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 1.1030 2023/02/18 22:45:17 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: 10 updated: 2020/12/31 18:40:20
 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" | ${AWK:-awk} -v prog="$cf_prog" '{ printf("%s", [substr]([$]0,1+length(prog))); }'`
 939         CC="$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: 1 updated: 2023/02/18 17:41:25
2624 dnl ---------------
2625 AC_DEFUN([CF_FUNC_GETTIME],[
2626 AC_CHECK_FUNC(gettimeofday,
2627         AC_DEFINE(HAVE_GETTIMEOFDAY,1,[Define to 1 if we have gettimeofday function]),[
2628
2629 AC_CHECK_LIB(bsd, gettimeofday,
2630         AC_DEFINE(HAVE_GETTIMEOFDAY,1,[Define to 1 if we have gettimeofday function])
2631         CF_ADD_LIB(bsd))])dnl CLIX: bzero, select, gettimeofday
2632 ])dnl
2633 dnl ---------------------------------------------------------------------------
2634 dnl CF_FUNC_GETTTYNAM version: 2 updated: 2023/01/05 18:06:28
2635 dnl -----------------
2636 dnl Check if the 4.3BSD function getttyname exists, as well as if <ttyent.h>
2637 dnl defines the _PATH_TTYS symbol.  If the corresponding file exists, but the
2638 dnl other checks fail, just define HAVE_PATH_TTYS.
2639 AC_DEFUN([CF_FUNC_GETTTYNAM],[
2640 AC_CACHE_CHECK(if _PATH_TTYS is defined in ttyent.h,cf_cv_PATH_TTYS,[
2641 AC_TRY_COMPILE([
2642 #include <stdio.h>
2643 #include <ttyent.h>],[
2644 FILE *fp = fopen(_PATH_TTYS, "r"); (void)fp],
2645         [cf_cv_PATH_TTYS=yes],
2646         [cf_cv_PATH_TTYS=no])])
2647
2648 if test $cf_cv_PATH_TTYS = no
2649 then
2650         for cf_ttys in /etc/ttytype /etc/ttys
2651         do
2652                 if test -f $cf_ttys
2653                 then
2654                         cf_cv_PATH_TTYS=maybe
2655                         AC_DEFINE(_PATH_TTYS,$cf_ttys,[define to pathname of file containing mapping from tty name to terminal type])
2656                         break
2657                 fi
2658         done
2659 fi
2660
2661 if test $cf_cv_PATH_TTYS != no
2662 then
2663         AC_CACHE_CHECK(if _PATH_TTYS file exists,cf_cv_have_PATH_TTYS,[
2664                 AC_TRY_RUN([
2665 $ac_includes_default
2666
2667 #include <ttyent.h>
2668
2669 int main(void) {
2670         FILE *fp = fopen(_PATH_TTYS, "r");
2671         ${cf_cv_main_return:-return} (fp == 0);
2672 }],
2673                         [cf_cv_have_PATH_TTYS=yes],
2674                         [cf_cv_have_PATH_TTYS=no],
2675                         [cf_cv_have_PATH_TTYS=unknown])])
2676         test "$cf_cv_have_PATH_TTYS" = no && cf_cv_PATH_TTYS=no
2677 fi
2678
2679 if test $cf_cv_PATH_TTYS != no
2680 then
2681         AC_DEFINE(HAVE_PATH_TTYS,1,[define to 1 if system can map tty name to terminal type])
2682         AC_CACHE_CHECK(for getttynam,cf_cv_func_getttynam,[
2683                 AC_TRY_LINK([#include <ttyent.h>],
2684                 [struct ttyent *fp = getttynam("/dev/tty"); (void)fp],
2685                 [cf_cv_func_getttynam=yes],
2686                 [cf_cv_func_getttynam=no])])
2687         test "$cf_cv_func_getttynam" = yes && AC_DEFINE(HAVE_GETTTYNAM)
2688 fi
2689 ])dnl
2690 dnl ---------------------------------------------------------------------------
2691 dnl CF_FUNC_MEMMOVE version: 10 updated: 2023/01/05 18:51:28
2692 dnl ---------------
2693 dnl Check for memmove, or a bcopy that can handle overlapping copy.  If neither
2694 dnl is found, add our own version of memmove to the list of objects.
2695 AC_DEFUN([CF_FUNC_MEMMOVE],
2696 [
2697 AC_CHECK_FUNC(memmove,,[
2698 AC_CHECK_FUNC(bcopy,[
2699         AC_CACHE_CHECK(if bcopy does overlapping moves,cf_cv_good_bcopy,[
2700                 AC_TRY_RUN([
2701 $ac_includes_default
2702
2703 int main(void) {
2704         static char data[] = "abcdefghijklmnopqrstuwwxyz";
2705         char temp[40];
2706         bcopy(data, temp, sizeof(data));
2707         bcopy(temp+10, temp, 15);
2708         bcopy(temp+5, temp+15, 10);
2709         ${cf_cv_main_return:-return} (strcmp(temp, "klmnopqrstuwwxypqrstuwwxyz"));
2710 }
2711                 ],
2712                 [cf_cv_good_bcopy=yes],
2713                 [cf_cv_good_bcopy=no],
2714                 [cf_cv_good_bcopy=unknown])
2715                 ])
2716         ],[cf_cv_good_bcopy=no])
2717         if test "$cf_cv_good_bcopy" = yes ; then
2718                 AC_DEFINE(USE_OK_BCOPY,1,[Define to 1 to use bcopy when memmove is unavailable])
2719         else
2720                 AC_DEFINE(USE_MY_MEMMOVE,1,[Define to 1 to use replacement function when memmove is unavailable])
2721         fi
2722 ])])dnl
2723 dnl ---------------------------------------------------------------------------
2724 dnl CF_FUNC_NANOSLEEP version: 6 updated: 2023/01/05 18:51:33
2725 dnl -----------------
2726 dnl Check for existence of workable nanosleep() function.  Some systems, e.g.,
2727 dnl AIX 4.x, provide a non-working version.
2728 AC_DEFUN([CF_FUNC_NANOSLEEP],[
2729 AC_CACHE_CHECK(if nanosleep really works,cf_cv_func_nanosleep,[
2730 AC_TRY_RUN([
2731 $ac_includes_default
2732
2733 #include <errno.h>
2734 #include <time.h>
2735
2736 #ifdef HAVE_SYS_TIME_H
2737 #include <sys/time.h>
2738 #endif
2739
2740 int main(void) {
2741         struct timespec ts1, ts2;
2742         int code;
2743         ts1.tv_sec  = 0;
2744         ts1.tv_nsec = 750000000;
2745         ts2.tv_sec  = 0;
2746         ts2.tv_nsec = 0;
2747         errno = 0;
2748         code = nanosleep(&ts1, &ts2); /* on failure errno is ENOSYS. */
2749         ${cf_cv_main_return:-return}(code != 0);
2750 }
2751 ],
2752         [cf_cv_func_nanosleep=yes],
2753         [cf_cv_func_nanosleep=no],
2754         [cf_cv_func_nanosleep=unknown])])
2755
2756 test "$cf_cv_func_nanosleep" = "yes" && AC_DEFINE(HAVE_NANOSLEEP,1,[Define to 1 if we have nanosleep()])
2757 ])
2758 dnl ---------------------------------------------------------------------------
2759 dnl CF_FUNC_OPENPTY version: 6 updated: 2021/01/01 13:31:04
2760 dnl ---------------
2761 dnl Check for openpty() function, along with <pty.h> header.  It may need the
2762 dnl "util" library as well.
2763 AC_DEFUN([CF_FUNC_OPENPTY],
2764 [
2765 AC_CHECK_LIB(util,openpty,cf_cv_lib_util=yes,cf_cv_lib_util=no)
2766 AC_CACHE_CHECK(for openpty header,cf_cv_func_openpty,[
2767         cf_save_LIBS="$LIBS"
2768         test "$cf_cv_lib_util" = yes && { CF_ADD_LIB(util) }
2769         for cf_header in pty.h libutil.h util.h
2770         do
2771         AC_TRY_LINK([
2772 #include <$cf_header>
2773 ],[
2774         int x = openpty((int *)0, (int *)0, (char *)0,
2775                                    (struct termios *)0, (struct winsize *)0);
2776 ],[
2777                 cf_cv_func_openpty=$cf_header
2778                 break
2779 ],[
2780                 cf_cv_func_openpty=no
2781 ])
2782         done
2783         LIBS="$cf_save_LIBS"
2784 ])
2785 ])dnl
2786 dnl ---------------------------------------------------------------------------
2787 dnl CF_FUNC_POLL version: 11 updated: 2023/01/05 18:51:40
2788 dnl ------------
2789 dnl See if the poll function really works.  Some platforms have poll(), but
2790 dnl it does not work for terminals or files.
2791 AC_DEFUN([CF_FUNC_POLL],[
2792 tty >/dev/null 2>&1 || { AC_CHECK_FUNCS(posix_openpt) }
2793 AC_CACHE_CHECK(if poll really works,cf_cv_working_poll,[
2794 AC_TRY_RUN([
2795 $ac_includes_default
2796
2797 #include <fcntl.h>
2798
2799 #ifdef HAVE_POLL_H
2800 #include <poll.h>
2801 #else
2802 #include <sys/poll.h>
2803 #endif
2804
2805 int main(void) {
2806         struct pollfd myfds;
2807         int ret;
2808
2809         /* check for Darwin bug with respect to "devices" */
2810         myfds.fd = open("/dev/null", 1);        /* O_WRONLY */
2811         if (myfds.fd < 0)
2812                 myfds.fd = 0;
2813         myfds.events = POLLIN;
2814         myfds.revents = 0;
2815
2816         ret = poll(&myfds, 1, 100);
2817
2818         if (ret < 0 || (myfds.revents & POLLNVAL)) {
2819                 ret = -1;
2820         } else {
2821                 int fd = 0;
2822                 if (!isatty(fd)) {
2823                         fd = open("/dev/tty", 2);       /* O_RDWR */
2824                 }
2825 #ifdef HAVE_POSIX_OPENPT
2826                 if (fd < 0) {
2827                         fd = posix_openpt(O_RDWR);
2828                 }
2829 #endif
2830
2831                 if (fd >= 0) {
2832                         /* also check with standard input */
2833                         myfds.fd = fd;
2834                         myfds.events = POLLIN;
2835                         myfds.revents = 0;
2836                         ret = poll(&myfds, 1, 100);
2837                 } else {
2838                         ret = -1;
2839                 }
2840         }
2841         ${cf_cv_main_return:-return}(ret < 0);
2842 }],
2843         [cf_cv_working_poll=yes],
2844         [cf_cv_working_poll=no],
2845         [cf_cv_working_poll=unknown])])
2846 test "$cf_cv_working_poll" = "yes" && AC_DEFINE(HAVE_WORKING_POLL,1,[Define to 1 if the poll function seems to work])
2847 ])dnl
2848 dnl ---------------------------------------------------------------------------
2849 dnl CF_FUNC_TERMIOS version: 3 updated: 2012/10/06 17:56:13
2850 dnl ---------------
2851 dnl Some old/broken variations define tcgetattr() only as a macro in
2852 dnl termio(s).h
2853 AC_DEFUN([CF_FUNC_TERMIOS],[
2854 AC_REQUIRE([CF_STRUCT_TERMIOS])
2855 AC_CACHE_CHECK(for tcgetattr, cf_cv_have_tcgetattr,[
2856 AC_TRY_LINK([
2857 #include <sys/types.h>
2858 #ifdef HAVE_UNISTD_H
2859 #include <unistd.h>
2860 #endif
2861 #ifdef HAVE_TERMIOS_H
2862 #include <termios.h>
2863 #define TTY struct termios
2864 #else
2865 #ifdef HAVE_TERMIO_H
2866 #include <termio.h>
2867 #define TTY struct termio
2868 #endif
2869 #endif
2870 ],[
2871 TTY foo;
2872 tcgetattr(1, &foo);],
2873 [cf_cv_have_tcgetattr=yes],
2874 [cf_cv_have_tcgetattr=no])])
2875 test "$cf_cv_have_tcgetattr" = yes && AC_DEFINE(HAVE_TCGETATTR,1,[Define to 1 if we have tcgetattr])
2876 ])dnl
2877 dnl ---------------------------------------------------------------------------
2878 dnl CF_FUNC_VSSCANF version: 7 updated: 2021/01/01 13:31:04
2879 dnl ---------------
2880 dnl Check for vsscanf() function, which is in c9x but generally not in earlier
2881 dnl versions of C.  It is in the GNU C library, and can often be simulated by
2882 dnl other functions.
2883 AC_DEFUN([CF_FUNC_VSSCANF],
2884 [
2885 AC_CACHE_CHECK(for vsscanf function or workaround,cf_cv_func_vsscanf,[
2886 AC_TRY_LINK([
2887 #include <stdarg.h>
2888 #include <stdio.h>],[
2889         va_list ap;
2890         vsscanf("from", "%d", ap)],[cf_cv_func_vsscanf=vsscanf],[
2891 AC_TRY_LINK([
2892 #include <stdarg.h>
2893 #include <stdio.h>],[
2894         FILE strbuf;
2895         char *str = "from";
2896
2897         strbuf._flag = _IOREAD;
2898         strbuf._ptr = strbuf._base = (unsigned char *) str;
2899         strbuf._cnt = strlen(str);
2900         strbuf._file = _NFILE;
2901         return (vfscanf(&strbuf, "%d", ap))],[cf_cv_func_vsscanf=vfscanf],[
2902 AC_TRY_LINK([
2903 #include <stdarg.h>
2904 #include <stdio.h>],[
2905         FILE strbuf;
2906         char *str = "from";
2907
2908         strbuf._flag = _IOREAD;
2909         strbuf._ptr = strbuf._base = (unsigned char *) str;
2910         strbuf._cnt = strlen(str);
2911         strbuf._file = _NFILE;
2912         return (_doscan(&strbuf, "%d", ap))],[cf_cv_func_vsscanf=_doscan],[
2913 cf_cv_func_vsscanf=no])])])])
2914
2915 case "$cf_cv_func_vsscanf" in
2916 (vsscanf) AC_DEFINE(HAVE_VSSCANF,1,[Define to 1 if we have vsscanf]);;
2917 (vfscanf) AC_DEFINE(HAVE_VFSCANF,1,[Define to 1 if we have vfscanf]);;
2918 (_doscan) AC_DEFINE(HAVE__DOSCAN,1,[Define to 1 if we have _doscan]);;
2919 esac
2920
2921 ])dnl
2922 dnl ---------------------------------------------------------------------------
2923 dnl CF_GCC_ATTRIBUTES version: 24 updated: 2021/03/20 12:00:25
2924 dnl -----------------
2925 dnl Test for availability of useful gcc __attribute__ directives to quiet
2926 dnl compiler warnings.  Though useful, not all are supported -- and contrary
2927 dnl to documentation, unrecognized directives cause older compilers to barf.
2928 AC_DEFUN([CF_GCC_ATTRIBUTES],
2929 [AC_REQUIRE([AC_PROG_FGREP])dnl
2930 AC_REQUIRE([CF_C11_NORETURN])dnl
2931
2932 if test "$GCC" = yes || test "$GXX" = yes
2933 then
2934 cat > conftest.i <<EOF
2935 #ifndef GCC_PRINTF
2936 #define GCC_PRINTF 0
2937 #endif
2938 #ifndef GCC_SCANF
2939 #define GCC_SCANF 0
2940 #endif
2941 #ifndef GCC_NORETURN
2942 #define GCC_NORETURN /* nothing */
2943 #endif
2944 #ifndef GCC_UNUSED
2945 #define GCC_UNUSED /* nothing */
2946 #endif
2947 EOF
2948 if test "$GCC" = yes
2949 then
2950         AC_CHECKING([for $CC __attribute__ directives])
2951 cat > "conftest.$ac_ext" <<EOF
2952 #line __oline__ "${as_me:-configure}"
2953 #include <stdio.h>
2954 #include "confdefs.h"
2955 #include "conftest.h"
2956 #include "conftest.i"
2957 #if     GCC_PRINTF
2958 #define GCC_PRINTFLIKE(fmt,var) __attribute__((format(printf,fmt,var)))
2959 #else
2960 #define GCC_PRINTFLIKE(fmt,var) /*nothing*/
2961 #endif
2962 #if     GCC_SCANF
2963 #define GCC_SCANFLIKE(fmt,var)  __attribute__((format(scanf,fmt,var)))
2964 #else
2965 #define GCC_SCANFLIKE(fmt,var)  /*nothing*/
2966 #endif
2967 extern void wow(char *,...) GCC_SCANFLIKE(1,2);
2968 extern GCC_NORETURN void oops(char *,...) GCC_PRINTFLIKE(1,2);
2969 extern GCC_NORETURN void foo(void);
2970 int main(int argc GCC_UNUSED, char *argv[[]] GCC_UNUSED) { (void)argc; (void)argv; return 0; }
2971 EOF
2972         cf_printf_attribute=no
2973         cf_scanf_attribute=no
2974         for cf_attribute in scanf printf unused noreturn
2975         do
2976                 CF_UPPER(cf_ATTRIBUTE,$cf_attribute)
2977                 cf_directive="__attribute__(($cf_attribute))"
2978                 echo "checking for $CC $cf_directive" 1>&AC_FD_CC
2979
2980                 case "$cf_attribute" in
2981                 (printf)
2982                         cf_printf_attribute=yes
2983                         cat >conftest.h <<EOF
2984 #define GCC_$cf_ATTRIBUTE 1
2985 EOF
2986                         ;;
2987                 (scanf)
2988                         cf_scanf_attribute=yes
2989                         cat >conftest.h <<EOF
2990 #define GCC_$cf_ATTRIBUTE 1
2991 EOF
2992                         ;;
2993                 (*)
2994                         cat >conftest.h <<EOF
2995 #define GCC_$cf_ATTRIBUTE $cf_directive
2996 EOF
2997                         ;;
2998                 esac
2999
3000                 if AC_TRY_EVAL(ac_compile); then
3001                         test -n "$verbose" && AC_MSG_RESULT(... $cf_attribute)
3002                         cat conftest.h >>confdefs.h
3003                         case "$cf_attribute" in
3004                         (noreturn)
3005                                 AC_DEFINE_UNQUOTED(GCC_NORETURN,$cf_directive,[Define to noreturn-attribute for gcc])
3006                                 ;;
3007                         (printf)
3008                                 cf_value='/* nothing */'
3009                                 if test "$cf_printf_attribute" != no ; then
3010                                         cf_value='__attribute__((format(printf,fmt,var)))'
3011                                         AC_DEFINE(GCC_PRINTF,1,[Define to 1 if the compiler supports gcc-like printf attribute.])
3012                                 fi
3013                                 AC_DEFINE_UNQUOTED(GCC_PRINTFLIKE(fmt,var),$cf_value,[Define to printf-attribute for gcc])
3014                                 ;;
3015                         (scanf)
3016                                 cf_value='/* nothing */'
3017                                 if test "$cf_scanf_attribute" != no ; then
3018                                         cf_value='__attribute__((format(scanf,fmt,var)))'
3019                                         AC_DEFINE(GCC_SCANF,1,[Define to 1 if the compiler supports gcc-like scanf attribute.])
3020                                 fi
3021                                 AC_DEFINE_UNQUOTED(GCC_SCANFLIKE(fmt,var),$cf_value,[Define to sscanf-attribute for gcc])
3022                                 ;;
3023                         (unused)
3024                                 AC_DEFINE_UNQUOTED(GCC_UNUSED,$cf_directive,[Define to unused-attribute for gcc])
3025                                 ;;
3026                         esac
3027                 fi
3028         done
3029 else
3030         ${FGREP-fgrep} define conftest.i >>confdefs.h
3031 fi
3032 rm -rf ./conftest*
3033 fi
3034 ])dnl
3035 dnl ---------------------------------------------------------------------------
3036 dnl CF_GCC_VERSION version: 8 updated: 2019/09/07 13:38:36
3037 dnl --------------
3038 dnl Find version of gcc, and (because icc/clang pretend to be gcc without being
3039 dnl compatible), attempt to determine if icc/clang is actually used.
3040 AC_DEFUN([CF_GCC_VERSION],[
3041 AC_REQUIRE([AC_PROG_CC])
3042 GCC_VERSION=none
3043 if test "$GCC" = yes ; then
3044         AC_MSG_CHECKING(version of $CC)
3045         GCC_VERSION="`${CC} --version 2>/dev/null | sed -e '2,$d' -e 's/^.*(GCC[[^)]]*) //' -e 's/^.*(Debian[[^)]]*) //' -e 's/^[[^0-9.]]*//' -e 's/[[^0-9.]].*//'`"
3046         test -z "$GCC_VERSION" && GCC_VERSION=unknown
3047         AC_MSG_RESULT($GCC_VERSION)
3048 fi
3049 CF_INTEL_COMPILER(GCC,INTEL_COMPILER,CFLAGS)
3050 CF_CLANG_COMPILER(GCC,CLANG_COMPILER,CFLAGS)
3051 ])dnl
3052 dnl ---------------------------------------------------------------------------
3053 dnl CF_GCC_WARNINGS version: 41 updated: 2021/01/01 16:53:59
3054 dnl ---------------
3055 dnl Check if the compiler supports useful warning options.  There's a few that
3056 dnl we don't use, simply because they're too noisy:
3057 dnl
3058 dnl     -Wconversion (useful in older versions of gcc, but not in gcc 2.7.x)
3059 dnl     -Winline (usually not worthwhile)
3060 dnl     -Wredundant-decls (system headers make this too noisy)
3061 dnl     -Wtraditional (combines too many unrelated messages, only a few useful)
3062 dnl     -Wwrite-strings (too noisy, but should review occasionally).  This
3063 dnl             is enabled for ncurses using "--enable-const".
3064 dnl     -pedantic
3065 dnl
3066 dnl Parameter:
3067 dnl     $1 is an optional list of gcc warning flags that a particular
3068 dnl             application might want to use, e.g., "no-unused" for
3069 dnl             -Wno-unused
3070 dnl Special:
3071 dnl     If $with_ext_const is "yes", add a check for -Wwrite-strings
3072 dnl
3073 AC_DEFUN([CF_GCC_WARNINGS],
3074 [
3075 AC_REQUIRE([CF_GCC_VERSION])
3076 if test "x$have_x" = xyes; then CF_CONST_X_STRING fi
3077 cat > "conftest.$ac_ext" <<EOF
3078 #line __oline__ "${as_me:-configure}"
3079 int main(int argc, char *argv[[]]) { return (argv[[argc-1]] == 0) ; }
3080 EOF
3081 if test "$INTEL_COMPILER" = yes
3082 then
3083 # The "-wdXXX" options suppress warnings:
3084 # remark #1419: external declaration in primary source file
3085 # remark #1683: explicit conversion of a 64-bit integral type to a smaller integral type (potential portability problem)
3086 # remark #1684: conversion from pointer to same-sized integral type (potential portability problem)
3087 # remark #193: zero used for undefined preprocessing identifier
3088 # remark #593: variable "curs_sb_left_arrow" was set but never used
3089 # remark #810: conversion from "int" to "Dimension={unsigned short}" may lose significant bits
3090 # remark #869: parameter "tw" was never referenced
3091 # remark #981: operands are evaluated in unspecified order
3092 # warning #279: controlling expression is constant
3093
3094         AC_CHECKING([for $CC warning options])
3095         cf_save_CFLAGS="$CFLAGS"
3096         EXTRA_CFLAGS="$EXTRA_CFLAGS -Wall"
3097         for cf_opt in \
3098                 wd1419 \
3099                 wd1683 \
3100                 wd1684 \
3101                 wd193 \
3102                 wd593 \
3103                 wd279 \
3104                 wd810 \
3105                 wd869 \
3106                 wd981
3107         do
3108                 CFLAGS="$cf_save_CFLAGS $EXTRA_CFLAGS -$cf_opt"
3109                 if AC_TRY_EVAL(ac_compile); then
3110                         test -n "$verbose" && AC_MSG_RESULT(... -$cf_opt)
3111                         EXTRA_CFLAGS="$EXTRA_CFLAGS -$cf_opt"
3112                 fi
3113         done
3114         CFLAGS="$cf_save_CFLAGS"
3115 elif test "$GCC" = yes && test "$GCC_VERSION" != "unknown"
3116 then
3117         AC_CHECKING([for $CC warning options])
3118         cf_save_CFLAGS="$CFLAGS"
3119         cf_warn_CONST=""
3120         test "$with_ext_const" = yes && cf_warn_CONST="Wwrite-strings"
3121         cf_gcc_warnings="Wignored-qualifiers Wlogical-op Wvarargs"
3122         test "x$CLANG_COMPILER" = xyes && cf_gcc_warnings=
3123         for cf_opt in W Wall \
3124                 Wbad-function-cast \
3125                 Wcast-align \
3126                 Wcast-qual \
3127                 Wdeclaration-after-statement \
3128                 Wextra \
3129                 Winline \
3130                 Wmissing-declarations \
3131                 Wmissing-prototypes \
3132                 Wnested-externs \
3133                 Wpointer-arith \
3134                 Wshadow \
3135                 Wstrict-prototypes \
3136                 Wundef Wno-inline $cf_gcc_warnings $cf_warn_CONST $1
3137         do
3138                 CFLAGS="$cf_save_CFLAGS $EXTRA_CFLAGS -$cf_opt"
3139                 if AC_TRY_EVAL(ac_compile); then
3140                         test -n "$verbose" && AC_MSG_RESULT(... -$cf_opt)
3141                         case "$cf_opt" in
3142                         (Winline)
3143                                 case "$GCC_VERSION" in
3144                                 ([[34]].*)
3145                                         CF_VERBOSE(feature is broken in gcc $GCC_VERSION)
3146                                         continue;;
3147                                 esac
3148                                 ;;
3149                         (Wpointer-arith)
3150                                 case "$GCC_VERSION" in
3151                                 ([[12]].*)
3152                                         CF_VERBOSE(feature is broken in gcc $GCC_VERSION)
3153                                         continue;;
3154                                 esac
3155                                 ;;
3156                         esac
3157                         EXTRA_CFLAGS="$EXTRA_CFLAGS -$cf_opt"
3158                 fi
3159         done
3160         CFLAGS="$cf_save_CFLAGS"
3161 fi
3162 rm -rf ./conftest*
3163
3164 AC_SUBST(EXTRA_CFLAGS)
3165 ])dnl
3166 dnl ---------------------------------------------------------------------------
3167 dnl CF_GETOPT_HEADER version: 8 updated: 2021/06/19 19:16:16
3168 dnl ----------------
3169 dnl Check for getopt's variables which are commonly defined in stdlib.h,
3170 dnl unistd.h or (nonstandard) in getopt.h
3171 AC_DEFUN([CF_GETOPT_HEADER],
3172 [
3173 AC_HAVE_HEADERS(unistd.h getopt.h)
3174 AC_CACHE_CHECK(for header declaring getopt variables,cf_cv_getopt_header,[
3175 cf_cv_getopt_header=none
3176 for cf_header in stdio.h stdlib.h unistd.h getopt.h
3177 do
3178 AC_TRY_COMPILE([
3179 #include <$cf_header>],
3180 [int x = optind; char *y = optarg; (void)x; (void)y],
3181 [cf_cv_getopt_header=$cf_header
3182  break])
3183 done
3184 ])
3185 if test "$cf_cv_getopt_header" != none ; then
3186         AC_DEFINE(HAVE_GETOPT_HEADER,1,[Define to 1 if getopt variables are declared in header])
3187 fi
3188 if test "$cf_cv_getopt_header" = getopt.h ; then
3189         AC_DEFINE(NEED_GETOPT_H,1,[Define to 1 if we must include getopt.h])
3190 fi
3191 ])dnl
3192 dnl ---------------------------------------------------------------------------
3193 dnl CF_GNATPREP_OPT_T version: 1 updated: 2014/08/02 18:37:25
3194 dnl -----------------
3195 AC_DEFUN([CF_GNATPREP_OPT_T],[
3196 AC_CACHE_CHECK(if GNATPREP supports -T option,cf_cv_gnatprep_opt_t,[
3197 cf_cv_gnatprep_opt_t=no
3198 gnatprep -T 2>/dev/null >/dev/null && cf_cv_gnatprep_opt_t=yes
3199 ])
3200 test "$cf_cv_gnatprep_opt_t" = yes && GNATPREP_OPTS="-T $GNATPREP_OPTS"
3201 AC_SUBST(GNATPREP_OPTS)
3202 ])dnl
3203 dnl ---------------------------------------------------------------------------
3204 dnl CF_GNAT_GENERICS version: 7 updated: 2021/01/01 13:31:04
3205 dnl ----------------
3206 AC_DEFUN([CF_GNAT_GENERICS],
3207 [
3208 AC_REQUIRE([CF_GNAT_VERSION])
3209
3210 AC_MSG_CHECKING(if GNAT supports generics)
3211 case "$cf_cv_gnat_version" in
3212 (3.1[[1-9]]*|3.[[2-9]]*|[[4-9]].*|[[1-9]][[0-9]].[[0-9]]*|20[[0-9]][[0-9]])
3213         cf_gnat_generics=yes
3214         ;;
3215 (*)
3216         cf_gnat_generics=no
3217         ;;
3218 esac
3219 AC_MSG_RESULT($cf_gnat_generics)
3220
3221 if test "$cf_gnat_generics" = yes
3222 then
3223         cf_compile_generics=generics
3224         cf_generic_objects="\${GENOBJS}"
3225 else
3226         cf_compile_generics=
3227         cf_generic_objects=
3228 fi
3229
3230 AC_SUBST(cf_compile_generics)
3231 AC_SUBST(cf_generic_objects)
3232 ])dnl
3233 dnl ---------------------------------------------------------------------------
3234 dnl CF_GNAT_PROJECTS version: 13 updated: 2021/01/02 17:09:14
3235 dnl ----------------
3236 dnl GNAT projects are configured with ".gpr" project files.
3237 dnl GNAT libraries are a further development, using the project feature.
3238 AC_DEFUN([CF_GNAT_PROJECTS],
3239 [
3240 AC_REQUIRE([CF_GNAT_VERSION])
3241 AC_REQUIRE([CF_DISABLE_GNAT_PROJECTS])
3242
3243 cf_gnat_libraries=no
3244 cf_gnat_projects=no
3245
3246 if test "$enable_gnat_projects" != no ; then
3247 AC_MSG_CHECKING(if GNAT supports project files)
3248 case "$cf_cv_gnat_version" in
3249 (3.[[0-9]]*)
3250         ;;
3251 (*)
3252         case "$cf_cv_system_name" in
3253         (cygwin*|msys*)
3254                 ;;
3255         (*)
3256                 rm -rf ./conftest* ./*~conftest*
3257                 if mkdir conftest.src conftest.bin conftest.lib
3258                 then
3259                         cd conftest.src
3260                         rm -rf ./conftest* ./*~conftest*
3261                         cat >>library.gpr <<CF_EOF
3262 project Library is
3263   Kind := External ("LIB_KIND");
3264   for Library_Name use "ConfTest";
3265   for Object_Dir use ".";
3266   for Library_ALI_Dir use External("LIBRARY_DIR");
3267   for Library_Version use External ("SONAME");
3268   for Library_Kind use Kind;
3269   for Library_Dir use External("BUILD_DIR");
3270   Source_Dir := External ("SOURCE_DIR");
3271   for Source_Dirs use (Source_Dir);
3272 end Library;
3273 CF_EOF
3274                         cat >>confpackage.ads <<CF_EOF
3275 package ConfPackage is
3276    procedure conftest;
3277 end ConfPackage;
3278 CF_EOF
3279                         cat >>confpackage.adb <<CF_EOF
3280 with Text_IO;
3281 package body ConfPackage is
3282    procedure conftest is
3283    begin
3284       Text_IO.Put ("Hello World");
3285       Text_IO.New_Line;
3286    end conftest;
3287 end ConfPackage;
3288 CF_EOF
3289                         if ( "$cf_ada_make" $ADAFLAGS \
3290                                         -Plibrary.gpr \
3291                                         -XBUILD_DIR="`cd ../conftest.bin;pwd`" \
3292                                         -XLIBRARY_DIR="`cd ../conftest.lib;pwd`" \
3293                                         -XSOURCE_DIR="`pwd`" \
3294                                         -XSONAME=libConfTest.so.1 \
3295                                         -XLIB_KIND=static 1>&AC_FD_CC 2>&1 ) ; then
3296                                 cf_gnat_projects=yes
3297                         fi
3298                         cd ..
3299                 fi
3300                 if test -f conftest.lib/confpackage.ali
3301                 then
3302                         cf_gnat_libraries=yes
3303                 fi
3304                 rm -rf ./conftest* ./*~conftest*
3305                 ;;
3306         esac
3307         ;;
3308 esac
3309 AC_MSG_RESULT($cf_gnat_projects)
3310 fi # enable_gnat_projects
3311
3312 if test "$cf_gnat_projects" = yes
3313 then
3314         AC_MSG_CHECKING(if GNAT supports libraries)
3315         AC_MSG_RESULT($cf_gnat_libraries)
3316 fi
3317
3318 USE_OLD_MAKERULES=""
3319 USE_GNAT_PROJECTS="#"
3320 USE_GNAT_MAKE_GPR="#"
3321 USE_GNAT_GPRBUILD="#"
3322
3323 if test "$cf_gnat_projects" = yes
3324 then
3325         USE_OLD_MAKERULES="#"
3326         USE_GNAT_PROJECTS=""
3327         if test "$cf_cv_VERSION_GPRBUILD" != no
3328         then
3329                 USE_GNAT_GPRBUILD=""
3330         elif test "$cf_cv_VERSION_GNATMAKE" != no
3331         then
3332                 USE_GNAT_MAKE_GPR=""
3333         else
3334                 AC_MSG_WARN(use old makefile rules since tools are missing)
3335         fi
3336 fi
3337
3338 if test "$cf_gnat_libraries" = yes
3339 then
3340         USE_GNAT_LIBRARIES=""
3341 else
3342         USE_GNAT_LIBRARIES="#"
3343 fi
3344
3345 AC_SUBST(USE_OLD_MAKERULES)
3346 AC_SUBST(USE_GNAT_PROJECTS)
3347 AC_SUBST(USE_GNAT_LIBRARIES)
3348 AC_SUBST(USE_GNAT_MAKE_GPR)
3349 AC_SUBST(USE_GNAT_GPRBUILD)
3350 ])dnl
3351 dnl ---------------------------------------------------------------------------
3352 dnl CF_GNAT_SIGINT version: 2 updated: 2021/01/01 13:31:04
3353 dnl --------------
3354 dnl Check if gnat supports SIGINT, and presumably tasking.  For the latter, it
3355 dnl is noted that gnat may compile a tasking unit even for configurations which
3356 dnl fail at runtime.
3357 AC_DEFUN([CF_GNAT_SIGINT],[
3358 AC_CACHE_CHECK(if GNAT supports SIGINT,cf_cv_gnat_sigint,[
3359 CF_GNAT_TRY_LINK([with Ada.Interrupts.Names;
3360
3361 package ConfTest is
3362
3363    pragma Warnings (Off);  --  the next pragma exists since 3.11p
3364    pragma Unreserve_All_Interrupts;
3365    pragma Warnings (On);
3366
3367    protected Process is
3368       procedure Stop;
3369       function Continue return Boolean;
3370       pragma Attach_Handler (Stop, Ada.Interrupts.Names.SIGINT);
3371    private
3372       Done : Boolean := False;
3373    end Process;
3374
3375 end ConfTest;],
3376 [package body ConfTest is
3377    protected body Process is
3378       procedure Stop is
3379       begin
3380          Done := True;
3381       end Stop;
3382       function Continue return Boolean is
3383       begin
3384          return not Done;
3385       end Continue;
3386    end Process;
3387 end ConfTest;],
3388         [cf_cv_gnat_sigint=yes],
3389         [cf_cv_gnat_sigint=no])])
3390
3391 if test "$cf_cv_gnat_sigint" = yes ; then
3392         USE_GNAT_SIGINT=""
3393 else
3394         USE_GNAT_SIGINT="#"
3395 fi
3396 AC_SUBST(USE_GNAT_SIGINT)
3397 ])dnl
3398 dnl ---------------------------------------------------------------------------
3399 dnl CF_GNAT_TRY_LINK version: 4 updated: 2021/01/01 13:31:04
3400 dnl ----------------
3401 dnl Verify that a test program compiles/links with GNAT.
3402 dnl $cf_ada_make is set to the program that compiles/links
3403 dnl $ADAFLAGS may be set to the GNAT flags.
3404 dnl
3405 dnl $1 is the text of the spec
3406 dnl $2 is the text of the body
3407 dnl $3 is the shell command to execute if successful
3408 dnl $4 is the shell command to execute if not successful
3409 AC_DEFUN([CF_GNAT_TRY_LINK],
3410 [
3411 rm -rf ./conftest* ./*~conftest*
3412 cat >>conftest.ads <<CF_EOF
3413 $1
3414 CF_EOF
3415 cat >>conftest.adb <<CF_EOF
3416 $2
3417 CF_EOF
3418 if ( "$cf_ada_make" $ADAFLAGS conftest 1>&AC_FD_CC 2>&1 ) ; then
3419 ifelse($3,,      :,[      $3])
3420 ifelse($4,,,[else
3421    $4])
3422 fi
3423 rm -rf ./conftest* ./*~conftest*
3424 ])dnl
3425 dnl ---------------------------------------------------------------------------
3426 dnl CF_GNAT_TRY_RUN version: 6 updated: 2021/01/01 13:31:04
3427 dnl ---------------
3428 dnl Verify that a test program compiles and runs with GNAT
3429 dnl $cf_ada_make is set to the program that compiles/links
3430 dnl $ADAFLAGS may be set to the GNAT flags.
3431 dnl
3432 dnl $1 is the text of the spec
3433 dnl $2 is the text of the body
3434 dnl $3 is the shell command to execute if successful
3435 dnl $4 is the shell command to execute if not successful
3436 AC_DEFUN([CF_GNAT_TRY_RUN],
3437 [
3438 rm -rf ./conftest* ./*~conftest*
3439 cat >>conftest.ads <<CF_EOF
3440 $1
3441 CF_EOF
3442 cat >>conftest.adb <<CF_EOF
3443 $2
3444 CF_EOF
3445 if ( "$cf_ada_make" $ADAFLAGS conftest 1>&AC_FD_CC 2>&1 ) ; then
3446    if ( ./conftest 1>&AC_FD_CC 2>&1 ) ; then
3447 ifelse($3,,      :,[      $3])
3448 ifelse($4,,,[   else
3449       $4])
3450    fi
3451 ifelse($4,,,[else
3452    $4])
3453 fi
3454 rm -rf ./conftest* ./*~conftest*
3455 ])dnl
3456 dnl ---------------------------------------------------------------------------
3457 dnl CF_GNAT_VERSION version: 22 updated: 2019/12/31 08:53:54
3458 dnl ---------------
3459 dnl $1 = cache variable to update
3460 dnl $2 = program name
3461 dnl Verify version of GNAT or related tool
3462 AC_DEFUN([CF_GNAT_VERSION],
3463 [
3464 AC_CACHE_CHECK(for ifelse($2,,gnat,$2) version, cf_cv_gnat_version,[
3465 cf_cv_gnat_version=`ifelse($2,,${cf_ada_make:-gnatmake},$2) --version 2>&1 | \
3466         grep '[[0-9]].[[0-9]][[0-9]]*' |\
3467         sed -e '2,$d' -e 's/[[^0-9 \.]]//g' -e 's/^[[ ]]*//' -e 's/ .*//'`
3468 ])
3469 test -z "$cf_cv_gnat_version" && cf_cv_gnat_version=no
3470 ifelse($1,,,[eval $1=$cf_cv_gnat_version; unset cf_cv_gnat_version])
3471 ])dnl
3472 dnl ---------------------------------------------------------------------------
3473 dnl CF_GNU_SOURCE version: 10 updated: 2018/12/10 20:09:41
3474 dnl -------------
3475 dnl Check if we must define _GNU_SOURCE to get a reasonable value for
3476 dnl _XOPEN_SOURCE, upon which many POSIX definitions depend.  This is a defect
3477 dnl (or misfeature) of glibc2, which breaks portability of many applications,
3478 dnl since it is interwoven with GNU extensions.
3479 dnl
3480 dnl Well, yes we could work around it...
3481 dnl
3482 dnl Parameters:
3483 dnl     $1 is the nominal value for _XOPEN_SOURCE
3484 AC_DEFUN([CF_GNU_SOURCE],
3485 [
3486 cf_gnu_xopen_source=ifelse($1,,500,$1)
3487
3488 AC_CACHE_CHECK(if this is the GNU C library,cf_cv_gnu_library,[
3489 AC_TRY_COMPILE([#include <sys/types.h>],[
3490         #if __GLIBC__ > 0 && __GLIBC_MINOR__ >= 0
3491                 return 0;
3492         #elif __NEWLIB__ > 0 && __NEWLIB_MINOR__ >= 0
3493                 return 0;
3494         #else
3495         #       error not GNU C library
3496         #endif],
3497         [cf_cv_gnu_library=yes],
3498         [cf_cv_gnu_library=no])
3499 ])
3500
3501 if test x$cf_cv_gnu_library = xyes; then
3502
3503         # With glibc 2.19 (13 years after this check was begun), _DEFAULT_SOURCE
3504         # was changed to help a little.  newlib incorporated the change about 4
3505         # years later.
3506         AC_CACHE_CHECK(if _DEFAULT_SOURCE can be used as a basis,cf_cv_gnu_library_219,[
3507                 cf_save="$CPPFLAGS"
3508                 CF_APPEND_TEXT(CPPFLAGS,-D_DEFAULT_SOURCE)
3509                 AC_TRY_COMPILE([#include <sys/types.h>],[
3510                         #if (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 19) || (__GLIBC__ > 2)
3511                                 return 0;
3512                         #elif (__NEWLIB__ == 2 && __NEWLIB_MINOR__ >= 4) || (__GLIBC__ > 3)
3513                                 return 0;
3514                         #else
3515                         #       error GNU C library __GLIBC__.__GLIBC_MINOR__ is too old
3516                         #endif],
3517                         [cf_cv_gnu_library_219=yes],
3518                         [cf_cv_gnu_library_219=no])
3519                 CPPFLAGS="$cf_save"
3520         ])
3521
3522         if test "x$cf_cv_gnu_library_219" = xyes; then
3523                 cf_save="$CPPFLAGS"
3524                 AC_CACHE_CHECK(if _XOPEN_SOURCE=$cf_gnu_xopen_source works with _DEFAULT_SOURCE,cf_cv_gnu_dftsrc_219,[
3525                         CF_ADD_CFLAGS(-D_DEFAULT_SOURCE -D_XOPEN_SOURCE=$cf_gnu_xopen_source)
3526                         AC_TRY_COMPILE([
3527                                 #include <limits.h>
3528                                 #include <sys/types.h>
3529                                 ],[
3530                                 #if (_XOPEN_SOURCE >= $cf_gnu_xopen_source) && (MB_LEN_MAX > 1)
3531                                         return 0;
3532                                 #else
3533                                 #       error GNU C library is too old
3534                                 #endif],
3535                                 [cf_cv_gnu_dftsrc_219=yes],
3536                                 [cf_cv_gnu_dftsrc_219=no])
3537                         ])
3538                 test "x$cf_cv_gnu_dftsrc_219" = "xyes" || CPPFLAGS="$cf_save"
3539         else
3540                 cf_cv_gnu_dftsrc_219=maybe
3541         fi
3542
3543         if test "x$cf_cv_gnu_dftsrc_219" != xyes; then
3544
3545                 AC_CACHE_CHECK(if we must define _GNU_SOURCE,cf_cv_gnu_source,[
3546                 AC_TRY_COMPILE([#include <sys/types.h>],[
3547                         #ifndef _XOPEN_SOURCE
3548                         #error  expected _XOPEN_SOURCE to be defined
3549                         #endif],
3550                         [cf_cv_gnu_source=no],
3551                         [cf_save="$CPPFLAGS"
3552                          CF_ADD_CFLAGS(-D_GNU_SOURCE)
3553                          AC_TRY_COMPILE([#include <sys/types.h>],[
3554                                 #ifdef _XOPEN_SOURCE
3555                                 #error  expected _XOPEN_SOURCE to be undefined
3556                                 #endif],
3557                                 [cf_cv_gnu_source=no],
3558                                 [cf_cv_gnu_source=yes])
3559                         CPPFLAGS="$cf_save"
3560                         ])
3561                 ])
3562
3563                 if test "$cf_cv_gnu_source" = yes
3564                 then
3565                 AC_CACHE_CHECK(if we should also define _DEFAULT_SOURCE,cf_cv_default_source,[
3566                         CF_APPEND_TEXT(CPPFLAGS,-D_GNU_SOURCE)
3567                         AC_TRY_COMPILE([#include <sys/types.h>],[
3568                                 #ifdef _DEFAULT_SOURCE
3569                                 #error  expected _DEFAULT_SOURCE to be undefined
3570                                 #endif],
3571                                 [cf_cv_default_source=no],
3572                                 [cf_cv_default_source=yes])
3573                         ])
3574                         if test "$cf_cv_default_source" = yes
3575                         then
3576                                 CF_APPEND_TEXT(CPPFLAGS,-D_DEFAULT_SOURCE)
3577                         fi
3578                 fi
3579         fi
3580
3581 fi
3582 ])dnl
3583 dnl ---------------------------------------------------------------------------
3584 dnl CF_GPP_LIBRARY version: 13 updated: 2021/01/01 13:31:04
3585 dnl --------------
3586 dnl If we're trying to use g++, test if libg++ is installed (a rather common
3587 dnl problem :-).  If we have the compiler but no library, we'll be able to
3588 dnl configure, but won't be able to build the c++ demo program.
3589 AC_DEFUN([CF_GPP_LIBRARY],
3590 [
3591 cf_cxx_library=unknown
3592 case "$cf_cv_system_name" in
3593 (os2*)
3594         cf_gpp_libname=gpp
3595         ;;
3596 (*)
3597         cf_gpp_libname=g++
3598         ;;
3599 esac
3600 if test "$GXX" = yes; then
3601         AC_MSG_CHECKING([for lib$cf_gpp_libname])
3602         cf_save="$LIBS"
3603         CF_ADD_LIB($cf_gpp_libname)
3604         AC_TRY_LINK([
3605 #include <$cf_gpp_libname/builtin.h>
3606         ],
3607         [two_arg_error_handler_t foo2 = lib_error_handler],
3608         [cf_cxx_library=yes
3609          CF_ADD_LIB($cf_gpp_libname,CXXLIBS)
3610          if test "$cf_gpp_libname" = cpp ; then
3611             AC_DEFINE(HAVE_GPP_BUILTIN_H,1,[Define to 1 if we have gpp builtin.h])
3612          else
3613             AC_DEFINE(HAVE_GXX_BUILTIN_H,1,[Define to 1 if we have g++ builtin.h])
3614          fi],
3615         [AC_TRY_LINK([
3616 #include <builtin.h>
3617         ],
3618         [two_arg_error_handler_t foo2 = lib_error_handler],
3619         [cf_cxx_library=yes
3620          CF_ADD_LIB($cf_gpp_libname,CXXLIBS)
3621          AC_DEFINE(HAVE_BUILTIN_H,1,[Define to 1 if we have builtin.h])],
3622         [cf_cxx_library=no])])
3623         LIBS="$cf_save"
3624         AC_MSG_RESULT($cf_cxx_library)
3625 fi
3626 ])dnl
3627 dnl ---------------------------------------------------------------------------
3628 dnl CF_GXX_VERSION version: 8 updated: 2017/02/11 14:48:57
3629 dnl --------------
3630 dnl Check for version of g++
3631 AC_DEFUN([CF_GXX_VERSION],[
3632 AC_REQUIRE([AC_PROG_CPP])
3633 GXX_VERSION=none
3634 if test "$GXX" = yes; then
3635         AC_MSG_CHECKING(version of ${CXX:-g++})
3636         GXX_VERSION="`${CXX:-g++} --version| sed -e '2,$d' -e 's/^.*(GCC) //' -e 's/^[[^0-9.]]*//' -e 's/[[^0-9.]].*//'`"
3637         if test -z "$GXX_VERSION"
3638         then
3639                 GXX_VERSION=unknown
3640                 GXX=no
3641         fi
3642         AC_MSG_RESULT($GXX_VERSION)
3643 fi
3644 ])dnl
3645 dnl ---------------------------------------------------------------------------
3646 dnl CF_GXX_WARNINGS version: 11 updated: 2021/01/08 16:50:55
3647 dnl ---------------
3648 dnl Check if the compiler supports useful warning options.
3649 dnl
3650 dnl Most of gcc's options apply to g++, except:
3651 dnl     -Wbad-function-cast
3652 dnl     -Wmissing-declarations
3653 dnl     -Wnested-externs
3654 dnl
3655 dnl Omit a few (for now):
3656 dnl     -Winline
3657 dnl
3658 dnl Parameter:
3659 dnl     $1 is an optional list of g++ warning flags that a particular
3660 dnl             application might want to use, e.g., "no-unused" for
3661 dnl             -Wno-unused
3662 dnl Special:
3663 dnl     If $with_ext_const is "yes", add a check for -Wwrite-strings
3664 dnl
3665 AC_DEFUN([CF_GXX_WARNINGS],
3666 [
3667
3668 CF_INTEL_COMPILER(GXX,INTEL_CPLUSPLUS,CXXFLAGS)
3669 CF_CLANG_COMPILER(GXX,CLANG_CPLUSPLUS,CXXFLAGS)
3670
3671 AC_REQUIRE([CF_GXX_VERSION])
3672
3673 AC_LANG_SAVE
3674 AC_LANG_CPLUSPLUS
3675
3676 cat > conftest.$ac_ext <<EOF
3677 #line __oline__ "configure"
3678 int main(int argc, char *argv[[]]) { return (argv[[argc-1]] == 0) ; }
3679 EOF
3680
3681 if test "$INTEL_CPLUSPLUS" = yes
3682 then
3683 # The "-wdXXX" options suppress warnings:
3684 # remark #1419: external declaration in primary source file
3685 # remark #1682: implicit conversion of a 64-bit integral type to a smaller integral type (potential portability problem)
3686 # remark #1683: explicit conversion of a 64-bit integral type to a smaller integral type (potential portability problem)
3687 # remark #1684: conversion from pointer to same-sized integral type (potential portability problem)
3688 # remark #193: zero used for undefined preprocessing identifier
3689 # remark #593: variable "curs_sb_left_arrow" was set but never used
3690 # remark #810: conversion from "int" to "Dimension={unsigned short}" may lose significant bits
3691 # remark #869: parameter "tw" was never referenced
3692 # remark #981: operands are evaluated in unspecified order
3693 # warning #269: invalid format string conversion
3694
3695         AC_CHECKING([for $CC warning options])
3696         cf_save_CXXFLAGS="$CXXFLAGS"
3697         EXTRA_CXXFLAGS="-Wall"
3698         for cf_opt in \
3699                 wd1419 \
3700                 wd1682 \
3701                 wd1683 \
3702                 wd1684 \
3703                 wd193 \
3704                 wd279 \
3705                 wd593 \
3706                 wd810 \
3707                 wd869 \
3708                 wd981
3709         do
3710                 CXXFLAGS="$cf_save_CXXFLAGS $EXTRA_CXXFLAGS -$cf_opt"
3711                 if AC_TRY_EVAL(ac_compile); then
3712                         test -n "$verbose" && AC_MSG_RESULT(... -$cf_opt)
3713                         EXTRA_CXXFLAGS="$EXTRA_CXXFLAGS -$cf_opt"
3714                 fi
3715         done
3716         CXXFLAGS="$cf_save_CXXFLAGS"
3717
3718 elif test "$GXX" = yes
3719 then
3720         AC_CHECKING([for $CXX warning options])
3721         cf_save_CXXFLAGS="$CXXFLAGS"
3722         EXTRA_CXXFLAGS="-W -Wall"
3723         cf_gxx_extra_warnings=""
3724         test "$with_ext_const" = yes && cf_gxx_extra_warnings="Wwrite-strings"
3725         case "$GXX_VERSION" in
3726         ([[1-2]].*)
3727                 ;;
3728         (*)
3729                 cf_gxx_extra_warnings="$cf_gxx_extra_warnings Weffc++"
3730                 ;;
3731         esac
3732         for cf_opt in \
3733                 Wabi \
3734                 fabi-version=0 \
3735                 Wextra \
3736                 Wignored-qualifiers \
3737                 Wlogical-op \
3738                 Woverloaded-virtual \
3739                 Wsign-promo \
3740                 Wsynth \
3741                 Wold-style-cast \
3742                 Wcast-align \
3743                 Wcast-qual \
3744                 Wpointer-arith \
3745                 Wshadow \
3746                 Wundef $cf_gxx_extra_warnings $1
3747         do
3748                 CXXFLAGS="$cf_save_CXXFLAGS $EXTRA_CXXFLAGS -Werror -$cf_opt"
3749                 if AC_TRY_EVAL(ac_compile); then
3750                         test -n "$verbose" && AC_MSG_RESULT(... -$cf_opt)
3751                         EXTRA_CXXFLAGS="$EXTRA_CXXFLAGS -$cf_opt"
3752                 else
3753                         test -n "$verbose" && AC_MSG_RESULT(... no -$cf_opt)
3754                 fi
3755         done
3756         CXXFLAGS="$cf_save_CXXFLAGS"
3757 fi
3758
3759 rm -rf ./conftest*
3760 AC_LANG_RESTORE
3761 AC_SUBST(EXTRA_CXXFLAGS)
3762 ])dnl
3763 dnl ---------------------------------------------------------------------------
3764 dnl CF_HASHED_DB version: 7 updated: 2015/04/18 08:56:57
3765 dnl ------------
3766 dnl Look for an instance of the Berkeley hashed database.
3767 dnl
3768 dnl $1 = optional parameter, to specify install-prefix for the database.
3769 AC_DEFUN([CF_HASHED_DB],
3770 [
3771 ifelse([$1],,,[
3772 case $1 in
3773 (yes|*able*)
3774         ;;
3775 (*)
3776         if test -d "$1" ; then
3777                 CF_ADD_INCDIR($1/include)
3778                 CF_ADD_LIBDIR($1/lib)
3779         else
3780                 case "$1" in
3781                 (./*|../*|/*)
3782                         AC_MSG_WARN(no such directory $1)
3783                         ;;
3784                 (*)
3785                         CF_FIND_SUB_INCDIR($1)
3786                         CF_FIND_SUB_LIBDIR($1)
3787                         ;;
3788                 esac
3789         fi
3790 esac
3791 ])
3792 AC_CHECK_HEADER(db.h,[
3793 CF_HASHED_DB_VERSION
3794 if test "$cf_cv_hashed_db_version" = unknown ; then
3795         AC_MSG_ERROR(Cannot determine version of db)
3796 else
3797         CF_HASHED_DB_LIBS
3798         if test "$cf_cv_hashed_db_libs" = unknown ; then
3799                 AC_MSG_ERROR(Cannot determine library for db)
3800         elif test "$cf_cv_hashed_db_libs" != default ; then
3801                 CF_ADD_LIB($cf_cv_hashed_db_libs)
3802         fi
3803 fi
3804 ],[
3805         AC_MSG_ERROR(Cannot find db.h)
3806 ])
3807 ])dnl
3808 dnl ---------------------------------------------------------------------------
3809 dnl CF_HASHED_DB_LIBS version: 10 updated: 2021/01/02 17:09:14
3810 dnl -----------------
3811 dnl Given that we have the header and version for hashed database, find the
3812 dnl library information.
3813 AC_DEFUN([CF_HASHED_DB_LIBS],
3814 [
3815 AC_CACHE_CHECK(for db libraries, cf_cv_hashed_db_libs,[
3816 cf_cv_hashed_db_libs=unknown
3817 for cf_db_libs in "" db$cf_cv_hashed_db_version db-$cf_cv_hashed_db_version db ''
3818 do
3819         cf_save_libs="$LIBS"
3820         if test -n "$cf_db_libs"; then
3821                 CF_ADD_LIB($cf_db_libs)
3822         fi
3823         CF_MSG_LOG(checking for library $cf_db_libs)
3824         AC_TRY_LINK([
3825 $ac_includes_default
3826 #include <db.h>
3827 ],[
3828         char *path = "/tmp/foo";
3829 #ifdef DB_VERSION_MAJOR
3830 #if DB_VERSION_MAJOR >= 4
3831         DB *result = 0;
3832         db_create(&result, NULL, 0);
3833         result->open(result,
3834                 NULL,
3835                 path,
3836                 path,
3837                 DB_HASH,
3838                 DB_CREATE,
3839                 0644);
3840 #elif DB_VERSION_MAJOR >= 3
3841         DB *result = 0;
3842         db_create(&result, NULL, 0);
3843         result->open(result,
3844                 path,
3845                 path,
3846                 DB_HASH,
3847                 DB_CREATE,
3848                 0644);
3849 #elif DB_VERSION_MAJOR >= 2
3850         DB *result = 0;
3851         db_open(path,
3852                 DB_HASH,
3853                 DB_CREATE,
3854                 0644,
3855                 (DB_ENV *) 0,
3856                 (DB_INFO *) 0,
3857                 &result);
3858 #endif /* DB_VERSION_MAJOR */
3859 #else
3860         DB *result = dbopen(path,
3861                      2,
3862                      0644,
3863                      DB_HASH,
3864                      0);
3865 #endif
3866         ${cf_cv_main_return:-return}(result != 0)
3867 ],[
3868         if test -n "$cf_db_libs" ; then
3869                 cf_cv_hashed_db_libs=$cf_db_libs
3870         else
3871                 cf_cv_hashed_db_libs=default
3872         fi
3873         LIBS="$cf_save_libs"
3874         break
3875 ])
3876         LIBS="$cf_save_libs"
3877 done
3878 ])
3879 ])dnl
3880 dnl ---------------------------------------------------------------------------
3881 dnl CF_HASHED_DB_VERSION version: 5 updated: 2023/02/18 17:41:25
3882 dnl --------------------
3883 dnl Given that we have the header file for hashed database, find the version
3884 dnl information.
3885 AC_DEFUN([CF_HASHED_DB_VERSION],
3886 [
3887 AC_CACHE_CHECK(for version of db, cf_cv_hashed_db_version,[
3888 cf_cv_hashed_db_version=unknown
3889
3890 for cf_db_version in 1 2 3 4 5 6
3891 do
3892         CF_MSG_LOG(checking for db version $cf_db_version)
3893         AC_TRY_COMPILE([
3894 $ac_includes_default
3895 #include <db.h>
3896
3897 #ifdef DB_VERSION_MAJOR
3898         /* db2 (DB_VERSION_MAJOR=2) has also DB_VERSION_MINOR, tested with 7 */
3899 #if $cf_db_version == DB_VERSION_MAJOR
3900         /* ok */
3901 #else
3902         #error $cf_db_version is not DB_VERSION_MAJOR
3903 #endif
3904 #else
3905 #if $cf_db_version == 1
3906         /* ok: assuming this is DB 1.8.5 */
3907 #else
3908         #error $cf_db_version is not 1
3909 #endif
3910 #endif
3911 ],[DBT *foo = 0],[
3912         cf_cv_hashed_db_version=$cf_db_version
3913         break
3914         ])
3915 done
3916 ])
3917 ])dnl
3918 dnl ---------------------------------------------------------------------------
3919 dnl CF_HEADER_PATH version: 15 updated: 2021/01/01 13:31:04
3920 dnl --------------
3921 dnl Construct a search-list of directories for a nonstandard header-file
3922 dnl
3923 dnl Parameters
3924 dnl     $1 = the variable to return as result
3925 dnl     $2 = the package name
3926 AC_DEFUN([CF_HEADER_PATH],
3927 [
3928 $1=
3929
3930 # collect the current set of include-directories from compiler flags
3931 cf_header_path_list=""
3932 if test -n "${CFLAGS}${CPPFLAGS}" ; then
3933         for cf_header_path in $CPPFLAGS $CFLAGS
3934         do
3935                 case "$cf_header_path" in
3936                 (-I*)
3937                         cf_header_path=`echo ".$cf_header_path" |sed -e 's/^...//' -e 's,/include$,,'`
3938                         CF_ADD_SUBDIR_PATH($1,$2,include,$cf_header_path,NONE)
3939                         cf_header_path_list="$cf_header_path_list [$]$1"
3940                         ;;
3941                 esac
3942         done
3943 fi
3944
3945 # add the variations for the package we are looking for
3946 CF_SUBDIR_PATH($1,$2,include)
3947
3948 test "$includedir" != NONE && \
3949 test "$includedir" != "/usr/include" && \
3950 test -d "$includedir" && {
3951         test -d "$includedir" &&    $1="[$]$1 $includedir"
3952         test -d "$includedir/$2" && $1="[$]$1 $includedir/$2"
3953 }
3954
3955 test "$oldincludedir" != NONE && \
3956 test "$oldincludedir" != "/usr/include" && \
3957 test -d "$oldincludedir" && {
3958         test -d "$oldincludedir"    && $1="[$]$1 $oldincludedir"
3959         test -d "$oldincludedir/$2" && $1="[$]$1 $oldincludedir/$2"
3960 }
3961
3962 $1="[$]$1 $cf_header_path_list"
3963 ])dnl
3964 dnl ---------------------------------------------------------------------------
3965 dnl CF_HELP_MESSAGE version: 4 updated: 2019/12/31 08:53:54
3966 dnl ---------------
3967 dnl Insert text into the help-message, for readability, from AC_ARG_WITH.
3968 AC_DEFUN([CF_HELP_MESSAGE],
3969 [CF_ACVERSION_CHECK(2.53,[],[
3970 AC_DIVERT_HELP($1)])dnl
3971 ])dnl
3972 dnl ---------------------------------------------------------------------------
3973 dnl CF_INCLUDE_DIRS version: 10 updated: 2014/09/19 20:58:42
3974 dnl ---------------
3975 dnl Construct the list of include-options according to whether we're building
3976 dnl in the source directory or using '--srcdir=DIR' option.
3977 AC_DEFUN([CF_INCLUDE_DIRS],
3978 [
3979 if test "$srcdir" != "."; then
3980         CPPFLAGS="-I\${srcdir}/../include $CPPFLAGS"
3981 fi
3982 CPPFLAGS="-I../include $CPPFLAGS"
3983 if test "$srcdir" != "."; then
3984         CPPFLAGS="-I\${srcdir} $CPPFLAGS"
3985 fi
3986 CPPFLAGS="-I. $CPPFLAGS"
3987 AC_SUBST(CPPFLAGS)
3988 ])dnl
3989 dnl ---------------------------------------------------------------------------
3990 dnl CF_INSTALL_OPTS version: 2 updated: 2018/08/18 12:19:21
3991 dnl ---------------
3992 dnl prompt for/fill-in useful install-program options
3993 AC_DEFUN([CF_INSTALL_OPTS],
3994 [
3995 CF_INSTALL_OPT_S
3996 CF_INSTALL_OPT_P
3997 CF_INSTALL_OPT_O
3998 ])dnl
3999 dnl ---------------------------------------------------------------------------
4000 dnl CF_INSTALL_OPT_O version: 3 updated: 2020/12/31 20:19:42
4001 dnl ----------------
4002 dnl Almost all "install" programs default to the current user's ownership.
4003 dnl Almost - MINIX is an exception.
4004 AC_DEFUN([CF_INSTALL_OPT_O],
4005 [
4006 AC_MSG_CHECKING(if install needs to be told about ownership)
4007 case `$ac_config_guess` in
4008 (*minix)
4009         with_install_o=yes
4010         ;;
4011 (*)
4012         with_install_o=no
4013         ;;
4014 esac
4015
4016 AC_MSG_RESULT($with_install_o)
4017 if test "x$with_install_o" = xyes
4018 then
4019         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'`"
4020 else
4021         INSTALL_OPT_O=
4022 fi
4023
4024 AC_SUBST(INSTALL_OPT_O)
4025 ])dnl
4026 dnl ---------------------------------------------------------------------------
4027 dnl CF_INSTALL_OPT_P version: 3 updated: 2021/01/01 13:31:04
4028 dnl ----------------
4029 dnl Some install-programs accept a "-p" option to preserve file modification
4030 dnl timestamps.  That can be useful as an install option, as well as a way to
4031 dnl avoid the need for ranlib after copying a static archive.
4032 AC_DEFUN([CF_INSTALL_OPT_P],
4033 [
4034 : "${INSTALL:=install}"
4035 AC_CACHE_CHECK(if install accepts -p option, cf_cv_install_p,[
4036         rm -rf ./conftest*
4037         date >conftest.in
4038         mkdir conftest.out
4039         sleep 3
4040         if $INSTALL -p conftest.in conftest.out 2>/dev/null
4041         then
4042                 if test -f conftest.out/conftest.in
4043                 then
4044                         test conftest.in -nt conftest.out/conftest.in 2>conftest.err && \
4045                         test conftest.out/conftest.in -nt conftest.in 2>conftest.err
4046                         if test -s conftest.err
4047                         then
4048                                 cf_cv_install_p=no
4049                         else
4050                                 cf_cv_install_p=yes
4051                         fi
4052                 else
4053                         cf_cv_install_p=no
4054                 fi
4055         else
4056                 cf_cv_install_p=no
4057         fi
4058         rm -rf ./conftest*
4059 ])
4060 ])dnl
4061 dnl ---------------------------------------------------------------------------
4062 dnl CF_INSTALL_OPT_S version: 3 updated: 2021/01/05 19:23:48
4063 dnl ----------------
4064 dnl By default, we should strip executables which are installed, but leave the
4065 dnl ability to suppress that for unit-testing.
4066 AC_DEFUN([CF_INSTALL_OPT_S],
4067 [
4068 AC_MSG_CHECKING(if you want to install stripped executables)
4069 CF_ARG_DISABLE(stripping,
4070         [  --disable-stripping     do not strip (debug info) installed executables],
4071         [enable_stripping=no],
4072         [enable_stripping=yes])
4073 AC_MSG_RESULT($enable_stripping)
4074
4075 if test "$enable_stripping" = yes
4076 then
4077         INSTALL_OPT_S="-s"
4078 else
4079         INSTALL_OPT_S=
4080 fi
4081 AC_SUBST(INSTALL_OPT_S)
4082 ])dnl
4083 dnl ---------------------------------------------------------------------------
4084 dnl CF_INTEL_COMPILER version: 9 updated: 2023/02/18 17:41:25
4085 dnl -----------------
4086 dnl Check if the given compiler is really the Intel compiler for Linux.  It
4087 dnl tries to imitate gcc, but does not return an error when it finds a mismatch
4088 dnl between prototypes, e.g., as exercised by CF_MISSING_CHECK.
4089 dnl
4090 dnl This macro should be run "soon" after AC_PROG_CC or AC_PROG_CPLUSPLUS, to
4091 dnl ensure that it is not mistaken for gcc/g++.  It is normally invoked from
4092 dnl the wrappers for gcc and g++ warnings.
4093 dnl
4094 dnl $1 = GCC (default) or GXX
4095 dnl $2 = INTEL_COMPILER (default) or INTEL_CPLUSPLUS
4096 dnl $3 = CFLAGS (default) or CXXFLAGS
4097 AC_DEFUN([CF_INTEL_COMPILER],[
4098 AC_REQUIRE([AC_CANONICAL_HOST])
4099 ifelse([$2],,INTEL_COMPILER,[$2])=no
4100
4101 if test "$ifelse([$1],,[$1],GCC)" = yes ; then
4102         case "$host_os" in
4103         (linux*|gnu*)
4104                 AC_MSG_CHECKING(if this is really Intel ifelse([$1],GXX,C++,C) compiler)
4105                 cf_save_CFLAGS="$ifelse([$3],,CFLAGS,[$3])"
4106                 ifelse([$3],,CFLAGS,[$3])="$ifelse([$3],,CFLAGS,[$3]) -no-gcc"
4107                 AC_TRY_COMPILE([],[
4108 #ifdef __INTEL_COMPILER
4109 #else
4110 #error __INTEL_COMPILER is not defined
4111 #endif
4112 ],[ifelse([$2],,INTEL_COMPILER,[$2])=yes
4113 cf_save_CFLAGS="$cf_save_CFLAGS -we147"
4114 ],[])
4115                 ifelse([$3],,CFLAGS,[$3])="$cf_save_CFLAGS"
4116                 AC_MSG_RESULT($ifelse([$2],,INTEL_COMPILER,[$2]))
4117                 ;;
4118         esac
4119 fi
4120 ])dnl
4121 dnl ---------------------------------------------------------------------------
4122 dnl CF_ISASCII version: 4 updated: 2012/10/06 17:56:13
4123 dnl ----------
4124 dnl Check if we have either a function or macro for 'isascii()'.
4125 AC_DEFUN([CF_ISASCII],
4126 [
4127 AC_MSG_CHECKING(for isascii)
4128 AC_CACHE_VAL(cf_cv_have_isascii,[
4129         AC_TRY_LINK([#include <ctype.h>],[int x = isascii(' ')],
4130         [cf_cv_have_isascii=yes],
4131         [cf_cv_have_isascii=no])
4132 ])dnl
4133 AC_MSG_RESULT($cf_cv_have_isascii)
4134 test "$cf_cv_have_isascii" = yes && AC_DEFINE(HAVE_ISASCII,1,[Define to 1 if we have isascii()])
4135 ])dnl
4136 dnl ---------------------------------------------------------------------------
4137 dnl CF_LARGEFILE version: 12 updated: 2020/03/19 20:23:48
4138 dnl ------------
4139 dnl Add checks for large file support.
4140 AC_DEFUN([CF_LARGEFILE],[
4141 ifdef([AC_FUNC_FSEEKO],[
4142         AC_SYS_LARGEFILE
4143         if test "$enable_largefile" != no ; then
4144         AC_FUNC_FSEEKO
4145
4146         # Normally we would collect these definitions in the config.h,
4147         # but (like _XOPEN_SOURCE), some environments rely on having these
4148         # defined before any of the system headers are included.  Another
4149         # case comes up with C++, e.g., on AIX the compiler compiles the
4150         # header files by themselves before looking at the body files it is
4151         # told to compile.  For ncurses, those header files do not include
4152         # the config.h
4153         if test "$ac_cv_sys_large_files" != no
4154         then
4155                 CF_APPEND_TEXT(CPPFLAGS,-D_LARGE_FILES)
4156         fi
4157         if test "$ac_cv_sys_largefile_source" != no
4158         then
4159                 CF_APPEND_TEXT(CPPFLAGS,-D_LARGEFILE_SOURCE)
4160         fi
4161         if test "$ac_cv_sys_file_offset_bits" != no
4162         then
4163                 CF_APPEND_TEXT(CPPFLAGS,-D_FILE_OFFSET_BITS=$ac_cv_sys_file_offset_bits)
4164         fi
4165
4166         AC_CACHE_CHECK(whether to use struct dirent64, cf_cv_struct_dirent64,[
4167                 AC_TRY_COMPILE([
4168 #pragma GCC diagnostic error "-Wincompatible-pointer-types"
4169 #include <sys/types.h>
4170 #include <dirent.h>
4171                 ],[
4172                 /* if transitional largefile support is setup, this is true */
4173                 extern struct dirent64 * readdir(DIR *);
4174                 struct dirent64 *x = readdir((DIR *)0);
4175                 struct dirent *y = readdir((DIR *)0);
4176                 int z = x - y;
4177                 (void)z;
4178                 ],
4179                 [cf_cv_struct_dirent64=yes],
4180                 [cf_cv_struct_dirent64=no])
4181         ])
4182         test "$cf_cv_struct_dirent64" = yes && AC_DEFINE(HAVE_STRUCT_DIRENT64,1,[Define to 1 if we have struct dirent64])
4183         fi
4184 ])
4185 ])
4186 dnl ---------------------------------------------------------------------------
4187 dnl CF_LDFLAGS_STATIC version: 14 updated: 2021/01/02 17:09:14
4188 dnl -----------------
4189 dnl Check for compiler/linker flags used to temporarily force usage of static
4190 dnl libraries.  This depends on the compiler and platform.  Use this to help
4191 dnl ensure that the linker picks up a given library based on its position in
4192 dnl the list of linker options and libraries.
4193 AC_DEFUN([CF_LDFLAGS_STATIC],[
4194
4195 if test "$GCC" = yes ; then
4196         case "$cf_cv_system_name" in
4197         (OS/2*|os2*|aix[[4]]*|solaris2.1[[0-9]]|darwin*)
4198                 LDFLAGS_STATIC=
4199                 LDFLAGS_SHARED=
4200                 ;;
4201         (*)     # normally, except when broken
4202                 LDFLAGS_STATIC=-static
4203                 LDFLAGS_SHARED=-dynamic
4204                 ;;
4205         esac
4206 else
4207         case "$cf_cv_system_name" in
4208         (aix[[4-7]]*)   # from ld manpage
4209                 LDFLAGS_STATIC=-bstatic
4210                 LDFLAGS_SHARED=-bdynamic
4211                 ;;
4212         (hpux*)         # from ld manpage for hpux10.20, hpux11.11
4213                 # We could also use just "archive" and "shared".
4214                 LDFLAGS_STATIC=-Wl,-a,archive_shared
4215                 LDFLAGS_SHARED=-Wl,-a,shared_archive
4216                 ;;
4217         (irix*)         # from ld manpage IRIX64
4218                 LDFLAGS_STATIC=-Bstatic
4219                 LDFLAGS_SHARED=-Bdynamic
4220                 ;;
4221         (osf[[45]]*)    # from ld manpage osf4.0d, osf5.1
4222                 # alternative "-oldstyle_liblookup" (not in cc manpage)
4223                 LDFLAGS_STATIC=-noso
4224                 LDFLAGS_SHARED=-so_archive
4225                 ;;
4226         (solaris2*)
4227                 LDFLAGS_STATIC=-Bstatic
4228                 LDFLAGS_SHARED=-Bdynamic
4229                 ;;
4230         esac
4231 fi
4232
4233 if test -n "$LDFLAGS_STATIC" && test -n "$LDFLAGS_SHARED"
4234 then
4235         AC_MSG_CHECKING(if linker supports switching between static/dynamic)
4236
4237         rm -f libconftest.a
4238         cat >conftest.$ac_ext <<EOF
4239 #line __oline__ "configure"
4240 #include <stdio.h>
4241 int cf_ldflags_static(FILE *fp) { return fflush(fp); }
4242 EOF
4243         if AC_TRY_EVAL(ac_compile) ; then
4244                 ( $AR $ARFLAGS libconftest.a conftest.o ) 2>&AC_FD_CC 1>/dev/null
4245                 ( eval $RANLIB libconftest.a ) 2>&AC_FD_CC >/dev/null
4246         fi
4247         rm -f conftest.*
4248
4249         cf_save_LIBS="$LIBS"
4250
4251         LIBS="$LDFLAGS_STATIC -L`pwd` -lconftest $LDFLAGS_DYNAMIC $LIBS"
4252         AC_TRY_LINK([
4253 #line __oline__ "configure"
4254 #include <stdio.h>
4255 int cf_ldflags_static(FILE *fp);
4256 ],[
4257         return cf_ldflags_static(stdin);
4258 ],[
4259         # some linkers simply ignore the -dynamic
4260         case x`file "conftest$ac_exeext" 2>/dev/null` in
4261         (*static*)
4262                 cf_ldflags_static=no
4263                 ;;
4264         (*)
4265                 cf_ldflags_static=yes
4266                 ;;
4267         esac
4268 ],[cf_ldflags_static=no])
4269
4270         rm -f libconftest.*
4271         LIBS="$cf_save_LIBS"
4272
4273         AC_MSG_RESULT($cf_ldflags_static)
4274
4275         if test "$cf_ldflags_static" != yes
4276         then
4277                 LDFLAGS_STATIC=
4278                 LDFLAGS_SHARED=
4279         fi
4280 else
4281         LDFLAGS_STATIC=
4282         LDFLAGS_SHARED=
4283 fi
4284
4285 AC_SUBST(LDFLAGS_STATIC)
4286 AC_SUBST(LDFLAGS_SHARED)
4287 ])
4288 dnl ---------------------------------------------------------------------------
4289 dnl CF_LD_RPATH_OPT version: 9 updated: 2021/01/01 13:31:04
4290 dnl ---------------
4291 dnl For the given system and compiler, find the compiler flags to pass to the
4292 dnl loader to use the "rpath" feature.
4293 AC_DEFUN([CF_LD_RPATH_OPT],
4294 [
4295 AC_REQUIRE([CF_CHECK_CACHE])
4296
4297 LD_RPATH_OPT=
4298 if test "x$cf_cv_enable_rpath" != xno
4299 then
4300         AC_MSG_CHECKING(for an rpath option)
4301         case "$cf_cv_system_name" in
4302         (irix*)
4303                 if test "$GCC" = yes; then
4304                         LD_RPATH_OPT="-Wl,-rpath,"
4305                 else
4306                         LD_RPATH_OPT="-rpath "
4307                 fi
4308                 ;;
4309         (linux*|gnu*|k*bsd*-gnu|freebsd*)
4310                 LD_RPATH_OPT="-Wl,-rpath,"
4311                 ;;
4312         (openbsd[[2-9]].*|mirbsd*)
4313                 LD_RPATH_OPT="-Wl,-rpath,"
4314                 ;;
4315         (dragonfly*)
4316                 LD_RPATH_OPT="-rpath "
4317                 ;;
4318         (netbsd*)
4319                 LD_RPATH_OPT="-Wl,-rpath,"
4320                 ;;
4321         (osf*|mls+*)
4322                 LD_RPATH_OPT="-rpath "
4323                 ;;
4324         (solaris2*)
4325                 LD_RPATH_OPT="-R"
4326                 ;;
4327         (*)
4328                 ;;
4329         esac
4330         AC_MSG_RESULT($LD_RPATH_OPT)
4331
4332         case "x$LD_RPATH_OPT" in
4333         (x-R*)
4334                 AC_MSG_CHECKING(if we need a space after rpath option)
4335                 cf_save_LIBS="$LIBS"
4336                 CF_ADD_LIBS(${LD_RPATH_OPT}$libdir)
4337                 AC_TRY_LINK(, , cf_rpath_space=no, cf_rpath_space=yes)
4338                 LIBS="$cf_save_LIBS"
4339                 AC_MSG_RESULT($cf_rpath_space)
4340                 test "$cf_rpath_space" = yes && LD_RPATH_OPT="$LD_RPATH_OPT "
4341                 ;;
4342         esac
4343 fi
4344 ])dnl
4345 dnl ---------------------------------------------------------------------------
4346 dnl CF_LD_SEARCHPATH version: 4 updated: 2022/08/27 15:43:08
4347 dnl ----------------
4348 dnl Try to obtain the linker's search-path, for use in scripts.
4349 dnl
4350 dnl Ignore LD_LIBRARY_PATH, etc.
4351 AC_DEFUN([CF_LD_SEARCHPATH],[
4352 AC_CACHE_CHECK(for linker search path,cf_cv_ld_searchpath,[
4353
4354 if test "$cross_compiling" != yes ; then
4355
4356 # GNU binutils' ld does not involve permissions which may stop ldconfig.
4357 cf_pathlist=`${LD:-ld} --verbose 2>/dev/null | grep SEARCH_DIR | sed -e 's,SEARCH_DIR[[("=]][[("=]]*,,g' -e 's/"[[)]];//gp' | sort -u`
4358
4359 # The -NX options tell newer versions of Linux ldconfig to not attempt to
4360 # update the cache, which makes it run faster.
4361 test -z "$cf_pathlist" && \
4362         cf_pathlist=`(ldconfig -NX -v) 2>/dev/null | sed -e '/^[[       ]]/d' -e 's/:$//' | sort -u`
4363
4364 test -z "$cf_pathlist" &&
4365         cf_pathlist=`(ldconfig -v) 2>/dev/null | sed -n -e '/^[[        ]]/d' -e 's/:$//p' | sort -u`
4366
4367 # This works with OpenBSD 6.5, which lists only filenames
4368 test -z "$cf_pathlist" &&
4369         cf_pathlist=`(ldconfig -v) 2>/dev/null | sed -n -e 's,^Adding \(.*\)/.*[$],\1,p' | sort -u`
4370
4371 if test -z "$cf_pathlist"
4372 then
4373         # dyld default path with MacOS
4374         if test -f /usr/bin/otool && test "x`uname -s`" = xDarwin
4375         then
4376                 # do this to bypass check
4377                 cf_cv_ld_searchpath='$HOME/lib'
4378                 cf_pathlist="/usr/local/lib /lib /usr/lib"
4379         fi
4380 fi
4381
4382 if test -z "$cf_pathlist"
4383 then
4384         # Solaris is "SunOS"
4385         if test -f /usr/bin/isainfo && test "x`uname -s`" = xSunOS
4386         then
4387                 case x`(isainfo -b)` in
4388                 (x64)
4389                         cf_pathlist="$cf_pathlist /lib/64 /usr/lib/64"
4390                         ;;
4391                 (x32)
4392                         test -d /usr/ccs/lib && cf_pathlist="$cf_pathlist /usr/ccs/lib"
4393                         cf_pathlist="$cf_pathlist /lib /usr/lib"
4394                         ;;
4395                 (*)
4396                         AC_MSG_WARN(problem with Solaris architecture)
4397                         ;;
4398                 esac
4399         fi
4400 fi
4401
4402 if test -z "$cf_pathlist"
4403 then
4404         # HP-UX
4405         if test x"`uname -s`" = xHP-UX
4406         then
4407                 case x`getconf LONG_BIT` in
4408                 (x64)
4409                         cf_pathlist="/usr/lib/hpux64"
4410                         ;;
4411                 (x*)
4412                         cf_pathlist="/usr/lib/hpux32"
4413                         ;;
4414                 esac
4415         fi
4416 fi
4417
4418 fi
4419
4420 # If nothing else, assume it is conventional
4421 test -z "$cf_pathlist" && cf_pathlist="/usr/lib /lib"
4422
4423 # Finally, check that this is only directories
4424 for cf_path in [$]0 $cf_pathlist
4425 do
4426         if test -d "$cf_path"; then
4427                 test -n "$cf_cv_ld_searchpath" && cf_cv_ld_searchpath="${cf_cv_ld_searchpath} "
4428                 cf_cv_ld_searchpath="${cf_cv_ld_searchpath}${cf_path}"
4429         fi
4430 done
4431
4432 # Ensure that it is nonempty
4433 test -z "$cf_cv_ld_searchpath" && cf_cv_ld_searchpath=/usr/lib
4434 ])
4435
4436 LD_SEARCHPATH=`echo "$cf_cv_ld_searchpath"|sed -e 's/ /|/g'`
4437 AC_SUBST(LD_SEARCHPATH)
4438 ])dnl
4439 dnl ---------------------------------------------------------------------------
4440 dnl CF_LIBRARY_PATH version: 11 updated: 2021/01/01 13:31:04
4441 dnl ---------------
4442 dnl Construct a search-list of directories for a nonstandard library-file
4443 dnl
4444 dnl Parameters
4445 dnl     $1 = the variable to return as result
4446 dnl     $2 = the package name
4447 AC_DEFUN([CF_LIBRARY_PATH],
4448 [
4449 $1=
4450 cf_library_path_list=""
4451 if test -n "${LDFLAGS}${LIBS}" ; then
4452         for cf_library_path in $LDFLAGS $LIBS
4453         do
4454                 case "$cf_library_path" in
4455                 (-L*)
4456                         cf_library_path=`echo ".$cf_library_path" |sed -e 's/^...//' -e 's,/lib$,,'`
4457                         CF_ADD_SUBDIR_PATH($1,$2,lib,$cf_library_path,NONE)
4458                         cf_library_path_list="$cf_library_path_list [$]$1"
4459                         ;;
4460                 esac
4461         done
4462 fi
4463
4464 CF_SUBDIR_PATH($1,$2,lib)
4465
4466 $1="$cf_library_path_list [$]$1"
4467 ])dnl
4468 dnl ---------------------------------------------------------------------------
4469 dnl CF_LIBTOOL_VERSION version: 1 updated: 2013/04/06 18:03:09
4470 dnl ------------------
4471 AC_DEFUN([CF_LIBTOOL_VERSION],[
4472 if test -n "$LIBTOOL" && test "$LIBTOOL" != none
4473 then
4474         cf_cv_libtool_version=`$LIBTOOL --version 2>&1 | sed -e '/^$/d' |sed -e '2,$d' -e 's/([[^)]]*)//g' -e 's/^[[^1-9]]*//' -e 's/[[^0-9.]].*//'`
4475 else
4476         cf_cv_libtool_version=
4477 fi
4478 test -z "$cf_cv_libtool_version" && unset cf_cv_libtool_version
4479 ])dnl
4480 dnl ---------------------------------------------------------------------------
4481 dnl CF_LIB_PREFIX version: 14 updated: 2021/01/01 13:31:04
4482 dnl -------------
4483 dnl Compute the library-prefix for the given host system
4484 dnl $1 = variable to set
4485 define([CF_LIB_PREFIX],
4486 [
4487         case "$cf_cv_system_name" in
4488         (OS/2*|os2*)
4489                 if test "$DFT_LWR_MODEL" = libtool; then
4490                         LIB_PREFIX='lib'
4491                 else
4492                         LIB_PREFIX=''
4493                 fi
4494                 ;;
4495         (*-msvc*)
4496                 LIB_PREFIX=''
4497                 ;;
4498         (*)     LIB_PREFIX='lib'
4499                 ;;
4500         esac
4501 ifelse($1,,,[$1=$LIB_PREFIX])
4502         AC_SUBST(LIB_PREFIX)
4503 ])dnl
4504 dnl ---------------------------------------------------------------------------
4505 dnl CF_LIB_RULES version: 98 updated: 2023/01/07 16:32:06
4506 dnl ------------
4507 dnl Append definitions and rules for the given models to the subdirectory
4508 dnl Makefiles, and the recursion rule for the top-level Makefile.  If the
4509 dnl subdirectory is a library-source directory, modify the Libs_To_Make list in
4510 dnl the corresponding makefile to list the models that we'll generate.
4511 dnl
4512 dnl For shared libraries, make a list of symbolic links to construct when
4513 dnl generating each library.  The convention used for Linux is the simplest
4514 dnl one:
4515 dnl     lib<name>.so    ->
4516 dnl     lib<name>.so.<major>    ->
4517 dnl     lib<name>.so.<maj>.<minor>
4518 dnl
4519 dnl Note: Libs_To_Make is mixed case, since it is not a pure autoconf variable.
4520 AC_DEFUN([CF_LIB_RULES],
4521 [AC_REQUIRE([AC_PROG_FGREP])dnl
4522 AC_REQUIRE([CF_MAKE_PHONY])dnl
4523
4524 cf_prefix=$LIB_PREFIX
4525 AC_REQUIRE([CF_SUBST_NCURSES_VERSION])
4526
4527 case "$cf_cv_shlib_version" in
4528 (cygdll|msysdll|mingw|msvcdll)
4529         TINFO_NAME=$TINFO_ARG_SUFFIX
4530         TINFO_SUFFIX=.dll
4531         ;;
4532 esac
4533
4534 if test -n "$TINFO_SUFFIX" ; then
4535         case "$TINFO_SUFFIX" in
4536         (tw*)
4537                 TINFO_NAME="${TINFO_NAME}tw${EXTRA_SUFFIX}"
4538                 TINFO_SUFFIX=`echo "$TINFO_SUFFIX" | sed 's/^tw'$EXTRA_SUFFIX'//'`
4539                 ;;
4540         (t*)
4541                 TINFO_NAME="${TINFO_NAME}t${EXTRA_SUFFIX}"
4542                 TINFO_SUFFIX=`echo "$TINFO_SUFFIX" | sed 's/^t'$EXTRA_SUFFIX'//'`
4543                 ;;
4544         (w*)
4545                 TINFO_NAME="${TINFO_NAME}w${EXTRA_SUFFIX}"
4546                 TINFO_SUFFIX=`echo "$TINFO_SUFFIX" | sed 's/^w'$EXTRA_SUFFIX'//'`
4547                 ;;
4548         esac
4549 fi
4550
4551 for cf_dir in $SRC_SUBDIRS
4552 do
4553         if test ! -d "$srcdir/$cf_dir" ; then
4554                 continue
4555         elif test -f "$srcdir/$cf_dir/modules" ; then
4556
4557                 SHARED_LIB=
4558                 Libs_To_Make=
4559                 cf_awk_program=
4560                 if test -n "${cf_cv_abi_default}" && test "x${cf_cv_abi_default}" != "x5"
4561                 then
4562                         cf_awk_program="$cf_awk_program\
4563 /deprecated in ABI${cf_cv_abi_default}/ { next; }\
4564 { sub(\"NCURSES([[WT]]+)?\", \"&${cf_cv_abi_default}\"); }\
4565 "
4566                 fi
4567
4568                 if test "x$WILDCARD_SYMS" = xno
4569                 then
4570                         cf_awk_program="$cf_awk_program\
4571 /[[     ]]_\\*;/ { skip=1; next; }\
4572 "
4573                 fi
4574
4575                 if test "x$cf_awk_program" != "x"
4576                 then
4577                         cat >>$cf_dir/Makefile <<CF_EOF
4578
4579 # Generated by CF_LIB_RULES
4580 resulting.map: $UNALTERED_SYMS
4581         $AWK 'BEGIN { skip = 1; last=""; } \
4582 $cf_awk_program \
4583 { if ( last != "" && ( skip == 0 || \[$]\[$]0 !~ /}/ ) ) { print last; }\
4584  skip = 0; last = \[$]\[$]0; } \
4585 END { print last; }' < "$UNALTERED_SYMS" >\[$]@
4586
4587 distclean::
4588         rm -f resulting.map
4589 CF_EOF
4590                 fi
4591
4592                 for cf_item in $cf_LIST_MODELS
4593                 do
4594                         CF_LIB_SUFFIX($cf_item,cf_suffix,cf_depsuf)
4595                         if test "$cf_dir" = "c++"
4596                         then
4597                                 CF_MAP_LIB_BASENAME(cf_libname,cxx)
4598                         else
4599                                 CF_MAP_LIB_BASENAME(cf_libname,$cf_dir)
4600                         fi
4601                         test -z "$cf_libname" && cf_libname="$cf_dir"
4602                         if test "$cf_item" = shared ; then
4603                                 if test -n "${LIB_SUFFIX}"
4604                                 then
4605                                         cf_shared_suffix=`echo "$cf_suffix" | sed 's/^'"${USE_LIB_SUFFIX}"'//'`
4606                                 else
4607                                         cf_shared_suffix="$cf_suffix"
4608                                 fi
4609                                 if test "$cf_cv_do_symlinks" = yes ; then
4610                                         cf_version_name=
4611
4612                                         case "$cf_cv_shlib_version" in
4613                                         (rel)
4614                                                 cf_version_name=REL_VERSION
4615                                                 ;;
4616                                         (abi)
4617                                                 cf_version_name=ABI_VERSION
4618                                                 ;;
4619                                         esac
4620
4621                                         if test -n "$cf_version_name"
4622                                         then
4623                                                 case "$cf_cv_system_name" in
4624                                                 (darwin*)
4625                                                         # "w", etc?
4626                                                         cf_suffix="${USE_LIB_SUFFIX}"'.${'$cf_version_name'}'"$cf_shared_suffix"
4627                                                         ;;
4628                                                 (*)
4629                                                         cf_suffix="$cf_suffix"'.${'$cf_version_name'}'
4630                                                         ;;
4631                                                 esac
4632                                         fi
4633                                         if test -n "${USE_LIB_SUFFIX}"
4634                                         then
4635                                                 cf_shared_suffix=`echo "$cf_suffix" | sed 's/^'"${USE_LIB_SUFFIX}"'//'`
4636                                         else
4637                                                 cf_shared_suffix="$cf_suffix"
4638                                         fi
4639                                 fi
4640                                 # cygwin needs import library, and has unique naming convention
4641                                 # use autodetected ${cf_prefix} for import lib and static lib, but
4642                                 # use 'cyg' prefix for shared lib.
4643                                 case "$cf_cv_shlib_version" in
4644                                 (cygdll)
4645                                         cf_cygsuf=`echo "$cf_suffix" | sed -e 's/\.dll/\${ABI_VERSION}.dll/'`
4646                                         cf_add_lib="../lib/cyg${cf_libname}${cf_cygsuf}"
4647                                         ;;
4648                                 (msysdll)
4649                                         cf_cygsuf=`echo "$cf_suffix" | sed -e 's/\.dll/\${ABI_VERSION}.dll/'`
4650                                         cf_add_lib="../lib/msys-${cf_libname}${cf_cygsuf}"
4651                                         ;;
4652                                 (mingw)
4653                                         cf_cygsuf=`echo "$cf_suffix" | sed -e 's/\.dll/\${ABI_VERSION}.dll/'`
4654                                         cf_add_lib="../lib/lib${cf_libname}${cf_cygsuf}"
4655                                         ;;
4656                                 (msvcdll)
4657                                         cf_cygsuf=`echo "$cf_suffix" | sed -e 's/\.dll/\${ABI_VERSION}.dll/'`
4658                                         cf_add_lib="../lib/${cf_libname}${cf_cygsuf}"
4659                                         ;;
4660                                 (*)
4661                                         cf_add_lib=
4662                                         ;;
4663                                 esac
4664                                 if test -n "$cf_add_lib"
4665                                 then
4666                                         Libs_To_Make="$Libs_To_Make $cf_add_lib"
4667                                         continue
4668                                 fi
4669                         fi
4670                         cf_add_lib="../lib/${cf_prefix}${cf_libname}${cf_suffix}"
4671                         Libs_To_Make="$Libs_To_Make $cf_add_lib"
4672                 done
4673
4674                 if test "$cf_dir" = ncurses ; then
4675                         cf_subsets="$LIB_SUBSETS"
4676                         cf_r_parts="$cf_subsets"
4677                         cf_liblist="$Libs_To_Make"
4678
4679                         while test -n "$cf_r_parts"
4680                         do
4681                                 cf_l_parts=`echo "$cf_r_parts" |sed -e 's/ .*$//'`
4682                                 cf_r_parts=`echo "$cf_r_parts" |sed -e 's/^[[^ ]]* //'`
4683                                 if test "$cf_l_parts" != "$cf_r_parts" ; then
4684                                         cf_add_lib=
4685                                         case "$cf_l_parts" in
4686                                         (*termlib*)
4687                                                 cf_add_lib=`echo "$cf_liblist" |sed -e s%${LIB_NAME}${USE_LIB_SUFFIX}%${TINFO_LIB_SUFFIX}%g`
4688                                                 ;;
4689                                         (*ticlib*)
4690                                                 cf_add_lib=`echo "$cf_liblist" |sed -e s%${LIB_NAME}${USE_LIB_SUFFIX}%${TICS_LIB_SUFFIX}%g`
4691                                                 ;;
4692                                         (*)
4693                                                 break
4694                                                 ;;
4695                                         esac
4696                                         if test -n "$cf_add_lib"; then
4697                                                 Libs_To_Make="$cf_add_lib $Libs_To_Make"
4698                                         fi
4699                                 else
4700                                         break
4701                                 fi
4702                         done
4703                 else
4704                         cf_subsets=`echo "$LIB_SUBSETS" | sed -e 's/^termlib.* //'`
4705                 fi
4706
4707                 if test "$cf_dir" = c++; then
4708                         if test "x$with_shared_cxx" != xyes && test -n "$cf_shared_suffix"; then
4709                                 cf_list=
4710                                 for cf_item in $Libs_To_Make
4711                                 do
4712                                         case "$cf_item" in
4713                                         (*.a)
4714                                                 ;;
4715                                         (*)
4716                                                 cf_item=`echo "$cf_item" | sed -e "s,"$cf_shared_suffix",.a,"`
4717                                                 ;;
4718                                         esac
4719                                         for cf_test in $cf_list
4720                                         do
4721                                                 if test "$cf_test" = "$cf_item"
4722                                                 then
4723                                                         cf_LIST_MODELS=`echo "$cf_LIST_MODELS" | sed -e 's/normal//'`
4724                                                         cf_item=
4725                                                         break
4726                                                 fi
4727                                         done
4728                                         test -n "$cf_item" && cf_list="$cf_list $cf_item"
4729                                 done
4730                                 Libs_To_Make="$cf_list"
4731                         fi
4732                 fi
4733
4734                 sed -e "s%@Libs_To_Make@%$Libs_To_Make%" \
4735                     -e "s%@SHARED_LIB@%$SHARED_LIB%" \
4736                         "$cf_dir/Makefile" >$cf_dir/Makefile.out
4737                 mv "$cf_dir/Makefile.out" "$cf_dir/Makefile"
4738
4739                 $AWK -f "$srcdir/mk-0th.awk" \
4740                         libname="${cf_dir}${LIB_SUFFIX}" subsets="$LIB_SUBSETS" ticlib="$TICS_LIB_SUFFIX" termlib="$TINFO_LIB_SUFFIX" \
4741                         "$srcdir/$cf_dir/modules" >>$cf_dir/Makefile
4742
4743                 for cf_subset in $cf_subsets
4744                 do
4745                         cf_subdirs=
4746                         for cf_item in $cf_LIST_MODELS
4747                         do
4748
4749                         echo "Appending rules for ${cf_item} model (${cf_dir}: ${cf_subset})"
4750                         CF_UPPER(cf_ITEM,$cf_item)
4751
4752                         CXX_MODEL=$cf_ITEM
4753                         if test "$CXX_MODEL" = SHARED; then
4754                                 case "$cf_cv_shlib_version" in
4755                                 (cygdll|msysdll|mingw|msvcdll)
4756                                         test "x$with_shared_cxx" = xno && CF_VERBOSE(overriding CXX_MODEL to SHARED)
4757                                         with_shared_cxx=yes
4758                                         ;;
4759                                 (*)
4760                                         test "x$with_shared_cxx" = xno && CXX_MODEL=NORMAL
4761                                         ;;
4762                                 esac
4763                         fi
4764
4765                         CF_LIB_SUFFIX($cf_item,cf_suffix,cf_depsuf)
4766                         CF_OBJ_SUBDIR($cf_item,cf_subdir)
4767
4768                         # Test for case where we build libtinfo with a different name.
4769                         cf_libname=$cf_dir
4770                         if test "$cf_dir" = ncurses ; then
4771                                 case "$cf_subset" in
4772                                 (*base*)
4773                                         cf_libname=${cf_libname}$USE_LIB_SUFFIX
4774                                         ;;
4775                                 (*termlib*)
4776                                         cf_libname=$TINFO_LIB_SUFFIX
4777                                         ;;
4778                                 (ticlib*)
4779                                         cf_libname=$TICS_LIB_SUFFIX
4780                                         ;;
4781                                 esac
4782                         elif test "$cf_dir" = c++ ; then
4783                                 CF_MAP_LIB_BASENAME(cf_libname,cxx)
4784                                 cf_libname=${cf_libname}$USE_LIB_SUFFIX
4785                         else
4786                                 CF_MAP_LIB_BASENAME(cf_libname,$cf_dir)
4787                                 cf_libname=${cf_libname}$USE_LIB_SUFFIX
4788                         fi
4789                         if test -n "${USE_ARG_SUFFIX}" ; then
4790                                 # undo $USE_LIB_SUFFIX add-on in CF_LIB_SUFFIX
4791                                 cf_suffix=`echo "$cf_suffix" |sed -e "s%^${USE_LIB_SUFFIX}%%"`
4792                         fi
4793
4794                         # These dependencies really are for development, not
4795                         # builds, but they are useful in porting, too.
4796                         cf_depend="../include/ncurses_cfg.h"
4797                         if test "$srcdir" = "."; then
4798                                 cf_reldir="."
4799                         else
4800                                 cf_reldir="\${srcdir}"
4801                         fi
4802
4803                         if test -f "$srcdir/$cf_dir/$cf_dir.priv.h" ; then
4804                                 cf_depend="$cf_depend $cf_reldir/$cf_dir.priv.h"
4805                         elif test -f "$srcdir/$cf_dir/curses.priv.h" ; then
4806                                 cf_depend="$cf_depend $cf_reldir/curses.priv.h"
4807                         fi
4808
4809                         cf_dir_suffix=
4810                         old_cf_suffix="$cf_suffix"
4811                         if test "$cf_cv_shlib_version_infix" = yes ; then
4812                         if test -n "$USE_LIB_SUFFIX" ; then
4813                                 case "$USE_LIB_SUFFIX" in
4814                                 (tw*)
4815                                         cf_libname=`echo "$cf_libname" | sed 's/tw'$EXTRA_SUFFIX'$//'`
4816                                         cf_suffix=`echo "$cf_suffix" | sed 's/^tw'$EXTRA_SUFFIX'//'`
4817                                         cf_dir_suffix=tw$EXTRA_SUFFIX
4818                                         ;;
4819                                 (t*)
4820                                         cf_libname=`echo "$cf_libname" | sed 's/t'$EXTRA_SUFFIX'$//'`
4821                                         cf_suffix=`echo "$cf_suffix" | sed 's/^t'$EXTRA_SUFFIX'//'`
4822                                         cf_dir_suffix=t$EXTRA_SUFFIX
4823                                         ;;
4824                                 (w*)
4825                                         cf_libname=`echo "$cf_libname" | sed 's/w'$EXTRA_SUFFIX'$//'`
4826                                         cf_suffix=`echo "$cf_suffix" | sed 's/^w'$EXTRA_SUFFIX'//'`
4827                                         cf_dir_suffix=w$EXTRA_SUFFIX
4828                                         ;;
4829                                 (*)
4830                                         cf_libname=`echo "$cf_libname" | sed 's/'$EXTRA_SUFFIX'$//'`
4831                                         cf_suffix=`echo "$cf_suffix" | sed 's/^'$EXTRA_SUFFIX'//'`
4832                                         cf_dir_suffix=$EXTRA_SUFFIX
4833                                         ;;
4834                                 esac
4835                         fi
4836                         fi
4837
4838                         $AWK -f "$srcdir/mk-1st.awk" \
4839                                 name=${cf_libname}${cf_dir_suffix} \
4840                                 traces=$LIB_TRACING \
4841                                 MODEL=$cf_ITEM \
4842                                 CXX_MODEL=$CXX_MODEL \
4843                                 LIB_SUFFIX=$LIB_SUFFIX \
4844                                 USE_LIB_SUFFIX=$USE_LIB_SUFFIX \
4845                                 make_phony="${cf_cv_make_PHONY:-no}" \
4846                                 model=$cf_subdir \
4847                                 prefix=$cf_prefix \
4848                                 suffix=$cf_suffix \
4849                                 subset=$cf_subset \
4850                                 driver=$cf_cv_term_driver \
4851                                 SymLink="$LN_S" \
4852                                 TermlibRoot=$TINFO_NAME \
4853                                 TermlibSuffix=$TINFO_SUFFIX \
4854                                 ShlibVer=$cf_cv_shlib_version \
4855                                 ShlibVerInfix=$cf_cv_shlib_version_infix \
4856                                 ReLink=${cf_cv_do_relink:-no} \
4857                                 ReRanlib=${cf_cv_do_reranlib:-yes} \
4858                                 DoLinks=$cf_cv_do_symlinks \
4859                                 rmSoLocs=$cf_cv_rm_so_locs \
4860                                 ldconfig="$LDCONFIG" \
4861                                 overwrite=$WITH_OVERWRITE \
4862                                 depend="$cf_depend" \
4863                                 host="$host" \
4864                                 libtool_version="$LIBTOOL_VERSION" \
4865                                 "$srcdir/$cf_dir/modules" >>$cf_dir/Makefile
4866
4867                         cf_suffix="$old_cf_suffix"
4868
4869                         for cf_subdir2 in $cf_subdirs lib
4870                         do
4871                                 test "$cf_subdir" = "$cf_subdir2" && break
4872                         done
4873                         test "${cf_subset}.${cf_subdir2}" != "${cf_subset}.${cf_subdir}" && \
4874                         $AWK -f "$srcdir/mk-2nd.awk" \
4875                                 name=$cf_dir \
4876                                 traces=$LIB_TRACING \
4877                                 MODEL=$cf_ITEM \
4878                                 model=$cf_subdir \
4879                                 subset=$cf_subset \
4880                                 srcdir=$srcdir \
4881                                 echo=$WITH_ECHO \
4882                                 crenames=$cf_cv_prog_CC_c_o \
4883                                 cxxrenames=$cf_cv_prog_CXX_c_o \
4884                                 "$srcdir/$cf_dir/modules" >>$cf_dir/Makefile
4885                         cf_subdirs="$cf_subdirs $cf_subdir"
4886                         done
4887                 done
4888         fi
4889
4890         echo '  ( cd '$cf_dir' && ${MAKE} ${TOP_MFLAGS} [$]@ )' >>Makefile
4891 done
4892
4893 echo >> Makefile
4894 echo '# generated by CF_LIB_RULES' >> Makefile
4895
4896 if test "x$cf_cv_make_PHONY" = xyes ; then
4897         cat >> Makefile <<-CF_EOF
4898
4899         .PHONY :        libs
4900         .PHONY :        lintlib
4901         .PHONY :        install.includes
4902         .PHONY :        uninstall.includes
4903         .PHONY :        install.libs
4904         .PHONY :        uninstall.libs
4905 CF_EOF
4906 fi
4907
4908 for cf_dir in $SRC_SUBDIRS
4909 do
4910         if test ! -d "$srcdir/$cf_dir" ; then
4911                 continue
4912         fi
4913
4914         if test -f "$cf_dir/Makefile" ; then
4915                 case "$cf_dir" in
4916                 (Ada95)
4917                         echo 'libs \' >> Makefile
4918                         echo 'install.libs \' >> Makefile
4919                         echo 'uninstall.libs ::' >> Makefile
4920                         echo '  ( cd '$cf_dir' && ${MAKE} ${TOP_MFLAGS} [$]@ )' >> Makefile
4921                         ;;
4922                 esac
4923         fi
4924
4925         if test -f "$srcdir/$cf_dir/modules" ; then
4926
4927                 if test "x$cf_cv_make_PHONY" = xyes ; then
4928                         cat >> Makefile <<-CF_EOF
4929
4930                         .PHONY :        install.$cf_dir
4931                         .PHONY :        uninstall.$cf_dir
4932 CF_EOF
4933                 fi
4934
4935                 echo >> Makefile
4936                 if test -f "$srcdir/$cf_dir/headers" ; then
4937 cat >> Makefile <<CF_EOF
4938 install.includes \\
4939 uninstall.includes \\
4940 CF_EOF
4941                 fi
4942
4943 cat >> Makefile <<CF_EOF
4944 lint \\
4945 libs \\
4946 lintlib \\
4947 install.libs \\
4948 uninstall.libs \\
4949 install.$cf_dir \\
4950 uninstall.$cf_dir ::
4951         ( cd "$cf_dir" && \${MAKE} \${TOP_MFLAGS} \[$]@ )
4952 CF_EOF
4953         elif test -f "$srcdir/$cf_dir/headers" ; then
4954 cat >> Makefile <<CF_EOF
4955
4956 libs \\
4957 install.libs \\
4958 uninstall.libs \\
4959 install.includes \\
4960 uninstall.includes ::
4961         ( cd "$cf_dir" && \${MAKE} \${TOP_MFLAGS} \[$]@ )
4962 CF_EOF
4963 fi
4964 done
4965
4966 if test "x$cf_cv_make_PHONY" = xyes ; then
4967         cat >> Makefile <<-CF_EOF
4968
4969         .PHONY :        install.data
4970         .PHONY :        uninstall.data
4971 CF_EOF
4972 fi
4973
4974 if test "x$cf_with_db_install" = xyes; then
4975 cat >> Makefile <<CF_EOF
4976
4977 install.libs uninstall.libs \\
4978 install.data uninstall.data ::
4979 $MAKE_TERMINFO  ( cd misc && \${MAKE} \${TOP_MFLAGS} \[$]@ )
4980 CF_EOF
4981 else
4982 cat >> Makefile <<CF_EOF
4983
4984 install.libs uninstall.libs ::
4985         ( cd misc && \${MAKE} \${TOP_MFLAGS} \[$]@ )
4986 CF_EOF
4987 fi
4988
4989 if test "x$cf_with_manpages" = xyes; then
4990
4991 if test "x$cf_cv_make_PHONY" = xyes ; then
4992         cat >> Makefile <<-CF_EOF
4993
4994         .PHONY :        install.man
4995         .PHONY :        uninstall.man
4996 CF_EOF
4997 fi
4998
4999 cat >> Makefile <<CF_EOF
5000
5001 install.man \\
5002 uninstall.man ::
5003         ( cd man && \${MAKE} \${TOP_MFLAGS} \[$]@ )
5004 CF_EOF
5005 fi
5006
5007 cat >> Makefile <<CF_EOF
5008
5009 distclean ::
5010         rm -f config.cache config.log config.status Makefile include/ncurses_cfg.h
5011         rm -f headers.sh headers.sed mk_shared_lib.sh
5012         rm -f edit_man.* man_alias.*
5013         rm -rf \${DIRS_TO_MAKE}
5014 CF_EOF
5015
5016 # Special case: tack's manpage lives in its own directory.
5017 if test "x$cf_with_manpages" = xyes; then
5018 if test "x$cf_with_tack" = "xyes"; then
5019 cat >> Makefile <<CF_EOF
5020
5021 install.man \\
5022 uninstall.man ::
5023         ( cd tack && \${MAKE} \${TOP_MFLAGS} \[$]@ )
5024 CF_EOF
5025 fi
5026 fi
5027
5028 dnl If we're installing into a subdirectory of /usr/include, etc., we should
5029 dnl prepend the subdirectory's name to the "#include" paths.  It won't hurt
5030 dnl anything, and will make it more standardized.  It's awkward to decide this
5031 dnl at configuration because of quoting, so we'll simply make all headers
5032 dnl installed via a script that can do the right thing.
5033
5034 rm -f headers.sed headers.sh
5035
5036 dnl ( generating this script makes the makefiles a little tidier :-)
5037 echo creating headers.sh
5038 cat >headers.sh <<CF_EOF
5039 #! $SHELL
5040 # This shell script is generated by the 'configure' script.  It is invoked in a
5041 # subdirectory of the build tree.  It generates a sed-script in the parent
5042 # directory that is used to adjust includes for header files that reside in a
5043 # subdirectory of /usr/include, etc.
5044 PRG=""
5045 while test \[$]# != 3
5046 do
5047 PRG="\$PRG \[$]1"; shift
5048 done
5049 DST=\[$]1
5050 REF=\[$]2
5051 SRC=\[$]3
5052 TMPSRC=\${TMPDIR:-/tmp}/\`basename \$SRC\`\$\$
5053 TMPSED=\${TMPDIR:-/tmp}/headers.sed\$\$
5054 echo installing \$SRC in \$DST
5055 CF_EOF
5056
5057 if test "$WITH_CURSES_H" = yes; then
5058         cat >>headers.sh <<CF_EOF
5059 case \$DST in
5060 (/*/include/*)
5061         END=\`basename \$DST\`
5062         for i in \`cat \$REF/../*/headers |${FGREP-fgrep} -v "#"\`
5063         do
5064                 NAME=\`basename \$i\`
5065                 echo "s/<\$NAME>/<\$END\/\$NAME>/" >> \$TMPSED
5066         done
5067         ;;
5068 (*)
5069         echo "" >> \$TMPSED
5070         ;;
5071 esac
5072 CF_EOF
5073
5074 else
5075         cat >>headers.sh <<CF_EOF
5076 case \$DST in
5077 (/*/include/*)
5078         END=\`basename \$DST\`
5079         for i in \`cat \$REF/../*/headers |${FGREP-fgrep} -v "#"\`
5080         do
5081                 NAME=\`basename \$i\`
5082                 if test "\$NAME" = "curses.h"
5083                 then
5084                         echo "s/<curses.h>/<ncurses.h>/" >> \$TMPSED
5085                         NAME=ncurses.h
5086                 fi
5087                 echo "s/<\$NAME>/<\$END\/\$NAME>/" >> \$TMPSED
5088         done
5089         ;;
5090 (*)
5091         echo "s/<curses.h>/<ncurses.h>/" >> \$TMPSED
5092         ;;
5093 esac
5094 CF_EOF
5095 fi
5096 cat >>headers.sh <<CF_EOF
5097 rm -f \$TMPSRC
5098 sed -f \$TMPSED \$SRC > \$TMPSRC
5099 NAME=\`basename \$SRC\`
5100 CF_EOF
5101 if test "$WITH_CURSES_H" != yes; then
5102         cat >>headers.sh <<CF_EOF
5103 test "\$NAME" = "curses.h" && NAME=ncurses.h
5104 CF_EOF
5105 fi
5106 cat >>headers.sh <<CF_EOF
5107 # Just in case someone gzip'd manpages, remove the conflicting copy.
5108 test -f \$DST/\$NAME.gz && rm -f \$DST/\$NAME.gz
5109
5110 eval \$PRG \$TMPSRC \$DST/\$NAME
5111 rm -f \$TMPSRC \$TMPSED
5112 CF_EOF
5113
5114 chmod 0755 headers.sh
5115
5116 for cf_dir in $SRC_SUBDIRS
5117 do
5118         if test ! -d "$srcdir/$cf_dir" ; then
5119                 continue
5120         fi
5121
5122         if test -f "$srcdir/$cf_dir/headers" ; then
5123                 $AWK -f "$srcdir/mk-hdr.awk" \
5124                         subset="$LIB_SUBSETS" \
5125                         compat="$WITH_CURSES_H" \
5126                         "$srcdir/$cf_dir/headers" >>$cf_dir/Makefile
5127         fi
5128
5129         if test -f "$srcdir/$cf_dir/modules" ; then
5130                 if test "$cf_dir" != "c++" ; then
5131                         if test "x$cf_cv_make_PHONY" = xyes ; then
5132                                 cat >> $cf_dir/Makefile <<-CF_EOF
5133
5134                                 .PHONY :        depend
5135 CF_EOF
5136                         fi
5137
5138                         cat >>$cf_dir/Makefile <<"CF_EOF"
5139 depend : ${AUTO_SRC}
5140         makedepend -- ${CPPFLAGS} -- ${C_SRC}
5141
5142 # DO NOT DELETE THIS LINE -- make depend depends on it.
5143 CF_EOF
5144                 fi
5145         fi
5146 done
5147 AC_SUBST(Libs_To_Make)
5148 ])dnl
5149 dnl ---------------------------------------------------------------------------
5150 dnl CF_LIB_SONAME version: 9 updated: 2021/01/04 18:48:01
5151 dnl -------------
5152 dnl Find the and soname for the given shared library.  Set the cache variable
5153 dnl cf_cv_$3_soname to this, unless it is not found.  Then set the cache
5154 dnl variable to "unknown".
5155 dnl
5156 dnl $1 = headers
5157 dnl $2 = code
5158 dnl $3 = library name
5159 AC_DEFUN([CF_LIB_SONAME],
5160 [AC_REQUIRE([AC_PROG_FGREP])dnl
5161
5162 AC_CACHE_CHECK(for soname of $3 library,cf_cv_$3_soname,[
5163
5164 cf_cv_$3_soname=unknown
5165 if test "$cross_compiling" != yes ; then
5166 cat >conftest.$ac_ext <<CF_EOF
5167 $1
5168 int main(void)
5169 {
5170 $2
5171         ${cf_cv_main_return:-return}(0);
5172 }
5173 CF_EOF
5174 cf_save_LIBS="$LIBS"
5175         CF_ADD_LIB($3)
5176         if AC_TRY_EVAL(ac_compile) ; then
5177                 if AC_TRY_EVAL(ac_link) ; then
5178                         cf_cv_$3_soname="`ldd \"conftest$ac_exeext\" 2>/dev/null | sed -e 's,^.*/,,' -e 's, .*$,,' | ${FGREP-fgrep} lib$3.`"
5179                         test -z "$cf_cv_$3_soname" && cf_cv_$3_soname=unknown
5180                 fi
5181         fi
5182 rm -rf ./conftest*
5183 LIBS="$cf_save_LIBS"
5184 fi
5185 ])
5186 ])
5187 dnl ---------------------------------------------------------------------------
5188 dnl CF_LIB_SUFFIX version: 28 updated: 2021/01/01 16:53:59
5189 dnl -------------
5190 dnl Compute the library file-suffix from the given model name
5191 dnl $1 = model name
5192 dnl $2 = variable to set (the nominal library suffix)
5193 dnl $3 = dependency variable to set (actual filename)
5194 dnl The variable $LIB_SUFFIX, if set, prepends the variable to set.
5195 AC_DEFUN([CF_LIB_SUFFIX],
5196 [
5197         case X$1 in
5198         (Xlibtool)
5199                 $2='.la'
5200                 $3=[$]$2
5201                 ;;
5202         (Xdebug)
5203                 case "$cf_cv_system_name" in
5204                 (*-msvc*)
5205                         $2='_g.lib'
5206                         ;;
5207                 (*)
5208                         $2='_g.a'
5209                         ;;
5210                 esac
5211                 $3=[$]$2
5212                 ;;
5213         (Xprofile)
5214                 case "$cf_cv_system_name" in
5215                 (*-msvc*)
5216                         $2='_p.lib'
5217                         ;;
5218                 (*)
5219                         $2='_p.a'
5220                         ;;
5221                 esac
5222                 $3=[$]$2
5223                 ;;
5224         (Xshared)
5225                 case "$cf_cv_system_name" in
5226                 (aix[[5-7]]*)
5227                         $2='.so'
5228                         $3=[$]$2
5229                         ;;
5230                 (*-msvc*)
5231                         $2='.dll'
5232                         $3='.dll.lib'
5233                         ;;
5234                 (cygwin*|msys*|mingw*)
5235                         $2='.dll'
5236                         $3='.dll.a'
5237                         ;;
5238                 (darwin*)
5239                         $2='.dylib'
5240                         $3=[$]$2
5241                         ;;
5242                 (hpux*)
5243                         case "$target" in
5244                         (ia64*)
5245                                 $2='.so'
5246                                 $3=[$]$2
5247                                 ;;
5248                         (*)
5249                                 $2='.sl'
5250                                 $3=[$]$2
5251                                 ;;
5252                         esac
5253                         ;;
5254                 (*)
5255                         $2='.so'
5256                         $3=[$]$2
5257                         ;;
5258                 esac
5259                 ;;
5260         (*)
5261                 case "$target" in
5262                 (*-msvc*)
5263                         $2='.lib'
5264                         ;;
5265                 (*)
5266                         $2='.a'
5267                         ;;
5268                 esac
5269                 $3=[$]$2
5270                 ;;
5271         esac
5272         if test -n "${LIB_SUFFIX}${EXTRA_SUFFIX}"
5273         then
5274                 $2="${LIB_SUFFIX}${EXTRA_SUFFIX}[$]{$2}"
5275                 $3="${LIB_SUFFIX}${EXTRA_SUFFIX}[$]{$3}"
5276         fi
5277 ])dnl
5278 dnl ---------------------------------------------------------------------------
5279 dnl CF_LIB_TYPE version: 5 updated: 2015/04/17 21:13:04
5280 dnl -----------
5281 dnl Compute the string to append to -library from the given model name
5282 dnl $1 = model name
5283 dnl $2 = variable to set
5284 dnl The variable $LIB_SUFFIX, if set, prepends the variable to set.
5285 AC_DEFUN([CF_LIB_TYPE],
5286 [
5287         case $1 in
5288         (libtool) $2=''   ;;
5289         (normal)  $2=''   ;;
5290         (debug)   $2='_g' ;;
5291         (profile) $2='_p' ;;
5292         (shared)  $2=''   ;;
5293         esac
5294         test -n "$LIB_SUFFIX" && $2="${LIB_SUFFIX}[$]{$2}"
5295 ])dnl
5296 dnl ---------------------------------------------------------------------------
5297 dnl CF_LINK_DATAONLY version: 13 updated: 2020/02/08 15:59:30
5298 dnl ----------------
5299 dnl Some systems have a non-ANSI linker that doesn't pull in modules that have
5300 dnl only data (i.e., no functions), for example NeXT.  On those systems we'll
5301 dnl have to provide wrappers for global tables to ensure they're linked
5302 dnl properly.
5303 AC_DEFUN([CF_LINK_DATAONLY],
5304 [
5305 AC_MSG_CHECKING([if data-only library module links])
5306 AC_CACHE_VAL(cf_cv_link_dataonly,[
5307         rm -f conftest.a
5308         cat >conftest.$ac_ext <<EOF
5309 #line __oline__ "configure"
5310 int     testdata[[3]] = { 123, 456, 789 };
5311 EOF
5312         if AC_TRY_EVAL(ac_compile) ; then
5313                 mv conftest.o data.o && \
5314                 ( $AR $ARFLAGS conftest.a data.o ) 2>&AC_FD_CC 1>/dev/null
5315         fi
5316         rm -f conftest.$ac_ext data.o
5317         cat >conftest.$ac_ext <<EOF
5318 #line __oline__ "configure"
5319 int     testfunc(void)
5320 {
5321 #if defined(NeXT)
5322         ${cf_cv_main_return:-return}(1);        /* I'm told this linker is broken */
5323 #else
5324         extern int testdata[[3]];
5325         return testdata[[0]] == 123
5326            &&  testdata[[1]] == 456
5327            &&  testdata[[2]] == 789;
5328 #endif
5329 }
5330 EOF
5331         if AC_TRY_EVAL(ac_compile); then
5332                 mv conftest.o func.o && \
5333                 ( $AR $ARFLAGS conftest.a func.o ) 2>&AC_FD_CC 1>/dev/null
5334         fi
5335         rm -f conftest.$ac_ext func.o
5336         ( eval $RANLIB conftest.a ) 2>&AC_FD_CC >/dev/null
5337         cf_saveLIBS="$LIBS"
5338         LIBS="conftest.a $LIBS"
5339         AC_TRY_RUN([
5340         int main(void)
5341         {
5342                 extern int testfunc();
5343                 ${cf_cv_main_return:-return} (!testfunc());
5344         }
5345         ],
5346         [cf_cv_link_dataonly=yes],
5347         [cf_cv_link_dataonly=no],
5348         [cf_cv_link_dataonly=unknown])
5349         LIBS="$cf_saveLIBS"
5350         ])
5351 AC_MSG_RESULT($cf_cv_link_dataonly)
5352
5353 if test "$cf_cv_link_dataonly" = no ; then
5354         AC_DEFINE(BROKEN_LINKER,1,[if data-only library module does not link])
5355         BROKEN_LINKER=1
5356 fi
5357 AC_SUBST(BROKEN_LINKER)
5358
5359 ])dnl
5360 dnl ---------------------------------------------------------------------------
5361 dnl CF_LINK_FUNCS version: 12 updated: 2023/01/05 17:51:41
5362 dnl -------------
5363 dnl Most Unix systems have both link and symlink, a few don't have symlink.
5364 dnl A few non-Unix systems implement symlink, but not link.
5365 dnl A few non-systems implement neither (or have nonfunctional versions).
5366 dnl
5367 dnl This allows for a 2-second difference in modification times to allow for
5368 dnl some marginal NFS implementations.
5369 AC_DEFUN([CF_LINK_FUNCS],
5370 [
5371 AC_CHECK_HEADERS( \
5372 unistd.h \
5373 )
5374 AC_CHECK_FUNCS( \
5375         remove \
5376         unlink )
5377
5378 if test "$cross_compiling" = yes ; then
5379         AC_CHECK_FUNCS( \
5380                 link \
5381                 symlink )
5382 else
5383         AC_CACHE_CHECK(if link/symlink functions work,cf_cv_link_funcs,[
5384                 cf_cv_link_funcs=
5385                 for cf_func in link symlink ; do
5386                         AC_TRY_RUN([
5387 $ac_includes_default
5388
5389 int main(void)
5390 {
5391         int fail = 0;
5392         char *src = "conftest.tmp";
5393         char *dst = "conftest.chk";
5394         struct stat src_sb, dst_sb;
5395         FILE *fp = fopen(src, "w");
5396         if (fp == 0) { fail = 3; } else {
5397                 fclose(fp); stat(src, &src_sb);
5398                 if ($cf_func(src, dst) < 0) {
5399                         fail = 1;
5400                 } else if (stat(dst, &dst_sb) < 0) {
5401                         fail = 2;
5402                 } else {
5403                         long diff = (dst_sb.st_mtime - src_sb.st_mtime);
5404                         if (diff < 0) diff = -diff;
5405                         if (diff > 2) fail = 3;
5406                 }
5407         }
5408 #ifdef HAVE_UNLINK
5409         unlink(dst); unlink(src);
5410 #else
5411         remove(dst); remove(src);
5412 #endif
5413         ${cf_cv_main_return:-return} (fail);
5414 }
5415                         ],[
5416                         cf_cv_link_funcs="$cf_cv_link_funcs $cf_func"
5417                         eval 'ac_cv_func_'$cf_func'=yes'],[
5418                         eval 'ac_cv_func_'$cf_func'=no'],[
5419                         eval 'ac_cv_func_'$cf_func'=error'])
5420                 done
5421                 test -z "$cf_cv_link_funcs" && cf_cv_link_funcs=no
5422         ])
5423         test "$ac_cv_func_link"    = yes && AC_DEFINE(HAVE_LINK,1,[Define to 1 if we have link() function])
5424         test "$ac_cv_func_symlink" = yes && AC_DEFINE(HAVE_SYMLINK,1,[Define to 1 if we have symlink() function])
5425 fi
5426 ])dnl
5427 dnl ---------------------------------------------------------------------------
5428 dnl CF_MAKEFLAGS version: 21 updated: 2021/09/04 06:47:34
5429 dnl ------------
5430 dnl Some 'make' programs support ${MAKEFLAGS}, some ${MFLAGS}, to pass 'make'
5431 dnl options to lower-levels.  It is very useful for "make -n" -- if we have it.
5432 dnl (GNU 'make' does both, something POSIX 'make', which happens to make the
5433 dnl ${MAKEFLAGS} variable incompatible because it adds the assignments :-)
5434 AC_DEFUN([CF_MAKEFLAGS],
5435 [AC_REQUIRE([AC_PROG_FGREP])dnl
5436
5437 AC_CACHE_CHECK(for makeflags variable, cf_cv_makeflags,[
5438         cf_cv_makeflags=''
5439         for cf_option in '-${MAKEFLAGS}' '${MFLAGS}'
5440         do
5441                 cat >cf_makeflags.tmp <<CF_EOF
5442 SHELL = $SHELL
5443 all :
5444         @ echo '.$cf_option'
5445 CF_EOF
5446                 cf_result=`${MAKE:-make} -k -f cf_makeflags.tmp 2>/dev/null | ${FGREP-fgrep} -v "ing directory" | sed -e 's,[[  ]]*$,,'`
5447                 case "$cf_result" in
5448                 (.*k|.*kw)
5449                         cf_result="`${MAKE:-make} -k -f cf_makeflags.tmp CC=cc 2>/dev/null`"
5450                         case "$cf_result" in
5451                         (.*CC=*)        cf_cv_makeflags=
5452                                 ;;
5453                         (*)     cf_cv_makeflags=$cf_option
5454                                 ;;
5455                         esac
5456                         break
5457                         ;;
5458                 (.-)
5459                         ;;
5460                 (*)
5461                         CF_MSG_LOG(given option \"$cf_option\", no match \"$cf_result\")
5462                         ;;
5463                 esac
5464         done
5465         rm -f cf_makeflags.tmp
5466 ])
5467
5468 AC_SUBST(cf_cv_makeflags)
5469 ])dnl
5470 dnl ---------------------------------------------------------------------------
5471 dnl CF_MAKE_PHONY version: 3 updated: 2021/01/08 16:08:21
5472 dnl -------------
5473 dnl Check if the make-program handles a ".PHONY" target, e.g,. a target which
5474 dnl acts as a placeholder.
5475 dnl
5476 dnl The ".PHONY" feature was proposed in 2011 here
5477 dnl     https://www.austingroupbugs.net/view.php?id=523
5478 dnl and is scheduled for release in P1003.1 Issue 8 (late 2022).
5479 dnl
5480 dnl This is not supported by SVr4 make (or SunOS 4, 4.3SD, etc), but works with
5481 dnl a few others (i.e., GNU make and the non-POSIX "BSD" make):
5482 dnl
5483 dnl + This is a GNU make feature (since April 1988, but in turn from binutils,
5484 dnl   date unspecified).
5485 dnl
5486 dnl + It was adopted in NetBSD make in June 1995.
5487 dnl
5488 dnl + The other BSD make programs are derived from the NetBSD make (and for
5489 dnl   that reason are not actually different "implementations").
5490 dnl
5491 dnl + Some features of NetBSD make were actually adapted from pmake, which
5492 dnl   began as a modified GNU make starting in 1993.
5493 dnl
5494 dnl + Version 3.8 of the dmake program in January 1992 also implemented this
5495 dnl   GNU make extension, but is less well known than the BSD make.
5496 AC_DEFUN([CF_MAKE_PHONY],[
5497 AC_CACHE_CHECK(for \".PHONY\" make-support, cf_cv_make_PHONY,[
5498         rm -rf conftest*
5499         (
5500                 mkdir conftest || exit 1
5501                 cd conftest
5502                 cat >makefile <<'CF_EOF'
5503 .PHONY: always
5504 DATA=0
5505 always: always.out
5506         @echo "** making [$]@ [$](DATA)"
5507 once: once.out
5508         @echo "** making [$]@ [$](DATA)"
5509 always.out:
5510         @echo "** making [$]@ [$](DATA)"
5511         echo [$](DATA) > [$]@
5512 once.out:
5513         @echo "** making [$]@ [$](DATA)"
5514         echo [$](DATA) > [$]@
5515 CF_EOF
5516                 for cf_data in 1 2 3
5517                 do
5518                         ${MAKE:-make} always DATA=$cf_data
5519                         ${MAKE:-make} once   DATA=$cf_data
5520                         ${MAKE:-make} -t always once
5521                         if test -f always ; then
5522                                 echo "no (case 1)" > ../conftest.tmp
5523                         elif test ! -f always.out ; then
5524                                 echo "no (case 2)" > ../conftest.tmp
5525                         elif test ! -f once.out ; then
5526                                 echo "no (case 3)" > ../conftest.tmp
5527                         elif ! cmp -s always.out once.out ; then
5528                                 echo "no (case 4)" > ../conftest.tmp
5529                                 diff always.out once.out
5530                         else
5531                                 cf_check="`cat always.out`"
5532                                 if test "x$cf_check" != "x$cf_data" ; then
5533                                         echo "no (case 5)" > ../conftest.tmp
5534                                 else
5535                                         echo yes > ../conftest.tmp
5536                                         rm -f ./*.out
5537                                         continue
5538                                 fi
5539                         fi
5540                         break
5541                 done
5542         ) >&AC_FD_CC 2>&1
5543         cf_cv_make_PHONY="`cat conftest.tmp`"
5544         rm -rf conftest*
5545 ])
5546 MAKE_NO_PHONY="#"
5547 MAKE_PHONY="#"
5548 test "x$cf_cv_make_PHONY" = xyes && MAKE_PHONY=
5549 test "x$cf_cv_make_PHONY" != xyes && MAKE_NO_PHONY=
5550 AC_SUBST(MAKE_NO_PHONY)
5551 AC_SUBST(MAKE_PHONY)
5552 ])dnl
5553 dnl ---------------------------------------------------------------------------
5554 dnl CF_MAKE_TAGS version: 6 updated: 2010/10/23 15:52:32
5555 dnl ------------
5556 dnl Generate tags/TAGS targets for makefiles.  Do not generate TAGS if we have
5557 dnl a monocase filesystem.
5558 AC_DEFUN([CF_MAKE_TAGS],[
5559 AC_REQUIRE([CF_MIXEDCASE_FILENAMES])
5560
5561 AC_CHECK_PROGS(CTAGS, exctags ctags)
5562 AC_CHECK_PROGS(ETAGS, exetags etags)
5563
5564 AC_CHECK_PROG(MAKE_LOWER_TAGS, ${CTAGS:-ctags}, yes, no)
5565
5566 if test "$cf_cv_mixedcase" = yes ; then
5567         AC_CHECK_PROG(MAKE_UPPER_TAGS, ${ETAGS:-etags}, yes, no)
5568 else
5569         MAKE_UPPER_TAGS=no
5570 fi
5571
5572 if test "$MAKE_UPPER_TAGS" = yes ; then
5573         MAKE_UPPER_TAGS=
5574 else
5575         MAKE_UPPER_TAGS="#"
5576 fi
5577
5578 if test "$MAKE_LOWER_TAGS" = yes ; then
5579         MAKE_LOWER_TAGS=
5580 else
5581         MAKE_LOWER_TAGS="#"
5582 fi
5583
5584 AC_SUBST(CTAGS)
5585 AC_SUBST(ETAGS)
5586
5587 AC_SUBST(MAKE_UPPER_TAGS)
5588 AC_SUBST(MAKE_LOWER_TAGS)
5589 ])dnl
5590 dnl ---------------------------------------------------------------------------
5591 dnl CF_MANPAGE_FORMAT version: 17 updated: 2023/01/21 16:49:25
5592 dnl -----------------
5593 dnl Option to allow user to override automatic configuration of manpage format.
5594 dnl There are several special cases:
5595 dnl
5596 dnl     compress - man checks for, can display compressed files
5597 dnl     bzip2 - man checks for, can display bzip2'd files
5598 dnl     gzip - man checks for, can display gzip'd files
5599 dnl     xz - man checks for, can display xz'd files
5600 dnl
5601 dnl     BSDI - files in the cat-directories are suffixed ".0"
5602 dnl     formatted - installer should format (put files in cat-directory)
5603 dnl     catonly - installer should only format, e.g., for a turnkey system.
5604 dnl
5605 dnl There are other configurations which this macro does not test, e.g., HPUX's
5606 dnl compressed manpages (but uncompressed manpages are fine, and HPUX's naming
5607 dnl convention would not match our use).
5608 AC_DEFUN([CF_MANPAGE_FORMAT],
5609 [
5610 AC_REQUIRE([CF_PATHSEP])
5611 AC_MSG_CHECKING(format of man-pages)
5612
5613 AC_ARG_WITH(manpage-format,
5614         [  --with-manpage-format   specify manpage-format: gzip/compress/bzip2/xz,
5615                           BSDI/normal and optionally formatted/catonly,
5616                           e.g., gzip,formatted],
5617         [MANPAGE_FORMAT=$withval],
5618         [MANPAGE_FORMAT=unknown])
5619
5620 test -z "$MANPAGE_FORMAT" && MANPAGE_FORMAT=unknown
5621 MANPAGE_FORMAT=`echo "$MANPAGE_FORMAT" | sed -e 's/,/ /g'`
5622
5623 cf_unknown=
5624
5625 case "$MANPAGE_FORMAT" in
5626 (unknown)
5627         if test -z "$MANPATH" ; then
5628                 MANPATH="/usr/man:/usr/share/man"
5629         fi
5630
5631         # look for the 'date' man-page (it is most likely to be installed!)
5632         MANPAGE_FORMAT=
5633         cf_preform="no"
5634         cf_catonly="yes"
5635         cf_example="date"
5636
5637         IFS="${IFS:-    }"; ac_save_ifs="$IFS"; IFS="${IFS}${PATH_SEPARATOR}"
5638         for cf_dir in $MANPATH; do
5639                 test -z "$cf_dir" && cf_dir=/usr/man
5640                 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
5641                 do
5642                         cf_test=`echo "$cf_name" | sed -e 's/*//'`
5643                         if test "x$cf_test" = "x$cf_name" ; then
5644
5645                                 case "$cf_name" in
5646                                 (*.bz2) MANPAGE_FORMAT="$MANPAGE_FORMAT bzip2";;
5647                                 (*.xz)  MANPAGE_FORMAT="$MANPAGE_FORMAT xz";;
5648                                 (*.gz)  MANPAGE_FORMAT="$MANPAGE_FORMAT gzip";;
5649                                 (*.Z)   MANPAGE_FORMAT="$MANPAGE_FORMAT compress";;
5650                                 (*.0)   MANPAGE_FORMAT="$MANPAGE_FORMAT BSDI";;
5651                                 (*)     MANPAGE_FORMAT="$MANPAGE_FORMAT normal";;
5652                                 esac
5653
5654                                 case "$cf_name" in
5655                                 ($cf_dir/man*)
5656                                         cf_catonly=no
5657                                         ;;
5658                                 ($cf_dir/cat*)
5659                                         cf_preform=yes
5660                                         ;;
5661                                 esac
5662                                 break
5663                         fi
5664
5665                         # if we found a match in either man* or cat*, stop looking
5666                         if test -n "$MANPAGE_FORMAT" ; then
5667                                 cf_found=no
5668                                 test "$cf_preform" = yes && MANPAGE_FORMAT="$MANPAGE_FORMAT formatted"
5669                                 test "$cf_catonly" = yes && MANPAGE_FORMAT="$MANPAGE_FORMAT catonly"
5670                                 case "$cf_name" in
5671                                 ($cf_dir/cat*)
5672                                         cf_found=yes
5673                                         ;;
5674                                 esac
5675                                 test "$cf_found" = yes && break
5676                         fi
5677                 done
5678                 # only check the first directory in $MANPATH where we find manpages
5679                 if test -n "$MANPAGE_FORMAT" ; then
5680                         break
5681                 fi
5682         done
5683         # if we did not find the example, just assume it is normal
5684         test -z "$MANPAGE_FORMAT" && MANPAGE_FORMAT=normal
5685         IFS="$ac_save_ifs"
5686         ;;
5687 (*)
5688         for cf_option in $MANPAGE_FORMAT; do
5689         case "$cf_option" in
5690         (xz|bzip2|gzip|compress|BSDI|normal|formatted|catonly)
5691                 ;;
5692         (*)
5693                 cf_unknown="$cf_unknown $cf_option"
5694                 ;;
5695         esac
5696         done
5697         ;;
5698 esac
5699
5700 AC_MSG_RESULT($MANPAGE_FORMAT)
5701 if test -n "$cf_unknown" ; then
5702         AC_MSG_WARN(Unexpected manpage-format $cf_unknown)
5703 fi
5704
5705 cf_manpage_format=no
5706 cf_manpage_inboth=no
5707 cf_manpage_so_strip=
5708 cf_manpage_compress=
5709
5710 for cf_item in $MANPAGE_FORMAT
5711 do
5712 case "$cf_item" in
5713 (catonly)
5714         cf_manpage_format=yes
5715         cf_manpage_inboth=no
5716         ;;
5717 (formatted)
5718         cf_manpage_format=yes
5719         cf_manpage_inboth=yes
5720         ;;
5721 (compress)
5722         cf_manpage_so_strip="Z"
5723         cf_manpage_compress=compress
5724         ;;
5725 (gzip)
5726         cf_manpage_so_strip="gz"
5727         cf_manpage_compress=gzip
5728         ;;
5729 (bzip2)
5730         cf_manpage_so_strip="bz2"
5731         cf_manpage_compress=bzip2
5732         ;;
5733 (xz)
5734         cf_manpage_so_strip="xz"
5735         cf_manpage_compress=xz
5736         ;;
5737 esac
5738 done
5739
5740 ])dnl
5741 dnl ---------------------------------------------------------------------------
5742 dnl CF_MANPAGE_RENAMES version: 17 updated: 2022/10/23 07:46:29
5743 dnl ------------------
5744 dnl The Debian people have their own naming convention for manpages.  This
5745 dnl option lets us override the name of the file containing renaming, or
5746 dnl disable it altogether.
5747 AC_DEFUN([CF_MANPAGE_RENAMES],
5748 [
5749 AC_MSG_CHECKING(for manpage renaming)
5750
5751 AC_ARG_WITH(manpage-renames,
5752         [  --with-manpage-renames  specify manpage-renaming],
5753         [MANPAGE_RENAMES=$withval],
5754         [MANPAGE_RENAMES=yes])
5755
5756 case ".$MANPAGE_RENAMES" in
5757 (.no)
5758         ;;
5759 (.|.yes)
5760         # Debian 'man' program?
5761         if test -f /etc/debian_version ; then
5762                 MANPAGE_RENAMES=man/man_db.renames
5763         else
5764                 MANPAGE_RENAMES=no
5765         fi
5766         ;;
5767 esac
5768
5769 if test "$MANPAGE_RENAMES" = man/man_db.renames ; then
5770         MANPAGE_RENAMES=`pwd`/$MANPAGE_RENAMES
5771 elif test "$MANPAGE_RENAMES" = no ; then
5772         :
5773 elif test ! -f "$MANPAGE_RENAMES" ; then
5774         AC_MSG_ERROR(not a filename: $MANPAGE_RENAMES)
5775 fi
5776
5777 AC_MSG_RESULT($MANPAGE_RENAMES)
5778 AC_SUBST(MANPAGE_RENAMES)
5779 ])dnl
5780 dnl ---------------------------------------------------------------------------
5781 dnl CF_MANPAGE_SYMLINKS version: 7 updated: 2023/01/21 16:37:17
5782 dnl -------------------
5783 dnl Some people expect each tool to make all aliases for manpages in the
5784 dnl man-directory.  This accommodates the older, less-capable implementations
5785 dnl of 'man', and is optional.
5786 AC_DEFUN([CF_MANPAGE_SYMLINKS],
5787 [
5788 AC_MSG_CHECKING(if manpage aliases will be installed)
5789
5790 AC_ARG_WITH(manpage-aliases,
5791         [  --with-manpage-aliases  specify manpage-aliases using .so],
5792         [MANPAGE_ALIASES=$withval],
5793         [MANPAGE_ALIASES=yes])
5794
5795 AC_MSG_RESULT($MANPAGE_ALIASES)
5796
5797 case "x$LN_S" in
5798 (xln*)
5799         cf_use_symlinks=yes
5800         ;;
5801 (*)
5802         cf_use_symlinks=no
5803         ;;
5804 esac
5805
5806 MANPAGE_SYMLINKS=no
5807 if test "$MANPAGE_ALIASES" = yes ; then
5808 AC_MSG_CHECKING(if manpage symlinks should be used)
5809
5810 AC_ARG_WITH(manpage-symlinks,
5811         [  --with-manpage-symlinks specify manpage-aliases using symlinks],
5812         [MANPAGE_SYMLINKS=$withval],
5813         [MANPAGE_SYMLINKS=$cf_use_symlinks])
5814
5815 if test "$cf_use_symlinks" = no; then
5816 if test "$MANPAGE_SYMLINKS" = yes ; then
5817         AC_MSG_WARN(cannot make symlinks, will use .so files)
5818         MANPAGE_SYMLINKS=no
5819 fi
5820 fi
5821
5822 AC_MSG_RESULT($MANPAGE_SYMLINKS)
5823 fi
5824
5825 ])dnl
5826 dnl ---------------------------------------------------------------------------
5827 dnl CF_MANPAGE_TBL version: 3 updated: 2002/01/19 22:51:32
5828 dnl --------------
5829 dnl This option causes manpages to be run through tbl(1) to generate tables
5830 dnl correctly.
5831 AC_DEFUN([CF_MANPAGE_TBL],
5832 [
5833 AC_MSG_CHECKING(for manpage tbl)
5834
5835 AC_ARG_WITH(manpage-tbl,
5836         [  --with-manpage-tbl      specify manpage processing with tbl],
5837         [MANPAGE_TBL=$withval],
5838         [MANPAGE_TBL=no])
5839
5840 AC_MSG_RESULT($MANPAGE_TBL)
5841 ])dnl
5842 dnl ---------------------------------------------------------------------------
5843 dnl CF_MAN_PAGES version: 56 updated: 2023/01/21 16:49:25
5844 dnl ------------
5845 dnl Try to determine if the man-pages on the system are compressed, and if
5846 dnl so, what format is used.  Use this information to construct a script that
5847 dnl will install man-pages.
5848 AC_DEFUN([CF_MAN_PAGES],
5849 [
5850 CF_HELP_MESSAGE(Options to Specify How Manpages are Installed:)
5851 CF_MANPAGE_FORMAT
5852 CF_MANPAGE_RENAMES
5853 CF_MANPAGE_SYMLINKS
5854 CF_MANPAGE_TBL
5855
5856 if test "$prefix" = "NONE" ; then
5857         cf_prefix="$ac_default_prefix"
5858 else
5859         cf_prefix="$prefix"
5860 fi
5861
5862 test ! -d man && mkdir man
5863
5864 cf_edit_man=./edit_man.sh
5865 cf_man_alias=`pwd`/man_alias.sed
5866
5867 cat >$cf_edit_man <<CF_EOF
5868 #! $SHELL
5869 # this script is generated by the configure-script CF_MAN_PAGES macro.
5870
5871 prefix="$cf_prefix"
5872 datarootdir="$datarootdir"
5873 datadir="$datadir"
5874
5875 NCURSES_MAJOR="$NCURSES_MAJOR"
5876 NCURSES_MINOR="$NCURSES_MINOR"
5877 NCURSES_PATCH="$NCURSES_PATCH"
5878
5879 NCURSES_OSPEED="$NCURSES_OSPEED"
5880 TERMINFO="$TERMINFO"
5881
5882 INSTALL="$INSTALL"
5883 INSTALL_DATA="$INSTALL_DATA"
5884
5885 transform="$program_transform_name"
5886
5887 TMP=\${TMPDIR:=/tmp}/man\$\$
5888 trap "rm -f \$TMP; exit 1" 1 2 3 15
5889 trap "rm -f \$TMP" 0
5890
5891 form=\[$]1
5892 shift || exit 1
5893
5894 verb=\[$]1
5895 shift || exit 1
5896
5897 mandir=\[$]1
5898 shift || exit 1
5899
5900 srcdir=\[$]1
5901 top_srcdir=\[$]srcdir/..
5902 shift || exit 1
5903
5904 if test "\$form" = normal ; then
5905         if test "$cf_manpage_format" = yes ; then
5906         if test "$cf_manpage_inboth" = no ; then
5907                 $SHELL "\[$]0" format "\$verb" "\$mandir" "\$srcdir" "\[$]@"
5908                 exit $?
5909         fi
5910         fi
5911         cf_subdir=\$mandir/man
5912         cf_tables=$MANPAGE_TBL
5913 else
5914         cf_subdir=\$mandir/cat
5915         cf_tables=yes
5916 fi
5917
5918 # process the list of source-files
5919 for i in "\[$]@" ; do
5920 case \$i in
5921 (*.orig|*.rej) ;;
5922 (*.[[0-9]]*)
5923         section=\`expr "\$i" : '.*\\.\\([[0-9]]\\)[[xm]]*'\`;
5924         if test "\$verb" = installing ; then
5925         if test ! -d "\$cf_subdir\${section}" ; then
5926                 mkdir -p "\$cf_subdir\$section"
5927         fi
5928         fi
5929
5930         # replace variables in man page
5931         if test ! -f "$cf_man_alias" ; then
5932 cat >>$cf_man_alias <<-CF_EOF2
5933                 s,@DATADIR@,\$datadir,g
5934                 s,@TERMINFO@,\${TERMINFO:="no default value"},g
5935                 s,@TERMINFO_DIRS@,\${TERMINFO_DIRS:="no default value"},g
5936                 s,@NCURSES_MAJOR@,\${NCURSES_MAJOR:="no default value"},g
5937                 s,@NCURSES_MINOR@,\${NCURSES_MINOR:="no default value"},g
5938                 s,@NCURSES_PATCH@,\${NCURSES_PATCH:="no default value"},g
5939                 s,@NCURSES_OSPEED@,\${NCURSES_OSPEED:="no default value"},g
5940 CF_EOF
5941         ifelse($1,,,[
5942         for cf_name in $1
5943         do
5944                 cf_NAME=`echo "$cf_name" | sed y%abcdefghijklmnopqrstuvwxyz./-%ABCDEFGHIJKLMNOPQRSTUVWXYZ___%`
5945                 cf_name=`echo "$cf_name" | sed "$program_transform_name"`
5946 cat >>$cf_edit_man <<-CF_EOF
5947                 s,@$cf_NAME@,$cf_name,g
5948 CF_EOF
5949         done
5950         ])
5951 cat >>$cf_edit_man <<CF_EOF
5952 CF_EOF2
5953                 echo "...made $cf_man_alias"
5954         fi
5955
5956         aliases=
5957         cf_source=\`basename "\$i"\`
5958         cf_full_alias=\$cf_source
5959         test ! -f "\$cf_full_alias" && cf_full_alias="\$srcdir/\$cf_full_alias"
5960         if test ! -f "\$cf_full_alias" ; then
5961                 echo ".. skipped \$cf_source"
5962                 continue
5963         fi
5964 CF_EOF
5965
5966 if test "$MANPAGE_ALIASES" != no ; then
5967 cat >>$cf_edit_man <<CF_EOF
5968         nCurses=ignore.3x
5969         cf_part_alias=\`echo \$cf_full_alias| sed -e 's,^.*/,,'\`
5970         test "$with_curses_h" = yes && nCurses=ncurses.3x
5971         aliases=\`sed -f "\$top_srcdir/man/manlinks.sed" "\$cf_full_alias" |sed -f "$cf_man_alias" | sort -u; test "\$cf_part_alias" = "\$nCurses" && echo curses\`
5972 CF_EOF
5973 fi
5974
5975 if test "$MANPAGE_RENAMES" = no ; then
5976 cat >>$cf_edit_man <<CF_EOF
5977         # perform program transformations for section 1 man pages
5978         if test \$section = 1 ; then
5979                 cf_target=\$cf_subdir\${section}/\`echo \$cf_source|sed "\${transform}"\`
5980         else
5981                 cf_target=\$cf_subdir\${section}/\$cf_source
5982         fi
5983 CF_EOF
5984 else
5985 cat >>$cf_edit_man <<CF_EOF
5986         cf_target=\`grep "^\$cf_source" $MANPAGE_RENAMES | $AWK '{print \[$]2}'\`
5987         if test -z "\$cf_target" ; then
5988                 echo "? missing rename for \$cf_source"
5989                 cf_target="\$cf_source"
5990         fi
5991         cf_target="\$cf_subdir\${section}/\${cf_target}"
5992
5993 CF_EOF
5994 fi
5995
5996 cat >>$cf_edit_man <<CF_EOF
5997         sed     -f "$cf_man_alias" \\
5998 CF_EOF
5999
6000 if test "$MANPAGE_RENAMES" != no ; then
6001 cat >>$cf_edit_man <<CF_EOF
6002                 < "\$i" | sed -f `pwd`/edit_man.sed >\$TMP
6003 CF_EOF
6004 else
6005 cat >>$cf_edit_man <<CF_EOF
6006                 < "\$i" >\$TMP
6007 CF_EOF
6008 fi
6009
6010 cat >>$cf_edit_man <<CF_EOF
6011 if test \$cf_tables = yes ; then
6012         tbl \$TMP >\$TMP.out
6013         mv \$TMP.out \$TMP
6014 fi
6015 CF_EOF
6016
6017 if test "$with_overwrite" != yes ; then
6018 cat >>$cf_edit_man <<CF_EOF
6019         sed -e "/\\#[    ]*include/s,<curses.h,<ncurses$LIB_SUFFIX/curses.h," < \$TMP >\$TMP.out
6020         mv \$TMP.out \$TMP
6021 CF_EOF
6022 fi
6023
6024 if test "$with_curses_h" != yes ; then
6025 cat >>$cf_edit_man <<CF_EOF
6026         sed -e "/\\#[    ]*include/s,curses.h,ncurses.h," < \$TMP >\$TMP.out
6027         mv \$TMP.out \$TMP
6028 CF_EOF
6029 fi
6030
6031 cat >>$cf_edit_man <<CF_EOF
6032         if test "\$form" = format ; then
6033                 nroff -man \$TMP >\$TMP.out
6034                 mv \$TMP.out \$TMP
6035         fi
6036 CF_EOF
6037
6038 if test -n "$cf_manpage_compress" ; then
6039 cat >>$cf_edit_man <<CF_EOF
6040         if test "\$verb" = installing ; then
6041         if ( "$cf_manpage_compress" -f \$TMP )
6042         then
6043                 mv \$TMP.$cf_manpage_so_strip \$TMP
6044         fi
6045         fi
6046         cf_target="\$cf_target.$cf_manpage_so_strip"
6047 CF_EOF
6048 fi
6049
6050 case "$MANPAGE_FORMAT" in
6051 (*BSDI*)
6052 cat >>$cf_edit_man <<CF_EOF
6053         if test "\$form" = format ; then
6054                 # BSDI installs only .0 suffixes in the cat directories
6055                 cf_target="\`echo \$cf_target|sed -e 's/\\.[[1-9]]\\+[[a-z]]*/.0/'\`"
6056         fi
6057 CF_EOF
6058   ;;
6059 esac
6060
6061 cat >>$cf_edit_man <<CF_EOF
6062         suffix=\`basename "\$cf_target" | sed -e 's%^[[^.]]*%%'\`
6063         if test "\$verb" = installing ; then
6064                 echo "\$verb \$cf_target"
6065                 \$INSTALL_DATA \$TMP "\$cf_target"
6066                 test -d "\$cf_subdir\${section}" &&
6067                 test -n "\$aliases" && (
6068                         cd "\$cf_subdir\${section}" && (
6069                                 cf_source=\`echo "\$cf_target" |sed -e 's%^.*/\\([[^/]][[^/]]*/[[^/]][[^/]]*$\\)%\\1%'\`
6070                                 test -n "$cf_manpage_so_strip" && cf_source=\`echo "\$cf_source" |sed -e 's%\\.$cf_manpage_so_strip\$%%'\`
6071                                 cf_target=\`basename "\$cf_target"\`
6072                                 for cf_alias in \$aliases
6073                                 do
6074                                         if test "\$section" = 1 ; then
6075                                                 cf_alias=\`echo "\$cf_alias" |sed "\${transform}"\`
6076                                         fi
6077
6078                                         if test "$MANPAGE_SYMLINKS" = yes ; then
6079                                                 if test -f "\$cf_alias\${suffix}" ; then
6080                                                         if ( cmp -s "\$cf_target" "\$cf_alias\${suffix}" )
6081                                                         then
6082                                                                 continue
6083                                                         fi
6084                                                 fi
6085                                                 echo ".. \$verb alias \$cf_alias\${suffix}"
6086 CF_EOF
6087 case "x$LN_S" in
6088 (*-f)
6089 cat >>$cf_edit_man <<CF_EOF
6090                                                 $LN_S "\$cf_target" "\$cf_alias\${suffix}"
6091 CF_EOF
6092         ;;
6093 (*)
6094 cat >>$cf_edit_man <<CF_EOF
6095                                                 rm -f "\$cf_alias\${suffix}"
6096                                                 $LN_S "\$cf_target" "\$cf_alias\${suffix}"
6097 CF_EOF
6098         ;;
6099 esac
6100 cat >>$cf_edit_man <<CF_EOF
6101                                         elif test "\$cf_target" != "\$cf_alias\${suffix}" ; then
6102                                                 echo ".so \$cf_source" >\$TMP
6103 CF_EOF
6104 if test -n "$cf_manpage_compress" ; then
6105 cat >>$cf_edit_man <<CF_EOF
6106                                                 if test -n "$cf_manpage_so_strip" ; then
6107                                                         "$cf_manpage_compress" -f \$TMP
6108                                                         mv \$TMP.$cf_manpage_so_strip \$TMP
6109                                                 fi
6110 CF_EOF
6111 fi
6112 cat >>$cf_edit_man <<CF_EOF
6113                                                 echo ".. \$verb alias \$cf_alias\${suffix}"
6114                                                 rm -f "\$cf_alias\${suffix}"
6115                                                 \$INSTALL_DATA \$TMP "\$cf_alias\${suffix}"
6116                                         fi
6117                                 done
6118                         )
6119                 )
6120         elif test "\$verb" = removing ; then
6121                 test -f "\$cf_target" && (
6122                         echo "\$verb \$cf_target"
6123                         rm -f "\$cf_target"
6124                 )
6125                 test -d "\$cf_subdir\${section}" &&
6126                 test -n "\$aliases" && (
6127                         cd "\$cf_subdir\${section}" && (
6128                                 for cf_alias in \$aliases
6129                                 do
6130                                         if test "\$section" = 1 ; then
6131                                                 cf_alias=\`echo "\$cf_alias" |sed "\${transform}"\`
6132                                         fi
6133
6134                                         echo ".. \$verb alias \$cf_alias\${suffix}"
6135                                         rm -f "\$cf_alias\${suffix}"
6136                                 done
6137                         )
6138                 )
6139         else
6140 #               echo ".hy 0"
6141                 cat \$TMP
6142         fi
6143         ;;
6144 esac
6145 done
6146
6147 if test "$cf_manpage_inboth" = yes ; then
6148 if test "\$form" != format ; then
6149         $SHELL "\[$]0" format "\$verb" "\$mandir" "\$srcdir" "\[$]@"
6150 fi
6151 fi
6152
6153 exit 0
6154 CF_EOF
6155 chmod 755 "$cf_edit_man"
6156
6157 ])dnl
6158 dnl ---------------------------------------------------------------------------
6159 dnl CF_MAP_LIB_BASENAME version: 2 updated: 2021/01/02 17:09:14
6160 dnl -------------------
6161 dnl Convert a default-libname to the actual one used via CF_WITH_LIB_BASENAME.
6162 dnl
6163 dnl $1 = variable to set
6164 dnl $2 = default-libname
6165 AC_DEFUN([CF_MAP_LIB_BASENAME],[
6166 CF_UPPER(cf_map_lib_basename,$2)
6167 eval $1="\$${cf_map_lib_basename}_NAME"
6168 ])dnl
6169 dnl ---------------------------------------------------------------------------
6170 dnl CF_MATH_LIB version: 11 updated: 2022/07/27 19:01:48
6171 dnl -----------
6172 dnl Checks for libraries.  At least one UNIX system, Apple Macintosh
6173 dnl Rhapsody 5.5, does not have -lm.  We cannot use the simpler
6174 dnl AC_CHECK_LIB(m,sin), because that fails for C++.
6175 AC_DEFUN([CF_MATH_LIB],
6176 [
6177 AC_CACHE_CHECK(if -lm needed for math functions,
6178         cf_cv_need_libm,[
6179         AC_TRY_LINK([
6180                 #include <stdio.h>
6181                 #include <stdlib.h>
6182                 #include <math.h>
6183         ],
6184         [double x = rand(); printf("result = %g\\n", ]ifelse([$2],,sin(x),$2)[)],
6185         [cf_cv_need_libm=no],
6186         [cf_cv_need_libm=yes])])
6187
6188 if test "$cf_cv_need_libm" = yes
6189 then
6190
6191         cf_save_LIBS="$LIBS"
6192         LIBS="$LIBS -lm"
6193         AC_CACHE_CHECK(if -lm is available for math functions,
6194         cf_cv_have_libm,[
6195         AC_TRY_LINK([
6196                 #include <stdio.h>
6197                 #include <stdlib.h>
6198                 #include <math.h>
6199         ],
6200         [double x = rand(); printf("result = %g\\n", ]ifelse([$2],,sin(x),$2)[)],
6201         [cf_cv_have_libm=yes],
6202         [cf_cv_have_libm=no])])
6203         LIBS="$cf_save_LIBS"
6204
6205         if test "$cf_cv_have_libm" = yes
6206         then
6207                 ifelse($1,,[CF_ADD_LIB(m)],[$1=-lm])
6208         fi
6209 else
6210         cf_cv_have_libm=yes
6211 fi
6212
6213 if test "$cf_cv_have_libm" = yes
6214 then
6215         AC_DEFINE(HAVE_MATH_FUNCS,1,[Define to 1 if math functions are available])
6216 fi
6217 ])
6218 dnl ---------------------------------------------------------------------------
6219 dnl CF_MIXEDCASE_FILENAMES version: 9 updated: 2021/01/01 16:53:59
6220 dnl ----------------------
6221 dnl Check if the file-system supports mixed-case filenames.  If we're able to
6222 dnl create a lowercase name and see it as uppercase, it doesn't support that.
6223 AC_DEFUN([CF_MIXEDCASE_FILENAMES],
6224 [
6225 AC_CACHE_CHECK(if filesystem supports mixed-case filenames,cf_cv_mixedcase,[
6226 if test "$cross_compiling" = yes ; then
6227         case "$target_alias" in
6228         (*-os2-emx*|*-msdosdjgpp*|*-cygwin*|*-msys*|*-mingw*|*-uwin*|darwin*)
6229                 cf_cv_mixedcase=no
6230                 ;;
6231         (*)
6232                 cf_cv_mixedcase=yes
6233                 ;;
6234         esac
6235 else
6236         rm -f conftest CONFTEST
6237         echo test >conftest
6238         if test -f CONFTEST ; then
6239                 cf_cv_mixedcase=no
6240         else
6241                 cf_cv_mixedcase=yes
6242         fi
6243         rm -f conftest CONFTEST
6244 fi
6245 ])
6246 test "$cf_cv_mixedcase" = yes && AC_DEFINE(MIXEDCASE_FILENAMES,1,[Define to 1 if filesystem supports mixed-case filenames.])
6247 ])dnl
6248 dnl ---------------------------------------------------------------------------
6249 dnl CF_MKSTEMP version: 12 updated: 2023/01/05 17:53:11
6250 dnl ----------
6251 dnl Check for a working mkstemp.  This creates two files, checks that they are
6252 dnl successfully created and distinct (AmigaOS apparently fails on the last).
6253 AC_DEFUN([CF_MKSTEMP],[
6254 AC_CHECK_HEADERS( \
6255 unistd.h \
6256 )
6257 AC_CACHE_CHECK(for working mkstemp, cf_cv_func_mkstemp,[
6258 rm -rf ./conftest*
6259 AC_TRY_RUN([
6260 $ac_includes_default
6261
6262 int main(void)
6263 {
6264         char *tmpl = "conftestXXXXXX";
6265         char name[2][80];
6266         int n;
6267         int result = 0;
6268         int fd;
6269         struct stat sb;
6270
6271         umask(077);
6272         for (n = 0; n < 2; ++n) {
6273                 strcpy(name[n], tmpl);
6274                 if ((fd = mkstemp(name[n])) >= 0) {
6275                         if (!strcmp(name[n], tmpl)
6276                          || stat(name[n], &sb) != 0
6277                          || (sb.st_mode & S_IFMT) != S_IFREG
6278                          || (sb.st_mode & 077) != 0) {
6279                                 result = 1;
6280                         }
6281                         close(fd);
6282                 }
6283         }
6284         if (result == 0
6285          && !strcmp(name[0], name[1]))
6286                 result = 1;
6287         ${cf_cv_main_return:-return}(result);
6288 }
6289 ],[cf_cv_func_mkstemp=yes
6290 ],[cf_cv_func_mkstemp=no
6291 ],[cf_cv_func_mkstemp=maybe])
6292 ])
6293 if test "x$cf_cv_func_mkstemp" = xmaybe ; then
6294         AC_CHECK_FUNC(mkstemp)
6295 fi
6296 if test "x$cf_cv_func_mkstemp" = xyes || test "x$ac_cv_func_mkstemp" = xyes ; then
6297         AC_DEFINE(HAVE_MKSTEMP,1,[Define to 1 if mkstemp() is available and working.])
6298 fi
6299 ])dnl
6300 dnl ---------------------------------------------------------------------------
6301 dnl CF_MSG_LOG version: 5 updated: 2010/10/23 15:52:32
6302 dnl ----------
6303 dnl Write a debug message to config.log, along with the line number in the
6304 dnl configure script.
6305 AC_DEFUN([CF_MSG_LOG],[
6306 echo "${as_me:-configure}:__oline__: testing $* ..." 1>&AC_FD_CC
6307 ])dnl
6308 dnl ---------------------------------------------------------------------------
6309 dnl CF_NCURSES_ABI_6 version: 5 updated: 2023/01/07 16:32:06
6310 dnl ----------------
6311 dnl Set ncurses' ABI to 6 unless overridden by explicit configure option, and
6312 dnl warn about this.
6313 AC_DEFUN([CF_NCURSES_ABI_6],[
6314 if test "${with_abi_version+set}" != set; then
6315         case "$cf_cv_rel_version" in
6316         (5.*)
6317                 cf_cv_rel_version=6.0
6318                 cf_cv_abi_version=6
6319                 cf_cv_abi_default=6
6320                 AC_MSG_WARN(overriding ABI version to $cf_cv_abi_default)
6321                 ;;
6322         esac
6323 fi
6324 ])dnl
6325 dnl ---------------------------------------------------------------------------
6326 dnl CF_NCURSES_WITH_ABI_VERSION version: 3 updated: 2021/01/01 13:31:04
6327 dnl ---------------------------
6328 dnl Allow ncurses's ABI to be overridden.  Generally this happens when a
6329 dnl packager has incremented the ABI past that used in the original package,
6330 dnl and wishes to keep doing this.
6331 dnl
6332 dnl $1 is the package name, if any, to derive a corresponding {package}_ABI
6333 dnl symbol.
6334 AC_DEFUN([CF_NCURSES_WITH_ABI_VERSION],[
6335 CF_WITH_ABI_VERSION($1)
6336 if test "x$cf_cv_abi_version" != "x$with_abi_version"
6337 then
6338         case "$cf_cv_rel_version" in
6339         (5.*)
6340                 cf_cv_rel_version=$with_abi_version.0
6341                 ;;
6342         esac
6343 fi
6344 ])dnl
6345 dnl ---------------------------------------------------------------------------
6346 dnl CF_NO_LEAKS_OPTION version: 9 updated: 2021/06/13 19:45:41
6347 dnl ------------------
6348 dnl see CF_WITH_NO_LEAKS
6349 dnl
6350 dnl $1 = option/name
6351 dnl $2 = help-text
6352 dnl $3 = symbol to define if the option is set
6353 dnl $4 = additional actions to take if the option is set
6354 AC_DEFUN([CF_NO_LEAKS_OPTION],[
6355 AC_MSG_CHECKING(if you want to use $1 for testing)
6356 AC_ARG_WITH($1,
6357         [$2],
6358         [case "x$withval" in
6359         (x|xno) ;;
6360         (*)
6361                 : "${with_cflags:=-g}"
6362                 : "${enable_leaks:=no}"
6363                 with_$1=yes
6364                 AC_DEFINE_UNQUOTED($3,1,"Define to 1 if you want to use $1 for testing.")ifelse([$4],,[
6365          $4
6366 ])
6367                 ;;
6368         esac],
6369         [with_$1=])
6370 AC_MSG_RESULT(${with_$1:-no})
6371
6372 case ".$with_cflags" in
6373 (.*-g*)
6374         case .$CFLAGS in
6375         (.*-g*)
6376                 ;;
6377         (*)
6378                 CF_ADD_CFLAGS([-g])
6379                 ;;
6380         esac
6381         ;;
6382 esac
6383 ])dnl
6384 dnl ---------------------------------------------------------------------------
6385 dnl CF_NUMBER_SYNTAX version: 2 updated: 2015/04/17 21:13:04
6386 dnl ----------------
6387 dnl Check if the given variable is a number.  If not, report an error.
6388 dnl $1 is the variable
6389 dnl $2 is the message
6390 AC_DEFUN([CF_NUMBER_SYNTAX],[
6391 if test -n "$1" ; then
6392   case $1 in
6393   ([[0-9]]*)
6394         ;;
6395   (*)
6396         AC_MSG_ERROR($2 is not a number: $1)
6397         ;;
6398   esac
6399 else
6400   AC_MSG_ERROR($2 value is empty)
6401 fi
6402 ])dnl
6403 dnl ---------------------------------------------------------------------------
6404 dnl CF_OBJ_SUBDIR version: 8 updated: 2021/01/01 13:31:04
6405 dnl -------------
6406 dnl Compute the object-directory name from the given model name
6407 AC_DEFUN([CF_OBJ_SUBDIR],
6408 [
6409         case $1 in
6410         (libtool) $2='obj_lo'  ;;
6411         (normal)  $2='objects' ;;
6412         (debug)   $2='obj_g' ;;
6413         (profile) $2='obj_p' ;;
6414         (shared)
6415                 case "$cf_cv_system_name" in
6416                 (cygwin|msys)
6417                         $2='objects' ;;
6418                 (*)
6419                         $2='obj_s' ;;
6420                 esac
6421         esac
6422 ])dnl
6423 dnl ---------------------------------------------------------------------------
6424 dnl CF_OUTPUT_MANPAGE_RENAMES version: 2 updated: 2022/10/22 19:12:31
6425 dnl -------------------------
6426 dnl This runs in the output step to config.status, after man_db.renames has
6427 dnl been generated.
6428 AC_DEFUN([CF_OUTPUT_MANPAGE_RENAMES],
6429 [
6430 AC_REQUIRE([CF_MANPAGE_RENAMES])
6431 if test "$MANPAGE_RENAMES" != no ; then
6432         # Construct a sed-script to perform renaming within man-pages
6433         test -n "$verbose" && echo "creating edit_man.sed"
6434         test ! -d man && mkdir man
6435         FGREP="${FGREP-grep -F}" $SHELL "$srcdir/man/make_sed.sh" "$MANPAGE_RENAMES" >./edit_man.sed
6436 fi
6437 ])dnl
6438 dnl ---------------------------------------------------------------------------
6439 dnl CF_PATHSEP version: 8 updated: 2021/01/01 13:31:04
6440 dnl ----------
6441 dnl Provide a value for the $PATH and similar separator (or amend the value
6442 dnl as provided in autoconf 2.5x).
6443 AC_DEFUN([CF_PATHSEP],
6444 [
6445         AC_MSG_CHECKING(for PATH separator)
6446         case "$cf_cv_system_name" in
6447         (os2*)  PATH_SEPARATOR=';'  ;;
6448         (*)     ${PATH_SEPARATOR:=':'}  ;;
6449         esac
6450 ifelse([$1],,,[$1=$PATH_SEPARATOR])
6451         AC_SUBST(PATH_SEPARATOR)
6452         AC_MSG_RESULT($PATH_SEPARATOR)
6453 ])dnl
6454 dnl ---------------------------------------------------------------------------
6455 dnl CF_PATH_PROG version: 12 updated: 2021/01/02 09:31:20
6456 dnl ------------
6457 dnl Check for a given program, defining corresponding symbol.
6458 dnl     $1 = environment variable, which is suffixed by "_PATH" in the #define.
6459 dnl     $2 = program name to find.
6460 dnl     $3 = optional list of additional program names to test.
6461 dnl $4 = $PATH
6462 dnl
6463 dnl If there is more than one token in the result, #define the remaining tokens
6464 dnl to $1_ARGS.  We need this for 'install' in particular.
6465 dnl
6466 dnl FIXME: we should allow this to be overridden by environment variables
6467 dnl
6468 AC_DEFUN([CF_PATH_PROG],[
6469 AC_REQUIRE([CF_PATHSEP])
6470 test -z "[$]$1" && $1="$2"
6471 AC_PATH_PROGS($1,[$]$1 $2 ifelse($3,,,$3),[$]$1, ifelse($4,,,$4))
6472
6473 cf_path_prog=""
6474 cf_path_args=""
6475 IFS="${IFS:-    }"; cf_save_ifs="$IFS"; IFS="${IFS}$PATH_SEPARATOR"
6476 for cf_temp in $ac_cv_path_$1
6477 do
6478         if test -z "$cf_path_prog" ; then
6479                 if test "$with_full_paths" = yes ; then
6480                         CF_PATH_SYNTAX(cf_temp,break)
6481                         cf_path_prog="$cf_temp"
6482                 else
6483                         cf_path_prog="`basename "$cf_temp"`"
6484                 fi
6485         elif test -z "$cf_path_args" ; then
6486                 cf_path_args="$cf_temp"
6487         else
6488                 cf_path_args="$cf_path_args $cf_temp"
6489         fi
6490 done
6491 IFS="$cf_save_ifs"
6492
6493 if test -n "$cf_path_prog" ; then
6494         CF_MSG_LOG(defining path for ${cf_path_prog})
6495         AC_DEFINE_UNQUOTED($1_PATH,"$cf_path_prog",Define to pathname $1)
6496         test -n "$cf_path_args" && AC_DEFINE_UNQUOTED($1_ARGS,"$cf_path_args",Define to provide args for $1)
6497 fi
6498 ])dnl
6499 dnl ---------------------------------------------------------------------------
6500 dnl CF_PATH_SYNTAX version: 18 updated: 2020/12/31 18:40:20
6501 dnl --------------
6502 dnl Check the argument to see that it looks like a pathname.  Rewrite it if it
6503 dnl begins with one of the prefix/exec_prefix variables, and then again if the
6504 dnl result begins with 'NONE'.  This is necessary to work around autoconf's
6505 dnl delayed evaluation of those symbols.
6506 AC_DEFUN([CF_PATH_SYNTAX],[
6507 if test "x$prefix" != xNONE; then
6508         cf_path_syntax="$prefix"
6509 else
6510         cf_path_syntax="$ac_default_prefix"
6511 fi
6512
6513 case ".[$]$1" in
6514 (.\[$]\(*\)*|.\'*\'*)
6515         ;;
6516 (..|./*|.\\*)
6517         ;;
6518 (.[[a-zA-Z]]:[[\\/]]*) # OS/2 EMX
6519         ;;
6520 (.\[$]\{*prefix\}*|.\[$]\{*dir\}*)
6521         eval $1="[$]$1"
6522         case ".[$]$1" in
6523         (.NONE/*)
6524                 $1=`echo "[$]$1" | sed -e s%NONE%$cf_path_syntax%`
6525                 ;;
6526         esac
6527         ;;
6528 (.no|.NONE/*)
6529         $1=`echo "[$]$1" | sed -e s%NONE%$cf_path_syntax%`
6530         ;;
6531 (*)
6532         ifelse([$2],,[AC_MSG_ERROR([expected a pathname, not \"[$]$1\"])],$2)
6533         ;;
6534 esac
6535 ])dnl
6536 dnl ---------------------------------------------------------------------------
6537 dnl CF_PKG_CONFIG version: 12 updated: 2021/10/10 20:18:09
6538 dnl -------------
6539 dnl Check for the package-config program, unless disabled by command-line.
6540 dnl
6541 dnl Sets $PKG_CONFIG to the pathname of the pkg-config program.
6542 AC_DEFUN([CF_PKG_CONFIG],
6543 [
6544 AC_MSG_CHECKING(if you want to use pkg-config)
6545 AC_ARG_WITH(pkg-config,
6546         [  --with-pkg-config{=path} enable/disable use of pkg-config],
6547         [cf_pkg_config=$withval],
6548         [cf_pkg_config=yes])
6549 AC_MSG_RESULT($cf_pkg_config)
6550
6551 case "$cf_pkg_config" in
6552 (no)
6553         PKG_CONFIG=none
6554         ;;
6555 (yes)
6556         CF_ACVERSION_CHECK(2.52,
6557                 [AC_PATH_TOOL(PKG_CONFIG, pkg-config, none)],
6558                 [AC_PATH_PROG(PKG_CONFIG, pkg-config, none)])
6559         ;;
6560 (*)
6561         PKG_CONFIG=$withval
6562         ;;
6563 esac
6564
6565 test -z "$PKG_CONFIG" && PKG_CONFIG=none
6566 if test "$PKG_CONFIG" != none ; then
6567         CF_PATH_SYNTAX(PKG_CONFIG)
6568 elif test "x$cf_pkg_config" != xno ; then
6569         AC_MSG_WARN(pkg-config is not installed)
6570 fi
6571
6572 AC_SUBST(PKG_CONFIG)
6573 ])dnl
6574 dnl ---------------------------------------------------------------------------
6575 dnl CF_POSIX_C_SOURCE version: 12 updated: 2023/02/18 17:41:25
6576 dnl -----------------
6577 dnl Define _POSIX_C_SOURCE to the given level, and _POSIX_SOURCE if needed.
6578 dnl
6579 dnl     POSIX.1-1990                            _POSIX_SOURCE
6580 dnl     POSIX.1-1990 and                        _POSIX_SOURCE and
6581 dnl             POSIX.2-1992 C-Language                 _POSIX_C_SOURCE=2
6582 dnl             Bindings Option
6583 dnl     POSIX.1b-1993                           _POSIX_C_SOURCE=199309L
6584 dnl     POSIX.1c-1996                           _POSIX_C_SOURCE=199506L
6585 dnl     X/Open 2000                             _POSIX_C_SOURCE=200112L
6586 dnl
6587 dnl Parameters:
6588 dnl     $1 is the nominal value for _POSIX_C_SOURCE
6589 AC_DEFUN([CF_POSIX_C_SOURCE],
6590 [AC_REQUIRE([CF_POSIX_VISIBLE])dnl
6591
6592 if test "$cf_cv_posix_visible" = no; then
6593
6594 cf_POSIX_C_SOURCE=ifelse([$1],,199506L,[$1])
6595
6596 cf_save_CFLAGS="$CFLAGS"
6597 cf_save_CPPFLAGS="$CPPFLAGS"
6598
6599 CF_REMOVE_DEFINE(cf_trim_CFLAGS,$cf_save_CFLAGS,_POSIX_C_SOURCE)
6600 CF_REMOVE_DEFINE(cf_trim_CPPFLAGS,$cf_save_CPPFLAGS,_POSIX_C_SOURCE)
6601
6602 AC_CACHE_CHECK(if we should define _POSIX_C_SOURCE,cf_cv_posix_c_source,[
6603         CF_MSG_LOG(if the symbol is already defined go no further)
6604         AC_TRY_COMPILE([#include <sys/types.h>],[
6605 #ifndef _POSIX_C_SOURCE
6606 #error _POSIX_C_SOURCE is not defined
6607 #endif],
6608         [cf_cv_posix_c_source=no],
6609         [cf_want_posix_source=no
6610          case .$cf_POSIX_C_SOURCE in
6611          (.[[12]]??*)
6612                 cf_cv_posix_c_source="-D_POSIX_C_SOURCE=$cf_POSIX_C_SOURCE"
6613                 ;;
6614          (.2)
6615                 cf_cv_posix_c_source="-D_POSIX_C_SOURCE=$cf_POSIX_C_SOURCE"
6616                 cf_want_posix_source=yes
6617                 ;;
6618          (.*)
6619                 cf_want_posix_source=yes
6620                 ;;
6621          esac
6622          if test "$cf_want_posix_source" = yes ; then
6623                 AC_TRY_COMPILE([#include <sys/types.h>],[
6624 #ifdef _POSIX_SOURCE
6625 #error _POSIX_SOURCE is defined
6626 #endif],[],
6627                 cf_cv_posix_c_source="$cf_cv_posix_c_source -D_POSIX_SOURCE")
6628          fi
6629          CF_MSG_LOG(ifdef from value $cf_POSIX_C_SOURCE)
6630          CFLAGS="$cf_trim_CFLAGS"
6631          CPPFLAGS="$cf_trim_CPPFLAGS"
6632          CF_APPEND_TEXT(CPPFLAGS,$cf_cv_posix_c_source)
6633          CF_MSG_LOG(if the second compile does not leave our definition intact error)
6634          AC_TRY_COMPILE([#include <sys/types.h>],[
6635 #ifndef _POSIX_C_SOURCE
6636 #error _POSIX_C_SOURCE is not defined
6637 #endif],,
6638          [cf_cv_posix_c_source=no])
6639          CFLAGS="$cf_save_CFLAGS"
6640          CPPFLAGS="$cf_save_CPPFLAGS"
6641         ])
6642 ])
6643
6644 if test "$cf_cv_posix_c_source" != no ; then
6645         CFLAGS="$cf_trim_CFLAGS"
6646         CPPFLAGS="$cf_trim_CPPFLAGS"
6647         CF_ADD_CFLAGS($cf_cv_posix_c_source)
6648 fi
6649
6650 fi # cf_cv_posix_visible
6651
6652 ])dnl
6653 dnl ---------------------------------------------------------------------------
6654 dnl CF_POSIX_VISIBLE version: 1 updated: 2018/12/31 20:46:17
6655 dnl ----------------
6656 dnl POSIX documents test-macros which an application may set before any system
6657 dnl headers are included to make features available.
6658 dnl
6659 dnl Some BSD platforms (originally FreeBSD, but copied by a few others)
6660 dnl diverged from POSIX in 2002 by setting symbols which make all of the most
6661 dnl recent features visible in the system header files unless the application
6662 dnl overrides the corresponding test-macros.  Doing that introduces portability
6663 dnl problems.
6664 dnl
6665 dnl This macro makes a special check for the symbols used for this, to avoid a
6666 dnl conflicting definition.
6667 AC_DEFUN([CF_POSIX_VISIBLE],
6668 [
6669 AC_CACHE_CHECK(if the POSIX test-macros are already defined,cf_cv_posix_visible,[
6670 AC_TRY_COMPILE([#include <stdio.h>],[
6671 #if defined(__POSIX_VISIBLE) && ((__POSIX_VISIBLE - 0L) > 0) \
6672         && defined(__XSI_VISIBLE) && ((__XSI_VISIBLE - 0L) > 0) \
6673         && defined(__BSD_VISIBLE) && ((__BSD_VISIBLE - 0L) > 0) \
6674         && defined(__ISO_C_VISIBLE) && ((__ISO_C_VISIBLE - 0L) > 0)
6675 #error conflicting symbols found
6676 #endif
6677 ],[cf_cv_posix_visible=no],[cf_cv_posix_visible=yes])
6678 ])
6679 ])dnl
6680 dnl ---------------------------------------------------------------------------
6681 dnl CF_PREDEFINE version: 3 updated: 2023/02/18 17:41:25
6682 dnl ------------
6683 dnl Add definitions to CPPFLAGS to ensure they're predefined for all compiles.
6684 dnl
6685 dnl $1 = symbol to test
6686 dnl $2 = value (if any) to use for a predefinition
6687 AC_DEFUN([CF_PREDEFINE],
6688 [
6689 AC_MSG_CHECKING(if we must define $1)
6690 AC_TRY_COMPILE([#include <sys/types.h>
6691 ],[
6692 #ifndef $1
6693 #error $1 is not defined
6694 #endif],[cf_result=no],[cf_result=yes])
6695 AC_MSG_RESULT($cf_result)
6696
6697 if test "$cf_result" = yes ; then
6698         CPPFLAGS="$CPPFLAGS ifelse([$2],,-D$1,[-D$1=$2])"
6699 elif test "x$2" != "x" ; then
6700         AC_MSG_CHECKING(checking for compatible value versus $2)
6701         AC_TRY_COMPILE([#include <sys/types.h>
6702 ],[
6703 #if $1-$2 < 0
6704 #error $1-$2 is negative
6705 #endif],[cf_result=yes],[cf_result=no])
6706         AC_MSG_RESULT($cf_result)
6707         if test "$cf_result" = no ; then
6708                 # perhaps we can override it - try...
6709                 CPPFLAGS="$CPPFLAGS -D$1=$2"
6710         fi
6711 fi
6712 ])dnl
6713 dnl ---------------------------------------------------------------------------
6714 dnl CF_PRG_RULES version: 2 updated: 2021/01/01 13:31:04
6715 dnl ------------
6716 dnl Append definitions and rules for the given programs to the subdirectory
6717 dnl Makefiles, and the recursion rule for the top-level Makefile.
6718 dnl
6719 dnl parameters
6720 dnl     $1 = script to run
6721 dnl     $2 = list of subdirectories
6722 dnl
6723 dnl variables
6724 dnl     $AWK
6725 AC_DEFUN([CF_PRG_RULES],
6726 [
6727 for cf_dir in $2
6728 do
6729         if test ! -d "$srcdir/$cf_dir" ; then
6730                 continue
6731         elif test -f "$srcdir/$cf_dir/programs" ; then
6732                 $AWK -f $1 "$srcdir/$cf_dir/programs" >>$cf_dir/Makefile
6733         fi
6734 done
6735
6736 ])dnl
6737 dnl ---------------------------------------------------------------------------
6738 dnl CF_PROG_AR version: 1 updated: 2009/01/01 20:15:22
6739 dnl ----------
6740 dnl Check for archiver "ar".
6741 AC_DEFUN([CF_PROG_AR],[
6742 AC_CHECK_TOOL(AR, ar, ar)
6743 ])
6744 dnl ---------------------------------------------------------------------------
6745 dnl CF_PROG_AWK version: 1 updated: 2006/09/16 11:40:59
6746 dnl -----------
6747 dnl Check for awk, ensure that the check found something.
6748 AC_DEFUN([CF_PROG_AWK],
6749 [
6750 AC_PROG_AWK
6751 test -z "$AWK" && AC_MSG_ERROR(No awk program found)
6752 ])dnl
6753 dnl ---------------------------------------------------------------------------
6754 dnl CF_PROG_CC version: 5 updated: 2019/12/31 08:53:54
6755 dnl ----------
6756 dnl standard check for CC, plus followup sanity checks
6757 dnl $1 = optional parameter to pass to AC_PROG_CC to specify compiler name
6758 AC_DEFUN([CF_PROG_CC],[
6759 CF_ACVERSION_CHECK(2.53,
6760         [AC_MSG_WARN(this will incorrectly handle gnatgcc choice)
6761          AC_REQUIRE([AC_PROG_CC])],
6762         [])
6763 ifelse($1,,[AC_PROG_CC],[AC_PROG_CC($1)])
6764 CF_GCC_VERSION
6765 CF_ACVERSION_CHECK(2.52,
6766         [AC_PROG_CC_STDC],
6767         [CF_ANSI_CC_REQD])
6768 CF_CC_ENV_FLAGS
6769 ])dnl
6770 dnl ---------------------------------------------------------------------------
6771 dnl CF_PROG_CC_C_O version: 6 updated: 2021/01/01 13:31:04
6772 dnl --------------
6773 dnl Analogous to AC_PROG_CC_C_O, but more useful: tests only $CC, ensures that
6774 dnl the output file can be renamed, and allows for a shell variable that can
6775 dnl be used later.  The parameter is either CC or CXX.  The result is the
6776 dnl cache variable:
6777 dnl     $cf_cv_prog_CC_c_o
6778 dnl     $cf_cv_prog_CXX_c_o
6779 dnl
6780 dnl $1 = compiler
6781 dnl $2 = compiler options, if any
6782 AC_DEFUN([CF_PROG_CC_C_O],
6783 [AC_REQUIRE([AC_PROG_CC])dnl
6784 AC_MSG_CHECKING([whether [$]$1 understands -c and -o together])
6785 AC_CACHE_VAL(cf_cv_prog_$1_c_o,
6786 [
6787 cat > conftest.$ac_ext <<CF_EOF
6788 int main(void)
6789 {
6790         ${cf_cv_main_return:-return}(0);
6791 }
6792 CF_EOF
6793 # We do the test twice because some compilers refuse to overwrite an
6794 # existing .o file with -o, though they will create one.
6795 ac_try='[$]$1 $2 -c conftest.$ac_ext -o conftest2.$ac_objext >&AC_FD_CC'
6796 if AC_TRY_EVAL(ac_try) &&
6797   test -f conftest2.$ac_objext && AC_TRY_EVAL(ac_try);
6798 then
6799   eval cf_cv_prog_$1_c_o=yes
6800 else
6801   eval cf_cv_prog_$1_c_o=no
6802 fi
6803 rm -rf ./conftest*
6804 ])dnl
6805 if test "$cf_cv_prog_$1_c_o" = yes; then
6806   AC_MSG_RESULT([yes])
6807 else
6808   AC_MSG_RESULT([no])
6809 fi
6810 ])dnl
6811 dnl ---------------------------------------------------------------------------
6812 dnl CF_PROG_GNAT version: 12 updated: 2021/01/02 17:09:14
6813 dnl ------------
6814 dnl Check for gnat/gnatmake/etc, ensure that the toolset is complete.
6815 AC_DEFUN([CF_PROG_GNAT],[
6816 for cf_prog_gnat in gnat gnatmake gprconfig gprbuild
6817 do
6818         CF_UPPER(cf_upper_prog_gnat,${cf_prog_gnat})
6819
6820         unset ac_cv_path_cf_TEMP_gnat
6821         unset cf_TEMP_gnat
6822         AC_PATH_PROG(cf_TEMP_gnat,$cf_prog_gnat,no)
6823         eval "cf_cv_PATH_$cf_upper_prog_gnat=[$]ac_cv_path_cf_TEMP_gnat"
6824
6825         if test "x$cf_TEMP_gnat" != xno; then
6826                 unset cf_cv_gnat_version
6827                 unset cf_TEMP_gnat
6828                 CF_GNAT_VERSION(cf_TEMP_gnat,$cf_prog_gnat)
6829         fi
6830         eval "cf_cv_VERSION_$cf_upper_prog_gnat=[$]cf_TEMP_gnat"
6831
6832         unset cf_TEMP_gnat
6833         unset cf_cv_gnat_version
6834         unset ac_cv_path_cf_TEMP_gnat
6835 done
6836
6837 if test "x$cf_cv_VERSION_GNATMAKE" = "xno"; then
6838         cf_ada_make=
6839         cf_cv_prog_gnat_correct=no
6840 else
6841         cf_ada_make=gnatmake
6842         if test "x$cf_cv_VERSION_GPRCONFIG" = "xno"; then
6843                 # gprconfig is newer than gnatmake; we can continue...
6844                 cf_ada_config="##"
6845         else
6846                 rm -rf ./conftest* ./*~conftest*
6847                 if mkdir conftest.src
6848                 then
6849                         cf_ada_config=""
6850                         cd conftest.src
6851                         for cf_gprconfig in Ada C
6852                         do
6853                                 AC_MSG_CHECKING(for gprconfig name for $cf_gprconfig)
6854                                 if test "$cf_gprconfig" = C
6855                                 then
6856                                         for cf_gprconfig_param in \
6857                                                 "$cf_gprconfig,,,,GNATGCC" \
6858                                                 "$cf_gprconfig,,,,GCC" \
6859                                                 "$cf_gprconfig"
6860                                         do
6861                                                 cf_gprconfig_value=`echo s| gprconfig --config=$cf_gprconfig_param 2>&AC_FD_CC | ${AWK:-awk} '/^\*/{print [$]3;}' | head -n 1`
6862                                                 test -n "$cf_gprconfig_value" && break
6863                                         done
6864                                 else
6865                                         cf_gprconfig_param=$cf_gprconfig
6866                                         cf_gprconfig_value=`echo s| gprconfig --config=$cf_gprconfig_param 2>&AC_FD_CC | ${AWK:-awk} '/^\*/{print [$]3;}' | head -n 1`
6867                                 fi
6868                                 if test -n "$cf_gprconfig_value"
6869                                 then
6870                                         eval "cf_ada_config_[$]cf_gprconfig=[$]cf_gprconfig_value"
6871                                         AC_MSG_RESULT($cf_gprconfig_value)
6872                                 else
6873                                         AC_MSG_RESULT(missing)
6874                                         cf_ada_config="#"
6875                                         break
6876                                 fi
6877                         done
6878                         cd ..
6879                         rm -rf ./conftest* ./*~conftest*
6880                 fi
6881         fi
6882         if test "x$cf_ada_config" != "x#"
6883         then
6884                 CF_GNAT_VERSION
6885                 CF_CHECK_GNAT_VERSION
6886                 AC_CHECK_PROG(M4_exists, m4, yes, no)
6887                 if test "$ac_cv_prog_M4_exists" = no; then
6888                         cf_cv_prog_gnat_correct=no
6889                         AC_MSG_WARN(Ada95 binding required program m4 not found. Ada95 binding disabled)
6890                 fi
6891                 if test "$cf_cv_prog_gnat_correct" = yes; then
6892                         AC_MSG_CHECKING(if GNAT works)
6893                         CF_GNAT_TRY_RUN([procedure conftest;],
6894 [with Text_IO;
6895 with GNAT.OS_Lib;
6896 procedure conftest is
6897 begin
6898    Text_IO.Put ("Hello World");
6899    Text_IO.New_Line;
6900    GNAT.OS_Lib.OS_Exit (0);
6901 end conftest;],
6902 [cf_cv_prog_gnat_correct=yes],
6903 [cf_cv_prog_gnat_correct=no])
6904                         AC_MSG_RESULT($cf_cv_prog_gnat_correct)
6905                 fi
6906         else
6907                 cf_cv_prog_gnat_correct=no
6908         fi
6909 fi
6910
6911 AC_SUBST(cf_ada_make)
6912 AC_SUBST(cf_ada_config)
6913 AC_SUBST(cf_ada_config_Ada)
6914 AC_SUBST(cf_ada_config_C)
6915 ])dnl
6916 dnl ---------------------------------------------------------------------------
6917 dnl CF_PROG_INSTALL version: 10 updated: 2021/01/04 19:33:05
6918 dnl ---------------
6919 dnl Force $INSTALL to be an absolute-path.  Otherwise, edit_man.sh and the
6920 dnl misc/tabset install won't work properly.  Usually this happens only when
6921 dnl using the fallback mkinstalldirs script
6922 AC_DEFUN([CF_PROG_INSTALL],
6923 [AC_PROG_INSTALL
6924 case $INSTALL in
6925 (/*)
6926         ;;
6927 (*)
6928         CF_DIRNAME(cf_dir,$INSTALL)
6929         test -z "$cf_dir" && cf_dir=.
6930         INSTALL="`cd \"$cf_dir\" && pwd`"/"`echo "$INSTALL" | sed -e 's%^.*/%%'`"
6931         ;;
6932 esac
6933 ])dnl
6934 dnl ---------------------------------------------------------------------------
6935 dnl CF_PROG_LDCONFIG version: 5 updated: 2015/04/18 08:56:57
6936 dnl ----------------
6937 dnl Check for ldconfig, needed to fixup shared libraries that would be built
6938 dnl and then used in the install.
6939 AC_DEFUN([CF_PROG_LDCONFIG],[
6940 if test "$cross_compiling" = yes ; then
6941         LDCONFIG=:
6942 else
6943         case "$cf_cv_system_name" in
6944         (dragonfly*|mirbsd*|freebsd*)
6945                 test -z "$LDCONFIG" && LDCONFIG="/sbin/ldconfig -R"
6946                 ;;
6947         (*) LDPATH=$PATH:/sbin:/usr/sbin
6948                 AC_PATH_PROG(LDCONFIG,ldconfig,,$LDPATH)
6949                 ;;
6950         esac
6951 fi
6952 AC_SUBST(LDCONFIG)
6953 ])dnl
6954 dnl ---------------------------------------------------------------------------
6955 dnl CF_PROG_LINT version: 5 updated: 2022/08/20 15:44:13
6956 dnl ------------
6957 AC_DEFUN([CF_PROG_LINT],
6958 [
6959 AC_CHECK_PROGS(LINT, lint cppcheck splint)
6960 case "x$LINT" in
6961 (xcppcheck|x*/cppcheck)
6962         test -z "$LINT_OPTS" && LINT_OPTS="--enable=all"
6963         ;;
6964 esac
6965 AC_SUBST(LINT_OPTS)
6966 AC_SUBST(LINT_LIBS)
6967 ])dnl
6968 dnl ---------------------------------------------------------------------------
6969 dnl CF_PROG_LN_S version: 2 updated: 2010/08/14 18:25:37
6970 dnl ------------
6971 dnl Combine checks for "ln -s" and "ln -sf", updating $LN_S to include "-f"
6972 dnl option if it is supported.
6973 AC_DEFUN([CF_PROG_LN_S],[
6974 AC_PROG_LN_S
6975 AC_MSG_CHECKING(if $LN_S -f options work)
6976
6977 rm -f conf$$.src conf$$dst
6978 echo >conf$$.dst
6979 echo first >conf$$.src
6980 if $LN_S -f conf$$.src conf$$.dst 2>/dev/null; then
6981         cf_prog_ln_sf=yes
6982 else
6983         cf_prog_ln_sf=no
6984 fi
6985 rm -f conf$$.dst conf$$src
6986 AC_MSG_RESULT($cf_prog_ln_sf)
6987
6988 test "$cf_prog_ln_sf" = yes && LN_S="$LN_S -f"
6989 ])dnl
6990 dnl ---------------------------------------------------------------------------
6991 dnl CF_REGEX version: 18 updated: 2021/01/01 16:53:59
6992 dnl --------
6993 dnl Attempt to determine if we've got one of the flavors of regular-expression
6994 dnl code that we can support.
6995 AC_DEFUN([CF_REGEX],
6996 [
6997
6998 cf_regex_func=no
6999 cf_regex_libs=
7000 case "$host_os" in
7001 (mingw*)
7002         # -lsystre -ltre -lintl -liconv
7003         AC_CHECK_LIB(systre,regcomp,[
7004                 AC_CHECK_LIB(iconv,libiconv_open,[CF_ADD_LIB(iconv)])
7005                 AC_CHECK_LIB(intl,libintl_gettext,[CF_ADD_LIB(intl)])
7006                 AC_CHECK_LIB(tre,tre_regcomp,[CF_ADD_LIB(tre)])
7007                 CF_ADD_LIB(systre)
7008                 cf_regex_func=regcomp
7009         ],[
7010                 AC_CHECK_LIB(gnurx,regcomp,[
7011                         CF_ADD_LIB(gnurx)
7012                         cf_regex_func=regcomp])
7013         ])
7014         ;;
7015 (*)
7016         cf_regex_libs="regex re"
7017         AC_CHECK_FUNC(regcomp,[cf_regex_func=regcomp],[
7018                 for cf_regex_lib in $cf_regex_libs
7019                 do
7020                         AC_CHECK_LIB($cf_regex_lib,regcomp,[
7021                                         CF_ADD_LIB($cf_regex_lib)
7022                                         cf_regex_func=regcomp
7023                                         break])
7024                 done
7025         ])
7026         ;;
7027 esac
7028
7029 if test "$cf_regex_func" = no ; then
7030         AC_CHECK_FUNC(compile,[cf_regex_func=compile],[
7031                 AC_CHECK_LIB(gen,compile,[
7032                                 CF_ADD_LIB(gen)
7033                                 cf_regex_func=compile])])
7034 fi
7035
7036 if test "$cf_regex_func" = no ; then
7037         AC_MSG_WARN(cannot find regular expression library)
7038 fi
7039
7040 AC_CACHE_CHECK(for regular-expression headers,cf_cv_regex_hdrs,[
7041
7042 cf_cv_regex_hdrs=no
7043 case "$cf_regex_func" in
7044 (compile)
7045         for cf_regex_hdr in regexp.h regexpr.h
7046         do
7047                 AC_TRY_LINK([#include <$cf_regex_hdr>],[
7048                         char *p = compile("", "", "", 0);
7049                         int x = step("", "");
7050                         (void)p;
7051                         (void)x;
7052                 ],[
7053                         cf_cv_regex_hdrs=$cf_regex_hdr
7054                         break
7055                 ])
7056         done
7057         ;;
7058 (*)
7059         for cf_regex_hdr in regex.h
7060         do
7061                 AC_TRY_LINK([#include <sys/types.h>
7062 #include <$cf_regex_hdr>],[
7063                         regex_t *p = 0;
7064                         int x = regcomp(p, "", 0);
7065                         int y = regexec(p, "", 0, 0, 0);
7066                         (void)x;
7067                         (void)y;
7068                         regfree(p);
7069                 ],[
7070                         cf_cv_regex_hdrs=$cf_regex_hdr
7071                         break
7072                 ])
7073         done
7074         ;;
7075 esac
7076
7077 ])
7078
7079 case "$cf_cv_regex_hdrs" in
7080         (no)            AC_MSG_WARN(no regular expression header found) ;;
7081         (regex.h)       AC_DEFINE(HAVE_REGEX_H_FUNCS,1,[Define to 1 to include regex.h for regular expressions]) ;;
7082         (regexp.h)      AC_DEFINE(HAVE_REGEXP_H_FUNCS,1,[Define to 1 to include regexp.h for regular expressions]) ;;
7083         (regexpr.h) AC_DEFINE(HAVE_REGEXPR_H_FUNCS,1,[Define to 1 to include regexpr.h for regular expressions]) ;;
7084 esac
7085 ])dnl
7086 dnl ---------------------------------------------------------------------------
7087 dnl CF_REMOVE_CFLAGS version: 3 updated: 2021/09/05 17:25:40
7088 dnl ----------------
7089 dnl Remove a given option from CFLAGS/CPPFLAGS
7090 dnl $1 = option to remove
7091 dnl $2 = variable to update
7092 dnl $3 = nonempty to allow verbose message
7093 define([CF_REMOVE_CFLAGS],
7094 [
7095 cf_tmp_cflag=`echo "x$1" | sed -e 's/^.//' -e 's/=.*//'`
7096 while true
7097 do
7098         cf_old_cflag=`echo "x[$]$2" | sed -e 's/^.//' -e 's/[[  ]][[    ]]*-/ -/g' -e "s%$cf_tmp_cflag\\(=[[^   ]][[^   ]]*\\)\?%%" -e 's/^[[   ]]*//' -e 's%[[ ]][[ ]]*-D% -D%g' -e 's%[[ ]][[ ]]*-I% -I%g'`
7099         test "[$]$2" != "$cf_old_cflag" || break
7100         ifelse([$3],,,[CF_VERBOSE(removing old option $1 from $2)])
7101         $2="$cf_old_cflag"
7102 done
7103 ])dnl
7104 dnl ---------------------------------------------------------------------------
7105 dnl CF_REMOVE_DEFINE version: 3 updated: 2010/01/09 11:05:50
7106 dnl ----------------
7107 dnl Remove all -U and -D options that refer to the given symbol from a list
7108 dnl of C compiler options.  This works around the problem that not all
7109 dnl compilers process -U and -D options from left-to-right, so a -U option
7110 dnl cannot be used to cancel the effect of a preceding -D option.
7111 dnl
7112 dnl $1 = target (which could be the same as the source variable)
7113 dnl $2 = source (including '$')
7114 dnl $3 = symbol to remove
7115 define([CF_REMOVE_DEFINE],
7116 [
7117 $1=`echo "$2" | \
7118         sed     -e 's/-[[UD]]'"$3"'\(=[[^       ]]*\)\?[[       ]]/ /g' \
7119                 -e 's/-[[UD]]'"$3"'\(=[[^       ]]*\)\?[$]//g'`
7120 ])dnl
7121 dnl ---------------------------------------------------------------------------
7122 dnl CF_REMOVE_LIB version: 1 updated: 2007/02/17 14:11:52
7123 dnl -------------
7124 dnl Remove the given library from the symbol
7125 dnl
7126 dnl $1 = target (which could be the same as the source variable)
7127 dnl $2 = source (including '$')
7128 dnl $3 = library to remove
7129 define([CF_REMOVE_LIB],
7130 [
7131 # remove $3 library from $2
7132 $1=`echo "$2" | sed -e 's/-l$3[[        ]]//g' -e 's/-l$3[$]//'`
7133 ])dnl
7134 dnl ---------------------------------------------------------------------------
7135 dnl CF_RESTORE_XTRA_FLAGS version: 1 updated: 2020/01/11 16:47:45
7136 dnl ---------------------
7137 dnl Restore flags saved in CF_SAVE_XTRA_FLAGS
7138 dnl $1 = name of current macro
7139 define([CF_RESTORE_XTRA_FLAGS],
7140 [
7141 LIBS="$cf_save_LIBS_$1"
7142 CFLAGS="$cf_save_CFLAGS_$1"
7143 CPPFLAGS="$cf_save_CPPFLAGS_$1"
7144 ])dnl
7145 dnl ---------------------------------------------------------------------------
7146 dnl CF_RPATH_HACK version: 13 updated: 2021/01/03 18:30:50
7147 dnl -------------
7148 AC_DEFUN([CF_RPATH_HACK],
7149 [AC_REQUIRE([AC_PROG_FGREP])dnl
7150 AC_REQUIRE([CF_LD_RPATH_OPT])dnl
7151
7152 AC_MSG_CHECKING(for updated LDFLAGS)
7153 if test -n "$LD_RPATH_OPT" ; then
7154         AC_MSG_RESULT(maybe)
7155
7156         AC_CHECK_PROGS(cf_ldd_prog,ldd,no)
7157         cf_rpath_list="/usr/lib /lib"
7158         if test "$cf_ldd_prog" != no
7159         then
7160                 cf_rpath_oops=
7161
7162 AC_TRY_LINK([#include <stdio.h>],
7163                 [printf("Hello");],
7164                 [cf_rpath_oops=`"$cf_ldd_prog" "conftest$ac_exeext" | ${FGREP-fgrep} ' not found' | sed -e 's% =>.*$%%' |sort | uniq`
7165                  cf_rpath_list=`"$cf_ldd_prog" "conftest$ac_exeext" | ${FGREP-fgrep} / | sed -e 's%^.*[[        ]]/%/%' -e 's%/[[^/]][[^/]]*$%%' |sort | uniq`])
7166
7167                 # If we passed the link-test, but get a "not found" on a given library,
7168                 # this could be due to inept reconfiguration of gcc to make it only
7169                 # partly honor /usr/local/lib (or whatever).  Sometimes this behavior
7170                 # is intentional, e.g., installing gcc in /usr/bin and suppressing the
7171                 # /usr/local libraries.
7172                 if test -n "$cf_rpath_oops"
7173                 then
7174                         for cf_rpath_src in $cf_rpath_oops
7175                         do
7176                                 for cf_rpath_dir in \
7177                                         /usr/local \
7178                                         /usr/pkg \
7179                                         /opt/sfw
7180                                 do
7181                                         if test -f "$cf_rpath_dir/lib/$cf_rpath_src"
7182                                         then
7183                                                 CF_VERBOSE(...adding -L$cf_rpath_dir/lib to LDFLAGS for $cf_rpath_src)
7184                                                 LDFLAGS="$LDFLAGS -L$cf_rpath_dir/lib"
7185                                                 break
7186                                         fi
7187                                 done
7188                         done
7189                 fi
7190         fi
7191
7192         CF_VERBOSE(...checking EXTRA_LDFLAGS $EXTRA_LDFLAGS)
7193
7194         CF_RPATH_HACK_2(LDFLAGS)
7195         CF_RPATH_HACK_2(LIBS)
7196
7197         CF_VERBOSE(...checked EXTRA_LDFLAGS $EXTRA_LDFLAGS)
7198 else
7199         AC_MSG_RESULT(no)
7200 fi
7201 AC_SUBST(EXTRA_LDFLAGS)
7202 ])dnl
7203 dnl ---------------------------------------------------------------------------
7204 dnl CF_RPATH_HACK_2 version: 8 updated: 2021/01/01 13:31:04
7205 dnl ---------------
7206 dnl Do one set of substitutions for CF_RPATH_HACK, adding an rpath option to
7207 dnl EXTRA_LDFLAGS for each -L option found.
7208 dnl
7209 dnl $cf_rpath_list contains a list of directories to ignore.
7210 dnl
7211 dnl $1 = variable name to update.  The LDFLAGS variable should be the only one,
7212 dnl      but LIBS often has misplaced -L options.
7213 AC_DEFUN([CF_RPATH_HACK_2],
7214 [
7215 CF_VERBOSE(...checking $1 [$]$1)
7216
7217 cf_rpath_dst=
7218 for cf_rpath_src in [$]$1
7219 do
7220         case "$cf_rpath_src" in
7221         (-L*)
7222
7223                 # check if this refers to a directory which we will ignore
7224                 cf_rpath_skip=no
7225                 if test -n "$cf_rpath_list"
7226                 then
7227                         for cf_rpath_item in $cf_rpath_list
7228                         do
7229                                 if test "x$cf_rpath_src" = "x-L$cf_rpath_item"
7230                                 then
7231                                         cf_rpath_skip=yes
7232                                         break
7233                                 fi
7234                         done
7235                 fi
7236
7237                 if test "$cf_rpath_skip" = no
7238                 then
7239                         # transform the option
7240                         if test "$LD_RPATH_OPT" = "-R " ; then
7241                                 cf_rpath_tmp=`echo "$cf_rpath_src" |sed -e "s%-L%-R %"`
7242                         else
7243                                 cf_rpath_tmp=`echo "$cf_rpath_src" |sed -e "s%-L%$LD_RPATH_OPT%"`
7244                         fi
7245
7246                         # if we have not already added this, add it now
7247                         cf_rpath_tst=`echo "$EXTRA_LDFLAGS" | sed -e "s%$cf_rpath_tmp %%"`
7248                         if test "x$cf_rpath_tst" = "x$EXTRA_LDFLAGS"
7249                         then
7250                                 CF_VERBOSE(...Filter $cf_rpath_src ->$cf_rpath_tmp)
7251                                 EXTRA_LDFLAGS="$cf_rpath_tmp $EXTRA_LDFLAGS"
7252                         fi
7253                 fi
7254                 ;;
7255         esac
7256         cf_rpath_dst="$cf_rpath_dst $cf_rpath_src"
7257 done
7258 $1=$cf_rpath_dst
7259
7260 CF_VERBOSE(...checked $1 [$]$1)
7261 AC_SUBST(EXTRA_LDFLAGS)
7262 ])dnl
7263 dnl ---------------------------------------------------------------------------
7264 dnl CF_SAVE_XTRA_FLAGS version: 1 updated: 2020/01/11 16:46:44
7265 dnl ------------------
7266 dnl Use this macro to save CFLAGS/CPPFLAGS/LIBS before checks against X headers
7267 dnl and libraries which do not update those variables.
7268 dnl
7269 dnl $1 = name of current macro
7270 define([CF_SAVE_XTRA_FLAGS],
7271 [
7272 cf_save_LIBS_$1="$LIBS"
7273 cf_save_CFLAGS_$1="$CFLAGS"
7274 cf_save_CPPFLAGS_$1="$CPPFLAGS"
7275 LIBS="$LIBS ${X_PRE_LIBS} ${X_LIBS} ${X_EXTRA_LIBS}"
7276 for cf_X_CFLAGS in $X_CFLAGS
7277 do
7278         case "x$cf_X_CFLAGS" in
7279         x-[[IUD]]*)
7280                 CPPFLAGS="$CPPFLAGS $cf_X_CFLAGS"
7281                 ;;
7282         *)
7283                 CFLAGS="$CFLAGS $cf_X_CFLAGS"
7284                 ;;
7285         esac
7286 done
7287 ])dnl
7288 dnl ---------------------------------------------------------------------------
7289 dnl CF_SHARED_OPTS version: 107 updated: 2021/09/04 06:47:34
7290 dnl --------------
7291 dnl --------------
7292 dnl Attempt to determine the appropriate CC/LD options for creating a shared
7293 dnl library.
7294 dnl
7295 dnl Notes:
7296 dnl a) ${LOCAL_LDFLAGS} is used to link executables that will run within
7297 dnl the build-tree, i.e., by making use of the libraries that are compiled in
7298 dnl $rel_builddir/lib We avoid compiling-in a $rel_builddir/lib path for the
7299 dnl shared library since that can lead to unexpected results at runtime.
7300 dnl b) ${LOCAL_LDFLAGS2} has the same intention but assumes that the shared
7301 dnl libraries are compiled in ../../lib
7302 dnl
7303 dnl The variable 'cf_cv_do_symlinks' is used to control whether we configure
7304 dnl to install symbolic links to the rel/abi versions of shared libraries.
7305 dnl
7306 dnl The variable 'cf_cv_shlib_version' controls whether we use the rel or abi
7307 dnl version when making symbolic links.
7308 dnl
7309 dnl The variable 'cf_cv_shlib_version_infix' controls whether shared library
7310 dnl version numbers are infix (ex: libncurses.<ver>.dylib) or postfix
7311 dnl (ex: libncurses.so.<ver>).
7312 dnl
7313 dnl Some loaders leave 'so_locations' lying around.  It is nice to clean up.
7314 AC_DEFUN([CF_SHARED_OPTS],
7315 [
7316         AC_REQUIRE([CF_LD_RPATH_OPT])
7317
7318         RM_SHARED_OPTS=
7319         LOCAL_LDFLAGS=
7320         LOCAL_LDFLAGS2=
7321         LD_SHARED_OPTS=
7322         INSTALL_LIB="-m 644"
7323         : ${rel_builddir:=.}
7324
7325         shlibdir=$libdir
7326         AC_SUBST(shlibdir)
7327
7328         MAKE_DLLS="#"
7329         AC_SUBST(MAKE_DLLS)
7330
7331         cf_cv_do_symlinks=no
7332         cf_ld_rpath_opt=
7333         test "$cf_cv_enable_rpath" = yes && cf_ld_rpath_opt="$LD_RPATH_OPT"
7334
7335         AC_MSG_CHECKING(if release/abi version should be used for shared libs)
7336         AC_ARG_WITH(shlib-version,
7337         [  --with-shlib-version=X  Specify rel or abi version for shared libs],
7338         [test -z "$withval" && withval=auto
7339         case "$withval" in
7340         (yes)
7341                 cf_cv_shlib_version=auto
7342                 ;;
7343         (rel|abi|auto)
7344                 cf_cv_shlib_version=$withval
7345                 ;;
7346         (*)
7347                 AC_MSG_RESULT($withval)
7348                 AC_MSG_ERROR([option value must be one of: rel, abi, or auto])
7349                 ;;
7350         esac
7351         ],[cf_cv_shlib_version=auto])
7352         AC_MSG_RESULT($cf_cv_shlib_version)
7353
7354         cf_cv_rm_so_locs=no
7355         cf_try_cflags=
7356
7357         # Some less-capable ports of gcc support only -fpic
7358         CC_SHARED_OPTS=
7359
7360         cf_try_fPIC=no
7361         if test "$GCC" = yes
7362         then
7363                 cf_try_fPIC=yes
7364         else
7365                 case "$cf_cv_system_name" in
7366                 (*linux*)       # e.g., PGI compiler
7367                         cf_try_fPIC=yes
7368                         ;;
7369                 esac
7370         fi
7371
7372         if test "$cf_try_fPIC" = yes
7373         then
7374                 AC_MSG_CHECKING(which $CC option to use)
7375                 cf_save_CFLAGS="$CFLAGS"
7376                 for CC_SHARED_OPTS in -fPIC -fpic ''
7377                 do
7378                         CFLAGS="$cf_save_CFLAGS $CC_SHARED_OPTS"
7379                         AC_TRY_COMPILE([#include <stdio.h>],[int x = 1],[break],[])
7380                 done
7381                 AC_MSG_RESULT($CC_SHARED_OPTS)
7382                 CFLAGS="$cf_save_CFLAGS"
7383         fi
7384
7385         cf_cv_shlib_version_infix=no
7386
7387         case "$cf_cv_system_name" in
7388         (aix4.[3-9]*|aix[[5-7]]*)
7389                 if test "$GCC" = yes; then
7390                         CC_SHARED_OPTS='-Wl,-brtl'
7391                         MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -Wl,-brtl -Wl,-blibpath:${RPATH_LIST}:/usr/lib -o [$]@'
7392                 else
7393                         CC_SHARED_OPTS='-brtl'
7394                         # as well as '-qpic=large -G' or perhaps "-bM:SRE -bnoentry -bexpall"
7395                         MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -G -Wl,-brtl -Wl,-blibpath:${RPATH_LIST}:/usr/lib -o [$]@'
7396                 fi
7397                 ;;
7398         (beos*)
7399                 MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -o $[@] -Xlinker -soname=`basename $[@]` -nostart -e 0'
7400                 ;;
7401         (cygwin*)
7402                 CC_SHARED_OPTS=
7403                 MK_SHARED_LIB=$SHELL' '$rel_builddir'/mk_shared_lib.sh [$]@ [$]{CC} [$]{CFLAGS}'
7404                 RM_SHARED_OPTS="$RM_SHARED_OPTS $rel_builddir/mk_shared_lib.sh *.dll.a"
7405                 cf_cv_shlib_version=cygdll
7406                 cf_cv_shlib_version_infix=cygdll
7407                 shlibdir=$bindir
7408                 MAKE_DLLS=
7409                 cat >mk_shared_lib.sh <<-CF_EOF
7410                 #!$SHELL
7411                 SHARED_LIB=\[$]1
7412                 IMPORT_LIB=\`echo "\[$]1" | sed -e 's/cyg/lib/' -e 's/[[0-9]]*\.dll[$]/.dll.a/'\`
7413                 shift
7414                 cat <<-EOF
7415                 Linking shared library
7416                 ** SHARED_LIB \[$]SHARED_LIB
7417                 ** IMPORT_LIB \[$]IMPORT_LIB
7418 EOF
7419                 exec \[$]* ${LDFLAGS} -shared -Wl,--out-implib=\[$]{IMPORT_LIB} -Wl,--export-all-symbols -o \[$]{SHARED_LIB}
7420 CF_EOF
7421                 chmod +x mk_shared_lib.sh
7422                 ;;
7423         (msys*)
7424                 CC_SHARED_OPTS=
7425                 MK_SHARED_LIB=$SHELL' '$rel_builddir'/mk_shared_lib.sh [$]@ [$]{CC} [$]{CFLAGS}'
7426                 RM_SHARED_OPTS="$RM_SHARED_OPTS $rel_builddir/mk_shared_lib.sh *.dll.a"
7427                 cf_cv_shlib_version=msysdll
7428                 cf_cv_shlib_version_infix=msysdll
7429                 shlibdir=$bindir
7430                 MAKE_DLLS=
7431                 cat >mk_shared_lib.sh <<-CF_EOF
7432                 #!$SHELL
7433                 SHARED_LIB=\[$]1
7434                 IMPORT_LIB=\`echo "\[$]1" | sed -e 's/msys-/lib/' -e 's/[[0-9]]*\.dll[$]/.dll.a/'\`
7435                 shift
7436                 cat <<-EOF
7437                 Linking shared library
7438                 ** SHARED_LIB \[$]SHARED_LIB
7439                 ** IMPORT_LIB \[$]IMPORT_LIB
7440 EOF
7441                 exec \[$]* ${LDFLAGS} -shared -Wl,--out-implib=\[$]{IMPORT_LIB} -Wl,--export-all-symbols -o \[$]{SHARED_LIB}
7442 CF_EOF
7443                 chmod +x mk_shared_lib.sh
7444                 ;;
7445         (darwin*)
7446                 cf_try_cflags="no-cpp-precomp"
7447                 CC_SHARED_OPTS="-dynamic"
7448                 MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -dynamiclib -install_name ${libdir}/`basename $[@]` -compatibility_version ${ABI_VERSION} -current_version ${ABI_VERSION} -o $[@]'
7449                 test "$cf_cv_shlib_version" = auto && cf_cv_shlib_version=abi
7450                 cf_cv_shlib_version_infix=yes
7451                 AC_CACHE_CHECK([if ld -search_paths_first works], cf_cv_ldflags_search_paths_first, [
7452                         cf_save_LDFLAGS=$LDFLAGS
7453                         LDFLAGS="$LDFLAGS -Wl,-search_paths_first"
7454                         AC_TRY_LINK(, [int i;], cf_cv_ldflags_search_paths_first=yes, cf_cv_ldflags_search_paths_first=no)
7455                                 LDFLAGS=$cf_save_LDFLAGS])
7456                 if test "$cf_cv_ldflags_search_paths_first" = yes; then
7457                         LDFLAGS="$LDFLAGS -Wl,-search_paths_first"
7458                 fi
7459                 ;;
7460         (haiku*)
7461                 CF_SHARED_SONAME
7462                 MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -Wl,-soname,'$cf_cv_shared_soname',-stats,-lc -o $[@]'
7463                 ;;
7464         (hpux[[7-8]]*)
7465                 # HP-UX 8.07 ld lacks "+b" option used for libdir search-list
7466                 if test "$GCC" != yes; then
7467                         CC_SHARED_OPTS='+Z'
7468                 fi
7469                 MK_SHARED_LIB='${LD} ${LDFLAGS} -b -o $[@]'
7470                 INSTALL_LIB="-m 555"
7471                 ;;
7472         (hpux*)
7473                 # (tested with gcc 2.7.2 -- I don't have c89)
7474                 if test "$GCC" = yes; then
7475                         LD_SHARED_OPTS='-Xlinker +b -Xlinker ${libdir}'
7476                 else
7477                         CC_SHARED_OPTS='+Z'
7478                         LD_SHARED_OPTS='-Wl,+b,${libdir}'
7479                 fi
7480                 MK_SHARED_LIB='${LD} ${LDFLAGS} +b ${libdir} -b -o $[@]'
7481                 # HP-UX shared libraries must be executable, and should be
7482                 # readonly to exploit a quirk in the memory manager.
7483                 INSTALL_LIB="-m 555"
7484                 ;;
7485         (interix*)
7486                 test "$cf_cv_shlib_version" = auto && cf_cv_shlib_version=rel
7487                 if test "$cf_cv_shlib_version" = rel; then
7488                         cf_shared_soname='`basename $[@] .${REL_VERSION}`.${ABI_VERSION}'
7489                 else
7490                         cf_shared_soname='`basename $[@]`'
7491                 fi
7492                 CC_SHARED_OPTS=
7493                 MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -Wl,-rpath,${RPATH_LIST} -Wl,-h,'$cf_shared_soname' -o $[@]'
7494                 ;;
7495         (irix*)
7496                 if test "$cf_cv_enable_rpath" = yes ; then
7497                         EXTRA_LDFLAGS="${cf_ld_rpath_opt}\${RPATH_LIST} $EXTRA_LDFLAGS"
7498                 fi
7499                 # tested with IRIX 5.2 and 'cc'.
7500                 if test "$GCC" != yes; then
7501                         CC_SHARED_OPTS='-KPIC'
7502                         MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -rdata_shared -soname `basename $[@]` -o $[@]'
7503                 else
7504                         MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -Wl,-soname,`basename $[@]` -o $[@]'
7505                 fi
7506                 cf_cv_rm_so_locs=yes
7507                 ;;
7508         (linux*|gnu*|k*bsd*-gnu)
7509                 if test "$DFT_LWR_MODEL" = "shared" && test -n "$LD_RPATH_OPT" ; then
7510                         LOCAL_LDFLAGS="${LD_RPATH_OPT}\$(LOCAL_LIBDIR)"
7511                         LOCAL_LDFLAGS2="$LOCAL_LDFLAGS"
7512                 fi
7513                 if test "$cf_cv_enable_rpath" = yes ; then
7514                         EXTRA_LDFLAGS="${cf_ld_rpath_opt}\${RPATH_LIST} $EXTRA_LDFLAGS"
7515                 fi
7516                 CF_SHARED_SONAME
7517                 MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -Wl,-soname,'$cf_cv_shared_soname',-stats,-lc -o $[@]'
7518                 ;;
7519         (mingw*msvc*)
7520                 cf_cv_shlib_version=msvcdll
7521                 cf_cv_shlib_version_infix=msvcdll
7522                 shlibdir=$bindir
7523                 MAKE_DLLS=
7524                 if test "$DFT_LWR_MODEL" = "shared" ; then
7525                         LOCAL_LDFLAGS="-link -dll"
7526                         LOCAL_LDFLAGS2="$LOCAL_LDFLAGS"
7527                         EXTRA_LDFLAGS="-link -dll $EXTRA_LDFLAGS"
7528                 fi
7529                 CC_SHARED_OPTS=
7530                 MK_SHARED_LIB=$SHELL' '$rel_builddir'/mk_shared_lib.sh [$]@ ${LD} [$]{CFLAGS}'
7531                 RM_SHARED_OPTS="$RM_SHARED_OPTS $rel_builddir/mk_shared_lib.sh *.dll.lib"
7532                 cat >mk_shared_lib.sh <<-CF_EOF
7533                 #!$SHELL
7534                 SHARED_LIB=\[$]1
7535                 IMPORT_LIB=\`echo "\[$]1" | sed -e 's/[[0-9]]*\.dll[$]/.dll.lib/'\`
7536                 shift
7537                 my_ld=\[$]1
7538                 shift
7539                 cat <<-EOF
7540                 Linking shared library
7541                 ** SHARED LIB \$SHARED_LIB
7542                 ** IMPORT_LIB \$IMPORT_LIB
7543 EOF
7544                 args=\$(echo \[$]* | sed -E "s#-l(\w*)#\1.dll.lib#g" | sed -E "s#-L(\w*)#-LIBPATH:\1#g")
7545                 exec \$my_ld -DLL -IMPLIB:"\${IMPORT_LIB}" -OUT:"\${SHARED_LIB}" ${LDFLAGS} \$args
7546                 mv "\${IMPORT_LIB}" "\${IMPORT_LIB}"
7547 CF_EOF
7548                 chmod +x mk_shared_lib.sh
7549                 cat >mk_prog.sh <<-CF_EOF
7550                 #!$SHELL
7551                 shift
7552                 # Ignore first argument (compiler) and use LD (link.exe) unconditionally
7553                 LD="[$]LD"
7554                 clopts=()
7555                 ldopts=("/subsystem:console")
7556                 libs=()
7557                 isdll=0
7558                 while test \[$]# -gt 0; do
7559                         case "\[$]1" in
7560                                 -link)
7561                                         # ignore -link argument
7562                                         ;;
7563                                 -M[[TD]] | -M[[TD]]d)
7564                                         # ignore runtime-library option
7565                                         ;;
7566                                 -dll)
7567                                         isdll=1
7568                                         ;;
7569                                 -W* | -w*)
7570                                         # ignore warnings
7571                                         ;;
7572                                 -D*)
7573                                         clopts+=("\[$]1")
7574                                         ;;
7575                                 -I*)
7576                                         clopts+=("\[$]1")
7577                                         ;;
7578                                 -l*)
7579                                         libs+=("\`echo \"\[$]1\" | sed \"s/^-l//\"\`")
7580                                         ;;
7581                                 -L*)
7582                                         ldopts+=("\`echo \"\[$]1\" | sed \"s/^-L/-LIBPATH:/\"\`")
7583                                         ;;
7584                                 *.obj | *.o)
7585                                         ldopts+=("\[$]1")
7586                                         ;;
7587                                 -Wl,*)
7588                                         for linkarg in \`echo '\[$]1' | sed -e 's/-Wl,//' -e 's/,/ /'\`; do
7589                                                 ldopts+=("\[$]{linkarg}")
7590                                         done
7591                                         ;;
7592                                 *.lib)
7593                                         ldopts+=("\[$]1")
7594                                         ;;
7595                                 -o)
7596                                         shift
7597                                         ldopts+=("-out:\[$]1")
7598                                         ;;
7599                                 *)
7600                                         clopts+=("\[$]1")
7601                                         ldopts+=("\[$]1")
7602                                         ;;
7603                         esac
7604                         shift
7605                 done
7606                 if [[ "\$isdll" -ne 0 ]]; then
7607                         for lib in \[$]{libs[[*]]}; do
7608                                 ldopts+=("\[$]lib.dll.lib")
7609                         done
7610                 else
7611                         for lib in \[$]{libs[[*]]}; do
7612                                 ldopts+=("\[$]lib.lib")
7613                         done
7614                 fi
7615                 cat <<-EOF
7616                 Creating program
7617                 ** ld options:   "\[$]{ldopts[[@]]}"
7618 EOF
7619                 exec \[$]LD \[$]{ldopts[[@]]}
7620 CF_EOF
7621                 chmod +x mk_prog.sh
7622                 LINK_PROGS="$SHELL ${rel_builddir}/mk_prog.sh"
7623                 LINK_TESTS="$SHELL ${rel_builddir}/mk_prog.sh"
7624                 ;;
7625         (mingw*)
7626                 cf_cv_shlib_version=mingw
7627                 cf_cv_shlib_version_infix=mingw
7628                 shlibdir=$bindir
7629                 MAKE_DLLS=
7630                 if test "$DFT_LWR_MODEL" = "shared" ; then
7631                         LOCAL_LDFLAGS="-Wl,--enable-auto-import"
7632                         LOCAL_LDFLAGS2="$LOCAL_LDFLAGS"
7633                         EXTRA_LDFLAGS="-Wl,--enable-auto-import $EXTRA_LDFLAGS"
7634                 fi
7635                 CC_SHARED_OPTS=
7636                 MK_SHARED_LIB=$SHELL' '$rel_builddir'/mk_shared_lib.sh [$]@ [$]{CC} [$]{CFLAGS}'
7637                 RM_SHARED_OPTS="$RM_SHARED_OPTS $rel_builddir/mk_shared_lib.sh *.dll.a"
7638                 cat >mk_shared_lib.sh <<-CF_EOF
7639                 #!$SHELL
7640                 SHARED_LIB=\[$]1
7641                 IMPORT_LIB=\`echo "\[$]1" | sed -e 's/[[0-9]]*\.dll[$]/.dll.a/'\`
7642                 shift
7643                 cat <<-EOF
7644                 Linking shared library
7645                 ** SHARED_LIB \[$]SHARED_LIB
7646                 ** IMPORT_LIB \[$]IMPORT_LIB
7647 EOF
7648                 exec \[$]* ${LDFLAGS} -shared -Wl,--enable-auto-import,--out-implib=\[$]{IMPORT_LIB} -Wl,--export-all-symbols -o \[$]{SHARED_LIB}
7649 CF_EOF
7650                 chmod +x mk_shared_lib.sh
7651                 ;;
7652         (openbsd[[2-9]].*|mirbsd*)
7653                 if test "$DFT_LWR_MODEL" = "shared" && test -n "$LD_RPATH_OPT" ; then
7654                         LOCAL_LDFLAGS="${LD_RPATH_OPT}\$(LOCAL_LIBDIR)"
7655                         LOCAL_LDFLAGS2="$LOCAL_LDFLAGS"
7656                 fi
7657                 if test "$cf_cv_enable_rpath" = yes ; then
7658                         EXTRA_LDFLAGS="${cf_ld_rpath_opt}\${RPATH_LIST} $EXTRA_LDFLAGS"
7659                 fi
7660                 CC_SHARED_OPTS="$CC_SHARED_OPTS -DPIC"
7661                 CF_SHARED_SONAME
7662                 MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -Wl,-Bshareable,-soname,'$cf_cv_shared_soname',-stats,-lc -o $[@]'
7663                 ;;
7664         (nskJ*)
7665                 CC_SHARED_OPTS=
7666                 MK_SHARED_LIB='${LD} -Wshared -Weld=-export_all -o $[@]'
7667                 ;;
7668         (nskL*)
7669                 CC_SHARED_OPTS=
7670                 MK_SHARED_LIB='${LD} -Wshared -Wxld=-export_all -o $[@]'
7671                 ;;
7672         (nto-qnx*|openbsd*|freebsd[[12]].*)
7673                 CC_SHARED_OPTS="$CC_SHARED_OPTS -DPIC"
7674                 MK_SHARED_LIB='${LD} ${LDFLAGS} -Bshareable -o $[@]'
7675                 test "$cf_cv_shlib_version" = auto && cf_cv_shlib_version=rel
7676                 ;;
7677         (dragonfly*|freebsd*)
7678                 CC_SHARED_OPTS="$CC_SHARED_OPTS -DPIC"
7679                 if test "$DFT_LWR_MODEL" = "shared" && test "$cf_cv_enable_rpath" = yes ; then
7680                         LOCAL_LDFLAGS="${cf_ld_rpath_opt}\$(LOCAL_LIBDIR)"
7681                         LOCAL_LDFLAGS2="${cf_ld_rpath_opt}\${RPATH_LIST} $LOCAL_LDFLAGS"
7682                         EXTRA_LDFLAGS="${cf_ld_rpath_opt}\${RPATH_LIST} $EXTRA_LDFLAGS"
7683                 fi
7684                 CF_SHARED_SONAME
7685                 MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -Wl,-soname,'$cf_cv_shared_soname',-stats,-lc -o $[@]'
7686                 ;;
7687         (netbsd*)
7688                 CC_SHARED_OPTS="$CC_SHARED_OPTS -DPIC"
7689                 if test "$DFT_LWR_MODEL" = "shared" && test "$cf_cv_enable_rpath" = yes ; then
7690                         LOCAL_LDFLAGS="${cf_ld_rpath_opt}\$(LOCAL_LIBDIR)"
7691                         LOCAL_LDFLAGS2="$LOCAL_LDFLAGS"
7692                         EXTRA_LDFLAGS="${cf_ld_rpath_opt}\${RPATH_LIST} $EXTRA_LDFLAGS"
7693                         if test "$cf_cv_shlib_version" = auto; then
7694                         if test -f /usr/libexec/ld.elf_so; then
7695                                 cf_cv_shlib_version=abi
7696                         else
7697                                 cf_cv_shlib_version=rel
7698                         fi
7699                         fi
7700                         CF_SHARED_SONAME
7701                         MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -Wl,-soname,'$cf_cv_shared_soname' -o $[@]'
7702                 else
7703                         MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -o $[@]'
7704                 fi
7705                 ;;
7706         (osf*|mls+*)
7707                 # tested with OSF/1 V3.2 and 'cc'
7708                 # tested with OSF/1 V3.2 and gcc 2.6.3 (but the c++ demo didn't
7709                 # link with shared libs).
7710                 MK_SHARED_LIB='${LD} ${LDFLAGS} -set_version ${REL_VERSION}:${ABI_VERSION} -expect_unresolved "*" -shared -soname `basename $[@]`'
7711                 case "$host_os" in
7712                 (osf4*)
7713                         MK_SHARED_LIB="${MK_SHARED_LIB} -msym"
7714                         ;;
7715                 esac
7716                 MK_SHARED_LIB="${MK_SHARED_LIB}"' -o $[@]'
7717                 if test "$DFT_LWR_MODEL" = "shared" && test -n "$LD_RPATH_OPT" ; then
7718                         LOCAL_LDFLAGS="${LD_RPATH_OPT}\$(LOCAL_LIBDIR)"
7719                         LOCAL_LDFLAGS2="$LOCAL_LDFLAGS"
7720                 fi
7721                 cf_cv_rm_so_locs=yes
7722                 ;;
7723         (sco3.2v5*)  # also uw2* and UW7: hops 13-Apr-98
7724                 # tested with osr5.0.5
7725                 if test "$GCC" != yes; then
7726                         CC_SHARED_OPTS='-belf -KPIC'
7727                 fi
7728                 MK_SHARED_LIB='${LD} ${LDFLAGS} -dy -G -h `basename $[@] .${REL_VERSION}`.${ABI_VERSION} -o [$]@'
7729                 if test "$cf_cv_enable_rpath" = yes ; then
7730                         # only way is to set LD_RUN_PATH but no switch for it
7731                         RUN_PATH=$libdir
7732                 fi
7733                 test "$cf_cv_shlib_version" = auto && cf_cv_shlib_version=rel
7734                 LINK_PROGS='LD_RUN_PATH=${libdir}'
7735                 LINK_TESTS='Pwd=`pwd`;LD_RUN_PATH=`dirname $${Pwd}`/lib'
7736                 ;;
7737         (sunos4*)
7738                 # tested with SunOS 4.1.1 and gcc 2.7.0
7739                 if test "$GCC" != yes; then
7740                         CC_SHARED_OPTS='-KPIC'
7741                 fi
7742                 MK_SHARED_LIB='${LD} ${LDFLAGS} -assert pure-text -o $[@]'
7743                 test "$cf_cv_shlib_version" = auto && cf_cv_shlib_version=rel
7744                 ;;
7745         (solaris2*)
7746                 # tested with SunOS 5.5.1 (solaris 2.5.1) and gcc 2.7.2
7747                 # tested with SunOS 5.10 (solaris 10) and gcc 3.4.3
7748                 if test "$DFT_LWR_MODEL" = "shared" ; then
7749                         LOCAL_LDFLAGS="-R \$(LOCAL_LIBDIR):\${libdir}"
7750                         LOCAL_LDFLAGS2="$LOCAL_LDFLAGS"
7751                 fi
7752                 if test "$cf_cv_enable_rpath" = yes ; then
7753                         EXTRA_LDFLAGS="-R \${libdir} $EXTRA_LDFLAGS"
7754                 fi
7755                 CF_SHARED_SONAME
7756                 if test "$GCC" != yes; then
7757                         cf_save_CFLAGS="$CFLAGS"
7758                         for cf_shared_opts in -xcode=pic32 -xcode=pic13 -KPIC -Kpic -O
7759                         do
7760                                 CFLAGS="$cf_shared_opts $cf_save_CFLAGS"
7761                                 AC_TRY_COMPILE([#include <stdio.h>],[printf("Hello\\n");],[break])
7762                         done
7763                         CFLAGS="$cf_save_CFLAGS"
7764                         CC_SHARED_OPTS=$cf_shared_opts
7765                         MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -dy -G -h '$cf_cv_shared_soname' -o $[@]'
7766                 else
7767                         MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -dy -G -h '$cf_cv_shared_soname' -o $[@]'
7768                 fi
7769                 ;;
7770         (sysv5uw7*|unix_sv*)
7771                 # tested with UnixWare 7.1.0 (gcc 2.95.2 and cc)
7772                 if test "$GCC" != yes; then
7773                         CC_SHARED_OPTS='-KPIC'
7774                 fi
7775                 MK_SHARED_LIB='${LD} ${LDFLAGS} -d y -G -o [$]@'
7776                 ;;
7777         (*)
7778                 CC_SHARED_OPTS='unknown'
7779                 MK_SHARED_LIB='echo unknown'
7780                 ;;
7781         esac
7782
7783         # This works if the last tokens in $MK_SHARED_LIB are the -o target.
7784         case "$cf_cv_shlib_version" in
7785         (rel|abi)
7786                 case "$MK_SHARED_LIB" in
7787                 (*'-o $[@]')
7788                         test "$cf_cv_do_symlinks" = no && cf_cv_do_symlinks=yes
7789                         ;;
7790                 (*)
7791                         AC_MSG_WARN(ignored --with-shlib-version)
7792                         ;;
7793                 esac
7794                 ;;
7795         esac
7796
7797         if test -n "$cf_try_cflags"
7798         then
7799 cat > conftest.$ac_ext <<EOF
7800 #line __oline__ "${as_me:-configure}"
7801 #include <stdio.h>
7802 int main(int argc, char *argv[[]])
7803 {
7804         printf("hello\\n");
7805         return (argv[[argc-1]] == 0) ;
7806 }
7807 EOF
7808                 cf_save_CFLAGS="$CFLAGS"
7809                 for cf_opt in $cf_try_cflags
7810                 do
7811                         CFLAGS="$cf_save_CFLAGS -$cf_opt"
7812                         AC_MSG_CHECKING(if CFLAGS option -$cf_opt works)
7813                         if AC_TRY_EVAL(ac_compile); then
7814                                 AC_MSG_RESULT(yes)
7815                                 cf_save_CFLAGS="$CFLAGS"
7816                         else
7817                                 AC_MSG_RESULT(no)
7818                         fi
7819                 done
7820                 CFLAGS="$cf_save_CFLAGS"
7821         fi
7822
7823
7824         # RPATH_LIST is a colon-separated list of directories
7825         test -n "$cf_ld_rpath_opt" && MK_SHARED_LIB="$MK_SHARED_LIB $cf_ld_rpath_opt\${RPATH_LIST}"
7826         test -z "$RPATH_LIST" && RPATH_LIST="\${libdir}"
7827
7828         test "$cf_cv_rm_so_locs" = yes && RM_SHARED_OPTS="$RM_SHARED_OPTS so_locations"
7829
7830         CF_VERBOSE(CC_SHARED_OPTS: $CC_SHARED_OPTS)
7831         CF_VERBOSE(MK_SHARED_LIB:  $MK_SHARED_LIB)
7832
7833         AC_SUBST(CC_SHARED_OPTS)
7834         AC_SUBST(LD_RPATH_OPT)
7835         AC_SUBST(LD_SHARED_OPTS)
7836         AC_SUBST(MK_SHARED_LIB)
7837         AC_SUBST(RM_SHARED_OPTS)
7838
7839         AC_SUBST(LINK_PROGS)
7840         AC_SUBST(LINK_TESTS)
7841
7842         AC_SUBST(EXTRA_LDFLAGS)
7843         AC_SUBST(LOCAL_LDFLAGS)
7844         AC_SUBST(LOCAL_LDFLAGS2)
7845
7846         AC_SUBST(INSTALL_LIB)
7847         AC_SUBST(RPATH_LIST)
7848 ])dnl
7849 dnl ---------------------------------------------------------------------------
7850 dnl CF_SHARED_SONAME version: 3 updated: 2008/09/08 18:34:43
7851 dnl ----------------
7852 dnl utility macro for CF_SHARED_OPTS, constructs "$cf_cv_shared_soname" for
7853 dnl substitution into MK_SHARED_LIB string for the "-soname" (or similar)
7854 dnl option.
7855 dnl
7856 dnl $1 is the default that should be used for "$cf_cv_shlib_version".
7857 dnl If missing, use "rel".
7858 define([CF_SHARED_SONAME],
7859 [
7860         test "$cf_cv_shlib_version" = auto && cf_cv_shlib_version=ifelse($1,,rel,$1)
7861         if test "$cf_cv_shlib_version" = rel; then
7862                 cf_cv_shared_soname='`basename $[@] .${REL_VERSION}`.${ABI_VERSION}'
7863         else
7864                 cf_cv_shared_soname='`basename $[@]`'
7865         fi
7866 ])
7867 dnl ---------------------------------------------------------------------------
7868 dnl CF_SIGWINCH version: 7 updated: 2023/02/18 17:41:25
7869 dnl -----------
7870 dnl Use this macro after CF_XOPEN_SOURCE, but do not require it (not all
7871 dnl programs need this test).
7872 dnl
7873 dnl This is really a Mac OS X 10.4.3 workaround.  Defining _POSIX_C_SOURCE
7874 dnl forces SIGWINCH to be undefined (breaks xterm, ncurses).  Oddly, the struct
7875 dnl winsize declaration is left alone - we may revisit this if Apple choose to
7876 dnl break that part of the interface as well.
7877 AC_DEFUN([CF_SIGWINCH],
7878 [
7879 AC_CACHE_CHECK(if SIGWINCH is defined,cf_cv_define_sigwinch,[
7880         AC_TRY_COMPILE([
7881 #include <sys/types.h>
7882 #include <sys/signal.h>
7883 ],[int x = SIGWINCH; (void)x],
7884         [cf_cv_define_sigwinch=yes],
7885         [AC_TRY_COMPILE([
7886 #undef _XOPEN_SOURCE
7887 #undef _POSIX_SOURCE
7888 #undef _POSIX_C_SOURCE
7889 #include <sys/types.h>
7890 #include <sys/signal.h>
7891 ],[int x = SIGWINCH; (void)x],
7892         [cf_cv_define_sigwinch=maybe],
7893         [cf_cv_define_sigwinch=no])
7894 ])
7895 ])
7896
7897 if test "$cf_cv_define_sigwinch" = maybe ; then
7898 AC_CACHE_CHECK(for actual SIGWINCH definition,cf_cv_fixup_sigwinch,[
7899 cf_cv_fixup_sigwinch=unknown
7900 cf_sigwinch=32
7901 while test "$cf_sigwinch" != 1
7902 do
7903         AC_TRY_COMPILE([
7904 #undef _XOPEN_SOURCE
7905 #undef _POSIX_SOURCE
7906 #undef _POSIX_C_SOURCE
7907 #include <sys/types.h>
7908 #include <sys/signal.h>
7909 ],[
7910 #if SIGWINCH != $cf_sigwinch
7911 #error SIGWINCH is not $cf_sigwinch
7912 #endif
7913 int x = SIGWINCH; (void)x],
7914         [cf_cv_fixup_sigwinch=$cf_sigwinch
7915          break])
7916
7917 cf_sigwinch="`expr "$cf_sigwinch" - 1`"
7918 done
7919 ])
7920
7921         if test "$cf_cv_fixup_sigwinch" != unknown ; then
7922                 CPPFLAGS="$CPPFLAGS -DSIGWINCH=$cf_cv_fixup_sigwinch"
7923         fi
7924 fi
7925 ])dnl
7926 dnl ---------------------------------------------------------------------------
7927 dnl CF_SIG_ATOMIC_T version: 5 updated: 2020/03/10 18:53:47
7928 dnl ---------------
7929 dnl signal handler, but there are some gcc dependencies in that recommendation.
7930 dnl Try anyway.
7931 AC_DEFUN([CF_SIG_ATOMIC_T],
7932 [
7933 AC_MSG_CHECKING(for signal global datatype)
7934 AC_CACHE_VAL(cf_cv_sig_atomic_t,[
7935         for cf_type in \
7936                 "volatile sig_atomic_t" \
7937                 "sig_atomic_t" \
7938                 "int"
7939         do
7940         AC_TRY_COMPILE([
7941 #include <sys/types.h>
7942 #include <signal.h>
7943 #include <stdio.h>
7944
7945 extern $cf_type x;
7946 $cf_type x;
7947 static void handler(int sig)
7948 {
7949         (void)sig;
7950         x = 5;
7951 }],
7952                 [signal(SIGINT, handler);
7953                  x = 1],
7954                 [cf_cv_sig_atomic_t=$cf_type],
7955                 [cf_cv_sig_atomic_t=no])
7956                 test "$cf_cv_sig_atomic_t" != no && break
7957         done
7958         ])
7959 AC_MSG_RESULT($cf_cv_sig_atomic_t)
7960 test "$cf_cv_sig_atomic_t" != no && AC_DEFINE_UNQUOTED(SIG_ATOMIC_T, $cf_cv_sig_atomic_t,[Define to signal global datatype])
7961 ])dnl
7962 dnl ---------------------------------------------------------------------------
7963 dnl CF_SIZECHANGE version: 18 updated: 2021/09/04 06:35:04
7964 dnl -------------
7965 dnl Check for definitions & structures needed for window size-changing
7966 dnl
7967 dnl https://stackoverflow.com/questions/18878141/difference-between-structures-ttysize-and-winsize/50769952#50769952
7968 AC_DEFUN([CF_SIZECHANGE],
7969 [
7970 AC_REQUIRE([CF_STRUCT_TERMIOS])
7971 AC_CACHE_CHECK(declaration of size-change, cf_cv_sizechange,[
7972         cf_cv_sizechange=unknown
7973         cf_save_CPPFLAGS="$CPPFLAGS"
7974
7975 for cf_opts in "" "NEED_PTEM_H"
7976 do
7977
7978         CPPFLAGS="$cf_save_CPPFLAGS"
7979         if test -n "$cf_opts"
7980         then
7981                 CF_APPEND_TEXT(CPPFLAGS,-D$cf_opts)
7982         fi
7983         AC_TRY_COMPILE([#include <sys/types.h>
7984 #ifdef HAVE_TERMIOS_H
7985 #include <termios.h>
7986 #else
7987 #ifdef HAVE_TERMIO_H
7988 #include <termio.h>
7989 #endif
7990 #endif
7991
7992 #ifdef NEED_PTEM_H
7993 /* This is a workaround for SCO:  they neglected to define struct winsize in
7994  * termios.h -- it is only in termio.h and ptem.h
7995  */
7996 #include <sys/stream.h>
7997 #include <sys/ptem.h>
7998 #endif
7999
8000 #ifdef HAVE_SYS_IOCTL_H
8001 #include <sys/ioctl.h>
8002 #endif
8003 ],[
8004 #ifdef TIOCGSIZE
8005         struct ttysize win;     /* SunOS 3.0... */
8006         int y = win.ts_lines = 2;
8007         int x = win.ts_cols = 1;
8008         (void)y;
8009         (void)x;
8010 #else
8011 #ifdef TIOCGWINSZ
8012         struct winsize win;     /* everything else */
8013         int y = win.ws_row = 2;
8014         int x = win.ws_col = 1;
8015         (void)y;
8016         (void)x;
8017 #else
8018         no TIOCGSIZE or TIOCGWINSZ
8019 #endif /* TIOCGWINSZ */
8020 #endif /* TIOCGSIZE */
8021         ],
8022         [cf_cv_sizechange=yes],
8023         [cf_cv_sizechange=no])
8024
8025         CPPFLAGS="$cf_save_CPPFLAGS"
8026         if test "$cf_cv_sizechange" = yes ; then
8027                 echo "size-change succeeded ($cf_opts)" >&AC_FD_CC
8028                 test -n "$cf_opts" && cf_cv_sizechange="$cf_opts"
8029                 break
8030         fi
8031 done
8032 ])
8033 if test "$cf_cv_sizechange" != no ; then
8034         AC_DEFINE(HAVE_SIZECHANGE,1,[Define to 1 if sizechange declarations are provided])
8035         case "$cf_cv_sizechange" in
8036         (NEED*)
8037                 AC_DEFINE_UNQUOTED($cf_cv_sizechange )
8038                 ;;
8039         esac
8040 fi
8041 ])dnl
8042 dnl ---------------------------------------------------------------------------
8043 dnl CF_SRC_MODULES version: 33 updated: 2021/01/01 13:31:04
8044 dnl --------------
8045 dnl For each parameter, test if the source-directory exists, and if it contains
8046 dnl a 'modules' file.  If so, add to the list $cf_cv_src_modules which we'll
8047 dnl use in CF_LIB_RULES.
8048 dnl
8049 dnl This uses the configured value to make the lists SRC_SUBDIRS and
8050 dnl SUB_MAKEFILES which are used in the makefile-generation scheme.
8051 AC_DEFUN([CF_SRC_MODULES],
8052 [
8053 AC_REQUIRE([CF_CHECK_GNAT_VERSION])
8054 AC_MSG_CHECKING(for src modules)
8055
8056 # dependencies and linker-arguments for test-programs
8057 TEST_DEPS="${LIB_DIR}/${LIB_PREFIX}${LIB_NAME}${DFT_DEP_SUFFIX} $TEST_DEPS"
8058 TEST_DEP2="${LIB_2ND}/${LIB_PREFIX}${LIB_NAME}${DFT_DEP_SUFFIX} $TEST_DEP2"
8059 if test "$DFT_LWR_MODEL" = "libtool"; then
8060         TEST_ARGS="${TEST_DEPS}"
8061         TEST_ARG2="${TEST_DEP2}"
8062 else
8063         TEST_ARGS="-l${LIB_NAME}${USE_ARG_SUFFIX} $TEST_ARGS"
8064         TEST_ARG2="-l${LIB_NAME}${USE_ARG_SUFFIX} $TEST_ARG2"
8065 fi
8066
8067 PC_MODULES_TO_MAKE="ncurses${USE_ARG_SUFFIX}"
8068 cf_cv_src_modules=
8069 for cf_dir in $1
8070 do
8071         if test -f "$srcdir/$cf_dir/modules" ; then
8072
8073                 # We may/may not have tack in the distribution, though the
8074                 # makefile is.
8075                 if test "$cf_dir" = tack ; then
8076                         if test "x$cf_with_tack" != "xyes"; then
8077                                 continue
8078                         fi
8079                 fi
8080
8081                 if test -z "$cf_cv_src_modules"; then
8082                         cf_cv_src_modules=$cf_dir
8083                 else
8084                         cf_cv_src_modules="$cf_cv_src_modules $cf_dir"
8085                 fi
8086
8087                 # Make the ncurses_cfg.h file record the library interface files as
8088                 # well.  These are header files that are the same name as their
8089                 # directory.  Ncurses is the only library that does not follow
8090                 # that pattern.
8091                 if test "$cf_dir" = tack ; then
8092                         continue
8093                 elif test -f "$srcdir/${cf_dir}/${cf_dir}.h" ; then
8094                         CF_UPPER(cf_have_include,$cf_dir)
8095                         AC_DEFINE_UNQUOTED(HAVE_${cf_have_include}_H)
8096                         AC_DEFINE_UNQUOTED(HAVE_LIB${cf_have_include})
8097                         CF_MAP_LIB_BASENAME(TEST_ROOT,$cf_dir)
8098                         TEST_DEPS="${LIB_DIR}/${LIB_PREFIX}${TEST_ROOT}${DFT_DEP_SUFFIX} $TEST_DEPS"
8099                         TEST_DEP2="${LIB_2ND}/${LIB_PREFIX}${TEST_ROOT}${DFT_DEP_SUFFIX} $TEST_DEP2"
8100                         if test "$DFT_LWR_MODEL" = "libtool"; then
8101                                 TEST_ARGS="${TEST_DEPS}"
8102                                 TEST_ARG2="${TEST_DEP2}"
8103                         else
8104                                 TEST_ARGS="-l${TEST_ROOT}${USE_ARG_SUFFIX} $TEST_ARGS"
8105                                 TEST_ARG2="-l${TEST_ROOT}${USE_ARG_SUFFIX} $TEST_ARG2"
8106                         fi
8107                         PC_MODULES_TO_MAKE="${PC_MODULES_TO_MAKE} ${cf_dir}${USE_ARG_SUFFIX}"
8108                 fi
8109         fi
8110 done
8111 AC_MSG_RESULT($cf_cv_src_modules)
8112
8113 TEST_ARGS="-L${LIB_DIR} $TEST_ARGS"
8114 TEST_ARG2="-L${LIB_2ND} $TEST_ARG2"
8115
8116 AC_SUBST(TEST_ARGS)
8117 AC_SUBST(TEST_DEPS)
8118
8119 AC_SUBST(TEST_ARG2)
8120 AC_SUBST(TEST_DEP2)
8121
8122 SRC_SUBDIRS=
8123 if test "x$cf_with_manpages" != xno ; then
8124         SRC_SUBDIRS="$SRC_SUBDIRS man"
8125 fi
8126 SRC_SUBDIRS="$SRC_SUBDIRS include"
8127 for cf_dir in $cf_cv_src_modules
8128 do
8129         SRC_SUBDIRS="$SRC_SUBDIRS $cf_dir"
8130 done
8131 if test "x$cf_with_tests" != "xno" ; then
8132         SRC_SUBDIRS="$SRC_SUBDIRS test"
8133 fi
8134 # always make this, to install the ncurses-config script
8135 SRC_SUBDIRS="$SRC_SUBDIRS misc"
8136 if test "$cf_with_cxx_binding" != no; then
8137         PC_MODULES_TO_MAKE="${PC_MODULES_TO_MAKE} ncurses++${USE_ARG_SUFFIX}"
8138         SRC_SUBDIRS="$SRC_SUBDIRS c++"
8139 fi
8140
8141 test "x$with_termlib" != xno && PC_MODULES_TO_MAKE="$PC_MODULES_TO_MAKE $TINFO_ARG_SUFFIX"
8142 test "x$with_ticlib" != xno && PC_MODULES_TO_MAKE="$PC_MODULES_TO_MAKE $TICS_ARG_SUFFIX"
8143
8144 AC_SUBST(PC_MODULES_TO_MAKE)
8145
8146 ADA_SUBDIRS=
8147 if test "x$cf_with_ada" = "xyes" && test "x$cf_cv_prog_gnat_correct" = xyes && test -f "$srcdir/Ada95/Makefile.in" ; then
8148         SRC_SUBDIRS="$SRC_SUBDIRS Ada95"
8149         ADA_SUBDIRS="gen src"
8150         if test "x$cf_with_tests" != "xno" ; then
8151                 ADA_SUBDIRS="$ADA_SUBDIRS samples"
8152         fi
8153 fi
8154
8155 SUB_MAKEFILES=
8156 for cf_dir in $SRC_SUBDIRS
8157 do
8158         SUB_MAKEFILES="$SUB_MAKEFILES $cf_dir/Makefile"
8159 done
8160
8161 if test -n "$ADA_SUBDIRS"; then
8162         for cf_dir in $ADA_SUBDIRS
8163         do
8164                 SUB_MAKEFILES="$SUB_MAKEFILES Ada95/$cf_dir/Makefile"
8165         done
8166         AC_SUBST(ADA_SUBDIRS)
8167 fi
8168 ])dnl
8169 dnl ---------------------------------------------------------------------------
8170 dnl CF_STDCPP_LIBRARY version: 12 updated: 2021/01/01 13:31:04
8171 dnl -----------------
8172 dnl Check for -lstdc++, which is GNU's standard C++ library.
8173 dnl If $CXXLIBS is set, add that to the libraries used for test-linking.
8174 dnl If -lstdc++ was not already added to $LIBS or $CXXLIBS, and is needed,
8175 dnl add it to $CXXLIBS.
8176 AC_DEFUN([CF_STDCPP_LIBRARY],
8177 [
8178 if test -n "$GXX" ; then
8179
8180         cf_save="$LIBS"
8181         LIBS="$LIBS $CXXLIBS"
8182         AC_MSG_CHECKING(if we already have C++ library)
8183         AC_TRY_LINK([
8184                         #include <iostream>],[
8185                         std::cout << "Hello World!" << std::endl;],
8186                 [cf_have_libstdcpp=yes],
8187                 [cf_have_libstdcpp=no])
8188         AC_MSG_RESULT($cf_have_libstdcpp)
8189         LIBS="$cf_save"
8190
8191         if test "$cf_have_libstdcpp" != yes
8192         then
8193                 case "$cf_cv_system_name" in
8194                 (os2*)
8195                         if test -z "`g++ -dM -E - < /dev/null | grep __KLIBC__`"; then
8196                                 cf_stdcpp_libname=stdcpp
8197                         else
8198                                 cf_stdcpp_libname=stdc++
8199                         fi
8200                         ;;
8201                 (*)
8202                         cf_stdcpp_libname=stdc++
8203                         ;;
8204                 esac
8205
8206                 AC_CACHE_CHECK(for library $cf_stdcpp_libname,cf_cv_libstdcpp,[
8207                         cf_save="$LIBS"
8208                         LIBS="$LIBS $CXXLIBS"
8209                         CF_ADD_LIB($cf_stdcpp_libname)
8210                 AC_TRY_LINK([
8211                                 #include <iostream>],[
8212                                 std::cout << "Hello World!" << std::endl;],
8213                         [cf_cv_libstdcpp=yes],
8214                         [cf_cv_libstdcpp=no])
8215                         LIBS="$cf_save"
8216                 ])
8217                 test "$cf_cv_libstdcpp" = yes && { CF_ADD_LIB($cf_stdcpp_libname,CXXLIBS) }
8218         fi
8219 fi
8220 ])dnl
8221 dnl ---------------------------------------------------------------------------
8222 dnl CF_STRIP_G_OPT version: 4 updated: 2021/01/02 09:31:20
8223 dnl --------------
8224 dnl     Remove "-g" option from the compiler options
8225 AC_DEFUN([CF_STRIP_G_OPT],
8226 [$1=`echo "${$1}" | CF__SED_TRIMBLANKS(-e 's%-g %%' -e 's%-g$%%')`])dnl
8227 dnl ---------------------------------------------------------------------------
8228 dnl CF_STRUCT_SIGACTION version: 5 updated: 2012/10/06 17:56:13
8229 dnl -------------------
8230 dnl Check if we need _POSIX_SOURCE defined to use struct sigaction.  We'll only
8231 dnl do this if we've found the sigaction function.
8232 AC_DEFUN([CF_STRUCT_SIGACTION],[
8233 AC_REQUIRE([CF_XOPEN_SOURCE])
8234
8235 if test "$ac_cv_func_sigaction" = yes; then
8236 AC_MSG_CHECKING(whether sigaction needs _POSIX_SOURCE)
8237 AC_TRY_COMPILE([
8238 #include <sys/types.h>
8239 #include <signal.h>],
8240         [struct sigaction act],
8241         [sigact_bad=no],
8242         [
8243 AC_TRY_COMPILE([
8244 #define _POSIX_SOURCE
8245 #include <sys/types.h>
8246 #include <signal.h>],
8247         [struct sigaction act],
8248         [sigact_bad=yes
8249          AC_DEFINE(_POSIX_SOURCE,1,[Define to 1 if we must define _POSIX_SOURCE])],
8250          [sigact_bad=unknown])])
8251 AC_MSG_RESULT($sigact_bad)
8252 fi
8253 ])dnl
8254 dnl ---------------------------------------------------------------------------
8255 dnl CF_STRUCT_TERMIOS version: 11 updated: 2020/03/19 20:46:13
8256 dnl -----------------
8257 dnl Some machines require _POSIX_SOURCE to completely define struct termios.
8258 AC_DEFUN([CF_STRUCT_TERMIOS],[
8259 AC_REQUIRE([CF_XOPEN_SOURCE])
8260
8261 AC_CHECK_HEADERS( \
8262 termio.h \
8263 termios.h \
8264 unistd.h \
8265 sys/ioctl.h \
8266 sys/termio.h \
8267 )
8268
8269 if test "$ac_cv_header_termios_h" = yes ; then
8270         case "$CFLAGS $CPPFLAGS" in
8271         (*-D_POSIX_SOURCE*)
8272                 termios_bad=dunno ;;
8273         (*)     termios_bad=maybe ;;
8274         esac
8275         if test "$termios_bad" = maybe ; then
8276         AC_MSG_CHECKING(whether termios.h needs _POSIX_SOURCE)
8277         AC_TRY_COMPILE([#include <termios.h>],
8278                 [struct termios foo; int x = foo.c_iflag = 1; (void)x],
8279                 termios_bad=no, [
8280                 AC_TRY_COMPILE([
8281 #define _POSIX_SOURCE
8282 #include <termios.h>],
8283                         [struct termios foo; int x = foo.c_iflag = 2; (void)x],
8284                         termios_bad=unknown,
8285                         termios_bad=yes AC_DEFINE(_POSIX_SOURCE,1,[Define to 1 if we must define _POSIX_SOURCE]))
8286                         ])
8287         AC_MSG_RESULT($termios_bad)
8288         fi
8289 fi
8290 ])dnl
8291 dnl ---------------------------------------------------------------------------
8292 dnl CF_SUBDIR_PATH version: 7 updated: 2014/12/04 04:33:06
8293 dnl --------------
8294 dnl Construct a search-list for a nonstandard header/lib-file
8295 dnl     $1 = the variable to return as result
8296 dnl     $2 = the package name
8297 dnl     $3 = the subdirectory, e.g., bin, include or lib
8298 AC_DEFUN([CF_SUBDIR_PATH],
8299 [
8300 $1=
8301
8302 CF_ADD_SUBDIR_PATH($1,$2,$3,$prefix,NONE)
8303
8304 for cf_subdir_prefix in \
8305         /usr \
8306         /usr/local \
8307         /usr/pkg \
8308         /opt \
8309         /opt/local \
8310         [$]HOME
8311 do
8312         CF_ADD_SUBDIR_PATH($1,$2,$3,$cf_subdir_prefix,$prefix)
8313 done
8314 ])dnl
8315 dnl ---------------------------------------------------------------------------
8316 dnl CF_SUBST_IF version: 2 updated: 2006/06/17 12:33:03
8317 dnl -----------
8318 dnl     Shorthand macro for substituting things that the user may override
8319 dnl     with an environment variable.
8320 dnl
8321 dnl     $1 = condition to pass to "test"
8322 dnl     $2 = environment variable
8323 dnl     $3 = value if the test succeeds
8324 dnl     $4 = value if the test fails
8325 AC_DEFUN([CF_SUBST_IF],
8326 [
8327 if test $1 ; then
8328         $2=$3
8329 ifelse($4,,,[else
8330         $2=$4])
8331 fi
8332 AC_SUBST($2)
8333 ])dnl
8334 dnl ---------------------------------------------------------------------------
8335 dnl CF_SUBST_NCURSES_VERSION version: 11 updated: 2023/01/07 16:32:06
8336 dnl ------------------------
8337 dnl Get the version-number for use in shared-library naming, etc.
8338 AC_DEFUN([CF_SUBST_NCURSES_VERSION],
8339 [AC_REQUIRE([AC_PROG_EGREP])dnl
8340
8341 NCURSES_MAJOR="`${EGREP-egrep} '^NCURSES_MAJOR[[        ]]*=' "$srcdir/dist.mk" | sed -e 's/^[[^0-9]]*//'`"
8342 NCURSES_MINOR="`${EGREP-egrep} '^NCURSES_MINOR[[        ]]*=' "$srcdir/dist.mk" | sed -e 's/^[[^0-9]]*//'`"
8343 NCURSES_PATCH="`${EGREP-egrep} '^NCURSES_PATCH[[        ]]*=' "$srcdir/dist.mk" | sed -e 's/^[[^0-9]]*//'`"
8344 cf_cv_abi_version=${NCURSES_MAJOR}
8345 cf_cv_abi_default=${NCURSES_MAJOR}
8346 cf_cv_rel_version=${NCURSES_MAJOR}.${NCURSES_MINOR}
8347 dnl Show the computed version, for logging
8348 cf_cv_timestamp=`date`
8349 AC_MSG_RESULT(Configuring NCURSES $cf_cv_rel_version ABI $cf_cv_abi_default ($cf_cv_timestamp))
8350 dnl We need these values in the generated headers
8351 AC_SUBST(NCURSES_MAJOR)
8352 AC_SUBST(NCURSES_MINOR)
8353 AC_SUBST(NCURSES_PATCH)
8354 dnl We need these values in the generated makefiles
8355 AC_SUBST(cf_cv_rel_version)
8356 AC_SUBST(cf_cv_abi_version)
8357 AC_SUBST(cf_cv_abi_default)
8358 AC_SUBST(cf_cv_builtin_bool)
8359 AC_SUBST(cf_cv_header_stdbool_h)
8360 AC_SUBST(cf_cv_type_of_bool)dnl
8361 ])dnl
8362 dnl ---------------------------------------------------------------------------
8363 dnl CF_SYS_TIME_SELECT version: 6 updated: 2015/04/18 08:56:57
8364 dnl ------------------
8365 dnl Check if we can include <sys/time.h> with <sys/select.h>; this breaks on
8366 dnl older SCO configurations.
8367 AC_DEFUN([CF_SYS_TIME_SELECT],
8368 [
8369 AC_MSG_CHECKING(if sys/time.h works with sys/select.h)
8370 AC_CACHE_VAL(cf_cv_sys_time_select,[
8371 AC_TRY_COMPILE([
8372 #include <sys/types.h>
8373 #ifdef HAVE_SYS_TIME_H
8374 #include <sys/time.h>
8375 #endif
8376 #ifdef HAVE_SYS_SELECT_H
8377 #include <sys/select.h>
8378 #endif
8379 ],[],[cf_cv_sys_time_select=yes],
8380          [cf_cv_sys_time_select=no])
8381          ])
8382 AC_MSG_RESULT($cf_cv_sys_time_select)
8383 test "$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>])
8384 ])dnl
8385 dnl ---------------------------------------------------------------------------
8386 dnl CF_TOP_BUILDDIR version: 2 updated: 2013/07/27 17:38:32
8387 dnl ---------------
8388 dnl Define a top_builddir symbol, for applications that need an absolute path.
8389 AC_DEFUN([CF_TOP_BUILDDIR],
8390 [
8391 top_builddir=ifelse($1,,`pwd`,$1)
8392 AC_SUBST(top_builddir)
8393 ])dnl
8394 dnl ---------------------------------------------------------------------------
8395 dnl CF_TRY_PKG_CONFIG version: 6 updated: 2020/12/31 10:54:15
8396 dnl -----------------
8397 dnl This is a simple wrapper to use for pkg-config, for libraries which may be
8398 dnl available in that form.
8399 dnl
8400 dnl $1 = package name, which may be a shell variable
8401 dnl $2 = extra logic to use, if any, after updating CFLAGS and LIBS
8402 dnl $3 = logic to use if pkg-config does not have the package
8403 AC_DEFUN([CF_TRY_PKG_CONFIG],[
8404 AC_REQUIRE([CF_PKG_CONFIG])
8405
8406 if test "$PKG_CONFIG" != none && "$PKG_CONFIG" --exists "$1"; then
8407         CF_VERBOSE(found package $1)
8408         cf_pkgconfig_incs="`$PKG_CONFIG --cflags "$1" 2>/dev/null`"
8409         cf_pkgconfig_libs="`$PKG_CONFIG --libs   "$1" 2>/dev/null`"
8410         CF_VERBOSE(package $1 CFLAGS: $cf_pkgconfig_incs)
8411         CF_VERBOSE(package $1 LIBS: $cf_pkgconfig_libs)
8412         CF_ADD_CFLAGS($cf_pkgconfig_incs)
8413         CF_ADD_LIBS($cf_pkgconfig_libs)
8414         ifelse([$2],,:,[$2])
8415 else
8416         cf_pkgconfig_incs=
8417         cf_pkgconfig_libs=
8418         ifelse([$3],,:,[$3])
8419 fi
8420 ])
8421 dnl ---------------------------------------------------------------------------
8422 dnl CF_TRY_XOPEN_SOURCE version: 4 updated: 2022/09/10 15:16:16
8423 dnl -------------------
8424 dnl If _XOPEN_SOURCE is not defined in the compile environment, check if we
8425 dnl can define it successfully.
8426 AC_DEFUN([CF_TRY_XOPEN_SOURCE],[
8427 AC_CACHE_CHECK(if we should define _XOPEN_SOURCE,cf_cv_xopen_source,[
8428         AC_TRY_COMPILE(CF__XOPEN_SOURCE_HEAD,CF__XOPEN_SOURCE_BODY,
8429         [cf_cv_xopen_source=no],
8430         [cf_save="$CPPFLAGS"
8431          CF_APPEND_TEXT(CPPFLAGS,-D_XOPEN_SOURCE=$cf_XOPEN_SOURCE)
8432          AC_TRY_COMPILE(CF__XOPEN_SOURCE_HEAD,CF__XOPEN_SOURCE_BODY,
8433                 [cf_cv_xopen_source=no],
8434                 [cf_cv_xopen_source=$cf_XOPEN_SOURCE])
8435                 CPPFLAGS="$cf_save"
8436         ])
8437 ])
8438
8439 if test "$cf_cv_xopen_source" != no ; then
8440         CF_REMOVE_DEFINE(CFLAGS,$CFLAGS,_XOPEN_SOURCE)
8441         CF_REMOVE_DEFINE(CPPFLAGS,$CPPFLAGS,_XOPEN_SOURCE)
8442         cf_temp_xopen_source="-D_XOPEN_SOURCE=$cf_cv_xopen_source"
8443         CF_APPEND_CFLAGS($cf_temp_xopen_source)
8444 fi
8445 ])
8446 dnl ---------------------------------------------------------------------------
8447 dnl CF_TYPEOF_CHTYPE version: 11 updated: 2023/01/05 17:57:59
8448 dnl ----------------
8449 dnl Determine the type we should use for chtype (and attr_t, which is treated
8450 dnl as the same thing).  We want around 32 bits, so on most machines want a
8451 dnl long, but on newer 64-bit machines, probably want an int.  If we're using
8452 dnl wide characters, we have to have a type compatible with that, as well.
8453 AC_DEFUN([CF_TYPEOF_CHTYPE],
8454 [
8455 AC_MSG_CHECKING([for type of chtype])
8456 AC_CACHE_VAL(cf_cv_typeof_chtype,[
8457                 AC_TRY_RUN([
8458 $ac_includes_default
8459 #define WANT_BITS 31
8460 int main(void)
8461 {
8462         FILE *fp = fopen("cf_test.out", "w");
8463         if (fp != 0) {
8464                 char *result = "long";
8465                 if (sizeof(unsigned long) > sizeof(unsigned int)) {
8466                         int n;
8467                         unsigned int x, y;
8468                         for (n = 0; n < WANT_BITS; n++) {
8469                                 x = (1 << n);
8470                                 y = (x >> n);
8471                                 if (y != 1 || x == 0) {
8472                                         x = 0;
8473                                         break;
8474                                 }
8475                         }
8476                         /*
8477                          * If x is nonzero, an int is big enough for the bits
8478                          * that we want.
8479                          */
8480                         result = (x != 0) ? "int" : "long";
8481                 }
8482                 fputs(result, fp);
8483                 fclose(fp);
8484         }
8485         ${cf_cv_main_return:-return}(0);
8486 }
8487                 ],
8488                 [cf_cv_typeof_chtype=`cat cf_test.out`],
8489                 [cf_cv_typeof_chtype=long],
8490                 [cf_cv_typeof_chtype=long])
8491                 rm -f cf_test.out
8492         ])
8493 AC_MSG_RESULT($cf_cv_typeof_chtype)
8494
8495 AC_SUBST(cf_cv_typeof_chtype)
8496 AC_DEFINE_UNQUOTED(TYPEOF_CHTYPE,$cf_cv_typeof_chtype,[Define to actual type if needed for chtype])
8497 ])dnl
8498 dnl ---------------------------------------------------------------------------
8499 dnl CF_TYPE_SIGACTION version: 4 updated: 2012/10/06 17:56:13
8500 dnl -----------------
8501 dnl
8502 AC_DEFUN([CF_TYPE_SIGACTION],
8503 [
8504 AC_MSG_CHECKING([for type sigaction_t])
8505 AC_CACHE_VAL(cf_cv_type_sigaction,[
8506         AC_TRY_COMPILE([
8507 #include <signal.h>],
8508                 [sigaction_t x],
8509                 [cf_cv_type_sigaction=yes],
8510                 [cf_cv_type_sigaction=no])])
8511 AC_MSG_RESULT($cf_cv_type_sigaction)
8512 test "$cf_cv_type_sigaction" = yes && AC_DEFINE(HAVE_TYPE_SIGACTION,1,[Define to 1 if we have the sigaction_t type])
8513 ])dnl
8514 dnl ---------------------------------------------------------------------------
8515 dnl CF_UNSIGNED_LITERALS version: 2 updated: 1998/02/07 22:10:16
8516 dnl --------------------
8517 dnl Test if the compiler supports 'U' and 'L' suffixes.  Only old compilers
8518 dnl won't, but they're still there.
8519 AC_DEFUN([CF_UNSIGNED_LITERALS],
8520 [
8521 AC_MSG_CHECKING([if unsigned literals are legal])
8522 AC_CACHE_VAL(cf_cv_unsigned_literals,[
8523         AC_TRY_COMPILE([],[long x = 1L + 1UL + 1U + 1],
8524                 [cf_cv_unsigned_literals=yes],
8525                 [cf_cv_unsigned_literals=no])
8526         ])
8527 AC_MSG_RESULT($cf_cv_unsigned_literals)
8528 ])dnl
8529 dnl ---------------------------------------------------------------------------
8530 dnl CF_UPPER version: 5 updated: 2001/01/29 23:40:59
8531 dnl --------
8532 dnl Make an uppercase version of a variable
8533 dnl $1=uppercase($2)
8534 AC_DEFUN([CF_UPPER],
8535 [
8536 $1=`echo "$2" | sed y%abcdefghijklmnopqrstuvwxyz./-%ABCDEFGHIJKLMNOPQRSTUVWXYZ___%`
8537 ])dnl
8538 dnl ---------------------------------------------------------------------------
8539 dnl CF_UTF8_LIB version: 10 updated: 2023/01/11 04:05:23
8540 dnl -----------
8541 dnl Check for multibyte support, and if not found, utf8 compatibility library
8542 AC_DEFUN([CF_UTF8_LIB],
8543 [
8544 AC_HAVE_HEADERS(wchar.h)
8545 AC_CACHE_CHECK(for multibyte character support,cf_cv_utf8_lib,[
8546         cf_save_LIBS="$LIBS"
8547         AC_TRY_LINK([
8548 $ac_includes_default
8549 #ifdef HAVE_WCHAR_H
8550 #include <wchar.h>
8551 #endif
8552 ],[putwc(0,0);],
8553         [cf_cv_utf8_lib=yes],
8554         [CF_FIND_LINKAGE([
8555 #include <libutf8.h>],[putwc(0,0);],utf8,
8556                 [cf_cv_utf8_lib=add-on],
8557                 [cf_cv_utf8_lib=no])
8558 ])])
8559
8560 # HAVE_LIBUTF8_H is used by ncurses if curses.h is shared between
8561 # ncurses/ncursesw:
8562 if test "$cf_cv_utf8_lib" = "add-on" ; then
8563         AC_DEFINE(HAVE_LIBUTF8_H,1,[Define to 1 if we should include libutf8.h])
8564         CF_ADD_INCDIR($cf_cv_header_path_utf8)
8565         CF_ADD_LIBDIR($cf_cv_library_path_utf8)
8566         CF_ADD_LIBS($cf_cv_library_file_utf8)
8567 fi
8568 ])dnl
8569 dnl ---------------------------------------------------------------------------
8570 dnl CF_VA_COPY version: 6 updated: 2018/12/04 18:14:25
8571 dnl ----------
8572 dnl check for va_copy, part of stdarg.h starting with ISO C 1999.
8573 dnl Also, workaround for glibc's __va_copy, by checking for both.
8574 dnl Finally, try to accommodate pre-ISO C 1999 headers.
8575 AC_DEFUN([CF_VA_COPY],[
8576 AC_CACHE_CHECK(for va_copy, cf_cv_have_va_copy,[
8577 AC_TRY_LINK([
8578 #include <stdarg.h>
8579 ],[
8580         static va_list dst;
8581         static va_list src;
8582         va_copy(dst, src)],
8583         cf_cv_have_va_copy=yes,
8584         cf_cv_have_va_copy=no)])
8585
8586 if test "$cf_cv_have_va_copy" = yes;
8587 then
8588         AC_DEFINE(HAVE_VA_COPY,1,[Define to 1 if we have va_copy])
8589 else # !cf_cv_have_va_copy
8590
8591 AC_CACHE_CHECK(for __va_copy, cf_cv_have___va_copy,[
8592 AC_TRY_LINK([
8593 #include <stdarg.h>
8594 ],[
8595         static va_list dst;
8596         static va_list src;
8597         __va_copy(dst, src)],
8598         cf_cv_have___va_copy=yes,
8599         cf_cv_have___va_copy=no)])
8600
8601 if test "$cf_cv_have___va_copy" = yes
8602 then
8603         AC_DEFINE(HAVE___VA_COPY,1,[Define to 1 if we have __va_copy])
8604 else # !cf_cv_have___va_copy
8605
8606 AC_CACHE_CHECK(for __builtin_va_copy, cf_cv_have___builtin_va_copy,[
8607 AC_TRY_LINK([
8608 #include <stdarg.h>
8609 ],[
8610         static va_list dst;
8611         static va_list src;
8612         __builtin_va_copy(dst, src)],
8613         cf_cv_have___builtin_va_copy=yes,
8614         cf_cv_have___builtin_va_copy=no)])
8615
8616 test "$cf_cv_have___builtin_va_copy" = yes &&
8617         AC_DEFINE(HAVE___BUILTIN_VA_COPY,1,[Define to 1 if we have __builtin_va_copy])
8618
8619 fi # cf_cv_have___va_copy
8620
8621 fi # cf_cv_have_va_copy
8622
8623 case "${cf_cv_have_va_copy}${cf_cv_have___va_copy}${cf_cv_have___builtin_va_copy}" in
8624 (*yes*)
8625         ;;
8626
8627 (*)
8628         AC_CACHE_CHECK(if we can simply copy va_list, cf_cv_pointer_va_list,[
8629 AC_TRY_LINK([
8630 #include <stdarg.h>
8631 ],[
8632         va_list dst;
8633         va_list src;
8634         dst = src],
8635         cf_cv_pointer_va_list=yes,
8636         cf_cv_pointer_va_list=no)])
8637
8638         if test "$cf_cv_pointer_va_list" = no
8639         then
8640                 AC_CACHE_CHECK(if we can copy va_list indirectly, cf_cv_array_va_list,[
8641 AC_TRY_LINK([
8642 #include <stdarg.h>
8643 ],[
8644         va_list dst;
8645         va_list src;
8646         *dst = *src],
8647                         cf_cv_array_va_list=yes,
8648                         cf_cv_array_va_list=no)])
8649                 test "$cf_cv_array_va_list" = yes && AC_DEFINE(ARRAY_VA_LIST,1,[Define to 1 if we can copy va_list indirectly])
8650         fi
8651         ;;
8652 esac
8653 ])
8654 dnl ---------------------------------------------------------------------------
8655 dnl CF_VERBOSE version: 3 updated: 2007/07/29 09:55:12
8656 dnl ----------
8657 dnl Use AC_VERBOSE w/o the warnings
8658 AC_DEFUN([CF_VERBOSE],
8659 [test -n "$verbose" && echo "   $1" 1>&AC_FD_MSG
8660 CF_MSG_LOG([$1])
8661 ])dnl
8662 dnl ---------------------------------------------------------------------------
8663 dnl CF_VERSION_INFO version: 8 updated: 2021/01/01 13:31:04
8664 dnl ---------------
8665 dnl Define several useful symbols derived from the VERSION file.  A separate
8666 dnl file is preferred to embedding the version numbers in various scripts.
8667 dnl (automake is a textbook-example of why the latter is a bad idea, but there
8668 dnl are others).
8669 dnl
8670 dnl The file contents are:
8671 dnl     libtool-version release-version patch-version
8672 dnl or
8673 dnl     release-version
8674 dnl where
8675 dnl     libtool-version (see ?) consists of 3 integers separated by '.'
8676 dnl     release-version consists of a major version and minor version
8677 dnl             separated by '.', optionally followed by a patch-version
8678 dnl             separated by '-'.  The minor version need not be an
8679 dnl             integer (but it is preferred).
8680 dnl     patch-version is an integer in the form yyyymmdd, so ifdef's and
8681 dnl             scripts can easily compare versions.
8682 dnl
8683 dnl If libtool is used, the first form is required, since CF_WITH_LIBTOOL
8684 dnl simply extracts the first field using 'cut -f1'.
8685 dnl
8686 dnl Optional parameters:
8687 dnl $1 = internal name for package
8688 dnl $2 = external name for package
8689 AC_DEFUN([CF_VERSION_INFO],
8690 [
8691 if test -f "$srcdir/VERSION" ; then
8692         AC_MSG_CHECKING(for package version)
8693
8694         # if there are not enough fields, cut returns the last one...
8695         cf_field1=`sed -e '2,$d' "$srcdir/VERSION" |cut -f1`
8696         cf_field2=`sed -e '2,$d' "$srcdir/VERSION" |cut -f2`
8697         cf_field3=`sed -e '2,$d' "$srcdir/VERSION" |cut -f3`
8698
8699         # this is how CF_BUNDLED_INTL uses $VERSION:
8700         VERSION="$cf_field1"
8701
8702         VERSION_MAJOR=`echo "$cf_field2" | sed -e 's/\..*//'`
8703         test -z "$VERSION_MAJOR" && AC_MSG_ERROR(missing major-version)
8704
8705         VERSION_MINOR=`echo "$cf_field2" | sed -e 's/^[[^.]]*\.//' -e 's/-.*//'`
8706         test -z "$VERSION_MINOR" && AC_MSG_ERROR(missing minor-version)
8707
8708         AC_MSG_RESULT(${VERSION_MAJOR}.${VERSION_MINOR})
8709
8710         AC_MSG_CHECKING(for package patch date)
8711         VERSION_PATCH=`echo "$cf_field3" | sed -e 's/^[[^-]]*-//'`
8712         case .$VERSION_PATCH in
8713         (.)
8714                 AC_MSG_ERROR(missing patch-date $VERSION_PATCH)
8715                 ;;
8716         (.[[0-9]][[0-9]][[0-9]][[0-9]][[0-9]][[0-9]][[0-9]][[0-9]])
8717                 ;;
8718         (*)
8719                 AC_MSG_ERROR(illegal patch-date $VERSION_PATCH)
8720                 ;;
8721         esac
8722         AC_MSG_RESULT($VERSION_PATCH)
8723 else
8724         AC_MSG_ERROR(did not find $srcdir/VERSION)
8725 fi
8726
8727 # show the actual data that we have for versions:
8728 CF_VERBOSE(ABI VERSION $VERSION)
8729 CF_VERBOSE(VERSION_MAJOR $VERSION_MAJOR)
8730 CF_VERBOSE(VERSION_MINOR $VERSION_MINOR)
8731 CF_VERBOSE(VERSION_PATCH $VERSION_PATCH)
8732
8733 AC_SUBST(VERSION)
8734 AC_SUBST(VERSION_MAJOR)
8735 AC_SUBST(VERSION_MINOR)
8736 AC_SUBST(VERSION_PATCH)
8737
8738 dnl if a package name is given, define its corresponding version info.  We
8739 dnl need the package name to ensure that the defined symbols are unique.
8740 ifelse($1,,,[
8741         cf_PACKAGE=$1
8742         PACKAGE=ifelse($2,,$1,$2)
8743         AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE",[Define to the package-name])
8744         AC_SUBST(PACKAGE)
8745         CF_UPPER(cf_PACKAGE,$cf_PACKAGE)
8746         AC_DEFINE_UNQUOTED(${cf_PACKAGE}_VERSION,"${VERSION_MAJOR}.${VERSION_MINOR}")
8747         AC_DEFINE_UNQUOTED(${cf_PACKAGE}_PATCHDATE,${VERSION_PATCH})
8748 ])
8749 ])dnl
8750 dnl ---------------------------------------------------------------------------
8751 dnl CF_WCHAR_TYPE version: 4 updated: 2012/10/06 16:39:58
8752 dnl -------------
8753 dnl Check if type wide-character type $1 is declared, and if so, which header
8754 dnl file is needed.  The second parameter is used to set a shell variable when
8755 dnl the type is not found.  The first parameter sets a shell variable for the
8756 dnl opposite sense.
8757 AC_DEFUN([CF_WCHAR_TYPE],
8758 [
8759 # This is needed on Tru64 5.0 to declare $1
8760 AC_CACHE_CHECK(if we must include wchar.h to declare $1,cf_cv_$1,[
8761 AC_TRY_COMPILE([
8762 #include <stdlib.h>
8763 #include <stdarg.h>
8764 #include <stdio.h>
8765 #ifdef HAVE_LIBUTF8_H
8766 #include <libutf8.h>
8767 #endif],
8768         [$1 state],
8769         [cf_cv_$1=no],
8770         [AC_TRY_COMPILE([
8771 #include <stdlib.h>
8772 #include <stdarg.h>
8773 #include <stdio.h>
8774 #include <wchar.h>
8775 #ifdef HAVE_LIBUTF8_H
8776 #include <libutf8.h>
8777 #endif],
8778         [$1 value],
8779         [cf_cv_$1=yes],
8780         [cf_cv_$1=unknown])])])
8781
8782 if test "$cf_cv_$1" = yes ; then
8783         AC_DEFINE(NEED_WCHAR_H,1,[Define to 1 if we must include wchar.h])
8784         NEED_WCHAR_H=1
8785 fi
8786
8787 ifelse([$2],,,[
8788 # if we do not find $1 in either place, use substitution to provide a fallback.
8789 if test "$cf_cv_$1" = unknown ; then
8790         $2=1
8791 fi
8792 ])
8793 ifelse($3,,,[
8794 # if we find $1 in either place, use substitution to provide a fallback.
8795 if test "$cf_cv_$1" != unknown ; then
8796         $3=1
8797 fi
8798 ])
8799 ])dnl
8800 dnl ---------------------------------------------------------------------------
8801 dnl CF_WEAK_SYMBOLS version: 1 updated: 2008/08/16 19:18:06
8802 dnl ---------------
8803 dnl Check for compiler-support for weak symbols.
8804 dnl This works with "recent" gcc.
8805 AC_DEFUN([CF_WEAK_SYMBOLS],[
8806 AC_CACHE_CHECK(if $CC supports weak symbols,cf_cv_weak_symbols,[
8807
8808 AC_TRY_COMPILE([
8809 #include <stdio.h>],
8810 [
8811 #if defined(__GNUC__)
8812 #  if defined __USE_ISOC99
8813 #    define _cat_pragma(exp)    _Pragma(#exp)
8814 #    define _weak_pragma(exp)   _cat_pragma(weak name)
8815 #  else
8816 #    define _weak_pragma(exp)
8817 #  endif
8818 #  define _declare(name)        __extension__ extern __typeof__(name) name
8819 #  define weak_symbol(name)     _weak_pragma(name) _declare(name) __attribute__((weak))
8820 #endif
8821
8822 weak_symbol(fopen);
8823 ],[cf_cv_weak_symbols=yes],[cf_cv_weak_symbols=no])
8824 ])
8825 ])dnl
8826 dnl ---------------------------------------------------------------------------
8827 dnl CF_WITH_ABI_ALTERED version: 1 updated: 2023/01/07 16:32:06
8828 dnl -------------------
8829 dnl Provide a way to override the displayed ABI version, e.g., in filenames.
8830 dnl Check this option after using the ABI version in configuration decisions.
8831 AC_DEFUN([CF_WITH_ABI_ALTERED],[
8832 AC_REQUIRE([CF_WITH_ABI_VERSION])
8833 AC_REQUIRE([CF_ABI_DEFAULTS])
8834 AC_ARG_WITH(abi-altered,
8835 [  --with-abi-altered=XXX  override visible ABI version, for packaging],[
8836         CF_NUMBER_SYNTAX($withval,ABI altered)
8837         if test "$cf_cv_abi_version" != "$withval"
8838         then
8839                 AC_MSG_WARN(altering visible ABI from $cf_cv_abi_version to $withval)
8840                 cf_cv_abi_version=$withval
8841         fi
8842 ])dnl
8843 ])dnl
8844 dnl ---------------------------------------------------------------------------
8845 dnl CF_WITH_ABI_VERSION version: 5 updated: 2023/01/07 16:32:06
8846 dnl -------------------
8847 dnl Allow library's ABI to be overridden.  Generally this happens when a
8848 dnl packager has incremented the ABI past that used in the original package,
8849 dnl and wishes to keep doing this.
8850 dnl
8851 dnl $1 is the package name, if any, to derive a corresponding {package}_ABI
8852 dnl symbol.
8853 AC_DEFUN([CF_WITH_ABI_VERSION],[
8854 test -z "$cf_cv_abi_version" && cf_cv_abi_version=0
8855 AC_ARG_WITH(abi-version,
8856 [  --with-abi-version=XXX  override derived ABI version],[
8857         if test "x$cf_cv_abi_version" != "x$withval"
8858         then
8859                 AC_MSG_WARN(overriding ABI version $cf_cv_abi_version to $withval)
8860                 case "$cf_cv_rel_version" in
8861                 (5.*)
8862                         cf_cv_rel_version=$withval.0
8863                         ;;
8864                 (6.*)
8865                         cf_cv_rel_version=$withval.9    # FIXME: should be 10 as of 6.0 release
8866                         ;;
8867                 esac
8868         fi
8869         cf_cv_abi_version=$withval])
8870         CF_NUMBER_SYNTAX($cf_cv_abi_version,ABI version)
8871 ifelse($1,,,[
8872 $1_ABI=$cf_cv_abi_version
8873 ])
8874 cf_cv_abi_default=$cf_cv_abi_version
8875 ])dnl
8876 dnl ---------------------------------------------------------------------------
8877 dnl CF_WITH_ADA_COMPILER version: 2 updated: 2010/06/26 17:35:58
8878 dnl --------------------
8879 dnl Command-line option to specify the Ada95 compiler.
8880 AC_DEFUN([CF_WITH_ADA_COMPILER],[
8881 AC_MSG_CHECKING(for ada-compiler)
8882 AC_ARG_WITH(ada-compiler,
8883         [  --with-ada-compiler=CMD specify Ada95 compiler command (default gnatmake)],
8884         [cf_ada_compiler=$withval],
8885         [cf_ada_compiler=gnatmake])
8886 AC_SUBST(cf_ada_compiler)
8887 AC_MSG_RESULT($cf_ada_compiler)
8888 ])dnl
8889 dnl ---------------------------------------------------------------------------
8890 dnl CF_WITH_ADA_INCLUDE version: 2 updated: 2010/06/26 17:35:58
8891 dnl -------------------
8892 dnl Command-line option to specify where Ada includes will install.
8893 AC_DEFUN([CF_WITH_ADA_INCLUDE],[
8894 AC_MSG_CHECKING(for ada-include)
8895 CF_WITH_PATH(ada-include,
8896    [  --with-ada-include=DIR  Ada includes are in DIR],
8897    ADA_INCLUDE,
8898    PREFIX/share/ada/adainclude,
8899    [$]prefix/share/ada/adainclude)
8900 AC_SUBST(ADA_INCLUDE)
8901 AC_MSG_RESULT($ADA_INCLUDE)
8902 ])dnl
8903 dnl ---------------------------------------------------------------------------
8904 dnl CF_WITH_ADA_LIBNAME version: 1 updated: 2019/09/07 18:59:41
8905 dnl -------------------
8906 dnl CF_WITH_ADA_LIBNAME
8907 dnl -------------------
8908 dnl Command-line option to specify how to name the resulting Ada library.
8909 dnl $1 = default value
8910 AC_DEFUN([CF_WITH_ADA_LIBNAME],[
8911 AC_MSG_CHECKING(for ada-libname)
8912 AC_ARG_WITH(ada-libname,
8913    [  --with-ada-libname=XXX  override default Ada library-name],
8914    ADA_LIBNAME=[$]withval,
8915    ADA_LIBNAME=$1)
8916 case "x$ADA_LIBNAME" in
8917 (x|xyes|xno)
8918         ADA_LIBNAME=$1
8919         ;;
8920 esac
8921 AC_SUBST(ADA_LIBNAME)
8922 AC_MSG_RESULT($ADA_LIBNAME)
8923 ])dnl
8924 dnl ---------------------------------------------------------------------------
8925 dnl CF_WITH_ADA_OBJECTS version: 2 updated: 2010/06/26 17:35:58
8926 dnl -------------------
8927 dnl Command-line option to specify where Ada objects will install.
8928 AC_DEFUN([CF_WITH_ADA_OBJECTS],[
8929 AC_MSG_CHECKING(for ada-objects)
8930 CF_WITH_PATH(ada-objects,
8931    [  --with-ada-objects=DIR  Ada objects are in DIR],
8932    ADA_OBJECTS,
8933    PREFIX/lib/ada/adalib,
8934    [$]prefix/lib/ada/adalib)
8935 AC_SUBST(ADA_OBJECTS)
8936 AC_MSG_RESULT($ADA_OBJECTS)
8937 ])dnl
8938 dnl ---------------------------------------------------------------------------
8939 dnl CF_WITH_ADA_SHAREDLIB version: 5 updated: 2018/07/21 19:10:35
8940 dnl ---------------------
8941 dnl Command-line option to specify if an Ada95 shared-library should be built,
8942 dnl and optionally what its soname should be.
8943 AC_DEFUN([CF_WITH_ADA_SHAREDLIB],[
8944 AC_REQUIRE([CF_GNAT_PROJECTS])
8945 AC_MSG_CHECKING(if an Ada95 shared-library should be built)
8946 AC_ARG_WITH(ada-sharedlib,
8947         [  --with-ada-sharedlib=soname build shared-library (requires GNAT projects)],
8948         [with_ada_sharedlib=$withval],
8949         [with_ada_sharedlib=no])
8950 AC_MSG_RESULT($with_ada_sharedlib)
8951
8952 if test "x$with_ada_sharedlib" != xno
8953 then
8954         if test "x$cf_gnat_projects" != xyes
8955         then
8956                 AC_MSG_WARN(disabling shared-library since GNAT projects are not supported)
8957                 with_ada_sharedlib=no
8958         fi
8959 fi
8960
8961 ADA_SHAREDLIB='lib$(LIB_NAME).so.1'
8962 MAKE_ADA_SHAREDLIB="#"
8963
8964 if test "x$with_ada_sharedlib" != xno
8965 then
8966         MAKE_ADA_SHAREDLIB=
8967         if test "x$with_ada_sharedlib" != xyes
8968         then
8969                 ADA_SHAREDLIB="$with_ada_sharedlib"
8970         fi
8971 fi
8972
8973 AC_SUBST(ADA_SHAREDLIB)
8974 AC_SUBST(MAKE_ADA_SHAREDLIB)
8975 ])dnl
8976 dnl ---------------------------------------------------------------------------
8977 dnl CF_WITH_DBMALLOC version: 7 updated: 2010/06/21 17:26:47
8978 dnl ----------------
8979 dnl Configure-option for dbmalloc.  The optional parameter is used to override
8980 dnl the updating of $LIBS, e.g., to avoid conflict with subsequent tests.
8981 AC_DEFUN([CF_WITH_DBMALLOC],[
8982 CF_NO_LEAKS_OPTION(dbmalloc,
8983         [  --with-dbmalloc         test: use Conor Cahill's dbmalloc library],
8984         [USE_DBMALLOC])
8985
8986 if test "$with_dbmalloc" = yes ; then
8987         AC_CHECK_HEADER(dbmalloc.h,
8988                 [AC_CHECK_LIB(dbmalloc,[debug_malloc]ifelse([$1],,[],[,$1]))])
8989 fi
8990 ])dnl
8991 dnl ---------------------------------------------------------------------------
8992 dnl CF_WITH_DMALLOC version: 7 updated: 2010/06/21 17:26:47
8993 dnl ---------------
8994 dnl Configure-option for dmalloc.  The optional parameter is used to override
8995 dnl the updating of $LIBS, e.g., to avoid conflict with subsequent tests.
8996 AC_DEFUN([CF_WITH_DMALLOC],[
8997 CF_NO_LEAKS_OPTION(dmalloc,
8998         [  --with-dmalloc          test: use Gray Watson's dmalloc library],
8999         [USE_DMALLOC])
9000
9001 if test "$with_dmalloc" = yes ; then
9002         AC_CHECK_HEADER(dmalloc.h,
9003                 [AC_CHECK_LIB(dmalloc,[dmalloc_debug]ifelse([$1],,[],[,$1]))])
9004 fi
9005 ])dnl
9006 dnl ---------------------------------------------------------------------------
9007 dnl CF_WITH_EXPORT_SYMS version: 3 updated: 2014/12/20 19:16:08
9008 dnl -------------------
9009 dnl Use this with libtool to specify the list of symbols that may be exported.
9010 dnl The input file contains one symbol per line; comments work with "#".
9011 dnl
9012 dnl $1 = basename of the ".sym" file (default $PACKAGE)
9013 AC_DEFUN([CF_WITH_EXPORT_SYMS],
9014 [
9015 AC_MSG_CHECKING(if exported-symbols file should be used)
9016 AC_ARG_WITH(export-syms,
9017         [  --with-export-syms=XXX  limit exported symbols using libtool],
9018         [with_export_syms=$withval],
9019         [with_export_syms=no])
9020 if test "x$with_export_syms" = xyes
9021 then
9022         with_export_syms='${top_srcdir}/package/ifelse($1,,${PACKAGE},[$1]).sym'
9023         AC_SUBST(PACKAGE)
9024 fi
9025 AC_MSG_RESULT($with_export_syms)
9026 if test "x$with_export_syms" != xno
9027 then
9028         EXPORT_SYMS="-export-symbols $with_export_syms"
9029         AC_SUBST(EXPORT_SYMS)
9030 fi
9031 ])dnl
9032 dnl ---------------------------------------------------------------------------
9033 dnl CF_WITH_GPM version: 10 updated: 2017/04/29 18:32:18
9034 dnl -----------
9035 dnl
9036 dnl The option parameter (if neither yes/no) is assumed to be the name of
9037 dnl the gpm library, e.g., for dynamic loading.
9038 AC_DEFUN([CF_WITH_GPM],
9039 [
9040 AC_MSG_CHECKING(if you want to link with the GPM mouse library)
9041 AC_ARG_WITH(gpm,
9042         [  --with-gpm              use Alessandro Rubini's GPM library],
9043         [with_gpm=$withval],
9044         [with_gpm=maybe])
9045 AC_MSG_RESULT($with_gpm)
9046
9047 if test "$with_gpm" != no ; then
9048         AC_CHECK_HEADER(gpm.h,[
9049                 AC_DEFINE(HAVE_GPM_H,1,[Define to 1 if we have gpm.h header])
9050                 if test "$with_gpm" != yes && test "$with_gpm" != maybe ; then
9051                         CF_VERBOSE(assuming we really have GPM library)
9052                         AC_DEFINE(HAVE_LIBGPM,1,[Define to 1 if we have the gpm library])
9053                         with_gpm=yes
9054                 else
9055                         AC_CHECK_LIB(gpm,Gpm_Open,[with_gpm=yes],[
9056                                 if test "$with_gpm" = maybe; then
9057                                         AC_MSG_WARN(Cannot link with GPM library)
9058                                         with_gpm=no
9059                                 else
9060                                         AC_MSG_ERROR(Cannot link with GPM library)
9061                                 fi
9062                         ])
9063                 fi
9064         ],[
9065                 test "$with_gpm" != maybe && AC_MSG_WARN(Cannot find GPM header)
9066                 with_gpm=no
9067         ])
9068 fi
9069 ])
9070 dnl ---------------------------------------------------------------------------
9071 dnl CF_WITH_LIBTOOL version: 36 updated: 2021/01/01 13:31:04
9072 dnl ---------------
9073 dnl Provide a configure option to incorporate libtool.  Define several useful
9074 dnl symbols for the makefile rules.
9075 dnl
9076 dnl The reference to AC_PROG_LIBTOOL does not normally work, since it uses
9077 dnl macros from libtool.m4 which is in the aclocal directory of automake.
9078 dnl Following is a simple script which turns on the AC_PROG_LIBTOOL macro.
9079 dnl But that still does not work properly since the macro is expanded outside
9080 dnl the CF_WITH_LIBTOOL macro:
9081 dnl
9082 dnl     #!/bin/sh
9083 dnl     ACLOCAL=`aclocal --print-ac-dir`
9084 dnl     if test -z "$ACLOCAL" ; then
9085 dnl             echo cannot find aclocal directory
9086 dnl             exit 1
9087 dnl     elif test ! -f $ACLOCAL/libtool.m4 ; then
9088 dnl             echo cannot find libtool.m4 file
9089 dnl             exit 1
9090 dnl     fi
9091 dnl
9092 dnl     LOCAL=aclocal.m4
9093 dnl     ORIG=aclocal.m4.orig
9094 dnl
9095 dnl     trap "mv $ORIG $LOCAL" 0 1 2 3 15
9096 dnl     rm -f $ORIG
9097 dnl     mv $LOCAL $ORIG
9098 dnl
9099 dnl     # sed the LIBTOOL= assignment to omit the current directory?
9100 dnl     sed -e 's/^LIBTOOL=.*/LIBTOOL=${LIBTOOL:-libtool}/' $ACLOCAL/libtool.m4 >>$LOCAL
9101 dnl     cat $ORIG >>$LOCAL
9102 dnl
9103 dnl     autoconf-257 $*
9104 dnl
9105 AC_DEFUN([CF_WITH_LIBTOOL],
9106 [
9107 AC_REQUIRE([CF_DISABLE_LIBTOOL_VERSION])
9108 ifdef([AC_PROG_LIBTOOL],,[
9109 LIBTOOL=
9110 ])
9111 # common library maintenance symbols that are convenient for libtool scripts:
9112 LIB_CREATE='${AR} -cr'
9113 LIB_OBJECT='${OBJECTS}'
9114 LIB_SUFFIX=.a
9115 LIB_PREP="$RANLIB"
9116
9117 # symbols used to prop libtool up to enable it to determine what it should be
9118 # doing:
9119 LIB_CLEAN=
9120 LIB_COMPILE=
9121 LIB_LINK='${CC}'
9122 LIB_INSTALL=
9123 LIB_UNINSTALL=
9124
9125 AC_MSG_CHECKING(if you want to build libraries with libtool)
9126 AC_ARG_WITH(libtool,
9127         [  --with-libtool          generate libraries with libtool],
9128         [with_libtool=$withval],
9129         [with_libtool=no])
9130 AC_MSG_RESULT($with_libtool)
9131 if test "$with_libtool" != "no"; then
9132 ifdef([AC_PROG_LIBTOOL],[
9133         # missing_content_AC_PROG_LIBTOOL{{
9134         AC_PROG_LIBTOOL
9135         # missing_content_AC_PROG_LIBTOOL}}
9136 ],[
9137         if test "$with_libtool" != "yes" ; then
9138                 CF_PATH_SYNTAX(with_libtool)
9139                 LIBTOOL=$with_libtool
9140         else
9141                 AC_CHECK_TOOLS(LIBTOOL,[libtool glibtool],none)
9142                 CF_LIBTOOL_VERSION
9143                 if test -z "$cf_cv_libtool_version" && test "$LIBTOOL" = libtool
9144                 then
9145                         CF_FORGET_TOOL(LIBTOOL)
9146                         AC_CHECK_TOOLS(LIBTOOL,[glibtool],none)
9147                         CF_LIBTOOL_VERSION
9148                 fi
9149         fi
9150         if test -z "$LIBTOOL" ; then
9151                 AC_MSG_ERROR(Cannot find libtool)
9152         fi
9153 ])dnl
9154         LIB_CREATE='${LIBTOOL} --mode=link ${CC} -rpath ${libdir} ${LIBTOOL_VERSION} `cut -f1 ${top_srcdir}/VERSION` ${LIBTOOL_OPTS} ${LT_UNDEF} $(LIBS) -o'
9155         LIB_OBJECT='${OBJECTS:.o=.lo}'
9156         LIB_SUFFIX=.la
9157         LIB_CLEAN='${LIBTOOL} --mode=clean'
9158         LIB_COMPILE='${LIBTOOL} --mode=compile'
9159         LIB_LINK='${LIBTOOL} --mode=link ${CC} ${LIBTOOL_OPTS}'
9160         LIB_INSTALL='${LIBTOOL} --mode=install'
9161         LIB_UNINSTALL='${LIBTOOL} --mode=uninstall'
9162         LIB_PREP=:
9163
9164         CF_CHECK_LIBTOOL_VERSION
9165
9166         # special hack to add -no-undefined (which libtool should do for itself)
9167         LT_UNDEF=
9168         case "$cf_cv_system_name" in
9169         (cygwin*|msys*|mingw32*|os2*|uwin*|aix[[4-7]])
9170                 LT_UNDEF=-no-undefined
9171                 ;;
9172         esac
9173         AC_SUBST([LT_UNDEF])
9174
9175         # special hack to add --tag option for C++ compiler
9176         case "$cf_cv_libtool_version" in
9177         (1.[[5-9]]*|[[2-9]].[[0-9.a-z]]*)
9178                 LIBTOOL_CXX="$LIBTOOL --tag=CXX"
9179                 LIBTOOL="$LIBTOOL --tag=CC"
9180                 ;;
9181         (*)
9182                 LIBTOOL_CXX="$LIBTOOL"
9183                 ;;
9184         esac
9185 else
9186         LIBTOOL=""
9187         LIBTOOL_CXX=""
9188 fi
9189
9190 test -z "$LIBTOOL" && ECHO_LT=
9191
9192 AC_SUBST(LIBTOOL)
9193 AC_SUBST(LIBTOOL_CXX)
9194 AC_SUBST(LIBTOOL_OPTS)
9195
9196 AC_SUBST(LIB_CREATE)
9197 AC_SUBST(LIB_OBJECT)
9198 AC_SUBST(LIB_SUFFIX)
9199 AC_SUBST(LIB_PREP)
9200
9201 AC_SUBST(LIB_CLEAN)
9202 AC_SUBST(LIB_COMPILE)
9203 AC_SUBST(LIB_LINK)
9204 AC_SUBST(LIB_INSTALL)
9205 AC_SUBST(LIB_UNINSTALL)
9206
9207 ])dnl
9208 dnl ---------------------------------------------------------------------------
9209 dnl CF_WITH_LIBTOOL_OPTS version: 4 updated: 2015/04/17 21:13:04
9210 dnl --------------------
9211 dnl Allow user to pass additional libtool options into the library creation
9212 dnl and link steps.  The main use for this is to do something like
9213 dnl     ./configure --with-libtool-opts=-static
9214 dnl to get the same behavior as automake-flavored
9215 dnl     ./configure --enable-static
9216 AC_DEFUN([CF_WITH_LIBTOOL_OPTS],[
9217 AC_MSG_CHECKING(for additional libtool options)
9218 AC_ARG_WITH(libtool-opts,
9219         [  --with-libtool-opts=XXX specify additional libtool options],
9220         [with_libtool_opts=$withval],
9221         [with_libtool_opts=no])
9222 AC_MSG_RESULT($with_libtool_opts)
9223
9224 case .$with_libtool_opts in
9225 (.yes|.no|.)
9226         ;;
9227 (*)
9228         LIBTOOL_OPTS="$LIBTOOL_OPTS $with_libtool_opts"
9229         ;;
9230 esac
9231
9232 AC_SUBST(LIBTOOL_OPTS)
9233 ])dnl
9234 dnl ---------------------------------------------------------------------------
9235 dnl CF_WITH_LIB_BASENAME version: 1 updated: 2020/03/07 20:05:14
9236 dnl --------------------
9237 dnl Allow for overriding the basename of a library, i.e., the part to which
9238 dnl prefixes/suffixes are attached.
9239 dnl
9240 dnl $1 = variable to set
9241 dnl $2 = option name
9242 dnl $3 = default basename for library, if omitted use $2
9243 AC_DEFUN([CF_WITH_LIB_BASENAME],
9244 [
9245 AC_MSG_CHECKING(for desired basename for $2 library)
9246 AC_ARG_WITH($2-libname,
9247         [  --with-$2-libname=XXX override ifelse($3,,$2,$3) basename of library],
9248         [with_lib_basename=$withval],
9249         [with_lib_basename=ifelse($3,,$2,$3)])
9250 $1="$with_lib_basename"
9251
9252 case "x[$]$1" in
9253 (x|xno|xnone|xyes)
9254         $1=ifelse($3,,$2,$3)
9255         ;;
9256 (*)
9257         ;;
9258 esac
9259
9260 AC_MSG_RESULT([$]$1)
9261 AC_SUBST($1)
9262 ])dnl
9263 dnl ---------------------------------------------------------------------------
9264 dnl CF_WITH_LIB_PREFIX version: 2 updated: 2021/01/01 16:53:59
9265 dnl ------------------
9266 dnl Allow the library-prefix to be overridden.  OS/2 EMX originally had no
9267 dnl "lib" prefix, e.g., because it used the dll naming convention.
9268 dnl
9269 dnl $1 = variable to set
9270 AC_DEFUN([CF_WITH_LIB_PREFIX],
9271 [
9272 AC_MSG_CHECKING(if you want to have a library-prefix)
9273 AC_ARG_WITH(lib-prefix,
9274         [  --with-lib-prefix       override library-prefix],
9275         [with_lib_prefix=$withval],
9276         [with_lib_prefix=auto])
9277 AC_MSG_RESULT($with_lib_prefix)
9278
9279 if test "$with_lib_prefix" = auto
9280 then
9281         CF_LIB_PREFIX($1)
9282 elif test "$with_lib_prefix" = no
9283 then
9284         LIB_PREFIX=
9285 else
9286         LIB_PREFIX=$with_lib_prefix
9287 fi
9288 ])dnl
9289 dnl ---------------------------------------------------------------------------
9290 dnl CF_WITH_PATH version: 12 updated: 2021/09/04 06:35:04
9291 dnl ------------
9292 dnl Wrapper for AC_ARG_WITH to ensure that user supplies a pathname, not just
9293 dnl defaulting to yes/no.
9294 dnl
9295 dnl $1 = option name
9296 dnl $2 = help-text
9297 dnl $3 = environment variable to set
9298 dnl $4 = default value, shown in the help-message, must be a constant
9299 dnl $5 = default value, if it is an expression & cannot be in the help-message
9300 dnl
9301 AC_DEFUN([CF_WITH_PATH],
9302 [AC_ARG_WITH($1,[$2 ](default: ifelse([$4],,empty,[$4])),,
9303 ifelse([$4],,[withval="${$3}"],[withval="${$3:-ifelse([$5],,[$4],[$5])}"]))dnl
9304 if ifelse([$5],,true,[test -n "$5"]) ; then
9305 CF_PATH_SYNTAX(withval)
9306 fi
9307 eval $3="$withval"
9308 AC_SUBST($3)dnl
9309 ])dnl
9310 dnl ---------------------------------------------------------------------------
9311 dnl CF_WITH_PATHLIST version: 13 updated: 2021/09/04 06:35:04
9312 dnl ----------------
9313 dnl Process an option specifying a list of colon-separated paths.
9314 dnl
9315 dnl $1 = option name
9316 dnl $2 = help-text
9317 dnl $3 = environment variable to set
9318 dnl $4 = default value, shown in the help-message, must be a constant
9319 dnl $5 = default value, if it is an expression & cannot be in the help-message
9320 dnl $6 = flag to tell if we want to define or substitute
9321 dnl
9322 AC_DEFUN([CF_WITH_PATHLIST],[
9323 AC_REQUIRE([CF_PATHSEP])
9324 AC_ARG_WITH($1,[$2 ](default: ifelse($4,,empty,$4)),,
9325 ifelse($4,,[withval=${$3}],[withval=${$3:-ifelse($5,,$4,$5)}]))dnl
9326
9327 IFS="${IFS:-    }"; ac_save_ifs="$IFS"; IFS="${PATH_SEPARATOR}"
9328 cf_dst_path=
9329 for cf_src_path in $withval
9330 do
9331   CF_PATH_SYNTAX(cf_src_path)
9332   test -n "$cf_dst_path" && cf_dst_path="${cf_dst_path}$PATH_SEPARATOR"
9333   cf_dst_path="${cf_dst_path}${cf_src_path}"
9334 done
9335 IFS="$ac_save_ifs"
9336
9337 ifelse($6,define,[
9338 # Strip single quotes from the value, e.g., when it was supplied as a literal
9339 # for $4 or $5.
9340 case "$cf_dst_path" in
9341 (\'*)
9342   cf_dst_path="`echo "$cf_dst_path" |sed -e s/\'// -e s/\'\$//`"
9343   ;;
9344 esac
9345 cf_dst_path=`echo "$cf_dst_path" | sed -e 's/\\\\/\\\\\\\\/g'`
9346 ])
9347
9348 # This may use the prefix/exec_prefix symbols which will only yield "NONE"
9349 # so we have to check/work around.  We do prefer the result of "eval"...
9350 eval cf_dst_eval="$cf_dst_path"
9351 case "x$cf_dst_eval" in
9352 (xNONE*)
9353         $3=$cf_dst_path
9354         ;;
9355 (*)
9356         $3="$cf_dst_eval"
9357         ;;
9358 esac
9359 AC_SUBST($3)dnl
9360
9361 ])dnl
9362 dnl ---------------------------------------------------------------------------
9363 dnl CF_WITH_PATH_PROG version: 1 updated: 2019/06/30 19:44:43
9364 dnl -----------------
9365 dnl Check for a given program, like CF_PATH_PROG, but allow override using a
9366 dnl "--with-xxx" option.
9367 dnl
9368 dnl Parameters:
9369 dnl             $1 = environment variable to set/update
9370 dnl             $2 = program name
9371 dnl             $3 = help-text
9372 dnl             $4 = $PATH
9373 AC_DEFUN([CF_WITH_PATH_PROG],[
9374 AC_ARG_WITH($2-path,
9375         [  --with-$2-path=XXX     specify path of $2 ifelse($3,,,$3)],
9376         [AC_MSG_CHECKING(for $2 program ifelse($3,,,$3))
9377                 $1=$withval
9378                 AC_MSG_RESULT([$]$1)
9379                 CF_PATH_SYNTAX($1)
9380         ],
9381         [CF_PATH_PROG($1,$2,,ifelse($4,,,$4))
9382                 if test -z "[$]$1"
9383                 then
9384                         AC_MSG_WARN(no $2 program found ifelse($3,,,$3))
9385                 fi
9386         ])
9387 ])
9388 dnl ---------------------------------------------------------------------------
9389 dnl CF_WITH_PCRE2 version: 6 updated: 2021/08/11 20:35:34
9390 dnl -------------
9391 dnl Add PCRE2 (Perl-compatible regular expressions v2) to the build if it is
9392 dnl available and the user requests it.  Assume the application will otherwise
9393 dnl use the POSIX interface.
9394 dnl
9395 dnl TODO allow $withval to specify package location
9396 AC_DEFUN([CF_WITH_PCRE2],
9397 [
9398 AC_REQUIRE([CF_PKG_CONFIG])
9399
9400 AC_MSG_CHECKING(if you want to use PCRE2 for regular-expressions)
9401 AC_ARG_WITH(pcre2,
9402         [  --with-pcre2            use PCRE2 for regular-expressions])
9403 test -z "$with_pcre2" && with_pcre2=no
9404 AC_MSG_RESULT($with_pcre2)
9405
9406 if test "x$with_pcre2" != xno ; then
9407         cf_with_pcre2_ok=no
9408         for cf_with_pcre2 in libpcre2 libpcre2-posix libpcre
9409         do
9410                 CF_TRY_PKG_CONFIG($cf_with_pcre2,[cf_with_pcre2_ok=yes; break])
9411         done
9412         cf_with_pcre2_ok=yes || AC_MSG_ERROR(Cannot find PCRE2 library)
9413
9414         AC_DEFINE(HAVE_LIB_PCRE2,1,[Define to 1 if we can/should compile with the PCRE2 library])
9415
9416         # if pkgconfig gave no results, look for the libraries directly
9417         case "$LIBS" in
9418         (*pcre2-posix*|*pcreposix*)
9419                 ;;
9420         (*)
9421                 AC_CHECK_LIB(pcre2-posix,regcomp,[
9422                         CF_ADD_LIB(pcre2-posix)],
9423                         [AC_CHECK_LIB(pcreposix,regcomp,[
9424                          CF_ADD_LIB(pcreposix)
9425                         ],[AC_MSG_ERROR(Cannot find PCRE2 POSIX library)])])
9426                 ;;
9427         esac
9428
9429         # either way, check for the library header files
9430         AC_CHECK_HEADERS(pcre2posix.h pcreposix.h)
9431         AC_CHECK_FUNCS(PCRE2regcomp)
9432 fi
9433 ])dnl
9434 dnl ---------------------------------------------------------------------------
9435 dnl CF_WITH_PKG_CONFIG_LIBDIR version: 21 updated: 2023/01/22 13:37:42
9436 dnl -------------------------
9437 dnl Allow the choice of the pkg-config library directory to be overridden.
9438 dnl
9439 dnl pkg-config uses a search-list built from these colon-separated lists of
9440 dnl directories:
9441 dnl a) $PKG_CONFIG_PATH (tested first, added if set)
9442 dnl b) $PKG_CONFIG_LIBDIR (tested second, added if set)
9443 dnl c) builtin-list (added if $PKG_CONFIG_LIBDIR is not set)
9444 dnl
9445 dnl pkgconf (used with some systems such as FreeBSD in place of pkg-config)
9446 dnl optionally ignores $PKG_CONFIG_LIBDIR.  Very old versions of pkg-config,
9447 dnl e.g., Solaris 10 also do not recognize $PKG_CONFIG_LIBDIR.
9448 AC_DEFUN([CF_WITH_PKG_CONFIG_LIBDIR],[
9449
9450 case "$PKG_CONFIG" in
9451 (no|none|yes)
9452         AC_MSG_CHECKING(for pkg-config library directory)
9453         ;;
9454 (*)
9455         AC_MSG_CHECKING(for $PKG_CONFIG library directory)
9456         ;;
9457 esac
9458
9459 # if $PKG_CONFIG_LIBDIR is set, try to use that
9460 if test -n "$PKG_CONFIG_PATH"; then
9461         cf_search_path=`echo "$PKG_CONFIG_PATH" | sed -e 's/:/ /g' -e 's,^[[    ]]*,,' -e 's,[[         ]]*$,,'`
9462 elif test -n "$PKG_CONFIG_LIBDIR"; then
9463         cf_search_path=`echo "$PKG_CONFIG_LIBDIR" | sed -e 's/:/ /g' -e 's,^[[  ]]*,,' -e 's,[[         ]]*$,,'`
9464 else
9465         cf_search_path=auto
9466 fi
9467
9468 # if the option is used, let that override.  otherwise default to "libdir"
9469 AC_ARG_WITH(pkg-config-libdir,
9470         [  --with-pkg-config-libdir=XXX use given directory for installing pc-files],
9471         [cf_search_path=$withval],
9472         [test "x$PKG_CONFIG" != xnone && test -z "$cf_search_path" && cf_search_path=libdir])
9473
9474 case "x$cf_search_path" in
9475 (xlibdir)
9476         PKG_CONFIG_LIBDIR='${libdir}/pkgconfig'
9477         AC_MSG_RESULT($PKG_CONFIG_LIBDIR)
9478         cf_search_path=
9479         ;;
9480 (x)
9481         ;;
9482 (x/*\ *)
9483         PKG_CONFIG_LIBDIR=
9484         ;;
9485 (x/*)
9486         PKG_CONFIG_LIBDIR="$cf_search_path"
9487         AC_MSG_RESULT($PKG_CONFIG_LIBDIR)
9488         cf_search_path=
9489         ;;
9490 (xyes|xauto)
9491         AC_MSG_RESULT(auto)
9492         cf_search_path=
9493         # Look for the library directory using the same prefix as the executable
9494         AC_MSG_CHECKING(for search-list)
9495         if test "x$PKG_CONFIG" != xnone
9496         then
9497                 # works for pkg-config since version 0.24 (2009)
9498                 # works for pkgconf since version 0.8.3 (2012)
9499                 for cf_pkg_program in \
9500                         `echo "$PKG_CONFIG" | sed -e 's,^.*/,,'` \
9501                         pkg-config \
9502                         pkgconf
9503                 do
9504                         cf_search_path=`"$PKG_CONFIG" --variable=pc_path "$cf_pkg_program" 2>/dev/null | tr : ' '`
9505                         test -n "$cf_search_path" && break
9506                 done
9507
9508                 # works for pkg-config since import in 2005 of original 2001 HP code.
9509                 test -z "$cf_search_path" && \
9510                 cf_search_path=`
9511                 "$PKG_CONFIG" --debug --exists no-such-package 2>&1 | $AWK "\
9512 /^Scanning directory (#[1-9][0-9]* )?'.*'$/{ \
9513         sub(\"^[[^']]*'\",\"\"); \
9514         sub(\"'.*\",\"\"); \
9515         printf \" %s\", \\[$]0; } \
9516 { next; } \
9517 "`
9518         fi
9519
9520         AC_MSG_RESULT($cf_search_path)
9521         ;;
9522 (*)
9523         AC_MSG_ERROR(Unexpected option value: $cf_search_path)
9524         ;;
9525 esac
9526
9527 if test -n "$cf_search_path"
9528 then
9529         AC_MSG_CHECKING(for first directory)
9530         cf_pkg_config_path=none
9531         for cf_config in $cf_search_path
9532         do
9533                 if test -d "$cf_config"
9534                 then
9535                         cf_pkg_config_path=$cf_config
9536                         break
9537                 fi
9538         done
9539         AC_MSG_RESULT($cf_pkg_config_path)
9540
9541         if test "x$cf_pkg_config_path" != xnone ; then
9542                 # limit this to the first directory found
9543                 PKG_CONFIG_LIBDIR="$cf_pkg_config_path"
9544         fi
9545
9546         if test -z "$PKG_CONFIG_LIBDIR" && test -n "$cf_search_path"
9547         then
9548                 AC_MSG_CHECKING(for workaround)
9549                 if test "$prefix" = "NONE" ; then
9550                         cf_prefix="$ac_default_prefix"
9551                 else
9552                         cf_prefix="$prefix"
9553                 fi
9554                 eval cf_libdir=$libdir
9555                 cf_libdir=`echo "$cf_libdir" | sed -e "s,^NONE,$cf_prefix,"`
9556                 cf_backup=
9557                 for cf_config in $cf_search_path
9558                 do
9559                         case $cf_config in
9560                         $cf_libdir/pkgconfig)
9561                                 PKG_CONFIG_LIBDIR=$cf_libdir/pkgconfig
9562                                 break
9563                                 ;;
9564                         *)
9565                                 test -z "$cf_backup" && cf_backup=$cf_config
9566                                 ;;
9567                         esac
9568                 done
9569                 test -z "$PKG_CONFIG_LIBDIR" && PKG_CONFIG_LIBDIR=$cf_backup
9570                 AC_MSG_RESULT($PKG_CONFIG_LIBDIR)
9571         fi
9572 fi
9573
9574 AC_SUBST(PKG_CONFIG_LIBDIR)
9575 ])dnl
9576 dnl ---------------------------------------------------------------------------
9577 dnl CF_WITH_PTHREAD version: 7 updated: 2015/04/18 08:56:57
9578 dnl ---------------
9579 dnl Check for POSIX thread library.
9580 AC_DEFUN([CF_WITH_PTHREAD],
9581 [
9582 AC_MSG_CHECKING(if you want to link with the pthread library)
9583 AC_ARG_WITH(pthread,
9584         [  --with-pthread          use POSIX thread library],
9585         [with_pthread=$withval],
9586         [with_pthread=no])
9587 AC_MSG_RESULT($with_pthread)
9588
9589 if test "$with_pthread" != no ; then
9590         AC_CHECK_HEADER(pthread.h,[
9591         AC_DEFINE(HAVE_PTHREADS_H,1,[Define to 1 if we have pthreads.h header])
9592
9593         for cf_lib_pthread in pthread c_r
9594         do
9595             AC_MSG_CHECKING(if we can link with the $cf_lib_pthread library)
9596             cf_save_LIBS="$LIBS"
9597             CF_ADD_LIB($cf_lib_pthread)
9598             AC_TRY_LINK([
9599 #include <pthread.h>
9600 ],[
9601                 int rc = pthread_create(0,0,0,0);
9602                 int r2 = pthread_mutexattr_settype(0, 0);
9603 ],[with_pthread=yes],[with_pthread=no])
9604             LIBS="$cf_save_LIBS"
9605             AC_MSG_RESULT($with_pthread)
9606             test "$with_pthread" = yes && break
9607         done
9608
9609         if test "$with_pthread" = yes ; then
9610             CF_ADD_LIB($cf_lib_pthread)
9611             AC_DEFINE(HAVE_LIBPTHREADS,1,[Define to 1 if we have pthreads library])
9612         else
9613             AC_MSG_ERROR(Cannot link with pthread library)
9614         fi
9615         ])
9616 fi
9617 ])
9618 dnl ---------------------------------------------------------------------------
9619 dnl CF_WITH_REL_VERSION version: 1 updated: 2003/09/20 18:12:49
9620 dnl -------------------
9621 dnl Allow library's release-version to be overridden.  Generally this happens when a
9622 dnl packager has incremented the release-version past that used in the original package,
9623 dnl and wishes to keep doing this.
9624 dnl
9625 dnl $1 is the package name, if any, to derive corresponding {package}_MAJOR
9626 dnl and {package}_MINOR symbols
9627 dnl symbol.
9628 AC_DEFUN([CF_WITH_REL_VERSION],[
9629 test -z "$cf_cv_rel_version" && cf_cv_rel_version=0.0
9630 AC_ARG_WITH(rel-version,
9631 [  --with-rel-version=XXX  override derived release version],
9632 [AC_MSG_WARN(overriding release version $cf_cv_rel_version to $withval)
9633  cf_cv_rel_version=$withval])
9634 ifelse($1,,[
9635  CF_NUMBER_SYNTAX($cf_cv_rel_version,Release version)
9636 ],[
9637  $1_MAJOR=`echo "$cf_cv_rel_version" | sed -e 's/\..*//'`
9638  $1_MINOR=`echo "$cf_cv_rel_version" | sed -e 's/^[[^.]]*//' -e 's/^\.//' -e 's/\..*//'`
9639  CF_NUMBER_SYNTAX([$]$1_MAJOR,Release major-version)
9640  CF_NUMBER_SYNTAX([$]$1_MINOR,Release minor-version)
9641 ])
9642 ])dnl
9643 dnl ---------------------------------------------------------------------------
9644 dnl CF_WITH_SYSMOUSE version: 3 updated: 2012/10/06 17:56:13
9645 dnl ----------------
9646 dnl If we can compile with sysmouse, make it available unless it is not wanted.
9647 AC_DEFUN([CF_WITH_SYSMOUSE],[
9648 # not everyone has "test -c"
9649 if test -c /dev/sysmouse 2>/dev/null ; then
9650 AC_MSG_CHECKING(if you want to use sysmouse)
9651 AC_ARG_WITH(sysmouse,
9652         [  --with-sysmouse         use sysmouse (FreeBSD console)],
9653         [cf_with_sysmouse=$withval],
9654         [cf_with_sysmouse=maybe])
9655         if test "$cf_with_sysmouse" != no ; then
9656         AC_TRY_COMPILE([
9657 #include <osreldate.h>
9658 #if (__FreeBSD_version >= 400017)
9659 #include <sys/consio.h>
9660 #include <sys/fbio.h>
9661 #else
9662 #include <machine/console.h>
9663 #endif
9664 ],[
9665         struct mouse_info the_mouse;
9666         ioctl(0, CONS_MOUSECTL, &the_mouse);
9667 ],[cf_with_sysmouse=yes],[cf_with_sysmouse=no])
9668         fi
9669 AC_MSG_RESULT($cf_with_sysmouse)
9670 test "$cf_with_sysmouse" = yes && AC_DEFINE(USE_SYSMOUSE,1,[Define to 1 if we can/should use the sysmouse interface])
9671 fi
9672 ])dnl
9673 dnl ---------------------------------------------------------------------------
9674 dnl CF_WITH_SYSTYPE version: 1 updated: 2013/01/26 16:26:12
9675 dnl ---------------
9676 dnl For testing, override the derived host system-type which is used to decide
9677 dnl things such as the linker commands used to build shared libraries.  This is
9678 dnl normally chosen automatically based on the type of system which you are
9679 dnl building on.  We use it for testing the configure script.
9680 dnl
9681 dnl This is different from the --host option: it is used only for testing parts
9682 dnl of the configure script which would not be reachable with --host since that
9683 dnl relies on the build environment being real, rather than mocked up.
9684 AC_DEFUN([CF_WITH_SYSTYPE],[
9685 CF_CHECK_CACHE([AC_CANONICAL_SYSTEM])
9686 AC_ARG_WITH(system-type,
9687         [  --with-system-type=XXX  test: override derived host system-type],
9688 [AC_MSG_WARN(overriding system type to $withval)
9689         cf_cv_system_name=$withval
9690         host_os=$withval
9691 ])
9692 ])dnl
9693 dnl ---------------------------------------------------------------------------
9694 dnl CF_WITH_VALGRIND version: 1 updated: 2006/12/14 18:00:21
9695 dnl ----------------
9696 AC_DEFUN([CF_WITH_VALGRIND],[
9697 CF_NO_LEAKS_OPTION(valgrind,
9698         [  --with-valgrind         test: use valgrind],
9699         [USE_VALGRIND])
9700 ])dnl
9701 dnl ---------------------------------------------------------------------------
9702 dnl CF_WITH_VERSIONED_SYMS version: 10 updated: 2021/01/04 18:48:01
9703 dnl ----------------------
9704 dnl Use this when building shared library with ELF, to markup symbols with the
9705 dnl version identifier from the given input file.  Generally that identifier is
9706 dnl the same as the SONAME at which the symbol was first introduced.
9707 dnl
9708 dnl $1 = basename of the ".map" file (default $PACKAGE)
9709 AC_DEFUN([CF_WITH_VERSIONED_SYMS],
9710 [AC_REQUIRE([AC_PROG_FGREP])dnl
9711 AC_REQUIRE([AC_PROG_EGREP])dnl
9712
9713 AC_MSG_CHECKING(if versioned-symbols file should be used)
9714 AC_ARG_WITH(versioned-syms,
9715         [  --with-versioned-syms=X markup versioned symbols using ld],
9716         [with_versioned_syms=$withval],
9717         [with_versioned_syms=no])
9718 case "x$with_versioned_syms" in
9719 (xyes)
9720         with_versioned_syms='${top_srcdir}/package/ifelse($1,,${PACKAGE},[$1]).map'
9721         AC_SUBST(PACKAGE)
9722         ;;
9723 (xno)
9724         ;;
9725 (x/*)
9726         test -f "$with_versioned_syms" || AC_MSG_ERROR(expected a filename: $with_versioned_syms)
9727         ;;
9728 (*)
9729         test -f "$with_versioned_syms" || AC_MSG_ERROR(expected a filename: $with_versioned_syms)
9730         with_versioned_syms=`pwd`/"$with_versioned_syms"
9731         ;;
9732 esac
9733 AC_MSG_RESULT($with_versioned_syms)
9734
9735 RESULTING_SYMS=
9736 VERSIONED_SYMS=
9737 WILDCARD_SYMS=
9738
9739 if test "x$with_versioned_syms" != xno
9740 then
9741         RESULTING_SYMS=$with_versioned_syms
9742         case "x$MK_SHARED_LIB" in
9743         (*-Wl,*)
9744                 VERSIONED_SYMS="-Wl,--version-script,\${RESULTING_SYMS}"
9745                 MK_SHARED_LIB=`echo "$MK_SHARED_LIB" | sed -e "s%-Wl,%\\[$]{VERSIONED_SYMS} -Wl,%"`
9746                 CF_VERBOSE(MK_SHARED_LIB:  $MK_SHARED_LIB)
9747                 ;;
9748         (*-dy\ *)
9749                 VERSIONED_SYMS="-Wl,-M,\${RESULTING_SYMS}"
9750                 MK_SHARED_LIB=`echo "$MK_SHARED_LIB" | sed -e "s%-dy%\\[$]{VERSIONED_SYMS} -dy%"`
9751                 CF_VERBOSE(MK_SHARED_LIB:  $MK_SHARED_LIB)
9752                 ;;
9753         (*)
9754                 AC_MSG_WARN(this system does not support versioned-symbols)
9755                 ;;
9756         esac
9757
9758         # Linux ld can selectively override scope, e.g., of symbols beginning with
9759         # "_" by first declaring some as global, and then using a wildcard to
9760         # declare the others as local.  Some other loaders cannot do this.  Check
9761         # by constructing a (very) simple shared library and inspecting its
9762         # symbols.
9763         if test "x$VERSIONED_SYMS" != "x"
9764         then
9765                 AC_MSG_CHECKING(if wildcards can be used to selectively omit symbols)
9766                 WILDCARD_SYMS=no
9767
9768                 # make sources
9769                 rm -f conftest.*
9770
9771                 cat >conftest.ver <<EOF
9772 module_1.0 {
9773 global:
9774         globalf1;
9775 local:
9776         localf1;
9777 };
9778 module_2.0 {
9779 global:
9780         globalf2;
9781 local:
9782         localf2;
9783         _*;
9784 } module_1.0;
9785 submodule_1.0 {
9786 global:
9787         subglobalf1;
9788         _ismissing;
9789 local:
9790         sublocalf1;
9791 };
9792 submodule_2.0 {
9793 global:
9794         subglobalf2;
9795 local:
9796         sublocalf2;
9797         _*;
9798 } submodule_1.0;
9799 EOF
9800                 cat >conftest.$ac_ext <<EOF
9801 #line __oline__ "configure"
9802 int     _ismissing(void) { return 1; }
9803 int     _localf1(void) { return 1; }
9804 int     _localf2(void) { return 2; }
9805 int     globalf1(void) { return 1; }
9806 int     globalf2(void) { return 2; }
9807 int     _sublocalf1(void) { return 1; }
9808 int     _sublocalf2(void) { return 2; }
9809 int     subglobalf1(void) { return 1; }
9810 int     subglobalf2(void) { return 2; }
9811 EOF
9812                 cat >conftest.mk <<EOF
9813 CC=${CC}
9814 CFLAGS=${CFLAGS}
9815 CPPFLAGS=${CPPFLAGS}
9816 LDFLAGS=${LDFLAGS}
9817 LIBS=${LIBS}
9818 VERSIONED_SYMS=${VERSIONED_SYMS}
9819 RESULTING_SYMS=conftest.ver
9820 MK_SHARED_LIB=${MK_SHARED_LIB}
9821 conftest.so: conftest.$ac_cv_objext
9822                 \$(MK_SHARED_LIB) conftest.$ac_cv_objext
9823 EOF
9824
9825                 # compile source, make library
9826                 if make -f conftest.mk 2>&AC_FD_CC >/dev/null
9827                 then
9828                         # test for missing symbol in either Data or Text section
9829                         cf_missing="`nm -P conftest.so 2>&AC_FD_CC |${FGREP-fgrep} _ismissing | ${EGREP-egrep} '[[      ]][[DT]][[      ]]'`"
9830                         test -n "$cf_missing" && WILDCARD_SYMS=yes
9831                 fi
9832                 AC_MSG_RESULT($WILDCARD_SYMS)
9833                 rm -f conftest.*
9834         fi
9835 fi
9836 AC_SUBST(RESULTING_SYMS)
9837 AC_SUBST(VERSIONED_SYMS)
9838 AC_SUBST(WILDCARD_SYMS)
9839 ])dnl
9840 dnl ---------------------------------------------------------------------------
9841 dnl CF_WITH_X11_RGB version: 2 updated: 2019/12/31 08:53:54
9842 dnl ---------------
9843 dnl Handle configure option "--with-x11-rgb", setting these shell
9844 dnl variables:
9845 dnl
9846 dnl $RGB_PATH is the option value, used for finding the X11 rgb file.
9847 dnl $no_x11_rgb is a "#" (comment) if "--without-x11-rgb" is given.
9848 dnl
9849 dnl Most Linux's use this:
9850 dnl     /usr/share/X11/rgb.txt
9851 dnl Debian uses this:
9852 dnl     /etc/X11/rgb.txt
9853 dnl DragonFlyBSD ports uses this:
9854 dnl     /usr/pkg/lib/X11/rgb.txt
9855 dnl FreeBSD ports use these:
9856 dnl     /usr/local/lib/X11/rgb.txt
9857 dnl     /usr/local/share/X11/rgb.txt
9858 dnl Mandriva has these:
9859 dnl     /usr/lib/X11/rgb.txt
9860 dnl     /usr/lib64/X11/rgb.txt
9861 dnl NetBSD has these
9862 dnl     /usr/X11R7/lib/X11/rgb.txt
9863 dnl OpenSolaris uses
9864 dnl     32-bit:
9865 dnl     /usr/X11/etc/X11/rgb.txt
9866 dnl     /usr/X11/share/X11/rgb.txt
9867 dnl     /usr/X11/lib/X11/rgb.txt
9868 dnl OSX uses
9869 dnl             /opt/local/share/X11/rgb.txt (MacPorts)
9870 dnl             /opt/X11/share/X11/rgb.txt (non-ports)
9871 dnl     64-bit:
9872 dnl     /usr/X11/etc/X11/rgb.txt
9873 dnl     /usr/X11/share/X11/rgb.txt (perhaps)
9874 dnl     /usr/X11/lib/amd64/X11/rgb.txt
9875 dnl Solaris10 uses (in this order):
9876 dnl     /usr/openwin/lib/X11/rgb.txt
9877 dnl     /usr/X11/lib/X11/rgb.txt
9878 AC_DEFUN([CF_WITH_X11_RGB],[
9879 AC_MSG_CHECKING(for X11 rgb file)
9880 AC_ARG_WITH(x11-rgb,
9881         [  --with-x11-rgb=FILE   file containing X11 rgb information (EPREFIX/lib/X11/rgb.txt)],
9882         [RGB_PATH=$withval],
9883         [RGB_PATH=auto])
9884
9885 if test "x[$]RGB_PATH" = xauto
9886 then
9887         RGB_PATH='${exec_prefix}/lib/X11/rgb.txt'
9888         for cf_path in \
9889                 /opt/local/share/X11/rgb.txt \
9890                 /opt/X11/share/X11/rgb.txt \
9891                 /usr/share/X11/rgb.txt \
9892                 /usr/X11/share/X11/rgb.txt \
9893                 /usr/X11/lib/X11/rgb.txt \
9894                 /usr/lib/X11/rgb.txt \
9895                 /etc/X11/rgb.txt \
9896                 /usr/pkg/lib/X11/rgb.txt \
9897                 /usr/X11R7/lib/X11/rgb.txt \
9898                 /usr/X11R6/lib/X11/rgb.txt \
9899                 /usr/X11R5/lib/X11/rgb.txt \
9900                 /usr/X11R4/lib/X11/rgb.txt \
9901                 /usr/local/lib/X11/rgb.txt \
9902                 /usr/local/share/X11/rgb.txt \
9903                 /usr/lib64/X11/rgb.txt
9904         do
9905                 if test -f "$cf_path" ; then
9906                         RGB_PATH="$cf_path"
9907                         break
9908                 fi
9909         done
9910 else
9911         cf_path=$RGB_PATH
9912         CF_PATH_SYNTAX(cf_path)
9913 fi
9914
9915 AC_MSG_RESULT($RGB_PATH)
9916 AC_SUBST(RGB_PATH)
9917 AC_DEFINE_UNQUOTED(RGB_PATH,"$cf_path",[Define to the full pathname of rgb.txt])
9918
9919 no_x11_rgb=
9920 if test "$RGB_PATH" = no
9921 then
9922         no_x11_rgb="#"
9923 fi
9924 AC_SUBST(no_x11_rgb)
9925 ])dnl
9926 dnl ---------------------------------------------------------------------------
9927 dnl CF_XOPEN_SOURCE version: 64 updated: 2023/02/18 17:41:25
9928 dnl ---------------
9929 dnl Try to get _XOPEN_SOURCE defined properly that we can use POSIX functions,
9930 dnl or adapt to the vendor's definitions to get equivalent functionality,
9931 dnl without losing the common non-POSIX features.
9932 dnl
9933 dnl Parameters:
9934 dnl     $1 is the nominal value for _XOPEN_SOURCE
9935 dnl     $2 is the nominal value for _POSIX_C_SOURCE
9936 AC_DEFUN([CF_XOPEN_SOURCE],[
9937 AC_REQUIRE([AC_CANONICAL_HOST])
9938 AC_REQUIRE([CF_POSIX_VISIBLE])
9939
9940 if test "$cf_cv_posix_visible" = no; then
9941
9942 cf_XOPEN_SOURCE=ifelse([$1],,500,[$1])
9943 cf_POSIX_C_SOURCE=ifelse([$2],,199506L,[$2])
9944 cf_xopen_source=
9945
9946 case "$host_os" in
9947 (aix[[4-7]]*)
9948         cf_xopen_source="-D_ALL_SOURCE"
9949         ;;
9950 (darwin[[0-8]].*)
9951         cf_xopen_source="-D_APPLE_C_SOURCE"
9952         ;;
9953 (darwin*)
9954         cf_xopen_source="-D_DARWIN_C_SOURCE"
9955         cf_XOPEN_SOURCE=
9956         ;;
9957 (freebsd*|dragonfly*|midnightbsd*)
9958         # 5.x headers associate
9959         #       _XOPEN_SOURCE=600 with _POSIX_C_SOURCE=200112L
9960         #       _XOPEN_SOURCE=500 with _POSIX_C_SOURCE=199506L
9961         cf_POSIX_C_SOURCE=200112L
9962         cf_XOPEN_SOURCE=600
9963         cf_xopen_source="-D_BSD_TYPES -D__BSD_VISIBLE -D_POSIX_C_SOURCE=$cf_POSIX_C_SOURCE -D_XOPEN_SOURCE=$cf_XOPEN_SOURCE"
9964         ;;
9965 (hpux11*)
9966         cf_xopen_source="-D_HPUX_SOURCE -D_XOPEN_SOURCE=500"
9967         ;;
9968 (hpux*)
9969         cf_xopen_source="-D_HPUX_SOURCE"
9970         ;;
9971 (irix[[56]].*)
9972         cf_xopen_source="-D_SGI_SOURCE"
9973         cf_XOPEN_SOURCE=
9974         ;;
9975 (linux*gnu|linux*gnuabi64|linux*gnuabin32|linux*gnueabi|linux*gnueabihf|linux*gnux32|uclinux*|gnu*|mint*|k*bsd*-gnu|cygwin|msys)
9976         CF_GNU_SOURCE($cf_XOPEN_SOURCE)
9977         ;;
9978 (minix*)
9979         cf_xopen_source="-D_NETBSD_SOURCE" # POSIX.1-2001 features are ifdef'd with this...
9980         ;;
9981 (mirbsd*)
9982         # setting _XOPEN_SOURCE or _POSIX_SOURCE breaks <sys/select.h> and other headers which use u_int / u_short types
9983         cf_XOPEN_SOURCE=
9984         CF_POSIX_C_SOURCE($cf_POSIX_C_SOURCE)
9985         ;;
9986 (netbsd*)
9987         cf_xopen_source="-D_NETBSD_SOURCE" # setting _XOPEN_SOURCE breaks IPv6 for lynx on NetBSD 1.6, breaks xterm, is not needed for ncursesw
9988         ;;
9989 (openbsd[[6-9]]*)
9990         # OpenBSD 6.x has broken locale support, both compile-time and runtime.
9991         # see https://www.mail-archive.com/bugs@openbsd.org/msg13200.html
9992         # Abusing the conformance level is a workaround.
9993         AC_MSG_WARN(this system does not provide usable locale support)
9994         cf_xopen_source="-D_BSD_SOURCE"
9995         cf_XOPEN_SOURCE=700
9996         ;;
9997 (openbsd[[4-5]]*)
9998         # setting _XOPEN_SOURCE lower than 500 breaks g++ compile with wchar.h, needed for ncursesw
9999         cf_xopen_source="-D_BSD_SOURCE"
10000         cf_XOPEN_SOURCE=600
10001         ;;
10002 (openbsd*)
10003         # setting _XOPEN_SOURCE breaks xterm on OpenBSD 2.8, is not needed for ncursesw
10004         ;;
10005 (osf[[45]]*)
10006         cf_xopen_source="-D_OSF_SOURCE"
10007         ;;
10008 (nto-qnx*)
10009         cf_xopen_source="-D_QNX_SOURCE"
10010         ;;
10011 (sco*)
10012         # setting _XOPEN_SOURCE breaks Lynx on SCO Unix / OpenServer
10013         ;;
10014 (solaris2.*)
10015         cf_xopen_source="-D__EXTENSIONS__"
10016         cf_cv_xopen_source=broken
10017         ;;
10018 (sysv4.2uw2.*) # Novell/SCO UnixWare 2.x (tested on 2.1.2)
10019         cf_XOPEN_SOURCE=
10020         cf_POSIX_C_SOURCE=
10021         ;;
10022 (*)
10023         CF_TRY_XOPEN_SOURCE
10024         cf_save_xopen_cppflags="$CPPFLAGS"
10025         CF_POSIX_C_SOURCE($cf_POSIX_C_SOURCE)
10026         # Some of these niche implementations use copy/paste, double-check...
10027         if test "$cf_cv_xopen_source" != no ; then
10028                 CF_VERBOSE(checking if _POSIX_C_SOURCE inteferes)
10029                 AC_TRY_COMPILE(CF__XOPEN_SOURCE_HEAD,CF__XOPEN_SOURCE_BODY,,[
10030                         AC_MSG_WARN(_POSIX_C_SOURCE definition is not usable)
10031                         CPPFLAGS="$cf_save_xopen_cppflags"])
10032         fi
10033         ;;
10034 esac
10035
10036 if test -n "$cf_xopen_source" ; then
10037         CF_APPEND_CFLAGS($cf_xopen_source,true)
10038 fi
10039
10040 dnl In anything but the default case, we may have system-specific setting
10041 dnl which is still not guaranteed to provide all of the entrypoints that
10042 dnl _XOPEN_SOURCE would yield.
10043 if test -n "$cf_XOPEN_SOURCE" && test -z "$cf_cv_xopen_source" ; then
10044         AC_MSG_CHECKING(if _XOPEN_SOURCE really is set)
10045         AC_TRY_COMPILE([#include <stdlib.h>],[
10046 #ifndef _XOPEN_SOURCE
10047 #error _XOPEN_SOURCE is not defined
10048 #endif],
10049         [cf_XOPEN_SOURCE_set=yes],
10050         [cf_XOPEN_SOURCE_set=no])
10051         AC_MSG_RESULT($cf_XOPEN_SOURCE_set)
10052         if test "$cf_XOPEN_SOURCE_set" = yes
10053         then
10054                 AC_TRY_COMPILE([#include <stdlib.h>],[
10055 #if (_XOPEN_SOURCE - 0) < $cf_XOPEN_SOURCE
10056 #error (_XOPEN_SOURCE - 0) < $cf_XOPEN_SOURCE
10057 #endif],
10058                 [cf_XOPEN_SOURCE_set_ok=yes],
10059                 [cf_XOPEN_SOURCE_set_ok=no])
10060                 if test "$cf_XOPEN_SOURCE_set_ok" = no
10061                 then
10062                         AC_MSG_WARN(_XOPEN_SOURCE is lower than requested)
10063                 fi
10064         else
10065                 CF_TRY_XOPEN_SOURCE
10066         fi
10067 fi
10068 fi # cf_cv_posix_visible
10069 ])
10070 dnl ---------------------------------------------------------------------------
10071 dnl CF__SED_TRIMBLANKS version: 1 updated: 2021/01/02 09:31:20
10072 dnl ------------------
10073 dnl Trim something using sed, then trim extra whitespace
10074 dnl $1 = extra parameters, e.g., in CF_STRIP_G_OPT
10075 define([CF__SED_TRIMBLANKS],[sed ifelse($1,,,[$1] )-e 's%[[     ]]% %g' -e 's% [[ ]]*% %g' -e 's%^ %%' -e 's% [$]%%'])dnl
10076 dnl ---------------------------------------------------------------------------
10077 dnl CF__XOPEN_SOURCE_BODY version: 2 updated: 2023/02/18 17:41:25
10078 dnl ---------------------
10079 dnl body of test when test-compiling for _XOPEN_SOURCE check
10080 define([CF__XOPEN_SOURCE_BODY],
10081 [
10082 #ifndef _XOPEN_SOURCE
10083 #error _XOPEN_SOURCE is not defined
10084 #endif
10085 ])
10086 dnl ---------------------------------------------------------------------------
10087 dnl CF__XOPEN_SOURCE_HEAD version: 2 updated: 2023/02/18 17:41:25
10088 dnl ---------------------
10089 dnl headers to include when test-compiling for _XOPEN_SOURCE check
10090 define([CF__XOPEN_SOURCE_HEAD],
10091 [
10092 $ac_includes_default
10093 ])