567         fi
 568 else
 569         ARFLAGS=$cf_cv_ar_flags
 570 fi
 571
 572 AC_SUBST(ARFLAGS)
 573 ])
 574 dnl ---------------------------------------------------------------------------
 575 dnl CF_AWK_BIG_PRINTF version: 5 updated: 2015/04/17 21:13:04
 576 dnl -----------------
 577 dnl Check if awk can handle big strings using printf.  Some older versions of
 578 dnl awk choke on large strings passed via "%s".
 579 dnl
 580 dnl $1 = desired string size
 581 dnl $2 = variable to set with result
 582 AC_DEFUN([CF_AWK_BIG_PRINTF],
 583 [
 584         case x$AWK in
 585         (x)
 586                 eval $2=no
 587                 ;;
 588         (*)
 589                 if ( ${AWK} 'BEGIN { xx = "x"; while (length(xx) < $1) { xx = xx "x"; }; printf("%s\n", xx); }' 2>/dev/null \
 590                         | $AWK '{ printf "%d\n", length([$]0); }' 2>/dev/null | $AWK 'BEGIN { eqls=0; recs=0; } { recs++; if ([$]0 == 12000) eqls++; } END { if (recs != 1 || eqls != 1) exit 1; }' 2>/dev/null >/dev/null ) ; then
 591                         eval $2=yes
 592                 else
 593                         eval $2=no
 594                 fi
 595                 ;;
 596         esac
 597 ])dnl
 598 dnl ---------------------------------------------------------------------------
 599 dnl CF_BOOL_DECL version: 8 updated: 2004/01/30 15:51:18
 600 dnl ------------
 601 dnl Test if 'bool' is a builtin type in the configured C++ compiler.  Some
 602 dnl older compilers (e.g., gcc 2.5.8) don't support 'bool' directly; gcc
 603 dnl 2.6.3 does, in anticipation of the ANSI C++ standard.
 604 dnl
 605 dnl Treat the configuration-variable specially here, since we're directly
 606 dnl substituting its value (i.e., 1/0).
 607 dnl
 608 dnl $1 is the shell variable to store the result in, if not $cv_cv_builtin_bool
 609 AC_DEFUN([CF_BOOL_DECL],
 610 [
 611 AC_MSG_CHECKING(if we should include stdbool.h)
 612
 613 AC_CACHE_VAL(cf_cv_header_stdbool_h,[
 614         AC_TRY_COMPILE([],[bool foo = false],
 615                 [cf_cv_header_stdbool_h=0],
 616                 [AC_TRY_COMPILE([
 617 #ifndef __BEOS__
 618 #include <stdbool.h>
 619 #endif
 620 ],[bool foo = false],
 621                         [cf_cv_header_stdbool_h=1],
 622                         [cf_cv_header_stdbool_h=0])])])
 623
 624 if test "$cf_cv_header_stdbool_h" = 1
 625 then    AC_MSG_RESULT(yes)
 626 else    AC_MSG_RESULT(no)
 627 fi
 628
 629 AC_MSG_CHECKING([for builtin bool type])
 630
 631 AC_CACHE_VAL(ifelse($1,,cf_cv_builtin_bool,[$1]),[
 632         AC_TRY_COMPILE([
 633 #include <stdio.h>
 634 #include <sys/types.h>
 635 ],[bool x = false],
 636                 [ifelse($1,,cf_cv_builtin_bool,[$1])=1],
 637                 [ifelse($1,,cf_cv_builtin_bool,[$1])=0])
 638         ])
 639
 640 if test "$ifelse($1,,cf_cv_builtin_bool,[$1])" = 1
 641 then    AC_MSG_RESULT(yes)
 642 else    AC_MSG_RESULT(no)
 643 fi
 644 ])dnl
 645 dnl ---------------------------------------------------------------------------
 646 dnl CF_BOOL_SIZE version: 20 updated: 2023/02/18 17:41:25
 647 dnl ------------
 648 dnl Test for the size of 'bool' in the configured C++ compiler (e.g., a type).
 649 dnl Don't bother looking for bool.h, since it has been deprecated.
 650 dnl
 651 dnl If the current compiler is C rather than C++, we get the bool definition
 652 dnl from <stdbool.h>.
 653 AC_DEFUN([CF_BOOL_SIZE],
 654 [
 655 AC_CHECK_SIZEOF(bool,,[
 656 $ac_includes_default
 657
 658 #if defined(__cplusplus)
 659
 660 #ifdef HAVE_GXX_BUILTIN_H
 661 #include <g++/builtin.h>
 662 #elif HAVE_GPP_BUILTIN_H
 663 #include <gpp/builtin.h>
 664 #elif HAVE_BUILTIN_H
 665 #include <builtin.h>
 666 #endif
 667
 668 #else
 669
 670 #if $cf_cv_header_stdbool_h
 671 #include <stdbool.h>
 672 #endif
 673
 674 #endif
 675 ])
 676
 677 AC_CACHE_CHECK(for type of bool, cf_cv_type_of_bool,[
 678         rm -f cf_test.out
 679         AC_TRY_RUN([
 680 $ac_includes_default
 681
 682 #if defined(__cplusplus)
 683
 684 #ifdef HAVE_GXX_BUILTIN_H
 685 #include <g++/builtin.h>
 686 #elif HAVE_GPP_BUILTIN_H
 687 #include <gpp/builtin.h>
 688 #elif HAVE_BUILTIN_H
 689 #include <builtin.h>
 690 #endif
 691
 692 #else
 693
 694 #if $cf_cv_header_stdbool_h
 695 #include <stdbool.h>
 696 #endif
 697
 698 #endif
 699
 700 int main(void)
 701 {
 702         FILE *fp = fopen("cf_test.out", "w");
 703         if (fp != 0) {
 704                 bool x = true;
 705                 if ((bool)(-x) >= 0)
 706                         fputs("unsigned ", fp);
 707                 if (sizeof(x) == sizeof(int))       fputs("int",  fp);
 708                 else if (sizeof(x) == sizeof(char)) fputs("char", fp);
 709                 else if (sizeof(x) == sizeof(short))fputs("short",fp);
 710                 else if (sizeof(x) == sizeof(long)) fputs("long", fp);
 711                 fclose(fp);
 712         }
 713         ${cf_cv_main_return:-return}(0);
 714 }
 715                 ],
 716                 [cf_cv_type_of_bool=`cat cf_test.out`
 717                  if test -z "$cf_cv_type_of_bool"; then
 718                    cf_cv_type_of_bool=unknown
 719                  fi],
 720                 [cf_cv_type_of_bool=unknown],
 721                 [
 722                 case x$ac_cv_sizeof_bool in
 723                 (x1) cf_cv_type_of_bool="unsigned char";;
 724                 (x2) cf_cv_type_of_bool="unsigned short";;
 725                 (x4) cf_cv_type_of_bool="unsigned int";;
 726                 (x8) cf_cv_type_of_bool="unsigned long";;
 727                 (*)  cf_cv_type_of_bool=unknown;;
 728                 esac
 729                 ])
 730         rm -f cf_test.out
 731 ])
 732
 733 if test "$cf_cv_type_of_bool" = unknown ; then
 734         case .$NCURSES_BOOL in
 735         (.auto|.) NCURSES_BOOL=unsigned;;
 736         esac
 737         AC_MSG_WARN(Assuming $NCURSES_BOOL for type of bool)
 738         cf_cv_type_of_bool=$NCURSES_BOOL
 739 fi
 740 ])dnl
 741 dnl ---------------------------------------------------------------------------
 742 dnl CF_BUILD_CC version: 11 updated: 2022/12/04 15:40:08
 743 dnl -----------
 744 dnl If we're cross-compiling, allow the user to override the tools and their
 745 dnl options.  The configure script is oriented toward identifying the host
 746 dnl compiler, etc., but we need a build compiler to generate parts of the
 747 dnl source.
 748 dnl
 749 dnl $1 = default for $CPPFLAGS
 750 dnl $2 = default for $LIBS
 751 AC_DEFUN([CF_BUILD_CC],[
 752 CF_ACVERSION_CHECK(2.52,,
 753         [AC_REQUIRE([CF_PROG_EXT])])
 754 if test "$cross_compiling" = yes ; then
 755
 756         # defaults that we might want to override
 757         : ${BUILD_CFLAGS:=''}
 758         : ${BUILD_CPPFLAGS:='ifelse([$1],,,[$1])'}
 759         : ${BUILD_LDFLAGS:=''}
 760         : ${BUILD_LIBS:='ifelse([$2],,,[$2])'}
 761         : ${BUILD_EXEEXT:='$x'}
 762         : ${BUILD_OBJEXT:='o'}
 763
 764         AC_ARG_WITH(build-cc,
 765                 [  --with-build-cc=XXX     the build C compiler ($BUILD_CC)],
 766                 [BUILD_CC="$withval"],
 767                 [AC_CHECK_PROGS(BUILD_CC, [gcc clang c99 c89 cc cl],none)])
 768         AC_MSG_CHECKING(for native build C compiler)
 769         AC_MSG_RESULT($BUILD_CC)
 770
 771         AC_MSG_CHECKING(for native build C preprocessor)
 772         AC_ARG_WITH(build-cpp,
 773                 [  --with-build-cpp=XXX    the build C preprocessor ($BUILD_CPP)],
 774                 [BUILD_CPP="$withval"],
 775                 [BUILD_CPP='${BUILD_CC} -E'])
 776         AC_MSG_RESULT($BUILD_CPP)
 777
 778         AC_MSG_CHECKING(for native build C flags)
 779         AC_ARG_WITH(build-cflags,
 780                 [  --with-build-cflags=XXX the build C compiler-flags ($BUILD_CFLAGS)],
 781                 [BUILD_CFLAGS="$withval"])
 782         AC_MSG_RESULT($BUILD_CFLAGS)
 783
 784         AC_MSG_CHECKING(for native build C preprocessor-flags)
 785         AC_ARG_WITH(build-cppflags,
 786                 [  --with-build-cppflags=XXX the build C preprocessor-flags ($BUILD_CPPFLAGS)],
 787                 [BUILD_CPPFLAGS="$withval"])
 788         AC_MSG_RESULT($BUILD_CPPFLAGS)
 789
 790         AC_MSG_CHECKING(for native build linker-flags)
 791         AC_ARG_WITH(build-ldflags,
 792                 [  --with-build-ldflags=XXX the build linker-flags ($BUILD_LDFLAGS)],
 793                 [BUILD_LDFLAGS="$withval"])
 794         AC_MSG_RESULT($BUILD_LDFLAGS)
 795
 796         AC_MSG_CHECKING(for native build linker-libraries)
 797         AC_ARG_WITH(build-libs,
 798                 [  --with-build-libs=XXX   the build libraries (${BUILD_LIBS})],
 799                 [BUILD_LIBS="$withval"])
 800         AC_MSG_RESULT($BUILD_LIBS)
 801
 802         # this assumes we're on Unix.
 803         BUILD_EXEEXT=
 804         BUILD_OBJEXT=o
 805
 806         : ${BUILD_CC:='${CC}'}
 807
 808         AC_MSG_CHECKING(if the build-compiler "$BUILD_CC" works)
 809
 810         cf_save_crossed=$cross_compiling
 811         cf_save_ac_link=$ac_link
 812         cross_compiling=no
 813         cf_build_cppflags=$BUILD_CPPFLAGS
 814         test "$cf_build_cppflags" = "#" && cf_build_cppflags=
 815         ac_link='$BUILD_CC -o "conftest$ac_exeext" $BUILD_CFLAGS $cf_build_cppflags $BUILD_LDFLAGS "conftest.$ac_ext" $BUILD_LIBS >&AS_MESSAGE_LOG_FD'
 816
 817         AC_TRY_RUN([#include <stdio.h>
 818                 int main(int argc, char *argv[])
 819                 {
 820                         ${cf_cv_main_return:-return}(argc < 0 || argv == 0 || argv[0] == 0);
 821                 }
 822         ],
 823                 cf_ok_build_cc=yes,
 824                 cf_ok_build_cc=no,
 825                 cf_ok_build_cc=unknown)
 826
 827         cross_compiling=$cf_save_crossed
 828         ac_link=$cf_save_ac_link
 829
 830         AC_MSG_RESULT($cf_ok_build_cc)
 831
 832         if test "$cf_ok_build_cc" != yes
 833         then
 834                 AC_MSG_ERROR([Cross-build requires two compilers.
 835 Use --with-build-cc to specify the native compiler.])
 836         fi
 837
 838 else
 839         : ${BUILD_CC:='${CC}'}
 840         : ${BUILD_CPP:='${CPP}'}
 841         : ${BUILD_CFLAGS:='${CFLAGS}'}
 842         : ${BUILD_CPPFLAGS:='${CPPFLAGS}'}
 843         : ${BUILD_LDFLAGS:='${LDFLAGS}'}
 844         : ${BUILD_LIBS:='${LIBS}'}
 845         : ${BUILD_EXEEXT:='$x'}
 846         : ${BUILD_OBJEXT:='o'}
 847 fi
 848
 849 AC_SUBST(BUILD_CC)
 850 AC_SUBST(BUILD_CPP)
 851 AC_SUBST(BUILD_CFLAGS)
 852 AC_SUBST(BUILD_CPPFLAGS)
 853 AC_SUBST(BUILD_LDFLAGS)
 854 AC_SUBST(BUILD_LIBS)
 855 AC_SUBST(BUILD_EXEEXT)
 856 AC_SUBST(BUILD_OBJEXT)
 857 ])dnl
 858 dnl ---------------------------------------------------------------------------
 859 dnl CF_C11_NORETURN version: 4 updated: 2023/02/18 17:41:25
 860 dnl ---------------
 861 AC_DEFUN([CF_C11_NORETURN],
 862 [
 863 AC_MSG_CHECKING(if you want to use C11 _Noreturn feature)
 864 CF_ARG_ENABLE(stdnoreturn,
 865         [  --enable-stdnoreturn    enable C11 _Noreturn feature for diagnostics],
 866         [enable_stdnoreturn=yes],
 867         [enable_stdnoreturn=no])
 868 AC_MSG_RESULT($enable_stdnoreturn)
 869
 870 if test $enable_stdnoreturn = yes; then
 871 AC_CACHE_CHECK([for C11 _Noreturn feature], cf_cv_c11_noreturn,
 872         [AC_TRY_COMPILE([
 873 $ac_includes_default
 874 #include <stdnoreturn.h>
 875 static _Noreturn void giveup(void) { exit(0); }
 876         ],
 877         [if (feof(stdin)) giveup()],
 878         cf_cv_c11_noreturn=yes,
 879         cf_cv_c11_noreturn=no)
 880         ])
 881 else
 882         cf_cv_c11_noreturn=no,
 883 fi
 884
 885 if test "$cf_cv_c11_noreturn" = yes; then
 886         AC_DEFINE(HAVE_STDNORETURN_H, 1,[Define if <stdnoreturn.h> header is available and working])
 887         AC_DEFINE_UNQUOTED(STDC_NORETURN,_Noreturn,[Define if C11 _Noreturn keyword is supported])
 888         HAVE_STDNORETURN_H=1
 889 else
 890         HAVE_STDNORETURN_H=0
 891 fi
 892
 893 AC_SUBST(HAVE_STDNORETURN_H)
 894 AC_SUBST(STDC_NORETURN)
 895 ])dnl
 896 dnl ---------------------------------------------------------------------------
 897 dnl CF_CC_ENV_FLAGS version: 11 updated: 2023/02/20 11:15:46
 898 dnl ---------------
 899 dnl Check for user's environment-breakage by stuffing CFLAGS/CPPFLAGS content
 900 dnl into CC.  This will not help with broken scripts that wrap the compiler
 901 dnl with options, but eliminates a more common category of user confusion.
 902 dnl
 903 dnl In particular, it addresses the problem of being able to run the C
 904 dnl preprocessor in a consistent manner.
 905 dnl
 906 dnl Caveat: this also disallows blanks in the pathname for the compiler, but
 907 dnl the nuisance of having inconsistent settings for compiler and preprocessor
 908 dnl outweighs that limitation.
 909 AC_DEFUN([CF_CC_ENV_FLAGS],
 910 [
 911 # This should have been defined by AC_PROG_CC
 912 : "${CC:=cc}"
 913
 914 AC_MSG_CHECKING(\$CFLAGS variable)
 915 case "x$CFLAGS" in
 916 (*-[[IUD]]*)
 917         AC_MSG_RESULT(broken)
 918         AC_MSG_WARN(your environment uses the CFLAGS variable to hold CPPFLAGS options)
 919         cf_flags="$CFLAGS"
 920         CFLAGS=
 921         for cf_arg in $cf_flags
 922         do
 923                 CF_ADD_CFLAGS($cf_arg)
 924         done
 925         ;;
 926 (*)
 927         AC_MSG_RESULT(ok)
 928         ;;
 929 esac
 930
 931 AC_MSG_CHECKING(\$CC variable)
 932 case "$CC" in
 933 (*[[\ \ ]]-*)
 934         AC_MSG_RESULT(broken)
 935         AC_MSG_WARN(your environment uses the CC variable to hold CFLAGS/CPPFLAGS options)
 936         # humor him...
 937         cf_prog=`echo "$CC" | sed -e 's/        / /g' -e 's/[[ ]]* / /g' -e 's/[[ ]]*[[ ]]-[[^ ]].*//'`
 938         cf_flags=`echo "$CC" | sed -e "s%^$cf_prog%%"`
 939         CC="$cf_prog"
 940         for cf_arg in $cf_flags
 941         do
 942                 case "x$cf_arg" in
 943                 (x-[[IUDfgOW]]*)
 944                         CF_ADD_CFLAGS($cf_arg)
 945                         ;;
 946                 (*)
 947                         CC="$CC $cf_arg"
 948                         ;;
 949                 esac
 950         done
 951         CF_VERBOSE(resulting CC: '$CC')
 952         CF_VERBOSE(resulting CFLAGS: '$CFLAGS')
 953         CF_VERBOSE(resulting CPPFLAGS: '$CPPFLAGS')
 954         ;;
 955 (*)
 956         AC_MSG_RESULT(ok)
 957         ;;
 958 esac
 959 ])dnl
 960 dnl ---------------------------------------------------------------------------
 961 dnl CF_CFG_DEFAULTS version: 16 updated: 2021/01/04 19:33:05
 962 dnl ---------------
 963 dnl Determine the default configuration into which we'll install ncurses.  This
 964 dnl can be overridden by the user's command-line options.  There's two items to
 965 dnl look for:
 966 dnl     1. the prefix (e.g., /usr)
 967 dnl     2. the header files (e.g., /usr/include/ncurses)
 968 dnl We'll look for a previous installation of ncurses and use the same defaults.
 969 dnl
 970 dnl We don't use AC_PREFIX_DEFAULT, because it gets evaluated too soon, and
 971 dnl we don't use AC_PREFIX_PROGRAM, because we cannot distinguish ncurses's
 972 dnl programs from a vendor's.
 973 AC_DEFUN([CF_CFG_DEFAULTS],
 974 [AC_REQUIRE([AC_PROG_FGREP])dnl
 975
 976 AC_MSG_CHECKING(for prefix)
 977 if test "x$prefix" = "xNONE" ; then
 978         case "$cf_cv_system_name" in
 979                 # non-vendor systems don't have a conflict
 980         (openbsd*|freebsd*|mirbsd*|linux*|cygwin*|msys*|k*bsd*-gnu|mingw*)
 981                 prefix=/usr
 982                 ;;
 983         (*)     prefix=$ac_default_prefix
 984                 ;;
 985         esac
 986 fi
 987 AC_MSG_RESULT($prefix)
 988
 989 if test "x$prefix" = "xNONE" ; then
 990 AC_MSG_CHECKING(for default include-directory)
 991 test -n "$verbose" && echo 1>&AC_FD_MSG
 992 for cf_symbol in \
 993         "$includedir" \
 994         "$includedir/ncurses" \
 995         "$prefix/include" \
 996         "$prefix/include/ncurses" \
 997         /usr/local/include \
 998         /usr/local/include/ncurses \
 999         /usr/include \
1000         /usr/include/ncurses
1001 do
1002         cf_dir=`eval echo "$cf_symbol"`
1003         if test -f "$cf_dir/curses.h" ; then
1004         if ( ${FGREP-fgrep} NCURSES_VERSION "$cf_dir/curses.h" >/dev/null 2>&1 ) ; then
1005                 includedir="$cf_symbol"
1006                 test -n "$verbose"  && echo $ECHO_N "   found " 1>&AC_FD_MSG
1007                 break
1008         fi
1009         fi
1010         test -n "$verbose"  && echo "   tested $cf_dir" 1>&AC_FD_MSG
1011 done
1012 AC_MSG_RESULT($includedir)
1013 fi
1014 ])dnl
1015 dnl ---------------------------------------------------------------------------
1016 dnl CF_CGETENT version: 7 updated: 2023/02/18 17:41:25
1017 dnl ----------
1018 dnl Check if the terminal-capability database functions are available.  If not,
1019 dnl ncurses has a much-reduced version.
1020 AC_DEFUN([CF_CGETENT],[
1021 AC_CACHE_CHECK(for terminal-capability database functions,cf_cv_cgetent,[
1022 AC_TRY_LINK([
1023 $ac_includes_default],[
1024         char temp[128];
1025         char *buf = temp;
1026         char *db_array = temp;
1027         cgetent(&buf, &db_array, "vt100");
1028         cgetcap(buf, "tc", '=');
1029         cgetmatch(buf, "tc");
1030         ],
1031         [cf_cv_cgetent=yes],
1032         [cf_cv_cgetent=no])
1033 ])
1034
1035 if test "$cf_cv_cgetent" = yes
1036 then
1037         AC_DEFINE(HAVE_BSD_CGETENT,1,[Define to 1 if we have BSD cgetent])
1038 AC_CACHE_CHECK(if cgetent uses const parameter,cf_cv_cgetent_const,[
1039 AC_TRY_LINK([
1040 #pragma GCC diagnostic error "-Wincompatible-pointer-types-discards-qualifiers"
1041 $ac_includes_default],[
1042         char temp[128];
1043         char *buf = temp;
1044 #ifndef _NETBSD_SOURCE                  /* given, since April 2004 in stdlib.h */
1045         const char *db_array = temp;
1046         cgetent(&buf, &db_array, "vt100");
1047 #endif
1048         cgetcap(buf, "tc", '=');
1049         cgetmatch(buf, "tc");
1050         ],
1051         [cf_cv_cgetent_const=yes],
1052         [cf_cv_cgetent_const=no])
1053 ])
1054         if test "$cf_cv_cgetent_const" = yes
1055         then
1056                 AC_DEFINE_UNQUOTED(CGETENT_CONST,const,[Define to const if needed for some BSD cgetent variations])
1057         fi
1058 fi
1059 ])dnl
1060 dnl ---------------------------------------------------------------------------
1061 dnl CF_CHECK_CACHE version: 13 updated: 2020/12/31 10:54:15
1062 dnl --------------
1063 dnl Check if we're accidentally using a cache from a different machine.
1064 dnl Derive the system name, as a check for reusing the autoconf cache.
1065 dnl
1066 dnl If we've packaged config.guess and config.sub, run that (since it does a
1067 dnl better job than uname).  Normally we'll use AC_CANONICAL_HOST, but allow
1068 dnl an extra parameter that we may override, e.g., for AC_CANONICAL_SYSTEM
1069 dnl which is useful in cross-compiles.
1070 dnl
1071 dnl Note: we would use $ac_config_sub, but that is one of the places where
1072 dnl autoconf 2.5x broke compatibility with autoconf 2.13
1073 AC_DEFUN([CF_CHECK_CACHE],
1074 [
1075 if test -f "$srcdir/config.guess" || test -f "$ac_aux_dir/config.guess" ; then
1076         ifelse([$1],,[AC_CANONICAL_HOST],[$1])
1077         system_name="$host_os"
1078 else
1079         system_name="`(uname -s -r) 2>/dev/null`"
1080         if test -z "$system_name" ; then
1081                 system_name="`(hostname) 2>/dev/null`"
1082         fi
1083 fi
1084 test -n "$system_name" && AC_DEFINE_UNQUOTED(SYSTEM_NAME,"$system_name",[Define to the system name.])
1085 AC_CACHE_VAL(cf_cv_system_name,[cf_cv_system_name="$system_name"])
1086
1087 test -z "$system_name" && system_name="$cf_cv_system_name"
1088 test -n "$cf_cv_system_name" && AC_MSG_RESULT(Configuring for $cf_cv_system_name)
1089
1090 if test ".$system_name" != ".$cf_cv_system_name" ; then
1091         AC_MSG_RESULT(Cached system name ($system_name) does not agree with actual ($cf_cv_system_name))
1092         AC_MSG_ERROR("Please remove config.cache and try again.")
1093 fi
1094 ])dnl
1095 dnl ---------------------------------------------------------------------------
1096 dnl CF_CHECK_ENVIRON version: 5 updated: 2023/02/18 17:41:25
1097 dnl ----------------
1098 dnl Check for data that is usually declared in <unistd.h>, e.g., the 'environ'
1099 dnl variable.  Define a DECL_xxx symbol if we must declare it ourselves.
1100 dnl
1101 dnl $1 = the name to check
1102 dnl $2 = the assumed type
1103 AC_DEFUN([CF_CHECK_ENVIRON],
1104 [
1105 AC_CACHE_CHECK(if external $1 is declared, cf_cv_dcl_$1,[
1106     AC_TRY_COMPILE([
1107 $ac_includes_default],
1108     ifelse([$2],,void*,[$2]) x = (ifelse([$2],,void*,[$2])) $1; (void)x,
1109     [cf_cv_dcl_$1=yes],
1110     [cf_cv_dcl_$1=no])
1111 ])
1112
1113 if test "$cf_cv_dcl_$1" = no ; then
1114     CF_UPPER(cf_result,decl_$1)
1115     AC_DEFINE_UNQUOTED($cf_result)
1116 fi
1117
1118 # It's possible (for near-UNIX clones) that the data doesn't exist
1119 CF_CHECK_EXTERN_DATA($1,ifelse([$2],,int,[$2]))
1120 ])dnl
1121 dnl ---------------------------------------------------------------------------
1122 dnl CF_CHECK_ERRNO version: 14 updated: 2023/02/18 17:41:25
1123 dnl --------------
1124 dnl Check for data that is usually declared in <stdio.h> or <errno.h>, e.g.,
1125 dnl the 'errno' variable.  Define a DECL_xxx symbol if we must declare it
1126 dnl ourselves.
1127 dnl
1128 dnl $1 = the name to check
1129 dnl $2 = the assumed type
1130 AC_DEFUN([CF_CHECK_ERRNO],
1131 [
1132 AC_CACHE_CHECK(if external $1 is declared, cf_cv_dcl_$1,[
1133         AC_TRY_COMPILE([
1134 $ac_includes_default
1135 #include <errno.h> ],
1136         ifelse([$2],,int,[$2]) x = (ifelse([$2],,int,[$2])) $1; (void)x,
1137         [cf_cv_dcl_$1=yes],
1138         [cf_cv_dcl_$1=no])
1139 ])
1140
1141 if test "$cf_cv_dcl_$1" = no ; then
1142         CF_UPPER(cf_result,decl_$1)
1143         AC_DEFINE_UNQUOTED($cf_result)
1144 fi
1145
1146 # It's possible (for near-UNIX clones) that the data doesn't exist
1147 CF_CHECK_EXTERN_DATA($1,ifelse([$2],,int,[$2]))
1148 ])dnl
1149 dnl ---------------------------------------------------------------------------
1150 dnl CF_CHECK_EXTERN_DATA version: 5 updated: 2021/09/04 06:35:04
1151 dnl --------------------
1152 dnl Check for existence of external data in the current set of libraries.  If
1153 dnl we can modify it, it is real enough.
1154 dnl $1 = the name to check
1155 dnl $2 = its type
1156 AC_DEFUN([CF_CHECK_EXTERN_DATA],
1157 [
1158 AC_CACHE_CHECK(if external $1 exists, cf_cv_have_$1,[
1159         AC_TRY_LINK([
1160 #undef $1
1161 extern $2 $1;
1162 ],
1163         [$1 = 2],
1164         [cf_cv_have_$1=yes],
1165         [cf_cv_have_$1=no])
1166 ])
1167
1168 if test "$cf_cv_have_$1" = yes ; then
1169         CF_UPPER(cf_result,have_$1)
1170         AC_DEFINE_UNQUOTED($cf_result)
1171 fi
1172
1173 ])dnl
1174 dnl ---------------------------------------------------------------------------
1175 dnl CF_CHECK_FVISIBILITY version: 2 updated: 2020/04/04 16:16:13
1176 dnl --------------------
1177 dnl Check whether the compiler understands -fvisibility=hidden
1178 dnl
1179 dnl $1 = compiler
1180 dnl $2 = compiler-flags variable name
1181 dnl $3 = cache variable to set
1182 AC_DEFUN([CF_CHECK_FVISIBILITY],[
1183 AC_CACHE_CHECK(if $1 -fvisibility=hidden option works,$3,[
1184     cf_save_cflags="[$]$2"
1185     $2="[$]$2 -fvisibility=hidden"
1186     AC_TRY_LINK([
1187 __attribute__ ((visibility("default"))) int somefunc() {return 42;}
1188         ],[
1189         if (somefunc()) return 1;
1190 ],
1191     [$3=yes],
1192     [$3=no])
1193     $2=$cf_save_cflags
1194 ])
1195 ])dnl
1196 dnl ---------------------------------------------------------------------------
1197 dnl CF_CHECK_GETENV version: 3 updated: 2023/01/05 17:47:56
1198 dnl ---------------
1199 dnl Check if repeated getenv calls return the same pointer, e.g., it does not
1200 dnl discard the previous pointer when returning a new one.
1201 AC_DEFUN([CF_CHECK_GETENV],
1202 [
1203 AC_REQUIRE([CF_CHECK_ENVIRON])
1204 AC_CHECK_FUNC( getenv, ,, AC_MSG_ERROR(getenv not found) )
1205 AC_CHECK_FUNCS( putenv setenv strdup )
1206 AC_CACHE_CHECK(if getenv returns consistent values,cf_cv_consistent_getenv,[
1207 AC_TRY_RUN([
1208 $ac_includes_default
1209
1210 #if defined(HAVE_ENVIRON) && defined(DECL_ENVIRON) && !defined(environ)
1211 extern char **environ;  /* POSIX, but some systems are not... */
1212 #endif
1213
1214 #if defined(HAVE_STRDUP)
1215 #define str_alloc(s) strdup(s)
1216 #else
1217 #define str_alloc(s) strcpy(malloc(strlen(s) + 1, s))
1218 #endif
1219
1220 static void set_value(const char *name, const char *value)
1221 {
1222 #if defined(HAVE_SETENV)
1223         setenv(name, value, 1);
1224 #elif defined(HAVE_PUTENV)
1225         char buffer[1024];
1226         sprintf(buffer, "%s=%s", name, value);
1227         putenv(str_alloc(buffer));
1228 #else
1229 #error neither putenv/setenv found
1230 #endif
1231 }
1232 int main(void)
1233 {
1234         int pass;
1235         size_t numenv, limit, j;
1236         char **mynames;
1237         char **myvalues;
1238         char **mypointer;
1239         char *equals;
1240         for (numenv = 0; environ[numenv]; ++numenv) ;
1241         limit = numenv + 10;
1242         mynames = (char **) calloc(limit + 1, sizeof(char *));
1243         myvalues = (char **) calloc(limit + 1, sizeof(char *));
1244         mypointer = (char **) calloc(limit + 1, sizeof(char *));
1245 #if defined(HAVE_ENVIRON)
1246         for (j = 0; environ[j]; ++j) {
1247                 mynames[j] = str_alloc(environ[j]);
1248                 equals = strchr(mynames[j], '=');
1249                 if (equals != 0) {
1250                         *equals++ = '\\0';
1251                         myvalues[j] = str_alloc(equals);
1252                 } else {
1253                         myvalues[j] = str_alloc("");
1254                 }
1255         }
1256 #endif
1257         for (j = numenv; j < limit; ++j) {
1258                 char name[80];
1259                 char value[80];
1260                 size_t found;
1261                 size_t k = 0;
1262                 do {
1263                         size_t jk;
1264                         found = 0;
1265                         sprintf(name, "TERM%lu", (unsigned long) k);
1266                         for (jk = 0; jk < j; ++jk) {
1267                                 if (!strcmp(name, mynames[jk])) {
1268                                         found = 1;
1269                                         ++k;
1270                                         break;
1271                                 }
1272                         }
1273                 } while (found);
1274                 sprintf(value, "%lu:%p", (unsigned long) k, &mynames[j]);
1275                 set_value(name, value);
1276                 mynames[j] = str_alloc(name);
1277                 myvalues[j] = str_alloc(value);
1278         }
1279         for (pass = 0; pass < 3; ++pass) {
1280                 for (j = 0; j < limit; ++j) {
1281                         char *value = getenv(mynames[j]);
1282                         if (pass) {
1283                                 if (value == 0) {
1284                                         fprintf(stderr, "getenv returned null for %s\\n", mynames[j]);
1285                                         ${cf_cv_main_return:-return}(1);
1286                                 } else if (value != mypointer[j]) {
1287                                         fprintf(stderr, "getenv returned different pointer for %s\\n", mynames[j]);
1288                                         ${cf_cv_main_return:-return}(1);
1289                                 } else if (strcmp(value, myvalues[j])) {
1290                                         fprintf(stderr, "getenv returned different value for %s\\n", mynames[j]);
1291                                         ${cf_cv_main_return:-return}(1);
1292                                 }
1293                         } else {
1294                                 size_t k;
1295                                 mypointer[j] = value;
1296                                 for (k = 0; k < j; ++k) {
1297                                         if (mypointer[j] == mypointer[k]) {
1298                                                 fprintf(stderr, "getenv returned same pointer for %s and %s\\n", mynames[j], mynames[k]);
1299                                                 ${cf_cv_main_return:-return}(1);
1300                                         }
1301                                 }
1302                         }
1303                 }
1304         }
1305         ${cf_cv_main_return:-return}(0);
1306 }
1307 ],
1308 [cf_cv_consistent_getenv=yes],
1309 [cf_cv_consistent_getenv=no],
1310 [cf_cv_consistent_getenv=unknown])
1311 ])
1312
1313 if test "x$cf_cv_consistent_getenv" = xno
1314 then
1315         AC_DEFINE(HAVE_CONSISTENT_GETENV,1,[Define to 1 if getenv repeatably returns the same value for a given name])
1316 fi
1317 ])dnl
1318 dnl ---------------------------------------------------------------------------
1319 dnl CF_CHECK_GNAT_VERSION version: 4 updated: 2021/01/01 13:31:04
1320 dnl ---------------------
1321 AC_DEFUN([CF_CHECK_GNAT_VERSION],
1322 [
1323 AC_REQUIRE([CF_GNAT_VERSION])
1324 case "$cf_cv_gnat_version" in
1325 (3.1[[1-9]]*|3.[[2-9]]*|[[4-9]].*|[[1-9]][[0-9]].[[0-9]]*|20[[0-9]][[0-9]])
1326         cf_cv_prog_gnat_correct=yes
1327         ;;
1328 (*)
1329         AC_MSG_WARN(Unsupported GNAT version $cf_cv_gnat_version. We require 3.11 or better. Disabling Ada95 binding.)
1330         cf_cv_prog_gnat_correct=no
1331         ;;
1332 esac
1333 ])
1334 dnl ---------------------------------------------------------------------------
1335 dnl CF_CHECK_GPM_WGETCH version: 6 updated: 2021/01/04 18:48:01
1336 dnl -------------------
1337 dnl Check if GPM is already linked with curses.  If so - and if the linkage
1338 dnl is not "weak" - warn about this because it can create problems linking
1339 dnl applications with ncurses.
1340 AC_DEFUN([CF_CHECK_GPM_WGETCH],[
1341 AC_REQUIRE([AC_PROG_EGREP])dnl
1342
1343 AC_CHECK_LIB(gpm,Gpm_Wgetch,[
1344
1345 AC_CACHE_CHECK(if GPM is weakly bound to curses library, cf_cv_check_gpm_wgetch,[
1346 cf_cv_check_gpm_wgetch=unknown
1347 if test "$cross_compiling" != yes ; then
1348
1349 cat >conftest.$ac_ext <<CF_EOF
1350 #include <gpm.h>
1351 int main(void)
1352 {
1353         Gpm_Wgetch();
1354         ${cf_cv_main_return:-return}(0);
1355 }
1356 CF_EOF
1357
1358         cf_save_LIBS="$LIBS"
1359         # This only works if we can look at the symbol table.  If a shared
1360         # library is stripped for install, we cannot use that.  So we're forced
1361         # to rely on the static library, noting that some packagers may not
1362         # include it.
1363         LIBS="-static -lgpm -dynamic $LIBS"
1364         if AC_TRY_EVAL(ac_compile) ; then
1365                 if AC_TRY_EVAL(ac_link) ; then
1366                         cf_cv_check_gpm_wgetch="`nm \"conftest$ac_exeext\" | ${EGREP-egrep} '\<wgetch\>' | ${EGREP-egrep} '\<[[vVwW]]\>'`"
1367                         test -n "$cf_cv_check_gpm_wgetch" && cf_cv_check_gpm_wgetch=yes
1368                         test -z "$cf_cv_check_gpm_wgetch" && cf_cv_check_gpm_wgetch=no
1369                 fi
1370         fi
1371         rm -rf ./conftest*
1372         LIBS="$cf_save_LIBS"
1373 fi
1374 ])
1375
1376 if test "$cf_cv_check_gpm_wgetch" != yes ; then
1377         AC_MSG_WARN(GPM library is already linked with curses - read the FAQ)
1378 fi
1379 ])])dnl
1380 dnl ---------------------------------------------------------------------------
1381 dnl CF_CHECK_LIBSSP version: 1 updated: 2021/10/30 10:40:19
1382 dnl ---------------
1383 dnl Check if libssp is needed, e.g., to work around misconfigured libraries
1384 dnl used in cross-compiling to MinGW.
1385 AC_DEFUN([CF_CHECK_LIBSSP],[
1386 AC_CACHE_CHECK(if ssp library is needed,cf_cv_need_libssp,[
1387 AC_TRY_LINK([
1388 #include <sys/types.h>
1389 #include <dirent.h>
1390 ],[
1391        DIR *dp = opendir(".");
1392 ],cf_cv_need_libssp=no,[
1393         cf_save_LIBS="$LIBS"
1394         LIBS="$LIBS -lssp"
1395         AC_TRY_LINK([
1396 #include <sys/types.h>
1397 #include <dirent.h>
1398         ],[
1399                    DIR *dp = opendir(".");
1400         ],cf_cv_need_libssp=yes,
1401           cf_cv_need_libssp=maybe)
1402         LIBS="$cf_save_LIBS"
1403 ])dnl
1404 ])
1405
1406 if test "x$cf_cv_need_libssp" = xyes
1407 then
1408         CF_ADD_LIB(ssp)
1409 fi
1410 ])dnl
1411 dnl ---------------------------------------------------------------------------
1412 dnl CF_CHECK_LIBTOOL_VERSION version: 2 updated: 2021/05/01 16:24:34
1413 dnl ------------------------
1414 dnl Show the version of libtool
1415 dnl
1416 dnl Save the version in a cache variable - this is not entirely a good thing,
1417 dnl but the version string from libtool is very ugly, and for bug reports it
1418 dnl might be useful to have the original string.
1419 dnl
1420 dnl There is an imitation in OpenBSD, which has no apparent use other than to
1421 dnl deny that it is GNU libtool.  Just ignore it.
1422 AC_DEFUN([CF_CHECK_LIBTOOL_VERSION],[
1423 if test -n "$LIBTOOL" && test "$LIBTOOL" != none
1424 then
1425         AC_MSG_CHECKING(version of $LIBTOOL)
1426         CF_LIBTOOL_VERSION
1427         AC_MSG_RESULT($cf_cv_libtool_version)
1428         if test -n "$cf_cv_libtool_version"
1429         then
1430                 cf_check_libtool_version=`$LIBTOOL --version 2>&1 | sed -e '/^$/d' -e 's,[[()]],...,g' -e 's,[[ ]],-,g' -e '2,$d'`
1431                 case "x$cf_check_libtool_version" in
1432                 (*...GNU-libtool...*)
1433                         ;;
1434                 (*)
1435                         AC_MSG_ERROR(This is not GNU libtool)
1436                         ;;
1437                 esac
1438         else
1439                 AC_MSG_ERROR(No version found for $LIBTOOL)
1440         fi
1441 else
1442         AC_MSG_ERROR(GNU libtool has not been found)
1443 fi
1444 ])dnl
1445 dnl ---------------------------------------------------------------------------
1446 dnl CF_CHECK_WCHAR_H version: 4 updated: 2023/02/18 17:41:25
1447 dnl ----------------
1448 dnl Check if wchar.h can be used, i.e., without defining _XOPEN_SOURCE_EXTENDED
1449 AC_DEFUN([CF_CHECK_WCHAR_H],[
1450 AC_CHECK_HEADERS( \
1451 wchar.h \
1452 wctype.h \
1453 )
1454 AC_CACHE_CHECK(if wchar.h can be used as is,cf_cv_wchar_h_okay,[
1455 AC_TRY_COMPILE(
1456 [
1457 $ac_includes_default
1458 #ifdef HAVE_WCHAR_H
1459 #include <wchar.h>
1460 #endif
1461 #ifdef HAVE_WCTYPE_H
1462 #include <wctype.h>
1463 #endif
1464 ],[
1465         wint_t foo = 0;
1466         int bar = iswpunct(foo)],
1467         [cf_cv_wchar_h_okay=yes],
1468         [cf_cv_wchar_h_okay=no])])
1469
1470 if test "$cf_cv_wchar_h_okay" = no
1471 then
1472         CF_PREDEFINE(_XOPEN_SOURCE_EXTENDED)
1473 fi
1474 ])dnl
1475 dnl ---------------------------------------------------------------------------
1476 dnl CF_CHECK_WCWIDTH_GRAPHICS version: 3 updated: 2023/01/05 18:01:30
1477 dnl -------------------------
1478 dnl Most "modern" terminal emulators are based to some degree on VT100, and
1479 dnl should support line-drawing.  Even with Unicode.  There is a problem.
1480 dnl
1481 dnl While most of the VT100 graphics characters were incorporated into Unicode,
1482 dnl all of those were combined into a page of useful graphics characters.
1483 dnl
1484 dnl So far, so good.
1485 dnl
1486 dnl However, while they are useful, there are other considerations.  CJK
1487 dnl is (because of poor device resolution) often rendered as double-width
1488 dnl characters.  So... for these generally-useful characters, what should
1489 dnl be the width (to make them consistent with adjacent characters)?
1490 dnl
1491 dnl The obvious choice would have been to make this locale-dependent, and use
1492 dnl wcwidth() to tell applications what the actual width is.  That was too
1493 dnl obvious.  Instead, we have a slew of "ambiguous-width" characters.
1494 dnl See for example
1495 dnl             http://www.unicode.org/reports/tr11/tr11-29.html
1496 dnl             http://www.cl.cam.ac.uk/~mgk25/ucs/scw-proposal.html
1497 dnl
1498 dnl The EastAsianWidth-6.2.0.txt file from the Unicode organization lists
1499 dnl more than 22,000 characters, with 1281 of those as ambiguous-width.  For
1500 dnl instance, it lists half (44/96) of the Latin-1 characters as
1501 dnl ambiguous-width.  Also, all of the box-characters at 0x2500 are ambiguous.
1502 dnl
1503 dnl What this means for the implementor is that on some systems wcwidth() can
1504 dnl give bad advice.  On Solaris, some of the ambiguous widths are returned as
1505 dnl 1 (the Latin-1 characters), while others are returned as 2 (line-drawing
1506 dnl characters).  These do not necessarily match the behavior of the terminal
1507 dnl emulator.  xterm, for instance, does an optional startup check to find if
1508 dnl this problem (or similar) exists with the system's locale tables, rejecting
1509 dnl them if they are too unreliable.
1510 AC_DEFUN([CF_CHECK_WCWIDTH_GRAPHICS],[
1511 AC_CACHE_CHECK(if wcwidth agrees graphics are single-width, cf_cv_wcwidth_graphics,[
1512 cat >conftest.in <<CF_EOF
1513 -       VT100 symbols
1514 0x250c  upper left corner
1515 0x2514  lower left corner
1516 0x2510  upper right corner
1517 0x2518  lower right corner
1518 0x251c  tee pointing left
1519 0x2524  tee pointing right
1520 0x2534  tee pointing up
1521 0x252c  tee pointing down
1522 0x2500  horizontal line
1523 0x2502  vertical line
1524 0x253c  large plus or crossover
1525 0x23ba  scan line 1
1526 0x23bd  scan line 9
1527 0x25c6  diamond
1528 0x2592  checker board (stipple)
1529 0x00b0  degree symbol
1530 0x00b1  plus/minus
1531 0x00b7  bullet
1532 -       Teletype 5410v1 symbols
1533 0x2190  arrow pointing left
1534 0x2192  arrow pointing right
1535 0x2193  arrow pointing down
1536 0x2191  arrow pointing up
1537 0x2592  board of squares
1538 0x2603  lantern symbol
1539 0x25ae  solid square block
1540 -       these defaults were invented for ncurses
1541 0x23bb  scan line 3
1542 0x23bc  scan line 7
1543 0x2264  less-than-or-equal-to
1544 0x2265  greater-than-or-equal-to
1545 0x03c0  greek pi
1546 0x2260  not-equal
1547 0x00a3  pound-sterling symbol
1548 -       thick-line-drawing
1549 0x250f  upper left corner
1550 0x2517  lower left corner
1551 0x2513  upper right corner
1552 0x251b  lower right corner
1553 0x2523  tee pointing left
1554 0x252b  tee pointing right
1555 0x253b  tee pointing up
1556 0x2533  tee pointing down
1557 0x2501  horizontal line
1558 0x2503  vertical line
1559 0x254b  large plus or crossover
1560 -       double-line-drawing
1561 0x2554  upper left corner
1562 0x255a  lower left corner
1563 0x2557  upper right corner
1564 0x255d  lower right corner
1565 0x2563  tee pointing left
1566 0x2560  tee pointing right
1567 0x2569  tee pointing up
1568 0x2566  tee pointing down
1569 0x2550  horizontal line
1570 0x2551  vertical line
1571 0x256c  large plus or crossover
1572 CF_EOF
1573 AC_TRY_RUN([
1574 $ac_includes_default
1575
1576 #include <locale.h>
1577 #include <wchar.h>
1578
1579 #define MY_LEN 80
1580
1581 int
1582 main(void)
1583 {
1584         FILE *fp;
1585         int value;
1586         char buffer[MY_LEN + 1];
1587         char notes[MY_LEN + 1];
1588         int totals = 0;
1589         int passed = 0;
1590
1591         if (setlocale(LC_ALL, "en_US.UTF8") ||
1592                 setlocale(LC_ALL, "en_US.UTF-8") ||
1593                 setlocale(LC_ALL, "en_US.utf8") ||
1594                 setlocale(LC_ALL, "en_US.utf-8")) {
1595                 if ((fp = fopen("conftest.in", "r")) != 0) {
1596                         while (fgets(buffer, MY_LEN, fp) != 0) {
1597                                 if (*buffer == '-') {
1598                                         fprintf(stderr, "\\t%s", buffer);
1599                                 } else if (sscanf(buffer, "%x %s", &value, notes) == 2) {
1600                                         ++totals;
1601                                         if (wcwidth(value) == 1)
1602                                                 ++passed;
1603                                         fprintf(stderr, "%d\\t%s", wcwidth(value), buffer);
1604                                 } else {
1605                                         fprintf(stderr, "?\\t%s", buffer);
1606                                 }
1607                         }
1608                 }
1609         }
1610         fprintf(stderr, "%d/%d passed wcwidth/graphics check\\n", passed, totals);
1611         return (totals == passed) ? 0 : 1;
1612 }
1613 ],
1614 [cf_cv_wcwidth_graphics=yes],
1615 [cf_cv_wcwidth_graphics=no],
1616 [cf_cv_wcwidth_graphics=unknown])
1617 ])
1618 ])dnl
1619 dnl ---------------------------------------------------------------------------
1620 dnl CF_CLANG_COMPILER version: 9 updated: 2023/02/18 17:41:25
1621 dnl -----------------
1622 dnl Check if the given compiler is really clang.  clang's C driver defines
1623 dnl __GNUC__ (fooling the configure script into setting $GCC to yes) but does
1624 dnl not ignore some gcc options.
1625 dnl
1626 dnl This macro should be run "soon" after AC_PROG_CC or AC_PROG_CPLUSPLUS, to
1627 dnl ensure that it is not mistaken for gcc/g++.  It is normally invoked from
1628 dnl the wrappers for gcc and g++ warnings.
1629 dnl
1630 dnl $1 = GCC (default) or GXX
1631 dnl $2 = CLANG_COMPILER (default)
1632 dnl $3 = CFLAGS (default) or CXXFLAGS
1633 AC_DEFUN([CF_CLANG_COMPILER],[
1634 ifelse([$2],,CLANG_COMPILER,[$2])=no
1635
1636 if test "$ifelse([$1],,[$1],GCC)" = yes ; then
1637         AC_MSG_CHECKING(if this is really Clang ifelse([$1],GXX,C++,C) compiler)
1638         cf_save_CFLAGS="$ifelse([$3],,CFLAGS,[$3])"
1639         AC_TRY_COMPILE([],[
1640 #ifdef __clang__
1641 #else
1642 #error __clang__ is not defined
1643 #endif
1644 ],[ifelse([$2],,CLANG_COMPILER,[$2])=yes
1645 ],[])
1646         ifelse([$3],,CFLAGS,[$3])="$cf_save_CFLAGS"
1647         AC_MSG_RESULT($ifelse([$2],,CLANG_COMPILER,[$2]))
1648 fi
1649
1650 CLANG_VERSION=none
1651
1652 if test "x$ifelse([$2],,CLANG_COMPILER,[$2])" = "xyes" ; then
1653         case "$CC" in
1654         (c[[1-9]][[0-9]]|*/c[[1-9]][[0-9]])
1655                 AC_MSG_WARN(replacing broken compiler alias $CC)
1656                 CFLAGS="$CFLAGS -std=`echo "$CC" | sed -e 's%.*/%%'`"
1657                 CC=clang
1658                 ;;
1659         esac
1660
1661         AC_MSG_CHECKING(version of $CC)
1662         CLANG_VERSION="`$CC --version 2>/dev/null | sed -e '2,$d' -e 's/^.*(CLANG[[^)]]*) //' -e 's/^.*(Debian[[^)]]*) //' -e 's/^[[^0-9.]]*//' -e 's/[[^0-9.]].*//'`"
1663         test -z "$CLANG_VERSION" && CLANG_VERSION=unknown
1664         AC_MSG_RESULT($CLANG_VERSION)
1665
1666         for cf_clang_opt in \
1667                 -Qunused-arguments \
1668                 -Wno-error=implicit-function-declaration
1669         do
1670                 AC_MSG_CHECKING(if option $cf_clang_opt works)
1671                 cf_save_CFLAGS="$CFLAGS"
1672                 CFLAGS="$CFLAGS $cf_clang_opt"
1673                 AC_TRY_LINK([
1674                         #include <stdio.h>],[
1675                         printf("hello!\\n");],[
1676                         cf_clang_optok=yes],[
1677                         cf_clang_optok=no])
1678                 AC_MSG_RESULT($cf_clang_optok)
1679                 CFLAGS="$cf_save_CFLAGS"
1680                 if test "$cf_clang_optok" = yes; then
1681                         CF_VERBOSE(adding option $cf_clang_opt)
1682                         CF_APPEND_TEXT(CFLAGS,$cf_clang_opt)
1683                 fi
1684         done
1685 fi
1686 ])
1687 dnl ---------------------------------------------------------------------------
1688 dnl CF_CONST_X_STRING version: 7 updated: 2021/06/07 17:39:17
1689 dnl -----------------
1690 dnl The X11R4-X11R6 Xt specification uses an ambiguous String type for most
1691 dnl character-strings.
1692 dnl
1693 dnl It is ambiguous because the specification accommodated the pre-ANSI
1694 dnl compilers bundled by more than one vendor in lieu of providing a standard C
1695 dnl compiler other than by costly add-ons.  Because of this, the specification
1696 dnl did not take into account the use of const for telling the compiler that
1697 dnl string literals would be in readonly memory.
1698 dnl
1699 dnl As a workaround, one could (starting with X11R5) define XTSTRINGDEFINES, to
1700 dnl let the compiler decide how to represent Xt's strings which were #define'd.
1701 dnl That does not solve the problem of using the block of Xt's strings which
1702 dnl are compiled into the library (and is less efficient than one might want).
1703 dnl
1704 dnl Xt specification 7 introduces the _CONST_X_STRING symbol which is used both
1705 dnl when compiling the library and compiling using the library, to tell the
1706 dnl compiler that String is const.
1707 AC_DEFUN([CF_CONST_X_STRING],
1708 [
1709 AC_REQUIRE([AC_PATH_XTRA])
1710
1711 CF_SAVE_XTRA_FLAGS([CF_CONST_X_STRING])
1712
1713 AC_TRY_COMPILE(
1714 [
1715 #include <stdlib.h>
1716 #include <X11/Intrinsic.h>
1717 ],
1718 [String foo = malloc(1); free((void*)foo)],[
1719
1720 AC_CACHE_CHECK(for X11/Xt const-feature,cf_cv_const_x_string,[
1721         AC_TRY_COMPILE(
1722                 [
1723 #define _CONST_X_STRING /* X11R7.8 (perhaps) */
1724 #undef  XTSTRINGDEFINES /* X11R5 and later */
1725 #include <stdlib.h>
1726 #include <X11/Intrinsic.h>
1727                 ],[String foo = malloc(1); *foo = 0],[
1728                         cf_cv_const_x_string=no
1729                 ],[
1730                         cf_cv_const_x_string=yes
1731                 ])
1732 ])
1733
1734 CF_RESTORE_XTRA_FLAGS([CF_CONST_X_STRING])
1735
1736 case "$cf_cv_const_x_string" in
1737 (no)
1738         CF_APPEND_TEXT(CPPFLAGS,-DXTSTRINGDEFINES)
1739         ;;
1740 (*)
1741         CF_APPEND_TEXT(CPPFLAGS,-D_CONST_X_STRING)
1742         ;;
1743 esac
1744
1745 ])
1746 ])dnl
1747 dnl ---------------------------------------------------------------------------
1748 dnl CF_CPP_OVERRIDE version: 1 updated: 2022/08/20 16:07:10
1749 dnl ---------------
1750 dnl Check if the C++ compiler accepts the override keyword.  This is a C++-11
1751 dnl feature.
1752 AC_DEFUN([CF_CPP_OVERRIDE],
1753 [
1754 if test -n "$CXX"; then
1755 AC_CACHE_CHECK(if $CXX accepts override keyword,cf_cv_cpp_override,[
1756         AC_LANG_SAVE
1757         AC_LANG_CPLUSPLUS
1758         AC_TRY_RUN([
1759
1760 class base
1761 {
1762 public:
1763         virtual int foo(float x) = 0;
1764 };
1765
1766
1767 class derived: public base
1768 {
1769 public:
1770         int foo(float x) override { return x != 0.0 ? 1 : 0; }
1771 };
1772
1773 int main(void) { }
1774 ],
1775         [cf_cv_cpp_override=yes],
1776         [cf_cv_cpp_override=no],
1777         [cf_cv_cpp_override=unknown])
1778         AC_LANG_RESTORE
1779 ])
1780 fi
1781 test "$cf_cv_cpp_override" = yes && AC_DEFINE(CPP_HAS_OVERRIDE,1,[Define to 1 if C++ has override keyword])
1782 ])dnl
1783 dnl ---------------------------------------------------------------------------
1784 dnl CF_CPP_PARAM_INIT version: 7 updated: 2017/01/21 11:06:25
1785 dnl -----------------
1786 dnl Check if the C++ compiler accepts duplicate parameter initialization.  This
1787 dnl is a late feature for the standard and is not in some recent compilers
1788 dnl (1999/9/11).
1789 AC_DEFUN([CF_CPP_PARAM_INIT],
1790 [
1791 if test -n "$CXX"; then
1792 AC_CACHE_CHECK(if $CXX accepts parameter initialization,cf_cv_cpp_param_init,[
1793         AC_LANG_SAVE
1794         AC_LANG_CPLUSPLUS
1795         AC_TRY_RUN([
1796 class TEST {
1797 private:
1798         int value;
1799 public:
1800         TEST(int x = 1);
1801         ~TEST();
1802 };
1803
1804 TEST::TEST(int x = 1)   // some compilers do not like second initializer
1805 {
1806         value = x;
1807 }
1808 int main(void) { }
1809 ],
1810         [cf_cv_cpp_param_init=yes],
1811         [cf_cv_cpp_param_init=no],
1812         [cf_cv_cpp_param_init=unknown])
1813         AC_LANG_RESTORE
1814 ])
1815 fi
1816 test "$cf_cv_cpp_param_init" = yes && AC_DEFINE(CPP_HAS_PARAM_INIT,1,[Define to 1 if C++ has parameter initialization])
1817 ])dnl
1818 dnl ---------------------------------------------------------------------------
1819 dnl CF_CPP_STATIC_CAST version: 3 updated: 2013/04/13 18:03:21
1820 dnl ------------------
1821 dnl Check if the C++ compiler accepts static_cast in generics.  This appears to
1822 dnl not be supported in g++ before 3.0
1823 AC_DEFUN([CF_CPP_STATIC_CAST],
1824 [
1825 if test -n "$CXX"; then
1826
1827 AC_CACHE_CHECK(if $CXX accepts static_cast,cf_cv_cpp_static_cast,[
1828         AC_LANG_SAVE
1829         AC_LANG_CPLUSPLUS
1830
1831         AC_TRY_COMPILE([
1832 class NCursesPanel
1833 {
1834 public:
1835   NCursesPanel(int nlines,
1836                int ncols,
1837                int begin_y = 0,
1838                int begin_x = 0)
1839   {
1840   }
1841   NCursesPanel();
1842   ~NCursesPanel();
1843 };
1844
1845 template<class T> class NCursesUserPanel : public NCursesPanel
1846 {
1847 public:
1848   NCursesUserPanel (int nlines,
1849                     int ncols,
1850                     int begin_y = 0,
1851                     int begin_x = 0,
1852                     const T* p_UserData = static_cast<T*>(0))
1853     : NCursesPanel (nlines, ncols, begin_y, begin_x)
1854   {
1855   };
1856   NCursesUserPanel(const T* p_UserData = static_cast<T*>(0)) : NCursesPanel()
1857   {
1858   };
1859
1860   virtual ~NCursesUserPanel() {};
1861 };
1862 ],[
1863         const char* p_UserData = static_cast<char*>(0)],
1864         [cf_cv_cpp_static_cast=yes],
1865         [cf_cv_cpp_static_cast=no])
1866
1867         AC_LANG_RESTORE
1868 ])
1869
1870 fi
1871
1872 test "$cf_cv_cpp_static_cast" = yes && AC_DEFINE(CPP_HAS_STATIC_CAST,1,[Define to 1 if C++ has static_cast])
1873 ])dnl
1874 dnl ---------------------------------------------------------------------------
1875 dnl CF_CXX_AR_FLAGS version: 3 updated: 2021/01/01 13:31:04
1876 dnl ---------------
1877 dnl Setup special archiver flags for given compilers.
1878 AC_DEFUN([CF_CXX_AR_FLAGS],[
1879         CXX_AR='$(AR)'
1880         CXX_ARFLAGS='$(ARFLAGS)'
1881         case "$cf_cv_system_name" in
1882         (irix*)
1883             if test "$GXX" != yes ; then
1884                 CXX_AR='$(CXX)'
1885                 CXX_ARFLAGS='-ar -o'
1886             fi
1887             ;;
1888         (sco3.2v5*)
1889             CXXLDFLAGS="-u main"
1890             ;;
1891         (solaris2*)
1892             if test "$GXX" != yes ; then
1893                 CXX_AR='$(CXX)'
1894                 CXX_ARFLAGS='-xar -o'
1895             fi
1896             ;;
1897         esac
1898         AC_SUBST(CXXLDFLAGS)
1899         AC_SUBST(CXX_AR)
1900         AC_SUBST(CXX_ARFLAGS)
1901 ])dnl
1902 dnl ---------------------------------------------------------------------------
1903 dnl CF_CXX_IOSTREAM_NAMESPACE version: 2 updated: 2012/10/06 17:56:13
1904 dnl -------------------------
1905 dnl For c++, check if iostream uses "std::" namespace.
1906 AC_DEFUN([CF_CXX_IOSTREAM_NAMESPACE],[
1907 AC_CHECK_HEADERS(iostream)
1908 if test x"$ac_cv_header_iostream" = xyes ; then
1909         AC_MSG_CHECKING(if iostream uses std-namespace)
1910         AC_TRY_COMPILE([
1911 #include <iostream>
1912 using std::endl;
1913 using std::cerr;],[
1914 cerr << "testing" << endl;
1915 ],[cf_iostream_namespace=yes],[cf_iostream_namespace=no])
1916         AC_MSG_RESULT($cf_iostream_namespace)
1917         if test "$cf_iostream_namespace" = yes ; then
1918                 AC_DEFINE(IOSTREAM_NAMESPACE,1,[Define to 1 if C++ has namespace iostream])
1919         fi
1920 fi
1921 ])dnl
1922 dnl ---------------------------------------------------------------------------
1923 dnl CF_C_INLINE version: 6 updated: 2019/09/07 13:38:36
1924 dnl -----------
1925 dnl Check if the C compiler supports "inline".
1926 dnl $1 is the name of a shell variable to set if inline is supported
1927 dnl $2 is the threshold for gcc 4.x's option controlling maximum inline size
1928 AC_DEFUN([CF_C_INLINE],[
1929 AC_REQUIRE([CF_GCC_VERSION])
1930 AC_C_INLINE
1931 $1=
1932 if test "$ac_cv_c_inline" != no ; then
1933         $1=inline
1934         if test "$INTEL_COMPILER" = yes
1935         then
1936                 :
1937         elif test "$CLANG_COMPILER" = yes
1938         then
1939                 :
1940         elif test "$GCC" = yes
1941         then
1942                 AC_CACHE_CHECK(if $CC supports options to tune inlining,cf_cv_gcc_inline,[
1943                 cf_save_CFLAGS=$CFLAGS
1944                 CFLAGS="$CFLAGS --param max-inline-insns-single=$2"
1945                 AC_TRY_COMPILE([inline int foo(void) { return 1; }],
1946                 [${cf_cv_main_return:-return} foo()],
1947                 [cf_cv_gcc_inline=yes],
1948                 [cf_cv_gcc_inline=no])
1949                 CFLAGS=$cf_save_CFLAGS
1950                 ])
1951                 if test "$cf_cv_gcc_inline" = yes ; then
1952                         CF_ADD_CFLAGS([--param max-inline-insns-single=$2])
1953                 fi
1954         fi
1955 fi
1956 AC_SUBST($1)
1957 ])dnl
1958 dnl ---------------------------------------------------------------------------
1959 dnl CF_DIRNAME version: 5 updated: 2020/12/31 20:19:42
1960 dnl ----------
1961 dnl "dirname" is not portable, so we fake it with a shell script.
1962 AC_DEFUN([CF_DIRNAME],[$1=`echo "$2" | sed -e 's%/[[^/]]*$%%'`])dnl
1963 dnl ---------------------------------------------------------------------------
1964 dnl CF_DIRS_TO_MAKE version: 4 updated: 2021/01/01 13:31:04
1965 dnl ---------------
1966 AC_DEFUN([CF_DIRS_TO_MAKE],
1967 [
1968 DIRS_TO_MAKE="lib"
1969 for cf_item in $cf_list_models
1970 do
1971         CF_OBJ_SUBDIR($cf_item,cf_subdir)
1972         for cf_item2 in $DIRS_TO_MAKE
1973         do
1974                 test "$cf_item2" = "$cf_subdir" && break
1975         done
1976         test ".$cf_item2" != ".$cf_subdir" && DIRS_TO_MAKE="$DIRS_TO_MAKE $cf_subdir"
1977 done
1978 for cf_dir in $DIRS_TO_MAKE
1979 do
1980         test ! -d "$cf_dir" && mkdir "$cf_dir"
1981 done
1982 AC_SUBST(DIRS_TO_MAKE)
1983 ])dnl
1984 dnl ---------------------------------------------------------------------------
1985 dnl CF_DISABLE_ECHO version: 14 updated: 2021/09/04 06:35:04
1986 dnl ---------------
1987 dnl You can always use "make -n" to see the actual options, but it is hard to
1988 dnl pick out/analyze warning messages when the compile-line is long.
1989 dnl
1990 dnl Sets:
1991 dnl     ECHO_LT - symbol to control if libtool is verbose
1992 dnl     ECHO_LD - symbol to prefix "cc -o" lines
1993 dnl     RULE_CC - symbol to put before implicit "cc -c" lines (e.g., .c.o)
1994 dnl     SHOW_CC - symbol to put before explicit "cc -c" lines
1995 dnl     ECHO_CC - symbol to put before any "cc" line
1996 dnl
1997 AC_DEFUN([CF_DISABLE_ECHO],[
1998 AC_MSG_CHECKING(if you want to see long compiling messages)
1999 CF_ARG_DISABLE(echo,
2000         [  --disable-echo          do not display "compiling" commands],
2001         [
2002         ECHO_LT='--silent'
2003         ECHO_LD='@echo linking [$]@;'
2004         RULE_CC='@echo compiling [$]<'
2005         SHOW_CC='@echo compiling [$]@'
2006         ECHO_CC='@'
2007 ],[
2008         ECHO_LT=''
2009         ECHO_LD=''
2010         RULE_CC=''
2011         SHOW_CC=''
2012         ECHO_CC=''
2013 ])
2014 AC_MSG_RESULT($enableval)
2015 AC_SUBST(ECHO_LT)
2016 AC_SUBST(ECHO_LD)
2017 AC_SUBST(RULE_CC)
2018 AC_SUBST(SHOW_CC)
2019 AC_SUBST(ECHO_CC)
2020 ])dnl
2021 dnl ---------------------------------------------------------------------------
2022 dnl CF_DISABLE_GNAT_PROJECTS version: 1 updated: 2014/06/01 11:34:00
2023 dnl ------------------------
2024 AC_DEFUN([CF_DISABLE_GNAT_PROJECTS],[
2025 AC_MSG_CHECKING(if we want to use GNAT projects)
2026 CF_ARG_DISABLE(gnat-projects,
2027         [  --disable-gnat-projects test: disable GNAT projects even if usable],
2028         [enable_gnat_projects=no],
2029         [enable_gnat_projects=yes])
2030 AC_MSG_RESULT($enable_gnat_projects)
2031 ])dnl
2032 dnl ---------------------------------------------------------------------------
2033 dnl CF_DISABLE_LEAKS version: 9 updated: 2021/04/03 16:41:50
2034 dnl ----------------
2035 dnl Combine no-leak checks with the libraries or tools that are used for the
2036 dnl checks.
2037 AC_DEFUN([CF_DISABLE_LEAKS],[
2038
2039 AC_REQUIRE([CF_WITH_DMALLOC])
2040 AC_REQUIRE([CF_WITH_DBMALLOC])
2041 AC_REQUIRE([CF_WITH_VALGRIND])
2042
2043 AC_MSG_CHECKING(if you want to perform memory-leak testing)
2044 AC_ARG_ENABLE(leaks,
2045         [  --disable-leaks         test: free permanent memory, analyze leaks],
2046         [enable_leaks=$enableval],
2047         [enable_leaks=yes])
2048 dnl with_no_leaks is more readable...
2049 if test "x$enable_leaks" = xno; then with_no_leaks=yes; else with_no_leaks=no; fi
2050 AC_MSG_RESULT($with_no_leaks)
2051
2052 if test "$enable_leaks" = no ; then
2053         AC_DEFINE(NO_LEAKS,1,[Define to 1 if you want to perform memory-leak testing.])
2054         AC_DEFINE(YY_NO_LEAKS,1,[Define to 1 if you want to perform memory-leak testing.])
2055 fi
2056 ])dnl
2057 dnl ---------------------------------------------------------------------------
2058 dnl CF_DISABLE_LIBTOOL_VERSION version: 3 updated: 2015/04/17 21:13:04
2059 dnl --------------------------
2060 dnl Check if we should use the libtool 1.5 feature "-version-number" instead of
2061 dnl the older "-version-info" feature.  The newer feature allows us to use
2062 dnl version numbering on shared libraries which make them compatible with
2063 dnl various systems.
2064 AC_DEFUN([CF_DISABLE_LIBTOOL_VERSION],
2065 [
2066 AC_MSG_CHECKING(if libtool -version-number should be used)
2067 CF_ARG_DISABLE(libtool-version,
2068         [  --disable-libtool-version  enable to use libtool's incompatible naming scheme],
2069         [cf_libtool_version=no],
2070         [cf_libtool_version=yes])
2071 AC_MSG_RESULT($cf_libtool_version)
2072
2073 if test "$cf_libtool_version" = yes ; then
2074         LIBTOOL_VERSION="-version-number"
2075 else
2076         LIBTOOL_VERSION="-version-info"
2077         case "x$VERSION" in
2078         (x)
2079                 AC_MSG_WARN(VERSION was not set)
2080                 ;;
2081         (x*.*.*)
2082                 ABI_VERSION="$VERSION"
2083                 CF_VERBOSE(ABI_VERSION: $ABI_VERSION)
2084                 ;;
2085         (x*:*:*)
2086                 ABI_VERSION=`echo "$VERSION" | sed -e 's/:/./g'`
2087                 CF_VERBOSE(ABI_VERSION: $ABI_VERSION)
2088                 ;;
2089         (*)
2090                 AC_MSG_WARN(unexpected VERSION value: $VERSION)
2091                 ;;
2092         esac
2093 fi
2094
2095 AC_SUBST(ABI_VERSION)
2096 AC_SUBST(LIBTOOL_VERSION)
2097 ])dnl
2098 dnl ---------------------------------------------------------------------------
2099 dnl CF_DISABLE_RPATH_HACK version: 3 updated: 2021/01/05 20:14:44
2100 dnl ---------------------
2101 dnl The rpath-hack makes it simpler to build programs, particularly with the
2102 dnl *BSD ports which may have essential libraries in unusual places.  But it
2103 dnl can interfere with building an executable for the base system.  Use this
2104 dnl option in that case.
2105 AC_DEFUN([CF_DISABLE_RPATH_HACK],
2106 [
2107 AC_MSG_CHECKING(if rpath-hack should be disabled)
2108 CF_ARG_DISABLE(rpath-hack,
2109         [  --disable-rpath-hack    don't add rpath options for additional libraries],
2110         [enable_rpath_hack=no],
2111         [enable_rpath_hack=yes])
2112 dnl TODO - drop cf_disable_rpath_hack
2113 if test "x$enable_rpath_hack" = xno; then cf_disable_rpath_hack=yes; else cf_disable_rpath_hack=no; fi
2114 AC_MSG_RESULT($cf_disable_rpath_hack)
2115
2116 if test "$enable_rpath_hack" = yes ; then
2117         CF_RPATH_HACK
2118 fi
2119 ])
2120 dnl ---------------------------------------------------------------------------
2121 dnl CF_ENABLE_BROKEN_LINKER version: 2 updated: 2021/01/02 17:09:14
2122 dnl -----------------------
2123 dnl Some linkers cannot reference a data-only object.  Cygwin used to be one.
2124 dnl This usually follows CF_LINK_DATAONLY, but is not required in case we need
2125 dnl an unconditional feature.
2126 AC_DEFUN([CF_ENABLE_BROKEN_LINKER],[
2127
2128 AC_MSG_CHECKING(if you want broken-linker support code)
2129 AC_ARG_ENABLE(broken_linker,
2130         [  --enable-broken_linker  compile with broken-linker support code],
2131         [with_broken_linker=$enableval],
2132         [with_broken_linker=no])
2133 AC_MSG_RESULT($with_broken_linker)
2134
2135 : "${BROKEN_LINKER:=0}"
2136 if test "x$with_broken_linker" = xyes ; then
2137         AC_DEFINE(BROKEN_LINKER,1,[Define to 1 to work around linkers which cannot link data-only modules])
2138         BROKEN_LINKER=1
2139 fi
2140 AC_SUBST(BROKEN_LINKER)
2141 ])dnl
2142 dnl ---------------------------------------------------------------------------
2143 dnl CF_ENABLE_PC_FILES version: 16 updated: 2021/11/20 12:48:37
2144 dnl ------------------
2145 dnl This is the "--enable-pc-files" option, which is available if there is a
2146 dnl pkg-config configuration on the local machine.
2147 AC_DEFUN([CF_ENABLE_PC_FILES],[
2148 AC_REQUIRE([CF_PKG_CONFIG])
2149 AC_REQUIRE([CF_WITH_PKG_CONFIG_LIBDIR])
2150
2151 if test "x$PKG_CONFIG" != xnone
2152 then
2153         AC_MSG_CHECKING(if we should install .pc files for $PKG_CONFIG)
2154 else
2155         AC_MSG_CHECKING(if we should install .pc files)
2156 fi
2157
2158 AC_ARG_ENABLE(pc-files,
2159         [  --enable-pc-files       generate and install .pc files for pkg-config],
2160         [enable_pc_files=$enableval],
2161         [enable_pc_files=no])
2162 AC_MSG_RESULT($enable_pc_files)
2163
2164 if test "x$enable_pc_files" != xno
2165 then
2166         MAKE_PC_FILES=
2167         case "x$PKG_CONFIG_LIBDIR" in
2168         (xno|xnone|xyes|x)
2169                 AC_MSG_WARN(no PKG_CONFIG_LIBDIR was found)
2170                 ;;
2171         (*)
2172                 cf_pkg_config_libdir="$PKG_CONFIG_LIBDIR"
2173                 CF_PATH_SYNTAX(cf_pkg_config_libdir)
2174                 ;;
2175         esac
2176 else
2177         MAKE_PC_FILES="#"
2178 fi
2179 AC_SUBST(MAKE_PC_FILES)
2180 ])dnl
2181 dnl ---------------------------------------------------------------------------
2182 dnl CF_ENABLE_RPATH version: 2 updated: 2010/03/27 18:39:42
2183 dnl ---------------
2184 dnl Check if the rpath option should be used, setting cache variable
2185 dnl cf_cv_enable_rpath if so.
2186 AC_DEFUN([CF_ENABLE_RPATH],
2187 [
2188 AC_MSG_CHECKING(if rpath option should be used)
2189 AC_ARG_ENABLE(rpath,
2190 [  --enable-rpath          use rpath option when generating shared libraries],
2191 [cf_cv_enable_rpath=$enableval],
2192 [cf_cv_enable_rpath=no])
2193 AC_MSG_RESULT($cf_cv_enable_rpath)
2194 ])dnl
2195 dnl ---------------------------------------------------------------------------
2196 dnl CF_ENABLE_STRING_HACKS version: 6 updated: 2021/01/05 19:23:48
2197 dnl ----------------------
2198 dnl On a few platforms, the compiler and/or loader nags with untruthful
2199 dnl comments stating that "most" uses of strcat/strcpy/sprintf are incorrect,
2200 dnl and implying that most uses of the recommended alternatives are correct.
2201 dnl
2202 dnl Factually speaking, no one has actually counted the number of uses of these
2203 dnl functions versus the total of incorrect uses.  Samples of a few thousand
2204 dnl instances are meaningless compared to the hundreds of millions of lines of
2205 dnl existing C code.
2206 dnl
2207 dnl strlcat/strlcpy are (as of 2012) non-standard, and are available on some
2208 dnl platforms, in implementations of varying quality.  Likewise, snprintf is
2209 dnl standard - but evolved through phases, and older implementations are likely
2210 dnl to yield surprising results, as documented in manpages on various systems.
2211 AC_DEFUN([CF_ENABLE_STRING_HACKS],
2212 [
2213 AC_MSG_CHECKING(if you want to work around bogus compiler/loader warnings)
2214 AC_ARG_ENABLE(string-hacks,
2215         [  --enable-string-hacks   work around bogus compiler/loader warnings],
2216         [enable_string_hacks=$enableval],
2217         [enable_string_hacks=no])
2218 AC_MSG_RESULT($enable_string_hacks)
2219
2220 if test "x$enable_string_hacks" = "xyes"; then
2221         AC_DEFINE(USE_STRING_HACKS,1,[Define to 1 to work around bogus compiler/loader warnings])
2222         AC_MSG_WARN(enabling string-hacks to work around bogus compiler/loader warnings)
2223         AC_CHECK_FUNC(strlcat,[
2224                 AC_DEFINE(HAVE_STRLCAT,1,[Define to 1 if we have strlcat function])
2225                 ],[
2226                 AC_CHECK_LIB(bsd,strlcat,[
2227                         CF_ADD_LIB(bsd)
2228                         AC_CHECK_HEADERS(bsd/string.h)
2229                         AC_DEFINE(HAVE_STRLCAT,1,[Define to 1 if we have strlcat function])
2230                         ])
2231                 ])
2232         AC_CHECK_FUNCS( strlcpy snprintf )
2233 fi
2234 ])dnl
2235 dnl ---------------------------------------------------------------------------
2236 dnl CF_ENABLE_WARNINGS version: 9 updated: 2021/01/05 19:40:50
2237 dnl ------------------
2238 dnl Configure-option to enable gcc warnings
2239 dnl
2240 dnl $1 = extra options to add, if supported
2241 dnl $2 = option for checking attributes.  By default, this is done when
2242 dnl      warnings are enabled.  For other values:
2243 dnl      yes: always do this, e.g., to use in generated library-headers
2244 dnl      no: never do this
2245 AC_DEFUN([CF_ENABLE_WARNINGS],[
2246 if test "$GCC" = yes || test "$GXX" = yes
2247 then
2248 CF_FIX_WARNINGS(CFLAGS)
2249 CF_FIX_WARNINGS(CPPFLAGS)
2250 CF_FIX_WARNINGS(LDFLAGS)
2251 AC_MSG_CHECKING(if you want to turn on gcc warnings)
2252 CF_ARG_ENABLE(warnings,
2253         [  --enable-warnings       test: turn on gcc compiler warnings],
2254         [enable_warnings=yes],
2255         [enable_warnings=no])
2256 AC_MSG_RESULT($enable_warnings)
2257 if test "$enable_warnings" = "yes"
2258 then
2259         ifelse($2,,[CF_GCC_ATTRIBUTES])
2260         CF_GCC_WARNINGS($1)
2261 fi
2262 ifelse($2,yes,[CF_GCC_ATTRIBUTES])
2263 fi
2264 ])dnl
2265 dnl ---------------------------------------------------------------------------
2266 dnl CF_ERRNO version: 5 updated: 1997/11/30 12:44:39
2267 dnl --------
2268 dnl Check if 'errno' is declared in <errno.h>
2269 AC_DEFUN([CF_ERRNO],
2270 [
2271 CF_CHECK_ERRNO(errno)
2272 ])dnl
2273 dnl ---------------------------------------------------------------------------
2274 dnl CF_ETIP_DEFINES version: 6 updated: 2021/01/02 17:09:14
2275 dnl ---------------
2276 dnl Test for conflicting definitions of exception in gcc 2.8.0, etc., between
2277 dnl math.h and builtin.h, only for ncurses
2278 AC_DEFUN([CF_ETIP_DEFINES],
2279 [
2280 AC_MSG_CHECKING(for special defines needed for etip.h)
2281 cf_save_CXXFLAGS="$CXXFLAGS"
2282 cf_result="none"
2283
2284 # etip.h includes ncurses.h which includes ncurses_dll.h
2285 # But ncurses_dll.h is generated - fix here.
2286 test -d include || mkdir include
2287 test -f include/ncurses_dll.h || sed -e 's/@NCURSES_WRAP_PREFIX@/'$NCURSES_WRAP_PREFIX'/g' "${srcdir}/include/ncurses_dll.h.in" >include/ncurses_dll.h
2288
2289 for cf_math in "" MATH_H
2290 do
2291 for cf_excp in "" MATH_EXCEPTION
2292 do
2293         CXXFLAGS="$cf_save_CXXFLAGS -I${srcdir}/c++ -I${srcdir}/menu -Iinclude -I${srcdir}/include"
2294         test -n "$cf_math" && CXXFLAGS="$CXXFLAGS -DETIP_NEEDS_${cf_math}"
2295         test -n "$cf_excp" && CXXFLAGS="$CXXFLAGS -DETIP_NEEDS_${cf_excp}"
2296 AC_TRY_COMPILE([
2297 #include <etip.h.in>
2298 ],[],[
2299         test -n "$cf_math" && AC_DEFINE_UNQUOTED(ETIP_NEEDS_${cf_math})
2300         test -n "$cf_excp" && AC_DEFINE_UNQUOTED(ETIP_NEEDS_${cf_excp})
2301         cf_result="$cf_math $cf_excp"
2302         break 2
2303 ],[])
2304 done
2305 done
2306 AC_MSG_RESULT($cf_result)
2307 CXXFLAGS="$cf_save_CXXFLAGS"
2308 ])
2309 dnl ---------------------------------------------------------------------------
2310 dnl CF_FIND_LINKAGE version: 22 updated: 2020/12/31 20:19:42
2311 dnl ---------------
2312 dnl Find a library (specifically the linkage used in the code fragment),
2313 dnl searching for it if it is not already in the library path.
2314 dnl See also CF_ADD_SEARCHPATH.
2315 dnl
2316 dnl Parameters (4-on are optional):
2317 dnl     $1 = headers for library entrypoint
2318 dnl     $2 = code fragment for library entrypoint
2319 dnl     $3 = the library name without the "-l" option or ".so" suffix.
2320 dnl     $4 = action to perform if successful (default: update CPPFLAGS, etc)
2321 dnl     $5 = action to perform if not successful
2322 dnl     $6 = module name, if not the same as the library name
2323 dnl     $7 = extra libraries
2324 dnl
2325 dnl Sets these variables:
2326 dnl     $cf_cv_find_linkage_$3 - yes/no according to whether linkage is found
2327 dnl     $cf_cv_header_path_$3 - include-directory if needed
2328 dnl     $cf_cv_library_path_$3 - library-directory if needed
2329 dnl     $cf_cv_library_file_$3 - library-file if needed, e.g., -l$3
2330 AC_DEFUN([CF_FIND_LINKAGE],[
2331
2332 # If the linkage is not already in the $CPPFLAGS/$LDFLAGS configuration, these
2333 # will be set on completion of the AC_TRY_LINK below.
2334 cf_cv_header_path_$3=
2335 cf_cv_library_path_$3=
2336
2337 CF_MSG_LOG([Starting [FIND_LINKAGE]($3,$6)])
2338
2339 cf_save_LIBS="$LIBS"
2340
2341 AC_TRY_LINK([$1],[$2],[
2342         cf_cv_find_linkage_$3=yes
2343         cf_cv_header_path_$3=/usr/include
2344         cf_cv_library_path_$3=/usr/lib
2345 ],[
2346
2347 LIBS="-l$3 $7 $cf_save_LIBS"
2348
2349 AC_TRY_LINK([$1],[$2],[
2350         cf_cv_find_linkage_$3=yes
2351         cf_cv_header_path_$3=/usr/include
2352         cf_cv_library_path_$3=/usr/lib
2353         cf_cv_library_file_$3="-l$3"
2354 ],[
2355         cf_cv_find_linkage_$3=no
2356         LIBS="$cf_save_LIBS"
2357
2358         CF_VERBOSE(find linkage for $3 library)
2359         CF_MSG_LOG([Searching for headers in [FIND_LINKAGE]($3,$6)])
2360
2361         cf_save_CPPFLAGS="$CPPFLAGS"
2362         cf_test_CPPFLAGS="$CPPFLAGS"
2363
2364         CF_HEADER_PATH(cf_search,ifelse([$6],,[$3],[$6]))
2365         for cf_cv_header_path_$3 in $cf_search
2366         do
2367                 if test -d "$cf_cv_header_path_$3" ; then
2368                         CF_VERBOSE(... testing $cf_cv_header_path_$3)
2369                         CPPFLAGS="$cf_save_CPPFLAGS"
2370                         CF_APPEND_TEXT(CPPFLAGS,-I$cf_cv_header_path_$3)
2371                         AC_TRY_COMPILE([$1],[$2],[
2372                                 CF_VERBOSE(... found $3 headers in $cf_cv_header_path_$3)
2373                                 cf_cv_find_linkage_$3=maybe
2374                                 cf_test_CPPFLAGS="$CPPFLAGS"
2375                                 break],[
2376                                 CPPFLAGS="$cf_save_CPPFLAGS"
2377                                 ])
2378                 fi
2379         done
2380
2381         if test "$cf_cv_find_linkage_$3" = maybe ; then
2382
2383                 CF_MSG_LOG([Searching for $3 library in [FIND_LINKAGE]($3,$6)])
2384
2385                 cf_save_LIBS="$LIBS"
2386                 cf_save_LDFLAGS="$LDFLAGS"
2387
2388                 ifelse([$6],,,[
2389                 CPPFLAGS="$cf_test_CPPFLAGS"
2390                 LIBS="-l$3 $7 $cf_save_LIBS"
2391                 AC_TRY_LINK([$1],[$2],[
2392                         CF_VERBOSE(... found $3 library in system)
2393                         cf_cv_find_linkage_$3=yes])
2394                         CPPFLAGS="$cf_save_CPPFLAGS"
2395                         LIBS="$cf_save_LIBS"
2396                         ])
2397
2398                 if test "$cf_cv_find_linkage_$3" != yes ; then
2399                         CF_LIBRARY_PATH(cf_search,$3)
2400                         for cf_cv_library_path_$3 in $cf_search
2401                         do
2402                                 if test -d "$cf_cv_library_path_$3" ; then
2403                                         CF_VERBOSE(... testing $cf_cv_library_path_$3)
2404                                         CPPFLAGS="$cf_test_CPPFLAGS"
2405                                         LIBS="-l$3 $7 $cf_save_LIBS"
2406                                         LDFLAGS="$cf_save_LDFLAGS -L$cf_cv_library_path_$3"
2407                                         AC_TRY_LINK([$1],[$2],[
2408                                         CF_VERBOSE(... found $3 library in $cf_cv_library_path_$3)
2409                                         cf_cv_find_linkage_$3=yes
2410                                         cf_cv_library_file_$3="-l$3"
2411                                         break],[
2412                                         CPPFLAGS="$cf_save_CPPFLAGS"
2413                                         LIBS="$cf_save_LIBS"
2414                                         LDFLAGS="$cf_save_LDFLAGS"
2415                                         ])
2416                                 fi
2417                         done
2418                         CPPFLAGS="$cf_save_CPPFLAGS"
2419                         LDFLAGS="$cf_save_LDFLAGS"
2420                 fi
2421
2422         else
2423                 cf_cv_find_linkage_$3=no
2424         fi
2425         ],$7)
2426 ])
2427
2428 LIBS="$cf_save_LIBS"
2429
2430 if test "$cf_cv_find_linkage_$3" = yes ; then
2431 ifelse([$4],,[
2432         CF_ADD_INCDIR($cf_cv_header_path_$3)
2433         CF_ADD_LIBDIR($cf_cv_library_path_$3)
2434         CF_ADD_LIB($3)
2435 ],[$4])
2436 else
2437 ifelse([$5],,AC_MSG_WARN(Cannot find $3 library),[$5])
2438 fi
2439 ])dnl
2440 dnl ---------------------------------------------------------------------------
2441 dnl CF_FIND_SUB_INCDIR version: 3 updated: 2021/01/01 13:31:04
2442 dnl ------------------
2443 dnl Find an include-directory with the given leaf-name.  This is useful for
2444 dnl example with FreeBSD ports, which use this convention to distinguish
2445 dnl different versions of the same port.
2446 AC_DEFUN([CF_FIND_SUB_INCDIR],[
2447         CF_SUBDIR_PATH(cf_search,$1,include)
2448         for cf_item in $cf_search
2449         do
2450                 case "$cf_item" in
2451                 (*/$1)
2452                         CF_ADD_INCDIR($cf_item)
2453                         ;;
2454                 esac
2455         done
2456 ])dnl
2457 dnl ---------------------------------------------------------------------------
2458 dnl CF_FIND_SUB_LIBDIR version: 3 updated: 2021/01/01 13:31:04
2459 dnl ------------------
2460 dnl Find a library-directory with the given leaf-name.  This is useful for
2461 dnl example with FreeBSD ports, which use this convention to distinguish
2462 dnl different versions of the same port.
2463 AC_DEFUN([CF_FIND_SUB_LIBDIR],[
2464         CF_SUBDIR_PATH(cf_search,$1,lib)
2465         for cf_item in $cf_search
2466         do
2467                 case "$cf_item" in
2468                 (*/$1)
2469                         CF_ADD_LIBDIR($cf_item)
2470                         ;;
2471                 esac
2472         done
2473 ])dnl
2474 dnl ---------------------------------------------------------------------------
2475 dnl CF_FIXUP_ADAFLAGS version: 2 updated: 2015/04/17 21:13:04
2476 dnl -----------------
2477 dnl make ADAFLAGS consistent with CFLAGS
2478 AC_DEFUN([CF_FIXUP_ADAFLAGS],[
2479         AC_MSG_CHECKING(optimization options for ADAFLAGS)
2480         case "$CFLAGS" in
2481         (*-g*)
2482                 CF_ADD_ADAFLAGS(-g)
2483                 ;;
2484         esac
2485         case "$CFLAGS" in
2486         (*-O*)
2487                 cf_O_flag=`echo "$CFLAGS" |sed -e 's/^.*-O/-O/' -e 's/[[        ]].*//'`
2488                 CF_ADD_ADAFLAGS($cf_O_flag)
2489                 ;;
2490         esac
2491         AC_MSG_RESULT($ADAFLAGS)
2492 ])dnl
2493 dnl ---------------------------------------------------------------------------
2494 dnl CF_FIX_WARNINGS version: 4 updated: 2021/12/16 18:22:31
2495 dnl ---------------
2496 dnl Warning flags do not belong in CFLAGS, CPPFLAGS, etc.  Any of gcc's
2497 dnl "-Werror" flags can interfere with configure-checks.  Those go into
2498 dnl EXTRA_CFLAGS.
2499 dnl
2500 dnl $1 = variable name to repair
2501 define([CF_FIX_WARNINGS],[
2502 if test "$GCC" = yes || test "$GXX" = yes
2503 then
2504         case [$]$1 in
2505         (*-Werror=*)
2506                 cf_temp_flags=
2507                 for cf_temp_scan in [$]$1
2508                 do
2509                         case "x$cf_temp_scan" in
2510                         (x-Werror=format*)
2511                                 CF_APPEND_TEXT(cf_temp_flags,$cf_temp_scan)
2512                                 ;;
2513                         (x-Werror=*)
2514                                 CF_APPEND_TEXT(EXTRA_CFLAGS,$cf_temp_scan)
2515                                 ;;
2516                         (*)
2517                                 CF_APPEND_TEXT(cf_temp_flags,$cf_temp_scan)
2518                                 ;;
2519                         esac
2520                 done
2521                 if test "x[$]$1" != "x$cf_temp_flags"
2522                 then
2523                         CF_VERBOSE(repairing $1: [$]$1)
2524                         $1="$cf_temp_flags"
2525                         CF_VERBOSE(... fixed [$]$1)
2526                         CF_VERBOSE(... extra $EXTRA_CFLAGS)
2527                 fi
2528                 ;;
2529         esac
2530 fi
2531 AC_SUBST(EXTRA_CFLAGS)
2532 ])dnl
2533 dnl ---------------------------------------------------------------------------
2534 dnl CF_FOPEN_BIN_R version: 3 updated: 2023/01/05 18:05:46
2535 dnl --------------
2536 dnl Check if fopen works when the "b" (binary) flag is added to the mode
2537 dnl parameter.  POSIX ignores the "b", which c89 specified.  Some very old
2538 dnl systems do not accept it.
2539 AC_DEFUN([CF_FOPEN_BIN_R],[
2540 AC_CACHE_CHECK(if fopen accepts explicit binary mode,cf_cv_fopen_bin_r,[
2541         AC_TRY_RUN([
2542 $ac_includes_default
2543
2544 int main(void)
2545 {
2546         FILE *fp = fopen("conftest.tmp", "wb");
2547         int rc = 0;
2548         if (fp != 0) {
2549                 int p, q;
2550                 for (p = 0; p < 256; ++p) {
2551                         fputc(p, fp);
2552                 }
2553                 fclose(fp);
2554                 fp = fopen("conftest.tmp", "rb");
2555                 if (fp != 0) {
2556                         for (p = 0; p < 256; ++p) {
2557                                 q = fgetc(fp);
2558                                 if (q != p) {
2559                                         rc = 1;
2560                                         break;
2561                                 }
2562                         }
2563                 } else {
2564                         rc = 1;
2565                 }
2566         } else {
2567                 rc = 1;
2568         }
2569         ${cf_cv_main_return:-return} (rc);
2570 }
2571 ],
2572                 [cf_cv_fopen_bin_r=yes],
2573                 [cf_cv_fopen_bin_r=no],
2574                 [cf_cv_fopen_bin_r=unknown])
2575 ])
2576 test "x$cf_cv_fopen_bin_r" != xno && AC_DEFINE(USE_FOPEN_BIN_R,1,[Define to 1 if fopen accepts explicit binary mode])
2577 ])dnl
2578 dnl ---------------------------------------------------------------------------
2579 dnl CF_FORGET_TOOL version: 1 updated: 2013/04/06 18:03:09
2580 dnl --------------
2581 dnl Forget that we saw the given tool.
2582 AC_DEFUN([CF_FORGET_TOOL],[
2583 unset ac_cv_prog_ac_ct_$1
2584 unset ac_ct_$1
2585 unset $1
2586 ])dnl
2587 dnl ---------------------------------------------------------------------------
2588 dnl CF_FUNC_DLSYM version: 4 updated: 2015/09/12 14:46:44
2589 dnl -------------
2590 dnl Test for dlsym() and related functions, as well as libdl.
2591 dnl
2592 dnl Sets
2593 dnl     $cf_have_dlsym
2594 dnl     $cf_have_libdl
2595 AC_DEFUN([CF_FUNC_DLSYM],[
2596 cf_have_dlsym=no
2597 AC_CHECK_FUNC(dlsym,cf_have_dlsym=yes,[
2598
2599 cf_have_libdl=no
2600 AC_CHECK_LIB(dl,dlsym,[
2601         cf_have_dlsym=yes
2602         cf_have_libdl=yes])])
2603
2604 if test "$cf_have_dlsym" = yes ; then
2605         test "$cf_have_libdl" = yes && { CF_ADD_LIB(dl) }
2606
2607         AC_MSG_CHECKING(whether able to link to dl*() functions)
2608         AC_TRY_LINK([#include <dlfcn.h>],[
2609                 void *obj;
2610                 if ((obj = dlopen("filename", 0)) != 0) {
2611                         if (dlsym(obj, "symbolname") == 0) {
2612                         dlclose(obj);
2613                         }
2614                 }],[
2615                 AC_DEFINE(HAVE_LIBDL,1,[Define to 1 if we have dl library])],[
2616                 AC_MSG_ERROR(Cannot link test program for libdl)])
2617         AC_MSG_RESULT(ok)
2618 else
2619         AC_MSG_ERROR(Cannot find dlsym function)
2620 fi
2621 ])
2622 dnl ---------------------------------------------------------------------------
2623 dnl CF_FUNC_GETTIME version: 2 updated: 2023/02/25 08:45:56
2624 dnl ---------------
2625 dnl Check for gettimeofday or clock_gettime.  In 2023, the former is still more
2626 dnl widely supported, but "deprecated" (2008), so we will use the latter if it
2627 dnl is available, to reduce compiler warnings.
2628 AC_DEFUN([CF_FUNC_GETTIME],[
2629 AC_CACHE_CHECK(for clock_gettime,cf_cv_func_clock_gettime,[
2630                 AC_TRY_LINK([#include <time.h>],
2631                 [struct timespec ts;
2632                 int rc = clock_gettime(CLOCK_REALTIME, &ts); (void) rc; (void)ts],
2633                 [cf_cv_func_clock_gettime=yes],
2634                 [cf_cv_func_clock_gettime=no])
2635 ])
2636
2637 if test "$cf_cv_func_clock_gettime" = yes
2638 then
2639         AC_DEFINE(HAVE_CLOCK_GETTIME,1,[Define to 1 if we have clock_gettime function])
2640 else
2641 AC_CHECK_FUNC(gettimeofday,
2642         AC_DEFINE(HAVE_GETTIMEOFDAY,1,[Define to 1 if we have gettimeofday function]),[
2643
2644 AC_CHECK_LIB(bsd, gettimeofday,
2645         AC_DEFINE(HAVE_GETTIMEOFDAY,1,[Define to 1 if we have gettimeofday function])
2646         CF_ADD_LIB(bsd))])dnl CLIX: bzero, select, gettimeofday
2647 fi
2648 ])dnl
2649 dnl ---------------------------------------------------------------------------
2650 dnl CF_FUNC_GETTTYNAM version: 2 updated: 2023/01/05 18:06:28
2651 dnl -----------------
2652 dnl Check if the 4.3BSD function getttyname exists, as well as if <ttyent.h>
2653 dnl defines the _PATH_TTYS symbol.  If the corresponding file exists, but the
2654 dnl other checks fail, just define HAVE_PATH_TTYS.
2655 AC_DEFUN([CF_FUNC_GETTTYNAM],[
2656 AC_CACHE_CHECK(if _PATH_TTYS is defined in ttyent.h,cf_cv_PATH_TTYS,[
2657 AC_TRY_COMPILE([
2658 #include <stdio.h>
2659 #include <ttyent.h>],[
2660 FILE *fp = fopen(_PATH_TTYS, "r"); (void)fp],
2661         [cf_cv_PATH_TTYS=yes],
2662         [cf_cv_PATH_TTYS=no])])
2663
2664 if test $cf_cv_PATH_TTYS = no
2665 then
2666         for cf_ttys in /etc/ttytype /etc/ttys
2667         do
2668                 if test -f $cf_ttys
2669                 then
2670                         cf_cv_PATH_TTYS=maybe
2671                         AC_DEFINE(_PATH_TTYS,$cf_ttys,[define to pathname of file containing mapping from tty name to terminal type])
2672                         break
2673                 fi
2674         done
2675 fi
2676
2677 if test $cf_cv_PATH_TTYS != no
2678 then
2679         AC_CACHE_CHECK(if _PATH_TTYS file exists,cf_cv_have_PATH_TTYS,[
2680                 AC_TRY_RUN([
2681 $ac_includes_default
2682
2683 #include <ttyent.h>
2684
2685 int main(void) {
2686         FILE *fp = fopen(_PATH_TTYS, "r");
2687         ${cf_cv_main_return:-return} (fp == 0);
2688 }],
2689                         [cf_cv_have_PATH_TTYS=yes],
2690                         [cf_cv_have_PATH_TTYS=no],
2691                         [cf_cv_have_PATH_TTYS=unknown])])
2692         test "$cf_cv_have_PATH_TTYS" = no && cf_cv_PATH_TTYS=no
2693 fi
2694
2695 if test $cf_cv_PATH_TTYS != no
2696 then
2697         AC_DEFINE(HAVE_PATH_TTYS,1,[define to 1 if system can map tty name to terminal type])
2698         AC_CACHE_CHECK(for getttynam,cf_cv_func_getttynam,[
2699                 AC_TRY_LINK([#include <ttyent.h>],
2700                 [struct ttyent *fp = getttynam("/dev/tty"); (void)fp],
2701                 [cf_cv_func_getttynam=yes],
2702                 [cf_cv_func_getttynam=no])])
2703         test "$cf_cv_func_getttynam" = yes && AC_DEFINE(HAVE_GETTTYNAM)
2704 fi
2705 ])dnl
2706 dnl ---------------------------------------------------------------------------
2707 dnl CF_FUNC_MEMMOVE version: 10 updated: 2023/01/05 18:51:28
2708 dnl ---------------
2709 dnl Check for memmove, or a bcopy that can handle overlapping copy.  If neither
2710 dnl is found, add our own version of memmove to the list of objects.
2711 AC_DEFUN([CF_FUNC_MEMMOVE],
2712 [
2713 AC_CHECK_FUNC(memmove,,[
2714 AC_CHECK_FUNC(bcopy,[
2715         AC_CACHE_CHECK(if bcopy does overlapping moves,cf_cv_good_bcopy,[
2716                 AC_TRY_RUN([
2717 $ac_includes_default
2718
2719 int main(void) {
2720         static char data[] = "abcdefghijklmnopqrstuwwxyz";
2721         char temp[40];
2722         bcopy(data, temp, sizeof(data));
2723         bcopy(temp+10, temp, 15);
2724         bcopy(temp+5, temp+15, 10);
2725         ${cf_cv_main_return:-return} (strcmp(temp, "klmnopqrstuwwxypqrstuwwxyz"));
2726 }
2727                 ],
2728                 [cf_cv_good_bcopy=yes],
2729                 [cf_cv_good_bcopy=no],
2730                 [cf_cv_good_bcopy=unknown])
2731                 ])
2732         ],[cf_cv_good_bcopy=no])
2733         if test "$cf_cv_good_bcopy" = yes ; then
2734                 AC_DEFINE(USE_OK_BCOPY,1,[Define to 1 to use bcopy when memmove is unavailable])
2735         else
2736                 AC_DEFINE(USE_MY_MEMMOVE,1,[Define to 1 to use replacement function when memmove is unavailable])
2737         fi
2738 ])])dnl
2739 dnl ---------------------------------------------------------------------------
2740 dnl CF_FUNC_NANOSLEEP version: 6 updated: 2023/01/05 18:51:33
2741 dnl -----------------
2742 dnl Check for existence of workable nanosleep() function.  Some systems, e.g.,
2743 dnl AIX 4.x, provide a non-working version.
2744 AC_DEFUN([CF_FUNC_NANOSLEEP],[
2745 AC_CACHE_CHECK(if nanosleep really works,cf_cv_func_nanosleep,[
2746 AC_TRY_RUN([
2747 $ac_includes_default
2748
2749 #include <errno.h>
2750 #include <time.h>
2751
2752 #ifdef HAVE_SYS_TIME_H
2753 #include <sys/time.h>
2754 #endif
2755
2756 int main(void) {
2757         struct timespec ts1, ts2;
2758         int code;
2759         ts1.tv_sec  = 0;
2760         ts1.tv_nsec = 750000000;
2761         ts2.tv_sec  = 0;
2762         ts2.tv_nsec = 0;
2763         errno = 0;
2764         code = nanosleep(&ts1, &ts2); /* on failure errno is ENOSYS. */
2765         ${cf_cv_main_return:-return}(code != 0);
2766 }
2767 ],
2768         [cf_cv_func_nanosleep=yes],
2769         [cf_cv_func_nanosleep=no],
2770         [cf_cv_func_nanosleep=unknown])])
2771
2772 test "$cf_cv_func_nanosleep" = "yes" && AC_DEFINE(HAVE_NANOSLEEP,1,[Define to 1 if we have nanosleep()])
2773 ])
2774 dnl ---------------------------------------------------------------------------
2775 dnl CF_FUNC_OPENPTY version: 6 updated: 2021/01/01 13:31:04
2776 dnl ---------------
2777 dnl Check for openpty() function, along with <pty.h> header.  It may need the
2778 dnl "util" library as well.
2779 AC_DEFUN([CF_FUNC_OPENPTY],
2780 [
2781 AC_CHECK_LIB(util,openpty,cf_cv_lib_util=yes,cf_cv_lib_util=no)
2782 AC_CACHE_CHECK(for openpty header,cf_cv_func_openpty,[
2783         cf_save_LIBS="$LIBS"
2784         test "$cf_cv_lib_util" = yes && { CF_ADD_LIB(util) }
2785         for cf_header in pty.h libutil.h util.h
2786         do
2787         AC_TRY_LINK([
2788 #include <$cf_header>
2789 ],[
2790         int x = openpty((int *)0, (int *)0, (char *)0,
2791                                    (struct termios *)0, (struct winsize *)0);
2792 ],[
2793                 cf_cv_func_openpty=$cf_header
2794                 break
2795 ],[
2796                 cf_cv_func_openpty=no
2797 ])
2798         done
2799         LIBS="$cf_save_LIBS"
2800 ])
2801 ])dnl
2802 dnl ---------------------------------------------------------------------------
2803 dnl CF_FUNC_POLL version: 11 updated: 2023/01/05 18:51:40
2804 dnl ------------
2805 dnl See if the poll function really works.  Some platforms have poll(), but
2806 dnl it does not work for terminals or files.
2807 AC_DEFUN([CF_FUNC_POLL],[
2808 tty >/dev/null 2>&1 || { AC_CHECK_FUNCS(posix_openpt) }
2809 AC_CACHE_CHECK(if poll really works,cf_cv_working_poll,[
2810 AC_TRY_RUN([
2811 $ac_includes_default
2812
2813 #include <fcntl.h>
2814
2815 #ifdef HAVE_POLL_H
2816 #include <poll.h>
2817 #else
2818 #include <sys/poll.h>
2819 #endif
2820
2821 int main(void) {
2822         struct pollfd myfds;
2823         int ret;
2824
2825         /* check for Darwin bug with respect to "devices" */
2826         myfds.fd = open("/dev/null", 1);        /* O_WRONLY */
2827         if (myfds.fd < 0)
2828                 myfds.fd = 0;
2829         myfds.events = POLLIN;
2830         myfds.revents = 0;
2831
2832         ret = poll(&myfds, 1, 100);
2833
2834         if (ret < 0 || (myfds.revents & POLLNVAL)) {
2835                 ret = -1;
2836         } else {
2837                 int fd = 0;
2838                 if (!isatty(fd)) {
2839                         fd = open("/dev/tty", 2);       /* O_RDWR */
2840                 }
2841 #ifdef HAVE_POSIX_OPENPT
2842                 if (fd < 0) {
2843                         fd = posix_openpt(O_RDWR);
2844                 }
2845 #endif
2846
2847                 if (fd >= 0) {
2848                         /* also check with standard input */
2849                         myfds.fd = fd;
2850                         myfds.events = POLLIN;
2851                         myfds.revents = 0;
2852                         ret = poll(&myfds, 1, 100);
2853                 } else {
2854                         ret = -1;
2855                 }
2856         }
2857         ${cf_cv_main_return:-return}(ret < 0);
2858 }],
2859         [cf_cv_working_poll=yes],
2860         [cf_cv_working_poll=no],
2861         [cf_cv_working_poll=unknown])])
2862 test "$cf_cv_working_poll" = "yes" && AC_DEFINE(HAVE_WORKING_POLL,1,[Define to 1 if the poll function seems to work])
2863 ])dnl
2864 dnl ---------------------------------------------------------------------------
2865 dnl CF_FUNC_TERMIOS version: 3 updated: 2012/10/06 17:56:13
2866 dnl ---------------
2867 dnl Some old/broken variations define tcgetattr() only as a macro in
2868 dnl termio(s).h
2869 AC_DEFUN([CF_FUNC_TERMIOS],[
2870 AC_REQUIRE([CF_STRUCT_TERMIOS])
2871 AC_CACHE_CHECK(for tcgetattr, cf_cv_have_tcgetattr,[
2872 AC_TRY_LINK([
2873 #include <sys/types.h>
2874 #ifdef HAVE_UNISTD_H
2875 #include <unistd.h>
2876 #endif
2877 #ifdef HAVE_TERMIOS_H
2878 #include <termios.h>
2879 #define TTY struct termios
2880 #else
2881 #ifdef HAVE_TERMIO_H
2882 #include <termio.h>
2883 #define TTY struct termio
2884 #endif
2885 #endif
2886 ],[
2887 TTY foo;
2888 tcgetattr(1, &foo);],
2889 [cf_cv_have_tcgetattr=yes],
2890 [cf_cv_have_tcgetattr=no])])
2891 test "$cf_cv_have_tcgetattr" = yes && AC_DEFINE(HAVE_TCGETATTR,1,[Define to 1 if we have tcgetattr])
2892 ])dnl
2893 dnl ---------------------------------------------------------------------------
2894 dnl CF_FUNC_VSSCANF version: 7 updated: 2021/01/01 13:31:04
2895 dnl ---------------
2896 dnl Check for vsscanf() function, which is in c9x but generally not in earlier
2897 dnl versions of C.  It is in the GNU C library, and can often be simulated by
2898 dnl other functions.
2899 AC_DEFUN([CF_FUNC_VSSCANF],
2900 [
2901 AC_CACHE_CHECK(for vsscanf function or workaround,cf_cv_func_vsscanf,[
2902 AC_TRY_LINK([
2903 #include <stdarg.h>
2904 #include <stdio.h>],[
2905         va_list ap;
2906         vsscanf("from", "%d", ap)],[cf_cv_func_vsscanf=vsscanf],[
2907 AC_TRY_LINK([
2908 #include <stdarg.h>
2909 #include <stdio.h>],[
2910         FILE strbuf;
2911         char *str = "from";
2912
2913         strbuf._flag = _IOREAD;
2914         strbuf._ptr = strbuf._base = (unsigned char *) str;
2915         strbuf._cnt = strlen(str);
2916         strbuf._file = _NFILE;
2917         return (vfscanf(&strbuf, "%d", ap))],[cf_cv_func_vsscanf=vfscanf],[
2918 AC_TRY_LINK([
2919 #include <stdarg.h>
2920 #include <stdio.h>],[
2921         FILE strbuf;
2922         char *str = "from";
2923
2924         strbuf._flag = _IOREAD;
2925         strbuf._ptr = strbuf._base = (unsigned char *) str;
2926         strbuf._cnt = strlen(str);
2927         strbuf._file = _NFILE;
2928         return (_doscan(&strbuf, "%d", ap))],[cf_cv_func_vsscanf=_doscan],[
2929 cf_cv_func_vsscanf=no])])])])
2930
2931 case "$cf_cv_func_vsscanf" in
2932 (vsscanf) AC_DEFINE(HAVE_VSSCANF,1,[Define to 1 if we have vsscanf]);;
2933 (vfscanf) AC_DEFINE(HAVE_VFSCANF,1,[Define to 1 if we have vfscanf]);;
2934 (_doscan) AC_DEFINE(HAVE__DOSCAN,1,[Define to 1 if we have _doscan]);;
2935 esac
2936
2937 ])dnl
2938 dnl ---------------------------------------------------------------------------
2939 dnl CF_GCC_ATTRIBUTES version: 24 updated: 2021/03/20 12:00:25
2940 dnl -----------------
2941 dnl Test for availability of useful gcc __attribute__ directives to quiet
2942 dnl compiler warnings.  Though useful, not all are supported -- and contrary
2943 dnl to documentation, unrecognized directives cause older compilers to barf.
2944 AC_DEFUN([CF_GCC_ATTRIBUTES],
2945 [AC_REQUIRE([AC_PROG_FGREP])dnl
2946 AC_REQUIRE([CF_C11_NORETURN])dnl
2947
2948 if test "$GCC" = yes || test "$GXX" = yes
2949 then
2950 cat > conftest.i <<EOF
2951 #ifndef GCC_PRINTF
2952 #define GCC_PRINTF 0
2953 #endif
2954 #ifndef GCC_SCANF
2955 #define GCC_SCANF 0
2956 #endif
2957 #ifndef GCC_NORETURN
2958 #define GCC_NORETURN /* nothing */
2959 #endif
2960 #ifndef GCC_UNUSED
2961 #define GCC_UNUSED /* nothing */
2962 #endif
2963 EOF
2964 if test "$GCC" = yes
2965 then
2966         AC_CHECKING([for $CC __attribute__ directives])
2967 cat > "conftest.$ac_ext" <<EOF
2968 #line __oline__ "${as_me:-configure}"
2969 #include <stdio.h>
2970 #include "confdefs.h"
2971 #include "conftest.h"
2972 #include "conftest.i"
2973 #if     GCC_PRINTF
2974 #define GCC_PRINTFLIKE(fmt,var) __attribute__((format(printf,fmt,var)))
2975 #else
2976 #define GCC_PRINTFLIKE(fmt,var) /*nothing*/
2977 #endif
2978 #if     GCC_SCANF
2979 #define GCC_SCANFLIKE(fmt,var)  __attribute__((format(scanf,fmt,var)))
2980 #else
2981 #define GCC_SCANFLIKE(fmt,var)  /*nothing*/
2982 #endif
2983 extern void wow(char *,...) GCC_SCANFLIKE(1,2);
2984 extern GCC_NORETURN void oops(char *,...) GCC_PRINTFLIKE(1,2);
2985 extern GCC_NORETURN void foo(void);
2986 int main(int argc GCC_UNUSED, char *argv[[]] GCC_UNUSED) { (void)argc; (void)argv; return 0; }
2987 EOF
2988         cf_printf_attribute=no
2989         cf_scanf_attribute=no
2990         for cf_attribute in scanf printf unused noreturn
2991         do
2992                 CF_UPPER(cf_ATTRIBUTE,$cf_attribute)
2993                 cf_directive="__attribute__(($cf_attribute))"
2994                 echo "checking for $CC $cf_directive" 1>&AC_FD_CC
2995
2996                 case "$cf_attribute" in
2997                 (printf)
2998                         cf_printf_attribute=yes
2999                         cat >conftest.h <<EOF
3000 #define GCC_$cf_ATTRIBUTE 1
3001 EOF
3002                         ;;
3003                 (scanf)
3004                         cf_scanf_attribute=yes
3005                         cat >conftest.h <<EOF
3006 #define GCC_$cf_ATTRIBUTE 1
3007 EOF
3008                         ;;
3009                 (*)
3010                         cat >conftest.h <<EOF
3011 #define GCC_$cf_ATTRIBUTE $cf_directive
3012 EOF
3013                         ;;
3014                 esac
3015
3016                 if AC_TRY_EVAL(ac_compile); then
3017                         test -n "$verbose" && AC_MSG_RESULT(... $cf_attribute)
3018                         cat conftest.h >>confdefs.h
3019                         case "$cf_attribute" in
3020                         (noreturn)
3021                                 AC_DEFINE_UNQUOTED(GCC_NORETURN,$cf_directive,[Define to noreturn-attribute for gcc])
3022                                 ;;
3023                         (printf)
3024                                 cf_value='/* nothing */'
3025                                 if test "$cf_printf_attribute" != no ; then
3026                                         cf_value='__attribute__((format(printf,fmt,var)))'
3027                                         AC_DEFINE(GCC_PRINTF,1,[Define to 1 if the compiler supports gcc-like printf attribute.])
3028                                 fi
3029                                 AC_DEFINE_UNQUOTED(GCC_PRINTFLIKE(fmt,var),$cf_value,[Define to printf-attribute for gcc])
3030                                 ;;
3031                         (scanf)
3032                                 cf_value='/* nothing */'
3033                                 if test "$cf_scanf_attribute" != no ; then
3034                                         cf_value='__attribute__((format(scanf,fmt,var)))'
3035                                         AC_DEFINE(GCC_SCANF,1,[Define to 1 if the compiler supports gcc-like scanf attribute.])
3036                                 fi
3037                                 AC_DEFINE_UNQUOTED(GCC_SCANFLIKE(fmt,var),$cf_value,[Define to sscanf-attribute for gcc])
3038                                 ;;
3039                         (unused)
3040                                 AC_DEFINE_UNQUOTED(GCC_UNUSED,$cf_directive,[Define to unused-attribute for gcc])
3041                                 ;;
3042                         esac
3043                 fi
3044         done
3045 else
3046         ${FGREP-fgrep} define conftest.i >>confdefs.h
3047 fi
3048 rm -rf ./conftest*
3049 fi
3050 ])dnl
3051 dnl ---------------------------------------------------------------------------
3052 dnl CF_GCC_VERSION version: 9 updated: 2023/03/05 14:30:13
3053 dnl --------------
3054 dnl Find version of gcc, and (because icc/clang pretend to be gcc without being
3055 dnl compatible), attempt to determine if icc/clang is actually used.
3056 AC_DEFUN([CF_GCC_VERSION],[
3057 AC_REQUIRE([AC_PROG_CC])
3058 GCC_VERSION=none
3059 if test "$GCC" = yes ; then
3060         AC_MSG_CHECKING(version of $CC)
3061         GCC_VERSION="`${CC} --version 2>/dev/null | sed -e '2,$d' -e 's/^[[^(]]*([[^)]][[^)]]*) //' -e 's/^[[^0-9.]]*//' -e 's/[[^0-9.]].*//'`"
3062         test -z "$GCC_VERSION" && GCC_VERSION=unknown
3063         AC_MSG_RESULT($GCC_VERSION)
3064 fi
3065 CF_INTEL_COMPILER(GCC,INTEL_COMPILER,CFLAGS)
3066 CF_CLANG_COMPILER(GCC,CLANG_COMPILER,CFLAGS)
3067 ])dnl
3068 dnl ---------------------------------------------------------------------------
3069 dnl CF_GCC_WARNINGS version: 41 updated: 2021/01/01 16:53:59
3070 dnl ---------------
3071 dnl Check if the compiler supports useful warning options.  There's a few that
3072 dnl we don't use, simply because they're too noisy:
3073 dnl
3074 dnl     -Wconversion (useful in older versions of gcc, but not in gcc 2.7.x)
3075 dnl     -Winline (usually not worthwhile)
3076 dnl     -Wredundant-decls (system headers make this too noisy)
3077 dnl     -Wtraditional (combines too many unrelated messages, only a few useful)
3078 dnl     -Wwrite-strings (too noisy, but should review occasionally).  This
3079 dnl             is enabled for ncurses using "--enable-const".
3080 dnl     -pedantic
3081 dnl
3082 dnl Parameter:
3083 dnl     $1 is an optional list of gcc warning flags that a particular
3084 dnl             application might want to use, e.g., "no-unused" for
3085 dnl             -Wno-unused
3086 dnl Special:
3087 dnl     If $with_ext_const is "yes", add a check for -Wwrite-strings
3088 dnl
3089 AC_DEFUN([CF_GCC_WARNINGS],
3090 [
3091 AC_REQUIRE([CF_GCC_VERSION])
3092 if test "x$have_x" = xyes; then CF_CONST_X_STRING fi
3093 cat > "conftest.$ac_ext" <<EOF
3094 #line __oline__ "${as_me:-configure}"
3095 int main(int argc, char *argv[[]]) { return (argv[[argc-1]] == 0) ; }
3096 EOF
3097 if test "$INTEL_COMPILER" = yes
3098 then
3099 # The "-wdXXX" options suppress warnings:
3100 # remark #1419: external declaration in primary source file
3101 # remark #1683: explicit conversion of a 64-bit integral type to a smaller integral type (potential portability problem)
3102 # remark #1684: conversion from pointer to same-sized integral type (potential portability problem)
3103 # remark #193: zero used for undefined preprocessing identifier
3104 # remark #593: variable "curs_sb_left_arrow" was set but never used
3105 # remark #810: conversion from "int" to "Dimension={unsigned short}" may lose significant bits
3106 # remark #869: parameter "tw" was never referenced
3107 # remark #981: operands are evaluated in unspecified order
3108 # warning #279: controlling expression is constant
3109
3110         AC_CHECKING([for $CC warning options])
3111         cf_save_CFLAGS="$CFLAGS"
3112         EXTRA_CFLAGS="$EXTRA_CFLAGS -Wall"
3113         for cf_opt in \
3114                 wd1419 \
3115                 wd1683 \
3116                 wd1684 \
3117                 wd193 \
3118                 wd593 \
3119                 wd279 \
3120                 wd810 \
3121                 wd869 \
3122                 wd981
3123         do
3124                 CFLAGS="$cf_save_CFLAGS $EXTRA_CFLAGS -$cf_opt"
3125                 if AC_TRY_EVAL(ac_compile); then
3126                         test -n "$verbose" && AC_MSG_RESULT(... -$cf_opt)
3127                         EXTRA_CFLAGS="$EXTRA_CFLAGS -$cf_opt"
3128                 fi
3129         done
3130         CFLAGS="$cf_save_CFLAGS"
3131 elif test "$GCC" = yes && test "$GCC_VERSION" != "unknown"
3132 then
3133         AC_CHECKING([for $CC warning options])
3134         cf_save_CFLAGS="$CFLAGS"
3135         cf_warn_CONST=""
3136         test "$with_ext_const" = yes && cf_warn_CONST="Wwrite-strings"
3137         cf_gcc_warnings="Wignored-qualifiers Wlogical-op Wvarargs"
3138         test "x$CLANG_COMPILER" = xyes && cf_gcc_warnings=
3139         for cf_opt in W Wall \
3140                 Wbad-function-cast \
3141                 Wcast-align \
3142                 Wcast-qual \
3143                 Wdeclaration-after-statement \
3144                 Wextra \
3145                 Winline \
3146                 Wmissing-declarations \
3147                 Wmissing-prototypes \
3148                 Wnested-externs \
3149                 Wpointer-arith \
3150                 Wshadow \
3151                 Wstrict-prototypes \
3152                 Wundef Wno-inline $cf_gcc_warnings $cf_warn_CONST $1
3153         do
3154                 CFLAGS="$cf_save_CFLAGS $EXTRA_CFLAGS -$cf_opt"
3155                 if AC_TRY_EVAL(ac_compile); then
3156                         test -n "$verbose" && AC_MSG_RESULT(... -$cf_opt)
3157                         case "$cf_opt" in
3158                         (Winline)
3159                                 case "$GCC_VERSION" in
3160                                 ([[34]].*)
3161                                         CF_VERBOSE(feature is broken in gcc $GCC_VERSION)
3162                                         continue;;
3163                                 esac
3164                                 ;;
3165                         (Wpointer-arith)
3166                                 case "$GCC_VERSION" in
3167                                 ([[12]].*)
3168                                         CF_VERBOSE(feature is broken in gcc $GCC_VERSION)
3169                                         continue;;
3170                                 esac
3171                                 ;;
3172                         esac
3173                         EXTRA_CFLAGS="$EXTRA_CFLAGS -$cf_opt"
3174                 fi
3175         done
3176         CFLAGS="$cf_save_CFLAGS"
3177 fi
3178 rm -rf ./conftest*
3179
3180 AC_SUBST(EXTRA_CFLAGS)
3181 ])dnl
3182 dnl ---------------------------------------------------------------------------
3183 dnl CF_GETOPT_HEADER version: 8 updated: 2021/06/19 19:16:16
3184 dnl ----------------
3185 dnl Check for getopt's variables which are commonly defined in stdlib.h,
3186 dnl unistd.h or (nonstandard) in getopt.h
3187 AC_DEFUN([CF_GETOPT_HEADER],
3188 [
3189 AC_HAVE_HEADERS(unistd.h getopt.h)
3190 AC_CACHE_CHECK(for header declaring getopt variables,cf_cv_getopt_header,[
3191 cf_cv_getopt_header=none
3192 for cf_header in stdio.h stdlib.h unistd.h getopt.h
3193 do
3194 AC_TRY_COMPILE([
3195 #include <$cf_header>],
3196 [int x = optind; char *y = optarg; (void)x; (void)y],
3197 [cf_cv_getopt_header=$cf_header
3198  break])
3199 done
3200 ])
3201 if test "$cf_cv_getopt_header" != none ; then
3202         AC_DEFINE(HAVE_GETOPT_HEADER,1,[Define to 1 if getopt variables are declared in header])
3203 fi
3204 if test "$cf_cv_getopt_header" = getopt.h ; then
3205         AC_DEFINE(NEED_GETOPT_H,1,[Define to 1 if we must include getopt.h])
3206 fi
3207 ])dnl
3208 dnl ---------------------------------------------------------------------------
3209 dnl CF_GNATPREP_OPT_T version: 1 updated: 2014/08/02 18:37:25
3210 dnl -----------------
3211 AC_DEFUN([CF_GNATPREP_OPT_T],[
3212 AC_CACHE_CHECK(if GNATPREP supports -T option,cf_cv_gnatprep_opt_t,[
3213 cf_cv_gnatprep_opt_t=no
3214 gnatprep -T 2>/dev/null >/dev/null && cf_cv_gnatprep_opt_t=yes
3215 ])
3216 test "$cf_cv_gnatprep_opt_t" = yes && GNATPREP_OPTS="-T $GNATPREP_OPTS"
3217 AC_SUBST(GNATPREP_OPTS)
3218 ])dnl
3219 dnl ---------------------------------------------------------------------------
3220 dnl CF_GNAT_GENERICS version: 7 updated: 2021/01/01 13:31:04
3221 dnl ----------------
3222 AC_DEFUN([CF_GNAT_GENERICS],
3223 [
3224 AC_REQUIRE([CF_GNAT_VERSION])
3225
3226 AC_MSG_CHECKING(if GNAT supports generics)
3227 case "$cf_cv_gnat_version" in
3228 (3.1[[1-9]]*|3.[[2-9]]*|[[4-9]].*|[[1-9]][[0-9]].[[0-9]]*|20[[0-9]][[0-9]])
3229         cf_gnat_generics=yes
3230         ;;
3231 (*)
3232         cf_gnat_generics=no
3233         ;;
3234 esac
3235 AC_MSG_RESULT($cf_gnat_generics)
3236
3237 if test "$cf_gnat_generics" = yes
3238 then
3239         cf_compile_generics=generics
3240         cf_generic_objects="\${GENOBJS}"
3241 else
3242         cf_compile_generics=
3243         cf_generic_objects=
3244 fi
3245
3246 AC_SUBST(cf_compile_generics)
3247 AC_SUBST(cf_generic_objects)
3248 ])dnl
3249 dnl ---------------------------------------------------------------------------
3250 dnl CF_GNAT_PROJECTS version: 13 updated: 2021/01/02 17:09:14
3251 dnl ----------------
3252 dnl GNAT projects are configured with ".gpr" project files.
3253 dnl GNAT libraries are a further development, using the project feature.
3254 AC_DEFUN([CF_GNAT_PROJECTS],
3255 [
3256 AC_REQUIRE([CF_GNAT_VERSION])
3257 AC_REQUIRE([CF_DISABLE_GNAT_PROJECTS])
3258
3259 cf_gnat_libraries=no
3260 cf_gnat_projects=no
3261
3262 if test "$enable_gnat_projects" != no ; then
3263 AC_MSG_CHECKING(if GNAT supports project files)
3264 case "$cf_cv_gnat_version" in
3265 (3.[[0-9]]*)
3266         ;;
3267 (*)
3268         case "$cf_cv_system_name" in
3269         (cygwin*|msys*)
3270                 ;;
3271         (*)
3272                 rm -rf ./conftest* ./*~conftest*
3273                 if mkdir conftest.src conftest.bin conftest.lib
3274                 then
3275                         cd conftest.src
3276                         rm -rf ./conftest* ./*~conftest*
3277                         cat >>library.gpr <<CF_EOF
3278 project Library is
3279   Kind := External ("LIB_KIND");
3280   for Library_Name use "ConfTest";
3281   for Object_Dir use ".";
3282   for Library_ALI_Dir use External("LIBRARY_DIR");
3283   for Library_Version use External ("SONAME");
3284   for Library_Kind use Kind;
3285   for Library_Dir use External("BUILD_DIR");
3286   Source_Dir := External ("SOURCE_DIR");
3287   for Source_Dirs use (Source_Dir);
3288 end Library;
3289 CF_EOF
3290                         cat >>confpackage.ads <<CF_EOF
3291 package ConfPackage is
3292    procedure conftest;
3293 end ConfPackage;
3294 CF_EOF
3295                         cat >>confpackage.adb <<CF_EOF
3296 with Text_IO;
3297 package body ConfPackage is
3298    procedure conftest is
3299    begin
3300       Text_IO.Put ("Hello World");
3301       Text_IO.New_Line;
3302    end conftest;
3303 end ConfPackage;
3304 CF_EOF
3305                         if ( "$cf_ada_make" $ADAFLAGS \
3306                                         -Plibrary.gpr \
3307                                         -XBUILD_DIR="`cd ../conftest.bin;pwd`" \
3308                                         -XLIBRARY_DIR="`cd ../conftest.lib;pwd`" \
3309                                         -XSOURCE_DIR="`pwd`" \
3310                                         -XSONAME=libConfTest.so.1 \
3311                                         -XLIB_KIND=static 1>&AC_FD_CC 2>&1 ) ; then
3312                                 cf_gnat_projects=yes
3313                         fi
3314                         cd ..
3315                 fi
3316                 if test -f conftest.lib/confpackage.ali
3317                 then
3318                         cf_gnat_libraries=yes
3319                 fi
3320                 rm -rf ./conftest* ./*~conftest*
3321                 ;;
3322         esac
3323         ;;
3324 esac
3325 AC_MSG_RESULT($cf_gnat_projects)
3326 fi # enable_gnat_projects
3327
3328 if test "$cf_gnat_projects" = yes
3329 then
3330         AC_MSG_CHECKING(if GNAT supports libraries)
3331         AC_MSG_RESULT($cf_gnat_libraries)
3332 fi
3333
3334 USE_OLD_MAKERULES=""
3335 USE_GNAT_PROJECTS="#"
3336 USE_GNAT_MAKE_GPR="#"
3337 USE_GNAT_GPRBUILD="#"
3338
3339 if test "$cf_gnat_projects" = yes
3340 then
3341         USE_OLD_MAKERULES="#"
3342         USE_GNAT_PROJECTS=""
3343         if test "$cf_cv_VERSION_GPRBUILD" != no
3344         then
3345                 USE_GNAT_GPRBUILD=""
3346         elif test "$cf_cv_VERSION_GNATMAKE" != no
3347         then
3348                 USE_GNAT_MAKE_GPR=""
3349         else
3350                 AC_MSG_WARN(use old makefile rules since tools are missing)
3351         fi
3352 fi
3353
3354 if test "$cf_gnat_libraries" = yes
3355 then
3356         USE_GNAT_LIBRARIES=""
3357 else
3358         USE_GNAT_LIBRARIES="#"
3359 fi
3360
3361 AC_SUBST(USE_OLD_MAKERULES)
3362 AC_SUBST(USE_GNAT_PROJECTS)
3363 AC_SUBST(USE_GNAT_LIBRARIES)
3364 AC_SUBST(USE_GNAT_MAKE_GPR)
3365 AC_SUBST(USE_GNAT_GPRBUILD)
3366 ])dnl
3367 dnl ---------------------------------------------------------------------------
3368 dnl CF_GNAT_SIGINT version: 2 updated: 2021/01/01 13:31:04
3369 dnl --------------
3370 dnl Check if gnat supports SIGINT, and presumably tasking.  For the latter, it
3371 dnl is noted that gnat may compile a tasking unit even for configurations which
3372 dnl fail at runtime.
3373 AC_DEFUN([CF_GNAT_SIGINT],[
3374 AC_CACHE_CHECK(if GNAT supports SIGINT,cf_cv_gnat_sigint,[
3375 CF_GNAT_TRY_LINK([with Ada.Interrupts.Names;
3376
3377 package ConfTest is
3378
3379    pragma Warnings (Off);  --  the next pragma exists since 3.11p
3380    pragma Unreserve_All_Interrupts;
3381    pragma Warnings (On);
3382
3383    protected Process is
3384       procedure Stop;
3385       function Continue return Boolean;
3386       pragma Attach_Handler (Stop, Ada.Interrupts.Names.SIGINT);
3387    private
3388       Done : Boolean := False;
3389    end Process;
3390
3391 end ConfTest;],
3392 [package body ConfTest is
3393    protected body Process is
3394       procedure Stop is
3395       begin
3396          Done := True;
3397       end Stop;
3398       function Continue return Boolean is
3399       begin
3400          return not Done;
3401       end Continue;
3402    end Process;
3403 end ConfTest;],
3404         [cf_cv_gnat_sigint=yes],
3405         [cf_cv_gnat_sigint=no])])
3406
3407 if test "$cf_cv_gnat_sigint" = yes ; then
3408         USE_GNAT_SIGINT=""
3409 else
3410         USE_GNAT_SIGINT="#"
3411 fi
3412 AC_SUBST(USE_GNAT_SIGINT)
3413 ])dnl
3414 dnl ---------------------------------------------------------------------------
3415 dnl CF_GNAT_TRY_LINK version: 4 updated: 2021/01/01 13:31:04
3416 dnl ----------------
3417 dnl Verify that a test program compiles/links with GNAT.
3418 dnl $cf_ada_make is set to the program that compiles/links
3419 dnl $ADAFLAGS may be set to the GNAT flags.
3420 dnl
3421 dnl $1 is the text of the spec
3422 dnl $2 is the text of the body
3423 dnl $3 is the shell command to execute if successful
3424 dnl $4 is the shell command to execute if not successful
3425 AC_DEFUN([CF_GNAT_TRY_LINK],
3426 [
3427 rm -rf ./conftest* ./*~conftest*
3428 cat >>conftest.ads <<CF_EOF
3429 $1
3430 CF_EOF
3431 cat >>conftest.adb <<CF_EOF
3432 $2
3433 CF_EOF
3434 if ( "$cf_ada_make" $ADAFLAGS conftest 1>&AC_FD_CC 2>&1 ) ; then
3435 ifelse($3,,      :,[      $3])
3436 ifelse($4,,,[else
3437    $4])
3438 fi
3439 rm -rf ./conftest* ./*~conftest*
3440 ])dnl
3441 dnl ---------------------------------------------------------------------------
3442 dnl CF_GNAT_TRY_RUN version: 6 updated: 2021/01/01 13:31:04
3443 dnl ---------------
3444 dnl Verify that a test program compiles and runs with GNAT
3445 dnl $cf_ada_make is set to the program that compiles/links
3446 dnl $ADAFLAGS may be set to the GNAT flags.
3447 dnl
3448 dnl $1 is the text of the spec
3449 dnl $2 is the text of the body
3450 dnl $3 is the shell command to execute if successful
3451 dnl $4 is the shell command to execute if not successful
3452 AC_DEFUN([CF_GNAT_TRY_RUN],
3453 [
3454 rm -rf ./conftest* ./*~conftest*
3455 cat >>conftest.ads <<CF_EOF
3456 $1
3457 CF_EOF
3458 cat >>conftest.adb <<CF_EOF
3459 $2
3460 CF_EOF
3461 if ( "$cf_ada_make" $ADAFLAGS conftest 1>&AC_FD_CC 2>&1 ) ; then
3462    if ( ./conftest 1>&AC_FD_CC 2>&1 ) ; then
3463 ifelse($3,,      :,[      $3])
3464 ifelse($4,,,[   else
3465       $4])
3466    fi
3467 ifelse($4,,,[else
3468    $4])
3469 fi
3470 rm -rf ./conftest* ./*~conftest*
3471 ])dnl
3472 dnl ---------------------------------------------------------------------------
3473 dnl CF_GNAT_VERSION version: 22 updated: 2019/12/31 08:53:54
3474 dnl ---------------
3475 dnl $1 = cache variable to update
3476 dnl $2 = program name
3477 dnl Verify version of GNAT or related tool
3478 AC_DEFUN([CF_GNAT_VERSION],
3479 [
3480 AC_CACHE_CHECK(for ifelse($2,,gnat,$2) version, cf_cv_gnat_version,[
3481 cf_cv_gnat_version=`ifelse($2,,${cf_ada_make:-gnatmake},$2) --version 2>&1 | \
3482         grep '[[0-9]].[[0-9]][[0-9]]*' |\
3483         sed -e '2,$d' -e 's/[[^0-9 \.]]//g' -e 's/^[[ ]]*//' -e 's/ .*//'`
3484 ])
3485 test -z "$cf_cv_gnat_version" && cf_cv_gnat_version=no
3486 ifelse($1,,,[eval $1=$cf_cv_gnat_version; unset cf_cv_gnat_version])
3487 ])dnl
3488 dnl ---------------------------------------------------------------------------
3489 dnl CF_GNU_SOURCE version: 10 updated: 2018/12/10 20:09:41
3490 dnl -------------
3491 dnl Check if we must define _GNU_SOURCE to get a reasonable value for
3492 dnl _XOPEN_SOURCE, upon which many POSIX definitions depend.  This is a defect
3493 dnl (or misfeature) of glibc2, which breaks portability of many applications,
3494 dnl since it is interwoven with GNU extensions.
3495 dnl
3496 dnl Well, yes we could work around it...
3497 dnl
3498 dnl Parameters:
3499 dnl     $1 is the nominal value for _XOPEN_SOURCE
3500 AC_DEFUN([CF_GNU_SOURCE],
3501 [
3502 cf_gnu_xopen_source=ifelse($1,,500,$1)
3503
3504 AC_CACHE_CHECK(if this is the GNU C library,cf_cv_gnu_library,[
3505 AC_TRY_COMPILE([#include <sys/types.h>],[
3506         #if __GLIBC__ > 0 && __GLIBC_MINOR__ >= 0
3507                 return 0;
3508         #elif __NEWLIB__ > 0 && __NEWLIB_MINOR__ >= 0
3509                 return 0;
3510         #else
3511         #       error not GNU C library
3512         #endif],
3513         [cf_cv_gnu_library=yes],
3514         [cf_cv_gnu_library=no])
3515 ])
3516
3517 if test x$cf_cv_gnu_library = xyes; then
3518
3519         # With glibc 2.19 (13 years after this check was begun), _DEFAULT_SOURCE
3520         # was changed to help a little.  newlib incorporated the change about 4
3521         # years later.
3522         AC_CACHE_CHECK(if _DEFAULT_SOURCE can be used as a basis,cf_cv_gnu_library_219,[
3523                 cf_save="$CPPFLAGS"
3524                 CF_APPEND_TEXT(CPPFLAGS,-D_DEFAULT_SOURCE)
3525                 AC_TRY_COMPILE([#include <sys/types.h>],[
3526                         #if (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 19) || (__GLIBC__ > 2)
3527                                 return 0;
3528                         #elif (__NEWLIB__ == 2 && __NEWLIB_MINOR__ >= 4) || (__GLIBC__ > 3)
3529                                 return 0;
3530                         #else
3531                         #       error GNU C library __GLIBC__.__GLIBC_MINOR__ is too old
3532                         #endif],
3533                         [cf_cv_gnu_library_219=yes],
3534                         [cf_cv_gnu_library_219=no])
3535                 CPPFLAGS="$cf_save"
3536         ])
3537
3538         if test "x$cf_cv_gnu_library_219" = xyes; then
3539                 cf_save="$CPPFLAGS"
3540                 AC_CACHE_CHECK(if _XOPEN_SOURCE=$cf_gnu_xopen_source works with _DEFAULT_SOURCE,cf_cv_gnu_dftsrc_219,[
3541                         CF_ADD_CFLAGS(-D_DEFAULT_SOURCE -D_XOPEN_SOURCE=$cf_gnu_xopen_source)
3542                         AC_TRY_COMPILE([
3543                                 #include <limits.h>
3544                                 #include <sys/types.h>
3545                                 ],[
3546                                 #if (_XOPEN_SOURCE >= $cf_gnu_xopen_source) && (MB_LEN_MAX > 1)
3547                                         return 0;
3548                                 #else
3549                                 #       error GNU C library is too old
3550                                 #endif],
3551                                 [cf_cv_gnu_dftsrc_219=yes],
3552                                 [cf_cv_gnu_dftsrc_219=no])
3553                         ])
3554                 test "x$cf_cv_gnu_dftsrc_219" = "xyes" || CPPFLAGS="$cf_save"
3555         else
3556                 cf_cv_gnu_dftsrc_219=maybe
3557         fi
3558
3559         if test "x$cf_cv_gnu_dftsrc_219" != xyes; then
3560
3561                 AC_CACHE_CHECK(if we must define _GNU_SOURCE,cf_cv_gnu_source,[
3562                 AC_TRY_COMPILE([#include <sys/types.h>],[
3563                         #ifndef _XOPEN_SOURCE
3564                         #error  expected _XOPEN_SOURCE to be defined
3565                         #endif],
3566                         [cf_cv_gnu_source=no],
3567                         [cf_save="$CPPFLAGS"
3568                          CF_ADD_CFLAGS(-D_GNU_SOURCE)
3569                          AC_TRY_COMPILE([#include <sys/types.h>],[
3570                                 #ifdef _XOPEN_SOURCE
3571                                 #error  expected _XOPEN_SOURCE to be undefined
3572                                 #endif],
3573                                 [cf_cv_gnu_source=no],
3574                                 [cf_cv_gnu_source=yes])
3575                         CPPFLAGS="$cf_save"
3576                         ])
3577                 ])
3578
3579                 if test "$cf_cv_gnu_source" = yes
3580                 then
3581                 AC_CACHE_CHECK(if we should also define _DEFAULT_SOURCE,cf_cv_default_source,[
3582                         CF_APPEND_TEXT(CPPFLAGS,-D_GNU_SOURCE)
3583                         AC_TRY_COMPILE([#include <sys/types.h>],[
3584                                 #ifdef _DEFAULT_SOURCE
3585                                 #error  expected _DEFAULT_SOURCE to be undefined
3586                                 #endif],
3587                                 [cf_cv_default_source=no],
3588                                 [cf_cv_default_source=yes])
3589                         ])
3590                         if test "$cf_cv_default_source" = yes
3591                         then
3592                                 CF_APPEND_TEXT(CPPFLAGS,-D_DEFAULT_SOURCE)
3593                         fi
3594                 fi
3595         fi
3596
3597 fi
3598 ])dnl
3599 dnl ---------------------------------------------------------------------------
3600 dnl CF_GPP_LIBRARY version: 13 updated: 2021/01/01 13:31:04
3601 dnl --------------
3602 dnl If we're trying to use g++, test if libg++ is installed (a rather common
3603 dnl problem :-).  If we have the compiler but no library, we'll be able to
3604 dnl configure, but won't be able to build the c++ demo program.
3605 AC_DEFUN([CF_GPP_LIBRARY],
3606 [
3607 cf_cxx_library=unknown
3608 case "$cf_cv_system_name" in
3609 (os2*)
3610         cf_gpp_libname=gpp
3611         ;;
3612 (*)
3613         cf_gpp_libname=g++
3614         ;;
3615 esac
3616 if test "$GXX" = yes; then
3617         AC_MSG_CHECKING([for lib$cf_gpp_libname])
3618         cf_save="$LIBS"
3619         CF_ADD_LIB($cf_gpp_libname)
3620         AC_TRY_LINK([
3621 #include <$cf_gpp_libname/builtin.h>
3622         ],
3623         [two_arg_error_handler_t foo2 = lib_error_handler],
3624         [cf_cxx_library=yes
3625          CF_ADD_LIB($cf_gpp_libname,CXXLIBS)
3626          if test "$cf_gpp_libname" = cpp ; then
3627             AC_DEFINE(HAVE_GPP_BUILTIN_H,1,[Define to 1 if we have gpp builtin.h])
3628          else
3629             AC_DEFINE(HAVE_GXX_BUILTIN_H,1,[Define to 1 if we have g++ builtin.h])
3630          fi],
3631         [AC_TRY_LINK([
3632 #include <builtin.h>
3633         ],
3634         [two_arg_error_handler_t foo2 = lib_error_handler],
3635         [cf_cxx_library=yes
3636          CF_ADD_LIB($cf_gpp_libname,CXXLIBS)
3637          AC_DEFINE(HAVE_BUILTIN_H,1,[Define to 1 if we have builtin.h])],
3638         [cf_cxx_library=no])])
3639         LIBS="$cf_save"
3640         AC_MSG_RESULT($cf_cxx_library)
3641 fi
3642 ])dnl
3643 dnl ---------------------------------------------------------------------------
3644 dnl CF_GXX_VERSION version: 9 updated: 2023/03/05 14:30:13
3645 dnl --------------
3646 dnl Check for version of g++
3647 AC_DEFUN([CF_GXX_VERSION],[
3648 AC_REQUIRE([AC_PROG_CPP])
3649 GXX_VERSION=none
3650 if test "$GXX" = yes; then
3651         AC_MSG_CHECKING(version of ${CXX:-g++})
3652         GXX_VERSION="`${CXX:-g++} --version 2>/dev/null | sed -e '2,$d' -e 's/^[[^(]]*([[^)]][[^)]]*) //' -e 's/^[[^0-9.]]*//' -e 's/[[^0-9.]].*//'`"
3653         if test -z "$GXX_VERSION"
3654         then
3655                 GXX_VERSION=unknown
3656                 GXX=no
3657         fi
3658         AC_MSG_RESULT($GXX_VERSION)
3659 fi
3660 ])dnl
3661 dnl ---------------------------------------------------------------------------
3662 dnl CF_GXX_WARNINGS version: 11 updated: 2021/01/08 16:50:55
3663 dnl ---------------
3664 dnl Check if the compiler supports useful warning options.
3665 dnl
3666 dnl Most of gcc's options apply to g++, except:
3667 dnl     -Wbad-function-cast
3668 dnl     -Wmissing-declarations
3669 dnl     -Wnested-externs
3670 dnl
3671 dnl Omit a few (for now):
3672 dnl     -Winline
3673 dnl
3674 dnl Parameter:
3675 dnl     $1 is an optional list of g++ warning flags that a particular
3676 dnl             application might want to use, e.g., "no-unused" for
3677 dnl             -Wno-unused
3678 dnl Special:
3679 dnl     If $with_ext_const is "yes", add a check for -Wwrite-strings
3680 dnl
3681 AC_DEFUN([CF_GXX_WARNINGS],
3682 [
3683
3684 CF_INTEL_COMPILER(GXX,INTEL_CPLUSPLUS,CXXFLAGS)
3685 CF_CLANG_COMPILER(GXX,CLANG_CPLUSPLUS,CXXFLAGS)
3686
3687 AC_REQUIRE([CF_GXX_VERSION])
3688
3689 AC_LANG_SAVE
3690 AC_LANG_CPLUSPLUS
3691
3692 cat > conftest.$ac_ext <<EOF
3693 #line __oline__ "configure"
3694 int main(int argc, char *argv[[]]) { return (argv[[argc-1]] == 0) ; }
3695 EOF
3696
3697 if test "$INTEL_CPLUSPLUS" = yes
3698 then
3699 # The "-wdXXX" options suppress warnings:
3700 # remark #1419: external declaration in primary source file
3701 # remark #1682: implicit conversion of a 64-bit integral type to a smaller integral type (potential portability problem)
3702 # remark #1683: explicit conversion of a 64-bit integral type to a smaller integral type (potential portability problem)
3703 # remark #1684: conversion from pointer to same-sized integral type (potential portability problem)
3704 # remark #193: zero used for undefined preprocessing identifier
3705 # remark #593: variable "curs_sb_left_arrow" was set but never used
3706 # remark #810: conversion from "int" to "Dimension={unsigned short}" may lose significant bits
3707 # remark #869: parameter "tw" was never referenced
3708 # remark #981: operands are evaluated in unspecified order
3709 # warning #269: invalid format string conversion
3710
3711         AC_CHECKING([for $CC warning options])
3712         cf_save_CXXFLAGS="$CXXFLAGS"
3713         EXTRA_CXXFLAGS="-Wall"
3714         for cf_opt in \
3715                 wd1419 \
3716                 wd1682 \
3717                 wd1683 \
3718                 wd1684 \
3719                 wd193 \
3720                 wd279 \
3721                 wd593 \
3722                 wd810 \
3723                 wd869 \
3724                 wd981
3725         do
3726                 CXXFLAGS="$cf_save_CXXFLAGS $EXTRA_CXXFLAGS -$cf_opt"
3727                 if AC_TRY_EVAL(ac_compile); then
3728                         test -n "$verbose" && AC_MSG_RESULT(... -$cf_opt)
3729                         EXTRA_CXXFLAGS="$EXTRA_CXXFLAGS -$cf_opt"
3730                 fi
3731         done
3732         CXXFLAGS="$cf_save_CXXFLAGS"
3733
3734 elif test "$GXX" = yes
3735 then
3736         AC_CHECKING([for $CXX warning options])
3737         cf_save_CXXFLAGS="$CXXFLAGS"
3738         EXTRA_CXXFLAGS="-W -Wall"
3739         cf_gxx_extra_warnings=""
3740         test "$with_ext_const" = yes && cf_gxx_extra_warnings="Wwrite-strings"
3741         case "$GXX_VERSION" in
3742         ([[1-2]].*)
3743                 ;;
3744         (*)
3745                 cf_gxx_extra_warnings="$cf_gxx_extra_warnings Weffc++"
3746                 ;;
3747         esac
3748         for cf_opt in \
3749                 Wabi \
3750                 fabi-version=0 \
3751                 Wextra \
3752                 Wignored-qualifiers \
3753                 Wlogical-op \
3754                 Woverloaded-virtual \
3755                 Wsign-promo \
3756                 Wsynth \
3757                 Wold-style-cast \
3758                 Wcast-align \
3759                 Wcast-qual \
3760                 Wpointer-arith \
3761                 Wshadow \
3762                 Wundef $cf_gxx_extra_warnings $1
3763         do
3764                 CXXFLAGS="$cf_save_CXXFLAGS $EXTRA_CXXFLAGS -Werror -$cf_opt"
3765                 if AC_TRY_EVAL(ac_compile); then
3766                         test -n "$verbose" && AC_MSG_RESULT(... -$cf_opt)
3767                         EXTRA_CXXFLAGS="$EXTRA_CXXFLAGS -$cf_opt"
3768                 else
3769                         test -n "$verbose" && AC_MSG_RESULT(... no -$cf_opt)
3770                 fi
3771         done
3772         CXXFLAGS="$cf_save_CXXFLAGS"
3773 fi
3774
3775 rm -rf ./conftest*
3776 AC_LANG_RESTORE
3777 AC_SUBST(EXTRA_CXXFLAGS)
3778 ])dnl
3779 dnl ---------------------------------------------------------------------------
3780 dnl CF_HASHED_DB version: 7 updated: 2015/04/18 08:56:57
3781 dnl ------------
3782 dnl Look for an instance of the Berkeley hashed database.
3783 dnl
3784 dnl $1 = optional parameter, to specify install-prefix for the database.
3785 AC_DEFUN([CF_HASHED_DB],
3786 [
3787 ifelse([$1],,,[
3788 case $1 in
3789 (yes|*able*)
3790         ;;
3791 (*)
3792         if test -d "$1" ; then
3793                 CF_ADD_INCDIR($1/include)
3794                 CF_ADD_LIBDIR($1/lib)
3795         else
3796                 case "$1" in
3797                 (./*|../*|/*)
3798                         AC_MSG_WARN(no such directory $1)
3799                         ;;
3800                 (*)
3801                         CF_FIND_SUB_INCDIR($1)
3802                         CF_FIND_SUB_LIBDIR($1)
3803                         ;;
3804                 esac
3805         fi
3806 esac
3807 ])
3808 AC_CHECK_HEADER(db.h,[
3809 CF_HASHED_DB_VERSION
3810 if test "$cf_cv_hashed_db_version" = unknown ; then
3811         AC_MSG_ERROR(Cannot determine version of db)
3812 else
3813         CF_HASHED_DB_LIBS
3814         if test "$cf_cv_hashed_db_libs" = unknown ; then
3815                 AC_MSG_ERROR(Cannot determine library for db)
3816         elif test "$cf_cv_hashed_db_libs" != default ; then
3817                 CF_ADD_LIB($cf_cv_hashed_db_libs)
3818         fi
3819 fi
3820 ],[
3821         AC_MSG_ERROR(Cannot find db.h)
3822 ])
3823 ])dnl
3824 dnl ---------------------------------------------------------------------------
3825 dnl CF_HASHED_DB_LIBS version: 10 updated: 2021/01/02 17:09:14
3826 dnl -----------------
3827 dnl Given that we have the header and version for hashed database, find the
3828 dnl library information.
3829 AC_DEFUN([CF_HASHED_DB_LIBS],
3830 [
3831 AC_CACHE_CHECK(for db libraries, cf_cv_hashed_db_libs,[
3832 cf_cv_hashed_db_libs=unknown
3833 for cf_db_libs in "" db$cf_cv_hashed_db_version db-$cf_cv_hashed_db_version db ''
3834 do
3835         cf_save_libs="$LIBS"
3836         if test -n "$cf_db_libs"; then
3837                 CF_ADD_LIB($cf_db_libs)
3838         fi
3839         CF_MSG_LOG(checking for library $cf_db_libs)
3840         AC_TRY_LINK([
3841 $ac_includes_default
3842 #include <db.h>
3843 ],[
3844         char *path = "/tmp/foo";
3845 #ifdef DB_VERSION_MAJOR
3846 #if DB_VERSION_MAJOR >= 4
3847         DB *result = 0;
3848         db_create(&result, NULL, 0);
3849         result->open(result,
3850                 NULL,
3851                 path,
3852                 path,
3853                 DB_HASH,
3854                 DB_CREATE,
3855                 0644);
3856 #elif DB_VERSION_MAJOR >= 3
3857         DB *result = 0;
3858         db_create(&result, NULL, 0);
3859         result->open(result,
3860                 path,
3861                 path,
3862                 DB_HASH,
3863                 DB_CREATE,
3864                 0644);
3865 #elif DB_VERSION_MAJOR >= 2
3866         DB *result = 0;
3867         db_open(path,
3868                 DB_HASH,
3869                 DB_CREATE,
3870                 0644,
3871                 (DB_ENV *) 0,
3872                 (DB_INFO *) 0,
3873                 &result);
3874 #endif /* DB_VERSION_MAJOR */
3875 #else
3876         DB *result = dbopen(path,
3877                      2,
3878                      0644,
3879                      DB_HASH,
3880                      0);
3881 #endif
3882         ${cf_cv_main_return:-return}(result != 0)
3883 ],[
3884         if test -n "$cf_db_libs" ; then
3885                 cf_cv_hashed_db_libs=$cf_db_libs
3886         else
3887                 cf_cv_hashed_db_libs=default
3888         fi
3889         LIBS="$cf_save_libs"
3890         break
3891 ])
3892         LIBS="$cf_save_libs"
3893 done
3894 ])
3895 ])dnl
3896 dnl ---------------------------------------------------------------------------
3897 dnl CF_HASHED_DB_VERSION version: 5 updated: 2023/02/18 17:41:25
3898 dnl --------------------
3899 dnl Given that we have the header file for hashed database, find the version
3900 dnl information.
3901 AC_DEFUN([CF_HASHED_DB_VERSION],
3902 [
3903 AC_CACHE_CHECK(for version of db, cf_cv_hashed_db_version,[
3904 cf_cv_hashed_db_version=unknown
3905
3906 for cf_db_version in 1 2 3 4 5 6
3907 do
3908         CF_MSG_LOG(checking for db version $cf_db_version)
3909         AC_TRY_COMPILE([
3910 $ac_includes_default
3911 #include <db.h>
3912
3913 #ifdef DB_VERSION_MAJOR
3914         /* db2 (DB_VERSION_MAJOR=2) has also DB_VERSION_MINOR, tested with 7 */
3915 #if $cf_db_version == DB_VERSION_MAJOR
3916         /* ok */
3917 #else
3918         #error $cf_db_version is not DB_VERSION_MAJOR
3919 #endif
3920 #else
3921 #if $cf_db_version == 1
3922         /* ok: assuming this is DB 1.8.5 */
3923 #else
3924         #error $cf_db_version is not 1
3925 #endif
3926 #endif
3927 ],[DBT *foo = 0],[
3928         cf_cv_hashed_db_version=$cf_db_version
3929         break
3930         ])
3931 done
3932 ])
3933 ])dnl
3934 dnl ---------------------------------------------------------------------------
3935 dnl CF_HEADER_PATH version: 15 updated: 2021/01/01 13:31:04
3936 dnl --------------
3937 dnl Construct a search-list of directories for a nonstandard header-file
3938 dnl
3939 dnl Parameters
3940 dnl     $1 = the variable to return as result
3941 dnl     $2 = the package name
3942 AC_DEFUN([CF_HEADER_PATH],
3943 [
3944 $1=
3945
3946 # collect the current set of include-directories from compiler flags
3947 cf_header_path_list=""
3948 if test -n "${CFLAGS}${CPPFLAGS}" ; then
3949         for cf_header_path in $CPPFLAGS $CFLAGS
3950         do
3951                 case "$cf_header_path" in
3952                 (-I*)
3953                         cf_header_path=`echo ".$cf_header_path" |sed -e 's/^...//' -e 's,/include$,,'`
3954                         CF_ADD_SUBDIR_PATH($1,$2,include,$cf_header_path,NONE)
3955                         cf_header_path_list="$cf_header_path_list [$]$1"
3956                         ;;
3957                 esac
3958         done
3959 fi
3960
3961 # add the variations for the package we are looking for
3962 CF_SUBDIR_PATH($1,$2,include)
3963
3964 test "$includedir" != NONE && \
3965 test "$includedir" != "/usr/include" && \
3966 test -d "$includedir" && {
3967         test -d "$includedir" &&    $1="[$]$1 $includedir"
3968         test -d "$includedir/$2" && $1="[$]$1 $includedir/$2"
3969 }
3970
3971 test "$oldincludedir" != NONE && \
3972 test "$oldincludedir" != "/usr/include" && \
3973 test -d "$oldincludedir" && {
3974         test -d "$oldincludedir"    && $1="[$]$1 $oldincludedir"
3975         test -d "$oldincludedir/$2" && $1="[$]$1 $oldincludedir/$2"
3976 }
3977
3978 $1="[$]$1 $cf_header_path_list"
3979 ])dnl
3980 dnl ---------------------------------------------------------------------------
3981 dnl CF_HELP_MESSAGE version: 4 updated: 2019/12/31 08:53:54
3982 dnl ---------------
3983 dnl Insert text into the help-message, for readability, from AC_ARG_WITH.
3984 AC_DEFUN([CF_HELP_MESSAGE],
3985 [CF_ACVERSION_CHECK(2.53,[],[
3986 AC_DIVERT_HELP($1)])dnl
3987 ])dnl
3988 dnl ---------------------------------------------------------------------------
3989 dnl CF_INCLUDE_DIRS version: 10 updated: 2014/09/19 20:58:42
3990 dnl ---------------
3991 dnl Construct the list of include-options according to whether we're building
3992 dnl in the source directory or using '--srcdir=DIR' option.
3993 AC_DEFUN([CF_INCLUDE_DIRS],
3994 [
3995 if test "$srcdir" != "."; then
3996         CPPFLAGS="-I\${srcdir}/../include $CPPFLAGS"
3997 fi
3998 CPPFLAGS="-I../include $CPPFLAGS"
3999 if test "$srcdir" != "."; then
4000         CPPFLAGS="-I\${srcdir} $CPPFLAGS"
4001 fi
4002 CPPFLAGS="-I. $CPPFLAGS"
4003 AC_SUBST(CPPFLAGS)
4004 ])dnl
4005 dnl ---------------------------------------------------------------------------
4006 dnl CF_INSTALL_OPTS version: 2 updated: 2018/08/18 12:19:21
4007 dnl ---------------
4008 dnl prompt for/fill-in useful install-program options
4009 AC_DEFUN([CF_INSTALL_OPTS],
4010 [
4011 CF_INSTALL_OPT_S
4012 CF_INSTALL_OPT_P
4013 CF_INSTALL_OPT_O
4014 ])dnl
4015 dnl ---------------------------------------------------------------------------
4016 dnl CF_INSTALL_OPT_O version: 3 updated: 2020/12/31 20:19:42
4017 dnl ----------------
4018 dnl Almost all "install" programs default to the current user's ownership.
4019 dnl Almost - MINIX is an exception.
4020 AC_DEFUN([CF_INSTALL_OPT_O],
4021 [
4022 AC_MSG_CHECKING(if install needs to be told about ownership)
4023 case `$ac_config_guess` in
4024 (*minix)
4025         with_install_o=yes
4026         ;;
4027 (*)
4028         with_install_o=no
4029         ;;
4030 esac
4031
4032 AC_MSG_RESULT($with_install_o)
4033 if test "x$with_install_o" = xyes
4034 then
4035         INSTALL_OPT_O="`id root|sed -e 's/uid=[[0-9]]*(/ -o /' -e 's/gid=[[0-9]]*(/ -g /' -e 's/ [[^=[:space:]]][[^=[:space:]]]*=.*/ /' -e 's/)//g'`"
4036 else
4037         INSTALL_OPT_O=
4038 fi
4039
4040 AC_SUBST(INSTALL_OPT_O)
4041 ])dnl
4042 dnl ---------------------------------------------------------------------------
4043 dnl CF_INSTALL_OPT_P version: 3 updated: 2021/01/01 13:31:04
4044 dnl ----------------
4045 dnl Some install-programs accept a "-p" option to preserve file modification
4046 dnl timestamps.  That can be useful as an install option, as well as a way to
4047 dnl avoid the need for ranlib after copying a static archive.
4048 AC_DEFUN([CF_INSTALL_OPT_P],
4049 [
4050 : "${INSTALL:=install}"
4051 AC_CACHE_CHECK(if install accepts -p option, cf_cv_install_p,[
4052         rm -rf ./conftest*
4053         date >conftest.in
4054         mkdir conftest.out
4055         sleep 3
4056         if $INSTALL -p conftest.in conftest.out 2>/dev/null
4057         then
4058                 if test -f conftest.out/conftest.in
4059                 then
4060                         test conftest.in -nt conftest.out/conftest.in 2>conftest.err && \
4061                         test conftest.out/conftest.in -nt conftest.in 2>conftest.err
4062                         if test -s conftest.err
4063                         then
4064                                 cf_cv_install_p=no
4065                         else
4066                                 cf_cv_install_p=yes
4067                         fi
4068                 else
4069                         cf_cv_install_p=no
4070                 fi
4071         else
4072                 cf_cv_install_p=no
4073         fi
4074         rm -rf ./conftest*
4075 ])
4076 ])dnl
4077 dnl ---------------------------------------------------------------------------
4078 dnl CF_INSTALL_OPT_S version: 3 updated: 2021/01/05 19:23:48
4079 dnl ----------------
4080 dnl By default, we should strip executables which are installed, but leave the
4081 dnl ability to suppress that for unit-testing.
4082 AC_DEFUN([CF_INSTALL_OPT_S],
4083 [
4084 AC_MSG_CHECKING(if you want to install stripped executables)
4085 CF_ARG_DISABLE(stripping,
4086         [  --disable-stripping     do not strip (debug info) installed executables],
4087         [enable_stripping=no],
4088         [enable_stripping=yes])
4089 AC_MSG_RESULT($enable_stripping)
4090
4091 if test "$enable_stripping" = yes
4092 then
4093         INSTALL_OPT_S="-s"
4094 else
4095         INSTALL_OPT_S=
4096 fi
4097 AC_SUBST(INSTALL_OPT_S)
4098 ])dnl
4099 dnl ---------------------------------------------------------------------------
4100 dnl CF_INTEL_COMPILER version: 9 updated: 2023/02/18 17:41:25
4101 dnl -----------------
4102 dnl Check if the given compiler is really the Intel compiler for Linux.  It
4103 dnl tries to imitate gcc, but does not return an error when it finds a mismatch
4104 dnl between prototypes, e.g., as exercised by CF_MISSING_CHECK.
4105 dnl
4106 dnl This macro should be run "soon" after AC_PROG_CC or AC_PROG_CPLUSPLUS, to
4107 dnl ensure that it is not mistaken for gcc/g++.  It is normally invoked from
4108 dnl the wrappers for gcc and g++ warnings.
4109 dnl
4110 dnl $1 = GCC (default) or GXX
4111 dnl $2 = INTEL_COMPILER (default) or INTEL_CPLUSPLUS
4112 dnl $3 = CFLAGS (default) or CXXFLAGS
4113 AC_DEFUN([CF_INTEL_COMPILER],[
4114 AC_REQUIRE([AC_CANONICAL_HOST])
4115 ifelse([$2],,INTEL_COMPILER,[$2])=no
4116
4117 if test "$ifelse([$1],,[$1],GCC)" = yes ; then
4118         case "$host_os" in
4119         (linux*|gnu*)
4120                 AC_MSG_CHECKING(if this is really Intel ifelse([$1],GXX,C++,C) compiler)
4121                 cf_save_CFLAGS="$ifelse([$3],,CFLAGS,[$3])"
4122                 ifelse([$3],,CFLAGS,[$3])="$ifelse([$3],,CFLAGS,[$3]) -no-gcc"
4123                 AC_TRY_COMPILE([],[
4124 #ifdef __INTEL_COMPILER
4125 #else
4126 #error __INTEL_COMPILER is not defined
4127 #endif
4128 ],[ifelse([$2],,INTEL_COMPILER,[$2])=yes
4129 cf_save_CFLAGS="$cf_save_CFLAGS -we147"
4130 ],[])
4131                 ifelse([$3],,CFLAGS,[$3])="$cf_save_CFLAGS"
4132                 AC_MSG_RESULT($ifelse([$2],,INTEL_COMPILER,[$2]))
4133                 ;;
4134         esac
4135 fi
4136 ])dnl
4137 dnl ---------------------------------------------------------------------------
4138 dnl CF_ISASCII version: 4 updated: 2012/10/06 17:56:13
4139 dnl ----------
4140 dnl Check if we have either a function or macro for 'isascii()'.
4141 AC_DEFUN([CF_ISASCII],
4142 [
4143 AC_MSG_CHECKING(for isascii)
4144 AC_CACHE_VAL(cf_cv_have_isascii,[
4145         AC_TRY_LINK([#include <ctype.h>],[int x = isascii(' ')],
4146         [cf_cv_have_isascii=yes],
4147         [cf_cv_have_isascii=no])
4148 ])dnl
4149 AC_MSG_RESULT($cf_cv_have_isascii)
4150 test "$cf_cv_have_isascii" = yes && AC_DEFINE(HAVE_ISASCII,1,[Define to 1 if we have isascii()])
4151 ])dnl
4152 dnl ---------------------------------------------------------------------------
4153 dnl CF_LARGEFILE version: 12 updated: 2020/03/19 20:23:48
4154 dnl ------------
4155 dnl Add checks for large file support.
4156 AC_DEFUN([CF_LARGEFILE],[
4157 ifdef([AC_FUNC_FSEEKO],[
4158         AC_SYS_LARGEFILE
4159         if test "$enable_largefile" != no ; then
4160         AC_FUNC_FSEEKO
4161
4162         # Normally we would collect these definitions in the config.h,
4163         # but (like _XOPEN_SOURCE), some environments rely on having these
4164         # defined before any of the system headers are included.  Another
4165         # case comes up with C++, e.g., on AIX the compiler compiles the
4166         # header files by themselves before looking at the body files it is
4167         # told to compile.  For ncurses, those header files do not include
4168         # the config.h
4169         if test "$ac_cv_sys_large_files" != no
4170         then
4171                 CF_APPEND_TEXT(CPPFLAGS,-D_LARGE_FILES)
4172         fi
4173         if test "$ac_cv_sys_largefile_source" != no
4174         then
4175                 CF_APPEND_TEXT(CPPFLAGS,-D_LARGEFILE_SOURCE)
4176         fi
4177         if test "$ac_cv_sys_file_offset_bits" != no
4178         then
4179                 CF_APPEND_TEXT(CPPFLAGS,-D_FILE_OFFSET_BITS=$ac_cv_sys_file_offset_bits)
4180         fi
4181
4182         AC_CACHE_CHECK(whether to use struct dirent64, cf_cv_struct_dirent64,[
4183                 AC_TRY_COMPILE([
4184 #pragma GCC diagnostic error "-Wincompatible-pointer-types"
4185 #include <sys/types.h>
4186 #include <dirent.h>
4187                 ],[
4188                 /* if transitional largefile support is setup, this is true */
4189                 extern struct dirent64 * readdir(DIR *);
4190                 struct dirent64 *x = readdir((DIR *)0);
4191                 struct dirent *y = readdir((DIR *)0);
4192                 int z = x - y;
4193                 (void)z;
4194                 ],
4195                 [cf_cv_struct_dirent64=yes],
4196                 [cf_cv_struct_dirent64=no])
4197         ])
4198         test "$cf_cv_struct_dirent64" = yes && AC_DEFINE(HAVE_STRUCT_DIRENT64,1,[Define to 1 if we have struct dirent64])
4199         fi
4200 ])
4201 ])
4202 dnl ---------------------------------------------------------------------------
4203 dnl CF_LDFLAGS_STATIC version: 14 updated: 2021/01/02 17:09:14
4204 dnl -----------------
4205 dnl Check for compiler/linker flags used to temporarily force usage of static
4206 dnl libraries.  This depends on the compiler and platform.  Use this to help
4207 dnl ensure that the linker picks up a given library based on its position in
4208 dnl the list of linker options and libraries.
4209 AC_DEFUN([CF_LDFLAGS_STATIC],[
4210
4211 if test "$GCC" = yes ; then
4212         case "$cf_cv_system_name" in
4213         (OS/2*|os2*|aix[[4]]*|solaris2.1[[0-9]]|darwin*)
4214                 LDFLAGS_STATIC=
4215                 LDFLAGS_SHARED=
4216                 ;;
4217         (*)     # normally, except when broken
4218                 LDFLAGS_STATIC=-static
4219                 LDFLAGS_SHARED=-dynamic
4220                 ;;
4221         esac
4222 else
4223         case "$cf_cv_system_name" in
4224         (aix[[4-7]]*)   # from ld manpage
4225                 LDFLAGS_STATIC=-bstatic
4226                 LDFLAGS_SHARED=-bdynamic
4227                 ;;
4228         (hpux*)         # from ld manpage for hpux10.20, hpux11.11
4229                 # We could also use just "archive" and "shared".
4230                 LDFLAGS_STATIC=-Wl,-a,archive_shared
4231                 LDFLAGS_SHARED=-Wl,-a,shared_archive
4232                 ;;
4233         (irix*)         # from ld manpage IRIX64
4234                 LDFLAGS_STATIC=-Bstatic
4235                 LDFLAGS_SHARED=-Bdynamic
4236                 ;;
4237         (osf[[45]]*)    # from ld manpage osf4.0d, osf5.1
4238                 # alternative "-oldstyle_liblookup" (not in cc manpage)
4239                 LDFLAGS_STATIC=-noso
4240                 LDFLAGS_SHARED=-so_archive
4241                 ;;
4242         (solaris2*)
4243                 LDFLAGS_STATIC=-Bstatic
4244                 LDFLAGS_SHARED=-Bdynamic
4245                 ;;
4246         esac
4247 fi
4248
4249 if test -n "$LDFLAGS_STATIC" && test -n "$LDFLAGS_SHARED"
4250 then
4251         AC_MSG_CHECKING(if linker supports switching between static/dynamic)
4252
4253         rm -f libconftest.a
4254         cat >conftest.$ac_ext <<EOF
4255 #line __oline__ "configure"
4256 #include <stdio.h>
4257 int cf_ldflags_static(FILE *fp) { return fflush(fp); }
4258 EOF
4259         if AC_TRY_EVAL(ac_compile) ; then
4260                 ( $AR $ARFLAGS libconftest.a conftest.o ) 2>&AC_FD_CC 1>/dev/null
4261                 ( eval $RANLIB libconftest.a ) 2>&AC_FD_CC >/dev/null
4262         fi
4263         rm -f conftest.*
4264
4265         cf_save_LIBS="$LIBS"
4266
4267         LIBS="$LDFLAGS_STATIC -L`pwd` -lconftest $LDFLAGS_DYNAMIC $LIBS"
4268         AC_TRY_LINK([
4269 #line __oline__ "configure"
4270 #include <stdio.h>
4271 int cf_ldflags_static(FILE *fp);
4272 ],[
4273         return cf_ldflags_static(stdin);
4274 ],[
4275         # some linkers simply ignore the -dynamic
4276         case x`file "conftest$ac_exeext" 2>/dev/null` in
4277         (*static*)
4278                 cf_ldflags_static=no
4279                 ;;
4280         (*)
4281                 cf_ldflags_static=yes
4282                 ;;
4283         esac
4284 ],[cf_ldflags_static=no])
4285
4286         rm -f libconftest.*
4287         LIBS="$cf_save_LIBS"
4288
4289         AC_MSG_RESULT($cf_ldflags_static)
4290
4291         if test "$cf_ldflags_static" != yes
4292         then
4293                 LDFLAGS_STATIC=
4294                 LDFLAGS_SHARED=
4295         fi
4296 else
4297         LDFLAGS_STATIC=
4298         LDFLAGS_SHARED=
4299 fi
4300
4301 AC_SUBST(LDFLAGS_STATIC)
4302 AC_SUBST(LDFLAGS_SHARED)
4303 ])
4304 dnl ---------------------------------------------------------------------------
4305 dnl CF_LD_RPATH_OPT version: 9 updated: 2021/01/01 13:31:04
4306 dnl ---------------
4307 dnl For the given system and compiler, find the compiler flags to pass to the
4308 dnl loader to use the "rpath" feature.
4309 AC_DEFUN([CF_LD_RPATH_OPT],
4310 [
4311 AC_REQUIRE([CF_CHECK_CACHE])
4312
4313 LD_RPATH_OPT=
4314 if test "x$cf_cv_enable_rpath" != xno
4315 then
4316         AC_MSG_CHECKING(for an rpath option)
4317         case "$cf_cv_system_name" in
4318         (irix*)
4319                 if test "$GCC" = yes; then
4320                         LD_RPATH_OPT="-Wl,-rpath,"
4321                 else
4322                         LD_RPATH_OPT="-rpath "
4323                 fi
4324                 ;;
4325         (linux*|gnu*|k*bsd*-gnu|freebsd*)
4326                 LD_RPATH_OPT="-Wl,-rpath,"
4327                 ;;
4328         (openbsd[[2-9]].*|mirbsd*)
4329                 LD_RPATH_OPT="-Wl,-rpath,"
4330                 ;;
4331         (dragonfly*)
4332                 LD_RPATH_OPT="-rpath "
4333                 ;;
4334         (netbsd*)
4335                 LD_RPATH_OPT="-Wl,-rpath,"
4336                 ;;
4337         (osf*|mls+*)
4338                 LD_RPATH_OPT="-rpath "
4339                 ;;
4340         (solaris2*)
4341                 LD_RPATH_OPT="-R"
4342                 ;;
4343         (*)
4344                 ;;
4345         esac
4346         AC_MSG_RESULT($LD_RPATH_OPT)
4347
4348         case "x$LD_RPATH_OPT" in
4349         (x-R*)
4350                 AC_MSG_CHECKING(if we need a space after rpath option)
4351                 cf_save_LIBS="$LIBS"
4352                 CF_ADD_LIBS(${LD_RPATH_OPT}$libdir)
4353                 AC_TRY_LINK(, , cf_rpath_space=no, cf_rpath_space=yes)
4354                 LIBS="$cf_save_LIBS"
4355                 AC_MSG_RESULT($cf_rpath_space)
4356                 test "$cf_rpath_space" = yes && LD_RPATH_OPT="$LD_RPATH_OPT "
4357                 ;;
4358         esac
4359 fi
4360 ])dnl
4361 dnl ---------------------------------------------------------------------------
4362 dnl CF_LD_SEARCHPATH version: 4 updated: 2022/08/27 15:43:08
4363 dnl ----------------
4364 dnl Try to obtain the linker's search-path, for use in scripts.
4365 dnl
4366 dnl Ignore LD_LIBRARY_PATH, etc.
4367 AC_DEFUN([CF_LD_SEARCHPATH],[
4368 AC_CACHE_CHECK(for linker search path,cf_cv_ld_searchpath,[
4369
4370 if test "$cross_compiling" != yes ; then
4371
4372 # GNU binutils' ld does not involve permissions which may stop ldconfig.
4373 cf_pathlist=`${LD:-ld} --verbose 2>/dev/null | grep SEARCH_DIR | sed -e 's,SEARCH_DIR[[("=]][[("=]]*,,g' -e 's/"[[)]];//gp' | sort -u`
4374
4375 # The -NX options tell newer versions of Linux ldconfig to not attempt to
4376 # update the cache, which makes it run faster.
4377 test -z "$cf_pathlist" && \
4378         cf_pathlist=`(ldconfig -NX -v) 2>/dev/null | sed -e '/^[[       ]]/d' -e 's/:$//' | sort -u`
4379
4380 test -z "$cf_pathlist" &&
4381         cf_pathlist=`(ldconfig -v) 2>/dev/null | sed -n -e '/^[[        ]]/d' -e 's/:$//p' | sort -u`
4382
4383 # This works with OpenBSD 6.5, which lists only filenames
4384 test -z "$cf_pathlist" &&
4385         cf_pathlist=`(ldconfig -v) 2>/dev/null | sed -n -e 's,^Adding \(.*\)/.*[$],\1,p' | sort -u`
4386
4387 if test -z "$cf_pathlist"
4388 then
4389         # dyld default path with MacOS
4390         if test -f /usr/bin/otool && test "x`uname -s`" = xDarwin
4391         then
4392                 # do this to bypass check
4393                 cf_cv_ld_searchpath='$HOME/lib'
4394                 cf_pathlist="/usr/local/lib /lib /usr/lib"
4395         fi
4396 fi
4397
4398 if test -z "$cf_pathlist"
4399 then
4400         # Solaris is "SunOS"
4401         if test -f /usr/bin/isainfo && test "x`uname -s`" = xSunOS
4402         then
4403                 case x`(isainfo -b)` in
4404                 (x64)
4405                         cf_pathlist="$cf_pathlist /lib/64 /usr/lib/64"
4406                         ;;
4407                 (x32)
4408                         test -d /usr/ccs/lib && cf_pathlist="$cf_pathlist /usr/ccs/lib"
4409                         cf_pathlist="$cf_pathlist /lib /usr/lib"
4410                         ;;
4411                 (*)
4412                         AC_MSG_WARN(problem with Solaris architecture)
4413                         ;;
4414                 esac
4415         fi
4416 fi
4417
4418 if test -z "$cf_pathlist"
4419 then
4420         # HP-UX
4421         if test x"`uname -s`" = xHP-UX
4422         then
4423                 case x`getconf LONG_BIT` in
4424                 (x64)
4425                         cf_pathlist="/usr/lib/hpux64"
4426                         ;;
4427                 (x*)
4428                         cf_pathlist="/usr/lib/hpux32"
4429                         ;;
4430                 esac
4431         fi
4432 fi
4433
4434 fi
4435
4436 # If nothing else, assume it is conventional
4437 test -z "$cf_pathlist" && cf_pathlist="/usr/lib /lib"
4438
4439 # Finally, check that this is only directories
4440 for cf_path in [$]0 $cf_pathlist
4441 do
4442         if test -d "$cf_path"; then
4443                 test -n "$cf_cv_ld_searchpath" && cf_cv_ld_searchpath="${cf_cv_ld_searchpath} "
4444                 cf_cv_ld_searchpath="${cf_cv_ld_searchpath}${cf_path}"
4445         fi
4446 done
4447
4448 # Ensure that it is nonempty
4449 test -z "$cf_cv_ld_searchpath" && cf_cv_ld_searchpath=/usr/lib
4450 ])
4451
4452 LD_SEARCHPATH=`echo "$cf_cv_ld_searchpath"|sed -e 's/ /|/g'`
4453 AC_SUBST(LD_SEARCHPATH)
4454 ])dnl
4455 dnl ---------------------------------------------------------------------------
4456 dnl CF_LIBRARY_PATH version: 11 updated: 2021/01/01 13:31:04
4457 dnl ---------------
4458 dnl Construct a search-list of directories for a nonstandard library-file
4459 dnl
4460 dnl Parameters
4461 dnl     $1 = the variable to return as result
4462 dnl     $2 = the package name
4463 AC_DEFUN([CF_LIBRARY_PATH],
4464 [
4465 $1=
4466 cf_library_path_list=""
4467 if test -n "${LDFLAGS}${LIBS}" ; then
4468         for cf_library_path in $LDFLAGS $LIBS
4469         do
4470                 case "$cf_library_path" in
4471                 (-L*)
4472                         cf_library_path=`echo ".$cf_library_path" |sed -e 's/^...//' -e 's,/lib$,,'`
4473                         CF_ADD_SUBDIR_PATH($1,$2,lib,$cf_library_path,NONE)
4474                         cf_library_path_list="$cf_library_path_list [$]$1"
4475                         ;;
4476                 esac
4477         done
4478 fi
4479
4480 CF_SUBDIR_PATH($1,$2,lib)
4481
4482 $1="$cf_library_path_list [$]$1"
4483 ])dnl
4484 dnl ---------------------------------------------------------------------------
4485 dnl CF_LIBTOOL_VERSION version: 1 updated: 2013/04/06 18:03:09
4486 dnl ------------------
4487 AC_DEFUN([CF_LIBTOOL_VERSION],[
4488 if test -n "$LIBTOOL" && test "$LIBTOOL" != none
4489 then
4490         cf_cv_libtool_version=`$LIBTOOL --version 2>&1 | sed -e '/^$/d' |sed -e '2,$d' -e 's/([[^)]]*)//g' -e 's/^[[^1-9]]*//' -e 's/[[^0-9.]].*//'`
4491 else
4492         cf_cv_libtool_version=
4493 fi
4494 test -z "$cf_cv_libtool_version" && unset cf_cv_libtool_version
4495 ])dnl
4496 dnl ---------------------------------------------------------------------------
4497 dnl CF_LIB_PREFIX version: 14 updated: 2021/01/01 13:31:04
4498 dnl -------------
4499 dnl Compute the library-prefix for the given host system
4500 dnl $1 = variable to set
4501 define([CF_LIB_PREFIX],
4502 [
4503         case "$cf_cv_system_name" in
4504         (OS/2*|os2*)
4505                 if test "$DFT_LWR_MODEL" = libtool; then
4506                         LIB_PREFIX='lib'
4507                 else
4508                         LIB_PREFIX=''
4509                 fi
4510                 ;;
4511         (*-msvc*)
4512                 LIB_PREFIX=''
4513                 ;;
4514         (*)     LIB_PREFIX='lib'
4515                 ;;
4516         esac
4517 ifelse($1,,,[$1=$LIB_PREFIX])
4518         AC_SUBST(LIB_PREFIX)
4519 ])dnl
4520 dnl ---------------------------------------------------------------------------
4521 dnl CF_LIB_RULES version: 99 updated: 2023/04/22 11:51:06
4522 dnl ------------
4523 dnl Append definitions and rules for the given models to the subdirectory
4524 dnl Makefiles, and the recursion rule for the top-level Makefile.  If the
4525 dnl subdirectory is a library-source directory, modify the Libs_To_Make list in
4526 dnl the corresponding makefile to list the models that we'll generate.
4527 dnl
4528 dnl For shared libraries, make a list of symbolic links to construct when
4529 dnl generating each library.  The convention used for Linux is the simplest
4530 dnl one:
4531 dnl     lib<name>.so    ->
4532 dnl     lib<name>.so.<major>    ->
4533 dnl     lib<name>.so.<maj>.<minor>
4534 dnl
4535 dnl Note: Libs_To_Make is mixed case, since it is not a pure autoconf variable.
4536 AC_DEFUN([CF_LIB_RULES],
4537 [AC_REQUIRE([AC_PROG_FGREP])dnl
4538 AC_REQUIRE([CF_MAKE_PHONY])dnl
4539
4540 cf_prefix=$LIB_PREFIX
4541 AC_REQUIRE([CF_SUBST_NCURSES_VERSION])
4542
4543 case "$cf_cv_shlib_version" in
4544 (cygdll|msysdll|mingw|msvcdll)
4545         TINFO_NAME=$TINFO_ARG_SUFFIX
4546         TINFO_SUFFIX=.dll
4547         ;;
4548 esac
4549
4550 if test -n "$TINFO_SUFFIX" ; then
4551         case "$TINFO_SUFFIX" in
4552         (tw*)
4553                 TINFO_NAME="${TINFO_NAME}tw${EXTRA_SUFFIX}"
4554                 TINFO_SUFFIX=`echo "$TINFO_SUFFIX" | sed 's/^tw'$EXTRA_SUFFIX'//'`
4555                 ;;
4556         (t*)
4557                 TINFO_NAME="${TINFO_NAME}t${EXTRA_SUFFIX}"
4558                 TINFO_SUFFIX=`echo "$TINFO_SUFFIX" | sed 's/^t'$EXTRA_SUFFIX'//'`
4559                 ;;
4560         (w*)
4561                 TINFO_NAME="${TINFO_NAME}w${EXTRA_SUFFIX}"
4562                 TINFO_SUFFIX=`echo "$TINFO_SUFFIX" | sed 's/^w'$EXTRA_SUFFIX'//'`
4563                 ;;
4564         esac
4565 fi
4566
4567 for cf_dir in $SRC_SUBDIRS
4568 do
4569         if test ! -d "$srcdir/$cf_dir" ; then
4570                 continue
4571         elif test -f "$srcdir/$cf_dir/modules" ; then
4572
4573                 SHARED_LIB=
4574                 Libs_To_Make=
4575                 cf_awk_program=
4576                 if test -n "${cf_cv_abi_default}" && test "x${cf_cv_abi_default}" != "x5"
4577                 then
4578                         cf_awk_program="$cf_awk_program\
4579 /deprecated in ABI${cf_cv_abi_default}/ { next; }\
4580 { sub(\"NCURSES([[WT]]+)?\", \"&${cf_cv_abi_default}\"); }\
4581 "
4582                 fi
4583
4584                 if test "x$WILDCARD_SYMS" = xno
4585                 then
4586                         cf_awk_program="$cf_awk_program\
4587 /[[     ]]_\\*;/ { skip=1; next; }\
4588 "
4589                 fi
4590
4591                 if test "x$cf_awk_program" != "x"
4592                 then
4593                         cat >>$cf_dir/Makefile <<CF_EOF
4594
4595 # Generated by CF_LIB_RULES
4596 resulting.map: $UNALTERED_SYMS
4597         $AWK 'BEGIN { skip = 1; last=""; } \
4598 $cf_awk_program \
4599 { if ( last != "" && ( skip == 0 || \[$]\[$]0 !~ /}/ ) ) { print last; }\
4600  skip = 0; last = \[$]\[$]0; } \
4601 END { print last; }' < "$UNALTERED_SYMS" >\[$]@
4602
4603 distclean::
4604         rm -f resulting.map
4605 CF_EOF
4606                 fi
4607
4608                 for cf_item in $cf_LIST_MODELS
4609                 do
4610                         CF_LIB_SUFFIX($cf_item,cf_suffix,cf_depsuf)
4611                         if test "$cf_dir" = "c++"
4612                         then
4613                                 CF_MAP_LIB_BASENAME(cf_libname,cxx)
4614                         else
4615                                 CF_MAP_LIB_BASENAME(cf_libname,$cf_dir)
4616                         fi
4617                         test -z "$cf_libname" && cf_libname="$cf_dir"
4618                         if test "$cf_item" = shared ; then
4619                                 if test -n "${LIB_SUFFIX}"
4620                                 then
4621                                         cf_shared_suffix=`echo "$cf_suffix" | sed 's/^'"${USE_LIB_SUFFIX}"'//'`
4622                                 else
4623                                         cf_shared_suffix="$cf_suffix"
4624                                 fi
4625                                 if test "$cf_cv_do_symlinks" = yes ; then
4626                                         cf_version_name=
4627
4628                                         case "$cf_cv_shlib_version" in
4629                                         (rel)
4630                                                 cf_version_name=REL_VERSION
4631                                                 ;;
4632                                         (abi)
4633                                                 cf_version_name=ABI_VERSION
4634                                                 ;;
4635                                         esac
4636
4637                                         if test -n "$cf_version_name"
4638                                         then
4639                                                 case "$cf_cv_system_name" in
4640                                                 (darwin*)
4641                                                         # "w", etc?
4642                                                         cf_suffix="${USE_LIB_SUFFIX}"'.${'$cf_version_name'}'"$cf_shared_suffix"
4643                                                         ;;
4644                                                 (*)
4645                                                         cf_suffix="$cf_suffix"'.${'$cf_version_name'}'
4646                                                         ;;
4647                                                 esac
4648                                         fi
4649                                         if test -n "${USE_LIB_SUFFIX}"
4650                                         then
4651                                                 cf_shared_suffix=`echo "$cf_suffix" | sed 's/^'"${USE_LIB_SUFFIX}"'//'`
4652                                         else
4653                                                 cf_shared_suffix="$cf_suffix"
4654                                         fi
4655                                 fi
4656                                 # cygwin needs import library, and has unique naming convention
4657                                 # use autodetected ${cf_prefix} for import lib and static lib, but
4658                                 # use 'cyg' prefix for shared lib.
4659                                 case "$cf_cv_shlib_version" in
4660                                 (cygdll)
4661                                         cf_cygsuf=`echo "$cf_suffix" | sed -e 's/\.dll/\${ABI_VERSION}.dll/'`
4662                                         cf_add_lib="../lib/cyg${cf_libname}${cf_cygsuf}"
4663                                         ;;
4664                                 (msysdll)
4665                                         cf_cygsuf=`echo "$cf_suffix" | sed -e 's/\.dll/\${ABI_VERSION}.dll/'`
4666                                         cf_add_lib="../lib/msys-${cf_libname}${cf_cygsuf}"
4667                                         ;;
4668                                 (mingw)
4669                                         cf_cygsuf=`echo "$cf_suffix" | sed -e 's/\.dll/\${ABI_VERSION}.dll/'`
4670                                         cf_add_lib="../lib/lib${cf_libname}${cf_cygsuf}"
4671                                         ;;
4672                                 (msvcdll)
4673                                         cf_cygsuf=`echo "$cf_suffix" | sed -e 's/\.dll/\${ABI_VERSION}.dll/'`
4674                                         cf_add_lib="../lib/${cf_libname}${cf_cygsuf}"
4675                                         ;;
4676                                 (*)
4677                                         cf_add_lib=
4678                                         ;;
4679                                 esac
4680                                 if test -n "$cf_add_lib"
4681                                 then
4682                                         Libs_To_Make="$Libs_To_Make $cf_add_lib"
4683                                         continue
4684                                 fi
4685                         fi
4686                         cf_add_lib="../lib/${cf_prefix}${cf_libname}${cf_suffix}"
4687                         Libs_To_Make="$Libs_To_Make $cf_add_lib"
4688                 done
4689
4690                 if test "$cf_dir" = ncurses ; then
4691                         cf_subsets="$LIB_SUBSETS"
4692                         cf_r_parts="$cf_subsets"
4693                         cf_liblist="$Libs_To_Make"
4694
4695                         while test -n "$cf_r_parts"
4696                         do
4697                                 cf_l_parts=`echo "$cf_r_parts" |sed -e 's/ .*$//'`
4698                                 cf_r_parts=`echo "$cf_r_parts" |sed -e 's/^[[^ ]]* //'`
4699                                 if test "$cf_l_parts" != "$cf_r_parts" ; then
4700                                         cf_add_lib=
4701                                         case "$cf_l_parts" in
4702                                         (*termlib*)
4703                                                 cf_add_lib=`echo "$cf_liblist" |sed -e s%${LIB_NAME}${USE_LIB_SUFFIX}%${TINFO_LIB_SUFFIX}%g`
4704                                                 ;;
4705                                         (*ticlib*)
4706                                                 cf_add_lib=`echo "$cf_liblist" |sed -e s%${LIB_NAME}${USE_LIB_SUFFIX}%${TICS_LIB_SUFFIX}%g`
4707                                                 ;;
4708                                         (*)
4709                                                 break
4710                                                 ;;
4711                                         esac
4712                                         if test -n "$cf_add_lib"; then
4713                                                 Libs_To_Make="$cf_add_lib $Libs_To_Make"
4714                                         fi
4715                                 else
4716                                         break
4717                                 fi
4718                         done
4719                 else
4720                         cf_subsets=`echo "$LIB_SUBSETS" | sed -e 's/^termlib.* //'`
4721                 fi
4722
4723                 if test "$cf_dir" = c++; then
4724                         if test "x$with_shared_cxx" != xyes && test -n "$cf_shared_suffix"; then
4725                                 cf_list=
4726                                 for cf_item in $Libs_To_Make
4727                                 do
4728                                         case "$cf_item" in
4729                                         (*.a)
4730                                                 ;;
4731                                         (*)
4732                                                 cf_item=`echo "$cf_item" | sed -e "s,"$cf_shared_suffix",.a,"`
4733                                                 ;;
4734                                         esac
4735                                         for cf_test in $cf_list
4736                                         do
4737                                                 if test "$cf_test" = "$cf_item"
4738                                                 then
4739                                                         cf_LIST_MODELS=`echo "$cf_LIST_MODELS" | sed -e 's/normal//'`
4740                                                         cf_item=
4741                                                         break
4742                                                 fi
4743                                         done
4744                                         test -n "$cf_item" && cf_list="$cf_list $cf_item"
4745                                 done
4746                                 Libs_To_Make="$cf_list"
4747                         fi
4748                 fi
4749
4750                 sed -e "s%@Libs_To_Make@%$Libs_To_Make%" \
4751                     -e "s%@SHARED_LIB@%$SHARED_LIB%" \
4752                         "$cf_dir/Makefile" >$cf_dir/Makefile.out
4753                 mv "$cf_dir/Makefile.out" "$cf_dir/Makefile"
4754
4755                 $AWK -f "$srcdir/mk-0th.awk" \
4756                         libname="${cf_dir}${LIB_SUFFIX}" subsets="$LIB_SUBSETS" ticlib="$TICS_LIB_SUFFIX" termlib="$TINFO_LIB_SUFFIX" \
4757                         "$srcdir/$cf_dir/modules" >>$cf_dir/Makefile
4758
4759                 for cf_subset in $cf_subsets
4760                 do
4761                         cf_subdirs=
4762                         for cf_item in $cf_LIST_MODELS
4763                         do
4764
4765                         echo "Appending rules for ${cf_item} model (${cf_dir}: ${cf_subset})"
4766                         CF_UPPER(cf_ITEM,$cf_item)
4767
4768                         CXX_MODEL=$cf_ITEM
4769                         if test "$CXX_MODEL" = SHARED; then
4770                                 case "$cf_cv_shlib_version" in
4771                                 (cygdll|msysdll|mingw|msvcdll)
4772                                         test "x$with_shared_cxx" = xno && CF_VERBOSE(overriding CXX_MODEL to SHARED)
4773                                         with_shared_cxx=yes
4774                                         ;;
4775                                 (*)
4776                                         test "x$with_shared_cxx" = xno && CXX_MODEL=NORMAL
4777                                         ;;
4778                                 esac
4779                         fi
4780
4781                         CF_LIB_SUFFIX($cf_item,cf_suffix,cf_depsuf)
4782                         CF_OBJ_SUBDIR($cf_item,cf_subdir)
4783
4784                         # Test for case where we build libtinfo with a different name.
4785                         cf_libname=$cf_dir
4786                         if test "$cf_dir" = ncurses ; then
4787                                 case "$cf_subset" in
4788                                 (*base*)
4789                                         cf_libname=${cf_libname}$USE_LIB_SUFFIX
4790                                         ;;
4791                                 (*termlib*)
4792                                         cf_libname=$TINFO_LIB_SUFFIX
4793                                         ;;
4794                                 (ticlib*)
4795                                         cf_libname=$TICS_LIB_SUFFIX
4796                                         ;;
4797                                 esac
4798                         elif test "$cf_dir" = c++ ; then
4799                                 CF_MAP_LIB_BASENAME(cf_libname,cxx)
4800                                 cf_libname=${cf_libname}$USE_LIB_SUFFIX
4801                         else
4802                                 CF_MAP_LIB_BASENAME(cf_libname,$cf_dir)
4803                                 cf_libname=${cf_libname}$USE_LIB_SUFFIX
4804                         fi
4805                         if test -n "${USE_ARG_SUFFIX}" ; then
4806                                 # undo $USE_LIB_SUFFIX add-on in CF_LIB_SUFFIX
4807                                 cf_suffix=`echo "$cf_suffix" |sed -e "s%^${USE_LIB_SUFFIX}%%"`
4808                         fi
4809
4810                         # These dependencies really are for development, not
4811                         # builds, but they are useful in porting, too.
4812                         cf_depend="../include/ncurses_cfg.h"
4813                         if test "$srcdir" = "."; then
4814                                 cf_reldir="."
4815                         else
4816                                 cf_reldir="\${srcdir}"
4817                         fi
4818
4819                         if test -f "$srcdir/$cf_dir/$cf_dir.priv.h" ; then
4820                                 cf_depend="$cf_depend $cf_reldir/$cf_dir.priv.h"
4821                         elif test -f "$srcdir/$cf_dir/curses.priv.h" ; then
4822                                 cf_depend="$cf_depend $cf_reldir/curses.priv.h"
4823                         fi
4824
4825                         cf_dir_suffix=
4826                         old_cf_suffix="$cf_suffix"
4827                         if test "$cf_cv_shlib_version_infix" = yes ; then
4828                         if test -n "$USE_LIB_SUFFIX" ; then
4829                                 case "$USE_LIB_SUFFIX" in
4830                                 (tw*)
4831                                         cf_libname=`echo "$cf_libname" | sed 's/tw'$EXTRA_SUFFIX'$//'`
4832                                         cf_suffix=`echo "$cf_suffix" | sed 's/^tw'$EXTRA_SUFFIX'//'`
4833                                         cf_dir_suffix=tw$EXTRA_SUFFIX
4834                                         ;;
4835                                 (t*)
4836                                         cf_libname=`echo "$cf_libname" | sed 's/t'$EXTRA_SUFFIX'$//'`
4837                                         cf_suffix=`echo "$cf_suffix" | sed 's/^t'$EXTRA_SUFFIX'//'`
4838                                         cf_dir_suffix=t$EXTRA_SUFFIX
4839                                         ;;
4840                                 (w*)
4841                                         cf_libname=`echo "$cf_libname" | sed 's/w'$EXTRA_SUFFIX'$//'`
4842                                         cf_suffix=`echo "$cf_suffix" | sed 's/^w'$EXTRA_SUFFIX'//'`
4843                                         cf_dir_suffix=w$EXTRA_SUFFIX
4844                                         ;;
4845                                 (*)
4846                                         cf_libname=`echo "$cf_libname" | sed 's/'$EXTRA_SUFFIX'$//'`
4847                                         cf_suffix=`echo "$cf_suffix" | sed 's/^'$EXTRA_SUFFIX'//'`
4848                                         cf_dir_suffix=$EXTRA_SUFFIX
4849                                         ;;
4850                                 esac
4851                         fi
4852                         fi
4853
4854                         $AWK -f "$srcdir/mk-1st.awk" \
4855                                 name=${cf_libname}${cf_dir_suffix} \
4856                                 traces=$LIB_TRACING \
4857                                 MODEL=$cf_ITEM \
4858                                 CXX_MODEL=$CXX_MODEL \
4859                                 LIB_SUFFIX=$LIB_SUFFIX \
4860                                 USE_LIB_SUFFIX=$USE_LIB_SUFFIX \
4861                                 make_phony="${cf_cv_make_PHONY:-no}" \
4862                                 model=$cf_subdir \
4863                                 prefix=$cf_prefix \
4864                                 suffix=$cf_suffix \
4865                                 subset=$cf_subset \
4866                                 driver=$cf_cv_term_driver \
4867                                 SymLink="$LN_S" \
4868                                 TermlibRoot=$TINFO_NAME \
4869                                 TermlibSuffix=$TINFO_SUFFIX \
4870                                 ShlibVer=$cf_cv_shlib_version \
4871                                 ShlibVerInfix=$cf_cv_shlib_version_infix \
4872                                 ReLink=${cf_cv_do_relink:-no} \
4873                                 ReRanlib=${cf_cv_do_reranlib:-yes} \
4874                                 DoLinks=$cf_cv_do_symlinks \
4875                                 rmSoLocs=$cf_cv_rm_so_locs \
4876                                 ldconfig="$LDCONFIG" \
4877                                 overwrite=$WITH_OVERWRITE \
4878                                 depend="$cf_depend" \
4879                                 host="$host" \
4880                                 libtool_version="$LIBTOOL_VERSION" \
4881                                 "$srcdir/$cf_dir/modules" >>$cf_dir/Makefile
4882
4883                         cf_suffix="$old_cf_suffix"
4884
4885                         for cf_subdir2 in $cf_subdirs lib
4886                         do
4887                                 test "$cf_subdir" = "$cf_subdir2" && break
4888                         done
4889                         test "${cf_subset}.${cf_subdir2}" != "${cf_subset}.${cf_subdir}" && \
4890                         $AWK -f "$srcdir/mk-2nd.awk" \
4891                                 name=$cf_dir \
4892                                 traces=$LIB_TRACING \
4893                                 MODEL=$cf_ITEM \
4894                                 model=$cf_subdir \
4895                                 subset=$cf_subset \
4896                                 srcdir=$srcdir \
4897                                 echo=$WITH_ECHO \
4898                                 crenames=$cf_cv_prog_CC_c_o \
4899                                 cxxrenames=$cf_cv_prog_CXX_c_o \
4900                                 "$srcdir/$cf_dir/modules" >>$cf_dir/Makefile
4901                         cf_subdirs="$cf_subdirs $cf_subdir"
4902                         done
4903                 done
4904         fi
4905
4906         echo '  ( cd '$cf_dir' && ${MAKE} ${TOP_MFLAGS} [$]@ )' >>Makefile
4907 done
4908
4909 echo >> Makefile
4910 echo '# generated by CF_LIB_RULES' >> Makefile
4911
4912 if test "x$cf_cv_make_PHONY" = xyes ; then
4913         cat >> Makefile <<-CF_EOF
4914
4915         .PHONY :        libs
4916         .PHONY :        lintlib
4917         .PHONY :        install.includes
4918         .PHONY :        uninstall.includes
4919         .PHONY :        install.libs
4920         .PHONY :        uninstall.libs
4921 CF_EOF
4922 fi
4923
4924 for cf_dir in $SRC_SUBDIRS
4925 do
4926         if test ! -d "$srcdir/$cf_dir" ; then
4927                 continue
4928         fi
4929
4930         if test -f "$cf_dir/Makefile" ; then
4931                 case "$cf_dir" in
4932                 (Ada95)
4933                         echo 'libs \' >> Makefile
4934                         echo 'install.libs \' >> Makefile
4935                         echo 'uninstall.libs ::' >> Makefile
4936                         echo '  ( cd '$cf_dir' && ${MAKE} ${TOP_MFLAGS} [$]@ )' >> Makefile
4937                         ;;
4938                 esac
4939         fi
4940
4941         if test -f "$srcdir/$cf_dir/modules" ; then
4942
4943                 if test "x$cf_cv_make_PHONY" = xyes ; then
4944                         cat >> Makefile <<-CF_EOF
4945
4946                         .PHONY :        install.$cf_dir
4947                         .PHONY :        uninstall.$cf_dir
4948 CF_EOF
4949                 fi
4950
4951                 echo >> Makefile
4952                 if test -f "$srcdir/$cf_dir/headers" ; then
4953 cat >> Makefile <<CF_EOF
4954 install.includes \\
4955 uninstall.includes \\
4956 CF_EOF
4957                 fi
4958
4959 cat >> Makefile <<CF_EOF
4960 lint \\
4961 libs \\
4962 lintlib \\
4963 install.libs \\
4964 uninstall.libs \\
4965 install.$cf_dir \\
4966 uninstall.$cf_dir ::
4967         ( cd "$cf_dir" && \${MAKE} \${TOP_MFLAGS} \[$]@ )
4968 CF_EOF
4969         elif test -f "$srcdir/$cf_dir/headers" ; then
4970 cat >> Makefile <<CF_EOF
4971
4972 libs \\
4973 install.libs \\
4974 uninstall.libs \\
4975 install.includes \\
4976 uninstall.includes ::
4977         ( cd "$cf_dir" && \${MAKE} \${TOP_MFLAGS} \[$]@ )
4978 CF_EOF
4979 fi
4980 done
4981
4982 if test "x$cf_cv_make_PHONY" = xyes ; then
4983         cat >> Makefile <<-CF_EOF
4984
4985         .PHONY :        install.data
4986         .PHONY :        uninstall.data
4987 CF_EOF
4988 fi
4989
4990 if test "x$cf_with_db_install" = xyes; then
4991 cat >> Makefile <<CF_EOF
4992
4993 install.libs uninstall.libs \\
4994 install.data uninstall.data ::
4995 $MAKE_TERMINFO  ( cd misc && \${MAKE} \${TOP_MFLAGS} \[$]@ )
4996 CF_EOF
4997 else
4998 cat >> Makefile <<CF_EOF
4999
5000 install.libs uninstall.libs ::
5001         ( cd misc && \${MAKE} \${TOP_MFLAGS} \[$]@ )
5002 CF_EOF
5003 fi
5004
5005 if test "x$cf_with_manpages" = xyes; then
5006
5007 if test "x$cf_cv_make_PHONY" = xyes ; then
5008         cat >> Makefile <<-CF_EOF
5009
5010         .PHONY :        install.man
5011         .PHONY :        uninstall.man
5012 CF_EOF
5013 fi
5014
5015 cat >> Makefile <<CF_EOF
5016
5017 install.man \\
5018 uninstall.man ::
5019         ( cd man && \${MAKE} \${TOP_MFLAGS} \[$]@ )
5020 CF_EOF
5021 fi
5022
5023 cat >> Makefile <<CF_EOF
5024
5025 distclean ::
5026         rm -f config.cache config.log config.status Makefile include/ncurses_cfg.h
5027         rm -f headers.sh headers.sed mk_shared_lib.sh
5028         rm -f edit_man.* man_alias.*
5029         rm -rf \${DIRS_TO_MAKE}
5030 CF_EOF
5031
5032 dnl If we're installing into a subdirectory of /usr/include, etc., we should
5033 dnl prepend the subdirectory's name to the "#include" paths.  It won't hurt
5034 dnl anything, and will make it more standardized.  It's awkward to decide this
5035 dnl at configuration because of quoting, so we'll simply make all headers
5036 dnl installed via a script that can do the right thing.
5037
5038 rm -f headers.sed headers.sh
5039
5040 dnl ( generating this script makes the makefiles a little tidier :-)
5041 echo creating headers.sh
5042 cat >headers.sh <<CF_EOF
5043 #! $SHELL
5044 # This shell script is generated by the 'configure' script.  It is invoked in a
5045 # subdirectory of the build tree.  It generates a sed-script in the parent
5046 # directory that is used to adjust includes for header files that reside in a
5047 # subdirectory of /usr/include, etc.
5048 PRG=""
5049 while test \[$]# != 3
5050 do
5051 PRG="\$PRG \[$]1"; shift
5052 done
5053 DST=\[$]1
5054 REF=\[$]2
5055 SRC=\[$]3
5056 TMPSRC=\${TMPDIR:-/tmp}/\`basename \$SRC\`\$\$
5057 TMPSED=\${TMPDIR:-/tmp}/headers.sed\$\$
5058 echo installing \$SRC in \$DST
5059 CF_EOF
5060
5061 if test "$WITH_CURSES_H" = yes; then
5062         cat >>headers.sh <<CF_EOF
5063 case \$DST in
5064 (/*/include/*)
5065         END=\`basename \$DST\`
5066         for i in \`cat \$REF/../*/headers |${FGREP-fgrep} -v "#"\`
5067         do
5068                 NAME=\`basename \$i\`
5069                 echo "s/<\$NAME>/<\$END\/\$NAME>/" >> \$TMPSED
5070         done
5071         ;;
5072 (*)
5073         echo "" >> \$TMPSED
5074         ;;
5075 esac
5076 CF_EOF
5077
5078 else
5079         cat >>headers.sh <<CF_EOF
5080 case \$DST in
5081 (/*/include/*)
5082         END=\`basename \$DST\`
5083         for i in \`cat \$REF/../*/headers |${FGREP-fgrep} -v "#"\`
5084         do
5085                 NAME=\`basename \$i\`
5086                 if test "\$NAME" = "curses.h"
5087                 then
5088                         echo "s/<curses.h>/<ncurses.h>/" >> \$TMPSED
5089                         NAME=ncurses.h
5090                 fi
5091                 echo "s/<\$NAME>/<\$END\/\$NAME>/" >> \$TMPSED
5092         done
5093         ;;
5094 (*)
5095         echo "s/<curses.h>/<ncurses.h>/" >> \$TMPSED
5096         ;;
5097 esac
5098 CF_EOF
5099 fi
5100 cat >>headers.sh <<CF_EOF
5101 rm -f \$TMPSRC
5102 sed -f \$TMPSED \$SRC > \$TMPSRC
5103 NAME=\`basename \$SRC\`
5104 CF_EOF
5105 if test "$WITH_CURSES_H" != yes; then
5106         cat >>headers.sh <<CF_EOF
5107 test "\$NAME" = "curses.h" && NAME=ncurses.h
5108 CF_EOF
5109 fi
5110 cat >>headers.sh <<CF_EOF
5111 # Just in case someone gzip'd manpages, remove the conflicting copy.
5112 test -f \$DST/\$NAME.gz && rm -f \$DST/\$NAME.gz
5113
5114 eval \$PRG \$TMPSRC \$DST/\$NAME
5115 rm -f \$TMPSRC \$TMPSED
5116 CF_EOF
5117
5118 chmod 0755 headers.sh
5119
5120 for cf_dir in $SRC_SUBDIRS
5121 do
5122         if test ! -d "$srcdir/$cf_dir" ; then
5123                 continue
5124         fi
5125
5126         if test -f "$srcdir/$cf_dir/headers" ; then
5127                 $AWK -f "$srcdir/mk-hdr.awk" \
5128                         subset="$LIB_SUBSETS" \
5129                         compat="$WITH_CURSES_H" \
5130                         "$srcdir/$cf_dir/headers" >>$cf_dir/Makefile
5131         fi
5132
5133         if test -f "$srcdir/$cf_dir/modules" ; then
5134                 if test "$cf_dir" != "c++" ; then
5135                         if test "x$cf_cv_make_PHONY" = xyes ; then
5136                                 cat >> $cf_dir/Makefile <<-CF_EOF
5137
5138                                 .PHONY :        depend
5139 CF_EOF
5140                         fi
5141
5142                         cat >>$cf_dir/Makefile <<"CF_EOF"
5143 depend : ${AUTO_SRC}
5144         makedepend -- ${CPPFLAGS} -- ${C_SRC}
5145
5146 # DO NOT DELETE THIS LINE -- make depend depends on it.
5147 CF_EOF
5148                 fi
5149         fi
5150 done
5151 AC_SUBST(Libs_To_Make)
5152 ])dnl
5153 dnl ---------------------------------------------------------------------------
5154 dnl CF_LIB_SONAME version: 9 updated: 2021/01/04 18:48:01
5155 dnl -------------
5156 dnl Find the and soname for the given shared library.  Set the cache variable
5157 dnl cf_cv_$3_soname to this, unless it is not found.  Then set the cache
5158 dnl variable to "unknown".
5159 dnl
5160 dnl $1 = headers
5161 dnl $2 = code
5162 dnl $3 = library name
5163 AC_DEFUN([CF_LIB_SONAME],
5164 [AC_REQUIRE([AC_PROG_FGREP])dnl
5165
5166 AC_CACHE_CHECK(for soname of $3 library,cf_cv_$3_soname,[
5167
5168 cf_cv_$3_soname=unknown
5169 if test "$cross_compiling" != yes ; then
5170 cat >conftest.$ac_ext <<CF_EOF
5171 $1
5172 int main(void)
5173 {
5174 $2
5175         ${cf_cv_main_return:-return}(0);
5176 }
5177 CF_EOF
5178 cf_save_LIBS="$LIBS"
5179         CF_ADD_LIB($3)
5180         if AC_TRY_EVAL(ac_compile) ; then
5181                 if AC_TRY_EVAL(ac_link) ; then
5182                         cf_cv_$3_soname="`ldd \"conftest$ac_exeext\" 2>/dev/null | sed -e 's,^.*/,,' -e 's, .*$,,' | ${FGREP-fgrep} lib$3.`"
5183                         test -z "$cf_cv_$3_soname" && cf_cv_$3_soname=unknown
5184                 fi
5185         fi
5186 rm -rf ./conftest*
5187 LIBS="$cf_save_LIBS"
5188 fi
5189 ])
5190 ])
5191 dnl ---------------------------------------------------------------------------
5192 dnl CF_LIB_SUFFIX version: 28 updated: 2021/01/01 16:53:59
5193 dnl -------------
5194 dnl Compute the library file-suffix from the given model name
5195 dnl $1 = model name
5196 dnl $2 = variable to set (the nominal library suffix)
5197 dnl $3 = dependency variable to set (actual filename)
5198 dnl The variable $LIB_SUFFIX, if set, prepends the variable to set.
5199 AC_DEFUN([CF_LIB_SUFFIX],
5200 [
5201         case X$1 in
5202         (Xlibtool)
5203                 $2='.la'
5204                 $3=[$]$2
5205                 ;;
5206         (Xdebug)
5207                 case "$cf_cv_system_name" in
5208                 (*-msvc*)
5209                         $2='_g.lib'
5210                         ;;
5211                 (*)
5212                         $2='_g.a'
5213                         ;;
5214                 esac
5215                 $3=[$]$2
5216                 ;;
5217         (Xprofile)
5218                 case "$cf_cv_system_name" in
5219                 (*-msvc*)
5220                         $2='_p.lib'
5221                         ;;
5222                 (*)
5223                         $2='_p.a'
5224                         ;;
5225                 esac
5226                 $3=[$]$2
5227                 ;;
5228         (Xshared)
5229                 case "$cf_cv_system_name" in
5230                 (aix[[5-7]]*)
5231                         $2='.so'
5232                         $3=[$]$2
5233                         ;;
5234                 (*-msvc*)
5235                         $2='.dll'
5236                         $3='.dll.lib'
5237                         ;;
5238                 (cygwin*|msys*|mingw*)
5239                         $2='.dll'
5240                         $3='.dll.a'
5241                         ;;
5242                 (darwin*)
5243                         $2='.dylib'
5244                         $3=[$]$2
5245                         ;;
5246                 (hpux*)
5247                         case "$target" in
5248                         (ia64*)
5249                                 $2='.so'
5250                                 $3=[$]$2
5251                                 ;;
5252                         (*)
5253                                 $2='.sl'
5254                                 $3=[$]$2
5255                                 ;;
5256                         esac
5257                         ;;
5258                 (*)
5259                         $2='.so'
5260                         $3=[$]$2
5261                         ;;
5262                 esac
5263                 ;;
5264         (*)
5265                 case "$target" in
5266                 (*-msvc*)
5267                         $2='.lib'
5268                         ;;
5269                 (*)
5270                         $2='.a'
5271                         ;;
5272                 esac
5273                 $3=[$]$2
5274                 ;;
5275         esac
5276         if test -n "${LIB_SUFFIX}${EXTRA_SUFFIX}"
5277         then
5278                 $2="${LIB_SUFFIX}${EXTRA_SUFFIX}[$]{$2}"
5279                 $3="${LIB_SUFFIX}${EXTRA_SUFFIX}[$]{$3}"
5280         fi
5281 ])dnl
5282 dnl ---------------------------------------------------------------------------
5283 dnl CF_LIB_TYPE version: 5 updated: 2015/04/17 21:13:04
5284 dnl -----------
5285 dnl Compute the string to append to -library from the given model name
5286 dnl $1 = model name
5287 dnl $2 = variable to set
5288 dnl The variable $LIB_SUFFIX, if set, prepends the variable to set.
5289 AC_DEFUN([CF_LIB_TYPE],
5290 [
5291         case $1 in
5292         (libtool) $2=''   ;;
5293         (normal)  $2=''   ;;
5294         (debug)   $2='_g' ;;
5295         (profile) $2='_p' ;;
5296         (shared)  $2=''   ;;
5297         esac
5298         test -n "$LIB_SUFFIX" && $2="${LIB_SUFFIX}[$]{$2}"
5299 ])dnl
5300 dnl ---------------------------------------------------------------------------
5301 dnl CF_LINK_DATAONLY version: 13 updated: 2020/02/08 15:59:30
5302 dnl ----------------
5303 dnl Some systems have a non-ANSI linker that doesn't pull in modules that have
5304 dnl only data (i.e., no functions), for example NeXT.  On those systems we'll
5305 dnl have to provide wrappers for global tables to ensure they're linked
5306 dnl properly.
5307 AC_DEFUN([CF_LINK_DATAONLY],
5308 [
5309 AC_MSG_CHECKING([if data-only library module links])
5310 AC_CACHE_VAL(cf_cv_link_dataonly,[
5311         rm -f conftest.a
5312         cat >conftest.$ac_ext <<EOF
5313 #line __oline__ "configure"
5314 int     testdata[[3]] = { 123, 456, 789 };
5315 EOF
5316         if AC_TRY_EVAL(ac_compile) ; then
5317                 mv conftest.o data.o && \
5318                 ( $AR $ARFLAGS conftest.a data.o ) 2>&AC_FD_CC 1>/dev/null
5319         fi
5320         rm -f conftest.$ac_ext data.o
5321         cat >conftest.$ac_ext <<EOF
5322 #line __oline__ "configure"
5323 int     testfunc(void)
5324 {
5325 #if defined(NeXT)
5326         ${cf_cv_main_return:-return}(1);        /* I'm told this linker is broken */
5327 #else
5328         extern int testdata[[3]];
5329         return testdata[[0]] == 123
5330            &&  testdata[[1]] == 456
5331            &&  testdata[[2]] == 789;
5332 #endif
5333 }
5334 EOF
5335         if AC_TRY_EVAL(ac_compile); then
5336                 mv conftest.o func.o && \
5337                 ( $AR $ARFLAGS conftest.a func.o ) 2>&AC_FD_CC 1>/dev/null
5338         fi
5339         rm -f conftest.$ac_ext func.o
5340         ( eval $RANLIB conftest.a ) 2>&AC_FD_CC >/dev/null
5341         cf_saveLIBS="$LIBS"
5342         LIBS="conftest.a $LIBS"
5343         AC_TRY_RUN([
5344         int main(void)
5345         {
5346                 extern int testfunc();
5347                 ${cf_cv_main_return:-return} (!testfunc());
5348         }
5349         ],
5350         [cf_cv_link_dataonly=yes],
5351         [cf_cv_link_dataonly=no],
5352         [cf_cv_link_dataonly=unknown])
5353         LIBS="$cf_saveLIBS"
5354         ])
5355 AC_MSG_RESULT($cf_cv_link_dataonly)
5356
5357 if test "$cf_cv_link_dataonly" = no ; then
5358         AC_DEFINE(BROKEN_LINKER,1,[if data-only library module does not link])
5359         BROKEN_LINKER=1
5360 fi
5361 AC_SUBST(BROKEN_LINKER)
5362
5363 ])dnl
5364 dnl ---------------------------------------------------------------------------
5365 dnl CF_LINK_FUNCS version: 12 updated: 2023/01/05 17:51:41
5366 dnl -------------
5367 dnl Most Unix systems have both link and symlink, a few don't have symlink.
5368 dnl A few non-Unix systems implement symlink, but not link.
5369 dnl A few non-systems implement neither (or have nonfunctional versions).
5370 dnl
5371 dnl This allows for a 2-second difference in modification times to allow for
5372 dnl some marginal NFS implementations.
5373 AC_DEFUN([CF_LINK_FUNCS],
5374 [
5375 AC_CHECK_HEADERS( \
5376 unistd.h \
5377 )
5378 AC_CHECK_FUNCS( \
5379         remove \
5380         unlink )
5381
5382 if test "$cross_compiling" = yes ; then
5383         AC_CHECK_FUNCS( \
5384                 link \
5385                 symlink )
5386 else
5387         AC_CACHE_CHECK(if link/symlink functions work,cf_cv_link_funcs,[
5388                 cf_cv_link_funcs=
5389                 for cf_func in link symlink ; do
5390                         AC_TRY_RUN([
5391 $ac_includes_default
5392
5393 int main(void)
5394 {
5395         int fail = 0;
5396         char *src = "conftest.tmp";
5397         char *dst = "conftest.chk";
5398         struct stat src_sb, dst_sb;
5399         FILE *fp = fopen(src, "w");
5400         if (fp == 0) { fail = 3; } else {
5401                 fclose(fp); stat(src, &src_sb);
5402                 if ($cf_func(src, dst) < 0) {
5403                         fail = 1;
5404                 } else if (stat(dst, &dst_sb) < 0) {
5405                         fail = 2;
5406                 } else {
5407                         long diff = (dst_sb.st_mtime - src_sb.st_mtime);
5408                         if (diff < 0) diff = -diff;
5409                         if (diff > 2) fail = 3;
5410                 }
5411         }
5412 #ifdef HAVE_UNLINK
5413         unlink(dst); unlink(src);
5414 #else
5415         remove(dst); remove(src);
5416 #endif
5417         ${cf_cv_main_return:-return} (fail);
5418 }
5419                         ],[
5420                         cf_cv_link_funcs="$cf_cv_link_funcs $cf_func"
5421                         eval 'ac_cv_func_'$cf_func'=yes'],[
5422                         eval 'ac_cv_func_'$cf_func'=no'],[
5423                         eval 'ac_cv_func_'$cf_func'=error'])
5424                 done
5425                 test -z "$cf_cv_link_funcs" && cf_cv_link_funcs=no
5426         ])
5427         test "$ac_cv_func_link"    = yes && AC_DEFINE(HAVE_LINK,1,[Define to 1 if we have link() function])
5428         test "$ac_cv_func_symlink" = yes && AC_DEFINE(HAVE_SYMLINK,1,[Define to 1 if we have symlink() function])
5429 fi
5430 ])dnl
5431 dnl ---------------------------------------------------------------------------
5432 dnl CF_MAKEFLAGS version: 21 updated: 2021/09/04 06:47:34
5433 dnl ------------
5434 dnl Some 'make' programs support ${MAKEFLAGS}, some ${MFLAGS}, to pass 'make'
5435 dnl options to lower-levels.  It is very useful for "make -n" -- if we have it.
5436 dnl (GNU 'make' does both, something POSIX 'make', which happens to make the
5437 dnl ${MAKEFLAGS} variable incompatible because it adds the assignments :-)
5438 AC_DEFUN([CF_MAKEFLAGS],
5439 [AC_REQUIRE([AC_PROG_FGREP])dnl
5440
5441 AC_CACHE_CHECK(for makeflags variable, cf_cv_makeflags,[
5442         cf_cv_makeflags=''
5443         for cf_option in '-${MAKEFLAGS}' '${MFLAGS}'
5444         do
5445                 cat >cf_makeflags.tmp <<CF_EOF
5446 SHELL = $SHELL
5447 all :
5448         @ echo '.$cf_option'
5449 CF_EOF
5450                 cf_result=`${MAKE:-make} -k -f cf_makeflags.tmp 2>/dev/null | ${FGREP-fgrep} -v "ing directory" | sed -e 's,[[  ]]*$,,'`
5451                 case "$cf_result" in
5452                 (.*k|.*kw)
5453                         cf_result="`${MAKE:-make} -k -f cf_makeflags.tmp CC=cc 2>/dev/null`"
5454                         case "$cf_result" in
5455                         (.*CC=*)        cf_cv_makeflags=
5456                                 ;;
5457                         (*)     cf_cv_makeflags=$cf_option
5458                                 ;;
5459                         esac
5460                         break
5461                         ;;
5462                 (.-)
5463                         ;;
5464                 (*)
5465                         CF_MSG_LOG(given option \"$cf_option\", no match \"$cf_result\")
5466                         ;;
5467                 esac
5468         done
5469         rm -f cf_makeflags.tmp
5470 ])
5471
5472 AC_SUBST(cf_cv_makeflags)
5473 ])dnl
5474 dnl ---------------------------------------------------------------------------
5475 dnl CF_MAKE_PHONY version: 3 updated: 2021/01/08 16:08:21
5476 dnl -------------
5477 dnl Check if the make-program handles a ".PHONY" target, e.g,. a target which
5478 dnl acts as a placeholder.
5479 dnl
5480 dnl The ".PHONY" feature was proposed in 2011 here
5481 dnl     https://www.austingroupbugs.net/view.php?id=523
5482 dnl and is scheduled for release in P1003.1 Issue 8 (late 2022).
5483 dnl
5484 dnl This is not supported by SVr4 make (or SunOS 4, 4.3SD, etc), but works with
5485 dnl a few others (i.e., GNU make and the non-POSIX "BSD" make):
5486 dnl
5487 dnl + This is a GNU make feature (since April 1988, but in turn from binutils,
5488 dnl   date unspecified).
5489 dnl
5490 dnl + It was adopted in NetBSD make in June 1995.
5491 dnl
5492 dnl + The other BSD make programs are derived from the NetBSD make (and for
5493 dnl   that reason are not actually different "implementations").
5494 dnl
5495 dnl + Some features of NetBSD make were actually adapted from pmake, which
5496 dnl   began as a modified GNU make starting in 1993.
5497 dnl
5498 dnl + Version 3.8 of the dmake program in January 1992 also implemented this
5499 dnl   GNU make extension, but is less well known than the BSD make.
5500 AC_DEFUN([CF_MAKE_PHONY],[
5501 AC_CACHE_CHECK(for \".PHONY\" make-support, cf_cv_make_PHONY,[
5502         rm -rf conftest*
5503         (
5504                 mkdir conftest || exit 1
5505                 cd conftest
5506                 cat >makefile <<'CF_EOF'
5507 .PHONY: always
5508 DATA=0
5509 always: always.out
5510         @echo "** making [$]@ [$](DATA)"
5511 once: once.out
5512         @echo "** making [$]@ [$](DATA)"
5513 always.out:
5514         @echo "** making [$]@ [$](DATA)"
5515         echo [$](DATA) > [$]@
5516 once.out:
5517         @echo "** making [$]@ [$](DATA)"
5518         echo [$](DATA) > [$]@
5519 CF_EOF
5520                 for cf_data in 1 2 3
5521                 do
5522                         ${MAKE:-make} always DATA=$cf_data
5523                         ${MAKE:-make} once   DATA=$cf_data
5524                         ${MAKE:-make} -t always once
5525                         if test -f always ; then
5526                                 echo "no (case 1)" > ../conftest.tmp
5527                         elif test ! -f always.out ; then
5528                                 echo "no (case 2)" > ../conftest.tmp
5529                         elif test ! -f once.out ; then
5530                                 echo "no (case 3)" > ../conftest.tmp
5531                         elif ! cmp -s always.out once.out ; then
5532                                 echo "no (case 4)" > ../conftest.tmp
5533                                 diff always.out once.out
5534                         else
5535                                 cf_check="`cat always.out`"
5536                                 if test "x$cf_check" != "x$cf_data" ; then
5537                                         echo "no (case 5)" > ../conftest.tmp
5538                                 else
5539                                         echo yes > ../conftest.tmp
5540                                         rm -f ./*.out
5541                                         continue
5542                                 fi
5543                         fi
5544                         break
5545                 done
5546         ) >&AC_FD_CC 2>&1
5547         cf_cv_make_PHONY="`cat conftest.tmp`"
5548         rm -rf conftest*
5549 ])
5550 MAKE_NO_PHONY="#"
5551 MAKE_PHONY="#"
5552 test "x$cf_cv_make_PHONY" = xyes && MAKE_PHONY=
5553 test "x$cf_cv_make_PHONY" != xyes && MAKE_NO_PHONY=
5554 AC_SUBST(MAKE_NO_PHONY)
5555 AC_SUBST(MAKE_PHONY)
5556 ])dnl
5557 dnl ---------------------------------------------------------------------------
5558 dnl CF_MAKE_TAGS version: 6 updated: 2010/10/23 15:52:32
5559 dnl ------------
5560 dnl Generate tags/TAGS targets for makefiles.  Do not generate TAGS if we have
5561 dnl a monocase filesystem.
5562 AC_DEFUN([CF_MAKE_TAGS],[
5563 AC_REQUIRE([CF_MIXEDCASE_FILENAMES])
5564
5565 AC_CHECK_PROGS(CTAGS, exctags ctags)
5566 AC_CHECK_PROGS(ETAGS, exetags etags)
5567
5568 AC_CHECK_PROG(MAKE_LOWER_TAGS, ${CTAGS:-ctags}, yes, no)
5569
5570 if test "$cf_cv_mixedcase" = yes ; then
5571         AC_CHECK_PROG(MAKE_UPPER_TAGS, ${ETAGS:-etags}, yes, no)
5572 else
5573         MAKE_UPPER_TAGS=no
5574 fi
5575
5576 if test "$MAKE_UPPER_TAGS" = yes ; then
5577         MAKE_UPPER_TAGS=
5578 else
5579         MAKE_UPPER_TAGS="#"
5580 fi
5581
5582 if test "$MAKE_LOWER_TAGS" = yes ; then
5583         MAKE_LOWER_TAGS=
5584 else
5585         MAKE_LOWER_TAGS="#"
5586 fi
5587
5588 AC_SUBST(CTAGS)
5589 AC_SUBST(ETAGS)
5590
5591 AC_SUBST(MAKE_UPPER_TAGS)
5592 AC_SUBST(MAKE_LOWER_TAGS)
5593 ])dnl
5594 dnl ---------------------------------------------------------------------------
5595 dnl CF_MANPAGE_FORMAT version: 17 updated: 2023/01/21 16:49:25
5596 dnl -----------------
5597 dnl Option to allow user to override automatic configuration of manpage format.
5598 dnl There are several special cases:
5599 dnl
5600 dnl     compress - man checks for, can display compressed files
5601 dnl     bzip2 - man checks for, can display bzip2'd files
5602 dnl     gzip - man checks for, can display gzip'd files
5603 dnl     xz - man checks for, can display xz'd files
5604 dnl
5605 dnl     BSDI - files in the cat-directories are suffixed ".0"
5606 dnl     formatted - installer should format (put files in cat-directory)
5607 dnl     catonly - installer should only format, e.g., for a turnkey system.
5608 dnl
5609 dnl There are other configurations which this macro does not test, e.g., HPUX's
5610 dnl compressed manpages (but uncompressed manpages are fine, and HPUX's naming
5611 dnl convention would not match our use).
5612 AC_DEFUN([CF_MANPAGE_FORMAT],
5613 [
5614 AC_REQUIRE([CF_PATHSEP])
5615 AC_MSG_CHECKING(format of man-pages)
5616
5617 AC_ARG_WITH(manpage-format,
5618         [  --with-manpage-format   specify manpage-format: gzip/compress/bzip2/xz,
5619                           BSDI/normal and optionally formatted/catonly,
5620                           e.g., gzip,formatted],
5621         [MANPAGE_FORMAT=$withval],
5622         [MANPAGE_FORMAT=unknown])
5623
5624 test -z "$MANPAGE_FORMAT" && MANPAGE_FORMAT=unknown
5625 MANPAGE_FORMAT=`echo "$MANPAGE_FORMAT" | sed -e 's/,/ /g'`
5626
5627 cf_unknown=
5628
5629 case "$MANPAGE_FORMAT" in
5630 (unknown)
5631         if test -z "$MANPATH" ; then
5632                 MANPATH="/usr/man:/usr/share/man"
5633         fi
5634
5635         # look for the 'date' man-page (it is most likely to be installed!)
5636         MANPAGE_FORMAT=
5637         cf_preform="no"
5638         cf_catonly="yes"
5639         cf_example="date"
5640
5641         IFS="${IFS:-    }"; ac_save_ifs="$IFS"; IFS="${IFS}${PATH_SEPARATOR}"
5642         for cf_dir in $MANPATH; do
5643                 test -z "$cf_dir" && cf_dir=/usr/man
5644                 for cf_name in $cf_dir/man*/$cf_example.[[01]]* $cf_dir/cat*/$cf_example.[[01]]* $cf_dir/man*/$cf_example $cf_dir/cat*/$cf_example
5645                 do
5646                         cf_test=`echo "$cf_name" | sed -e 's/*//'`
5647                         if test "x$cf_test" = "x$cf_name" ; then
5648
5649                                 case "$cf_name" in
5650                                 (*.bz2) MANPAGE_FORMAT="$MANPAGE_FORMAT bzip2";;
5651                                 (*.xz)  MANPAGE_FORMAT="$MANPAGE_FORMAT xz";;
5652                                 (*.gz)  MANPAGE_FORMAT="$MANPAGE_FORMAT gzip";;
5653                                 (*.Z)   MANPAGE_FORMAT="$MANPAGE_FORMAT compress";;
5654                                 (*.0)   MANPAGE_FORMAT="$MANPAGE_FORMAT BSDI";;
5655                                 (*)     MANPAGE_FORMAT="$MANPAGE_FORMAT normal";;
5656                                 esac
5657
5658                                 case "$cf_name" in
5659                                 ($cf_dir/man*)
5660                                         cf_catonly=no
5661                                         ;;
5662                                 ($cf_dir/cat*)
5663                                         cf_preform=yes
5664                                         ;;
5665                                 esac
5666                                 break
5667                         fi
5668
5669                         # if we found a match in either man* or cat*, stop looking
5670                         if test -n "$MANPAGE_FORMAT" ; then
5671                                 cf_found=no
5672                                 test "$cf_preform" = yes && MANPAGE_FORMAT="$MANPAGE_FORMAT formatted"
5673                                 test "$cf_catonly" = yes && MANPAGE_FORMAT="$MANPAGE_FORMAT catonly"
5674                                 case "$cf_name" in
5675                                 ($cf_dir/cat*)
5676                                         cf_found=yes
5677                                         ;;
5678                                 esac
5679                                 test "$cf_found" = yes && break
5680                         fi
5681                 done
5682                 # only check the first directory in $MANPATH where we find manpages
5683                 if test -n "$MANPAGE_FORMAT" ; then
5684                         break
5685                 fi
5686         done
5687         # if we did not find the example, just assume it is normal
5688         test -z "$MANPAGE_FORMAT" && MANPAGE_FORMAT=normal
5689         IFS="$ac_save_ifs"
5690         ;;
5691 (*)
5692         for cf_option in $MANPAGE_FORMAT; do
5693         case "$cf_option" in
5694         (xz|bzip2|gzip|compress|BSDI|normal|formatted|catonly)
5695                 ;;
5696         (*)
5697                 cf_unknown="$cf_unknown $cf_option"
5698                 ;;
5699         esac
5700         done
5701         ;;
5702 esac
5703
5704 AC_MSG_RESULT($MANPAGE_FORMAT)
5705 if test -n "$cf_unknown" ; then
5706         AC_MSG_WARN(Unexpected manpage-format $cf_unknown)
5707 fi
5708
5709 cf_manpage_format=no
5710 cf_manpage_inboth=no
5711 cf_manpage_so_strip=
5712 cf_manpage_compress=
5713
5714 for cf_item in $MANPAGE_FORMAT
5715 do
5716 case "$cf_item" in
5717 (catonly)
5718         cf_manpage_format=yes
5719         cf_manpage_inboth=no
5720         ;;
5721 (formatted)
5722         cf_manpage_format=yes
5723         cf_manpage_inboth=yes
5724         ;;
5725 (compress)
5726         cf_manpage_so_strip="Z"
5727         cf_manpage_compress=compress
5728         ;;
5729 (gzip)
5730         cf_manpage_so_strip="gz"
5731         cf_manpage_compress=gzip
5732         ;;
5733 (bzip2)
5734         cf_manpage_so_strip="bz2"
5735         cf_manpage_compress=bzip2
5736         ;;
5737 (xz)
5738         cf_manpage_so_strip="xz"
5739         cf_manpage_compress=xz
5740         ;;
5741 esac
5742 done
5743
5744 ])dnl
5745 dnl ---------------------------------------------------------------------------
5746 dnl CF_MANPAGE_RENAMES version: 17 updated: 2022/10/23 07:46:29
5747 dnl ------------------
5748 dnl The Debian people have their own naming convention for manpages.  This
5749 dnl option lets us override the name of the file containing renaming, or
5750 dnl disable it altogether.
5751 AC_DEFUN([CF_MANPAGE_RENAMES],
5752 [
5753 AC_MSG_CHECKING(for manpage renaming)
5754
5755 AC_ARG_WITH(manpage-renames,
5756         [  --with-manpage-renames  specify manpage-renaming],
5757         [MANPAGE_RENAMES=$withval],
5758         [MANPAGE_RENAMES=yes])
5759
5760 case ".$MANPAGE_RENAMES" in
5761 (.no)
5762         ;;
5763 (.|.yes)
5764         # Debian 'man' program?
5765         if test -f /etc/debian_version ; then
5766                 MANPAGE_RENAMES=man/man_db.renames
5767         else
5768                 MANPAGE_RENAMES=no
5769         fi
5770         ;;
5771 esac
5772
5773 if test "$MANPAGE_RENAMES" = man/man_db.renames ; then
5774         MANPAGE_RENAMES=`pwd`/$MANPAGE_RENAMES
5775 elif test "$MANPAGE_RENAMES" = no ; then
5776         :
5777 elif test ! -f "$MANPAGE_RENAMES" ; then
5778         AC_MSG_ERROR(not a filename: $MANPAGE_RENAMES)
5779 fi
5780
5781 AC_MSG_RESULT($MANPAGE_RENAMES)
5782 AC_SUBST(MANPAGE_RENAMES)
5783 ])dnl
5784 dnl ---------------------------------------------------------------------------
5785 dnl CF_MANPAGE_SYMLINKS version: 7 updated: 2023/01/21 16:37:17
5786 dnl -------------------
5787 dnl Some people expect each tool to make all aliases for manpages in the
5788 dnl man-directory.  This accommodates the older, less-capable implementations
5789 dnl of 'man', and is optional.
5790 AC_DEFUN([CF_MANPAGE_SYMLINKS],
5791 [
5792 AC_MSG_CHECKING(if manpage aliases will be installed)
5793
5794 AC_ARG_WITH(manpage-aliases,
5795         [  --with-manpage-aliases  specify manpage-aliases using .so],
5796         [MANPAGE_ALIASES=$withval],
5797         [MANPAGE_ALIASES=yes])
5798
5799 AC_MSG_RESULT($MANPAGE_ALIASES)
5800
5801 case "x$LN_S" in
5802 (xln*)
5803         cf_use_symlinks=yes
5804         ;;
5805 (*)
5806         cf_use_symlinks=no
5807         ;;
5808 esac
5809
5810 MANPAGE_SYMLINKS=no
5811 if test "$MANPAGE_ALIASES" = yes ; then
5812 AC_MSG_CHECKING(if manpage symlinks should be used)
5813
5814 AC_ARG_WITH(manpage-symlinks,
5815         [  --with-manpage-symlinks specify manpage-aliases using symlinks],
5816         [MANPAGE_SYMLINKS=$withval],
5817         [MANPAGE_SYMLINKS=$cf_use_symlinks])
5818
5819 if test "$cf_use_symlinks" = no; then
5820 if test "$MANPAGE_SYMLINKS" = yes ; then
5821         AC_MSG_WARN(cannot make symlinks, will use .so files)
5822         MANPAGE_SYMLINKS=no
5823 fi
5824 fi
5825
5826 AC_MSG_RESULT($MANPAGE_SYMLINKS)
5827 fi
5828
5829 ])dnl
5830 dnl ---------------------------------------------------------------------------
5831 dnl CF_MANPAGE_TBL version: 3 updated: 2002/01/19 22:51:32
5832 dnl --------------
5833 dnl This option causes manpages to be run through tbl(1) to generate tables
5834 dnl correctly.
5835 AC_DEFUN([CF_MANPAGE_TBL],
5836 [
5837 AC_MSG_CHECKING(for manpage tbl)
5838
5839 AC_ARG_WITH(manpage-tbl,
5840         [  --with-manpage-tbl      specify manpage processing with tbl],
5841         [MANPAGE_TBL=$withval],
5842         [MANPAGE_TBL=no])
5843
5844 AC_MSG_RESULT($MANPAGE_TBL)
5845 ])dnl
5846 dnl ---------------------------------------------------------------------------
5847 dnl CF_MAN_PAGES version: 57 updated: 2023/05/13 19:14:15
5848 dnl ------------
5849 dnl Try to determine if the man-pages on the system are compressed, and if
5850 dnl so, what format is used.  Use this information to construct a script that
5851 dnl will install man-pages.
5852 AC_DEFUN([CF_MAN_PAGES],
5853 [
5854 CF_HELP_MESSAGE(Options to Specify How Manpages are Installed:)
5855 CF_MANPAGE_FORMAT
5856 CF_MANPAGE_RENAMES
5857 CF_MANPAGE_SYMLINKS
5858 CF_MANPAGE_TBL
5859
5860 if test "$prefix" = "NONE" ; then
5861         cf_prefix="$ac_default_prefix"
5862 else
5863         cf_prefix="$prefix"
5864 fi
5865
5866 test ! -d man && mkdir man
5867
5868 cf_edit_man=./edit_man.sh
5869 cf_man_alias=`pwd`/man_alias.sed
5870
5871 cat >$cf_edit_man <<CF_EOF
5872 #! $SHELL
5873 # this script is generated by the configure-script CF_MAN_PAGES macro.
5874
5875 prefix="$cf_prefix"
5876 datarootdir="$datarootdir"
5877 datadir="$datadir"
5878
5879 NCURSES_MAJOR="$NCURSES_MAJOR"
5880 NCURSES_MINOR="$NCURSES_MINOR"
5881 NCURSES_PATCH="$NCURSES_PATCH"
5882
5883 NCURSES_OSPEED="$NCURSES_OSPEED"
5884 TERMINFO="$TERMINFO"
5885
5886 INSTALL="$INSTALL"
5887 INSTALL_DATA="$INSTALL_DATA"
5888
5889 transform="$program_transform_name"
5890
5891 TMP=\${TMPDIR:=/tmp}/man\$\$
5892 trap "rm -f \$TMP; exit 1" 1 2 3 15
5893 trap "rm -f \$TMP" 0
5894
5895 form=\[$]1
5896 shift || exit 1
5897
5898 verb=\[$]1
5899 shift || exit 1
5900
5901 mandir=\[$]1
5902 shift || exit 1
5903
5904 srcdir=\[$]1
5905 top_srcdir=\[$]srcdir/..
5906 shift || exit 1
5907
5908 if test "\$form" = normal ; then
5909         if test "$cf_manpage_format" = yes ; then
5910         if test "$cf_manpage_inboth" = no ; then
5911                 $SHELL "\[$]0" format "\$verb" "\$mandir" "\$srcdir" "\[$]@"
5912                 exit $?
5913         fi
5914         fi
5915         cf_subdir=\$mandir/man
5916         cf_tables=$MANPAGE_TBL
5917 else
5918         cf_subdir=\$mandir/cat
5919         cf_tables=yes
5920 fi
5921
5922 # process the list of source-files
5923 for i in "\[$]@" ; do
5924 case \$i in
5925 (*.orig|*.rej) ;;
5926 (*.[[0-9]]*)
5927         section=\`expr "\$i" : '.*\\.\\([[0-9]]\\)[[xm]]*'\`;
5928         if test "\$verb" = installing ; then
5929         if test ! -d "\$cf_subdir\${section}" ; then
5930                 mkdir -p "\$cf_subdir\$section"
5931         fi
5932         fi
5933
5934         # replace variables in man page
5935         if test ! -f "$cf_man_alias" ; then
5936 cat >>$cf_man_alias <<-CF_EOF2
5937                 s,@DATADIR@,\$datadir,g
5938                 s,@TERMINFO@,\${TERMINFO:="no default value"},g
5939                 s,@TERMINFO_DIRS@,\${TERMINFO_DIRS:="no default value"},g
5940                 s,@NCURSES_MAJOR@,\${NCURSES_MAJOR:="no default value"},g
5941                 s,@NCURSES_MINOR@,\${NCURSES_MINOR:="no default value"},g
5942                 s,@NCURSES_PATCH@,\${NCURSES_PATCH:="no default value"},g
5943                 s,@NCURSES_OSPEED@,\${NCURSES_OSPEED:="no default value"},g
5944 CF_EOF
5945         ifelse($1,,,[
5946         for cf_name in $1
5947         do
5948                 cf_NAME=`echo "$cf_name" | sed y%abcdefghijklmnopqrstuvwxyz./-%ABCDEFGHIJKLMNOPQRSTUVWXYZ___%`
5949                 cf_name=`echo "$cf_name" | sed "$program_transform_name"`
5950 cat >>$cf_edit_man <<-CF_EOF
5951                 s,@$cf_NAME@,$cf_name,g
5952 CF_EOF
5953         done
5954         ])
5955 cat >>$cf_edit_man <<CF_EOF
5956 CF_EOF2
5957                 echo "...made $cf_man_alias"
5958         fi
5959
5960         aliases=
5961         cf_source=\`basename "\$i"\`
5962         cf_full_alias=\$cf_source
5963         test ! -f "\$cf_full_alias" && cf_full_alias="\$srcdir/\$cf_full_alias"
5964         if test ! -f "\$cf_full_alias" ; then
5965                 echo ".. skipped \$cf_source"
5966                 continue
5967         fi
5968 CF_EOF
5969
5970 if test "$MANPAGE_ALIASES" != no ; then
5971 cat >>$cf_edit_man <<CF_EOF
5972         nCurses=ignore.3x
5973         cf_part_alias=\`echo \$cf_full_alias| sed -e 's,^.*/,,'\`
5974         test "$with_curses_h" = yes && nCurses=ncurses.3x
5975         aliases=\`sed -f "\$top_srcdir/man/manlinks.sed" "\$cf_full_alias" |sed -f "$cf_man_alias" | sort -u; test "\$cf_part_alias" = "\$nCurses" && echo curses\`
5976 CF_EOF
5977 fi
5978
5979 if test "$MANPAGE_RENAMES" = no ; then
5980 cat >>$cf_edit_man <<CF_EOF
5981         # perform program transformations for section 1 man pages
5982         if test \$section = 1 ; then
5983                 cf_target=\$cf_subdir\${section}/\`echo \$cf_source|sed "\${transform}"\`
5984         else
5985                 cf_target=\$cf_subdir\${section}/\$cf_source
5986         fi
5987 CF_EOF
5988 else
5989 cat >>$cf_edit_man <<CF_EOF
5990         cf_target=\`grep "^\$cf_source" $MANPAGE_RENAMES | $AWK '{print \[$]2}'\`
5991         if test -z "\$cf_target" ; then
5992                 echo "? missing rename for \$cf_source"
5993                 cf_target="\$cf_source"
5994         fi
5995         cf_target="\$cf_subdir\${section}/\${cf_target}"
5996
5997 CF_EOF
5998 fi
5999
6000 cat >>$cf_edit_man <<CF_EOF
6001         sed     -f "$cf_man_alias" \\
6002 CF_EOF
6003
6004 if test "$MANPAGE_RENAMES" != no ; then
6005 cat >>$cf_edit_man <<CF_EOF
6006                 < "\$i" | sed -f `pwd`/edit_man.sed >\$TMP
6007 CF_EOF
6008 else
6009 cat >>$cf_edit_man <<CF_EOF
6010                 < "\$i" >\$TMP
6011 CF_EOF
6012 fi
6013
6014 cat >>$cf_edit_man <<CF_EOF
6015 if test \$cf_tables = yes ; then
6016         tbl \$TMP >\$TMP.out
6017         mv \$TMP.out \$TMP
6018 fi
6019 CF_EOF
6020
6021 if test "$with_overwrite" != yes ; then
6022 cat >>$cf_edit_man <<CF_EOF
6023         sed -e "/\\#[    ]*include/s,<curses.h,<ncurses$LIB_SUFFIX/curses.h," < \$TMP >\$TMP.out
6024         mv \$TMP.out \$TMP
6025 CF_EOF
6026 fi
6027
6028 if test "$with_curses_h" != yes ; then
6029 cat >>$cf_edit_man <<CF_EOF
6030         sed -e "/\\#[    ]*include/s,curses.h,ncurses.h," < \$TMP >\$TMP.out
6031         mv \$TMP.out \$TMP
6032 CF_EOF
6033 fi
6034
6035 cat >>$cf_edit_man <<CF_EOF
6036         if test "\$form" = format ; then
6037                 nroff -man \$TMP >\$TMP.out
6038                 mv \$TMP.out \$TMP
6039         fi
6040 CF_EOF
6041
6042 if test -n "$cf_manpage_compress" ; then
6043 cat >>$cf_edit_man <<CF_EOF
6044         if test "\$verb" = installing ; then
6045         if ( "$cf_manpage_compress" -f \$TMP )
6046         then
6047                 mv \$TMP.$cf_manpage_so_strip \$TMP
6048         fi
6049         fi
6050         cf_target="\$cf_target.$cf_manpage_so_strip"
6051 CF_EOF
6052 fi
6053
6054 case "$MANPAGE_FORMAT" in
6055 (*BSDI*)
6056 cat >>$cf_edit_man <<CF_EOF
6057         if test "\$form" = format ; then
6058                 # BSDI installs only .0 suffixes in the cat directories
6059                 cf_target="\`echo \$cf_target|sed -e 's/\\.[[1-9]]\\+[[a-z]]*/.0/'\`"
6060         fi
6061 CF_EOF
6062   ;;
6063 esac
6064
6065 cat >>$cf_edit_man <<CF_EOF
6066         suffix=\`basename "\$cf_target" | sed -e 's%^[[^.]]*%%'\`
6067         extra_suffix=
6068         if test -n "$EXTRA_SUFFIX" ; then
6069                 case \$cf_target in
6070                 (*${EXTRA_SUFFIX}\$suffix)
6071                         extra_suffix="$EXTRA_SUFFIX"
6072                         ;;
6073                 esac
6074         fi
6075         if test "\$verb" = installing ; then
6076                 echo "\$verb \$cf_target"
6077                 \$INSTALL_DATA \$TMP "\$cf_target"
6078                 test -d "\$cf_subdir\${section}" &&
6079                 test -n "\$aliases" && (
6080                         cd "\$cf_subdir\${section}" && (
6081                                 cf_source=\`echo "\$cf_target" |sed -e 's%^.*/\\([[^/]][[^/]]*/[[^/]][[^/]]*$\\)%\\1%'\`
6082                                 test -n "$cf_manpage_so_strip" && cf_source=\`echo "\$cf_source" |sed -e 's%\\.$cf_manpage_so_strip\$%%'\`
6083                                 cf_target=\`basename "\$cf_target"\`
6084                                 for cf_alias in \$aliases
6085                                 do
6086                                         if test "\$section" = 1 ; then
6087                                                 cf_alias=\`echo "\$cf_alias" |sed "\${transform}"\`
6088                                         fi
6089                                         cf_alias="\${cf_alias}\${extra_suffix}"
6090
6091                                         if test "$MANPAGE_SYMLINKS" = yes ; then
6092                                                 if test -f "\$cf_alias\${suffix}" ; then
6093                                                         if ( cmp -s "\$cf_target" "\$cf_alias\${suffix}" )
6094                                                         then
6095                                                                 continue
6096                                                         fi
6097                                                 fi
6098                                                 echo ".. \$verb alias \$cf_alias\${suffix}"
6099 CF_EOF
6100 case "x$LN_S" in
6101 (*-f)
6102 cat >>$cf_edit_man <<CF_EOF
6103                                                 $LN_S "\$cf_target" "\$cf_alias\${suffix}"
6104 CF_EOF
6105         ;;
6106 (*)
6107 cat >>$cf_edit_man <<CF_EOF
6108                                                 rm -f "\$cf_alias\${suffix}"
6109                                                 $LN_S "\$cf_target" "\$cf_alias\${suffix}"
6110 CF_EOF
6111         ;;
6112 esac
6113 cat >>$cf_edit_man <<CF_EOF
6114                                         elif test "\$cf_target" != "\$cf_alias\${suffix}" ; then
6115                                                 echo ".so \$cf_source" >\$TMP
6116 CF_EOF
6117 if test -n "$cf_manpage_compress" ; then
6118 cat >>$cf_edit_man <<CF_EOF
6119                                                 if test -n "$cf_manpage_so_strip" ; then
6120                                                         "$cf_manpage_compress" -f \$TMP
6121                                                         mv \$TMP.$cf_manpage_so_strip \$TMP
6122                                                 fi
6123 CF_EOF
6124 fi
6125 cat >>$cf_edit_man <<CF_EOF
6126                                                 echo ".. \$verb alias \$cf_alias\${suffix}"
6127                                                 rm -f "\$cf_alias\${suffix}"
6128                                                 \$INSTALL_DATA \$TMP "\$cf_alias\${suffix}"
6129                                         fi
6130                                 done
6131                         )
6132                 )
6133         elif test "\$verb" = removing ; then
6134                 test -f "\$cf_target" && (
6135                         echo "\$verb \$cf_target"
6136                         rm -f "\$cf_target"
6137                 )
6138                 test -d "\$cf_subdir\${section}" &&
6139                 test -n "\$aliases" && (
6140                         cd "\$cf_subdir\${section}" && (
6141                                 for cf_alias in \$aliases
6142                                 do
6143                                         if test "\$section" = 1 ; then
6144                                                 cf_alias=\`echo "\$cf_alias" |sed "\${transform}"\`
6145                                         fi
6146                                         cf_alias="\${cf_alias}\${extra_suffix}"
6147
6148                                         echo ".. \$verb alias \$cf_alias\${suffix}"
6149                                         rm -f "\$cf_alias\${suffix}"
6150                                 done
6151                         )
6152                 )
6153         else
6154 #               echo ".hy 0"
6155                 cat \$TMP
6156         fi
6157         ;;
6158 esac
6159 done
6160
6161 if test "$cf_manpage_inboth" = yes ; then
6162 if test "\$form" != format ; then
6163         $SHELL "\[$]0" format "\$verb" "\$mandir" "\$srcdir" "\[$]@"
6164 fi
6165 fi
6166
6167 exit 0
6168 CF_EOF
6169 chmod 755 "$cf_edit_man"
6170
6171 ])dnl
6172 dnl ---------------------------------------------------------------------------
6173 dnl CF_MAP_LIB_BASENAME version: 2 updated: 2021/01/02 17:09:14
6174 dnl -------------------
6175 dnl Convert a default-libname to the actual one used via CF_WITH_LIB_BASENAME.
6176 dnl
6177 dnl $1 = variable to set
6178 dnl $2 = default-libname
6179 AC_DEFUN([CF_MAP_LIB_BASENAME],[
6180 CF_UPPER(cf_map_lib_basename,$2)
6181 eval $1="\$${cf_map_lib_basename}_NAME"
6182 ])dnl
6183 dnl ---------------------------------------------------------------------------
6184 dnl CF_MATH_LIB version: 11 updated: 2022/07/27 19:01:48
6185 dnl -----------
6186 dnl Checks for libraries.  At least one UNIX system, Apple Macintosh
6187 dnl Rhapsody 5.5, does not have -lm.  We cannot use the simpler
6188 dnl AC_CHECK_LIB(m,sin), because that fails for C++.
6189 AC_DEFUN([CF_MATH_LIB],
6190 [
6191 AC_CACHE_CHECK(if -lm needed for math functions,
6192         cf_cv_need_libm,[
6193         AC_TRY_LINK([
6194                 #include <stdio.h>
6195                 #include <stdlib.h>
6196                 #include <math.h>
6197         ],
6198         [double x = rand(); printf("result = %g\\n", ]ifelse([$2],,sin(x),$2)[)],
6199         [cf_cv_need_libm=no],
6200         [cf_cv_need_libm=yes])])
6201
6202 if test "$cf_cv_need_libm" = yes
6203 then
6204
6205         cf_save_LIBS="$LIBS"
6206         LIBS="$LIBS -lm"
6207         AC_CACHE_CHECK(if -lm is available for math functions,
6208         cf_cv_have_libm,[
6209         AC_TRY_LINK([
6210                 #include <stdio.h>
6211                 #include <stdlib.h>
6212                 #include <math.h>
6213         ],
6214         [double x = rand(); printf("result = %g\\n", ]ifelse([$2],,sin(x),$2)[)],
6215         [cf_cv_have_libm=yes],
6216         [cf_cv_have_libm=no])])
6217         LIBS="$cf_save_LIBS"
6218
6219         if test "$cf_cv_have_libm" = yes
6220         then
6221                 ifelse($1,,[CF_ADD_LIB(m)],[$1=-lm])
6222         fi
6223 else
6224         cf_cv_have_libm=yes
6225 fi
6226
6227 if test "$cf_cv_have_libm" = yes
6228 then
6229         AC_DEFINE(HAVE_MATH_FUNCS,1,[Define to 1 if math functions are available])
6230 fi
6231 ])
6232 dnl ---------------------------------------------------------------------------
6233 dnl CF_MIXEDCASE_FILENAMES version: 9 updated: 2021/01/01 16:53:59
6234 dnl ----------------------
6235 dnl Check if the file-system supports mixed-case filenames.  If we're able to
6236 dnl create a lowercase name and see it as uppercase, it doesn't support that.
6237 AC_DEFUN([CF_MIXEDCASE_FILENAMES],
6238 [
6239 AC_CACHE_CHECK(if filesystem supports mixed-case filenames,cf_cv_mixedcase,[
6240 if test "$cross_compiling" = yes ; then
6241         case "$target_alias" in
6242         (*-os2-emx*|*-msdosdjgpp*|*-cygwin*|*-msys*|*-mingw*|*-uwin*|darwin*)
6243                 cf_cv_mixedcase=no
6244                 ;;
6245         (*)
6246                 cf_cv_mixedcase=yes
6247                 ;;
6248         esac
6249 else
6250         rm -f conftest CONFTEST
6251         echo test >conftest
6252         if test -f CONFTEST ; then
6253                 cf_cv_mixedcase=no
6254         else
6255                 cf_cv_mixedcase=yes
6256         fi
6257         rm -f conftest CONFTEST
6258 fi
6259 ])
6260 test "$cf_cv_mixedcase" = yes && AC_DEFINE(MIXEDCASE_FILENAMES,1,[Define to 1 if filesystem supports mixed-case filenames.])
6261 ])dnl
6262 dnl ---------------------------------------------------------------------------
6263 dnl CF_MKSTEMP version: 12 updated: 2023/01/05 17:53:11
6264 dnl ----------
6265 dnl Check for a working mkstemp.  This creates two files, checks that they are
6266 dnl successfully created and distinct (AmigaOS apparently fails on the last).
6267 AC_DEFUN([CF_MKSTEMP],[
6268 AC_CHECK_HEADERS( \
6269 unistd.h \
6270 )
6271 AC_CACHE_CHECK(for working mkstemp, cf_cv_func_mkstemp,[
6272 rm -rf ./conftest*
6273 AC_TRY_RUN([
6274 $ac_includes_default
6275
6276 int main(void)
6277 {
6278         char *tmpl = "conftestXXXXXX";
6279         char name[2][80];
6280         int n;
6281         int result = 0;
6282         int fd;
6283         struct stat sb;
6284
6285         umask(077);
6286         for (n = 0; n < 2; ++n) {
6287                 strcpy(name[n], tmpl);
6288                 if ((fd = mkstemp(name[n])) >= 0) {
6289                         if (!strcmp(name[n], tmpl)
6290                          || stat(name[n], &sb) != 0
6291                          || (sb.st_mode & S_IFMT) != S_IFREG
6292                          || (sb.st_mode & 077) != 0) {
6293                                 result = 1;
6294                         }
6295                         close(fd);
6296                 }
6297         }
6298         if (result == 0
6299          && !strcmp(name[0], name[1]))
6300                 result = 1;
6301         ${cf_cv_main_return:-return}(result);
6302 }
6303 ],[cf_cv_func_mkstemp=yes
6304 ],[cf_cv_func_mkstemp=no
6305 ],[cf_cv_func_mkstemp=maybe])
6306 ])
6307 if test "x$cf_cv_func_mkstemp" = xmaybe ; then
6308         AC_CHECK_FUNC(mkstemp)
6309 fi
6310 if test "x$cf_cv_func_mkstemp" = xyes || test "x$ac_cv_func_mkstemp" = xyes ; then
6311         AC_DEFINE(HAVE_MKSTEMP,1,[Define to 1 if mkstemp() is available and working.])
6312 fi
6313 ])dnl
6314 dnl ---------------------------------------------------------------------------
6315 dnl CF_MSG_LOG version: 5 updated: 2010/10/23 15:52:32
6316 dnl ----------
6317 dnl Write a debug message to config.log, along with the line number in the
6318 dnl configure script.
6319 AC_DEFUN([CF_MSG_LOG],[
6320 echo "${as_me:-configure}:__oline__: testing $* ..." 1>&AC_FD_CC
6321 ])dnl
6322 dnl ---------------------------------------------------------------------------
6323 dnl CF_NCURSES_ABI_6 version: 5 updated: 2023/01/07 16:32:06
6324 dnl ----------------
6325 dnl Set ncurses' ABI to 6 unless overridden by explicit configure option, and
6326 dnl warn about this.
6327 AC_DEFUN([CF_NCURSES_ABI_6],[
6328 if test "${with_abi_version+set}" != set; then
6329         case "$cf_cv_rel_version" in
6330         (5.*)
6331                 cf_cv_rel_version=6.0
6332                 cf_cv_abi_version=6
6333                 cf_cv_abi_default=6
6334                 AC_MSG_WARN(overriding ABI version to $cf_cv_abi_default)
6335                 ;;
6336         esac
6337 fi
6338 ])dnl
6339 dnl ---------------------------------------------------------------------------
6340 dnl CF_NCURSES_WITH_ABI_VERSION version: 3 updated: 2021/01/01 13:31:04
6341 dnl ---------------------------
6342 dnl Allow ncurses's ABI to be overridden.  Generally this happens when a
6343 dnl packager has incremented the ABI past that used in the original package,
6344 dnl and wishes to keep doing this.
6345 dnl
6346 dnl $1 is the package name, if any, to derive a corresponding {package}_ABI
6347 dnl symbol.
6348 AC_DEFUN([CF_NCURSES_WITH_ABI_VERSION],[
6349 CF_WITH_ABI_VERSION($1)
6350 if test "x$cf_cv_abi_version" != "x$with_abi_version"
6351 then
6352         case "$cf_cv_rel_version" in
6353         (5.*)
6354                 cf_cv_rel_version=$with_abi_version.0
6355                 ;;
6356         esac
6357 fi
6358 ])dnl
6359 dnl ---------------------------------------------------------------------------
6360 dnl CF_NO_LEAKS_OPTION version: 9 updated: 2021/06/13 19:45:41
6361 dnl ------------------
6362 dnl see CF_WITH_NO_LEAKS
6363 dnl
6364 dnl $1 = option/name
6365 dnl $2 = help-text
6366 dnl $3 = symbol to define if the option is set
6367 dnl $4 = additional actions to take if the option is set
6368 AC_DEFUN([CF_NO_LEAKS_OPTION],[
6369 AC_MSG_CHECKING(if you want to use $1 for testing)
6370 AC_ARG_WITH($1,
6371         [$2],
6372         [case "x$withval" in
6373         (x|xno) ;;
6374         (*)
6375                 : "${with_cflags:=-g}"
6376                 : "${enable_leaks:=no}"
6377                 with_$1=yes
6378                 AC_DEFINE_UNQUOTED($3,1,"Define to 1 if you want to use $1 for testing.")ifelse([$4],,[
6379          $4
6380 ])
6381                 ;;
6382         esac],
6383         [with_$1=])
6384 AC_MSG_RESULT(${with_$1:-no})
6385
6386 case ".$with_cflags" in
6387 (.*-g*)
6388         case .$CFLAGS in
6389         (.*-g*)
6390                 ;;
6391         (*)
6392                 CF_ADD_CFLAGS([-g])
6393                 ;;
6394         esac
6395         ;;
6396 esac
6397 ])dnl
6398 dnl ---------------------------------------------------------------------------
6399 dnl CF_NUMBER_SYNTAX version: 3 updated: 2023/05/06 16:14:29
6400 dnl ----------------
6401 dnl Check if the given variable is a positive integer.  Report an error if not.
6402 dnl $1 is the variable
6403 dnl $2 is the message
6404 AC_DEFUN([CF_NUMBER_SYNTAX],[
6405 if test -n "$1" ; then
6406   case `echo "$1" | sed -e 's/^[[0-9]]*$/0/g'` in
6407   (0)
6408         ;;
6409   (*)
6410         AC_MSG_ERROR($2 is not a number: $1)
6411         ;;
6412   esac
6413 else
6414   AC_MSG_ERROR($2 value is empty)
6415 fi
6416 ])dnl
6417 dnl ---------------------------------------------------------------------------
6418 dnl CF_OBJ_SUBDIR version: 8 updated: 2021/01/01 13:31:04
6419 dnl -------------
6420 dnl Compute the object-directory name from the given model name
6421 AC_DEFUN([CF_OBJ_SUBDIR],
6422 [
6423         case $1 in
6424         (libtool) $2='obj_lo'  ;;
6425         (normal)  $2='objects' ;;
6426         (debug)   $2='obj_g' ;;
6427         (profile) $2='obj_p' ;;
6428         (shared)
6429                 case "$cf_cv_system_name" in
6430                 (cygwin|msys)
6431                         $2='objects' ;;
6432                 (*)
6433                         $2='obj_s' ;;
6434                 esac
6435         esac
6436 ])dnl
6437 dnl ---------------------------------------------------------------------------
6438 dnl CF_OUTPUT_MANPAGE_RENAMES version: 2 updated: 2022/10/22 19:12:31
6439 dnl -------------------------
6440 dnl This runs in the output step to config.status, after man_db.renames has
6441 dnl been generated.
6442 AC_DEFUN([CF_OUTPUT_MANPAGE_RENAMES],
6443 [
6444 AC_REQUIRE([CF_MANPAGE_RENAMES])
6445 if test "$MANPAGE_RENAMES" != no ; then
6446         # Construct a sed-script to perform renaming within man-pages
6447         test -n "$verbose" && echo "creating edit_man.sed"
6448         test ! -d man && mkdir man
6449         FGREP="${FGREP-grep -F}" $SHELL "$srcdir/man/make_sed.sh" "$MANPAGE_RENAMES" >./edit_man.sed
6450 fi
6451 ])dnl
6452 dnl ---------------------------------------------------------------------------
6453 dnl CF_PATHSEP version: 8 updated: 2021/01/01 13:31:04
6454 dnl ----------
6455 dnl Provide a value for the $PATH and similar separator (or amend the value
6456 dnl as provided in autoconf 2.5x).
6457 AC_DEFUN([CF_PATHSEP],
6458 [
6459         AC_MSG_CHECKING(for PATH separator)
6460         case "$cf_cv_system_name" in
6461         (os2*)  PATH_SEPARATOR=';'  ;;
6462         (*)     ${PATH_SEPARATOR:=':'}  ;;
6463         esac
6464 ifelse([$1],,,[$1=$PATH_SEPARATOR])
6465         AC_SUBST(PATH_SEPARATOR)
6466         AC_MSG_RESULT($PATH_SEPARATOR)
6467 ])dnl
6468 dnl ---------------------------------------------------------------------------
6469 dnl CF_PATH_PROG version: 12 updated: 2021/01/02 09:31:20
6470 dnl ------------
6471 dnl Check for a given program, defining corresponding symbol.
6472 dnl     $1 = environment variable, which is suffixed by "_PATH" in the #define.
6473 dnl     $2 = program name to find.
6474 dnl     $3 = optional list of additional program names to test.
6475 dnl $4 = $PATH
6476 dnl
6477 dnl If there is more than one token in the result, #define the remaining tokens
6478 dnl to $1_ARGS.  We need this for 'install' in particular.
6479 dnl
6480 dnl FIXME: we should allow this to be overridden by environment variables
6481 dnl
6482 AC_DEFUN([CF_PATH_PROG],[
6483 AC_REQUIRE([CF_PATHSEP])
6484 test -z "[$]$1" && $1="$2"
6485 AC_PATH_PROGS($1,[$]$1 $2 ifelse($3,,,$3),[$]$1, ifelse($4,,,$4))
6486
6487 cf_path_prog=""
6488 cf_path_args=""
6489 IFS="${IFS:-    }"; cf_save_ifs="$IFS"; IFS="${IFS}$PATH_SEPARATOR"
6490 for cf_temp in $ac_cv_path_$1
6491 do
6492         if test -z "$cf_path_prog" ; then
6493                 if test "$with_full_paths" = yes ; then
6494                         CF_PATH_SYNTAX(cf_temp,break)
6495                         cf_path_prog="$cf_temp"
6496                 else
6497                         cf_path_prog="`basename "$cf_temp"`"
6498                 fi
6499         elif test -z "$cf_path_args" ; then
6500                 cf_path_args="$cf_temp"
6501         else
6502                 cf_path_args="$cf_path_args $cf_temp"
6503         fi
6504 done
6505 IFS="$cf_save_ifs"
6506
6507 if test -n "$cf_path_prog" ; then
6508         CF_MSG_LOG(defining path for ${cf_path_prog})
6509         AC_DEFINE_UNQUOTED($1_PATH,"$cf_path_prog",Define to pathname $1)
6510         test -n "$cf_path_args" && AC_DEFINE_UNQUOTED($1_ARGS,"$cf_path_args",Define to provide args for $1)
6511 fi
6512 ])dnl
6513 dnl ---------------------------------------------------------------------------
6514 dnl CF_PATH_SYNTAX version: 18 updated: 2020/12/31 18:40:20
6515 dnl --------------
6516 dnl Check the argument to see that it looks like a pathname.  Rewrite it if it
6517 dnl begins with one of the prefix/exec_prefix variables, and then again if the
6518 dnl result begins with 'NONE'.  This is necessary to work around autoconf's
6519 dnl delayed evaluation of those symbols.
6520 AC_DEFUN([CF_PATH_SYNTAX],[
6521 if test "x$prefix" != xNONE; then
6522         cf_path_syntax="$prefix"
6523 else
6524         cf_path_syntax="$ac_default_prefix"
6525 fi
6526
6527 case ".[$]$1" in
6528 (.\[$]\(*\)*|.\'*\'*)
6529         ;;
6530 (..|./*|.\\*)
6531         ;;
6532 (.[[a-zA-Z]]:[[\\/]]*) # OS/2 EMX
6533         ;;
6534 (.\[$]\{*prefix\}*|.\[$]\{*dir\}*)
6535         eval $1="[$]$1"
6536         case ".[$]$1" in
6537         (.NONE/*)
6538                 $1=`echo "[$]$1" | sed -e s%NONE%$cf_path_syntax%`
6539                 ;;
6540         esac
6541         ;;
6542 (.no|.NONE/*)
6543         $1=`echo "[$]$1" | sed -e s%NONE%$cf_path_syntax%`
6544         ;;
6545 (*)
6546         ifelse([$2],,[AC_MSG_ERROR([expected a pathname, not \"[$]$1\"])],$2)
6547         ;;
6548 esac
6549 ])dnl
6550 dnl ---------------------------------------------------------------------------
6551 dnl CF_PKG_CONFIG version: 12 updated: 2021/10/10 20:18:09
6552 dnl -------------
6553 dnl Check for the package-config program, unless disabled by command-line.
6554 dnl
6555 dnl Sets $PKG_CONFIG to the pathname of the pkg-config program.
6556 AC_DEFUN([CF_PKG_CONFIG],
6557 [
6558 AC_MSG_CHECKING(if you want to use pkg-config)
6559 AC_ARG_WITH(pkg-config,
6560         [  --with-pkg-config{=path} enable/disable use of pkg-config],
6561         [cf_pkg_config=$withval],
6562         [cf_pkg_config=yes])
6563 AC_MSG_RESULT($cf_pkg_config)
6564
6565 case "$cf_pkg_config" in
6566 (no)
6567         PKG_CONFIG=none
6568         ;;
6569 (yes)
6570         CF_ACVERSION_CHECK(2.52,
6571                 [AC_PATH_TOOL(PKG_CONFIG, pkg-config, none)],
6572                 [AC_PATH_PROG(PKG_CONFIG, pkg-config, none)])
6573         ;;
6574 (*)
6575         PKG_CONFIG=$withval
6576         ;;
6577 esac
6578
6579 test -z "$PKG_CONFIG" && PKG_CONFIG=none
6580 if test "$PKG_CONFIG" != none ; then
6581         CF_PATH_SYNTAX(PKG_CONFIG)
6582 elif test "x$cf_pkg_config" != xno ; then
6583         AC_MSG_WARN(pkg-config is not installed)
6584 fi
6585
6586 AC_SUBST(PKG_CONFIG)
6587 ])dnl
6588 dnl ---------------------------------------------------------------------------
6589 dnl CF_POSIX_C_SOURCE version: 12 updated: 2023/02/18 17:41:25
6590 dnl -----------------
6591 dnl Define _POSIX_C_SOURCE to the given level, and _POSIX_SOURCE if needed.
6592 dnl
6593 dnl     POSIX.1-1990                            _POSIX_SOURCE
6594 dnl     POSIX.1-1990 and                        _POSIX_SOURCE and
6595 dnl             POSIX.2-1992 C-Language                 _POSIX_C_SOURCE=2
6596 dnl             Bindings Option
6597 dnl     POSIX.1b-1993                           _POSIX_C_SOURCE=199309L
6598 dnl     POSIX.1c-1996                           _POSIX_C_SOURCE=199506L
6599 dnl     X/Open 2000                             _POSIX_C_SOURCE=200112L
6600 dnl
6601 dnl Parameters:
6602 dnl     $1 is the nominal value for _POSIX_C_SOURCE
6603 AC_DEFUN([CF_POSIX_C_SOURCE],
6604 [AC_REQUIRE([CF_POSIX_VISIBLE])dnl
6605
6606 if test "$cf_cv_posix_visible" = no; then
6607
6608 cf_POSIX_C_SOURCE=ifelse([$1],,199506L,[$1])
6609
6610 cf_save_CFLAGS="$CFLAGS"
6611 cf_save_CPPFLAGS="$CPPFLAGS"
6612
6613 CF_REMOVE_DEFINE(cf_trim_CFLAGS,$cf_save_CFLAGS,_POSIX_C_SOURCE)
6614 CF_REMOVE_DEFINE(cf_trim_CPPFLAGS,$cf_save_CPPFLAGS,_POSIX_C_SOURCE)
6615
6616 AC_CACHE_CHECK(if we should define _POSIX_C_SOURCE,cf_cv_posix_c_source,[
6617         CF_MSG_LOG(if the symbol is already defined go no further)
6618         AC_TRY_COMPILE([#include <sys/types.h>],[
6619 #ifndef _POSIX_C_SOURCE
6620 #error _POSIX_C_SOURCE is not defined
6621 #endif],
6622         [cf_cv_posix_c_source=no],
6623         [cf_want_posix_source=no
6624          case .$cf_POSIX_C_SOURCE in
6625          (.[[12]]??*)
6626                 cf_cv_posix_c_source="-D_POSIX_C_SOURCE=$cf_POSIX_C_SOURCE"
6627                 ;;
6628          (.2)
6629                 cf_cv_posix_c_source="-D_POSIX_C_SOURCE=$cf_POSIX_C_SOURCE"
6630                 cf_want_posix_source=yes
6631                 ;;
6632          (.*)
6633                 cf_want_posix_source=yes
6634                 ;;
6635          esac
6636          if test "$cf_want_posix_source" = yes ; then
6637                 AC_TRY_COMPILE([#include <sys/types.h>],[
6638 #ifdef _POSIX_SOURCE
6639 #error _POSIX_SOURCE is defined
6640 #endif],[],
6641                 cf_cv_posix_c_source="$cf_cv_posix_c_source -D_POSIX_SOURCE")
6642          fi
6643          CF_MSG_LOG(ifdef from value $cf_POSIX_C_SOURCE)
6644          CFLAGS="$cf_trim_CFLAGS"
6645          CPPFLAGS="$cf_trim_CPPFLAGS"
6646          CF_APPEND_TEXT(CPPFLAGS,$cf_cv_posix_c_source)
6647          CF_MSG_LOG(if the second compile does not leave our definition intact error)
6648          AC_TRY_COMPILE([#include <sys/types.h>],[
6649 #ifndef _POSIX_C_SOURCE
6650 #error _POSIX_C_SOURCE is not defined
6651 #endif],,
6652          [cf_cv_posix_c_source=no])
6653          CFLAGS="$cf_save_CFLAGS"
6654          CPPFLAGS="$cf_save_CPPFLAGS"
6655         ])
6656 ])
6657
6658 if test "$cf_cv_posix_c_source" != no ; then
6659         CFLAGS="$cf_trim_CFLAGS"
6660         CPPFLAGS="$cf_trim_CPPFLAGS"
6661         CF_ADD_CFLAGS($cf_cv_posix_c_source)
6662 fi
6663
6664 fi # cf_cv_posix_visible
6665
6666 ])dnl
6667 dnl ---------------------------------------------------------------------------
6668 dnl CF_POSIX_VISIBLE version: 1 updated: 2018/12/31 20:46:17
6669 dnl ----------------
6670 dnl POSIX documents test-macros which an application may set before any system
6671 dnl headers are included to make features available.
6672 dnl
6673 dnl Some BSD platforms (originally FreeBSD, but copied by a few others)
6674 dnl diverged from POSIX in 2002 by setting symbols which make all of the most
6675 dnl recent features visible in the system header files unless the application
6676 dnl overrides the corresponding test-macros.  Doing that introduces portability
6677 dnl problems.
6678 dnl
6679 dnl This macro makes a special check for the symbols used for this, to avoid a
6680 dnl conflicting definition.
6681 AC_DEFUN([CF_POSIX_VISIBLE],
6682 [
6683 AC_CACHE_CHECK(if the POSIX test-macros are already defined,cf_cv_posix_visible,[
6684 AC_TRY_COMPILE([#include <stdio.h>],[
6685 #if defined(__POSIX_VISIBLE) && ((__POSIX_VISIBLE - 0L) > 0) \
6686         && defined(__XSI_VISIBLE) && ((__XSI_VISIBLE - 0L) > 0) \
6687         && defined(__BSD_VISIBLE) && ((__BSD_VISIBLE - 0L) > 0) \
6688         && defined(__ISO_C_VISIBLE) && ((__ISO_C_VISIBLE - 0L) > 0)
6689 #error conflicting symbols found
6690 #endif
6691 ],[cf_cv_posix_visible=no],[cf_cv_posix_visible=yes])
6692 ])
6693 ])dnl
6694 dnl ---------------------------------------------------------------------------
6695 dnl CF_PREDEFINE version: 3 updated: 2023/02/18 17:41:25
6696 dnl ------------
6697 dnl Add definitions to CPPFLAGS to ensure they're predefined for all compiles.
6698 dnl
6699 dnl $1 = symbol to test
6700 dnl $2 = value (if any) to use for a predefinition
6701 AC_DEFUN([CF_PREDEFINE],
6702 [
6703 AC_MSG_CHECKING(if we must define $1)
6704 AC_TRY_COMPILE([#include <sys/types.h>
6705 ],[
6706 #ifndef $1
6707 #error $1 is not defined
6708 #endif],[cf_result=no],[cf_result=yes])
6709 AC_MSG_RESULT($cf_result)
6710
6711 if test "$cf_result" = yes ; then
6712         CPPFLAGS="$CPPFLAGS ifelse([$2],,-D$1,[-D$1=$2])"
6713 elif test "x$2" != "x" ; then
6714         AC_MSG_CHECKING(checking for compatible value versus $2)
6715         AC_TRY_COMPILE([#include <sys/types.h>
6716 ],[
6717 #if $1-$2 < 0
6718 #error $1-$2 is negative
6719 #endif],[cf_result=yes],[cf_result=no])
6720         AC_MSG_RESULT($cf_result)
6721         if test "$cf_result" = no ; then
6722                 # perhaps we can override it - try...
6723                 CPPFLAGS="$CPPFLAGS -D$1=$2"
6724         fi
6725 fi
6726 ])dnl
6727 dnl ---------------------------------------------------------------------------
6728 dnl CF_PRG_RULES version: 2 updated: 2021/01/01 13:31:04
6729 dnl ------------
6730 dnl Append definitions and rules for the given programs to the subdirectory
6731 dnl Makefiles, and the recursion rule for the top-level Makefile.
6732 dnl
6733 dnl parameters
6734 dnl     $1 = script to run
6735 dnl     $2 = list of subdirectories
6736 dnl
6737 dnl variables
6738 dnl     $AWK
6739 AC_DEFUN([CF_PRG_RULES],
6740 [
6741 for cf_dir in $2
6742 do
6743         if test ! -d "$srcdir/$cf_dir" ; then
6744                 continue
6745         elif test -f "$srcdir/$cf_dir/programs" ; then
6746                 $AWK -f $1 "$srcdir/$cf_dir/programs" >>$cf_dir/Makefile
6747         fi
6748 done
6749
6750 ])dnl
6751 dnl ---------------------------------------------------------------------------
6752 dnl CF_PROG_AR version: 1 updated: 2009/01/01 20:15:22
6753 dnl ----------
6754 dnl Check for archiver "ar".
6755 AC_DEFUN([CF_PROG_AR],[
6756 AC_CHECK_TOOL(AR, ar, ar)
6757 ])
6758 dnl ---------------------------------------------------------------------------
6759 dnl CF_PROG_AWK version: 1 updated: 2006/09/16 11:40:59
6760 dnl -----------
6761 dnl Check for awk, ensure that the check found something.
6762 AC_DEFUN([CF_PROG_AWK],
6763 [
6764 AC_PROG_AWK
6765 test -z "$AWK" && AC_MSG_ERROR(No awk program found)
6766 ])dnl
6767 dnl ---------------------------------------------------------------------------
6768 dnl CF_PROG_CC version: 5 updated: 2019/12/31 08:53:54
6769 dnl ----------
6770 dnl standard check for CC, plus followup sanity checks
6771 dnl $1 = optional parameter to pass to AC_PROG_CC to specify compiler name
6772 AC_DEFUN([CF_PROG_CC],[
6773 CF_ACVERSION_CHECK(2.53,
6774         [AC_MSG_WARN(this will incorrectly handle gnatgcc choice)
6775          AC_REQUIRE([AC_PROG_CC])],
6776         [])
6777 ifelse($1,,[AC_PROG_CC],[AC_PROG_CC($1)])
6778 CF_GCC_VERSION
6779 CF_ACVERSION_CHECK(2.52,
6780         [AC_PROG_CC_STDC],
6781         [CF_ANSI_CC_REQD])
6782 CF_CC_ENV_FLAGS
6783 ])dnl
6784 dnl ---------------------------------------------------------------------------
6785 dnl CF_PROG_CC_C_O version: 6 updated: 2021/01/01 13:31:04
6786 dnl --------------
6787 dnl Analogous to AC_PROG_CC_C_O, but more useful: tests only $CC, ensures that
6788 dnl the output file can be renamed, and allows for a shell variable that can
6789 dnl be used later.  The parameter is either CC or CXX.  The result is the
6790 dnl cache variable:
6791 dnl     $cf_cv_prog_CC_c_o
6792 dnl     $cf_cv_prog_CXX_c_o
6793 dnl
6794 dnl $1 = compiler
6795 dnl $2 = compiler options, if any
6796 AC_DEFUN([CF_PROG_CC_C_O],
6797 [AC_REQUIRE([AC_PROG_CC])dnl
6798 AC_MSG_CHECKING([whether [$]$1 understands -c and -o together])
6799 AC_CACHE_VAL(cf_cv_prog_$1_c_o,
6800 [
6801 cat > conftest.$ac_ext <<CF_EOF
6802 int main(void)
6803 {
6804         ${cf_cv_main_return:-return}(0);
6805 }
6806 CF_EOF
6807 # We do the test twice because some compilers refuse to overwrite an
6808 # existing .o file with -o, though they will create one.
6809 ac_try='[$]$1 $2 -c conftest.$ac_ext -o conftest2.$ac_objext >&AC_FD_CC'
6810 if AC_TRY_EVAL(ac_try) &&
6811   test -f conftest2.$ac_objext && AC_TRY_EVAL(ac_try);
6812 then
6813   eval cf_cv_prog_$1_c_o=yes
6814 else
6815   eval cf_cv_prog_$1_c_o=no
6816 fi
6817 rm -rf ./conftest*
6818 ])dnl
6819 if test "$cf_cv_prog_$1_c_o" = yes; then
6820   AC_MSG_RESULT([yes])
6821 else
6822   AC_MSG_RESULT([no])
6823 fi
6824 ])dnl
6825 dnl ---------------------------------------------------------------------------
6826 dnl CF_PROG_GNAT version: 12 updated: 2021/01/02 17:09:14
6827 dnl ------------
6828 dnl Check for gnat/gnatmake/etc, ensure that the toolset is complete.
6829 AC_DEFUN([CF_PROG_GNAT],[
6830 for cf_prog_gnat in gnat gnatmake gprconfig gprbuild
6831 do
6832         CF_UPPER(cf_upper_prog_gnat,${cf_prog_gnat})
6833
6834         unset ac_cv_path_cf_TEMP_gnat
6835         unset cf_TEMP_gnat
6836         AC_PATH_PROG(cf_TEMP_gnat,$cf_prog_gnat,no)
6837         eval "cf_cv_PATH_$cf_upper_prog_gnat=[$]ac_cv_path_cf_TEMP_gnat"
6838
6839         if test "x$cf_TEMP_gnat" != xno; then
6840                 unset cf_cv_gnat_version
6841                 unset cf_TEMP_gnat
6842                 CF_GNAT_VERSION(cf_TEMP_gnat,$cf_prog_gnat)
6843         fi
6844         eval "cf_cv_VERSION_$cf_upper_prog_gnat=[$]cf_TEMP_gnat"
6845
6846         unset cf_TEMP_gnat
6847         unset cf_cv_gnat_version
6848         unset ac_cv_path_cf_TEMP_gnat
6849 done
6850
6851 if test "x$cf_cv_VERSION_GNATMAKE" = "xno"; then
6852         cf_ada_make=
6853         cf_cv_prog_gnat_correct=no
6854 else
6855         cf_ada_make=gnatmake
6856         if test "x$cf_cv_VERSION_GPRCONFIG" = "xno"; then
6857                 # gprconfig is newer than gnatmake; we can continue...
6858                 cf_ada_config="##"
6859         else
6860                 rm -rf ./conftest* ./*~conftest*
6861                 if mkdir conftest.src
6862                 then
6863                         cf_ada_config=""
6864                         cd conftest.src
6865                         for cf_gprconfig in Ada C
6866                         do
6867                                 AC_MSG_CHECKING(for gprconfig name for $cf_gprconfig)
6868                                 if test "$cf_gprconfig" = C
6869                                 then
6870                                         for cf_gprconfig_param in \
6871                                                 "$cf_gprconfig,,,,GNATGCC" \
6872                                                 "$cf_gprconfig,,,,GCC" \
6873                                                 "$cf_gprconfig"
6874                                         do
6875                                                 cf_gprconfig_value=`echo s| gprconfig --config=$cf_gprconfig_param 2>&AC_FD_CC | ${AWK:-awk} '/^\*/{print [$]3;}' | head -n 1`
6876                                                 test -n "$cf_gprconfig_value" && break
6877                                         done
6878                                 else
6879                                         cf_gprconfig_param=$cf_gprconfig
6880                                         cf_gprconfig_value=`echo s| gprconfig --config=$cf_gprconfig_param 2>&AC_FD_CC | ${AWK:-awk} '/^\*/{print [$]3;}' | head -n 1`
6881                                 fi
6882                                 if test -n "$cf_gprconfig_value"
6883                                 then
6884                                         eval "cf_ada_config_[$]cf_gprconfig=[$]cf_gprconfig_value"
6885                                         AC_MSG_RESULT($cf_gprconfig_value)
6886                                 else
6887                                         AC_MSG_RESULT(missing)
6888                                         cf_ada_config="#"
6889                                         break
6890                                 fi
6891                         done
6892                         cd ..
6893                         rm -rf ./conftest* ./*~conftest*
6894                 fi
6895         fi
6896         if test "x$cf_ada_config" != "x#"
6897         then
6898                 CF_GNAT_VERSION
6899                 CF_CHECK_GNAT_VERSION
6900                 AC_CHECK_PROG(M4_exists, m4, yes, no)
6901                 if test "$ac_cv_prog_M4_exists" = no; then
6902                         cf_cv_prog_gnat_correct=no
6903                         AC_MSG_WARN(Ada95 binding required program m4 not found. Ada95 binding disabled)
6904                 fi
6905                 if test "$cf_cv_prog_gnat_correct" = yes; then
6906                         AC_MSG_CHECKING(if GNAT works)
6907                         CF_GNAT_TRY_RUN([procedure conftest;],
6908 [with Text_IO;
6909 with GNAT.OS_Lib;
6910 procedure conftest is
6911 begin
6912    Text_IO.Put ("Hello World");
6913    Text_IO.New_Line;
6914    GNAT.OS_Lib.OS_Exit (0);
6915 end conftest;],
6916 [cf_cv_prog_gnat_correct=yes],
6917 [cf_cv_prog_gnat_correct=no])
6918                         AC_MSG_RESULT($cf_cv_prog_gnat_correct)
6919                 fi
6920         else
6921                 cf_cv_prog_gnat_correct=no
6922         fi
6923 fi
6924
6925 AC_SUBST(cf_ada_make)
6926 AC_SUBST(cf_ada_config)
6927 AC_SUBST(cf_ada_config_Ada)
6928 AC_SUBST(cf_ada_config_C)
6929 ])dnl
6930 dnl ---------------------------------------------------------------------------
6931 dnl CF_PROG_INSTALL version: 10 updated: 2021/01/04 19:33:05
6932 dnl ---------------
6933 dnl Force $INSTALL to be an absolute-path.  Otherwise, edit_man.sh and the
6934 dnl misc/tabset install won't work properly.  Usually this happens only when
6935 dnl using the fallback mkinstalldirs script
6936 AC_DEFUN([CF_PROG_INSTALL],
6937 [AC_PROG_INSTALL
6938 case $INSTALL in
6939 (/*)
6940         ;;
6941 (*)
6942         CF_DIRNAME(cf_dir,$INSTALL)
6943         test -z "$cf_dir" && cf_dir=.
6944         INSTALL="`cd \"$cf_dir\" && pwd`"/"`echo "$INSTALL" | sed -e 's%^.*/%%'`"
6945         ;;
6946 esac
6947 ])dnl
6948 dnl ---------------------------------------------------------------------------
6949 dnl CF_PROG_LDCONFIG version: 5 updated: 2015/04/18 08:56:57
6950 dnl ----------------
6951 dnl Check for ldconfig, needed to fixup shared libraries that would be built
6952 dnl and then used in the install.
6953 AC_DEFUN([CF_PROG_LDCONFIG],[
6954 if test "$cross_compiling" = yes ; then
6955         LDCONFIG=:
6956 else
6957         case "$cf_cv_system_name" in
6958         (dragonfly*|mirbsd*|freebsd*)
6959                 test -z "$LDCONFIG" && LDCONFIG="/sbin/ldconfig -R"
6960                 ;;
6961         (*) LDPATH=$PATH:/sbin:/usr/sbin
6962                 AC_PATH_PROG(LDCONFIG,ldconfig,,$LDPATH)
6963                 ;;
6964         esac
6965 fi
6966 AC_SUBST(LDCONFIG)
6967 ])dnl
6968 dnl ---------------------------------------------------------------------------
6969 dnl CF_PROG_LINT version: 5 updated: 2022/08/20 15:44:13
6970 dnl ------------
6971 AC_DEFUN([CF_PROG_LINT],
6972 [
6973 AC_CHECK_PROGS(LINT, lint cppcheck splint)
6974 case "x$LINT" in
6975 (xcppcheck|x*/cppcheck)
6976         test -z "$LINT_OPTS" && LINT_OPTS="--enable=all"
6977         ;;
6978 esac
6979 AC_SUBST(LINT_OPTS)
6980 AC_SUBST(LINT_LIBS)
6981 ])dnl
6982 dnl ---------------------------------------------------------------------------
6983 dnl CF_PROG_LN_S version: 2 updated: 2010/08/14 18:25:37
6984 dnl ------------
6985 dnl Combine checks for "ln -s" and "ln -sf", updating $LN_S to include "-f"
6986 dnl option if it is supported.
6987 AC_DEFUN([CF_PROG_LN_S],[
6988 AC_PROG_LN_S
6989 AC_MSG_CHECKING(if $LN_S -f options work)
6990
6991 rm -f conf$$.src conf$$dst
6992 echo >conf$$.dst
6993 echo first >conf$$.src
6994 if $LN_S -f conf$$.src conf$$.dst 2>/dev/null; then
6995         cf_prog_ln_sf=yes
6996 else
6997         cf_prog_ln_sf=no
6998 fi
6999 rm -f conf$$.dst conf$$src
7000 AC_MSG_RESULT($cf_prog_ln_sf)
7001
7002 test "$cf_prog_ln_sf" = yes && LN_S="$LN_S -f"
7003 ])dnl
7004 dnl ---------------------------------------------------------------------------
7005 dnl CF_REGEX version: 18 updated: 2021/01/01 16:53:59
7006 dnl --------
7007 dnl Attempt to determine if we've got one of the flavors of regular-expression
7008 dnl code that we can support.
7009 AC_DEFUN([CF_REGEX],
7010 [
7011
7012 cf_regex_func=no
7013 cf_regex_libs=
7014 case "$host_os" in
7015 (mingw*)
7016         # -lsystre -ltre -lintl -liconv
7017         AC_CHECK_LIB(systre,regcomp,[
7018                 AC_CHECK_LIB(iconv,libiconv_open,[CF_ADD_LIB(iconv)])
7019                 AC_CHECK_LIB(intl,libintl_gettext,[CF_ADD_LIB(intl)])
7020                 AC_CHECK_LIB(tre,tre_regcomp,[CF_ADD_LIB(tre)])
7021                 CF_ADD_LIB(systre)
7022                 cf_regex_func=regcomp
7023         ],[
7024                 AC_CHECK_LIB(gnurx,regcomp,[
7025                         CF_ADD_LIB(gnurx)
7026                         cf_regex_func=regcomp])
7027         ])
7028         ;;
7029 (*)
7030         cf_regex_libs="regex re"
7031         AC_CHECK_FUNC(regcomp,[cf_regex_func=regcomp],[
7032                 for cf_regex_lib in $cf_regex_libs
7033                 do
7034                         AC_CHECK_LIB($cf_regex_lib,regcomp,[
7035                                         CF_ADD_LIB($cf_regex_lib)
7036                                         cf_regex_func=regcomp
7037                                         break])
7038                 done
7039         ])
7040         ;;
7041 esac
7042
7043 if test "$cf_regex_func" = no ; then
7044         AC_CHECK_FUNC(compile,[cf_regex_func=compile],[
7045                 AC_CHECK_LIB(gen,compile,[
7046                                 CF_ADD_LIB(gen)
7047                                 cf_regex_func=compile])])
7048 fi
7049
7050 if test "$cf_regex_func" = no ; then
7051         AC_MSG_WARN(cannot find regular expression library)
7052 fi
7053
7054 AC_CACHE_CHECK(for regular-expression headers,cf_cv_regex_hdrs,[
7055
7056 cf_cv_regex_hdrs=no
7057 case "$cf_regex_func" in
7058 (compile)
7059         for cf_regex_hdr in regexp.h regexpr.h
7060         do
7061                 AC_TRY_LINK([#include <$cf_regex_hdr>],[
7062                         char *p = compile("", "", "", 0);
7063                         int x = step("", "");
7064                         (void)p;
7065                         (void)x;
7066                 ],[
7067                         cf_cv_regex_hdrs=$cf_regex_hdr
7068                         break
7069                 ])
7070         done
7071         ;;
7072 (*)
7073         for cf_regex_hdr in regex.h
7074         do
7075                 AC_TRY_LINK([#include <sys/types.h>
7076 #include <$cf_regex_hdr>],[
7077                         regex_t *p = 0;
7078                         int x = regcomp(p, "", 0);
7079                         int y = regexec(p, "", 0, 0, 0);
7080                         (void)x;
7081                         (void)y;
7082                         regfree(p);
7083                 ],[
7084                         cf_cv_regex_hdrs=$cf_regex_hdr
7085                         break
7086                 ])
7087         done
7088         ;;
7089 esac
7090
7091 ])
7092
7093 case "$cf_cv_regex_hdrs" in
7094         (no)            AC_MSG_WARN(no regular expression header found) ;;
7095         (regex.h)       AC_DEFINE(HAVE_REGEX_H_FUNCS,1,[Define to 1 to include regex.h for regular expressions]) ;;
7096         (regexp.h)      AC_DEFINE(HAVE_REGEXP_H_FUNCS,1,[Define to 1 to include regexp.h for regular expressions]) ;;
7097         (regexpr.h) AC_DEFINE(HAVE_REGEXPR_H_FUNCS,1,[Define to 1 to include regexpr.h for regular expressions]) ;;
7098 esac
7099 ])dnl
7100 dnl ---------------------------------------------------------------------------
7101 dnl CF_REMOVE_CFLAGS version: 3 updated: 2021/09/05 17:25:40
7102 dnl ----------------
7103 dnl Remove a given option from CFLAGS/CPPFLAGS
7104 dnl $1 = option to remove
7105 dnl $2 = variable to update
7106 dnl $3 = nonempty to allow verbose message
7107 define([CF_REMOVE_CFLAGS],
7108 [
7109 cf_tmp_cflag=`echo "x$1" | sed -e 's/^.//' -e 's/=.*//'`
7110 while true
7111 do
7112         cf_old_cflag=`echo "x[$]$2" | sed -e 's/^.//' -e 's/[[  ]][[    ]]*-/ -/g' -e "s%$cf_tmp_cflag\\(=[[^   ]][[^   ]]*\\)\?%%" -e 's/^[[   ]]*//' -e 's%[[ ]][[ ]]*-D% -D%g' -e 's%[[ ]][[ ]]*-I% -I%g'`
7113         test "[$]$2" != "$cf_old_cflag" || break
7114         ifelse([$3],,,[CF_VERBOSE(removing old option $1 from $2)])
7115         $2="$cf_old_cflag"
7116 done
7117 ])dnl
7118 dnl ---------------------------------------------------------------------------
7119 dnl CF_REMOVE_DEFINE version: 3 updated: 2010/01/09 11:05:50
7120 dnl ----------------
7121 dnl Remove all -U and -D options that refer to the given symbol from a list
7122 dnl of C compiler options.  This works around the problem that not all
7123 dnl compilers process -U and -D options from left-to-right, so a -U option
7124 dnl cannot be used to cancel the effect of a preceding -D option.
7125 dnl
7126 dnl $1 = target (which could be the same as the source variable)
7127 dnl $2 = source (including '$')
7128 dnl $3 = symbol to remove
7129 define([CF_REMOVE_DEFINE],
7130 [
7131 $1=`echo "$2" | \
7132         sed     -e 's/-[[UD]]'"$3"'\(=[[^       ]]*\)\?[[       ]]/ /g' \
7133                 -e 's/-[[UD]]'"$3"'\(=[[^       ]]*\)\?[$]//g'`
7134 ])dnl
7135 dnl ---------------------------------------------------------------------------
7136 dnl CF_REMOVE_LIB version: 1 updated: 2007/02/17 14:11:52
7137 dnl -------------
7138 dnl Remove the given library from the symbol
7139 dnl
7140 dnl $1 = target (which could be the same as the source variable)
7141 dnl $2 = source (including '$')
7142 dnl $3 = library to remove
7143 define([CF_REMOVE_LIB],
7144 [
7145 # remove $3 library from $2
7146 $1=`echo "$2" | sed -e 's/-l$3[[        ]]//g' -e 's/-l$3[$]//'`
7147 ])dnl
7148 dnl ---------------------------------------------------------------------------
7149 dnl CF_RESTORE_XTRA_FLAGS version: 1 updated: 2020/01/11 16:47:45
7150 dnl ---------------------
7151 dnl Restore flags saved in CF_SAVE_XTRA_FLAGS
7152 dnl $1 = name of current macro
7153 define([CF_RESTORE_XTRA_FLAGS],
7154 [
7155 LIBS="$cf_save_LIBS_$1"
7156 CFLAGS="$cf_save_CFLAGS_$1"
7157 CPPFLAGS="$cf_save_CPPFLAGS_$1"
7158 ])dnl
7159 dnl ---------------------------------------------------------------------------
7160 dnl CF_RPATH_HACK version: 13 updated: 2021/01/03 18:30:50
7161 dnl -------------
7162 AC_DEFUN([CF_RPATH_HACK],
7163 [AC_REQUIRE([AC_PROG_FGREP])dnl
7164 AC_REQUIRE([CF_LD_RPATH_OPT])dnl
7165
7166 AC_MSG_CHECKING(for updated LDFLAGS)
7167 if test -n "$LD_RPATH_OPT" ; then
7168         AC_MSG_RESULT(maybe)
7169
7170         AC_CHECK_PROGS(cf_ldd_prog,ldd,no)
7171         cf_rpath_list="/usr/lib /lib"
7172         if test "$cf_ldd_prog" != no
7173         then
7174                 cf_rpath_oops=
7175
7176 AC_TRY_LINK([#include <stdio.h>],
7177                 [printf("Hello");],
7178                 [cf_rpath_oops=`"$cf_ldd_prog" "conftest$ac_exeext" | ${FGREP-fgrep} ' not found' | sed -e 's% =>.*$%%' |sort | uniq`
7179                  cf_rpath_list=`"$cf_ldd_prog" "conftest$ac_exeext" | ${FGREP-fgrep} / | sed -e 's%^.*[[        ]]/%/%' -e 's%/[[^/]][[^/]]*$%%' |sort | uniq`])
7180
7181                 # If we passed the link-test, but get a "not found" on a given library,
7182                 # this could be due to inept reconfiguration of gcc to make it only
7183                 # partly honor /usr/local/lib (or whatever).  Sometimes this behavior
7184                 # is intentional, e.g., installing gcc in /usr/bin and suppressing the
7185                 # /usr/local libraries.
7186                 if test -n "$cf_rpath_oops"
7187                 then
7188                         for cf_rpath_src in $cf_rpath_oops
7189                         do
7190                                 for cf_rpath_dir in \
7191                                         /usr/local \
7192                                         /usr/pkg \
7193                                         /opt/sfw
7194                                 do
7195                                         if test -f "$cf_rpath_dir/lib/$cf_rpath_src"
7196                                         then
7197                                                 CF_VERBOSE(...adding -L$cf_rpath_dir/lib to LDFLAGS for $cf_rpath_src)
7198                                                 LDFLAGS="$LDFLAGS -L$cf_rpath_dir/lib"
7199                                                 break
7200                                         fi
7201                                 done
7202                         done
7203                 fi
7204         fi
7205
7206         CF_VERBOSE(...checking EXTRA_LDFLAGS $EXTRA_LDFLAGS)
7207
7208         CF_RPATH_HACK_2(LDFLAGS)
7209         CF_RPATH_HACK_2(LIBS)
7210
7211         CF_VERBOSE(...checked EXTRA_LDFLAGS $EXTRA_LDFLAGS)
7212 else
7213         AC_MSG_RESULT(no)
7214 fi
7215 AC_SUBST(EXTRA_LDFLAGS)
7216 ])dnl
7217 dnl ---------------------------------------------------------------------------
7218 dnl CF_RPATH_HACK_2 version: 8 updated: 2021/01/01 13:31:04
7219 dnl ---------------
7220 dnl Do one set of substitutions for CF_RPATH_HACK, adding an rpath option to
7221 dnl EXTRA_LDFLAGS for each -L option found.
7222 dnl
7223 dnl $cf_rpath_list contains a list of directories to ignore.
7224 dnl
7225 dnl $1 = variable name to update.  The LDFLAGS variable should be the only one,
7226 dnl      but LIBS often has misplaced -L options.
7227 AC_DEFUN([CF_RPATH_HACK_2],
7228 [
7229 CF_VERBOSE(...checking $1 [$]$1)
7230
7231 cf_rpath_dst=
7232 for cf_rpath_src in [$]$1
7233 do
7234         case "$cf_rpath_src" in
7235         (-L*)
7236
7237                 # check if this refers to a directory which we will ignore
7238                 cf_rpath_skip=no
7239                 if test -n "$cf_rpath_list"
7240                 then
7241                         for cf_rpath_item in $cf_rpath_list
7242                         do
7243                                 if test "x$cf_rpath_src" = "x-L$cf_rpath_item"
7244                                 then
7245                                         cf_rpath_skip=yes
7246                                         break
7247                                 fi
7248                         done
7249                 fi
7250
7251                 if test "$cf_rpath_skip" = no
7252                 then
7253                         # transform the option
7254                         if test "$LD_RPATH_OPT" = "-R " ; then
7255                                 cf_rpath_tmp=`echo "$cf_rpath_src" |sed -e "s%-L%-R %"`
7256                         else
7257                                 cf_rpath_tmp=`echo "$cf_rpath_src" |sed -e "s%-L%$LD_RPATH_OPT%"`
7258                         fi
7259
7260                         # if we have not already added this, add it now
7261                         cf_rpath_tst=`echo "$EXTRA_LDFLAGS" | sed -e "s%$cf_rpath_tmp %%"`
7262                         if test "x$cf_rpath_tst" = "x$EXTRA_LDFLAGS"
7263                         then
7264                                 CF_VERBOSE(...Filter $cf_rpath_src ->$cf_rpath_tmp)
7265                                 EXTRA_LDFLAGS="$cf_rpath_tmp $EXTRA_LDFLAGS"
7266                         fi
7267                 fi
7268                 ;;
7269         esac
7270         cf_rpath_dst="$cf_rpath_dst $cf_rpath_src"
7271 done
7272 $1=$cf_rpath_dst
7273
7274 CF_VERBOSE(...checked $1 [$]$1)
7275 AC_SUBST(EXTRA_LDFLAGS)
7276 ])dnl
7277 dnl ---------------------------------------------------------------------------
7278 dnl CF_SAVE_XTRA_FLAGS version: 1 updated: 2020/01/11 16:46:44
7279 dnl ------------------
7280 dnl Use this macro to save CFLAGS/CPPFLAGS/LIBS before checks against X headers
7281 dnl and libraries which do not update those variables.
7282 dnl
7283 dnl $1 = name of current macro
7284 define([CF_SAVE_XTRA_FLAGS],
7285 [
7286 cf_save_LIBS_$1="$LIBS"
7287 cf_save_CFLAGS_$1="$CFLAGS"
7288 cf_save_CPPFLAGS_$1="$CPPFLAGS"
7289 LIBS="$LIBS ${X_PRE_LIBS} ${X_LIBS} ${X_EXTRA_LIBS}"
7290 for cf_X_CFLAGS in $X_CFLAGS
7291 do
7292         case "x$cf_X_CFLAGS" in
7293         x-[[IUD]]*)
7294                 CPPFLAGS="$CPPFLAGS $cf_X_CFLAGS"
7295                 ;;
7296         *)
7297                 CFLAGS="$CFLAGS $cf_X_CFLAGS"
7298                 ;;
7299         esac
7300 done
7301 ])dnl
7302 dnl ---------------------------------------------------------------------------
7303 dnl CF_SHARED_OPTS version: 107 updated: 2021/09/04 06:47:34
7304 dnl --------------
7305 dnl --------------
7306 dnl Attempt to determine the appropriate CC/LD options for creating a shared
7307 dnl library.
7308 dnl
7309 dnl Notes:
7310 dnl a) ${LOCAL_LDFLAGS} is used to link executables that will run within
7311 dnl the build-tree, i.e., by making use of the libraries that are compiled in
7312 dnl $rel_builddir/lib We avoid compiling-in a $rel_builddir/lib path for the
7313 dnl shared library since that can lead to unexpected results at runtime.
7314 dnl b) ${LOCAL_LDFLAGS2} has the same intention but assumes that the shared
7315 dnl libraries are compiled in ../../lib
7316 dnl
7317 dnl The variable 'cf_cv_do_symlinks' is used to control whether we configure
7318 dnl to install symbolic links to the rel/abi versions of shared libraries.
7319 dnl
7320 dnl The variable 'cf_cv_shlib_version' controls whether we use the rel or abi
7321 dnl version when making symbolic links.
7322 dnl
7323 dnl The variable 'cf_cv_shlib_version_infix' controls whether shared library
7324 dnl version numbers are infix (ex: libncurses.<ver>.dylib) or postfix
7325 dnl (ex: libncurses.so.<ver>).
7326 dnl
7327 dnl Some loaders leave 'so_locations' lying around.  It is nice to clean up.
7328 AC_DEFUN([CF_SHARED_OPTS],
7329 [
7330         AC_REQUIRE([CF_LD_RPATH_OPT])
7331
7332         RM_SHARED_OPTS=
7333         LOCAL_LDFLAGS=
7334         LOCAL_LDFLAGS2=
7335         LD_SHARED_OPTS=
7336         INSTALL_LIB="-m 644"
7337         : ${rel_builddir:=.}
7338
7339         shlibdir=$libdir
7340         AC_SUBST(shlibdir)
7341
7342         MAKE_DLLS="#"
7343         AC_SUBST(MAKE_DLLS)
7344
7345         cf_cv_do_symlinks=no
7346         cf_ld_rpath_opt=
7347         test "$cf_cv_enable_rpath" = yes && cf_ld_rpath_opt="$LD_RPATH_OPT"
7348
7349         AC_MSG_CHECKING(if release/abi version should be used for shared libs)
7350         AC_ARG_WITH(shlib-version,
7351         [  --with-shlib-version=X  Specify rel or abi version for shared libs],
7352         [test -z "$withval" && withval=auto
7353         case "$withval" in
7354         (yes)
7355                 cf_cv_shlib_version=auto
7356                 ;;
7357         (rel|abi|auto)
7358                 cf_cv_shlib_version=$withval
7359                 ;;
7360         (*)
7361                 AC_MSG_RESULT($withval)
7362                 AC_MSG_ERROR([option value must be one of: rel, abi, or auto])
7363                 ;;
7364         esac
7365         ],[cf_cv_shlib_version=auto])
7366         AC_MSG_RESULT($cf_cv_shlib_version)
7367
7368         cf_cv_rm_so_locs=no
7369         cf_try_cflags=
7370
7371         # Some less-capable ports of gcc support only -fpic
7372         CC_SHARED_OPTS=
7373
7374         cf_try_fPIC=no
7375         if test "$GCC" = yes
7376         then
7377                 cf_try_fPIC=yes
7378         else
7379                 case "$cf_cv_system_name" in
7380                 (*linux*)       # e.g., PGI compiler
7381                         cf_try_fPIC=yes
7382                         ;;
7383                 esac
7384         fi
7385
7386         if test "$cf_try_fPIC" = yes
7387         then
7388                 AC_MSG_CHECKING(which $CC option to use)
7389                 cf_save_CFLAGS="$CFLAGS"
7390                 for CC_SHARED_OPTS in -fPIC -fpic ''
7391                 do
7392                         CFLAGS="$cf_save_CFLAGS $CC_SHARED_OPTS"
7393                         AC_TRY_COMPILE([#include <stdio.h>],[int x = 1],[break],[])
7394                 done
7395                 AC_MSG_RESULT($CC_SHARED_OPTS)
7396                 CFLAGS="$cf_save_CFLAGS"
7397         fi
7398
7399         cf_cv_shlib_version_infix=no
7400
7401         case "$cf_cv_system_name" in
7402         (aix4.[3-9]*|aix[[5-7]]*)
7403                 if test "$GCC" = yes; then
7404                         CC_SHARED_OPTS='-Wl,-brtl'
7405                         MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -Wl,-brtl -Wl,-blibpath:${RPATH_LIST}:/usr/lib -o [$]@'
7406                 else
7407                         CC_SHARED_OPTS='-brtl'
7408                         # as well as '-qpic=large -G' or perhaps "-bM:SRE -bnoentry -bexpall"
7409                         MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -G -Wl,-brtl -Wl,-blibpath:${RPATH_LIST}:/usr/lib -o [$]@'
7410                 fi
7411                 ;;
7412         (beos*)
7413                 MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -o $[@] -Xlinker -soname=`basename $[@]` -nostart -e 0'
7414                 ;;
7415         (cygwin*)
7416                 CC_SHARED_OPTS=
7417                 MK_SHARED_LIB=$SHELL' '$rel_builddir'/mk_shared_lib.sh [$]@ [$]{CC} [$]{CFLAGS}'
7418                 RM_SHARED_OPTS="$RM_SHARED_OPTS $rel_builddir/mk_shared_lib.sh *.dll.a"
7419                 cf_cv_shlib_version=cygdll
7420                 cf_cv_shlib_version_infix=cygdll
7421                 shlibdir=$bindir
7422                 MAKE_DLLS=
7423                 cat >mk_shared_lib.sh <<-CF_EOF
7424                 #!$SHELL
7425                 SHARED_LIB=\[$]1
7426                 IMPORT_LIB=\`echo "\[$]1" | sed -e 's/cyg/lib/' -e 's/[[0-9]]*\.dll[$]/.dll.a/'\`
7427                 shift
7428                 cat <<-EOF
7429                 Linking shared library
7430                 ** SHARED_LIB \[$]SHARED_LIB
7431                 ** IMPORT_LIB \[$]IMPORT_LIB
7432 EOF
7433                 exec \[$]* ${LDFLAGS} -shared -Wl,--out-implib=\[$]{IMPORT_LIB} -Wl,--export-all-symbols -o \[$]{SHARED_LIB}
7434 CF_EOF
7435                 chmod +x mk_shared_lib.sh
7436                 ;;
7437         (msys*)
7438                 CC_SHARED_OPTS=
7439                 MK_SHARED_LIB=$SHELL' '$rel_builddir'/mk_shared_lib.sh [$]@ [$]{CC} [$]{CFLAGS}'
7440                 RM_SHARED_OPTS="$RM_SHARED_OPTS $rel_builddir/mk_shared_lib.sh *.dll.a"
7441                 cf_cv_shlib_version=msysdll
7442                 cf_cv_shlib_version_infix=msysdll
7443                 shlibdir=$bindir
7444                 MAKE_DLLS=
7445                 cat >mk_shared_lib.sh <<-CF_EOF
7446                 #!$SHELL
7447                 SHARED_LIB=\[$]1
7448                 IMPORT_LIB=\`echo "\[$]1" | sed -e 's/msys-/lib/' -e 's/[[0-9]]*\.dll[$]/.dll.a/'\`
7449                 shift
7450                 cat <<-EOF
7451                 Linking shared library
7452                 ** SHARED_LIB \[$]SHARED_LIB
7453                 ** IMPORT_LIB \[$]IMPORT_LIB
7454 EOF
7455                 exec \[$]* ${LDFLAGS} -shared -Wl,--out-implib=\[$]{IMPORT_LIB} -Wl,--export-all-symbols -o \[$]{SHARED_LIB}
7456 CF_EOF
7457                 chmod +x mk_shared_lib.sh
7458                 ;;
7459         (darwin*)
7460                 cf_try_cflags="no-cpp-precomp"
7461                 CC_SHARED_OPTS="-dynamic"
7462                 MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -dynamiclib -install_name ${libdir}/`basename $[@]` -compatibility_version ${ABI_VERSION} -current_version ${ABI_VERSION} -o $[@]'
7463                 test "$cf_cv_shlib_version" = auto && cf_cv_shlib_version=abi
7464                 cf_cv_shlib_version_infix=yes
7465                 AC_CACHE_CHECK([if ld -search_paths_first works], cf_cv_ldflags_search_paths_first, [
7466                         cf_save_LDFLAGS=$LDFLAGS
7467                         LDFLAGS="$LDFLAGS -Wl,-search_paths_first"
7468                         AC_TRY_LINK(, [int i;], cf_cv_ldflags_search_paths_first=yes, cf_cv_ldflags_search_paths_first=no)
7469                                 LDFLAGS=$cf_save_LDFLAGS])
7470                 if test "$cf_cv_ldflags_search_paths_first" = yes; then
7471                         LDFLAGS="$LDFLAGS -Wl,-search_paths_first"
7472                 fi
7473                 ;;
7474         (haiku*)
7475                 CF_SHARED_SONAME
7476                 MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -Wl,-soname,'$cf_cv_shared_soname',-stats,-lc -o $[@]'
7477                 ;;
7478         (hpux[[7-8]]*)
7479                 # HP-UX 8.07 ld lacks "+b" option used for libdir search-list
7480                 if test "$GCC" != yes; then
7481                         CC_SHARED_OPTS='+Z'
7482                 fi
7483                 MK_SHARED_LIB='${LD} ${LDFLAGS} -b -o $[@]'
7484                 INSTALL_LIB="-m 555"
7485                 ;;
7486         (hpux*)
7487                 # (tested with gcc 2.7.2 -- I don't have c89)
7488                 if test "$GCC" = yes; then
7489                         LD_SHARED_OPTS='-Xlinker +b -Xlinker ${libdir}'
7490                 else
7491                         CC_SHARED_OPTS='+Z'
7492                         LD_SHARED_OPTS='-Wl,+b,${libdir}'
7493                 fi
7494                 MK_SHARED_LIB='${LD} ${LDFLAGS} +b ${libdir} -b -o $[@]'
7495                 # HP-UX shared libraries must be executable, and should be
7496                 # readonly to exploit a quirk in the memory manager.
7497                 INSTALL_LIB="-m 555"
7498                 ;;
7499         (interix*)
7500                 test "$cf_cv_shlib_version" = auto && cf_cv_shlib_version=rel
7501                 if test "$cf_cv_shlib_version" = rel; then
7502                         cf_shared_soname='`basename $[@] .${REL_VERSION}`.${ABI_VERSION}'
7503                 else
7504                         cf_shared_soname='`basename $[@]`'
7505                 fi
7506                 CC_SHARED_OPTS=
7507                 MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -Wl,-rpath,${RPATH_LIST} -Wl,-h,'$cf_shared_soname' -o $[@]'
7508                 ;;
7509         (irix*)
7510                 if test "$cf_cv_enable_rpath" = yes ; then
7511                         EXTRA_LDFLAGS="${cf_ld_rpath_opt}\${RPATH_LIST} $EXTRA_LDFLAGS"
7512                 fi
7513                 # tested with IRIX 5.2 and 'cc'.
7514                 if test "$GCC" != yes; then
7515                         CC_SHARED_OPTS='-KPIC'
7516                         MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -rdata_shared -soname `basename $[@]` -o $[@]'
7517                 else
7518                         MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -Wl,-soname,`basename $[@]` -o $[@]'
7519                 fi
7520                 cf_cv_rm_so_locs=yes
7521                 ;;
7522         (linux*|gnu*|k*bsd*-gnu)
7523                 if test "$DFT_LWR_MODEL" = "shared" && test -n "$LD_RPATH_OPT" ; then
7524                         LOCAL_LDFLAGS="${LD_RPATH_OPT}\$(LOCAL_LIBDIR)"
7525                         LOCAL_LDFLAGS2="$LOCAL_LDFLAGS"
7526                 fi
7527                 if test "$cf_cv_enable_rpath" = yes ; then
7528                         EXTRA_LDFLAGS="${cf_ld_rpath_opt}\${RPATH_LIST} $EXTRA_LDFLAGS"
7529                 fi
7530                 CF_SHARED_SONAME
7531                 MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -Wl,-soname,'$cf_cv_shared_soname',-stats,-lc -o $[@]'
7532                 ;;
7533         (mingw*msvc*)
7534                 cf_cv_shlib_version=msvcdll
7535                 cf_cv_shlib_version_infix=msvcdll
7536                 shlibdir=$bindir
7537                 MAKE_DLLS=
7538                 if test "$DFT_LWR_MODEL" = "shared" ; then
7539                         LOCAL_LDFLAGS="-link -dll"
7540                         LOCAL_LDFLAGS2="$LOCAL_LDFLAGS"
7541                         EXTRA_LDFLAGS="-link -dll $EXTRA_LDFLAGS"
7542                 fi
7543                 CC_SHARED_OPTS=
7544                 MK_SHARED_LIB=$SHELL' '$rel_builddir'/mk_shared_lib.sh [$]@ ${LD} [$]{CFLAGS}'
7545                 RM_SHARED_OPTS="$RM_SHARED_OPTS $rel_builddir/mk_shared_lib.sh *.dll.lib"
7546                 cat >mk_shared_lib.sh <<-CF_EOF
7547                 #!$SHELL
7548                 SHARED_LIB=\[$]1
7549                 IMPORT_LIB=\`echo "\[$]1" | sed -e 's/[[0-9]]*\.dll[$]/.dll.lib/'\`
7550                 shift
7551                 my_ld=\[$]1
7552                 shift
7553                 cat <<-EOF
7554                 Linking shared library
7555                 ** SHARED LIB \$SHARED_LIB
7556                 ** IMPORT_LIB \$IMPORT_LIB
7557 EOF
7558                 args=\$(echo \[$]* | sed -E "s#-l(\w*)#\1.dll.lib#g" | sed -E "s#-L(\w*)#-LIBPATH:\1#g")
7559                 exec \$my_ld -DLL -IMPLIB:"\${IMPORT_LIB}" -OUT:"\${SHARED_LIB}" ${LDFLAGS} \$args
7560                 mv "\${IMPORT_LIB}" "\${IMPORT_LIB}"
7561 CF_EOF
7562                 chmod +x mk_shared_lib.sh
7563                 cat >mk_prog.sh <<-CF_EOF
7564                 #!$SHELL
7565                 shift
7566                 # Ignore first argument (compiler) and use LD (link.exe) unconditionally
7567                 LD="[$]LD"
7568                 clopts=()
7569                 ldopts=("/subsystem:console")
7570                 libs=()
7571                 isdll=0
7572                 while test \[$]# -gt 0; do
7573                         case "\[$]1" in
7574                                 -link)
7575                                         # ignore -link argument
7576                                         ;;
7577                                 -M[[TD]] | -M[[TD]]d)
7578                                         # ignore runtime-library option
7579                                         ;;
7580                                 -dll)
7581                                         isdll=1
7582                                         ;;
7583                                 -W* | -w*)
7584                                         # ignore warnings
7585                                         ;;
7586                                 -D*)
7587                                         clopts+=("\[$]1")
7588                                         ;;
7589                                 -I*)
7590                                         clopts+=("\[$]1")
7591                                         ;;
7592                                 -l*)
7593                                         libs+=("\`echo \"\[$]1\" | sed \"s/^-l//\"\`")
7594                                         ;;
7595                                 -L*)
7596                                         ldopts+=("\`echo \"\[$]1\" | sed \"s/^-L/-LIBPATH:/\"\`")
7597                                         ;;
7598                                 *.obj | *.o)
7599                                         ldopts+=("\[$]1")
7600                                         ;;
7601                                 -Wl,*)
7602                                         for linkarg in \`echo '\[$]1' | sed -e 's/-Wl,//' -e 's/,/ /'\`; do
7603                                                 ldopts+=("\[$]{linkarg}")
7604                                         done
7605                                         ;;
7606                                 *.lib)
7607                                         ldopts+=("\[$]1")
7608                                         ;;
7609                                 -o)
7610                                         shift
7611                                         ldopts+=("-out:\[$]1")
7612                                         ;;
7613                                 *)
7614                                         clopts+=("\[$]1")
7615                                         ldopts+=("\[$]1")
7616                                         ;;
7617                         esac
7618                         shift
7619                 done
7620                 if [[ "\$isdll" -ne 0 ]]; then
7621                         for lib in \[$]{libs[[*]]}; do
7622                                 ldopts+=("\[$]lib.dll.lib")
7623                         done
7624                 else
7625                         for lib in \[$]{libs[[*]]}; do
7626                                 ldopts+=("\[$]lib.lib")
7627                         done
7628                 fi
7629                 cat <<-EOF
7630                 Creating program
7631                 ** ld options:   "\[$]{ldopts[[@]]}"
7632 EOF
7633                 exec \[$]LD \[$]{ldopts[[@]]}
7634 CF_EOF
7635                 chmod +x mk_prog.sh
7636                 LINK_PROGS="$SHELL ${rel_builddir}/mk_prog.sh"
7637                 LINK_TESTS="$SHELL ${rel_builddir}/mk_prog.sh"
7638                 ;;
7639         (mingw*)
7640                 cf_cv_shlib_version=mingw
7641                 cf_cv_shlib_version_infix=mingw
7642                 shlibdir=$bindir
7643                 MAKE_DLLS=
7644                 if test "$DFT_LWR_MODEL" = "shared" ; then
7645                         LOCAL_LDFLAGS="-Wl,--enable-auto-import"
7646                         LOCAL_LDFLAGS2="$LOCAL_LDFLAGS"
7647                         EXTRA_LDFLAGS="-Wl,--enable-auto-import $EXTRA_LDFLAGS"
7648                 fi
7649                 CC_SHARED_OPTS=
7650                 MK_SHARED_LIB=$SHELL' '$rel_builddir'/mk_shared_lib.sh [$]@ [$]{CC} [$]{CFLAGS}'
7651                 RM_SHARED_OPTS="$RM_SHARED_OPTS $rel_builddir/mk_shared_lib.sh *.dll.a"
7652                 cat >mk_shared_lib.sh <<-CF_EOF
7653                 #!$SHELL
7654                 SHARED_LIB=\[$]1
7655                 IMPORT_LIB=\`echo "\[$]1" | sed -e 's/[[0-9]]*\.dll[$]/.dll.a/'\`
7656                 shift
7657                 cat <<-EOF
7658                 Linking shared library
7659                 ** SHARED_LIB \[$]SHARED_LIB
7660                 ** IMPORT_LIB \[$]IMPORT_LIB
7661 EOF
7662                 exec \[$]* ${LDFLAGS} -shared -Wl,--enable-auto-import,--out-implib=\[$]{IMPORT_LIB} -Wl,--export-all-symbols -o \[$]{SHARED_LIB}
7663 CF_EOF
7664                 chmod +x mk_shared_lib.sh
7665                 ;;
7666         (openbsd[[2-9]].*|mirbsd*)
7667                 if test "$DFT_LWR_MODEL" = "shared" && test -n "$LD_RPATH_OPT" ; then
7668                         LOCAL_LDFLAGS="${LD_RPATH_OPT}\$(LOCAL_LIBDIR)"
7669                         LOCAL_LDFLAGS2="$LOCAL_LDFLAGS"
7670                 fi
7671                 if test "$cf_cv_enable_rpath" = yes ; then
7672                         EXTRA_LDFLAGS="${cf_ld_rpath_opt}\${RPATH_LIST} $EXTRA_LDFLAGS"
7673                 fi
7674                 CC_SHARED_OPTS="$CC_SHARED_OPTS -DPIC"
7675                 CF_SHARED_SONAME
7676                 MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -Wl,-Bshareable,-soname,'$cf_cv_shared_soname',-stats,-lc -o $[@]'
7677                 ;;
7678         (nskJ*)
7679                 CC_SHARED_OPTS=
7680                 MK_SHARED_LIB='${LD} -Wshared -Weld=-export_all -o $[@]'
7681                 ;;
7682         (nskL*)
7683                 CC_SHARED_OPTS=
7684                 MK_SHARED_LIB='${LD} -Wshared -Wxld=-export_all -o $[@]'
7685                 ;;
7686         (nto-qnx*|openbsd*|freebsd[[12]].*)
7687                 CC_SHARED_OPTS="$CC_SHARED_OPTS -DPIC"
7688                 MK_SHARED_LIB='${LD} ${LDFLAGS} -Bshareable -o $[@]'
7689                 test "$cf_cv_shlib_version" = auto && cf_cv_shlib_version=rel
7690                 ;;
7691         (dragonfly*|freebsd*)
7692                 CC_SHARED_OPTS="$CC_SHARED_OPTS -DPIC"
7693                 if test "$DFT_LWR_MODEL" = "shared" && test "$cf_cv_enable_rpath" = yes ; then
7694                         LOCAL_LDFLAGS="${cf_ld_rpath_opt}\$(LOCAL_LIBDIR)"
7695                         LOCAL_LDFLAGS2="${cf_ld_rpath_opt}\${RPATH_LIST} $LOCAL_LDFLAGS"
7696                         EXTRA_LDFLAGS="${cf_ld_rpath_opt}\${RPATH_LIST} $EXTRA_LDFLAGS"
7697                 fi
7698                 CF_SHARED_SONAME
7699                 MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -Wl,-soname,'$cf_cv_shared_soname',-stats,-lc -o $[@]'
7700                 ;;
7701         (netbsd*)
7702                 CC_SHARED_OPTS="$CC_SHARED_OPTS -DPIC"
7703                 if test "$DFT_LWR_MODEL" = "shared" && test "$cf_cv_enable_rpath" = yes ; then
7704                         LOCAL_LDFLAGS="${cf_ld_rpath_opt}\$(LOCAL_LIBDIR)"
7705                         LOCAL_LDFLAGS2="$LOCAL_LDFLAGS"
7706                         EXTRA_LDFLAGS="${cf_ld_rpath_opt}\${RPATH_LIST} $EXTRA_LDFLAGS"
7707                         if test "$cf_cv_shlib_version" = auto; then
7708                         if test -f /usr/libexec/ld.elf_so; then
7709                                 cf_cv_shlib_version=abi
7710                         else
7711                                 cf_cv_shlib_version=rel
7712                         fi
7713                         fi
7714                         CF_SHARED_SONAME
7715                         MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -Wl,-soname,'$cf_cv_shared_soname' -o $[@]'
7716                 else
7717                         MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -o $[@]'
7718                 fi
7719                 ;;
7720         (osf*|mls+*)
7721                 # tested with OSF/1 V3.2 and 'cc'
7722                 # tested with OSF/1 V3.2 and gcc 2.6.3 (but the c++ demo didn't
7723                 # link with shared libs).
7724                 MK_SHARED_LIB='${LD} ${LDFLAGS} -set_version ${REL_VERSION}:${ABI_VERSION} -expect_unresolved "*" -shared -soname `basename $[@]`'
7725                 case "$host_os" in
7726                 (osf4*)
7727                         MK_SHARED_LIB="${MK_SHARED_LIB} -msym"
7728                         ;;
7729                 esac
7730                 MK_SHARED_LIB="${MK_SHARED_LIB}"' -o $[@]'
7731                 if test "$DFT_LWR_MODEL" = "shared" && test -n "$LD_RPATH_OPT" ; then
7732                         LOCAL_LDFLAGS="${LD_RPATH_OPT}\$(LOCAL_LIBDIR)"
7733                         LOCAL_LDFLAGS2="$LOCAL_LDFLAGS"
7734                 fi
7735                 cf_cv_rm_so_locs=yes
7736                 ;;
7737         (sco3.2v5*)  # also uw2* and UW7: hops 13-Apr-98
7738                 # tested with osr5.0.5
7739                 if test "$GCC" != yes; then
7740                         CC_SHARED_OPTS='-belf -KPIC'
7741                 fi
7742                 MK_SHARED_LIB='${LD} ${LDFLAGS} -dy -G -h `basename $[@] .${REL_VERSION}`.${ABI_VERSION} -o [$]@'
7743                 if test "$cf_cv_enable_rpath" = yes ; then
7744                         # only way is to set LD_RUN_PATH but no switch for it
7745                         RUN_PATH=$libdir
7746                 fi
7747                 test "$cf_cv_shlib_version" = auto && cf_cv_shlib_version=rel
7748                 LINK_PROGS='LD_RUN_PATH=${libdir}'
7749                 LINK_TESTS='Pwd=`pwd`;LD_RUN_PATH=`dirname $${Pwd}`/lib'
7750                 ;;
7751         (sunos4*)
7752                 # tested with SunOS 4.1.1 and gcc 2.7.0
7753                 if test "$GCC" != yes; then
7754                         CC_SHARED_OPTS='-KPIC'
7755                 fi
7756                 MK_SHARED_LIB='${LD} ${LDFLAGS} -assert pure-text -o $[@]'
7757                 test "$cf_cv_shlib_version" = auto && cf_cv_shlib_version=rel
7758                 ;;
7759         (solaris2*)
7760                 # tested with SunOS 5.5.1 (solaris 2.5.1) and gcc 2.7.2
7761                 # tested with SunOS 5.10 (solaris 10) and gcc 3.4.3
7762                 if test "$DFT_LWR_MODEL" = "shared" ; then
7763                         LOCAL_LDFLAGS="-R \$(LOCAL_LIBDIR):\${libdir}"
7764                         LOCAL_LDFLAGS2="$LOCAL_LDFLAGS"
7765                 fi
7766                 if test "$cf_cv_enable_rpath" = yes ; then
7767                         EXTRA_LDFLAGS="-R \${libdir} $EXTRA_LDFLAGS"
7768                 fi
7769                 CF_SHARED_SONAME
7770                 if test "$GCC" != yes; then
7771                         cf_save_CFLAGS="$CFLAGS"
7772                         for cf_shared_opts in -xcode=pic32 -xcode=pic13 -KPIC -Kpic -O
7773                         do
7774                                 CFLAGS="$cf_shared_opts $cf_save_CFLAGS"
7775                                 AC_TRY_COMPILE([#include <stdio.h>],[printf("Hello\\n");],[break])
7776                         done
7777                         CFLAGS="$cf_save_CFLAGS"
7778                         CC_SHARED_OPTS=$cf_shared_opts
7779                         MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -dy -G -h '$cf_cv_shared_soname' -o $[@]'
7780                 else
7781                         MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -dy -G -h '$cf_cv_shared_soname' -o $[@]'
7782                 fi
7783                 ;;
7784         (sysv5uw7*|unix_sv*)
7785                 # tested with UnixWare 7.1.0 (gcc 2.95.2 and cc)
7786                 if test "$GCC" != yes; then
7787                         CC_SHARED_OPTS='-KPIC'
7788                 fi
7789                 MK_SHARED_LIB='${LD} ${LDFLAGS} -d y -G -o [$]@'
7790                 ;;
7791         (*)
7792                 CC_SHARED_OPTS='unknown'
7793                 MK_SHARED_LIB='echo unknown'
7794                 ;;
7795         esac
7796
7797         # This works if the last tokens in $MK_SHARED_LIB are the -o target.
7798         case "$cf_cv_shlib_version" in
7799         (rel|abi)
7800                 case "$MK_SHARED_LIB" in
7801                 (*'-o $[@]')
7802                         test "$cf_cv_do_symlinks" = no && cf_cv_do_symlinks=yes
7803                         ;;
7804                 (*)
7805                         AC_MSG_WARN(ignored --with-shlib-version)
7806                         ;;
7807                 esac
7808                 ;;
7809         esac
7810
7811         if test -n "$cf_try_cflags"
7812         then
7813 cat > conftest.$ac_ext <<EOF
7814 #line __oline__ "${as_me:-configure}"
7815 #include <stdio.h>
7816 int main(int argc, char *argv[[]])
7817 {
7818         printf("hello\\n");
7819         return (argv[[argc-1]] == 0) ;
7820 }
7821 EOF
7822                 cf_save_CFLAGS="$CFLAGS"
7823                 for cf_opt in $cf_try_cflags
7824                 do
7825                         CFLAGS="$cf_save_CFLAGS -$cf_opt"
7826                         AC_MSG_CHECKING(if CFLAGS option -$cf_opt works)
7827                         if AC_TRY_EVAL(ac_compile); then
7828                                 AC_MSG_RESULT(yes)
7829                                 cf_save_CFLAGS="$CFLAGS"
7830                         else
7831                                 AC_MSG_RESULT(no)
7832                         fi
7833                 done
7834                 CFLAGS="$cf_save_CFLAGS"
7835         fi
7836
7837
7838         # RPATH_LIST is a colon-separated list of directories
7839         test -n "$cf_ld_rpath_opt" && MK_SHARED_LIB="$MK_SHARED_LIB $cf_ld_rpath_opt\${RPATH_LIST}"
7840         test -z "$RPATH_LIST" && RPATH_LIST="\${libdir}"
7841
7842         test "$cf_cv_rm_so_locs" = yes && RM_SHARED_OPTS="$RM_SHARED_OPTS so_locations"
7843
7844         CF_VERBOSE(CC_SHARED_OPTS: $CC_SHARED_OPTS)
7845         CF_VERBOSE(MK_SHARED_LIB:  $MK_SHARED_LIB)
7846
7847         AC_SUBST(CC_SHARED_OPTS)
7848         AC_SUBST(LD_RPATH_OPT)
7849         AC_SUBST(LD_SHARED_OPTS)
7850         AC_SUBST(MK_SHARED_LIB)
7851         AC_SUBST(RM_SHARED_OPTS)
7852
7853         AC_SUBST(LINK_PROGS)
7854         AC_SUBST(LINK_TESTS)
7855
7856         AC_SUBST(EXTRA_LDFLAGS)
7857         AC_SUBST(LOCAL_LDFLAGS)
7858         AC_SUBST(LOCAL_LDFLAGS2)
7859
7860         AC_SUBST(INSTALL_LIB)
7861         AC_SUBST(RPATH_LIST)
7862 ])dnl
7863 dnl ---------------------------------------------------------------------------
7864 dnl CF_SHARED_SONAME version: 3 updated: 2008/09/08 18:34:43
7865 dnl ----------------
7866 dnl utility macro for CF_SHARED_OPTS, constructs "$cf_cv_shared_soname" for
7867 dnl substitution into MK_SHARED_LIB string for the "-soname" (or similar)
7868 dnl option.
7869 dnl
7870 dnl $1 is the default that should be used for "$cf_cv_shlib_version".
7871 dnl If missing, use "rel".
7872 define([CF_SHARED_SONAME],
7873 [
7874         test "$cf_cv_shlib_version" = auto && cf_cv_shlib_version=ifelse($1,,rel,$1)
7875         if test "$cf_cv_shlib_version" = rel; then
7876                 cf_cv_shared_soname='`basename $[@] .${REL_VERSION}`.${ABI_VERSION}'
7877         else
7878                 cf_cv_shared_soname='`basename $[@]`'
7879         fi
7880 ])
7881 dnl ---------------------------------------------------------------------------
7882 dnl CF_SIGWINCH version: 7 updated: 2023/02/18 17:41:25
7883 dnl -----------
7884 dnl Use this macro after CF_XOPEN_SOURCE, but do not require it (not all
7885 dnl programs need this test).
7886 dnl
7887 dnl This is really a Mac OS X 10.4.3 workaround.  Defining _POSIX_C_SOURCE
7888 dnl forces SIGWINCH to be undefined (breaks xterm, ncurses).  Oddly, the struct
7889 dnl winsize declaration is left alone - we may revisit this if Apple choose to
7890 dnl break that part of the interface as well.
7891 AC_DEFUN([CF_SIGWINCH],
7892 [
7893 AC_CACHE_CHECK(if SIGWINCH is defined,cf_cv_define_sigwinch,[
7894         AC_TRY_COMPILE([
7895 #include <sys/types.h>
7896 #include <sys/signal.h>
7897 ],[int x = SIGWINCH; (void)x],
7898         [cf_cv_define_sigwinch=yes],
7899         [AC_TRY_COMPILE([
7900 #undef _XOPEN_SOURCE
7901 #undef _POSIX_SOURCE
7902 #undef _POSIX_C_SOURCE
7903 #include <sys/types.h>
7904 #include <sys/signal.h>
7905 ],[int x = SIGWINCH; (void)x],
7906         [cf_cv_define_sigwinch=maybe],
7907         [cf_cv_define_sigwinch=no])
7908 ])
7909 ])
7910
7911 if test "$cf_cv_define_sigwinch" = maybe ; then
7912 AC_CACHE_CHECK(for actual SIGWINCH definition,cf_cv_fixup_sigwinch,[
7913 cf_cv_fixup_sigwinch=unknown
7914 cf_sigwinch=32
7915 while test "$cf_sigwinch" != 1
7916 do
7917         AC_TRY_COMPILE([
7918 #undef _XOPEN_SOURCE
7919 #undef _POSIX_SOURCE
7920 #undef _POSIX_C_SOURCE
7921 #include <sys/types.h>
7922 #include <sys/signal.h>
7923 ],[
7924 #if SIGWINCH != $cf_sigwinch
7925 #error SIGWINCH is not $cf_sigwinch
7926 #endif
7927 int x = SIGWINCH; (void)x],
7928         [cf_cv_fixup_sigwinch=$cf_sigwinch
7929          break])
7930
7931 cf_sigwinch="`expr "$cf_sigwinch" - 1`"
7932 done
7933 ])
7934
7935         if test "$cf_cv_fixup_sigwinch" != unknown ; then
7936                 CPPFLAGS="$CPPFLAGS -DSIGWINCH=$cf_cv_fixup_sigwinch"
7937         fi
7938 fi
7939 ])dnl
7940 dnl ---------------------------------------------------------------------------
7941 dnl CF_SIG_ATOMIC_T version: 5 updated: 2020/03/10 18:53:47
7942 dnl ---------------
7943 dnl signal handler, but there are some gcc dependencies in that recommendation.
7944 dnl Try anyway.
7945 AC_DEFUN([CF_SIG_ATOMIC_T],
7946 [
7947 AC_MSG_CHECKING(for signal global datatype)
7948 AC_CACHE_VAL(cf_cv_sig_atomic_t,[
7949         for cf_type in \
7950                 "volatile sig_atomic_t" \
7951                 "sig_atomic_t" \
7952                 "int"
7953         do
7954         AC_TRY_COMPILE([
7955 #include <sys/types.h>
7956 #include <signal.h>
7957 #include <stdio.h>
7958
7959 extern $cf_type x;
7960 $cf_type x;
7961 static void handler(int sig)
7962 {
7963         (void)sig;
7964         x = 5;
7965 }],
7966                 [signal(SIGINT, handler);
7967                  x = 1],
7968                 [cf_cv_sig_atomic_t=$cf_type],
7969                 [cf_cv_sig_atomic_t=no])
7970                 test "$cf_cv_sig_atomic_t" != no && break
7971         done
7972         ])
7973 AC_MSG_RESULT($cf_cv_sig_atomic_t)
7974 test "$cf_cv_sig_atomic_t" != no && AC_DEFINE_UNQUOTED(SIG_ATOMIC_T, $cf_cv_sig_atomic_t,[Define to signal global datatype])
7975 ])dnl
7976 dnl ---------------------------------------------------------------------------
7977 dnl CF_SIZECHANGE version: 18 updated: 2021/09/04 06:35:04
7978 dnl -------------
7979 dnl Check for definitions & structures needed for window size-changing
7980 dnl
7981 dnl https://stackoverflow.com/questions/18878141/difference-between-structures-ttysize-and-winsize/50769952#50769952
7982 AC_DEFUN([CF_SIZECHANGE],
7983 [
7984 AC_REQUIRE([CF_STRUCT_TERMIOS])
7985 AC_CACHE_CHECK(declaration of size-change, cf_cv_sizechange,[
7986         cf_cv_sizechange=unknown
7987         cf_save_CPPFLAGS="$CPPFLAGS"
7988
7989 for cf_opts in "" "NEED_PTEM_H"
7990 do
7991
7992         CPPFLAGS="$cf_save_CPPFLAGS"
7993         if test -n "$cf_opts"
7994         then
7995                 CF_APPEND_TEXT(CPPFLAGS,-D$cf_opts)
7996         fi
7997         AC_TRY_COMPILE([#include <sys/types.h>
7998 #ifdef HAVE_TERMIOS_H
7999 #include <termios.h>
8000 #else
8001 #ifdef HAVE_TERMIO_H
8002 #include <termio.h>
8003 #endif
8004 #endif
8005
8006 #ifdef NEED_PTEM_H
8007 /* This is a workaround for SCO:  they neglected to define struct winsize in
8008  * termios.h -- it is only in termio.h and ptem.h
8009  */
8010 #include <sys/stream.h>
8011 #include <sys/ptem.h>
8012 #endif
8013
8014 #ifdef HAVE_SYS_IOCTL_H
8015 #include <sys/ioctl.h>
8016 #endif
8017 ],[
8018 #ifdef TIOCGSIZE
8019         struct ttysize win;     /* SunOS 3.0... */
8020         int y = win.ts_lines = 2;
8021         int x = win.ts_cols = 1;
8022         (void)y;
8023         (void)x;
8024 #else
8025 #ifdef TIOCGWINSZ
8026         struct winsize win;     /* everything else */
8027         int y = win.ws_row = 2;
8028         int x = win.ws_col = 1;
8029         (void)y;
8030         (void)x;
8031 #else
8032         no TIOCGSIZE or TIOCGWINSZ
8033 #endif /* TIOCGWINSZ */
8034 #endif /* TIOCGSIZE */
8035         ],
8036         [cf_cv_sizechange=yes],
8037         [cf_cv_sizechange=no])
8038
8039         CPPFLAGS="$cf_save_CPPFLAGS"
8040         if test "$cf_cv_sizechange" = yes ; then
8041                 echo "size-change succeeded ($cf_opts)" >&AC_FD_CC
8042                 test -n "$cf_opts" && cf_cv_sizechange="$cf_opts"
8043                 break
8044         fi
8045 done
8046 ])
8047 if test "$cf_cv_sizechange" != no ; then
8048         AC_DEFINE(HAVE_SIZECHANGE,1,[Define to 1 if sizechange declarations are provided])
8049         case "$cf_cv_sizechange" in
8050         (NEED*)
8051                 AC_DEFINE_UNQUOTED($cf_cv_sizechange )
8052                 ;;
8053         esac
8054 fi
8055 ])dnl
8056 dnl ---------------------------------------------------------------------------
8057 dnl CF_SRC_MODULES version: 34 updated: 2023/04/22 11:51:06
8058 dnl --------------
8059 dnl For each parameter, test if the source-directory exists, and if it contains
8060 dnl a 'modules' file.  If so, add to the list $cf_cv_src_modules which we'll
8061 dnl use in CF_LIB_RULES.
8062 dnl
8063 dnl This uses the configured value to make the lists SRC_SUBDIRS and
8064 dnl SUB_MAKEFILES which are used in the makefile-generation scheme.
8065 AC_DEFUN([CF_SRC_MODULES],
8066 [
8067 AC_REQUIRE([CF_CHECK_GNAT_VERSION])
8068 AC_MSG_CHECKING(for src modules)
8069
8070 # dependencies and linker-arguments for test-programs
8071 TEST_DEPS="${LIB_DIR}/${LIB_PREFIX}${LIB_NAME}${DFT_DEP_SUFFIX} $TEST_DEPS"
8072 TEST_DEP2="${LIB_2ND}/${LIB_PREFIX}${LIB_NAME}${DFT_DEP_SUFFIX} $TEST_DEP2"
8073 if test "$DFT_LWR_MODEL" = "libtool"; then
8074         TEST_ARGS="${TEST_DEPS}"
8075         TEST_ARG2="${TEST_DEP2}"
8076 else
8077         TEST_ARGS="-l${LIB_NAME}${USE_ARG_SUFFIX} $TEST_ARGS"
8078         TEST_ARG2="-l${LIB_NAME}${USE_ARG_SUFFIX} $TEST_ARG2"
8079 fi
8080
8081 PC_MODULES_TO_MAKE="ncurses${USE_ARG_SUFFIX}"
8082 cf_cv_src_modules=
8083 for cf_dir in $1
8084 do
8085         if test -f "$srcdir/$cf_dir/modules" ; then
8086
8087                 if test -z "$cf_cv_src_modules"; then
8088                         cf_cv_src_modules=$cf_dir
8089                 else
8090                         cf_cv_src_modules="$cf_cv_src_modules $cf_dir"
8091                 fi
8092
8093                 # Make the ncurses_cfg.h file record the library interface files as
8094                 # well.  These are header files that are the same name as their
8095                 # directory.  Ncurses is the only library that does not follow
8096                 # that pattern.
8097                 if test -f "$srcdir/${cf_dir}/${cf_dir}.h" ; then
8098                         CF_UPPER(cf_have_include,$cf_dir)
8099                         AC_DEFINE_UNQUOTED(HAVE_${cf_have_include}_H)
8100                         AC_DEFINE_UNQUOTED(HAVE_LIB${cf_have_include})
8101                         CF_MAP_LIB_BASENAME(TEST_ROOT,$cf_dir)
8102                         TEST_DEPS="${LIB_DIR}/${LIB_PREFIX}${TEST_ROOT}${DFT_DEP_SUFFIX} $TEST_DEPS"
8103                         TEST_DEP2="${LIB_2ND}/${LIB_PREFIX}${TEST_ROOT}${DFT_DEP_SUFFIX} $TEST_DEP2"
8104                         if test "$DFT_LWR_MODEL" = "libtool"; then
8105                                 TEST_ARGS="${TEST_DEPS}"
8106                                 TEST_ARG2="${TEST_DEP2}"
8107                         else
8108                                 TEST_ARGS="-l${TEST_ROOT}${USE_ARG_SUFFIX} $TEST_ARGS"
8109                                 TEST_ARG2="-l${TEST_ROOT}${USE_ARG_SUFFIX} $TEST_ARG2"
8110                         fi
8111                         PC_MODULES_TO_MAKE="${PC_MODULES_TO_MAKE} ${cf_dir}${USE_ARG_SUFFIX}"
8112                 fi
8113         fi
8114 done
8115 AC_MSG_RESULT($cf_cv_src_modules)
8116
8117 TEST_ARGS="-L${LIB_DIR} $TEST_ARGS"
8118 TEST_ARG2="-L${LIB_2ND} $TEST_ARG2"
8119
8120 AC_SUBST(TEST_ARGS)
8121 AC_SUBST(TEST_DEPS)
8122
8123 AC_SUBST(TEST_ARG2)
8124 AC_SUBST(TEST_DEP2)
8125
8126 SRC_SUBDIRS=
8127 if test "x$cf_with_manpages" != xno ; then
8128         SRC_SUBDIRS="$SRC_SUBDIRS man"
8129 fi
8130 SRC_SUBDIRS="$SRC_SUBDIRS include"
8131 for cf_dir in $cf_cv_src_modules
8132 do
8133         SRC_SUBDIRS="$SRC_SUBDIRS $cf_dir"
8134 done
8135 if test "x$cf_with_tests" != "xno" ; then
8136         SRC_SUBDIRS="$SRC_SUBDIRS test"
8137 fi
8138 # always make this, to install the ncurses-config script
8139 SRC_SUBDIRS="$SRC_SUBDIRS misc"
8140 if test "$cf_with_cxx_binding" != no; then
8141         PC_MODULES_TO_MAKE="${PC_MODULES_TO_MAKE} ncurses++${USE_ARG_SUFFIX}"
8142         SRC_SUBDIRS="$SRC_SUBDIRS c++"
8143 fi
8144
8145 test "x$with_termlib" != xno && PC_MODULES_TO_MAKE="$PC_MODULES_TO_MAKE $TINFO_ARG_SUFFIX"
8146 test "x$with_ticlib" != xno && PC_MODULES_TO_MAKE="$PC_MODULES_TO_MAKE $TICS_ARG_SUFFIX"
8147
8148 AC_SUBST(PC_MODULES_TO_MAKE)
8149
8150 ADA_SUBDIRS=
8151 if test "x$cf_with_ada" = "xyes" && test "x$cf_cv_prog_gnat_correct" = xyes && test -f "$srcdir/Ada95/Makefile.in" ; then
8152         SRC_SUBDIRS="$SRC_SUBDIRS Ada95"
8153         ADA_SUBDIRS="gen src"
8154         if test "x$cf_with_tests" != "xno" ; then
8155                 ADA_SUBDIRS="$ADA_SUBDIRS samples"
8156         fi
8157 fi
8158
8159 SUB_MAKEFILES=
8160 for cf_dir in $SRC_SUBDIRS
8161 do
8162         SUB_MAKEFILES="$SUB_MAKEFILES $cf_dir/Makefile"
8163 done
8164
8165 if test -n "$ADA_SUBDIRS"; then
8166         for cf_dir in $ADA_SUBDIRS
8167         do
8168                 SUB_MAKEFILES="$SUB_MAKEFILES Ada95/$cf_dir/Makefile"
8169         done
8170         AC_SUBST(ADA_SUBDIRS)
8171 fi
8172 ])dnl
8173 dnl ---------------------------------------------------------------------------
8174 dnl CF_STDCPP_LIBRARY version: 12 updated: 2021/01/01 13:31:04
8175 dnl -----------------
8176 dnl Check for -lstdc++, which is GNU's standard C++ library.
8177 dnl If $CXXLIBS is set, add that to the libraries used for test-linking.
8178 dnl If -lstdc++ was not already added to $LIBS or $CXXLIBS, and is needed,
8179 dnl add it to $CXXLIBS.
8180 AC_DEFUN([CF_STDCPP_LIBRARY],
8181 [
8182 if test -n "$GXX" ; then
8183
8184         cf_save="$LIBS"
8185         LIBS="$LIBS $CXXLIBS"
8186         AC_MSG_CHECKING(if we already have C++ library)
8187         AC_TRY_LINK([
8188                         #include <iostream>],[
8189                         std::cout << "Hello World!" << std::endl;],
8190                 [cf_have_libstdcpp=yes],
8191                 [cf_have_libstdcpp=no])
8192         AC_MSG_RESULT($cf_have_libstdcpp)
8193         LIBS="$cf_save"
8194
8195         if test "$cf_have_libstdcpp" != yes
8196         then
8197                 case "$cf_cv_system_name" in
8198                 (os2*)
8199                         if test -z "`g++ -dM -E - < /dev/null | grep __KLIBC__`"; then
8200                                 cf_stdcpp_libname=stdcpp
8201                         else
8202                                 cf_stdcpp_libname=stdc++
8203                         fi
8204                         ;;
8205                 (*)
8206                         cf_stdcpp_libname=stdc++
8207                         ;;
8208                 esac
8209
8210                 AC_CACHE_CHECK(for library $cf_stdcpp_libname,cf_cv_libstdcpp,[
8211                         cf_save="$LIBS"
8212                         LIBS="$LIBS $CXXLIBS"
8213                         CF_ADD_LIB($cf_stdcpp_libname)
8214                 AC_TRY_LINK([
8215                                 #include <iostream>],[
8216                                 std::cout << "Hello World!" << std::endl;],
8217                         [cf_cv_libstdcpp=yes],
8218                         [cf_cv_libstdcpp=no])
8219                         LIBS="$cf_save"
8220                 ])
8221                 test "$cf_cv_libstdcpp" = yes && { CF_ADD_LIB($cf_stdcpp_libname,CXXLIBS) }
8222         fi
8223 fi
8224 ])dnl
8225 dnl ---------------------------------------------------------------------------
8226 dnl CF_STRIP_G_OPT version: 4 updated: 2021/01/02 09:31:20
8227 dnl --------------
8228 dnl     Remove "-g" option from the compiler options
8229 AC_DEFUN([CF_STRIP_G_OPT],
8230 [$1=`echo "${$1}" | CF__SED_TRIMBLANKS(-e 's%-g %%' -e 's%-g$%%')`])dnl
8231 dnl ---------------------------------------------------------------------------
8232 dnl CF_STRUCT_SIGACTION version: 5 updated: 2012/10/06 17:56:13
8233 dnl -------------------
8234 dnl Check if we need _POSIX_SOURCE defined to use struct sigaction.  We'll only
8235 dnl do this if we've found the sigaction function.
8236 AC_DEFUN([CF_STRUCT_SIGACTION],[
8237 AC_REQUIRE([CF_XOPEN_SOURCE])
8238
8239 if test "$ac_cv_func_sigaction" = yes; then
8240 AC_MSG_CHECKING(whether sigaction needs _POSIX_SOURCE)
8241 AC_TRY_COMPILE([
8242 #include <sys/types.h>
8243 #include <signal.h>],
8244         [struct sigaction act],
8245         [sigact_bad=no],
8246         [
8247 AC_TRY_COMPILE([
8248 #define _POSIX_SOURCE
8249 #include <sys/types.h>
8250 #include <signal.h>],
8251         [struct sigaction act],
8252         [sigact_bad=yes
8253          AC_DEFINE(_POSIX_SOURCE,1,[Define to 1 if we must define _POSIX_SOURCE])],
8254          [sigact_bad=unknown])])
8255 AC_MSG_RESULT($sigact_bad)
8256 fi
8257 ])dnl
8258 dnl ---------------------------------------------------------------------------
8259 dnl CF_STRUCT_TERMIOS version: 11 updated: 2020/03/19 20:46:13
8260 dnl -----------------
8261 dnl Some machines require _POSIX_SOURCE to completely define struct termios.
8262 AC_DEFUN([CF_STRUCT_TERMIOS],[
8263 AC_REQUIRE([CF_XOPEN_SOURCE])
8264
8265 AC_CHECK_HEADERS( \
8266 termio.h \
8267 termios.h \
8268 unistd.h \
8269 sys/ioctl.h \
8270 sys/termio.h \
8271 )
8272
8273 if test "$ac_cv_header_termios_h" = yes ; then
8274         case "$CFLAGS $CPPFLAGS" in
8275         (*-D_POSIX_SOURCE*)
8276                 termios_bad=dunno ;;
8277         (*)     termios_bad=maybe ;;
8278         esac
8279         if test "$termios_bad" = maybe ; then
8280         AC_MSG_CHECKING(whether termios.h needs _POSIX_SOURCE)
8281         AC_TRY_COMPILE([#include <termios.h>],
8282                 [struct termios foo; int x = foo.c_iflag = 1; (void)x],
8283                 termios_bad=no, [
8284                 AC_TRY_COMPILE([
8285 #define _POSIX_SOURCE
8286 #include <termios.h>],
8287                         [struct termios foo; int x = foo.c_iflag = 2; (void)x],
8288                         termios_bad=unknown,
8289                         termios_bad=yes AC_DEFINE(_POSIX_SOURCE,1,[Define to 1 if we must define _POSIX_SOURCE]))
8290                         ])
8291         AC_MSG_RESULT($termios_bad)
8292         fi
8293 fi
8294 ])dnl
8295 dnl ---------------------------------------------------------------------------
8296 dnl CF_SUBDIR_PATH version: 7 updated: 2014/12/04 04:33:06
8297 dnl --------------
8298 dnl Construct a search-list for a nonstandard header/lib-file
8299 dnl     $1 = the variable to return as result
8300 dnl     $2 = the package name
8301 dnl     $3 = the subdirectory, e.g., bin, include or lib
8302 AC_DEFUN([CF_SUBDIR_PATH],
8303 [
8304 $1=
8305
8306 CF_ADD_SUBDIR_PATH($1,$2,$3,$prefix,NONE)
8307
8308 for cf_subdir_prefix in \
8309         /usr \
8310         /usr/local \
8311         /usr/pkg \
8312         /opt \
8313         /opt/local \
8314         [$]HOME
8315 do
8316         CF_ADD_SUBDIR_PATH($1,$2,$3,$cf_subdir_prefix,$prefix)
8317 done
8318 ])dnl
8319 dnl ---------------------------------------------------------------------------
8320 dnl CF_SUBST_IF version: 2 updated: 2006/06/17 12:33:03
8321 dnl -----------
8322 dnl     Shorthand macro for substituting things that the user may override
8323 dnl     with an environment variable.
8324 dnl
8325 dnl     $1 = condition to pass to "test"
8326 dnl     $2 = environment variable
8327 dnl     $3 = value if the test succeeds
8328 dnl     $4 = value if the test fails
8329 AC_DEFUN([CF_SUBST_IF],
8330 [
8331 if test $1 ; then
8332         $2=$3
8333 ifelse($4,,,[else
8334         $2=$4])
8335 fi
8336 AC_SUBST($2)
8337 ])dnl
8338 dnl ---------------------------------------------------------------------------
8339 dnl CF_SUBST_NCURSES_VERSION version: 11 updated: 2023/01/07 16:32:06
8340 dnl ------------------------
8341 dnl Get the version-number for use in shared-library naming, etc.
8342 AC_DEFUN([CF_SUBST_NCURSES_VERSION],
8343 [AC_REQUIRE([AC_PROG_EGREP])dnl
8344
8345 NCURSES_MAJOR="`${EGREP-egrep} '^NCURSES_MAJOR[[        ]]*=' "$srcdir/dist.mk" | sed -e 's/^[[^0-9]]*//'`"
8346 NCURSES_MINOR="`${EGREP-egrep} '^NCURSES_MINOR[[        ]]*=' "$srcdir/dist.mk" | sed -e 's/^[[^0-9]]*//'`"
8347 NCURSES_PATCH="`${EGREP-egrep} '^NCURSES_PATCH[[        ]]*=' "$srcdir/dist.mk" | sed -e 's/^[[^0-9]]*//'`"
8348 cf_cv_abi_version=${NCURSES_MAJOR}
8349 cf_cv_abi_default=${NCURSES_MAJOR}
8350 cf_cv_rel_version=${NCURSES_MAJOR}.${NCURSES_MINOR}
8351 dnl Show the computed version, for logging
8352 cf_cv_timestamp=`date`
8353 AC_MSG_RESULT(Configuring NCURSES $cf_cv_rel_version ABI $cf_cv_abi_default ($cf_cv_timestamp))
8354 dnl We need these values in the generated headers
8355 AC_SUBST(NCURSES_MAJOR)
8356 AC_SUBST(NCURSES_MINOR)
8357 AC_SUBST(NCURSES_PATCH)
8358 dnl We need these values in the generated makefiles
8359 AC_SUBST(cf_cv_rel_version)
8360 AC_SUBST(cf_cv_abi_version)
8361 AC_SUBST(cf_cv_abi_default)
8362 AC_SUBST(cf_cv_builtin_bool)
8363 AC_SUBST(cf_cv_header_stdbool_h)
8364 AC_SUBST(cf_cv_type_of_bool)dnl
8365 ])dnl
8366 dnl ---------------------------------------------------------------------------
8367 dnl CF_SYS_TIME_SELECT version: 6 updated: 2015/04/18 08:56:57
8368 dnl ------------------
8369 dnl Check if we can include <sys/time.h> with <sys/select.h>; this breaks on
8370 dnl older SCO configurations.
8371 AC_DEFUN([CF_SYS_TIME_SELECT],
8372 [
8373 AC_MSG_CHECKING(if sys/time.h works with sys/select.h)
8374 AC_CACHE_VAL(cf_cv_sys_time_select,[
8375 AC_TRY_COMPILE([
8376 #include <sys/types.h>
8377 #ifdef HAVE_SYS_TIME_H
8378 #include <sys/time.h>
8379 #endif
8380 #ifdef HAVE_SYS_SELECT_H
8381 #include <sys/select.h>
8382 #endif
8383 ],[],[cf_cv_sys_time_select=yes],
8384          [cf_cv_sys_time_select=no])
8385          ])
8386 AC_MSG_RESULT($cf_cv_sys_time_select)
8387 test "$cf_cv_sys_time_select" = yes && AC_DEFINE(HAVE_SYS_TIME_SELECT,1,[Define to 1 if we can include <sys/time.h> with <sys/select.h>])
8388 ])dnl
8389 dnl ---------------------------------------------------------------------------
8390 dnl CF_TOP_BUILDDIR version: 2 updated: 2013/07/27 17:38:32
8391 dnl ---------------
8392 dnl Define a top_builddir symbol, for applications that need an absolute path.
8393 AC_DEFUN([CF_TOP_BUILDDIR],
8394 [
8395 top_builddir=ifelse($1,,`pwd`,$1)
8396 AC_SUBST(top_builddir)
8397 ])dnl
8398 dnl ---------------------------------------------------------------------------
8399 dnl CF_TRY_PKG_CONFIG version: 6 updated: 2020/12/31 10:54:15
8400 dnl -----------------
8401 dnl This is a simple wrapper to use for pkg-config, for libraries which may be
8402 dnl available in that form.
8403 dnl
8404 dnl $1 = package name, which may be a shell variable
8405 dnl $2 = extra logic to use, if any, after updating CFLAGS and LIBS
8406 dnl $3 = logic to use if pkg-config does not have the package
8407 AC_DEFUN([CF_TRY_PKG_CONFIG],[
8408 AC_REQUIRE([CF_PKG_CONFIG])
8409
8410 if test "$PKG_CONFIG" != none && "$PKG_CONFIG" --exists "$1"; then
8411         CF_VERBOSE(found package $1)
8412         cf_pkgconfig_incs="`$PKG_CONFIG --cflags "$1" 2>/dev/null`"
8413         cf_pkgconfig_libs="`$PKG_CONFIG --libs   "$1" 2>/dev/null`"
8414         CF_VERBOSE(package $1 CFLAGS: $cf_pkgconfig_incs)
8415         CF_VERBOSE(package $1 LIBS: $cf_pkgconfig_libs)
8416         CF_ADD_CFLAGS($cf_pkgconfig_incs)
8417         CF_ADD_LIBS($cf_pkgconfig_libs)
8418         ifelse([$2],,:,[$2])
8419 else
8420         cf_pkgconfig_incs=
8421         cf_pkgconfig_libs=
8422         ifelse([$3],,:,[$3])
8423 fi
8424 ])
8425 dnl ---------------------------------------------------------------------------
8426 dnl CF_TRY_XOPEN_SOURCE version: 4 updated: 2022/09/10 15:16:16
8427 dnl -------------------
8428 dnl If _XOPEN_SOURCE is not defined in the compile environment, check if we
8429 dnl can define it successfully.
8430 AC_DEFUN([CF_TRY_XOPEN_SOURCE],[
8431 AC_CACHE_CHECK(if we should define _XOPEN_SOURCE,cf_cv_xopen_source,[
8432         AC_TRY_COMPILE(CF__XOPEN_SOURCE_HEAD,CF__XOPEN_SOURCE_BODY,
8433         [cf_cv_xopen_source=no],
8434         [cf_save="$CPPFLAGS"
8435          CF_APPEND_TEXT(CPPFLAGS,-D_XOPEN_SOURCE=$cf_XOPEN_SOURCE)
8436          AC_TRY_COMPILE(CF__XOPEN_SOURCE_HEAD,CF__XOPEN_SOURCE_BODY,
8437                 [cf_cv_xopen_source=no],
8438                 [cf_cv_xopen_source=$cf_XOPEN_SOURCE])
8439                 CPPFLAGS="$cf_save"
8440         ])
8441 ])
8442
8443 if test "$cf_cv_xopen_source" != no ; then
8444         CF_REMOVE_DEFINE(CFLAGS,$CFLAGS,_XOPEN_SOURCE)
8445         CF_REMOVE_DEFINE(CPPFLAGS,$CPPFLAGS,_XOPEN_SOURCE)
8446         cf_temp_xopen_source="-D_XOPEN_SOURCE=$cf_cv_xopen_source"
8447         CF_APPEND_CFLAGS($cf_temp_xopen_source)
8448 fi
8449 ])
8450 dnl ---------------------------------------------------------------------------
8451 dnl CF_TYPEOF_CHTYPE version: 11 updated: 2023/01/05 17:57:59
8452 dnl ----------------
8453 dnl Determine the type we should use for chtype (and attr_t, which is treated
8454 dnl as the same thing).  We want around 32 bits, so on most machines want a
8455 dnl long, but on newer 64-bit machines, probably want an int.  If we're using
8456 dnl wide characters, we have to have a type compatible with that, as well.
8457 AC_DEFUN([CF_TYPEOF_CHTYPE],
8458 [
8459 AC_MSG_CHECKING([for type of chtype])
8460 AC_CACHE_VAL(cf_cv_typeof_chtype,[
8461                 AC_TRY_RUN([
8462 $ac_includes_default
8463 #define WANT_BITS 31
8464 int main(void)
8465 {
8466         FILE *fp = fopen("cf_test.out", "w");
8467         if (fp != 0) {
8468                 char *result = "long";
8469                 if (sizeof(unsigned long) > sizeof(unsigned int)) {
8470                         int n;
8471                         unsigned int x, y;
8472                         for (n = 0; n < WANT_BITS; n++) {
8473                                 x = (1 << n);
8474                                 y = (x >> n);
8475                                 if (y != 1 || x == 0) {
8476                                         x = 0;
8477                                         break;
8478                                 }
8479                         }
8480                         /*
8481                          * If x is nonzero, an int is big enough for the bits
8482                          * that we want.
8483                          */
8484                         result = (x != 0) ? "int" : "long";
8485                 }
8486                 fputs(result, fp);
8487                 fclose(fp);
8488         }
8489         ${cf_cv_main_return:-return}(0);
8490 }
8491                 ],
8492                 [cf_cv_typeof_chtype=`cat cf_test.out`],
8493                 [cf_cv_typeof_chtype=long],
8494                 [cf_cv_typeof_chtype=long])
8495                 rm -f cf_test.out
8496         ])
8497 AC_MSG_RESULT($cf_cv_typeof_chtype)
8498
8499 AC_SUBST(cf_cv_typeof_chtype)
8500 AC_DEFINE_UNQUOTED(TYPEOF_CHTYPE,$cf_cv_typeof_chtype,[Define to actual type if needed for chtype])
8501 ])dnl
8502 dnl ---------------------------------------------------------------------------
8503 dnl CF_TYPE_SIGACTION version: 4 updated: 2012/10/06 17:56:13
8504 dnl -----------------
8505 dnl
8506 AC_DEFUN([CF_TYPE_SIGACTION],
8507 [
8508 AC_MSG_CHECKING([for type sigaction_t])
8509 AC_CACHE_VAL(cf_cv_type_sigaction,[
8510         AC_TRY_COMPILE([
8511 #include <signal.h>],
8512                 [sigaction_t x],
8513                 [cf_cv_type_sigaction=yes],
8514                 [cf_cv_type_sigaction=no])])
8515 AC_MSG_RESULT($cf_cv_type_sigaction)
8516 test "$cf_cv_type_sigaction" = yes && AC_DEFINE(HAVE_TYPE_SIGACTION,1,[Define to 1 if we have the sigaction_t type])
8517 ])dnl
8518 dnl ---------------------------------------------------------------------------
8519 dnl CF_UNSIGNED_LITERALS version: 2 updated: 1998/02/07 22:10:16
8520 dnl --------------------
8521 dnl Test if the compiler supports 'U' and 'L' suffixes.  Only old compilers
8522 dnl won't, but they're still there.
8523 AC_DEFUN([CF_UNSIGNED_LITERALS],
8524 [
8525 AC_MSG_CHECKING([if unsigned literals are legal])
8526 AC_CACHE_VAL(cf_cv_unsigned_literals,[
8527         AC_TRY_COMPILE([],[long x = 1L + 1UL + 1U + 1],
8528                 [cf_cv_unsigned_literals=yes],
8529                 [cf_cv_unsigned_literals=no])
8530         ])
8531 AC_MSG_RESULT($cf_cv_unsigned_literals)
8532 ])dnl
8533 dnl ---------------------------------------------------------------------------
8534 dnl CF_UPPER version: 5 updated: 2001/01/29 23:40:59
8535 dnl --------
8536 dnl Make an uppercase version of a variable
8537 dnl $1=uppercase($2)
8538 AC_DEFUN([CF_UPPER],
8539 [
8540 $1=`echo "$2" | sed y%abcdefghijklmnopqrstuvwxyz./-%ABCDEFGHIJKLMNOPQRSTUVWXYZ___%`
8541 ])dnl
8542 dnl ---------------------------------------------------------------------------
8543 dnl CF_UTF8_LIB version: 10 updated: 2023/01/11 04:05:23
8544 dnl -----------
8545 dnl Check for multibyte support, and if not found, utf8 compatibility library
8546 AC_DEFUN([CF_UTF8_LIB],
8547 [
8548 AC_HAVE_HEADERS(wchar.h)
8549 AC_CACHE_CHECK(for multibyte character support,cf_cv_utf8_lib,[
8550         cf_save_LIBS="$LIBS"
8551         AC_TRY_LINK([
8552 $ac_includes_default
8553 #ifdef HAVE_WCHAR_H
8554 #include <wchar.h>
8555 #endif
8556 ],[putwc(0,0);],
8557         [cf_cv_utf8_lib=yes],
8558         [CF_FIND_LINKAGE([
8559 #include <libutf8.h>],[putwc(0,0);],utf8,
8560                 [cf_cv_utf8_lib=add-on],
8561                 [cf_cv_utf8_lib=no])
8562 ])])
8563
8564 # HAVE_LIBUTF8_H is used by ncurses if curses.h is shared between
8565 # ncurses/ncursesw:
8566 if test "$cf_cv_utf8_lib" = "add-on" ; then
8567         AC_DEFINE(HAVE_LIBUTF8_H,1,[Define to 1 if we should include libutf8.h])
8568         CF_ADD_INCDIR($cf_cv_header_path_utf8)
8569         CF_ADD_LIBDIR($cf_cv_library_path_utf8)
8570         CF_ADD_LIBS($cf_cv_library_file_utf8)
8571 fi
8572 ])dnl
8573 dnl ---------------------------------------------------------------------------
8574 dnl CF_VA_COPY version: 6 updated: 2018/12/04 18:14:25
8575 dnl ----------
8576 dnl check for va_copy, part of stdarg.h starting with ISO C 1999.
8577 dnl Also, workaround for glibc's __va_copy, by checking for both.
8578 dnl Finally, try to accommodate pre-ISO C 1999 headers.
8579 AC_DEFUN([CF_VA_COPY],[
8580 AC_CACHE_CHECK(for va_copy, cf_cv_have_va_copy,[
8581 AC_TRY_LINK([
8582 #include <stdarg.h>
8583 ],[
8584         static va_list dst;
8585         static va_list src;
8586         va_copy(dst, src)],
8587         cf_cv_have_va_copy=yes,
8588         cf_cv_have_va_copy=no)])
8589
8590 if test "$cf_cv_have_va_copy" = yes;
8591 then
8592         AC_DEFINE(HAVE_VA_COPY,1,[Define to 1 if we have va_copy])
8593 else # !cf_cv_have_va_copy
8594
8595 AC_CACHE_CHECK(for __va_copy, cf_cv_have___va_copy,[
8596 AC_TRY_LINK([
8597 #include <stdarg.h>
8598 ],[
8599         static va_list dst;
8600         static va_list src;
8601         __va_copy(dst, src)],
8602         cf_cv_have___va_copy=yes,
8603         cf_cv_have___va_copy=no)])
8604
8605 if test "$cf_cv_have___va_copy" = yes
8606 then
8607         AC_DEFINE(HAVE___VA_COPY,1,[Define to 1 if we have __va_copy])
8608 else # !cf_cv_have___va_copy
8609
8610 AC_CACHE_CHECK(for __builtin_va_copy, cf_cv_have___builtin_va_copy,[
8611 AC_TRY_LINK([
8612 #include <stdarg.h>
8613 ],[
8614         static va_list dst;
8615         static va_list src;
8616         __builtin_va_copy(dst, src)],
8617         cf_cv_have___builtin_va_copy=yes,
8618         cf_cv_have___builtin_va_copy=no)])
8619
8620 test "$cf_cv_have___builtin_va_copy" = yes &&
8621         AC_DEFINE(HAVE___BUILTIN_VA_COPY,1,[Define to 1 if we have __builtin_va_copy])
8622
8623 fi # cf_cv_have___va_copy
8624
8625 fi # cf_cv_have_va_copy
8626
8627 case "${cf_cv_have_va_copy}${cf_cv_have___va_copy}${cf_cv_have___builtin_va_copy}" in
8628 (*yes*)
8629         ;;
8630
8631 (*)
8632         AC_CACHE_CHECK(if we can simply copy va_list, cf_cv_pointer_va_list,[
8633 AC_TRY_LINK([
8634 #include <stdarg.h>
8635 ],[
8636         va_list dst;
8637         va_list src;
8638         dst = src],
8639         cf_cv_pointer_va_list=yes,
8640         cf_cv_pointer_va_list=no)])
8641
8642         if test "$cf_cv_pointer_va_list" = no
8643         then
8644                 AC_CACHE_CHECK(if we can copy va_list indirectly, cf_cv_array_va_list,[
8645 AC_TRY_LINK([
8646 #include <stdarg.h>
8647 ],[
8648         va_list dst;
8649         va_list src;
8650         *dst = *src],
8651                         cf_cv_array_va_list=yes,
8652                         cf_cv_array_va_list=no)])
8653                 test "$cf_cv_array_va_list" = yes && AC_DEFINE(ARRAY_VA_LIST,1,[Define to 1 if we can copy va_list indirectly])
8654         fi
8655         ;;
8656 esac
8657 ])
8658 dnl ---------------------------------------------------------------------------
8659 dnl CF_VERBOSE version: 3 updated: 2007/07/29 09:55:12
8660 dnl ----------
8661 dnl Use AC_VERBOSE w/o the warnings
8662 AC_DEFUN([CF_VERBOSE],
8663 [test -n "$verbose" && echo "   $1" 1>&AC_FD_MSG
8664 CF_MSG_LOG([$1])
8665 ])dnl
8666 dnl ---------------------------------------------------------------------------
8667 dnl CF_VERSION_INFO version: 8 updated: 2021/01/01 13:31:04
8668 dnl ---------------
8669 dnl Define several useful symbols derived from the VERSION file.  A separate
8670 dnl file is preferred to embedding the version numbers in various scripts.
8671 dnl (automake is a textbook-example of why the latter is a bad idea, but there
8672 dnl are others).
8673 dnl
8674 dnl The file contents are:
8675 dnl     libtool-version release-version patch-version
8676 dnl or
8677 dnl     release-version
8678 dnl where
8679 dnl     libtool-version (see ?) consists of 3 integers separated by '.'
8680 dnl     release-version consists of a major version and minor version
8681 dnl             separated by '.', optionally followed by a patch-version
8682 dnl             separated by '-'.  The minor version need not be an
8683 dnl             integer (but it is preferred).
8684 dnl     patch-version is an integer in the form yyyymmdd, so ifdef's and
8685 dnl             scripts can easily compare versions.
8686 dnl
8687 dnl If libtool is used, the first form is required, since CF_WITH_LIBTOOL
8688 dnl simply extracts the first field using 'cut -f1'.
8689 dnl
8690 dnl Optional parameters:
8691 dnl $1 = internal name for package
8692 dnl $2 = external name for package
8693 AC_DEFUN([CF_VERSION_INFO],
8694 [
8695 if test -f "$srcdir/VERSION" ; then
8696         AC_MSG_CHECKING(for package version)
8697
8698         # if there are not enough fields, cut returns the last one...
8699         cf_field1=`sed -e '2,$d' "$srcdir/VERSION" |cut -f1`
8700         cf_field2=`sed -e '2,$d' "$srcdir/VERSION" |cut -f2`
8701         cf_field3=`sed -e '2,$d' "$srcdir/VERSION" |cut -f3`
8702
8703         # this is how CF_BUNDLED_INTL uses $VERSION:
8704         VERSION="$cf_field1"
8705
8706         VERSION_MAJOR=`echo "$cf_field2" | sed -e 's/\..*//'`
8707         test -z "$VERSION_MAJOR" && AC_MSG_ERROR(missing major-version)
8708
8709         VERSION_MINOR=`echo "$cf_field2" | sed -e 's/^[[^.]]*\.//' -e 's/-.*//'`
8710         test -z "$VERSION_MINOR" && AC_MSG_ERROR(missing minor-version)
8711
8712         AC_MSG_RESULT(${VERSION_MAJOR}.${VERSION_MINOR})
8713
8714         AC_MSG_CHECKING(for package patch date)
8715         VERSION_PATCH=`echo "$cf_field3" | sed -e 's/^[[^-]]*-//'`
8716         case .$VERSION_PATCH in
8717         (.)
8718                 AC_MSG_ERROR(missing patch-date $VERSION_PATCH)
8719                 ;;
8720         (.[[0-9]][[0-9]][[0-9]][[0-9]][[0-9]][[0-9]][[0-9]][[0-9]])
8721                 ;;
8722         (*)
8723                 AC_MSG_ERROR(illegal patch-date $VERSION_PATCH)
8724                 ;;
8725         esac
8726         AC_MSG_RESULT($VERSION_PATCH)
8727 else
8728         AC_MSG_ERROR(did not find $srcdir/VERSION)
8729 fi
8730
8731 # show the actual data that we have for versions:
8732 CF_VERBOSE(ABI VERSION $VERSION)
8733 CF_VERBOSE(VERSION_MAJOR $VERSION_MAJOR)
8734 CF_VERBOSE(VERSION_MINOR $VERSION_MINOR)
8735 CF_VERBOSE(VERSION_PATCH $VERSION_PATCH)
8736
8737 AC_SUBST(VERSION)
8738 AC_SUBST(VERSION_MAJOR)
8739 AC_SUBST(VERSION_MINOR)
8740 AC_SUBST(VERSION_PATCH)
8741
8742 dnl if a package name is given, define its corresponding version info.  We
8743 dnl need the package name to ensure that the defined symbols are unique.
8744 ifelse($1,,,[
8745         cf_PACKAGE=$1
8746         PACKAGE=ifelse($2,,$1,$2)
8747         AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE",[Define to the package-name])
8748         AC_SUBST(PACKAGE)
8749         CF_UPPER(cf_PACKAGE,$cf_PACKAGE)
8750         AC_DEFINE_UNQUOTED(${cf_PACKAGE}_VERSION,"${VERSION_MAJOR}.${VERSION_MINOR}")
8751         AC_DEFINE_UNQUOTED(${cf_PACKAGE}_PATCHDATE,${VERSION_PATCH})
8752 ])
8753 ])dnl
8754 dnl ---------------------------------------------------------------------------
8755 dnl CF_WCHAR_TYPE version: 4 updated: 2012/10/06 16:39:58
8756 dnl -------------
8757 dnl Check if type wide-character type $1 is declared, and if so, which header
8758 dnl file is needed.  The second parameter is used to set a shell variable when
8759 dnl the type is not found.  The first parameter sets a shell variable for the
8760 dnl opposite sense.
8761 AC_DEFUN([CF_WCHAR_TYPE],
8762 [
8763 # This is needed on Tru64 5.0 to declare $1
8764 AC_CACHE_CHECK(if we must include wchar.h to declare $1,cf_cv_$1,[
8765 AC_TRY_COMPILE([
8766 #include <stdlib.h>
8767 #include <stdarg.h>
8768 #include <stdio.h>
8769 #ifdef HAVE_LIBUTF8_H
8770 #include <libutf8.h>
8771 #endif],
8772         [$1 state],
8773         [cf_cv_$1=no],
8774         [AC_TRY_COMPILE([
8775 #include <stdlib.h>
8776 #include <stdarg.h>
8777 #include <stdio.h>
8778 #include <wchar.h>
8779 #ifdef HAVE_LIBUTF8_H
8780 #include <libutf8.h>
8781 #endif],
8782         [$1 value],
8783         [cf_cv_$1=yes],
8784         [cf_cv_$1=unknown])])])
8785
8786 if test "$cf_cv_$1" = yes ; then
8787         AC_DEFINE(NEED_WCHAR_H,1,[Define to 1 if we must include wchar.h])
8788         NEED_WCHAR_H=1
8789 fi
8790
8791 ifelse([$2],,,[
8792 # if we do not find $1 in either place, use substitution to provide a fallback.
8793 if test "$cf_cv_$1" = unknown ; then
8794         $2=1
8795 fi
8796 ])
8797 ifelse($3,,,[
8798 # if we find $1 in either place, use substitution to provide a fallback.
8799 if test "$cf_cv_$1" != unknown ; then
8800         $3=1
8801 fi
8802 ])
8803 ])dnl
8804 dnl ---------------------------------------------------------------------------
8805 dnl CF_WEAK_SYMBOLS version: 1 updated: 2008/08/16 19:18:06
8806 dnl ---------------
8807 dnl Check for compiler-support for weak symbols.
8808 dnl This works with "recent" gcc.
8809 AC_DEFUN([CF_WEAK_SYMBOLS],[
8810 AC_CACHE_CHECK(if $CC supports weak symbols,cf_cv_weak_symbols,[
8811
8812 AC_TRY_COMPILE([
8813 #include <stdio.h>],
8814 [
8815 #if defined(__GNUC__)
8816 #  if defined __USE_ISOC99
8817 #    define _cat_pragma(exp)    _Pragma(#exp)
8818 #    define _weak_pragma(exp)   _cat_pragma(weak name)
8819 #  else
8820 #    define _weak_pragma(exp)
8821 #  endif
8822 #  define _declare(name)        __extension__ extern __typeof__(name) name
8823 #  define weak_symbol(name)     _weak_pragma(name) _declare(name) __attribute__((weak))
8824 #endif
8825
8826 weak_symbol(fopen);
8827 ],[cf_cv_weak_symbols=yes],[cf_cv_weak_symbols=no])
8828 ])
8829 ])dnl
8830 dnl ---------------------------------------------------------------------------
8831 dnl CF_WITH_ABI_ALTERED version: 1 updated: 2023/01/07 16:32:06
8832 dnl -------------------
8833 dnl Provide a way to override the displayed ABI version, e.g., in filenames.
8834 dnl Check this option after using the ABI version in configuration decisions.
8835 AC_DEFUN([CF_WITH_ABI_ALTERED],[
8836 AC_REQUIRE([CF_WITH_ABI_VERSION])
8837 AC_REQUIRE([CF_ABI_DEFAULTS])
8838 AC_ARG_WITH(abi-altered,
8839 [  --with-abi-altered=XXX  override visible ABI version, for packaging],[
8840         CF_NUMBER_SYNTAX($withval,ABI altered)
8841         if test "$cf_cv_abi_version" != "$withval"
8842         then
8843                 AC_MSG_WARN(altering visible ABI from $cf_cv_abi_version to $withval)
8844                 cf_cv_abi_version=$withval
8845         fi
8846 ])dnl
8847 ])dnl
8848 dnl ---------------------------------------------------------------------------
8849 dnl CF_WITH_ABI_VERSION version: 5 updated: 2023/01/07 16:32:06
8850 dnl -------------------
8851 dnl Allow library's ABI to be overridden.  Generally this happens when a
8852 dnl packager has incremented the ABI past that used in the original package,
8853 dnl and wishes to keep doing this.
8854 dnl
8855 dnl $1 is the package name, if any, to derive a corresponding {package}_ABI
8856 dnl symbol.
8857 AC_DEFUN([CF_WITH_ABI_VERSION],[
8858 test -z "$cf_cv_abi_version" && cf_cv_abi_version=0
8859 AC_ARG_WITH(abi-version,
8860 [  --with-abi-version=XXX  override derived ABI version],[
8861         if test "x$cf_cv_abi_version" != "x$withval"
8862         then
8863                 AC_MSG_WARN(overriding ABI version $cf_cv_abi_version to $withval)
8864                 case "$cf_cv_rel_version" in
8865                 (5.*)
8866                         cf_cv_rel_version=$withval.0
8867                         ;;
8868                 (6.*)
8869                         cf_cv_rel_version=$withval.9    # FIXME: should be 10 as of 6.0 release
8870                         ;;
8871                 esac
8872         fi
8873         cf_cv_abi_version=$withval])
8874         CF_NUMBER_SYNTAX($cf_cv_abi_version,ABI version)
8875 ifelse($1,,,[
8876 $1_ABI=$cf_cv_abi_version
8877 ])
8878 cf_cv_abi_default=$cf_cv_abi_version
8879 ])dnl
8880 dnl ---------------------------------------------------------------------------
8881 dnl CF_WITH_ADA_COMPILER version: 2 updated: 2010/06/26 17:35:58
8882 dnl --------------------
8883 dnl Command-line option to specify the Ada95 compiler.
8884 AC_DEFUN([CF_WITH_ADA_COMPILER],[
8885 AC_MSG_CHECKING(for ada-compiler)
8886 AC_ARG_WITH(ada-compiler,
8887         [  --with-ada-compiler=CMD specify Ada95 compiler command (default gnatmake)],
8888         [cf_ada_compiler=$withval],
8889         [cf_ada_compiler=gnatmake])
8890 AC_SUBST(cf_ada_compiler)
8891 AC_MSG_RESULT($cf_ada_compiler)
8892 ])dnl
8893 dnl ---------------------------------------------------------------------------
8894 dnl CF_WITH_ADA_INCLUDE version: 2 updated: 2010/06/26 17:35:58
8895 dnl -------------------
8896 dnl Command-line option to specify where Ada includes will install.
8897 AC_DEFUN([CF_WITH_ADA_INCLUDE],[
8898 AC_MSG_CHECKING(for ada-include)
8899 CF_WITH_PATH(ada-include,
8900    [  --with-ada-include=DIR  Ada includes are in DIR],
8901    ADA_INCLUDE,
8902    PREFIX/share/ada/adainclude,
8903    [$]prefix/share/ada/adainclude)
8904 AC_SUBST(ADA_INCLUDE)
8905 AC_MSG_RESULT($ADA_INCLUDE)
8906 ])dnl
8907 dnl ---------------------------------------------------------------------------
8908 dnl CF_WITH_ADA_LIBNAME version: 1 updated: 2019/09/07 18:59:41
8909 dnl -------------------
8910 dnl CF_WITH_ADA_LIBNAME
8911 dnl -------------------
8912 dnl Command-line option to specify how to name the resulting Ada library.
8913 dnl $1 = default value
8914 AC_DEFUN([CF_WITH_ADA_LIBNAME],[
8915 AC_MSG_CHECKING(for ada-libname)
8916 AC_ARG_WITH(ada-libname,
8917    [  --with-ada-libname=XXX  override default Ada library-name],
8918    ADA_LIBNAME=[$]withval,
8919    ADA_LIBNAME=$1)
8920 case "x$ADA_LIBNAME" in
8921 (x|xyes|xno)
8922         ADA_LIBNAME=$1
8923         ;;
8924 esac
8925 AC_SUBST(ADA_LIBNAME)
8926 AC_MSG_RESULT($ADA_LIBNAME)
8927 ])dnl
8928 dnl ---------------------------------------------------------------------------
8929 dnl CF_WITH_ADA_OBJECTS version: 2 updated: 2010/06/26 17:35:58
8930 dnl -------------------
8931 dnl Command-line option to specify where Ada objects will install.
8932 AC_DEFUN([CF_WITH_ADA_OBJECTS],[
8933 AC_MSG_CHECKING(for ada-objects)
8934 CF_WITH_PATH(ada-objects,
8935    [  --with-ada-objects=DIR  Ada objects are in DIR],
8936    ADA_OBJECTS,
8937    PREFIX/lib/ada/adalib,
8938    [$]prefix/lib/ada/adalib)
8939 AC_SUBST(ADA_OBJECTS)
8940 AC_MSG_RESULT($ADA_OBJECTS)
8941 ])dnl
8942 dnl ---------------------------------------------------------------------------
8943 dnl CF_WITH_ADA_SHAREDLIB version: 5 updated: 2018/07/21 19:10:35
8944 dnl ---------------------
8945 dnl Command-line option to specify if an Ada95 shared-library should be built,
8946 dnl and optionally what its soname should be.
8947 AC_DEFUN([CF_WITH_ADA_SHAREDLIB],[
8948 AC_REQUIRE([CF_GNAT_PROJECTS])
8949 AC_MSG_CHECKING(if an Ada95 shared-library should be built)
8950 AC_ARG_WITH(ada-sharedlib,
8951         [  --with-ada-sharedlib=soname build shared-library (requires GNAT projects)],
8952         [with_ada_sharedlib=$withval],
8953         [with_ada_sharedlib=no])
8954 AC_MSG_RESULT($with_ada_sharedlib)
8955
8956 if test "x$with_ada_sharedlib" != xno
8957 then
8958         if test "x$cf_gnat_projects" != xyes
8959         then
8960                 AC_MSG_WARN(disabling shared-library since GNAT projects are not supported)
8961                 with_ada_sharedlib=no
8962         fi
8963 fi
8964
8965 ADA_SHAREDLIB='lib$(LIB_NAME).so.1'
8966 MAKE_ADA_SHAREDLIB="#"
8967
8968 if test "x$with_ada_sharedlib" != xno
8969 then
8970         MAKE_ADA_SHAREDLIB=
8971         if test "x$with_ada_sharedlib" != xyes
8972         then
8973                 ADA_SHAREDLIB="$with_ada_sharedlib"
8974         fi
8975 fi
8976
8977 AC_SUBST(ADA_SHAREDLIB)
8978 AC_SUBST(MAKE_ADA_SHAREDLIB)
8979 ])dnl
8980 dnl ---------------------------------------------------------------------------
8981 dnl CF_WITH_DBMALLOC version: 7 updated: 2010/06/21 17:26:47
8982 dnl ----------------
8983 dnl Configure-option for dbmalloc.  The optional parameter is used to override
8984 dnl the updating of $LIBS, e.g., to avoid conflict with subsequent tests.
8985 AC_DEFUN([CF_WITH_DBMALLOC],[
8986 CF_NO_LEAKS_OPTION(dbmalloc,
8987         [  --with-dbmalloc         test: use Conor Cahill's dbmalloc library],
8988         [USE_DBMALLOC])
8989
8990 if test "$with_dbmalloc" = yes ; then
8991         AC_CHECK_HEADER(dbmalloc.h,
8992                 [AC_CHECK_LIB(dbmalloc,[debug_malloc]ifelse([$1],,[],[,$1]))])
8993 fi
8994 ])dnl
8995 dnl ---------------------------------------------------------------------------
8996 dnl CF_WITH_DMALLOC version: 7 updated: 2010/06/21 17:26:47
8997 dnl ---------------
8998 dnl Configure-option for dmalloc.  The optional parameter is used to override
8999 dnl the updating of $LIBS, e.g., to avoid conflict with subsequent tests.
9000 AC_DEFUN([CF_WITH_DMALLOC],[
9001 CF_NO_LEAKS_OPTION(dmalloc,
9002         [  --with-dmalloc          test: use Gray Watson's dmalloc library],
9003         [USE_DMALLOC])
9004
9005 if test "$with_dmalloc" = yes ; then
9006         AC_CHECK_HEADER(dmalloc.h,
9007                 [AC_CHECK_LIB(dmalloc,[dmalloc_debug]ifelse([$1],,[],[,$1]))])
9008 fi
9009 ])dnl
9010 dnl ---------------------------------------------------------------------------
9011 dnl CF_WITH_EXPORT_SYMS version: 3 updated: 2014/12/20 19:16:08
9012 dnl -------------------
9013 dnl Use this with libtool to specify the list of symbols that may be exported.
9014 dnl The input file contains one symbol per line; comments work with "#".
9015 dnl
9016 dnl $1 = basename of the ".sym" file (default $PACKAGE)
9017 AC_DEFUN([CF_WITH_EXPORT_SYMS],
9018 [
9019 AC_MSG_CHECKING(if exported-symbols file should be used)
9020 AC_ARG_WITH(export-syms,
9021         [  --with-export-syms=XXX  limit exported symbols using libtool],
9022         [with_export_syms=$withval],
9023         [with_export_syms=no])
9024 if test "x$with_export_syms" = xyes
9025 then
9026         with_export_syms='${top_srcdir}/package/ifelse($1,,${PACKAGE},[$1]).sym'
9027         AC_SUBST(PACKAGE)
9028 fi
9029 AC_MSG_RESULT($with_export_syms)
9030 if test "x$with_export_syms" != xno
9031 then
9032         EXPORT_SYMS="-export-symbols $with_export_syms"
9033         AC_SUBST(EXPORT_SYMS)
9034 fi
9035 ])dnl
9036 dnl ---------------------------------------------------------------------------
9037 dnl CF_WITH_GPM version: 10 updated: 2017/04/29 18:32:18
9038 dnl -----------
9039 dnl
9040 dnl The option parameter (if neither yes/no) is assumed to be the name of
9041 dnl the gpm library, e.g., for dynamic loading.
9042 AC_DEFUN([CF_WITH_GPM],
9043 [
9044 AC_MSG_CHECKING(if you want to link with the GPM mouse library)
9045 AC_ARG_WITH(gpm,
9046         [  --with-gpm              use Alessandro Rubini's GPM library],
9047         [with_gpm=$withval],
9048         [with_gpm=maybe])
9049 AC_MSG_RESULT($with_gpm)
9050
9051 if test "$with_gpm" != no ; then
9052         AC_CHECK_HEADER(gpm.h,[
9053                 AC_DEFINE(HAVE_GPM_H,1,[Define to 1 if we have gpm.h header])
9054                 if test "$with_gpm" != yes && test "$with_gpm" != maybe ; then
9055                         CF_VERBOSE(assuming we really have GPM library)
9056                         AC_DEFINE(HAVE_LIBGPM,1,[Define to 1 if we have the gpm library])
9057                         with_gpm=yes
9058                 else
9059                         AC_CHECK_LIB(gpm,Gpm_Open,[with_gpm=yes],[
9060                                 if test "$with_gpm" = maybe; then
9061                                         AC_MSG_WARN(Cannot link with GPM library)
9062                                         with_gpm=no
9063                                 else
9064                                         AC_MSG_ERROR(Cannot link with GPM library)
9065                                 fi
9066                         ])
9067                 fi
9068         ],[
9069                 test "$with_gpm" != maybe && AC_MSG_WARN(Cannot find GPM header)
9070                 with_gpm=no
9071         ])
9072 fi
9073 ])
9074 dnl ---------------------------------------------------------------------------
9075 dnl CF_WITH_LIBTOOL version: 36 updated: 2021/01/01 13:31:04
9076 dnl ---------------
9077 dnl Provide a configure option to incorporate libtool.  Define several useful
9078 dnl symbols for the makefile rules.
9079 dnl
9080 dnl The reference to AC_PROG_LIBTOOL does not normally work, since it uses
9081 dnl macros from libtool.m4 which is in the aclocal directory of automake.
9082 dnl Following is a simple script which turns on the AC_PROG_LIBTOOL macro.
9083 dnl But that still does not work properly since the macro is expanded outside
9084 dnl the CF_WITH_LIBTOOL macro:
9085 dnl
9086 dnl     #!/bin/sh
9087 dnl     ACLOCAL=`aclocal --print-ac-dir`
9088 dnl     if test -z "$ACLOCAL" ; then
9089 dnl             echo cannot find aclocal directory
9090 dnl             exit 1
9091 dnl     elif test ! -f $ACLOCAL/libtool.m4 ; then
9092 dnl             echo cannot find libtool.m4 file
9093 dnl             exit 1
9094 dnl     fi
9095 dnl
9096 dnl     LOCAL=aclocal.m4
9097 dnl     ORIG=aclocal.m4.orig
9098 dnl
9099 dnl     trap "mv $ORIG $LOCAL" 0 1 2 3 15
9100 dnl     rm -f $ORIG
9101 dnl     mv $LOCAL $ORIG
9102 dnl
9103 dnl     # sed the LIBTOOL= assignment to omit the current directory?
9104 dnl     sed -e 's/^LIBTOOL=.*/LIBTOOL=${LIBTOOL:-libtool}/' $ACLOCAL/libtool.m4 >>$LOCAL
9105 dnl     cat $ORIG >>$LOCAL
9106 dnl
9107 dnl     autoconf-257 $*
9108 dnl
9109 AC_DEFUN([CF_WITH_LIBTOOL],
9110 [
9111 AC_REQUIRE([CF_DISABLE_LIBTOOL_VERSION])
9112 ifdef([AC_PROG_LIBTOOL],,[
9113 LIBTOOL=
9114 ])
9115 # common library maintenance symbols that are convenient for libtool scripts:
9116 LIB_CREATE='${AR} -cr'
9117 LIB_OBJECT='${OBJECTS}'
9118 LIB_SUFFIX=.a
9119 LIB_PREP="$RANLIB"
9120
9121 # symbols used to prop libtool up to enable it to determine what it should be
9122 # doing:
9123 LIB_CLEAN=
9124 LIB_COMPILE=
9125 LIB_LINK='${CC}'
9126 LIB_INSTALL=
9127 LIB_UNINSTALL=
9128
9129 AC_MSG_CHECKING(if you want to build libraries with libtool)
9130 AC_ARG_WITH(libtool,
9131         [  --with-libtool          generate libraries with libtool],
9132         [with_libtool=$withval],
9133         [with_libtool=no])
9134 AC_MSG_RESULT($with_libtool)
9135 if test "$with_libtool" != "no"; then
9136 ifdef([AC_PROG_LIBTOOL],[
9137         # missing_content_AC_PROG_LIBTOOL{{
9138         AC_PROG_LIBTOOL
9139         # missing_content_AC_PROG_LIBTOOL}}
9140 ],[
9141         if test "$with_libtool" != "yes" ; then
9142                 CF_PATH_SYNTAX(with_libtool)
9143                 LIBTOOL=$with_libtool
9144         else
9145                 AC_CHECK_TOOLS(LIBTOOL,[libtool glibtool],none)
9146                 CF_LIBTOOL_VERSION
9147                 if test -z "$cf_cv_libtool_version" && test "$LIBTOOL" = libtool
9148                 then
9149                         CF_FORGET_TOOL(LIBTOOL)
9150                         AC_CHECK_TOOLS(LIBTOOL,[glibtool],none)
9151                         CF_LIBTOOL_VERSION
9152                 fi
9153         fi
9154         if test -z "$LIBTOOL" ; then
9155                 AC_MSG_ERROR(Cannot find libtool)
9156         fi
9157 ])dnl
9158         LIB_CREATE='${LIBTOOL} --mode=link ${CC} -rpath ${libdir} ${LIBTOOL_VERSION} `cut -f1 ${top_srcdir}/VERSION` ${LIBTOOL_OPTS} ${LT_UNDEF} $(LIBS) -o'
9159         LIB_OBJECT='${OBJECTS:.o=.lo}'
9160         LIB_SUFFIX=.la
9161         LIB_CLEAN='${LIBTOOL} --mode=clean'
9162         LIB_COMPILE='${LIBTOOL} --mode=compile'
9163         LIB_LINK='${LIBTOOL} --mode=link ${CC} ${LIBTOOL_OPTS}'
9164         LIB_INSTALL='${LIBTOOL} --mode=install'
9165         LIB_UNINSTALL='${LIBTOOL} --mode=uninstall'
9166         LIB_PREP=:
9167
9168         CF_CHECK_LIBTOOL_VERSION
9169
9170         # special hack to add -no-undefined (which libtool should do for itself)
9171         LT_UNDEF=
9172         case "$cf_cv_system_name" in
9173         (cygwin*|msys*|mingw32*|os2*|uwin*|aix[[4-7]])
9174                 LT_UNDEF=-no-undefined
9175                 ;;
9176         esac
9177         AC_SUBST([LT_UNDEF])
9178
9179         # special hack to add --tag option for C++ compiler
9180         case "$cf_cv_libtool_version" in
9181         (1.[[5-9]]*|[[2-9]].[[0-9.a-z]]*)
9182                 LIBTOOL_CXX="$LIBTOOL --tag=CXX"
9183                 LIBTOOL="$LIBTOOL --tag=CC"
9184                 ;;
9185         (*)
9186                 LIBTOOL_CXX="$LIBTOOL"
9187                 ;;
9188         esac
9189 else
9190         LIBTOOL=""
9191         LIBTOOL_CXX=""
9192 fi
9193
9194 test -z "$LIBTOOL" && ECHO_LT=
9195
9196 AC_SUBST(LIBTOOL)
9197 AC_SUBST(LIBTOOL_CXX)
9198 AC_SUBST(LIBTOOL_OPTS)
9199
9200 AC_SUBST(LIB_CREATE)
9201 AC_SUBST(LIB_OBJECT)
9202 AC_SUBST(LIB_SUFFIX)
9203 AC_SUBST(LIB_PREP)
9204
9205 AC_SUBST(LIB_CLEAN)
9206 AC_SUBST(LIB_COMPILE)
9207 AC_SUBST(LIB_LINK)
9208 AC_SUBST(LIB_INSTALL)
9209 AC_SUBST(LIB_UNINSTALL)
9210
9211 ])dnl
9212 dnl ---------------------------------------------------------------------------
9213 dnl CF_WITH_LIBTOOL_OPTS version: 4 updated: 2015/04/17 21:13:04
9214 dnl --------------------
9215 dnl Allow user to pass additional libtool options into the library creation
9216 dnl and link steps.  The main use for this is to do something like
9217 dnl     ./configure --with-libtool-opts=-static
9218 dnl to get the same behavior as automake-flavored
9219 dnl     ./configure --enable-static
9220 AC_DEFUN([CF_WITH_LIBTOOL_OPTS],[
9221 AC_MSG_CHECKING(for additional libtool options)
9222 AC_ARG_WITH(libtool-opts,
9223         [  --with-libtool-opts=XXX specify additional libtool options],
9224         [with_libtool_opts=$withval],
9225         [with_libtool_opts=no])
9226 AC_MSG_RESULT($with_libtool_opts)
9227
9228 case .$with_libtool_opts in
9229 (.yes|.no|.)
9230         ;;
9231 (*)
9232         LIBTOOL_OPTS="$LIBTOOL_OPTS $with_libtool_opts"
9233         ;;
9234 esac
9235
9236 AC_SUBST(LIBTOOL_OPTS)
9237 ])dnl
9238 dnl ---------------------------------------------------------------------------
9239 dnl CF_WITH_LIB_BASENAME version: 1 updated: 2020/03/07 20:05:14
9240 dnl --------------------
9241 dnl Allow for overriding the basename of a library, i.e., the part to which
9242 dnl prefixes/suffixes are attached.
9243 dnl
9244 dnl $1 = variable to set
9245 dnl $2 = option name
9246 dnl $3 = default basename for library, if omitted use $2
9247 AC_DEFUN([CF_WITH_LIB_BASENAME],
9248 [
9249 AC_MSG_CHECKING(for desired basename for $2 library)
9250 AC_ARG_WITH($2-libname,
9251         [  --with-$2-libname=XXX override ifelse($3,,$2,$3) basename of library],
9252         [with_lib_basename=$withval],
9253         [with_lib_basename=ifelse($3,,$2,$3)])
9254 $1="$with_lib_basename"
9255
9256 case "x[$]$1" in
9257 (x|xno|xnone|xyes)
9258         $1=ifelse($3,,$2,$3)
9259         ;;
9260 (*)
9261         ;;
9262 esac
9263
9264 AC_MSG_RESULT([$]$1)
9265 AC_SUBST($1)
9266 ])dnl
9267 dnl ---------------------------------------------------------------------------
9268 dnl CF_WITH_LIB_PREFIX version: 2 updated: 2021/01/01 16:53:59
9269 dnl ------------------
9270 dnl Allow the library-prefix to be overridden.  OS/2 EMX originally had no
9271 dnl "lib" prefix, e.g., because it used the dll naming convention.
9272 dnl
9273 dnl $1 = variable to set
9274 AC_DEFUN([CF_WITH_LIB_PREFIX],
9275 [
9276 AC_MSG_CHECKING(if you want to have a library-prefix)
9277 AC_ARG_WITH(lib-prefix,
9278         [  --with-lib-prefix       override library-prefix],
9279         [with_lib_prefix=$withval],
9280         [with_lib_prefix=auto])
9281 AC_MSG_RESULT($with_lib_prefix)
9282
9283 if test "$with_lib_prefix" = auto
9284 then
9285         CF_LIB_PREFIX($1)
9286 elif test "$with_lib_prefix" = no
9287 then
9288         LIB_PREFIX=
9289 else
9290         LIB_PREFIX=$with_lib_prefix
9291 fi
9292 ])dnl
9293 dnl ---------------------------------------------------------------------------
9294 dnl CF_WITH_PATH version: 12 updated: 2021/09/04 06:35:04
9295 dnl ------------
9296 dnl Wrapper for AC_ARG_WITH to ensure that user supplies a pathname, not just
9297 dnl defaulting to yes/no.
9298 dnl
9299 dnl $1 = option name
9300 dnl $2 = help-text
9301 dnl $3 = environment variable to set
9302 dnl $4 = default value, shown in the help-message, must be a constant
9303 dnl $5 = default value, if it is an expression & cannot be in the help-message
9304 dnl
9305 AC_DEFUN([CF_WITH_PATH],
9306 [AC_ARG_WITH($1,[$2 ](default: ifelse([$4],,empty,[$4])),,
9307 ifelse([$4],,[withval="${$3}"],[withval="${$3:-ifelse([$5],,[$4],[$5])}"]))dnl
9308 if ifelse([$5],,true,[test -n "$5"]) ; then
9309 CF_PATH_SYNTAX(withval)
9310 fi
9311 eval $3="$withval"
9312 AC_SUBST($3)dnl
9313 ])dnl
9314 dnl ---------------------------------------------------------------------------
9315 dnl CF_WITH_PATHLIST version: 13 updated: 2021/09/04 06:35:04
9316 dnl ----------------
9317 dnl Process an option specifying a list of colon-separated paths.
9318 dnl
9319 dnl $1 = option name
9320 dnl $2 = help-text
9321 dnl $3 = environment variable to set
9322 dnl $4 = default value, shown in the help-message, must be a constant
9323 dnl $5 = default value, if it is an expression & cannot be in the help-message
9324 dnl $6 = flag to tell if we want to define or substitute
9325 dnl
9326 AC_DEFUN([CF_WITH_PATHLIST],[
9327 AC_REQUIRE([CF_PATHSEP])
9328 AC_ARG_WITH($1,[$2 ](default: ifelse($4,,empty,$4)),,
9329 ifelse($4,,[withval=${$3}],[withval=${$3:-ifelse($5,,$4,$5)}]))dnl
9330
9331 IFS="${IFS:-    }"; ac_save_ifs="$IFS"; IFS="${PATH_SEPARATOR}"
9332 cf_dst_path=
9333 for cf_src_path in $withval
9334 do
9335   CF_PATH_SYNTAX(cf_src_path)
9336   test -n "$cf_dst_path" && cf_dst_path="${cf_dst_path}$PATH_SEPARATOR"
9337   cf_dst_path="${cf_dst_path}${cf_src_path}"
9338 done
9339 IFS="$ac_save_ifs"
9340
9341 ifelse($6,define,[
9342 # Strip single quotes from the value, e.g., when it was supplied as a literal
9343 # for $4 or $5.
9344 case "$cf_dst_path" in
9345 (\'*)
9346   cf_dst_path="`echo "$cf_dst_path" |sed -e s/\'// -e s/\'\$//`"
9347   ;;
9348 esac
9349 cf_dst_path=`echo "$cf_dst_path" | sed -e 's/\\\\/\\\\\\\\/g'`
9350 ])
9351
9352 # This may use the prefix/exec_prefix symbols which will only yield "NONE"
9353 # so we have to check/work around.  We do prefer the result of "eval"...
9354 eval cf_dst_eval="$cf_dst_path"
9355 case "x$cf_dst_eval" in
9356 (xNONE*)
9357         $3=$cf_dst_path
9358         ;;
9359 (*)
9360         $3="$cf_dst_eval"
9361         ;;
9362 esac
9363 AC_SUBST($3)dnl
9364
9365 ])dnl
9366 dnl ---------------------------------------------------------------------------
9367 dnl CF_WITH_PATH_PROG version: 1 updated: 2019/06/30 19:44:43
9368 dnl -----------------
9369 dnl Check for a given program, like CF_PATH_PROG, but allow override using a
9370 dnl "--with-xxx" option.
9371 dnl
9372 dnl Parameters:
9373 dnl             $1 = environment variable to set/update
9374 dnl             $2 = program name
9375 dnl             $3 = help-text
9376 dnl             $4 = $PATH
9377 AC_DEFUN([CF_WITH_PATH_PROG],[
9378 AC_ARG_WITH($2-path,
9379         [  --with-$2-path=XXX     specify path of $2 ifelse($3,,,$3)],
9380         [AC_MSG_CHECKING(for $2 program ifelse($3,,,$3))
9381                 $1=$withval
9382                 AC_MSG_RESULT([$]$1)
9383                 CF_PATH_SYNTAX($1)
9384         ],
9385         [CF_PATH_PROG($1,$2,,ifelse($4,,,$4))
9386                 if test -z "[$]$1"
9387                 then
9388                         AC_MSG_WARN(no $2 program found ifelse($3,,,$3))
9389                 fi
9390         ])
9391 ])
9392 dnl ---------------------------------------------------------------------------
9393 dnl CF_WITH_PCRE2 version: 6 updated: 2021/08/11 20:35:34
9394 dnl -------------
9395 dnl Add PCRE2 (Perl-compatible regular expressions v2) to the build if it is
9396 dnl available and the user requests it.  Assume the application will otherwise
9397 dnl use the POSIX interface.
9398 dnl
9399 dnl TODO allow $withval to specify package location
9400 AC_DEFUN([CF_WITH_PCRE2],
9401 [
9402 AC_REQUIRE([CF_PKG_CONFIG])
9403
9404 AC_MSG_CHECKING(if you want to use PCRE2 for regular-expressions)
9405 AC_ARG_WITH(pcre2,
9406         [  --with-pcre2            use PCRE2 for regular-expressions])
9407 test -z "$with_pcre2" && with_pcre2=no
9408 AC_MSG_RESULT($with_pcre2)
9409
9410 if test "x$with_pcre2" != xno ; then
9411         cf_with_pcre2_ok=no
9412         for cf_with_pcre2 in libpcre2 libpcre2-posix libpcre
9413         do
9414                 CF_TRY_PKG_CONFIG($cf_with_pcre2,[cf_with_pcre2_ok=yes; break])
9415         done
9416         cf_with_pcre2_ok=yes || AC_MSG_ERROR(Cannot find PCRE2 library)
9417
9418         AC_DEFINE(HAVE_LIB_PCRE2,1,[Define to 1 if we can/should compile with the PCRE2 library])
9419
9420         # if pkgconfig gave no results, look for the libraries directly
9421         case "$LIBS" in
9422         (*pcre2-posix*|*pcreposix*)
9423                 ;;
9424         (*)
9425                 AC_CHECK_LIB(pcre2-posix,regcomp,[
9426                         CF_ADD_LIB(pcre2-posix)],
9427                         [AC_CHECK_LIB(pcreposix,regcomp,[
9428                          CF_ADD_LIB(pcreposix)
9429                         ],[AC_MSG_ERROR(Cannot find PCRE2 POSIX library)])])
9430                 ;;
9431         esac
9432
9433         # either way, check for the library header files
9434         AC_CHECK_HEADERS(pcre2posix.h pcreposix.h)
9435         AC_CHECK_FUNCS(PCRE2regcomp)
9436 fi
9437 ])dnl
9438 dnl ---------------------------------------------------------------------------
9439 dnl CF_WITH_PKG_CONFIG_LIBDIR version: 21 updated: 2023/01/22 13:37:42
9440 dnl -------------------------
9441 dnl Allow the choice of the pkg-config library directory to be overridden.
9442 dnl
9443 dnl pkg-config uses a search-list built from these colon-separated lists of
9444 dnl directories:
9445 dnl a) $PKG_CONFIG_PATH (tested first, added if set)
9446 dnl b) $PKG_CONFIG_LIBDIR (tested second, added if set)
9447 dnl c) builtin-list (added if $PKG_CONFIG_LIBDIR is not set)
9448 dnl
9449 dnl pkgconf (used with some systems such as FreeBSD in place of pkg-config)
9450 dnl optionally ignores $PKG_CONFIG_LIBDIR.  Very old versions of pkg-config,
9451 dnl e.g., Solaris 10 also do not recognize $PKG_CONFIG_LIBDIR.
9452 AC_DEFUN([CF_WITH_PKG_CONFIG_LIBDIR],[
9453
9454 case "$PKG_CONFIG" in
9455 (no|none|yes)
9456         AC_MSG_CHECKING(for pkg-config library directory)
9457         ;;
9458 (*)
9459         AC_MSG_CHECKING(for $PKG_CONFIG library directory)
9460         ;;
9461 esac
9462
9463 # if $PKG_CONFIG_LIBDIR is set, try to use that
9464 if test -n "$PKG_CONFIG_PATH"; then
9465         cf_search_path=`echo "$PKG_CONFIG_PATH" | sed -e 's/:/ /g' -e 's,^[[    ]]*,,' -e 's,[[         ]]*$,,'`
9466 elif test -n "$PKG_CONFIG_LIBDIR"; then
9467         cf_search_path=`echo "$PKG_CONFIG_LIBDIR" | sed -e 's/:/ /g' -e 's,^[[  ]]*,,' -e 's,[[         ]]*$,,'`
9468 else
9469         cf_search_path=auto
9470 fi
9471
9472 # if the option is used, let that override.  otherwise default to "libdir"
9473 AC_ARG_WITH(pkg-config-libdir,
9474         [  --with-pkg-config-libdir=XXX use given directory for installing pc-files],
9475         [cf_search_path=$withval],
9476         [test "x$PKG_CONFIG" != xnone && test -z "$cf_search_path" && cf_search_path=libdir])
9477
9478 case "x$cf_search_path" in
9479 (xlibdir)
9480         PKG_CONFIG_LIBDIR='${libdir}/pkgconfig'
9481         AC_MSG_RESULT($PKG_CONFIG_LIBDIR)
9482         cf_search_path=
9483         ;;
9484 (x)
9485         ;;
9486 (x/*\ *)
9487         PKG_CONFIG_LIBDIR=
9488         ;;
9489 (x/*)
9490         PKG_CONFIG_LIBDIR="$cf_search_path"
9491         AC_MSG_RESULT($PKG_CONFIG_LIBDIR)
9492         cf_search_path=
9493         ;;
9494 (xyes|xauto)
9495         AC_MSG_RESULT(auto)
9496         cf_search_path=
9497         # Look for the library directory using the same prefix as the executable
9498         AC_MSG_CHECKING(for search-list)
9499         if test "x$PKG_CONFIG" != xnone
9500         then
9501                 # works for pkg-config since version 0.24 (2009)
9502                 # works for pkgconf since version 0.8.3 (2012)
9503                 for cf_pkg_program in \
9504                         `echo "$PKG_CONFIG" | sed -e 's,^.*/,,'` \
9505                         pkg-config \
9506                         pkgconf
9507                 do
9508                         cf_search_path=`"$PKG_CONFIG" --variable=pc_path "$cf_pkg_program" 2>/dev/null | tr : ' '`
9509                         test -n "$cf_search_path" && break
9510                 done
9511
9512                 # works for pkg-config since import in 2005 of original 2001 HP code.
9513                 test -z "$cf_search_path" && \
9514                 cf_search_path=`
9515                 "$PKG_CONFIG" --debug --exists no-such-package 2>&1 | $AWK "\
9516 /^Scanning directory (#[1-9][0-9]* )?'.*'$/{ \
9517         sub(\"^[[^']]*'\",\"\"); \
9518         sub(\"'.*\",\"\"); \
9519         printf \" %s\", \\[$]0; } \
9520 { next; } \
9521 "`
9522         fi
9523
9524         AC_MSG_RESULT($cf_search_path)
9525         ;;
9526 (*)
9527         AC_MSG_ERROR(Unexpected option value: $cf_search_path)
9528         ;;
9529 esac
9530
9531 if test -n "$cf_search_path"
9532 then
9533         AC_MSG_CHECKING(for first directory)
9534         cf_pkg_config_path=none
9535         for cf_config in $cf_search_path
9536         do
9537                 if test -d "$cf_config"
9538                 then
9539                         cf_pkg_config_path=$cf_config
9540                         break
9541                 fi
9542         done
9543         AC_MSG_RESULT($cf_pkg_config_path)
9544
9545         if test "x$cf_pkg_config_path" != xnone ; then
9546                 # limit this to the first directory found
9547                 PKG_CONFIG_LIBDIR="$cf_pkg_config_path"
9548         fi
9549
9550         if test -z "$PKG_CONFIG_LIBDIR" && test -n "$cf_search_path"
9551         then
9552                 AC_MSG_CHECKING(for workaround)
9553                 if test "$prefix" = "NONE" ; then
9554                         cf_prefix="$ac_default_prefix"
9555                 else
9556                         cf_prefix="$prefix"
9557                 fi
9558                 eval cf_libdir=$libdir
9559                 cf_libdir=`echo "$cf_libdir" | sed -e "s,^NONE,$cf_prefix,"`
9560                 cf_backup=
9561                 for cf_config in $cf_search_path
9562                 do
9563                         case $cf_config in
9564                         $cf_libdir/pkgconfig)
9565                                 PKG_CONFIG_LIBDIR=$cf_libdir/pkgconfig
9566                                 break
9567                                 ;;
9568                         *)
9569                                 test -z "$cf_backup" && cf_backup=$cf_config
9570                                 ;;
9571                         esac
9572                 done
9573                 test -z "$PKG_CONFIG_LIBDIR" && PKG_CONFIG_LIBDIR=$cf_backup
9574                 AC_MSG_RESULT($PKG_CONFIG_LIBDIR)
9575         fi
9576 fi
9577
9578 AC_SUBST(PKG_CONFIG_LIBDIR)
9579 ])dnl
9580 dnl ---------------------------------------------------------------------------
9581 dnl CF_WITH_PTHREAD version: 7 updated: 2015/04/18 08:56:57
9582 dnl ---------------
9583 dnl Check for POSIX thread library.
9584 AC_DEFUN([CF_WITH_PTHREAD],
9585 [
9586 AC_MSG_CHECKING(if you want to link with the pthread library)
9587 AC_ARG_WITH(pthread,
9588         [  --with-pthread          use POSIX thread library],
9589         [with_pthread=$withval],
9590         [with_pthread=no])
9591 AC_MSG_RESULT($with_pthread)
9592
9593 if test "$with_pthread" != no ; then
9594         AC_CHECK_HEADER(pthread.h,[
9595         AC_DEFINE(HAVE_PTHREADS_H,1,[Define to 1 if we have pthreads.h header])
9596
9597         for cf_lib_pthread in pthread c_r
9598         do
9599             AC_MSG_CHECKING(if we can link with the $cf_lib_pthread library)
9600             cf_save_LIBS="$LIBS"
9601             CF_ADD_LIB($cf_lib_pthread)
9602             AC_TRY_LINK([
9603 #include <pthread.h>
9604 ],[
9605                 int rc = pthread_create(0,0,0,0);
9606                 int r2 = pthread_mutexattr_settype(0, 0);
9607 ],[with_pthread=yes],[with_pthread=no])
9608             LIBS="$cf_save_LIBS"
9609             AC_MSG_RESULT($with_pthread)
9610             test "$with_pthread" = yes && break
9611         done
9612
9613         if test "$with_pthread" = yes ; then
9614             CF_ADD_LIB($cf_lib_pthread)
9615             AC_DEFINE(HAVE_LIBPTHREADS,1,[Define to 1 if we have pthreads library])
9616         else
9617             AC_MSG_ERROR(Cannot link with pthread library)
9618         fi
9619         ])
9620 fi
9621 ])
9622 dnl ---------------------------------------------------------------------------
9623 dnl CF_WITH_REL_VERSION version: 2 updated: 2023/05/06 18:18:18
9624 dnl -------------------
9625 dnl Allow library's release-version to be overridden.  Generally this happens when a
9626 dnl packager has incremented the release-version past that used in the original package,
9627 dnl and wishes to keep doing this.
9628 dnl
9629 dnl $1 is the package name, if any, to derive corresponding {package}_MAJOR
9630 dnl and {package}_MINOR symbols
9631 dnl symbol.
9632 AC_DEFUN([CF_WITH_REL_VERSION],[
9633 test -z "$cf_cv_rel_version" && cf_cv_rel_version=0.0
9634 AC_ARG_WITH(rel-version,
9635 [  --with-rel-version=XXX  override derived release version],
9636 [AC_MSG_WARN(overriding release version $cf_cv_rel_version to $withval)
9637  cf_cv_rel_version=$withval])
9638 ifelse($1,,[
9639  CF_NUMBER_SYNTAX($cf_cv_rel_version,Release version)
9640 ],[
9641  $1_MAJOR=`echo "$cf_cv_rel_version" | sed -e 's/\..*//'`
9642  $1_MINOR=`echo "$cf_cv_rel_version" | sed -e 's/^[[^.]]*//' -e 's/^\.//' -e 's/\..*//'`
9643  test -n "$1_MINOR" || $1_MINOR=0
9644  CF_NUMBER_SYNTAX([$]$1_MAJOR,Release major-version)
9645  CF_NUMBER_SYNTAX([$]$1_MINOR,Release minor-version)
9646 ])
9647 ])dnl
9648 dnl ---------------------------------------------------------------------------
9649 dnl CF_WITH_SYSMOUSE version: 3 updated: 2012/10/06 17:56:13
9650 dnl ----------------
9651 dnl If we can compile with sysmouse, make it available unless it is not wanted.
9652 AC_DEFUN([CF_WITH_SYSMOUSE],[
9653 # not everyone has "test -c"
9654 if test -c /dev/sysmouse 2>/dev/null ; then
9655 AC_MSG_CHECKING(if you want to use sysmouse)
9656 AC_ARG_WITH(sysmouse,
9657         [  --with-sysmouse         use sysmouse (FreeBSD console)],
9658         [cf_with_sysmouse=$withval],
9659         [cf_with_sysmouse=maybe])
9660         if test "$cf_with_sysmouse" != no ; then
9661         AC_TRY_COMPILE([
9662 #include <osreldate.h>
9663 #if (__FreeBSD_version >= 400017)
9664 #include <sys/consio.h>
9665 #include <sys/fbio.h>
9666 #else
9667 #include <machine/console.h>
9668 #endif
9669 ],[
9670         struct mouse_info the_mouse;
9671         ioctl(0, CONS_MOUSECTL, &the_mouse);
9672 ],[cf_with_sysmouse=yes],[cf_with_sysmouse=no])
9673         fi
9674 AC_MSG_RESULT($cf_with_sysmouse)
9675 test "$cf_with_sysmouse" = yes && AC_DEFINE(USE_SYSMOUSE,1,[Define to 1 if we can/should use the sysmouse interface])
9676 fi
9677 ])dnl
9678 dnl ---------------------------------------------------------------------------
9679 dnl CF_WITH_SYSTYPE version: 1 updated: 2013/01/26 16:26:12
9680 dnl ---------------
9681 dnl For testing, override the derived host system-type which is used to decide
9682 dnl things such as the linker commands used to build shared libraries.  This is
9683 dnl normally chosen automatically based on the type of system which you are
9684 dnl building on.  We use it for testing the configure script.
9685 dnl
9686 dnl This is different from the --host option: it is used only for testing parts
9687 dnl of the configure script which would not be reachable with --host since that
9688 dnl relies on the build environment being real, rather than mocked up.
9689 AC_DEFUN([CF_WITH_SYSTYPE],[
9690 CF_CHECK_CACHE([AC_CANONICAL_SYSTEM])
9691 AC_ARG_WITH(system-type,
9692         [  --with-system-type=XXX  test: override derived host system-type],
9693 [AC_MSG_WARN(overriding system type to $withval)
9694         cf_cv_system_name=$withval
9695         host_os=$withval
9696 ])
9697 ])dnl
9698 dnl ---------------------------------------------------------------------------
9699 dnl CF_WITH_VALGRIND version: 1 updated: 2006/12/14 18:00:21
9700 dnl ----------------
9701 AC_DEFUN([CF_WITH_VALGRIND],[
9702 CF_NO_LEAKS_OPTION(valgrind,
9703         [  --with-valgrind         test: use valgrind],
9704         [USE_VALGRIND])
9705 ])dnl
9706 dnl ---------------------------------------------------------------------------
9707 dnl CF_WITH_VERSIONED_SYMS version: 10 updated: 2021/01/04 18:48:01
9708 dnl ----------------------
9709 dnl Use this when building shared library with ELF, to markup symbols with the
9710 dnl version identifier from the given input file.  Generally that identifier is
9711 dnl the same as the SONAME at which the symbol was first introduced.
9712 dnl
9713 dnl $1 = basename of the ".map" file (default $PACKAGE)
9714 AC_DEFUN([CF_WITH_VERSIONED_SYMS],
9715 [AC_REQUIRE([AC_PROG_FGREP])dnl
9716 AC_REQUIRE([AC_PROG_EGREP])dnl
9717
9718 AC_MSG_CHECKING(if versioned-symbols file should be used)
9719 AC_ARG_WITH(versioned-syms,
9720         [  --with-versioned-syms=X markup versioned symbols using ld],
9721         [with_versioned_syms=$withval],
9722         [with_versioned_syms=no])
9723 case "x$with_versioned_syms" in
9724 (xyes)
9725         with_versioned_syms='${top_srcdir}/package/ifelse($1,,${PACKAGE},[$1]).map'
9726         AC_SUBST(PACKAGE)
9727         ;;
9728 (xno)
9729         ;;
9730 (x/*)
9731         test -f "$with_versioned_syms" || AC_MSG_ERROR(expected a filename: $with_versioned_syms)
9732         ;;
9733 (*)
9734         test -f "$with_versioned_syms" || AC_MSG_ERROR(expected a filename: $with_versioned_syms)
9735         with_versioned_syms=`pwd`/"$with_versioned_syms"
9736         ;;
9737 esac
9738 AC_MSG_RESULT($with_versioned_syms)
9739
9740 RESULTING_SYMS=
9741 VERSIONED_SYMS=
9742 WILDCARD_SYMS=
9743
9744 if test "x$with_versioned_syms" != xno
9745 then
9746         RESULTING_SYMS=$with_versioned_syms
9747         case "x$MK_SHARED_LIB" in
9748         (*-Wl,*)
9749                 VERSIONED_SYMS="-Wl,--version-script,\${RESULTING_SYMS}"
9750                 MK_SHARED_LIB=`echo "$MK_SHARED_LIB" | sed -e "s%-Wl,%\\[$]{VERSIONED_SYMS} -Wl,%"`
9751                 CF_VERBOSE(MK_SHARED_LIB:  $MK_SHARED_LIB)
9752                 ;;
9753         (*-dy\ *)
9754                 VERSIONED_SYMS="-Wl,-M,\${RESULTING_SYMS}"
9755                 MK_SHARED_LIB=`echo "$MK_SHARED_LIB" | sed -e "s%-dy%\\[$]{VERSIONED_SYMS} -dy%"`
9756                 CF_VERBOSE(MK_SHARED_LIB:  $MK_SHARED_LIB)
9757                 ;;
9758         (*)
9759                 AC_MSG_WARN(this system does not support versioned-symbols)
9760                 ;;
9761         esac
9762
9763         # Linux ld can selectively override scope, e.g., of symbols beginning with
9764         # "_" by first declaring some as global, and then using a wildcard to
9765         # declare the others as local.  Some other loaders cannot do this.  Check
9766         # by constructing a (very) simple shared library and inspecting its
9767         # symbols.
9768         if test "x$VERSIONED_SYMS" != "x"
9769         then
9770                 AC_MSG_CHECKING(if wildcards can be used to selectively omit symbols)
9771                 WILDCARD_SYMS=no
9772
9773                 # make sources
9774                 rm -f conftest.*
9775
9776                 cat >conftest.ver <<EOF
9777 module_1.0 {
9778 global:
9779         globalf1;
9780 local:
9781         localf1;
9782 };
9783 module_2.0 {
9784 global:
9785         globalf2;
9786 local:
9787         localf2;
9788         _*;
9789 } module_1.0;
9790 submodule_1.0 {
9791 global:
9792         subglobalf1;
9793         _ismissing;
9794 local:
9795         sublocalf1;
9796 };
9797 submodule_2.0 {
9798 global:
9799         subglobalf2;
9800 local:
9801         sublocalf2;
9802         _*;
9803 } submodule_1.0;
9804 EOF
9805                 cat >conftest.$ac_ext <<EOF
9806 #line __oline__ "configure"
9807 int     _ismissing(void) { return 1; }
9808 int     _localf1(void) { return 1; }
9809 int     _localf2(void) { return 2; }
9810 int     globalf1(void) { return 1; }
9811 int     globalf2(void) { return 2; }
9812 int     _sublocalf1(void) { return 1; }
9813 int     _sublocalf2(void) { return 2; }
9814 int     subglobalf1(void) { return 1; }
9815 int     subglobalf2(void) { return 2; }
9816 EOF
9817                 cat >conftest.mk <<EOF
9818 CC=${CC}
9819 CFLAGS=${CFLAGS}
9820 CPPFLAGS=${CPPFLAGS}
9821 LDFLAGS=${LDFLAGS}
9822 LIBS=${LIBS}
9823 VERSIONED_SYMS=${VERSIONED_SYMS}
9824 RESULTING_SYMS=conftest.ver
9825 MK_SHARED_LIB=${MK_SHARED_LIB}
9826 conftest.so: conftest.$ac_cv_objext
9827                 \$(MK_SHARED_LIB) conftest.$ac_cv_objext
9828 EOF
9829
9830                 # compile source, make library
9831                 if make -f conftest.mk 2>&AC_FD_CC >/dev/null
9832                 then
9833                         # test for missing symbol in either Data or Text section
9834                         cf_missing="`nm -P conftest.so 2>&AC_FD_CC |${FGREP-fgrep} _ismissing | ${EGREP-egrep} '[[      ]][[DT]][[      ]]'`"
9835                         test -n "$cf_missing" && WILDCARD_SYMS=yes
9836                 fi
9837                 AC_MSG_RESULT($WILDCARD_SYMS)
9838                 rm -f conftest.*
9839         fi
9840 fi
9841 AC_SUBST(RESULTING_SYMS)
9842 AC_SUBST(VERSIONED_SYMS)
9843 AC_SUBST(WILDCARD_SYMS)
9844 ])dnl
9845 dnl ---------------------------------------------------------------------------
9846 dnl CF_WITH_X11_RGB version: 2 updated: 2019/12/31 08:53:54
9847 dnl ---------------
9848 dnl Handle configure option "--with-x11-rgb", setting these shell
9849 dnl variables:
9850 dnl
9851 dnl $RGB_PATH is the option value, used for finding the X11 rgb file.
9852 dnl $no_x11_rgb is a "#" (comment) if "--without-x11-rgb" is given.
9853 dnl
9854 dnl Most Linux's use this:
9855 dnl     /usr/share/X11/rgb.txt
9856 dnl Debian uses this:
9857 dnl     /etc/X11/rgb.txt
9858 dnl DragonFlyBSD ports uses this:
9859 dnl     /usr/pkg/lib/X11/rgb.txt
9860 dnl FreeBSD ports use these:
9861 dnl     /usr/local/lib/X11/rgb.txt
9862 dnl     /usr/local/share/X11/rgb.txt
9863 dnl Mandriva has these:
9864 dnl     /usr/lib/X11/rgb.txt
9865 dnl     /usr/lib64/X11/rgb.txt
9866 dnl NetBSD has these
9867 dnl     /usr/X11R7/lib/X11/rgb.txt
9868 dnl OpenSolaris uses
9869 dnl     32-bit:
9870 dnl     /usr/X11/etc/X11/rgb.txt
9871 dnl     /usr/X11/share/X11/rgb.txt
9872 dnl     /usr/X11/lib/X11/rgb.txt
9873 dnl OSX uses
9874 dnl             /opt/local/share/X11/rgb.txt (MacPorts)
9875 dnl             /opt/X11/share/X11/rgb.txt (non-ports)
9876 dnl     64-bit:
9877 dnl     /usr/X11/etc/X11/rgb.txt
9878 dnl     /usr/X11/share/X11/rgb.txt (perhaps)
9879 dnl     /usr/X11/lib/amd64/X11/rgb.txt
9880 dnl Solaris10 uses (in this order):
9881 dnl     /usr/openwin/lib/X11/rgb.txt
9882 dnl     /usr/X11/lib/X11/rgb.txt
9883 AC_DEFUN([CF_WITH_X11_RGB],[
9884 AC_MSG_CHECKING(for X11 rgb file)
9885 AC_ARG_WITH(x11-rgb,
9886         [  --with-x11-rgb=FILE   file containing X11 rgb information (EPREFIX/lib/X11/rgb.txt)],
9887         [RGB_PATH=$withval],
9888         [RGB_PATH=auto])
9889
9890 if test "x[$]RGB_PATH" = xauto
9891 then
9892         RGB_PATH='${exec_prefix}/lib/X11/rgb.txt'
9893         for cf_path in \
9894                 /opt/local/share/X11/rgb.txt \
9895                 /opt/X11/share/X11/rgb.txt \
9896                 /usr/share/X11/rgb.txt \
9897                 /usr/X11/share/X11/rgb.txt \
9898                 /usr/X11/lib/X11/rgb.txt \
9899                 /usr/lib/X11/rgb.txt \
9900                 /etc/X11/rgb.txt \
9901                 /usr/pkg/lib/X11/rgb.txt \
9902                 /usr/X11R7/lib/X11/rgb.txt \
9903                 /usr/X11R6/lib/X11/rgb.txt \
9904                 /usr/X11R5/lib/X11/rgb.txt \
9905                 /usr/X11R4/lib/X11/rgb.txt \
9906                 /usr/local/lib/X11/rgb.txt \
9907                 /usr/local/share/X11/rgb.txt \
9908                 /usr/lib64/X11/rgb.txt
9909         do
9910                 if test -f "$cf_path" ; then
9911                         RGB_PATH="$cf_path"
9912                         break
9913                 fi
9914         done
9915 else
9916         cf_path=$RGB_PATH
9917         CF_PATH_SYNTAX(cf_path)
9918 fi
9919
9920 AC_MSG_RESULT($RGB_PATH)
9921 AC_SUBST(RGB_PATH)
9922 AC_DEFINE_UNQUOTED(RGB_PATH,"$cf_path",[Define to the full pathname of rgb.txt])
9923
9924 no_x11_rgb=
9925 if test "$RGB_PATH" = no
9926 then
9927         no_x11_rgb="#"
9928 fi
9929 AC_SUBST(no_x11_rgb)
9930 ])dnl
9931 dnl ---------------------------------------------------------------------------
9932 dnl CF_XOPEN_SOURCE version: 66 updated: 2023/04/03 04:19:37
9933 dnl ---------------
9934 dnl Try to get _XOPEN_SOURCE defined properly that we can use POSIX functions,
9935 dnl or adapt to the vendor's definitions to get equivalent functionality,
9936 dnl without losing the common non-POSIX features.
9937 dnl
9938 dnl Parameters:
9939 dnl     $1 is the nominal value for _XOPEN_SOURCE
9940 dnl     $2 is the nominal value for _POSIX_C_SOURCE
9941 dnl
9942 dnl The default case prefers _XOPEN_SOURCE over _POSIX_C_SOURCE if the
9943 dnl implementation predefines it, because X/Open and most implementations agree
9944 dnl that the latter is a legacy or "aligned" value.
9945 dnl
9946 dnl Because _XOPEN_SOURCE is preferred, if defining _POSIX_C_SOURCE turns
9947 dnl that off, then refrain from setting _POSIX_C_SOURCE explicitly.
9948 dnl
9949 dnl References:
9950 dnl https://pubs.opengroup.org/onlinepubs/007904975/functions/xsh_chap02_02.html
9951 dnl https://docs.oracle.com/cd/E19253-01/816-5175/standards-5/index.html
9952 dnl https://www.gnu.org/software/libc/manual/html_node/Feature-Test-Macros.html
9953 AC_DEFUN([CF_XOPEN_SOURCE],[
9954 AC_REQUIRE([AC_CANONICAL_HOST])
9955 AC_REQUIRE([CF_POSIX_VISIBLE])
9956
9957 if test "$cf_cv_posix_visible" = no; then
9958
9959 cf_XOPEN_SOURCE=ifelse([$1],,500,[$1])
9960 cf_POSIX_C_SOURCE=ifelse([$2],,199506L,[$2])
9961 cf_xopen_source=
9962
9963 case "$host_os" in
9964 (aix[[4-7]]*)
9965         cf_xopen_source="-D_ALL_SOURCE"
9966         ;;
9967 (darwin[[0-8]].*)
9968         cf_xopen_source="-D_APPLE_C_SOURCE"
9969         ;;
9970 (darwin*)
9971         cf_xopen_source="-D_DARWIN_C_SOURCE"
9972         cf_XOPEN_SOURCE=
9973         ;;
9974 (freebsd*|dragonfly*|midnightbsd*)
9975         # 5.x headers associate
9976         #       _XOPEN_SOURCE=600 with _POSIX_C_SOURCE=200112L
9977         #       _XOPEN_SOURCE=500 with _POSIX_C_SOURCE=199506L
9978         cf_POSIX_C_SOURCE=200112L
9979         cf_XOPEN_SOURCE=600
9980         cf_xopen_source="-D_BSD_TYPES -D__BSD_VISIBLE -D_POSIX_C_SOURCE=$cf_POSIX_C_SOURCE -D_XOPEN_SOURCE=$cf_XOPEN_SOURCE"
9981         ;;
9982 (hpux11*)
9983         cf_xopen_source="-D_HPUX_SOURCE -D_XOPEN_SOURCE=500"
9984         ;;
9985 (hpux*)
9986         cf_xopen_source="-D_HPUX_SOURCE"
9987         ;;
9988 (irix[[56]].*)
9989         cf_xopen_source="-D_SGI_SOURCE"
9990         cf_XOPEN_SOURCE=
9991         ;;
9992 (linux*gnu|linux*gnuabi64|linux*gnuabin32|linux*gnueabi|linux*gnueabihf|linux*gnux32|uclinux*|gnu*|mint*|k*bsd*-gnu|cygwin|msys|mingw*)
9993         CF_GNU_SOURCE($cf_XOPEN_SOURCE)
9994         ;;
9995 (minix*)
9996         cf_xopen_source="-D_NETBSD_SOURCE" # POSIX.1-2001 features are ifdef'd with this...
9997         ;;
9998 (mirbsd*)
9999         # setting _XOPEN_SOURCE or _POSIX_SOURCE breaks <sys/select.h> and other headers which use u_int / u_short types
10000         cf_XOPEN_SOURCE=
10001         CF_POSIX_C_SOURCE($cf_POSIX_C_SOURCE)
10002         ;;
10003 (netbsd*)
10004         cf_xopen_source="-D_NETBSD_SOURCE" # setting _XOPEN_SOURCE breaks IPv6 for lynx on NetBSD 1.6, breaks xterm, is not needed for ncursesw
10005         ;;
10006 (openbsd[[6-9]]*)
10007         # OpenBSD 6.x has broken locale support, both compile-time and runtime.
10008         # see https://www.mail-archive.com/bugs@openbsd.org/msg13200.html
10009         # Abusing the conformance level is a workaround.
10010         AC_MSG_WARN(this system does not provide usable locale support)
10011         cf_xopen_source="-D_BSD_SOURCE"
10012         cf_XOPEN_SOURCE=700
10013         ;;
10014 (openbsd[[4-5]]*)
10015         # setting _XOPEN_SOURCE lower than 500 breaks g++ compile with wchar.h, needed for ncursesw
10016         cf_xopen_source="-D_BSD_SOURCE"
10017         cf_XOPEN_SOURCE=600
10018         ;;
10019 (openbsd*)
10020         # setting _XOPEN_SOURCE breaks xterm on OpenBSD 2.8, is not needed for ncursesw
10021         ;;
10022 (osf[[45]]*)
10023         cf_xopen_source="-D_OSF_SOURCE"
10024         ;;
10025 (nto-qnx*)
10026         cf_xopen_source="-D_QNX_SOURCE"
10027         ;;
10028 (sco*)
10029         # setting _XOPEN_SOURCE breaks Lynx on SCO Unix / OpenServer
10030         ;;
10031 (solaris2.*)
10032         cf_xopen_source="-D__EXTENSIONS__"
10033         cf_cv_xopen_source=broken
10034         ;;
10035 (sysv4.2uw2.*) # Novell/SCO UnixWare 2.x (tested on 2.1.2)
10036         cf_XOPEN_SOURCE=
10037         cf_POSIX_C_SOURCE=
10038         ;;
10039 (*)
10040         CF_TRY_XOPEN_SOURCE
10041         cf_save_xopen_cppflags="$CPPFLAGS"
10042         CF_POSIX_C_SOURCE($cf_POSIX_C_SOURCE)
10043         # Some of these niche implementations use copy/paste, double-check...
10044         if test "$cf_cv_xopen_source" = no ; then
10045                 CF_VERBOSE(checking if _POSIX_C_SOURCE interferes with _XOPEN_SOURCE)
10046                 AC_TRY_COMPILE(CF__XOPEN_SOURCE_HEAD,CF__XOPEN_SOURCE_BODY,,[
10047                         AC_MSG_WARN(_POSIX_C_SOURCE definition is not usable)
10048                         CPPFLAGS="$cf_save_xopen_cppflags"])
10049         fi
10050         ;;
10051 esac
10052
10053 if test -n "$cf_xopen_source" ; then
10054         CF_APPEND_CFLAGS($cf_xopen_source,true)
10055 fi
10056
10057 dnl In anything but the default case, we may have system-specific setting
10058 dnl which is still not guaranteed to provide all of the entrypoints that
10059 dnl _XOPEN_SOURCE would yield.
10060 if test -n "$cf_XOPEN_SOURCE" && test -z "$cf_cv_xopen_source" ; then
10061         AC_MSG_CHECKING(if _XOPEN_SOURCE really is set)
10062         AC_TRY_COMPILE([#include <stdlib.h>],[
10063 #ifndef _XOPEN_SOURCE
10064 #error _XOPEN_SOURCE is not defined
10065 #endif],
10066         [cf_XOPEN_SOURCE_set=yes],
10067         [cf_XOPEN_SOURCE_set=no])
10068         AC_MSG_RESULT($cf_XOPEN_SOURCE_set)
10069         if test "$cf_XOPEN_SOURCE_set" = yes
10070         then
10071                 AC_TRY_COMPILE([#include <stdlib.h>],[
10072 #if (_XOPEN_SOURCE - 0) < $cf_XOPEN_SOURCE
10073 #error (_XOPEN_SOURCE - 0) < $cf_XOPEN_SOURCE
10074 #endif],
10075                 [cf_XOPEN_SOURCE_set_ok=yes],
10076                 [cf_XOPEN_SOURCE_set_ok=no])
10077                 if test "$cf_XOPEN_SOURCE_set_ok" = no
10078                 then
10079                         AC_MSG_WARN(_XOPEN_SOURCE is lower than requested)
10080                 fi
10081         else
10082                 CF_TRY_XOPEN_SOURCE
10083         fi
10084 fi
10085 fi # cf_cv_posix_visible
10086 ])
10087 dnl ---------------------------------------------------------------------------
10088 dnl CF__SED_TRIMBLANKS version: 1 updated: 2021/01/02 09:31:20
10089 dnl ------------------
10090 dnl Trim something using sed, then trim extra whitespace
10091 dnl $1 = extra parameters, e.g., in CF_STRIP_G_OPT
10092 define([CF__SED_TRIMBLANKS],[sed ifelse($1,,,[$1] )-e 's%[[     ]]% %g' -e 's% [[ ]]*% %g' -e 's%^ %%' -e 's% [$]%%'])dnl
10093 dnl ---------------------------------------------------------------------------
10094 dnl CF__XOPEN_SOURCE_BODY version: 2 updated: 2023/02/18 17:41:25
10095 dnl ---------------------
10096 dnl body of test when test-compiling for _XOPEN_SOURCE check
10097 define([CF__XOPEN_SOURCE_BODY],
10098 [
10099 #ifndef _XOPEN_SOURCE
10100 #error _XOPEN_SOURCE is not defined
10101 #endif
10102 ])
10103 dnl ---------------------------------------------------------------------------
10104 dnl CF__XOPEN_SOURCE_HEAD version: 2 updated: 2023/02/18 17:41:25
10105 dnl ---------------------
10106 dnl headers to include when test-compiling for _XOPEN_SOURCE check
10107 define([CF__XOPEN_SOURCE_HEAD],
10108 [
10109 $ac_includes_default
10110 ])