aclocal.m4

   1 dnl***************************************************************************
   2 dnl Copyright 2018-2020,2021 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 1.997 2021/11/20 19:56:38 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: 6 updated: 2021/01/01 16:53:59
  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([#include <langinfo.h>],
  58         [char* cs = nl_langinfo(CODESET); (void)cs],
  59         am_cv_langinfo_codeset=yes,
  60         am_cv_langinfo_codeset=no)
  61         ])
  62         if test "$am_cv_langinfo_codeset" = yes; then
  63                 AC_DEFINE(HAVE_LANGINFO_CODESET, 1,
  64                 [Define if you have <langinfo.h> and nl_langinfo(CODESET).])
  65         fi
  66 ])dnl
  67 dnl ---------------------------------------------------------------------------
  68 dnl CF_ABI_DEFAULTS version: 2 updated: 2015/06/06 13:49:58
  69 dnl ---------------
  70 dnl Provide configure-script defaults for different ncurses ABIs.
  71 AC_DEFUN([CF_ABI_DEFAULTS],[
  72 AC_REQUIRE([CF_NCURSES_WITH_ABI_VERSION])
  73 case x$cf_cv_abi_version in
  74 (x[[6789]])
  75         cf_dft_ext_colors=yes
  76         cf_dft_ext_const=yes
  77         cf_dft_ext_mouse=yes
  78         cf_dft_ext_putwin=yes
  79         cf_dft_ext_spfuncs=yes
  80         cf_dft_filter_syms=yes
  81         cf_dft_chtype=uint32_t
  82         cf_dft_mmask_t=uint32_t
  83         cf_dft_interop=yes
  84         cf_dft_tparm_arg=intptr_t
  85         cf_dft_with_lp64=yes
  86         ;;
  87 (*)
  88         cf_dft_ext_colors=no
  89         cf_dft_ext_const=no
  90         cf_dft_ext_mouse=no
  91         cf_dft_ext_putwin=no
  92         cf_dft_ext_spfuncs=no
  93         cf_dft_filter_syms=no
  94         cf_dft_chtype=auto
  95         cf_dft_mmask_t=auto
  96         cf_dft_interop=no
  97         cf_dft_tparm_arg=long
  98         cf_dft_with_lp64=no
  99         ;;
 100 esac
 101 ])dnl
 102 dnl ---------------------------------------------------------------------------
 103 dnl CF_ACVERSION_CHECK version: 5 updated: 2014/06/04 19:11:49
 104 dnl ------------------
 105 dnl Conditionally generate script according to whether we're using a given autoconf.
 106 dnl
 107 dnl $1 = version to compare against
 108 dnl $2 = code to use if AC_ACVERSION is at least as high as $1.
 109 dnl $3 = code to use if AC_ACVERSION is older than $1.
 110 define([CF_ACVERSION_CHECK],
 111 [
 112 ifdef([AC_ACVERSION], ,[ifdef([AC_AUTOCONF_VERSION],[m4_copy([AC_AUTOCONF_VERSION],[AC_ACVERSION])],[m4_copy([m4_PACKAGE_VERSION],[AC_ACVERSION])])])dnl
 113 ifdef([m4_version_compare],
 114 [m4_if(m4_version_compare(m4_defn([AC_ACVERSION]), [$1]), -1, [$3], [$2])],
 115 [CF_ACVERSION_COMPARE(
 116 AC_PREREQ_CANON(AC_PREREQ_SPLIT([$1])),
 117 AC_PREREQ_CANON(AC_PREREQ_SPLIT(AC_ACVERSION)), AC_ACVERSION, [$2], [$3])])])dnl
 118 dnl ---------------------------------------------------------------------------
 119 dnl CF_ACVERSION_COMPARE version: 3 updated: 2012/10/03 18:39:53
 120 dnl --------------------
 121 dnl CF_ACVERSION_COMPARE(MAJOR1, MINOR1, TERNARY1,
 122 dnl                      MAJOR2, MINOR2, TERNARY2,
 123 dnl                      PRINTABLE2, not FOUND, FOUND)
 124 define([CF_ACVERSION_COMPARE],
 125 [ifelse(builtin([eval], [$2 < $5]), 1,
 126 [ifelse([$8], , ,[$8])],
 127 [ifelse([$9], , ,[$9])])])dnl
 128 dnl ---------------------------------------------------------------------------
 129 dnl CF_ADA_INCLUDE_DIRS version: 8 updated: 2013/10/14 04:24:07
 130 dnl -------------------
 131 dnl Construct the list of include-options for the C programs in the Ada95
 132 dnl binding.
 133 AC_DEFUN([CF_ADA_INCLUDE_DIRS],
 134 [
 135 ACPPFLAGS="-I. -I../include -I../../include $ACPPFLAGS"
 136 if test "$srcdir" != "."; then
 137         ACPPFLAGS="-I\${srcdir}/../../include $ACPPFLAGS"
 138 fi
 139 if test "$GCC" != yes; then
 140         ACPPFLAGS="$ACPPFLAGS -I\${includedir}"
 141 elif test "$includedir" != "/usr/include"; then
 142         if test "$includedir" = '${prefix}/include' ; then
 143                 if test x$prefix != x/usr ; then
 144                         ACPPFLAGS="$ACPPFLAGS -I\${includedir}"
 145                 fi
 146         else
 147                 ACPPFLAGS="$ACPPFLAGS -I\${includedir}"
 148         fi
 149 fi
 150 AC_SUBST(ACPPFLAGS)
 151 ])dnl
 152 dnl ---------------------------------------------------------------------------
 153 dnl CF_ADD_ADAFLAGS version: 1 updated: 2010/06/19 15:22:18
 154 dnl ---------------
 155 dnl Add to $ADAFLAGS, which is substituted into makefile and scripts.
 156 AC_DEFUN([CF_ADD_ADAFLAGS],[
 157         ADAFLAGS="$ADAFLAGS $1"
 158         AC_SUBST(ADAFLAGS)
 159 ])dnl
 160 dnl ---------------------------------------------------------------------------
 161 dnl CF_ADD_CFLAGS version: 15 updated: 2020/12/31 10:54:15
 162 dnl -------------
 163 dnl Copy non-preprocessor flags to $CFLAGS, preprocessor flags to $CPPFLAGS
 164 dnl $1 = flags to add
 165 dnl $2 = if given makes this macro verbose.
 166 dnl
 167 dnl Put any preprocessor definitions that use quoted strings in $EXTRA_CPPFLAGS,
 168 dnl to simplify use of $CPPFLAGS in compiler checks, etc., that are easily
 169 dnl confused by the quotes (which require backslashes to keep them usable).
 170 AC_DEFUN([CF_ADD_CFLAGS],
 171 [
 172 cf_fix_cppflags=no
 173 cf_new_cflags=
 174 cf_new_cppflags=
 175 cf_new_extra_cppflags=
 176
 177 for cf_add_cflags in $1
 178 do
 179 case "$cf_fix_cppflags" in
 180 (no)
 181         case "$cf_add_cflags" in
 182         (-undef|-nostdinc*|-I*|-D*|-U*|-E|-P|-C)
 183                 case "$cf_add_cflags" in
 184                 (-D*)
 185                         cf_tst_cflags=`echo "${cf_add_cflags}" |sed -e 's/^-D[[^=]]*='\''\"[[^"]]*//'`
 186
 187                         test "x${cf_add_cflags}" != "x${cf_tst_cflags}" \
 188                                 && test -z "${cf_tst_cflags}" \
 189                                 && cf_fix_cppflags=yes
 190
 191                         if test "$cf_fix_cppflags" = yes ; then
 192                                 CF_APPEND_TEXT(cf_new_extra_cppflags,$cf_add_cflags)
 193                                 continue
 194                         elif test "${cf_tst_cflags}" = "\"'" ; then
 195                                 CF_APPEND_TEXT(cf_new_extra_cppflags,$cf_add_cflags)
 196                                 continue
 197                         fi
 198                         ;;
 199                 esac
 200                 case "$CPPFLAGS" in
 201                 (*$cf_add_cflags)
 202                         ;;
 203                 (*)
 204                         case "$cf_add_cflags" in
 205                         (-D*)
 206                                 cf_tst_cppflags=`echo "x$cf_add_cflags" | sed -e 's/^...//' -e 's/=.*//'`
 207                                 CF_REMOVE_DEFINE(CPPFLAGS,$CPPFLAGS,$cf_tst_cppflags)
 208                                 ;;
 209                         esac
 210                         CF_APPEND_TEXT(cf_new_cppflags,$cf_add_cflags)
 211                         ;;
 212                 esac
 213                 ;;
 214         (*)
 215                 CF_APPEND_TEXT(cf_new_cflags,$cf_add_cflags)
 216                 ;;
 217         esac
 218         ;;
 219 (yes)
 220         CF_APPEND_TEXT(cf_new_extra_cppflags,$cf_add_cflags)
 221
 222         cf_tst_cflags=`echo "${cf_add_cflags}" |sed -e 's/^[[^"]]*"'\''//'`
 223
 224         test "x${cf_add_cflags}" != "x${cf_tst_cflags}" \
 225                 && test -z "${cf_tst_cflags}" \
 226                 && cf_fix_cppflags=no
 227         ;;
 228 esac
 229 done
 230
 231 if test -n "$cf_new_cflags" ; then
 232         ifelse([$2],,,[CF_VERBOSE(add to \$CFLAGS $cf_new_cflags)])
 233         CF_APPEND_TEXT(CFLAGS,$cf_new_cflags)
 234 fi
 235
 236 if test -n "$cf_new_cppflags" ; then
 237         ifelse([$2],,,[CF_VERBOSE(add to \$CPPFLAGS $cf_new_cppflags)])
 238         CF_APPEND_TEXT(CPPFLAGS,$cf_new_cppflags)
 239 fi
 240
 241 if test -n "$cf_new_extra_cppflags" ; then
 242         ifelse([$2],,,[CF_VERBOSE(add to \$EXTRA_CPPFLAGS $cf_new_extra_cppflags)])
 243         CF_APPEND_TEXT(EXTRA_CPPFLAGS,$cf_new_extra_cppflags)
 244 fi
 245
 246 AC_SUBST(EXTRA_CPPFLAGS)
 247
 248 ])dnl
 249 dnl ---------------------------------------------------------------------------
 250 dnl CF_ADD_CXXFLAGS version: 1 updated: 2020/04/04 16:16:13
 251 dnl ---------------
 252 dnl Copy non-preprocessor flags to $CXXFLAGS, preprocessor flags to $CPPFLAGS
 253 dnl The second parameter if given makes this macro verbose.
 254 dnl
 255 dnl Put any preprocessor definitions that use quoted strings in $EXTRA_CPPFLAGS,
 256 dnl to simplify use of $CPPFLAGS in compiler checks, etc., that are easily
 257 dnl confused by the quotes (which require backslashes to keep them usable).
 258 AC_DEFUN([CF_ADD_CXXFLAGS],
 259 [
 260 cf_save_CXXFLAGS="$CFLAGS"
 261 CFLAGS="$CXXFLAGS"
 262 CF_ADD_CFLAGS($1 ifelse($2,,,[,$2]))
 263 CXXFLAGS="$CFLAGS"
 264 CFLAGS="$cf_save_CXXFLAGS"
 265 ])dnl
 266 dnl ---------------------------------------------------------------------------
 267 dnl CF_ADD_INCDIR version: 17 updated: 2021/09/04 06:35:04
 268 dnl -------------
 269 dnl Add an include-directory to $CPPFLAGS.  Don't add /usr/include, since it is
 270 dnl redundant.  We don't normally need to add -I/usr/local/include for gcc,
 271 dnl but old versions (and some misinstalled ones) need that.  To make things
 272 dnl worse, gcc 3.x may give error messages if -I/usr/local/include is added to
 273 dnl the include-path).
 274 AC_DEFUN([CF_ADD_INCDIR],
 275 [
 276 if test -n "$1" ; then
 277   for cf_add_incdir in $1
 278   do
 279         while test "$cf_add_incdir" != /usr/include
 280         do
 281           if test -d "$cf_add_incdir"
 282           then
 283                 cf_have_incdir=no
 284                 if test -n "$CFLAGS$CPPFLAGS" ; then
 285                   # a loop is needed to ensure we can add subdirs of existing dirs
 286                   for cf_test_incdir in $CFLAGS $CPPFLAGS ; do
 287                         if test ".$cf_test_incdir" = ".-I$cf_add_incdir" ; then
 288                           cf_have_incdir=yes; break
 289                         fi
 290                   done
 291                 fi
 292
 293                 if test "$cf_have_incdir" = no ; then
 294                   if test "$cf_add_incdir" = /usr/local/include ; then
 295                         if test "$GCC" = yes
 296                         then
 297                           cf_save_CPPFLAGS=$CPPFLAGS
 298                           CF_APPEND_TEXT(CPPFLAGS,-I$cf_add_incdir)
 299                           AC_TRY_COMPILE([#include <stdio.h>],
 300                                   [printf("Hello")],
 301                                   [],
 302                                   [cf_have_incdir=yes])
 303                           CPPFLAGS=$cf_save_CPPFLAGS
 304                         fi
 305                   fi
 306                 fi
 307
 308                 if test "$cf_have_incdir" = no ; then
 309                   CF_VERBOSE(adding $cf_add_incdir to include-path)
 310                   ifelse([$2],,CPPFLAGS,[$2])="$ifelse([$2],,CPPFLAGS,[$2]) -I$cf_add_incdir"
 311
 312                   cf_top_incdir=`echo "$cf_add_incdir" | sed -e 's%/include/.*$%/include%'`
 313                   test "$cf_top_incdir" = "$cf_add_incdir" && break
 314                   cf_add_incdir="$cf_top_incdir"
 315                 else
 316                   break
 317                 fi
 318           else
 319                 break
 320           fi
 321         done
 322   done
 323 fi
 324 ])dnl
 325 dnl ---------------------------------------------------------------------------
 326 dnl CF_ADD_LIB version: 2 updated: 2010/06/02 05:03:05
 327 dnl ----------
 328 dnl Add a library, used to enforce consistency.
 329 dnl
 330 dnl $1 = library to add, without the "-l"
 331 dnl $2 = variable to update (default $LIBS)
 332 AC_DEFUN([CF_ADD_LIB],[CF_ADD_LIBS(-l$1,ifelse($2,,LIBS,[$2]))])dnl
 333 dnl ---------------------------------------------------------------------------
 334 dnl CF_ADD_LIBDIR version: 11 updated: 2020/12/31 20:19:42
 335 dnl -------------
 336 dnl     Adds to the library-path
 337 dnl
 338 dnl     Some machines have trouble with multiple -L options.
 339 dnl
 340 dnl $1 is the (list of) directory(s) to add
 341 dnl $2 is the optional name of the variable to update (default LDFLAGS)
 342 dnl
 343 AC_DEFUN([CF_ADD_LIBDIR],
 344 [
 345 if test -n "$1" ; then
 346         for cf_add_libdir in $1
 347         do
 348                 if test "$cf_add_libdir" = /usr/lib ; then
 349                         :
 350                 elif test -d "$cf_add_libdir"
 351                 then
 352                         cf_have_libdir=no
 353                         if test -n "$LDFLAGS$LIBS" ; then
 354                                 # a loop is needed to ensure we can add subdirs of existing dirs
 355                                 for cf_test_libdir in $LDFLAGS $LIBS ; do
 356                                         if test ".$cf_test_libdir" = ".-L$cf_add_libdir" ; then
 357                                                 cf_have_libdir=yes; break
 358                                         fi
 359                                 done
 360                         fi
 361                         if test "$cf_have_libdir" = no ; then
 362                                 CF_VERBOSE(adding $cf_add_libdir to library-path)
 363                                 ifelse([$2],,LDFLAGS,[$2])="-L$cf_add_libdir $ifelse([$2],,LDFLAGS,[$2])"
 364                         fi
 365                 fi
 366         done
 367 fi
 368 ])dnl
 369 dnl ---------------------------------------------------------------------------
 370 dnl CF_ADD_LIBS version: 3 updated: 2019/11/02 16:47:33
 371 dnl -----------
 372 dnl Add one or more libraries, used to enforce consistency.  Libraries are
 373 dnl prepended to an existing list, since their dependencies are assumed to
 374 dnl already exist in the list.
 375 dnl
 376 dnl $1 = libraries to add, with the "-l", etc.
 377 dnl $2 = variable to update (default $LIBS)
 378 AC_DEFUN([CF_ADD_LIBS],[
 379 cf_add_libs="[$]ifelse($2,,LIBS,[$2])"
 380 # reverse order
 381 cf_add_0lib=
 382 for cf_add_1lib in $1; do cf_add_0lib="$cf_add_1lib $cf_add_0lib"; done
 383 # filter duplicates
 384 for cf_add_1lib in $cf_add_0lib; do
 385         for cf_add_2lib in $cf_add_libs; do
 386                 if test "x$cf_add_1lib" = "x$cf_add_2lib"; then
 387                         cf_add_1lib=
 388                         break
 389                 fi
 390         done
 391         test -n "$cf_add_1lib" && cf_add_libs="$cf_add_1lib $cf_add_libs"
 392 done
 393 ifelse($2,,LIBS,[$2])="$cf_add_libs"
 394 ])dnl
 395 dnl ---------------------------------------------------------------------------
 396 dnl CF_ADD_SUBDIR_PATH version: 5 updated: 2020/12/31 20:19:42
 397 dnl ------------------
 398 dnl Append to a search-list for a nonstandard header/lib-file
 399 dnl     $1 = the variable to return as result
 400 dnl     $2 = the package name
 401 dnl     $3 = the subdirectory, e.g., bin, include or lib
 402 dnl $4 = the directory under which we will test for subdirectories
 403 dnl $5 = a directory that we do not want $4 to match
 404 AC_DEFUN([CF_ADD_SUBDIR_PATH],
 405 [
 406 test "x$4" != "x$5" && \
 407 test -d "$4" && \
 408 ifelse([$5],NONE,,[{ test -z "$5" || test "x$5" = xNONE || test "x$4" != "x$5"; } &&]) {
 409         test -n "$verbose" && echo "    ... testing for $3-directories under $4"
 410         test -d "$4/$3" &&          $1="[$]$1 $4/$3"
 411         test -d "$4/$3/$2" &&       $1="[$]$1 $4/$3/$2"
 412         test -d "$4/$3/$2/$3" &&    $1="[$]$1 $4/$3/$2/$3"
 413         test -d "$4/$2/$3" &&       $1="[$]$1 $4/$2/$3"
 414         test -d "$4/$2/$3/$2" &&    $1="[$]$1 $4/$2/$3/$2"
 415 }
 416 ])dnl
 417 dnl ---------------------------------------------------------------------------
 418 dnl CF_APPEND_CFLAGS version: 3 updated: 2021/09/05 17:25:40
 419 dnl ----------------
 420 dnl Use CF_ADD_CFLAGS after first checking for potential redefinitions.
 421 dnl $1 = flags to add
 422 dnl $2 = if given makes this macro verbose.
 423 define([CF_APPEND_CFLAGS],
 424 [
 425 for cf_add_cflags in $1
 426 do
 427         case "x$cf_add_cflags" in
 428         (x-[[DU]]*)
 429                 CF_REMOVE_CFLAGS($cf_add_cflags,CFLAGS,[$2])
 430                 CF_REMOVE_CFLAGS($cf_add_cflags,CPPFLAGS,[$2])
 431                 ;;
 432         esac
 433         CF_ADD_CFLAGS([$cf_add_cflags],[$2])
 434 done
 435 ])dnl
 436 dnl ---------------------------------------------------------------------------
 437 dnl CF_APPEND_TEXT version: 1 updated: 2017/02/25 18:58:55
 438 dnl --------------
 439 dnl use this macro for appending text without introducing an extra blank at
 440 dnl the beginning
 441 define([CF_APPEND_TEXT],
 442 [
 443         test -n "[$]$1" && $1="[$]$1 "
 444         $1="[$]{$1}$2"
 445 ])dnl
 446 dnl ---------------------------------------------------------------------------
 447 dnl CF_ARG_DISABLE version: 3 updated: 1999/03/30 17:24:31
 448 dnl --------------
 449 dnl Allow user to disable a normally-on option.
 450 AC_DEFUN([CF_ARG_DISABLE],
 451 [CF_ARG_OPTION($1,[$2],[$3],[$4],yes)])dnl
 452 dnl ---------------------------------------------------------------------------
 453 dnl CF_ARG_ENABLE version: 3 updated: 1999/03/30 17:24:31
 454 dnl -------------
 455 dnl Allow user to enable a normally-off option.
 456 AC_DEFUN([CF_ARG_ENABLE],
 457 [CF_ARG_OPTION($1,[$2],[$3],[$4],no)])dnl
 458 dnl ---------------------------------------------------------------------------
 459 dnl CF_ARG_OPTION version: 5 updated: 2015/05/10 19:52:14
 460 dnl -------------
 461 dnl Restricted form of AC_ARG_ENABLE that ensures user doesn't give bogus
 462 dnl values.
 463 dnl
 464 dnl Parameters:
 465 dnl $1 = option name
 466 dnl $2 = help-string
 467 dnl $3 = action to perform if option is not default
 468 dnl $4 = action if perform if option is default
 469 dnl $5 = default option value (either 'yes' or 'no')
 470 AC_DEFUN([CF_ARG_OPTION],
 471 [AC_ARG_ENABLE([$1],[$2],[test "$enableval" != ifelse([$5],no,yes,no) && enableval=ifelse([$5],no,no,yes)
 472         if test "$enableval" != "$5" ; then
 473 ifelse([$3],,[    :]dnl
 474 ,[    $3]) ifelse([$4],,,[
 475         else
 476                 $4])
 477         fi],[enableval=$5 ifelse([$4],,,[
 478         $4
 479 ])dnl
 480 ])])dnl
 481 dnl ---------------------------------------------------------------------------
 482 dnl CF_AR_FLAGS version: 9 updated: 2021/01/01 13:31:04
 483 dnl -----------
 484 dnl Check for suitable "ar" (archiver) options for updating an archive.
 485 dnl
 486 dnl In particular, handle some obsolete cases where the "-" might be omitted,
 487 dnl as well as a workaround for breakage of make's archive rules by the GNU
 488 dnl binutils "ar" program.
 489 AC_DEFUN([CF_AR_FLAGS],[
 490 AC_REQUIRE([CF_PROG_AR])
 491
 492 AC_CACHE_CHECK(for options to update archives, cf_cv_ar_flags,[
 493         case "$cf_cv_system_name" in
 494         (*-msvc*)
 495                 cf_cv_ar_flags=''
 496                 cat >mk_static_lib.sh <<-EOF
 497                 #!$SHELL
 498                 MSVC_BIN="[$]AR"
 499                 out="\[$]1"
 500                 shift
 501                 exec \[$]MSVC_BIN -out:"\[$]out" \[$]@
 502                 EOF
 503                 chmod +x mk_static_lib.sh
 504                 AR=`pwd`/mk_static_lib.sh
 505                 ;;
 506         (*)
 507                 cf_cv_ar_flags=unknown
 508                 for cf_ar_flags in -curvU -curv curv -crv crv -cqv cqv -rv rv
 509                 do
 510
 511                         # check if $ARFLAGS already contains this choice
 512                         if test "x$ARFLAGS" != "x" ; then
 513                                 cf_check_ar_flags=`echo "x$ARFLAGS" | sed -e "s/$cf_ar_flags\$//" -e "s/$cf_ar_flags / /"`
 514                                 if test "x$ARFLAGS" != "$cf_check_ar_flags" ; then
 515                                         cf_cv_ar_flags=
 516                                         break
 517                                 fi
 518                         fi
 519
 520                         rm -f "conftest.$ac_cv_objext"
 521                         rm -f conftest.a
 522
 523                         cat >"conftest.$ac_ext" <<EOF
 524 #line __oline__ "configure"
 525 int     testdata[[3]] = { 123, 456, 789 };
 526 EOF
 527                         if AC_TRY_EVAL(ac_compile) ; then
 528                                 echo "$AR $ARFLAGS $cf_ar_flags conftest.a conftest.$ac_cv_objext" >&AC_FD_CC
 529                                 $AR $ARFLAGS "$cf_ar_flags" conftest.a "conftest.$ac_cv_objext" 2>&AC_FD_CC 1>/dev/null
 530                                 if test -f conftest.a ; then
 531                                         cf_cv_ar_flags="$cf_ar_flags"
 532                                         break
 533                                 fi
 534                         else
 535                                 CF_VERBOSE(cannot compile test-program)
 536                                 break
 537                         fi
 538                 done
 539                 rm -f conftest.a "conftest.$ac_ext" "conftest.$ac_cv_objext"
 540                 ;;
 541         esac
 542 ])
 543
 544 if test -n "$ARFLAGS" ; then
 545         if test -n "$cf_cv_ar_flags" ; then
 546                 ARFLAGS="$ARFLAGS $cf_cv_ar_flags"
 547         fi
 548 else
 549         ARFLAGS=$cf_cv_ar_flags
 550 fi
 551
 552 AC_SUBST(ARFLAGS)
 553 ])
 554 dnl ---------------------------------------------------------------------------
 555 dnl CF_AWK_BIG_PRINTF version: 5 updated: 2015/04/17 21:13:04
 556 dnl -----------------
 557 dnl Check if awk can handle big strings using printf.  Some older versions of
 558 dnl awk choke on large strings passed via "%s".
 559 dnl
 560 dnl $1 = desired string size
 561 dnl $2 = variable to set with result
 562 AC_DEFUN([CF_AWK_BIG_PRINTF],
 563 [
 564         case x$AWK in
 565         (x)
 566                 eval $2=no
 567                 ;;
 568         (*)
 569                 if ( ${AWK} 'BEGIN { xx = "x"; while (length(xx) < $1) { xx = xx "x"; }; printf("%s\n", xx); }' 2>/dev/null \
 570                         | $AWK '{ printf "%d\n", length([$]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
 571                         eval $2=yes
 572                 else
 573                         eval $2=no
 574                 fi
 575                 ;;
 576         esac
 577 ])dnl
 578 dnl ---------------------------------------------------------------------------
 579 dnl CF_BOOL_DECL version: 8 updated: 2004/01/30 15:51:18
 580 dnl ------------
 581 dnl Test if 'bool' is a builtin type in the configured C++ compiler.  Some
 582 dnl older compilers (e.g., gcc 2.5.8) don't support 'bool' directly; gcc
 583 dnl 2.6.3 does, in anticipation of the ANSI C++ standard.
 584 dnl
 585 dnl Treat the configuration-variable specially here, since we're directly
 586 dnl substituting its value (i.e., 1/0).
 587 dnl
 588 dnl $1 is the shell variable to store the result in, if not $cv_cv_builtin_bool
 589 AC_DEFUN([CF_BOOL_DECL],
 590 [
 591 AC_MSG_CHECKING(if we should include stdbool.h)
 592
 593 AC_CACHE_VAL(cf_cv_header_stdbool_h,[
 594         AC_TRY_COMPILE([],[bool foo = false],
 595                 [cf_cv_header_stdbool_h=0],
 596                 [AC_TRY_COMPILE([
 597 #ifndef __BEOS__
 598 #include <stdbool.h>
 599 #endif
 600 ],[bool foo = false],
 601                         [cf_cv_header_stdbool_h=1],
 602                         [cf_cv_header_stdbool_h=0])])])
 603
 604 if test "$cf_cv_header_stdbool_h" = 1
 605 then    AC_MSG_RESULT(yes)
 606 else    AC_MSG_RESULT(no)
 607 fi
 608
 609 AC_MSG_CHECKING([for builtin bool type])
 610
 611 AC_CACHE_VAL(ifelse($1,,cf_cv_builtin_bool,[$1]),[
 612         AC_TRY_COMPILE([
 613 #include <stdio.h>
 614 #include <sys/types.h>
 615 ],[bool x = false],
 616                 [ifelse($1,,cf_cv_builtin_bool,[$1])=1],
 617                 [ifelse($1,,cf_cv_builtin_bool,[$1])=0])
 618         ])
 619
 620 if test "$ifelse($1,,cf_cv_builtin_bool,[$1])" = 1
 621 then    AC_MSG_RESULT(yes)
 622 else    AC_MSG_RESULT(no)
 623 fi
 624 ])dnl
 625 dnl ---------------------------------------------------------------------------
 626 dnl CF_BOOL_SIZE version: 18 updated: 2021/09/04 06:35:04
 627 dnl ------------
 628 dnl Test for the size of 'bool' in the configured C++ compiler (e.g., a type).
 629 dnl Don't bother looking for bool.h, since it has been deprecated.
 630 dnl
 631 dnl If the current compiler is C rather than C++, we get the bool definition
 632 dnl from <stdbool.h>.
 633 AC_DEFUN([CF_BOOL_SIZE],
 634 [
 635 AC_CHECK_SIZEOF(bool,,[
 636 #include <stdlib.h>
 637 #include <stdio.h>
 638
 639 #if defined(__cplusplus)
 640
 641 #ifdef HAVE_GXX_BUILTIN_H
 642 #include <g++/builtin.h>
 643 #elif HAVE_GPP_BUILTIN_H
 644 #include <gpp/builtin.h>
 645 #elif HAVE_BUILTIN_H
 646 #include <builtin.h>
 647 #endif
 648
 649 #else
 650
 651 #if $cf_cv_header_stdbool_h
 652 #include <stdbool.h>
 653 #endif
 654
 655 #endif
 656 ])
 657
 658 AC_CACHE_CHECK(for type of bool, cf_cv_type_of_bool,[
 659         rm -f cf_test.out
 660         AC_TRY_RUN([
 661 #include <stdlib.h>
 662 #include <stdio.h>
 663
 664 #if defined(__cplusplus)
 665
 666 #ifdef HAVE_GXX_BUILTIN_H
 667 #include <g++/builtin.h>
 668 #elif HAVE_GPP_BUILTIN_H
 669 #include <gpp/builtin.h>
 670 #elif HAVE_BUILTIN_H
 671 #include <builtin.h>
 672 #endif
 673
 674 #else
 675
 676 #if $cf_cv_header_stdbool_h
 677 #include <stdbool.h>
 678 #endif
 679
 680 #endif
 681
 682 int main(void)
 683 {
 684         FILE *fp = fopen("cf_test.out", "w");
 685         if (fp != 0) {
 686                 bool x = true;
 687                 if ((bool)(-x) >= 0)
 688                         fputs("unsigned ", fp);
 689                 if (sizeof(x) == sizeof(int))       fputs("int",  fp);
 690                 else if (sizeof(x) == sizeof(char)) fputs("char", fp);
 691                 else if (sizeof(x) == sizeof(short))fputs("short",fp);
 692                 else if (sizeof(x) == sizeof(long)) fputs("long", fp);
 693                 fclose(fp);
 694         }
 695         ${cf_cv_main_return:-return}(0);
 696 }
 697                 ],
 698                 [cf_cv_type_of_bool=`cat cf_test.out`
 699                  if test -z "$cf_cv_type_of_bool"; then
 700                    cf_cv_type_of_bool=unknown
 701                  fi],
 702                 [cf_cv_type_of_bool=unknown],
 703                 [
 704                 case x$ac_cv_sizeof_bool in
 705                 (x1) cf_cv_type_of_bool="unsigned char";;
 706                 (x2) cf_cv_type_of_bool="unsigned short";;
 707                 (x4) cf_cv_type_of_bool="unsigned int";;
 708                 (x8) cf_cv_type_of_bool="unsigned long";;
 709                 (*)  cf_cv_type_of_bool=unknown;;
 710                 esac
 711                 ])
 712         rm -f cf_test.out
 713 ])
 714
 715 if test "$cf_cv_type_of_bool" = unknown ; then
 716         case .$NCURSES_BOOL in
 717         (.auto|.) NCURSES_BOOL=unsigned;;
 718         esac
 719         AC_MSG_WARN(Assuming $NCURSES_BOOL for type of bool)
 720         cf_cv_type_of_bool=$NCURSES_BOOL
 721 fi
 722 ])dnl
 723 dnl ---------------------------------------------------------------------------
 724 dnl CF_BUILD_CC version: 9 updated: 2021/01/02 09:31:20
 725 dnl -----------
 726 dnl If we're cross-compiling, allow the user to override the tools and their
 727 dnl options.  The configure script is oriented toward identifying the host
 728 dnl compiler, etc., but we need a build compiler to generate parts of the
 729 dnl source.
 730 dnl
 731 dnl $1 = default for $CPPFLAGS
 732 dnl $2 = default for $LIBS
 733 AC_DEFUN([CF_BUILD_CC],[
 734 CF_ACVERSION_CHECK(2.52,,
 735         [AC_REQUIRE([CF_PROG_EXT])])
 736 if test "$cross_compiling" = yes ; then
 737
 738         # defaults that we might want to override
 739         : ${BUILD_CFLAGS:=''}
 740         : ${BUILD_CPPFLAGS:='ifelse([$1],,,[$1])'}
 741         : ${BUILD_LDFLAGS:=''}
 742         : ${BUILD_LIBS:='ifelse([$2],,,[$2])'}
 743         : ${BUILD_EXEEXT:='$x'}
 744         : ${BUILD_OBJEXT:='o'}
 745
 746         AC_ARG_WITH(build-cc,
 747                 [  --with-build-cc=XXX     the build C compiler ($BUILD_CC)],
 748                 [BUILD_CC="$withval"],
 749                 [AC_CHECK_PROGS(BUILD_CC, [gcc clang c99 c89 cc cl],none)])
 750         AC_MSG_CHECKING(for native build C compiler)
 751         AC_MSG_RESULT($BUILD_CC)
 752
 753         AC_MSG_CHECKING(for native build C preprocessor)
 754         AC_ARG_WITH(build-cpp,
 755                 [  --with-build-cpp=XXX    the build C preprocessor ($BUILD_CPP)],
 756                 [BUILD_CPP="$withval"],
 757                 [BUILD_CPP='${BUILD_CC} -E'])
 758         AC_MSG_RESULT($BUILD_CPP)
 759
 760         AC_MSG_CHECKING(for native build C flags)
 761         AC_ARG_WITH(build-cflags,
 762                 [  --with-build-cflags=XXX the build C compiler-flags ($BUILD_CFLAGS)],
 763                 [BUILD_CFLAGS="$withval"])
 764         AC_MSG_RESULT($BUILD_CFLAGS)
 765
 766         AC_MSG_CHECKING(for native build C preprocessor-flags)
 767         AC_ARG_WITH(build-cppflags,
 768                 [  --with-build-cppflags=XXX the build C preprocessor-flags ($BUILD_CPPFLAGS)],
 769                 [BUILD_CPPFLAGS="$withval"])
 770         AC_MSG_RESULT($BUILD_CPPFLAGS)
 771
 772         AC_MSG_CHECKING(for native build linker-flags)
 773         AC_ARG_WITH(build-ldflags,
 774                 [  --with-build-ldflags=XXX the build linker-flags ($BUILD_LDFLAGS)],
 775                 [BUILD_LDFLAGS="$withval"])
 776         AC_MSG_RESULT($BUILD_LDFLAGS)
 777
 778         AC_MSG_CHECKING(for native build linker-libraries)
 779         AC_ARG_WITH(build-libs,
 780                 [  --with-build-libs=XXX   the build libraries (${BUILD_LIBS})],
 781                 [BUILD_LIBS="$withval"])
 782         AC_MSG_RESULT($BUILD_LIBS)
 783
 784         # this assumes we're on Unix.
 785         BUILD_EXEEXT=
 786         BUILD_OBJEXT=o
 787
 788         : ${BUILD_CC:='${CC}'}
 789
 790         if { test "$BUILD_CC" = "$CC" || test "$BUILD_CC" = '${CC}'; } ; then
 791                 AC_MSG_ERROR([Cross-build requires two compilers.
 792 Use --with-build-cc to specify the native compiler.])
 793         fi
 794
 795 else
 796         : ${BUILD_CC:='${CC}'}
 797         : ${BUILD_CPP:='${CPP}'}
 798         : ${BUILD_CFLAGS:='${CFLAGS}'}
 799         : ${BUILD_CPPFLAGS:='${CPPFLAGS}'}
 800         : ${BUILD_LDFLAGS:='${LDFLAGS}'}
 801         : ${BUILD_LIBS:='${LIBS}'}
 802         : ${BUILD_EXEEXT:='$x'}
 803         : ${BUILD_OBJEXT:='o'}
 804 fi
 805
 806 AC_SUBST(BUILD_CC)
 807 AC_SUBST(BUILD_CPP)
 808 AC_SUBST(BUILD_CFLAGS)
 809 AC_SUBST(BUILD_CPPFLAGS)
 810 AC_SUBST(BUILD_LDFLAGS)
 811 AC_SUBST(BUILD_LIBS)
 812 AC_SUBST(BUILD_EXEEXT)
 813 AC_SUBST(BUILD_OBJEXT)
 814 ])dnl
 815 dnl ---------------------------------------------------------------------------
 816 dnl CF_C11_NORETURN version: 3 updated: 2021/03/28 11:36:23
 817 dnl ---------------
 818 AC_DEFUN([CF_C11_NORETURN],
 819 [
 820 AC_MSG_CHECKING(if you want to use C11 _Noreturn feature)
 821 CF_ARG_ENABLE(stdnoreturn,
 822         [  --enable-stdnoreturn    enable C11 _Noreturn feature for diagnostics],
 823         [enable_stdnoreturn=yes],
 824         [enable_stdnoreturn=no])
 825 AC_MSG_RESULT($enable_stdnoreturn)
 826
 827 if test $enable_stdnoreturn = yes; then
 828 AC_CACHE_CHECK([for C11 _Noreturn feature], cf_cv_c11_noreturn,
 829         [AC_TRY_COMPILE([
 830 #include <stdio.h>
 831 #include <stdlib.h>
 832 #include <stdnoreturn.h>
 833 static _Noreturn void giveup(void) { exit(0); }
 834         ],
 835         [if (feof(stdin)) giveup()],
 836         cf_cv_c11_noreturn=yes,
 837         cf_cv_c11_noreturn=no)
 838         ])
 839 else
 840         cf_cv_c11_noreturn=no,
 841 fi
 842
 843 if test "$cf_cv_c11_noreturn" = yes; then
 844         AC_DEFINE(HAVE_STDNORETURN_H, 1,[Define if <stdnoreturn.h> header is available and working])
 845         AC_DEFINE_UNQUOTED(STDC_NORETURN,_Noreturn,[Define if C11 _Noreturn keyword is supported])
 846         HAVE_STDNORETURN_H=1
 847 else
 848         HAVE_STDNORETURN_H=0
 849 fi
 850
 851 AC_SUBST(HAVE_STDNORETURN_H)
 852 AC_SUBST(STDC_NORETURN)
 853 ])dnl
 854 dnl ---------------------------------------------------------------------------
 855 dnl CF_CC_ENV_FLAGS version: 10 updated: 2020/12/31 18:40:20
 856 dnl ---------------
 857 dnl Check for user's environment-breakage by stuffing CFLAGS/CPPFLAGS content
 858 dnl into CC.  This will not help with broken scripts that wrap the compiler
 859 dnl with options, but eliminates a more common category of user confusion.
 860 dnl
 861 dnl In particular, it addresses the problem of being able to run the C
 862 dnl preprocessor in a consistent manner.
 863 dnl
 864 dnl Caveat: this also disallows blanks in the pathname for the compiler, but
 865 dnl the nuisance of having inconsistent settings for compiler and preprocessor
 866 dnl outweighs that limitation.
 867 AC_DEFUN([CF_CC_ENV_FLAGS],
 868 [
 869 # This should have been defined by AC_PROG_CC
 870 : "${CC:=cc}"
 871
 872 AC_MSG_CHECKING(\$CFLAGS variable)
 873 case "x$CFLAGS" in
 874 (*-[[IUD]]*)
 875         AC_MSG_RESULT(broken)
 876         AC_MSG_WARN(your environment uses the CFLAGS variable to hold CPPFLAGS options)
 877         cf_flags="$CFLAGS"
 878         CFLAGS=
 879         for cf_arg in $cf_flags
 880         do
 881                 CF_ADD_CFLAGS($cf_arg)
 882         done
 883         ;;
 884 (*)
 885         AC_MSG_RESULT(ok)
 886         ;;
 887 esac
 888
 889 AC_MSG_CHECKING(\$CC variable)
 890 case "$CC" in
 891 (*[[\ \ ]]-*)
 892         AC_MSG_RESULT(broken)
 893         AC_MSG_WARN(your environment uses the CC variable to hold CFLAGS/CPPFLAGS options)
 894         # humor him...
 895         cf_prog=`echo "$CC" | sed -e 's/        / /g' -e 's/[[ ]]* / /g' -e 's/[[ ]]*[[ ]]-[[^ ]].*//'`
 896         cf_flags=`echo "$CC" | ${AWK:-awk} -v prog="$cf_prog" '{ printf("%s", [substr]([$]0,1+length(prog))); }'`
 897         CC="$cf_prog"
 898         for cf_arg in $cf_flags
 899         do
 900                 case "x$cf_arg" in
 901                 (x-[[IUDfgOW]]*)
 902                         CF_ADD_CFLAGS($cf_arg)
 903                         ;;
 904                 (*)
 905                         CC="$CC $cf_arg"
 906                         ;;
 907                 esac
 908         done
 909         CF_VERBOSE(resulting CC: '$CC')
 910         CF_VERBOSE(resulting CFLAGS: '$CFLAGS')
 911         CF_VERBOSE(resulting CPPFLAGS: '$CPPFLAGS')
 912         ;;
 913 (*)
 914         AC_MSG_RESULT(ok)
 915         ;;
 916 esac
 917 ])dnl
 918 dnl ---------------------------------------------------------------------------
 919 dnl CF_CFG_DEFAULTS version: 16 updated: 2021/01/04 19:33:05
 920 dnl ---------------
 921 dnl Determine the default configuration into which we'll install ncurses.  This
 922 dnl can be overridden by the user's command-line options.  There's two items to
 923 dnl look for:
 924 dnl     1. the prefix (e.g., /usr)
 925 dnl     2. the header files (e.g., /usr/include/ncurses)
 926 dnl We'll look for a previous installation of ncurses and use the same defaults.
 927 dnl
 928 dnl We don't use AC_PREFIX_DEFAULT, because it gets evaluated too soon, and
 929 dnl we don't use AC_PREFIX_PROGRAM, because we cannot distinguish ncurses's
 930 dnl programs from a vendor's.
 931 AC_DEFUN([CF_CFG_DEFAULTS],
 932 [AC_REQUIRE([AC_PROG_FGREP])dnl
 933
 934 AC_MSG_CHECKING(for prefix)
 935 if test "x$prefix" = "xNONE" ; then
 936         case "$cf_cv_system_name" in
 937                 # non-vendor systems don't have a conflict
 938         (openbsd*|freebsd*|mirbsd*|linux*|cygwin*|msys*|k*bsd*-gnu|mingw*)
 939                 prefix=/usr
 940                 ;;
 941         (*)     prefix=$ac_default_prefix
 942                 ;;
 943         esac
 944 fi
 945 AC_MSG_RESULT($prefix)
 946
 947 if test "x$prefix" = "xNONE" ; then
 948 AC_MSG_CHECKING(for default include-directory)
 949 test -n "$verbose" && echo 1>&AC_FD_MSG
 950 for cf_symbol in \
 951         "$includedir" \
 952         "$includedir/ncurses" \
 953         "$prefix/include" \
 954         "$prefix/include/ncurses" \
 955         /usr/local/include \
 956         /usr/local/include/ncurses \
 957         /usr/include \
 958         /usr/include/ncurses
 959 do
 960         cf_dir=`eval echo "$cf_symbol"`
 961         if test -f "$cf_dir/curses.h" ; then
 962         if ( ${FGREP-fgrep} NCURSES_VERSION "$cf_dir/curses.h" >/dev/null 2>&1 ) ; then
 963                 includedir="$cf_symbol"
 964                 test -n "$verbose"  && echo $ECHO_N "   found " 1>&AC_FD_MSG
 965                 break
 966         fi
 967         fi
 968         test -n "$verbose"  && echo "   tested $cf_dir" 1>&AC_FD_MSG
 969 done
 970 AC_MSG_RESULT($includedir)
 971 fi
 972 ])dnl
 973 dnl ---------------------------------------------------------------------------
 974 dnl CF_CGETENT version: 6 updated: 2017/01/21 11:06:25
 975 dnl ----------
 976 dnl Check if the terminal-capability database functions are available.  If not,
 977 dnl ncurses has a much-reduced version.
 978 AC_DEFUN([CF_CGETENT],[
 979 AC_CACHE_CHECK(for terminal-capability database functions,cf_cv_cgetent,[
 980 AC_TRY_LINK([
 981 #include <stdlib.h>],[
 982         char temp[128];
 983         char *buf = temp;
 984         char *db_array = temp;
 985         cgetent(&buf, &db_array, "vt100");
 986         cgetcap(buf, "tc", '=');
 987         cgetmatch(buf, "tc");
 988         ],
 989         [cf_cv_cgetent=yes],
 990         [cf_cv_cgetent=no])
 991 ])
 992
 993 if test "$cf_cv_cgetent" = yes
 994 then
 995         AC_DEFINE(HAVE_BSD_CGETENT,1,[Define to 1 if we have BSD cgetent])
 996 AC_CACHE_CHECK(if cgetent uses const parameter,cf_cv_cgetent_const,[
 997 AC_TRY_LINK([
 998 #pragma GCC diagnostic error "-Wincompatible-pointer-types-discards-qualifiers"
 999 #include <stdlib.h>],[
1000         char temp[128];
1001         char *buf = temp;
1002 #ifndef _NETBSD_SOURCE                  /* given, since April 2004 in stdlib.h */
1003         const char *db_array = temp;
1004         cgetent(&buf, &db_array, "vt100");
1005 #endif
1006         cgetcap(buf, "tc", '=');
1007         cgetmatch(buf, "tc");
1008         ],
1009         [cf_cv_cgetent_const=yes],
1010         [cf_cv_cgetent_const=no])
1011 ])
1012         if test "$cf_cv_cgetent_const" = yes
1013         then
1014                 AC_DEFINE_UNQUOTED(CGETENT_CONST,const,[Define to const if needed for some BSD cgetent variations])
1015         fi
1016 fi
1017 ])dnl
1018 dnl ---------------------------------------------------------------------------
1019 dnl CF_CHECK_CACHE version: 13 updated: 2020/12/31 10:54:15
1020 dnl --------------
1021 dnl Check if we're accidentally using a cache from a different machine.
1022 dnl Derive the system name, as a check for reusing the autoconf cache.
1023 dnl
1024 dnl If we've packaged config.guess and config.sub, run that (since it does a
1025 dnl better job than uname).  Normally we'll use AC_CANONICAL_HOST, but allow
1026 dnl an extra parameter that we may override, e.g., for AC_CANONICAL_SYSTEM
1027 dnl which is useful in cross-compiles.
1028 dnl
1029 dnl Note: we would use $ac_config_sub, but that is one of the places where
1030 dnl autoconf 2.5x broke compatibility with autoconf 2.13
1031 AC_DEFUN([CF_CHECK_CACHE],
1032 [
1033 if test -f "$srcdir/config.guess" || test -f "$ac_aux_dir/config.guess" ; then
1034         ifelse([$1],,[AC_CANONICAL_HOST],[$1])
1035         system_name="$host_os"
1036 else
1037         system_name="`(uname -s -r) 2>/dev/null`"
1038         if test -z "$system_name" ; then
1039                 system_name="`(hostname) 2>/dev/null`"
1040         fi
1041 fi
1042 test -n "$system_name" && AC_DEFINE_UNQUOTED(SYSTEM_NAME,"$system_name",[Define to the system name.])
1043 AC_CACHE_VAL(cf_cv_system_name,[cf_cv_system_name="$system_name"])
1044
1045 test -z "$system_name" && system_name="$cf_cv_system_name"
1046 test -n "$cf_cv_system_name" && AC_MSG_RESULT(Configuring for $cf_cv_system_name)
1047
1048 if test ".$system_name" != ".$cf_cv_system_name" ; then
1049         AC_MSG_RESULT(Cached system name ($system_name) does not agree with actual ($cf_cv_system_name))
1050         AC_MSG_ERROR("Please remove config.cache and try again.")
1051 fi
1052 ])dnl
1053 dnl ---------------------------------------------------------------------------
1054 dnl CF_CHECK_ENVIRON version: 3 updated: 2010/05/26 16:44:57
1055 dnl ----------------
1056 dnl Check for data that is usually declared in <unistd.h>, e.g., the 'environ'
1057 dnl variable.  Define a DECL_xxx symbol if we must declare it ourselves.
1058 dnl
1059 dnl $1 = the name to check
1060 dnl $2 = the assumed type
1061 AC_DEFUN([CF_CHECK_ENVIRON],
1062 [
1063 AC_CACHE_CHECK(if external $1 is declared, cf_cv_dcl_$1,[
1064     AC_TRY_COMPILE([
1065 #ifdef HAVE_STDLIB_H
1066 #include <stdlib.h>
1067 #endif
1068 #include <unistd.h> ],
1069     ifelse([$2],,int,[$2]) x = (ifelse([$2],,int,[$2])) $1,
1070     [cf_cv_dcl_$1=yes],
1071     [cf_cv_dcl_$1=no])
1072 ])
1073
1074 if test "$cf_cv_dcl_$1" = no ; then
1075     CF_UPPER(cf_result,decl_$1)
1076     AC_DEFINE_UNQUOTED($cf_result)
1077 fi
1078
1079 # It's possible (for near-UNIX clones) that the data doesn't exist
1080 CF_CHECK_EXTERN_DATA($1,ifelse([$2],,int,[$2]))
1081 ])dnl
1082 dnl ---------------------------------------------------------------------------
1083 dnl CF_CHECK_ERRNO version: 13 updated: 2020/03/10 18:53:47
1084 dnl --------------
1085 dnl Check for data that is usually declared in <stdio.h> or <errno.h>, e.g.,
1086 dnl the 'errno' variable.  Define a DECL_xxx symbol if we must declare it
1087 dnl ourselves.
1088 dnl
1089 dnl $1 = the name to check
1090 dnl $2 = the assumed type
1091 AC_DEFUN([CF_CHECK_ERRNO],
1092 [
1093 AC_CACHE_CHECK(if external $1 is declared, cf_cv_dcl_$1,[
1094         AC_TRY_COMPILE([
1095 #ifdef HAVE_STDLIB_H
1096 #include <stdlib.h>
1097 #endif
1098 #include <stdio.h>
1099 #include <sys/types.h>
1100 #include <errno.h> ],
1101         ifelse([$2],,int,[$2]) x = (ifelse([$2],,int,[$2])) $1; (void)x,
1102         [cf_cv_dcl_$1=yes],
1103         [cf_cv_dcl_$1=no])
1104 ])
1105
1106 if test "$cf_cv_dcl_$1" = no ; then
1107         CF_UPPER(cf_result,decl_$1)
1108         AC_DEFINE_UNQUOTED($cf_result)
1109 fi
1110
1111 # It's possible (for near-UNIX clones) that the data doesn't exist
1112 CF_CHECK_EXTERN_DATA($1,ifelse([$2],,int,[$2]))
1113 ])dnl
1114 dnl ---------------------------------------------------------------------------
1115 dnl CF_CHECK_EXTERN_DATA version: 5 updated: 2021/09/04 06:35:04
1116 dnl --------------------
1117 dnl Check for existence of external data in the current set of libraries.  If
1118 dnl we can modify it, it is real enough.
1119 dnl $1 = the name to check
1120 dnl $2 = its type
1121 AC_DEFUN([CF_CHECK_EXTERN_DATA],
1122 [
1123 AC_CACHE_CHECK(if external $1 exists, cf_cv_have_$1,[
1124         AC_TRY_LINK([
1125 #undef $1
1126 extern $2 $1;
1127 ],
1128         [$1 = 2],
1129         [cf_cv_have_$1=yes],
1130         [cf_cv_have_$1=no])
1131 ])
1132
1133 if test "$cf_cv_have_$1" = yes ; then
1134         CF_UPPER(cf_result,have_$1)
1135         AC_DEFINE_UNQUOTED($cf_result)
1136 fi
1137
1138 ])dnl
1139 dnl ---------------------------------------------------------------------------
1140 dnl CF_CHECK_FVISIBILITY version: 2 updated: 2020/04/04 16:16:13
1141 dnl --------------------
1142 dnl Check whether the compiler understands -fvisibility=hidden
1143 dnl
1144 dnl $1 = compiler
1145 dnl $2 = compiler-flags variable name
1146 dnl $3 = cache variable to set
1147 AC_DEFUN([CF_CHECK_FVISIBILITY],[
1148 AC_CACHE_CHECK(if $1 -fvisibility=hidden option works,$3,[
1149     cf_save_cflags="[$]$2"
1150     $2="[$]$2 -fvisibility=hidden"
1151     AC_TRY_LINK([
1152 __attribute__ ((visibility("default"))) int somefunc() {return 42;}
1153         ],[
1154         if (somefunc()) return 1;
1155 ],
1156     [$3=yes],
1157     [$3=no])
1158     $2=$cf_save_cflags
1159 ])
1160 ])dnl
1161 dnl ---------------------------------------------------------------------------
1162 dnl CF_CHECK_GETENV version: 2 updated: 2021/01/02 17:09:14
1163 dnl ---------------
1164 dnl Check if repeated getenv calls return the same pointer, e.g., it does not
1165 dnl discard the previous pointer when returning a new one.
1166 AC_DEFUN([CF_CHECK_GETENV],
1167 [
1168 AC_REQUIRE([CF_CHECK_ENVIRON])
1169 AC_CHECK_FUNC( getenv, ,, AC_MSG_ERROR(getenv not found) )
1170 AC_CHECK_FUNCS( putenv setenv strdup )
1171 AC_CACHE_CHECK(if getenv returns consistent values,cf_cv_consistent_getenv,[
1172 AC_TRY_RUN([
1173 #include <stdlib.h>
1174 #include <unistd.h>
1175 #include <stdio.h>
1176 #include <string.h>
1177 #include <sys/types.h>
1178
1179 #if defined(HAVE_ENVIRON) && defined(DECL_ENVIRON) && !defined(environ)
1180 extern char **environ;  /* POSIX, but some systems are not... */
1181 #endif
1182
1183 #if defined(HAVE_STRDUP)
1184 #define str_alloc(s) strdup(s)
1185 #else
1186 #define str_alloc(s) strcpy(malloc(strlen(s) + 1, s))
1187 #endif
1188
1189 static void set_value(const char *name, const char *value)
1190 {
1191 #if defined(HAVE_SETENV)
1192         setenv(name, value, 1);
1193 #elif defined(HAVE_PUTENV)
1194         char buffer[1024];
1195         sprintf(buffer, "%s=%s", name, value);
1196         putenv(str_alloc(buffer));
1197 #else
1198 #error neither putenv/setenv found
1199 #endif
1200 }
1201 int main(void)
1202 {
1203         int pass;
1204         size_t numenv, limit, j;
1205         char **mynames;
1206         char **myvalues;
1207         char **mypointer;
1208         char *equals;
1209         for (numenv = 0; environ[numenv]; ++numenv) ;
1210         limit = numenv + 10;
1211         mynames = (char **) calloc(limit + 1, sizeof(char *));
1212         myvalues = (char **) calloc(limit + 1, sizeof(char *));
1213         mypointer = (char **) calloc(limit + 1, sizeof(char *));
1214 #if defined(HAVE_ENVIRON)
1215         for (j = 0; environ[j]; ++j) {
1216                 mynames[j] = str_alloc(environ[j]);
1217                 equals = strchr(mynames[j], '=');
1218                 if (equals != 0) {
1219                         *equals++ = '\\0';
1220                         myvalues[j] = str_alloc(equals);
1221                 } else {
1222                         myvalues[j] = str_alloc("");
1223                 }
1224         }
1225 #endif
1226         for (j = numenv; j < limit; ++j) {
1227                 char name[80];
1228                 char value[80];
1229                 size_t found;
1230                 size_t k = 0;
1231                 do {
1232                         size_t jk;
1233                         found = 0;
1234                         sprintf(name, "TERM%lu", (unsigned long) k);
1235                         for (jk = 0; jk < j; ++jk) {
1236                                 if (!strcmp(name, mynames[jk])) {
1237                                         found = 1;
1238                                         ++k;
1239                                         break;
1240                                 }
1241                         }
1242                 } while (found);
1243                 sprintf(value, "%lu:%p", (unsigned long) k, &mynames[j]);
1244                 set_value(name, value);
1245                 mynames[j] = str_alloc(name);
1246                 myvalues[j] = str_alloc(value);
1247         }
1248         for (pass = 0; pass < 3; ++pass) {
1249                 for (j = 0; j < limit; ++j) {
1250                         char *value = getenv(mynames[j]);
1251                         if (pass) {
1252                                 if (value == 0) {
1253                                         fprintf(stderr, "getenv returned null for %s\\n", mynames[j]);
1254                                         ${cf_cv_main_return:-return}(1);
1255                                 } else if (value != mypointer[j]) {
1256                                         fprintf(stderr, "getenv returned different pointer for %s\\n", mynames[j]);
1257                                         ${cf_cv_main_return:-return}(1);
1258                                 } else if (strcmp(value, myvalues[j])) {
1259                                         fprintf(stderr, "getenv returned different value for %s\\n", mynames[j]);
1260                                         ${cf_cv_main_return:-return}(1);
1261                                 }
1262                         } else {
1263                                 size_t k;
1264                                 mypointer[j] = value;
1265                                 for (k = 0; k < j; ++k) {
1266                                         if (mypointer[j] == mypointer[k]) {
1267                                                 fprintf(stderr, "getenv returned same pointer for %s and %s\\n", mynames[j], mynames[k]);
1268                                                 ${cf_cv_main_return:-return}(1);
1269                                         }
1270                                 }
1271                         }
1272                 }
1273         }
1274         ${cf_cv_main_return:-return}(0);
1275 }
1276 ],
1277 [cf_cv_consistent_getenv=yes],
1278 [cf_cv_consistent_getenv=no],
1279 [cf_cv_consistent_getenv=unknown])
1280 ])
1281
1282 if test "x$cf_cv_consistent_getenv" = xno
1283 then
1284         AC_DEFINE(HAVE_CONSISTENT_GETENV,1,[Define to 1 if getenv repeatably returns the same value for a given name])
1285 fi
1286 ])dnl
1287 dnl ---------------------------------------------------------------------------
1288 dnl CF_CHECK_GNAT_VERSION version: 4 updated: 2021/01/01 13:31:04
1289 dnl ---------------------
1290 AC_DEFUN([CF_CHECK_GNAT_VERSION],
1291 [
1292 AC_REQUIRE([CF_GNAT_VERSION])
1293 case "$cf_cv_gnat_version" in
1294 (3.1[[1-9]]*|3.[[2-9]]*|[[4-9]].*|[[1-9]][[0-9]].[[0-9]]*|20[[0-9]][[0-9]])
1295         cf_cv_prog_gnat_correct=yes
1296         ;;
1297 (*)
1298         AC_MSG_WARN(Unsupported GNAT version $cf_cv_gnat_version. We require 3.11 or better. Disabling Ada95 binding.)
1299         cf_cv_prog_gnat_correct=no
1300         ;;
1301 esac
1302 ])
1303 dnl ---------------------------------------------------------------------------
1304 dnl CF_CHECK_GPM_WGETCH version: 6 updated: 2021/01/04 18:48:01
1305 dnl -------------------
1306 dnl Check if GPM is already linked with curses.  If so - and if the linkage
1307 dnl is not "weak" - warn about this because it can create problems linking
1308 dnl applications with ncurses.
1309 AC_DEFUN([CF_CHECK_GPM_WGETCH],[
1310 AC_REQUIRE([AC_PROG_EGREP])dnl
1311
1312 AC_CHECK_LIB(gpm,Gpm_Wgetch,[
1313
1314 AC_CACHE_CHECK(if GPM is weakly bound to curses library, cf_cv_check_gpm_wgetch,[
1315 cf_cv_check_gpm_wgetch=unknown
1316 if test "$cross_compiling" != yes ; then
1317
1318 cat >conftest.$ac_ext <<CF_EOF
1319 #include <gpm.h>
1320 int main(void)
1321 {
1322         Gpm_Wgetch();
1323         ${cf_cv_main_return:-return}(0);
1324 }
1325 CF_EOF
1326
1327         cf_save_LIBS="$LIBS"
1328         # This only works if we can look at the symbol table.  If a shared
1329         # library is stripped for install, we cannot use that.  So we're forced
1330         # to rely on the static library, noting that some packagers may not
1331         # include it.
1332         LIBS="-static -lgpm -dynamic $LIBS"
1333         if AC_TRY_EVAL(ac_compile) ; then
1334                 if AC_TRY_EVAL(ac_link) ; then
1335                         cf_cv_check_gpm_wgetch="`nm \"conftest$ac_exeext\" | ${EGREP-egrep} '\<wgetch\>' | ${EGREP-egrep} '\<[[vVwW]]\>'`"
1336                         test -n "$cf_cv_check_gpm_wgetch" && cf_cv_check_gpm_wgetch=yes
1337                         test -z "$cf_cv_check_gpm_wgetch" && cf_cv_check_gpm_wgetch=no
1338                 fi
1339         fi
1340         rm -rf ./conftest*
1341         LIBS="$cf_save_LIBS"
1342 fi
1343 ])
1344
1345 if test "$cf_cv_check_gpm_wgetch" != yes ; then
1346         AC_MSG_WARN(GPM library is already linked with curses - read the FAQ)
1347 fi
1348 ])])dnl
1349 dnl ---------------------------------------------------------------------------
1350 dnl CF_CHECK_LIBSSP version: 1 updated: 2021/10/30 10:40:19
1351 dnl ---------------
1352 dnl Check if libssp is needed, e.g., to work around misconfigured libraries
1353 dnl used in cross-compiling to MinGW.
1354 AC_DEFUN([CF_CHECK_LIBSSP],[
1355 AC_CACHE_CHECK(if ssp library is needed,cf_cv_need_libssp,[
1356 AC_TRY_LINK([
1357 #include <sys/types.h>
1358 #include <dirent.h>
1359 ],[
1360        DIR *dp = opendir(".");
1361 ],cf_cv_need_libssp=no,[
1362         cf_save_LIBS="$LIBS"
1363         LIBS="$LIBS -lssp"
1364         AC_TRY_LINK([
1365 #include <sys/types.h>
1366 #include <dirent.h>
1367         ],[
1368                    DIR *dp = opendir(".");
1369         ],cf_cv_need_libssp=yes,
1370           cf_cv_need_libssp=maybe)
1371         LIBS="$cf_save_LIBS"
1372 ])dnl
1373 ])
1374
1375 if test "x$cf_cv_need_libssp" = xyes
1376 then
1377         CF_ADD_LIB(ssp)
1378 fi
1379 ])dnl
1380 dnl ---------------------------------------------------------------------------
1381 dnl CF_CHECK_LIBTOOL_VERSION version: 2 updated: 2021/05/01 16:24:34
1382 dnl ------------------------
1383 dnl Show the version of libtool
1384 dnl
1385 dnl Save the version in a cache variable - this is not entirely a good thing,
1386 dnl but the version string from libtool is very ugly, and for bug reports it
1387 dnl might be useful to have the original string.
1388 dnl
1389 dnl There is an imitation in OpenBSD, which has no apparent use other than to
1390 dnl deny that it is GNU libtool.  Just ignore it.
1391 AC_DEFUN([CF_CHECK_LIBTOOL_VERSION],[
1392 if test -n "$LIBTOOL" && test "$LIBTOOL" != none
1393 then
1394         AC_MSG_CHECKING(version of $LIBTOOL)
1395         CF_LIBTOOL_VERSION
1396         AC_MSG_RESULT($cf_cv_libtool_version)
1397         if test -n "$cf_cv_libtool_version"
1398         then
1399                 cf_check_libtool_version=`$LIBTOOL --version 2>&1 | sed -e '/^$/d' -e 's,[[()]],...,g' -e 's,[[ ]],-,g' -e '2,$d'`
1400                 case "x$cf_check_libtool_version" in
1401                 (*...GNU-libtool...*)
1402                         ;;
1403                 (*)
1404                         AC_MSG_ERROR(This is not GNU libtool)
1405                         ;;
1406                 esac
1407         else
1408                 AC_MSG_ERROR(No version found for $LIBTOOL)
1409         fi
1410 else
1411         AC_MSG_ERROR(GNU libtool has not been found)
1412 fi
1413 ])dnl
1414 dnl ---------------------------------------------------------------------------
1415 dnl CF_CHECK_WCHAR_H version: 3 updated: 2021/01/01 13:31:04
1416 dnl ----------------
1417 dnl Check if wchar.h can be used, i.e., without defining _XOPEN_SOURCE_EXTENDED
1418 AC_DEFUN([CF_CHECK_WCHAR_H],[
1419 AC_CHECK_HEADERS( \
1420 wchar.h \
1421 wctype.h \
1422 )
1423 AC_CACHE_CHECK(if wchar.h can be used as is,cf_cv_wchar_h_okay,[
1424 AC_TRY_COMPILE(
1425 [
1426 #include <stdlib.h>
1427 #ifdef HAVE_WCHAR_H
1428 #include <wchar.h>
1429 #endif
1430 #ifdef HAVE_WCTYPE_H
1431 #include <wctype.h>
1432 #endif
1433 ],[
1434         wint_t foo = 0;
1435         int bar = iswpunct(foo)],
1436         [cf_cv_wchar_h_okay=yes],
1437         [cf_cv_wchar_h_okay=no])])
1438
1439 if test "$cf_cv_wchar_h_okay" = no
1440 then
1441         CF_PREDEFINE(_XOPEN_SOURCE_EXTENDED)
1442 fi
1443 ])dnl
1444 dnl ---------------------------------------------------------------------------
1445 dnl CF_CHECK_WCWIDTH_GRAPHICS version: 2 updated: 2021/01/02 17:09:14
1446 dnl -------------------------
1447 dnl Most "modern" terminal emulators are based to some degree on VT100, and
1448 dnl should support line-drawing.  Even with Unicode.  There is a problem.
1449 dnl
1450 dnl While most of the VT100 graphics characters were incorporated into Unicode,
1451 dnl all of those were combined into a page of useful graphics characters.
1452 dnl
1453 dnl So far, so good.
1454 dnl
1455 dnl However, while they are useful, there are other considerations.  CJK
1456 dnl is (because of poor device resolution) often rendered as double-width
1457 dnl characters.  So... for these generally-useful characters, what should
1458 dnl be the width (to make them consistent with adjacent characters)?
1459 dnl
1460 dnl The obvious choice would have been to make this locale-dependent, and use
1461 dnl wcwidth() to tell applications what the actual width is.  That was too
1462 dnl obvious.  Instead, we have a slew of "ambiguous-width" characters.
1463 dnl See for example
1464 dnl             http://www.unicode.org/reports/tr11/tr11-29.html
1465 dnl             http://www.cl.cam.ac.uk/~mgk25/ucs/scw-proposal.html
1466 dnl
1467 dnl The EastAsianWidth-6.2.0.txt file from the Unicode organization lists
1468 dnl more than 22,000 characters, with 1281 of those as ambiguous-width.  For
1469 dnl instance, it lists half (44/96) of the Latin-1 characters as
1470 dnl ambiguous-width.  Also, all of the box-characters at 0x2500 are ambiguous.
1471 dnl
1472 dnl What this means for the implementor is that on some systems wcwidth() can
1473 dnl give bad advice.  On Solaris, some of the ambiguous widths are returned as
1474 dnl 1 (the Latin-1 characters), while others are returned as 2 (line-drawing
1475 dnl characters).  These do not necessarily match the behavior of the terminal
1476 dnl emulator.  xterm, for instance, does an optional startup check to find if
1477 dnl this problem (or similar) exists with the system's locale tables, rejecting
1478 dnl them if they are too unreliable.
1479 AC_DEFUN([CF_CHECK_WCWIDTH_GRAPHICS],[
1480 AC_CACHE_CHECK(if wcwidth agrees graphics are single-width, cf_cv_wcwidth_graphics,[
1481 cat >conftest.in <<CF_EOF
1482 -       VT100 symbols
1483 0x250c  upper left corner
1484 0x2514  lower left corner
1485 0x2510  upper right corner
1486 0x2518  lower right corner
1487 0x251c  tee pointing left
1488 0x2524  tee pointing right
1489 0x2534  tee pointing up
1490 0x252c  tee pointing down
1491 0x2500  horizontal line
1492 0x2502  vertical line
1493 0x253c  large plus or crossover
1494 0x23ba  scan line 1
1495 0x23bd  scan line 9
1496 0x25c6  diamond
1497 0x2592  checker board (stipple)
1498 0x00b0  degree symbol
1499 0x00b1  plus/minus
1500 0x00b7  bullet
1501 -       Teletype 5410v1 symbols
1502 0x2190  arrow pointing left
1503 0x2192  arrow pointing right
1504 0x2193  arrow pointing down
1505 0x2191  arrow pointing up
1506 0x2592  board of squares
1507 0x2603  lantern symbol
1508 0x25ae  solid square block
1509 -       these defaults were invented for ncurses
1510 0x23bb  scan line 3
1511 0x23bc  scan line 7
1512 0x2264  less-than-or-equal-to
1513 0x2265  greater-than-or-equal-to
1514 0x03c0  greek pi
1515 0x2260  not-equal
1516 0x00a3  pound-sterling symbol
1517 -       thick-line-drawing
1518 0x250f  upper left corner
1519 0x2517  lower left corner
1520 0x2513  upper right corner
1521 0x251b  lower right corner
1522 0x2523  tee pointing left
1523 0x252b  tee pointing right
1524 0x253b  tee pointing up
1525 0x2533  tee pointing down
1526 0x2501  horizontal line
1527 0x2503  vertical line
1528 0x254b  large plus or crossover
1529 -       double-line-drawing
1530 0x2554  upper left corner
1531 0x255a  lower left corner
1532 0x2557  upper right corner
1533 0x255d  lower right corner
1534 0x2563  tee pointing left
1535 0x2560  tee pointing right
1536 0x2569  tee pointing up
1537 0x2566  tee pointing down
1538 0x2550  horizontal line
1539 0x2551  vertical line
1540 0x256c  large plus or crossover
1541 CF_EOF
1542 AC_TRY_RUN([
1543 #include <locale.h>
1544 #include <stdio.h>
1545 #include <wchar.h>
1546
1547 #define MY_LEN 80
1548
1549 int
1550 main(void)
1551 {
1552         FILE *fp;
1553         int value;
1554         char buffer[MY_LEN + 1];
1555         char notes[MY_LEN + 1];
1556         int totals = 0;
1557         int passed = 0;
1558
1559         if (setlocale(LC_ALL, "en_US.UTF8") ||
1560                 setlocale(LC_ALL, "en_US.UTF-8") ||
1561                 setlocale(LC_ALL, "en_US.utf8") ||
1562                 setlocale(LC_ALL, "en_US.utf-8")) {
1563                 if ((fp = fopen("conftest.in", "r")) != 0) {
1564                         while (fgets(buffer, MY_LEN, fp) != 0) {
1565                                 if (*buffer == '-') {
1566                                         fprintf(stderr, "\\t%s", buffer);
1567                                 } else if (sscanf(buffer, "%x %s", &value, notes) == 2) {
1568                                         ++totals;
1569                                         if (wcwidth(value) == 1)
1570                                                 ++passed;
1571                                         fprintf(stderr, "%d\\t%s", wcwidth(value), buffer);
1572                                 } else {
1573                                         fprintf(stderr, "?\\t%s", buffer);
1574                                 }
1575                         }
1576                 }
1577         }
1578         fprintf(stderr, "%d/%d passed wcwidth/graphics check\\n", passed, totals);
1579         return (totals == passed) ? 0 : 1;
1580 }
1581 ],
1582 [cf_cv_wcwidth_graphics=yes],
1583 [cf_cv_wcwidth_graphics=no],
1584 [cf_cv_wcwidth_graphics=unknown])
1585 ])
1586 ])dnl
1587 dnl ---------------------------------------------------------------------------
1588 dnl CF_CLANG_COMPILER version: 8 updated: 2021/01/01 13:31:04
1589 dnl -----------------
1590 dnl Check if the given compiler is really clang.  clang's C driver defines
1591 dnl __GNUC__ (fooling the configure script into setting $GCC to yes) but does
1592 dnl not ignore some gcc options.
1593 dnl
1594 dnl This macro should be run "soon" after AC_PROG_CC or AC_PROG_CPLUSPLUS, to
1595 dnl ensure that it is not mistaken for gcc/g++.  It is normally invoked from
1596 dnl the wrappers for gcc and g++ warnings.
1597 dnl
1598 dnl $1 = GCC (default) or GXX
1599 dnl $2 = CLANG_COMPILER (default)
1600 dnl $3 = CFLAGS (default) or CXXFLAGS
1601 AC_DEFUN([CF_CLANG_COMPILER],[
1602 ifelse([$2],,CLANG_COMPILER,[$2])=no
1603
1604 if test "$ifelse([$1],,[$1],GCC)" = yes ; then
1605         AC_MSG_CHECKING(if this is really Clang ifelse([$1],GXX,C++,C) compiler)
1606         cf_save_CFLAGS="$ifelse([$3],,CFLAGS,[$3])"
1607         AC_TRY_COMPILE([],[
1608 #ifdef __clang__
1609 #else
1610 make an error
1611 #endif
1612 ],[ifelse([$2],,CLANG_COMPILER,[$2])=yes
1613 ],[])
1614         ifelse([$3],,CFLAGS,[$3])="$cf_save_CFLAGS"
1615         AC_MSG_RESULT($ifelse([$2],,CLANG_COMPILER,[$2]))
1616 fi
1617
1618 CLANG_VERSION=none
1619
1620 if test "x$ifelse([$2],,CLANG_COMPILER,[$2])" = "xyes" ; then
1621         case "$CC" in
1622         (c[[1-9]][[0-9]]|*/c[[1-9]][[0-9]])
1623                 AC_MSG_WARN(replacing broken compiler alias $CC)
1624                 CFLAGS="$CFLAGS -std=`echo "$CC" | sed -e 's%.*/%%'`"
1625                 CC=clang
1626                 ;;
1627         esac
1628
1629         AC_MSG_CHECKING(version of $CC)
1630         CLANG_VERSION="`$CC --version 2>/dev/null | sed -e '2,$d' -e 's/^.*(CLANG[[^)]]*) //' -e 's/^.*(Debian[[^)]]*) //' -e 's/^[[^0-9.]]*//' -e 's/[[^0-9.]].*//'`"
1631         test -z "$CLANG_VERSION" && CLANG_VERSION=unknown
1632         AC_MSG_RESULT($CLANG_VERSION)
1633
1634         for cf_clang_opt in \
1635                 -Qunused-arguments \
1636                 -Wno-error=implicit-function-declaration
1637         do
1638                 AC_MSG_CHECKING(if option $cf_clang_opt works)
1639                 cf_save_CFLAGS="$CFLAGS"
1640                 CFLAGS="$CFLAGS $cf_clang_opt"
1641                 AC_TRY_LINK([
1642                         #include <stdio.h>],[
1643                         printf("hello!\\n");],[
1644                         cf_clang_optok=yes],[
1645                         cf_clang_optok=no])
1646                 AC_MSG_RESULT($cf_clang_optok)
1647                 CFLAGS="$cf_save_CFLAGS"
1648                 if test "$cf_clang_optok" = yes; then
1649                         CF_VERBOSE(adding option $cf_clang_opt)
1650                         CF_APPEND_TEXT(CFLAGS,$cf_clang_opt)
1651                 fi
1652         done
1653 fi
1654 ])
1655 dnl ---------------------------------------------------------------------------
1656 dnl CF_CONST_X_STRING version: 7 updated: 2021/06/07 17:39:17
1657 dnl -----------------
1658 dnl The X11R4-X11R6 Xt specification uses an ambiguous String type for most
1659 dnl character-strings.
1660 dnl
1661 dnl It is ambiguous because the specification accommodated the pre-ANSI
1662 dnl compilers bundled by more than one vendor in lieu of providing a standard C
1663 dnl compiler other than by costly add-ons.  Because of this, the specification
1664 dnl did not take into account the use of const for telling the compiler that
1665 dnl string literals would be in readonly memory.
1666 dnl
1667 dnl As a workaround, one could (starting with X11R5) define XTSTRINGDEFINES, to
1668 dnl let the compiler decide how to represent Xt's strings which were #define'd.
1669 dnl That does not solve the problem of using the block of Xt's strings which
1670 dnl are compiled into the library (and is less efficient than one might want).
1671 dnl
1672 dnl Xt specification 7 introduces the _CONST_X_STRING symbol which is used both
1673 dnl when compiling the library and compiling using the library, to tell the
1674 dnl compiler that String is const.
1675 AC_DEFUN([CF_CONST_X_STRING],
1676 [
1677 AC_REQUIRE([AC_PATH_XTRA])
1678
1679 CF_SAVE_XTRA_FLAGS([CF_CONST_X_STRING])
1680
1681 AC_TRY_COMPILE(
1682 [
1683 #include <stdlib.h>
1684 #include <X11/Intrinsic.h>
1685 ],
1686 [String foo = malloc(1); free((void*)foo)],[
1687
1688 AC_CACHE_CHECK(for X11/Xt const-feature,cf_cv_const_x_string,[
1689         AC_TRY_COMPILE(
1690                 [
1691 #define _CONST_X_STRING /* X11R7.8 (perhaps) */
1692 #undef  XTSTRINGDEFINES /* X11R5 and later */
1693 #include <stdlib.h>
1694 #include <X11/Intrinsic.h>
1695                 ],[String foo = malloc(1); *foo = 0],[
1696                         cf_cv_const_x_string=no
1697                 ],[
1698                         cf_cv_const_x_string=yes
1699                 ])
1700 ])
1701
1702 CF_RESTORE_XTRA_FLAGS([CF_CONST_X_STRING])
1703
1704 case "$cf_cv_const_x_string" in
1705 (no)
1706         CF_APPEND_TEXT(CPPFLAGS,-DXTSTRINGDEFINES)
1707         ;;
1708 (*)
1709         CF_APPEND_TEXT(CPPFLAGS,-D_CONST_X_STRING)
1710         ;;
1711 esac
1712
1713 ])
1714 ])dnl
1715 dnl ---------------------------------------------------------------------------
1716 dnl CF_CPP_PARAM_INIT version: 7 updated: 2017/01/21 11:06:25
1717 dnl -----------------
1718 dnl Check if the C++ compiler accepts duplicate parameter initialization.  This
1719 dnl is a late feature for the standard and is not in some recent compilers
1720 dnl (1999/9/11).
1721 AC_DEFUN([CF_CPP_PARAM_INIT],
1722 [
1723 if test -n "$CXX"; then
1724 AC_CACHE_CHECK(if $CXX accepts parameter initialization,cf_cv_cpp_param_init,[
1725         AC_LANG_SAVE
1726         AC_LANG_CPLUSPLUS
1727         AC_TRY_RUN([
1728 class TEST {
1729 private:
1730         int value;
1731 public:
1732         TEST(int x = 1);
1733         ~TEST();
1734 };
1735
1736 TEST::TEST(int x = 1)   // some compilers do not like second initializer
1737 {
1738         value = x;
1739 }
1740 int main(void) { }
1741 ],
1742         [cf_cv_cpp_param_init=yes],
1743         [cf_cv_cpp_param_init=no],
1744         [cf_cv_cpp_param_init=unknown])
1745         AC_LANG_RESTORE
1746 ])
1747 fi
1748 test "$cf_cv_cpp_param_init" = yes && AC_DEFINE(CPP_HAS_PARAM_INIT,1,[Define to 1 if C++ has parameter initialization])
1749 ])dnl
1750 dnl ---------------------------------------------------------------------------
1751 dnl CF_CPP_STATIC_CAST version: 3 updated: 2013/04/13 18:03:21
1752 dnl ------------------
1753 dnl Check if the C++ compiler accepts static_cast in generics.  This appears to
1754 dnl not be supported in g++ before 3.0
1755 AC_DEFUN([CF_CPP_STATIC_CAST],
1756 [
1757 if test -n "$CXX"; then
1758
1759 AC_CACHE_CHECK(if $CXX accepts static_cast,cf_cv_cpp_static_cast,[
1760         AC_LANG_SAVE
1761         AC_LANG_CPLUSPLUS
1762
1763         AC_TRY_COMPILE([
1764 class NCursesPanel
1765 {
1766 public:
1767   NCursesPanel(int nlines,
1768                int ncols,
1769                int begin_y = 0,
1770                int begin_x = 0)
1771   {
1772   }
1773   NCursesPanel();
1774   ~NCursesPanel();
1775 };
1776
1777 template<class T> class NCursesUserPanel : public NCursesPanel
1778 {
1779 public:
1780   NCursesUserPanel (int nlines,
1781                     int ncols,
1782                     int begin_y = 0,
1783                     int begin_x = 0,
1784                     const T* p_UserData = static_cast<T*>(0))
1785     : NCursesPanel (nlines, ncols, begin_y, begin_x)
1786   {
1787   };
1788   NCursesUserPanel(const T* p_UserData = static_cast<T*>(0)) : NCursesPanel()
1789   {
1790   };
1791
1792   virtual ~NCursesUserPanel() {};
1793 };
1794 ],[
1795         const char* p_UserData = static_cast<char*>(0)],
1796         [cf_cv_cpp_static_cast=yes],
1797         [cf_cv_cpp_static_cast=no])
1798
1799         AC_LANG_RESTORE
1800 ])
1801
1802 fi
1803
1804 test "$cf_cv_cpp_static_cast" = yes && AC_DEFINE(CPP_HAS_STATIC_CAST,1,[Define to 1 if C++ has static_cast])
1805 ])dnl
1806 dnl ---------------------------------------------------------------------------
1807 dnl CF_CXX_AR_FLAGS version: 3 updated: 2021/01/01 13:31:04
1808 dnl ---------------
1809 dnl Setup special archiver flags for given compilers.
1810 AC_DEFUN([CF_CXX_AR_FLAGS],[
1811         CXX_AR='$(AR)'
1812         CXX_ARFLAGS='$(ARFLAGS)'
1813         case "$cf_cv_system_name" in
1814         (irix*)
1815             if test "$GXX" != yes ; then
1816                 CXX_AR='$(CXX)'
1817                 CXX_ARFLAGS='-ar -o'
1818             fi
1819             ;;
1820         (sco3.2v5*)
1821             CXXLDFLAGS="-u main"
1822             ;;
1823         (solaris2*)
1824             if test "$GXX" != yes ; then
1825                 CXX_AR='$(CXX)'
1826                 CXX_ARFLAGS='-xar -o'
1827             fi
1828             ;;
1829         esac
1830         AC_SUBST(CXXLDFLAGS)
1831         AC_SUBST(CXX_AR)
1832         AC_SUBST(CXX_ARFLAGS)
1833 ])dnl
1834 dnl ---------------------------------------------------------------------------
1835 dnl CF_CXX_IOSTREAM_NAMESPACE version: 2 updated: 2012/10/06 17:56:13
1836 dnl -------------------------
1837 dnl For c++, check if iostream uses "std::" namespace.
1838 AC_DEFUN([CF_CXX_IOSTREAM_NAMESPACE],[
1839 AC_CHECK_HEADERS(iostream)
1840 if test x"$ac_cv_header_iostream" = xyes ; then
1841         AC_MSG_CHECKING(if iostream uses std-namespace)
1842         AC_TRY_COMPILE([
1843 #include <iostream>
1844 using std::endl;
1845 using std::cerr;],[
1846 cerr << "testing" << endl;
1847 ],[cf_iostream_namespace=yes],[cf_iostream_namespace=no])
1848         AC_MSG_RESULT($cf_iostream_namespace)
1849         if test "$cf_iostream_namespace" = yes ; then
1850                 AC_DEFINE(IOSTREAM_NAMESPACE,1,[Define to 1 if C++ has namespace iostream])
1851         fi
1852 fi
1853 ])dnl
1854 dnl ---------------------------------------------------------------------------
1855 dnl CF_C_INLINE version: 6 updated: 2019/09/07 13:38:36
1856 dnl -----------
1857 dnl Check if the C compiler supports "inline".
1858 dnl $1 is the name of a shell variable to set if inline is supported
1859 dnl $2 is the threshold for gcc 4.x's option controlling maximum inline size
1860 AC_DEFUN([CF_C_INLINE],[
1861 AC_REQUIRE([CF_GCC_VERSION])
1862 AC_C_INLINE
1863 $1=
1864 if test "$ac_cv_c_inline" != no ; then
1865         $1=inline
1866         if test "$INTEL_COMPILER" = yes
1867         then
1868                 :
1869         elif test "$CLANG_COMPILER" = yes
1870         then
1871                 :
1872         elif test "$GCC" = yes
1873         then
1874                 AC_CACHE_CHECK(if $CC supports options to tune inlining,cf_cv_gcc_inline,[
1875                 cf_save_CFLAGS=$CFLAGS
1876                 CFLAGS="$CFLAGS --param max-inline-insns-single=$2"
1877                 AC_TRY_COMPILE([inline int foo(void) { return 1; }],
1878                 [${cf_cv_main_return:-return} foo()],
1879                 [cf_cv_gcc_inline=yes],
1880                 [cf_cv_gcc_inline=no])
1881                 CFLAGS=$cf_save_CFLAGS
1882                 ])
1883                 if test "$cf_cv_gcc_inline" = yes ; then
1884                         CF_ADD_CFLAGS([--param max-inline-insns-single=$2])
1885                 fi
1886         fi
1887 fi
1888 AC_SUBST($1)
1889 ])dnl
1890 dnl ---------------------------------------------------------------------------
1891 dnl CF_DIRNAME version: 5 updated: 2020/12/31 20:19:42
1892 dnl ----------
1893 dnl "dirname" is not portable, so we fake it with a shell script.
1894 AC_DEFUN([CF_DIRNAME],[$1=`echo "$2" | sed -e 's%/[[^/]]*$%%'`])dnl
1895 dnl ---------------------------------------------------------------------------
1896 dnl CF_DIRS_TO_MAKE version: 4 updated: 2021/01/01 13:31:04
1897 dnl ---------------
1898 AC_DEFUN([CF_DIRS_TO_MAKE],
1899 [
1900 DIRS_TO_MAKE="lib"
1901 for cf_item in $cf_list_models
1902 do
1903         CF_OBJ_SUBDIR($cf_item,cf_subdir)
1904         for cf_item2 in $DIRS_TO_MAKE
1905         do
1906                 test "$cf_item2" = "$cf_subdir" && break
1907         done
1908         test ".$cf_item2" != ".$cf_subdir" && DIRS_TO_MAKE="$DIRS_TO_MAKE $cf_subdir"
1909 done
1910 for cf_dir in $DIRS_TO_MAKE
1911 do
1912         test ! -d "$cf_dir" && mkdir "$cf_dir"
1913 done
1914 AC_SUBST(DIRS_TO_MAKE)
1915 ])dnl
1916 dnl ---------------------------------------------------------------------------
1917 dnl CF_DISABLE_ECHO version: 14 updated: 2021/09/04 06:35:04
1918 dnl ---------------
1919 dnl You can always use "make -n" to see the actual options, but it is hard to
1920 dnl pick out/analyze warning messages when the compile-line is long.
1921 dnl
1922 dnl Sets:
1923 dnl     ECHO_LT - symbol to control if libtool is verbose
1924 dnl     ECHO_LD - symbol to prefix "cc -o" lines
1925 dnl     RULE_CC - symbol to put before implicit "cc -c" lines (e.g., .c.o)
1926 dnl     SHOW_CC - symbol to put before explicit "cc -c" lines
1927 dnl     ECHO_CC - symbol to put before any "cc" line
1928 dnl
1929 AC_DEFUN([CF_DISABLE_ECHO],[
1930 AC_MSG_CHECKING(if you want to see long compiling messages)
1931 CF_ARG_DISABLE(echo,
1932         [  --disable-echo          do not display "compiling" commands],
1933         [
1934         ECHO_LT='--silent'
1935         ECHO_LD='@echo linking [$]@;'
1936         RULE_CC='@echo compiling [$]<'
1937         SHOW_CC='@echo compiling [$]@'
1938         ECHO_CC='@'
1939 ],[
1940         ECHO_LT=''
1941         ECHO_LD=''
1942         RULE_CC=''
1943         SHOW_CC=''
1944         ECHO_CC=''
1945 ])
1946 AC_MSG_RESULT($enableval)
1947 AC_SUBST(ECHO_LT)
1948 AC_SUBST(ECHO_LD)
1949 AC_SUBST(RULE_CC)
1950 AC_SUBST(SHOW_CC)
1951 AC_SUBST(ECHO_CC)
1952 ])dnl
1953 dnl ---------------------------------------------------------------------------
1954 dnl CF_DISABLE_GNAT_PROJECTS version: 1 updated: 2014/06/01 11:34:00
1955 dnl ------------------------
1956 AC_DEFUN([CF_DISABLE_GNAT_PROJECTS],[
1957 AC_MSG_CHECKING(if we want to use GNAT projects)
1958 CF_ARG_DISABLE(gnat-projects,
1959         [  --disable-gnat-projects test: disable GNAT projects even if usable],
1960         [enable_gnat_projects=no],
1961         [enable_gnat_projects=yes])
1962 AC_MSG_RESULT($enable_gnat_projects)
1963 ])dnl
1964 dnl ---------------------------------------------------------------------------
1965 dnl CF_DISABLE_LEAKS version: 9 updated: 2021/04/03 16:41:50
1966 dnl ----------------
1967 dnl Combine no-leak checks with the libraries or tools that are used for the
1968 dnl checks.
1969 AC_DEFUN([CF_DISABLE_LEAKS],[
1970
1971 AC_REQUIRE([CF_WITH_DMALLOC])
1972 AC_REQUIRE([CF_WITH_DBMALLOC])
1973 AC_REQUIRE([CF_WITH_VALGRIND])
1974
1975 AC_MSG_CHECKING(if you want to perform memory-leak testing)
1976 AC_ARG_ENABLE(leaks,
1977         [  --disable-leaks         test: free permanent memory, analyze leaks],
1978         [enable_leaks=$enableval],
1979         [enable_leaks=yes])
1980 dnl with_no_leaks is more readable...
1981 if test "x$enable_leaks" = xno; then with_no_leaks=yes; else with_no_leaks=no; fi
1982 AC_MSG_RESULT($with_no_leaks)
1983
1984 if test "$enable_leaks" = no ; then
1985         AC_DEFINE(NO_LEAKS,1,[Define to 1 if you want to perform memory-leak testing.])
1986         AC_DEFINE(YY_NO_LEAKS,1,[Define to 1 if you want to perform memory-leak testing.])
1987 fi
1988 ])dnl
1989 dnl ---------------------------------------------------------------------------
1990 dnl CF_DISABLE_LIBTOOL_VERSION version: 3 updated: 2015/04/17 21:13:04
1991 dnl --------------------------
1992 dnl Check if we should use the libtool 1.5 feature "-version-number" instead of
1993 dnl the older "-version-info" feature.  The newer feature allows us to use
1994 dnl version numbering on shared libraries which make them compatible with
1995 dnl various systems.
1996 AC_DEFUN([CF_DISABLE_LIBTOOL_VERSION],
1997 [
1998 AC_MSG_CHECKING(if libtool -version-number should be used)
1999 CF_ARG_DISABLE(libtool-version,
2000         [  --disable-libtool-version  enable to use libtool's incompatible naming scheme],
2001         [cf_libtool_version=no],
2002         [cf_libtool_version=yes])
2003 AC_MSG_RESULT($cf_libtool_version)
2004
2005 if test "$cf_libtool_version" = yes ; then
2006         LIBTOOL_VERSION="-version-number"
2007 else
2008         LIBTOOL_VERSION="-version-info"
2009         case "x$VERSION" in
2010         (x)
2011                 AC_MSG_WARN(VERSION was not set)
2012                 ;;
2013         (x*.*.*)
2014                 ABI_VERSION="$VERSION"
2015                 CF_VERBOSE(ABI_VERSION: $ABI_VERSION)
2016                 ;;
2017         (x*:*:*)
2018                 ABI_VERSION=`echo "$VERSION" | sed -e 's/:/./g'`
2019                 CF_VERBOSE(ABI_VERSION: $ABI_VERSION)
2020                 ;;
2021         (*)
2022                 AC_MSG_WARN(unexpected VERSION value: $VERSION)
2023                 ;;
2024         esac
2025 fi
2026
2027 AC_SUBST(ABI_VERSION)
2028 AC_SUBST(LIBTOOL_VERSION)
2029 ])dnl
2030 dnl ---------------------------------------------------------------------------
2031 dnl CF_DISABLE_RPATH_HACK version: 3 updated: 2021/01/05 20:14:44
2032 dnl ---------------------
2033 dnl The rpath-hack makes it simpler to build programs, particularly with the
2034 dnl *BSD ports which may have essential libraries in unusual places.  But it
2035 dnl can interfere with building an executable for the base system.  Use this
2036 dnl option in that case.
2037 AC_DEFUN([CF_DISABLE_RPATH_HACK],
2038 [
2039 AC_MSG_CHECKING(if rpath-hack should be disabled)
2040 CF_ARG_DISABLE(rpath-hack,
2041         [  --disable-rpath-hack    don't add rpath options for additional libraries],
2042         [enable_rpath_hack=no],
2043         [enable_rpath_hack=yes])
2044 dnl TODO - drop cf_disable_rpath_hack
2045 if test "x$enable_rpath_hack" = xno; then cf_disable_rpath_hack=yes; else cf_disable_rpath_hack=no; fi
2046 AC_MSG_RESULT($cf_disable_rpath_hack)
2047
2048 if test "$enable_rpath_hack" = yes ; then
2049         CF_RPATH_HACK
2050 fi
2051 ])
2052 dnl ---------------------------------------------------------------------------
2053 dnl CF_ENABLE_BROKEN_LINKER version: 2 updated: 2021/01/02 17:09:14
2054 dnl -----------------------
2055 dnl Some linkers cannot reference a data-only object.  Cygwin used to be one.
2056 dnl This usually follows CF_LINK_DATAONLY, but is not required in case we need
2057 dnl an unconditional feature.
2058 AC_DEFUN([CF_ENABLE_BROKEN_LINKER],[
2059
2060 AC_MSG_CHECKING(if you want broken-linker support code)
2061 AC_ARG_ENABLE(broken_linker,
2062         [  --enable-broken_linker  compile with broken-linker support code],
2063         [with_broken_linker=$enableval],
2064         [with_broken_linker=no])
2065 AC_MSG_RESULT($with_broken_linker)
2066
2067 : "${BROKEN_LINKER:=0}"
2068 if test "x$with_broken_linker" = xyes ; then
2069         AC_DEFINE(BROKEN_LINKER,1,[Define to 1 to work around linkers which cannot link data-only modules])
2070         BROKEN_LINKER=1
2071 fi
2072 AC_SUBST(BROKEN_LINKER)
2073 ])dnl
2074 dnl ---------------------------------------------------------------------------
2075 dnl CF_ENABLE_PC_FILES version: 16 updated: 2021/11/20 12:48:37
2076 dnl ------------------
2077 dnl This is the "--enable-pc-files" option, which is available if there is a
2078 dnl pkg-config configuration on the local machine.
2079 AC_DEFUN([CF_ENABLE_PC_FILES],[
2080 AC_REQUIRE([CF_PKG_CONFIG])
2081 AC_REQUIRE([CF_WITH_PKG_CONFIG_LIBDIR])
2082
2083 if test "x$PKG_CONFIG" != xnone
2084 then
2085         AC_MSG_CHECKING(if we should install .pc files for $PKG_CONFIG)
2086 else
2087         AC_MSG_CHECKING(if we should install .pc files)
2088 fi
2089
2090 AC_ARG_ENABLE(pc-files,
2091         [  --enable-pc-files       generate and install .pc files for pkg-config],
2092         [enable_pc_files=$enableval],
2093         [enable_pc_files=no])
2094 AC_MSG_RESULT($enable_pc_files)
2095
2096 if test "x$enable_pc_files" != xno
2097 then
2098         MAKE_PC_FILES=
2099         case "x$PKG_CONFIG_LIBDIR" in
2100         (xno|xnone|xyes|x)
2101                 AC_MSG_WARN(no PKG_CONFIG_LIBDIR was found)
2102                 ;;
2103         (*)
2104                 cf_pkg_config_libdir="$PKG_CONFIG_LIBDIR"
2105                 CF_PATH_SYNTAX(cf_pkg_config_libdir)
2106                 ;;
2107         esac
2108 else
2109         MAKE_PC_FILES="#"
2110 fi
2111 AC_SUBST(MAKE_PC_FILES)
2112 ])dnl
2113 dnl ---------------------------------------------------------------------------
2114 dnl CF_ENABLE_RPATH version: 2 updated: 2010/03/27 18:39:42
2115 dnl ---------------
2116 dnl Check if the rpath option should be used, setting cache variable
2117 dnl cf_cv_enable_rpath if so.
2118 AC_DEFUN([CF_ENABLE_RPATH],
2119 [
2120 AC_MSG_CHECKING(if rpath option should be used)
2121 AC_ARG_ENABLE(rpath,
2122 [  --enable-rpath          use rpath option when generating shared libraries],
2123 [cf_cv_enable_rpath=$enableval],
2124 [cf_cv_enable_rpath=no])
2125 AC_MSG_RESULT($cf_cv_enable_rpath)
2126 ])dnl
2127 dnl ---------------------------------------------------------------------------
2128 dnl CF_ENABLE_STRING_HACKS version: 6 updated: 2021/01/05 19:23:48
2129 dnl ----------------------
2130 dnl On a few platforms, the compiler and/or loader nags with untruthful
2131 dnl comments stating that "most" uses of strcat/strcpy/sprintf are incorrect,
2132 dnl and implying that most uses of the recommended alternatives are correct.
2133 dnl
2134 dnl Factually speaking, no one has actually counted the number of uses of these
2135 dnl functions versus the total of incorrect uses.  Samples of a few thousand
2136 dnl instances are meaningless compared to the hundreds of millions of lines of
2137 dnl existing C code.
2138 dnl
2139 dnl strlcat/strlcpy are (as of 2012) non-standard, and are available on some
2140 dnl platforms, in implementations of varying quality.  Likewise, snprintf is
2141 dnl standard - but evolved through phases, and older implementations are likely
2142 dnl to yield surprising results, as documented in manpages on various systems.
2143 AC_DEFUN([CF_ENABLE_STRING_HACKS],
2144 [
2145 AC_MSG_CHECKING(if you want to work around bogus compiler/loader warnings)
2146 AC_ARG_ENABLE(string-hacks,
2147         [  --enable-string-hacks   work around bogus compiler/loader warnings],
2148         [enable_string_hacks=$enableval],
2149         [enable_string_hacks=no])
2150 AC_MSG_RESULT($enable_string_hacks)
2151
2152 if test "x$enable_string_hacks" = "xyes"; then
2153         AC_DEFINE(USE_STRING_HACKS,1,[Define to 1 to work around bogus compiler/loader warnings])
2154         AC_MSG_WARN(enabling string-hacks to work around bogus compiler/loader warnings)
2155         AC_CHECK_FUNC(strlcat,[
2156                 AC_DEFINE(HAVE_STRLCAT,1,[Define to 1 if we have strlcat function])
2157                 ],[
2158                 AC_CHECK_LIB(bsd,strlcat,[
2159                         CF_ADD_LIB(bsd)
2160                         AC_CHECK_HEADERS(bsd/string.h)
2161                         AC_DEFINE(HAVE_STRLCAT,1,[Define to 1 if we have strlcat function])
2162                         ])
2163                 ])
2164         AC_CHECK_FUNCS( strlcpy snprintf )
2165 fi
2166 ])dnl
2167 dnl ---------------------------------------------------------------------------
2168 dnl CF_ENABLE_WARNINGS version: 9 updated: 2021/01/05 19:40:50
2169 dnl ------------------
2170 dnl Configure-option to enable gcc warnings
2171 dnl
2172 dnl $1 = extra options to add, if supported
2173 dnl $2 = option for checking attributes.  By default, this is done when
2174 dnl      warnings are enabled.  For other values:
2175 dnl      yes: always do this, e.g., to use in generated library-headers
2176 dnl      no: never do this
2177 AC_DEFUN([CF_ENABLE_WARNINGS],[
2178 if test "$GCC" = yes || test "$GXX" = yes
2179 then
2180 CF_FIX_WARNINGS(CFLAGS)
2181 CF_FIX_WARNINGS(CPPFLAGS)
2182 CF_FIX_WARNINGS(LDFLAGS)
2183 AC_MSG_CHECKING(if you want to turn on gcc warnings)
2184 CF_ARG_ENABLE(warnings,
2185         [  --enable-warnings       test: turn on gcc compiler warnings],
2186         [enable_warnings=yes],
2187         [enable_warnings=no])
2188 AC_MSG_RESULT($enable_warnings)
2189 if test "$enable_warnings" = "yes"
2190 then
2191         ifelse($2,,[CF_GCC_ATTRIBUTES])
2192         CF_GCC_WARNINGS($1)
2193 fi
2194 ifelse($2,yes,[CF_GCC_ATTRIBUTES])
2195 fi
2196 ])dnl
2197 dnl ---------------------------------------------------------------------------
2198 dnl CF_ERRNO version: 5 updated: 1997/11/30 12:44:39
2199 dnl --------
2200 dnl Check if 'errno' is declared in <errno.h>
2201 AC_DEFUN([CF_ERRNO],
2202 [
2203 CF_CHECK_ERRNO(errno)
2204 ])dnl
2205 dnl ---------------------------------------------------------------------------
2206 dnl CF_ETIP_DEFINES version: 6 updated: 2021/01/02 17:09:14
2207 dnl ---------------
2208 dnl Test for conflicting definitions of exception in gcc 2.8.0, etc., between
2209 dnl math.h and builtin.h, only for ncurses
2210 AC_DEFUN([CF_ETIP_DEFINES],
2211 [
2212 AC_MSG_CHECKING(for special defines needed for etip.h)
2213 cf_save_CXXFLAGS="$CXXFLAGS"
2214 cf_result="none"
2215
2216 # etip.h includes ncurses.h which includes ncurses_dll.h
2217 # But ncurses_dll.h is generated - fix here.
2218 test -d include || mkdir include
2219 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
2220
2221 for cf_math in "" MATH_H
2222 do
2223 for cf_excp in "" MATH_EXCEPTION
2224 do
2225         CXXFLAGS="$cf_save_CXXFLAGS -I${srcdir}/c++ -I${srcdir}/menu -Iinclude -I${srcdir}/include"
2226         test -n "$cf_math" && CXXFLAGS="$CXXFLAGS -DETIP_NEEDS_${cf_math}"
2227         test -n "$cf_excp" && CXXFLAGS="$CXXFLAGS -DETIP_NEEDS_${cf_excp}"
2228 AC_TRY_COMPILE([
2229 #include <etip.h.in>
2230 ],[],[
2231         test -n "$cf_math" && AC_DEFINE_UNQUOTED(ETIP_NEEDS_${cf_math})
2232         test -n "$cf_excp" && AC_DEFINE_UNQUOTED(ETIP_NEEDS_${cf_excp})
2233         cf_result="$cf_math $cf_excp"
2234         break 2
2235 ],[])
2236 done
2237 done
2238 AC_MSG_RESULT($cf_result)
2239 CXXFLAGS="$cf_save_CXXFLAGS"
2240 ])
2241 dnl ---------------------------------------------------------------------------
2242 dnl CF_FIND_LINKAGE version: 22 updated: 2020/12/31 20:19:42
2243 dnl ---------------
2244 dnl Find a library (specifically the linkage used in the code fragment),
2245 dnl searching for it if it is not already in the library path.
2246 dnl See also CF_ADD_SEARCHPATH.
2247 dnl
2248 dnl Parameters (4-on are optional):
2249 dnl     $1 = headers for library entrypoint
2250 dnl     $2 = code fragment for library entrypoint
2251 dnl     $3 = the library name without the "-l" option or ".so" suffix.
2252 dnl     $4 = action to perform if successful (default: update CPPFLAGS, etc)
2253 dnl     $5 = action to perform if not successful
2254 dnl     $6 = module name, if not the same as the library name
2255 dnl     $7 = extra libraries
2256 dnl
2257 dnl Sets these variables:
2258 dnl     $cf_cv_find_linkage_$3 - yes/no according to whether linkage is found
2259 dnl     $cf_cv_header_path_$3 - include-directory if needed
2260 dnl     $cf_cv_library_path_$3 - library-directory if needed
2261 dnl     $cf_cv_library_file_$3 - library-file if needed, e.g., -l$3
2262 AC_DEFUN([CF_FIND_LINKAGE],[
2263
2264 # If the linkage is not already in the $CPPFLAGS/$LDFLAGS configuration, these
2265 # will be set on completion of the AC_TRY_LINK below.
2266 cf_cv_header_path_$3=
2267 cf_cv_library_path_$3=
2268
2269 CF_MSG_LOG([Starting [FIND_LINKAGE]($3,$6)])
2270
2271 cf_save_LIBS="$LIBS"
2272
2273 AC_TRY_LINK([$1],[$2],[
2274         cf_cv_find_linkage_$3=yes
2275         cf_cv_header_path_$3=/usr/include
2276         cf_cv_library_path_$3=/usr/lib
2277 ],[
2278
2279 LIBS="-l$3 $7 $cf_save_LIBS"
2280
2281 AC_TRY_LINK([$1],[$2],[
2282         cf_cv_find_linkage_$3=yes
2283         cf_cv_header_path_$3=/usr/include
2284         cf_cv_library_path_$3=/usr/lib
2285         cf_cv_library_file_$3="-l$3"
2286 ],[
2287         cf_cv_find_linkage_$3=no
2288         LIBS="$cf_save_LIBS"
2289
2290         CF_VERBOSE(find linkage for $3 library)
2291         CF_MSG_LOG([Searching for headers in [FIND_LINKAGE]($3,$6)])
2292
2293         cf_save_CPPFLAGS="$CPPFLAGS"
2294         cf_test_CPPFLAGS="$CPPFLAGS"
2295
2296         CF_HEADER_PATH(cf_search,ifelse([$6],,[$3],[$6]))
2297         for cf_cv_header_path_$3 in $cf_search
2298         do
2299                 if test -d "$cf_cv_header_path_$3" ; then
2300                         CF_VERBOSE(... testing $cf_cv_header_path_$3)
2301                         CPPFLAGS="$cf_save_CPPFLAGS"
2302                         CF_APPEND_TEXT(CPPFLAGS,-I$cf_cv_header_path_$3)
2303                         AC_TRY_COMPILE([$1],[$2],[
2304                                 CF_VERBOSE(... found $3 headers in $cf_cv_header_path_$3)
2305                                 cf_cv_find_linkage_$3=maybe
2306                                 cf_test_CPPFLAGS="$CPPFLAGS"
2307                                 break],[
2308                                 CPPFLAGS="$cf_save_CPPFLAGS"
2309                                 ])
2310                 fi
2311         done
2312
2313         if test "$cf_cv_find_linkage_$3" = maybe ; then
2314
2315                 CF_MSG_LOG([Searching for $3 library in [FIND_LINKAGE]($3,$6)])
2316
2317                 cf_save_LIBS="$LIBS"
2318                 cf_save_LDFLAGS="$LDFLAGS"
2319
2320                 ifelse([$6],,,[
2321                 CPPFLAGS="$cf_test_CPPFLAGS"
2322                 LIBS="-l$3 $7 $cf_save_LIBS"
2323                 AC_TRY_LINK([$1],[$2],[
2324                         CF_VERBOSE(... found $3 library in system)
2325                         cf_cv_find_linkage_$3=yes])
2326                         CPPFLAGS="$cf_save_CPPFLAGS"
2327                         LIBS="$cf_save_LIBS"
2328                         ])
2329
2330                 if test "$cf_cv_find_linkage_$3" != yes ; then
2331                         CF_LIBRARY_PATH(cf_search,$3)
2332                         for cf_cv_library_path_$3 in $cf_search
2333                         do
2334                                 if test -d "$cf_cv_library_path_$3" ; then
2335                                         CF_VERBOSE(... testing $cf_cv_library_path_$3)
2336                                         CPPFLAGS="$cf_test_CPPFLAGS"
2337                                         LIBS="-l$3 $7 $cf_save_LIBS"
2338                                         LDFLAGS="$cf_save_LDFLAGS -L$cf_cv_library_path_$3"
2339                                         AC_TRY_LINK([$1],[$2],[
2340                                         CF_VERBOSE(... found $3 library in $cf_cv_library_path_$3)
2341                                         cf_cv_find_linkage_$3=yes
2342                                         cf_cv_library_file_$3="-l$3"
2343                                         break],[
2344                                         CPPFLAGS="$cf_save_CPPFLAGS"
2345                                         LIBS="$cf_save_LIBS"
2346                                         LDFLAGS="$cf_save_LDFLAGS"
2347                                         ])
2348                                 fi
2349                         done
2350                         CPPFLAGS="$cf_save_CPPFLAGS"
2351                         LDFLAGS="$cf_save_LDFLAGS"
2352                 fi
2353
2354         else
2355                 cf_cv_find_linkage_$3=no
2356         fi
2357         ],$7)
2358 ])
2359
2360 LIBS="$cf_save_LIBS"
2361
2362 if test "$cf_cv_find_linkage_$3" = yes ; then
2363 ifelse([$4],,[
2364         CF_ADD_INCDIR($cf_cv_header_path_$3)
2365         CF_ADD_LIBDIR($cf_cv_library_path_$3)
2366         CF_ADD_LIB($3)
2367 ],[$4])
2368 else
2369 ifelse([$5],,AC_MSG_WARN(Cannot find $3 library),[$5])
2370 fi
2371 ])dnl
2372 dnl ---------------------------------------------------------------------------
2373 dnl CF_FIND_SUB_INCDIR version: 3 updated: 2021/01/01 13:31:04
2374 dnl ------------------
2375 dnl Find an include-directory with the given leaf-name.  This is useful for
2376 dnl example with FreeBSD ports, which use this convention to distinguish
2377 dnl different versions of the same port.
2378 AC_DEFUN([CF_FIND_SUB_INCDIR],[
2379         CF_SUBDIR_PATH(cf_search,$1,include)
2380         for cf_item in $cf_search
2381         do
2382                 case "$cf_item" in
2383                 (*/$1)
2384                         CF_ADD_INCDIR($cf_item)
2385                         ;;
2386                 esac
2387         done
2388 ])dnl
2389 dnl ---------------------------------------------------------------------------
2390 dnl CF_FIND_SUB_LIBDIR version: 3 updated: 2021/01/01 13:31:04
2391 dnl ------------------
2392 dnl Find a library-directory with the given leaf-name.  This is useful for
2393 dnl example with FreeBSD ports, which use this convention to distinguish
2394 dnl different versions of the same port.
2395 AC_DEFUN([CF_FIND_SUB_LIBDIR],[
2396         CF_SUBDIR_PATH(cf_search,$1,lib)
2397         for cf_item in $cf_search
2398         do
2399                 case "$cf_item" in
2400                 (*/$1)
2401                         CF_ADD_LIBDIR($cf_item)
2402                         ;;
2403                 esac
2404         done
2405 ])dnl
2406 dnl ---------------------------------------------------------------------------
2407 dnl CF_FIXUP_ADAFLAGS version: 2 updated: 2015/04/17 21:13:04
2408 dnl -----------------
2409 dnl make ADAFLAGS consistent with CFLAGS
2410 AC_DEFUN([CF_FIXUP_ADAFLAGS],[
2411         AC_MSG_CHECKING(optimization options for ADAFLAGS)
2412         case "$CFLAGS" in
2413         (*-g*)
2414                 CF_ADD_ADAFLAGS(-g)
2415                 ;;
2416         esac
2417         case "$CFLAGS" in
2418         (*-O*)
2419                 cf_O_flag=`echo "$CFLAGS" |sed -e 's/^.*-O/-O/' -e 's/[[        ]].*//'`
2420                 CF_ADD_ADAFLAGS($cf_O_flag)
2421                 ;;
2422         esac
2423         AC_MSG_RESULT($ADAFLAGS)
2424 ])dnl
2425 dnl ---------------------------------------------------------------------------
2426 dnl CF_FIX_WARNINGS version: 3 updated: 2020/12/31 18:40:20
2427 dnl ---------------
2428 dnl Warning flags do not belong in CFLAGS, CPPFLAGS, etc.  Any of gcc's
2429 dnl "-Werror" flags can interfere with configure-checks.  Those go into
2430 dnl EXTRA_CFLAGS.
2431 dnl
2432 dnl $1 = variable name to repair
2433 define([CF_FIX_WARNINGS],[
2434 if test "$GCC" = yes || test "$GXX" = yes
2435 then
2436         case [$]$1 in
2437         (*-Werror=*)
2438                 CF_VERBOSE(repairing $1: [$]$1)
2439                 cf_temp_flags=
2440                 for cf_temp_scan in [$]$1
2441                 do
2442                         case "x$cf_temp_scan" in
2443                         (x-Werror=*)
2444                                 CF_APPEND_TEXT(EXTRA_CFLAGS,$cf_temp_scan)
2445                                 ;;
2446                         (*)
2447                                 CF_APPEND_TEXT(cf_temp_flags,$cf_temp_scan)
2448                                 ;;
2449                         esac
2450                 done
2451                 $1="$cf_temp_flags"
2452                 CF_VERBOSE(... fixed [$]$1)
2453                 CF_VERBOSE(... extra $EXTRA_CFLAGS)
2454                 ;;
2455         esac
2456 fi
2457 AC_SUBST(EXTRA_CFLAGS)
2458 ])dnl
2459 dnl ---------------------------------------------------------------------------
2460 dnl CF_FOPEN_BIN_R version: 2 updated: 2019/12/31 08:53:54
2461 dnl --------------
2462 dnl Check if fopen works when the "b" (binary) flag is added to the mode
2463 dnl parameter.  POSIX ignores the "b", which c89 specified.  Some very old
2464 dnl systems do not accept it.
2465 AC_DEFUN([CF_FOPEN_BIN_R],[
2466 AC_CACHE_CHECK(if fopen accepts explicit binary mode,cf_cv_fopen_bin_r,[
2467         AC_TRY_RUN([
2468 #include <stdio.h>
2469 int main(void) {
2470         FILE *fp = fopen("conftest.tmp", "wb");
2471         int rc = 0;
2472         if (fp != 0) {
2473                 int p, q;
2474                 for (p = 0; p < 256; ++p) {
2475                         fputc(p, fp);
2476                 }
2477                 fclose(fp);
2478                 fp = fopen("conftest.tmp", "rb");
2479                 if (fp != 0) {
2480                         for (p = 0; p < 256; ++p) {
2481                                 q = fgetc(fp);
2482                                 if (q != p) {
2483                                         rc = 1;
2484                                         break;
2485                                 }
2486                         }
2487                 } else {
2488                         rc = 1;
2489                 }
2490         } else {
2491                 rc = 1;
2492         }
2493         ${cf_cv_main_return:-return} (rc);
2494 }
2495 ],
2496                 [cf_cv_fopen_bin_r=yes],
2497                 [cf_cv_fopen_bin_r=no],
2498                 [cf_cv_fopen_bin_r=unknown])
2499 ])
2500 test "x$cf_cv_fopen_bin_r" != xno && AC_DEFINE(USE_FOPEN_BIN_R,1,[Define to 1 if fopen accepts explicit binary mode])
2501 ])dnl
2502 dnl ---------------------------------------------------------------------------
2503 dnl CF_FORGET_TOOL version: 1 updated: 2013/04/06 18:03:09
2504 dnl --------------
2505 dnl Forget that we saw the given tool.
2506 AC_DEFUN([CF_FORGET_TOOL],[
2507 unset ac_cv_prog_ac_ct_$1
2508 unset ac_ct_$1
2509 unset $1
2510 ])dnl
2511 dnl ---------------------------------------------------------------------------
2512 dnl CF_FUNC_DLSYM version: 4 updated: 2015/09/12 14:46:44
2513 dnl -------------
2514 dnl Test for dlsym() and related functions, as well as libdl.
2515 dnl
2516 dnl Sets
2517 dnl     $cf_have_dlsym
2518 dnl     $cf_have_libdl
2519 AC_DEFUN([CF_FUNC_DLSYM],[
2520 cf_have_dlsym=no
2521 AC_CHECK_FUNC(dlsym,cf_have_dlsym=yes,[
2522
2523 cf_have_libdl=no
2524 AC_CHECK_LIB(dl,dlsym,[
2525         cf_have_dlsym=yes
2526         cf_have_libdl=yes])])
2527
2528 if test "$cf_have_dlsym" = yes ; then
2529         test "$cf_have_libdl" = yes && { CF_ADD_LIB(dl) }
2530
2531         AC_MSG_CHECKING(whether able to link to dl*() functions)
2532         AC_TRY_LINK([#include <dlfcn.h>],[
2533                 void *obj;
2534                 if ((obj = dlopen("filename", 0)) != 0) {
2535                         if (dlsym(obj, "symbolname") == 0) {
2536                         dlclose(obj);
2537                         }
2538                 }],[
2539                 AC_DEFINE(HAVE_LIBDL,1,[Define to 1 if we have dl library])],[
2540                 AC_MSG_ERROR(Cannot link test program for libdl)])
2541         AC_MSG_RESULT(ok)
2542 else
2543         AC_MSG_ERROR(Cannot find dlsym function)
2544 fi
2545 ])
2546 dnl ---------------------------------------------------------------------------
2547 dnl CF_FUNC_MEMMOVE version: 9 updated: 2017/01/21 11:06:25
2548 dnl ---------------
2549 dnl Check for memmove, or a bcopy that can handle overlapping copy.  If neither
2550 dnl is found, add our own version of memmove to the list of objects.
2551 AC_DEFUN([CF_FUNC_MEMMOVE],
2552 [
2553 AC_CHECK_FUNC(memmove,,[
2554 AC_CHECK_FUNC(bcopy,[
2555         AC_CACHE_CHECK(if bcopy does overlapping moves,cf_cv_good_bcopy,[
2556                 AC_TRY_RUN([
2557 int main(void) {
2558         static char data[] = "abcdefghijklmnopqrstuwwxyz";
2559         char temp[40];
2560         bcopy(data, temp, sizeof(data));
2561         bcopy(temp+10, temp, 15);
2562         bcopy(temp+5, temp+15, 10);
2563         ${cf_cv_main_return:-return} (strcmp(temp, "klmnopqrstuwwxypqrstuwwxyz"));
2564 }
2565                 ],
2566                 [cf_cv_good_bcopy=yes],
2567                 [cf_cv_good_bcopy=no],
2568                 [cf_cv_good_bcopy=unknown])
2569                 ])
2570         ],[cf_cv_good_bcopy=no])
2571         if test "$cf_cv_good_bcopy" = yes ; then
2572                 AC_DEFINE(USE_OK_BCOPY,1,[Define to 1 to use bcopy when memmove is unavailable])
2573         else
2574                 AC_DEFINE(USE_MY_MEMMOVE,1,[Define to 1 to use replacement function when memmove is unavailable])
2575         fi
2576 ])])dnl
2577 dnl ---------------------------------------------------------------------------
2578 dnl CF_FUNC_NANOSLEEP version: 5 updated: 2017/01/21 11:06:25
2579 dnl -----------------
2580 dnl Check for existence of workable nanosleep() function.  Some systems, e.g.,
2581 dnl AIX 4.x, provide a non-working version.
2582 AC_DEFUN([CF_FUNC_NANOSLEEP],[
2583 AC_CACHE_CHECK(if nanosleep really works,cf_cv_func_nanosleep,[
2584 AC_TRY_RUN([
2585 #include <stdio.h>
2586 #include <errno.h>
2587 #include <time.h>
2588
2589 #ifdef HAVE_SYS_TIME_H
2590 #include <sys/time.h>
2591 #endif
2592
2593 int main(void) {
2594         struct timespec ts1, ts2;
2595         int code;
2596         ts1.tv_sec  = 0;
2597         ts1.tv_nsec = 750000000;
2598         ts2.tv_sec  = 0;
2599         ts2.tv_nsec = 0;
2600         errno = 0;
2601         code = nanosleep(&ts1, &ts2); /* on failure errno is ENOSYS. */
2602         ${cf_cv_main_return:-return}(code != 0);
2603 }
2604 ],
2605         [cf_cv_func_nanosleep=yes],
2606         [cf_cv_func_nanosleep=no],
2607         [cf_cv_func_nanosleep=unknown])])
2608
2609 test "$cf_cv_func_nanosleep" = "yes" && AC_DEFINE(HAVE_NANOSLEEP,1,[Define to 1 if we have nanosleep()])
2610 ])
2611 dnl ---------------------------------------------------------------------------
2612 dnl CF_FUNC_OPENPTY version: 6 updated: 2021/01/01 13:31:04
2613 dnl ---------------
2614 dnl Check for openpty() function, along with <pty.h> header.  It may need the
2615 dnl "util" library as well.
2616 AC_DEFUN([CF_FUNC_OPENPTY],
2617 [
2618 AC_CHECK_LIB(util,openpty,cf_cv_lib_util=yes,cf_cv_lib_util=no)
2619 AC_CACHE_CHECK(for openpty header,cf_cv_func_openpty,[
2620         cf_save_LIBS="$LIBS"
2621         test "$cf_cv_lib_util" = yes && { CF_ADD_LIB(util) }
2622         for cf_header in pty.h libutil.h util.h
2623         do
2624         AC_TRY_LINK([
2625 #include <$cf_header>
2626 ],[
2627         int x = openpty((int *)0, (int *)0, (char *)0,
2628                                    (struct termios *)0, (struct winsize *)0);
2629 ],[
2630                 cf_cv_func_openpty=$cf_header
2631                 break
2632 ],[
2633                 cf_cv_func_openpty=no
2634 ])
2635         done
2636         LIBS="$cf_save_LIBS"
2637 ])
2638 ])dnl
2639 dnl ---------------------------------------------------------------------------
2640 dnl CF_FUNC_POLL version: 10 updated: 2021/01/04 19:13:57
2641 dnl ------------
2642 dnl See if the poll function really works.  Some platforms have poll(), but
2643 dnl it does not work for terminals or files.
2644 AC_DEFUN([CF_FUNC_POLL],[
2645 tty >/dev/null 2>&1 || { AC_CHECK_FUNCS(posix_openpt) }
2646 AC_CACHE_CHECK(if poll really works,cf_cv_working_poll,[
2647 AC_TRY_RUN([
2648 #include <stdlib.h>
2649 #include <stdio.h>
2650 #include <unistd.h>
2651 #include <fcntl.h>
2652 #ifdef HAVE_POLL_H
2653 #include <poll.h>
2654 #else
2655 #include <sys/poll.h>
2656 #endif
2657 int main(void) {
2658         struct pollfd myfds;
2659         int ret;
2660
2661         /* check for Darwin bug with respect to "devices" */
2662         myfds.fd = open("/dev/null", 1);        /* O_WRONLY */
2663         if (myfds.fd < 0)
2664                 myfds.fd = 0;
2665         myfds.events = POLLIN;
2666         myfds.revents = 0;
2667
2668         ret = poll(&myfds, 1, 100);
2669
2670         if (ret < 0 || (myfds.revents & POLLNVAL)) {
2671                 ret = -1;
2672         } else {
2673                 int fd = 0;
2674                 if (!isatty(fd)) {
2675                         fd = open("/dev/tty", 2);       /* O_RDWR */
2676                 }
2677 #ifdef HAVE_POSIX_OPENPT
2678                 if (fd < 0) {
2679                         fd = posix_openpt(O_RDWR);
2680                 }
2681 #endif
2682
2683                 if (fd >= 0) {
2684                         /* also check with standard input */
2685                         myfds.fd = fd;
2686                         myfds.events = POLLIN;
2687                         myfds.revents = 0;
2688                         ret = poll(&myfds, 1, 100);
2689                 } else {
2690                         ret = -1;
2691                 }
2692         }
2693         ${cf_cv_main_return:-return}(ret < 0);
2694 }],
2695         [cf_cv_working_poll=yes],
2696         [cf_cv_working_poll=no],
2697         [cf_cv_working_poll=unknown])])
2698 test "$cf_cv_working_poll" = "yes" && AC_DEFINE(HAVE_WORKING_POLL,1,[Define to 1 if the poll function seems to work])
2699 ])dnl
2700 dnl ---------------------------------------------------------------------------
2701 dnl CF_FUNC_TERMIOS version: 3 updated: 2012/10/06 17:56:13
2702 dnl ---------------
2703 dnl Some old/broken variations define tcgetattr() only as a macro in
2704 dnl termio(s).h
2705 AC_DEFUN([CF_FUNC_TERMIOS],[
2706 AC_REQUIRE([CF_STRUCT_TERMIOS])
2707 AC_CACHE_CHECK(for tcgetattr, cf_cv_have_tcgetattr,[
2708 AC_TRY_LINK([
2709 #include <sys/types.h>
2710 #ifdef HAVE_UNISTD_H
2711 #include <unistd.h>
2712 #endif
2713 #ifdef HAVE_TERMIOS_H
2714 #include <termios.h>
2715 #define TTY struct termios
2716 #else
2717 #ifdef HAVE_TERMIO_H
2718 #include <termio.h>
2719 #define TTY struct termio
2720 #endif
2721 #endif
2722 ],[
2723 TTY foo;
2724 tcgetattr(1, &foo);],
2725 [cf_cv_have_tcgetattr=yes],
2726 [cf_cv_have_tcgetattr=no])])
2727 test "$cf_cv_have_tcgetattr" = yes && AC_DEFINE(HAVE_TCGETATTR,1,[Define to 1 if we have tcgetattr])
2728 ])dnl
2729 dnl ---------------------------------------------------------------------------
2730 dnl CF_FUNC_VSSCANF version: 7 updated: 2021/01/01 13:31:04
2731 dnl ---------------
2732 dnl Check for vsscanf() function, which is in c9x but generally not in earlier
2733 dnl versions of C.  It is in the GNU C library, and can often be simulated by
2734 dnl other functions.
2735 AC_DEFUN([CF_FUNC_VSSCANF],
2736 [
2737 AC_CACHE_CHECK(for vsscanf function or workaround,cf_cv_func_vsscanf,[
2738 AC_TRY_LINK([
2739 #include <stdarg.h>
2740 #include <stdio.h>],[
2741         va_list ap;
2742         vsscanf("from", "%d", ap)],[cf_cv_func_vsscanf=vsscanf],[
2743 AC_TRY_LINK([
2744 #include <stdarg.h>
2745 #include <stdio.h>],[
2746         FILE strbuf;
2747         char *str = "from";
2748
2749         strbuf._flag = _IOREAD;
2750         strbuf._ptr = strbuf._base = (unsigned char *) str;
2751         strbuf._cnt = strlen(str);
2752         strbuf._file = _NFILE;
2753         return (vfscanf(&strbuf, "%d", ap))],[cf_cv_func_vsscanf=vfscanf],[
2754 AC_TRY_LINK([
2755 #include <stdarg.h>
2756 #include <stdio.h>],[
2757         FILE strbuf;
2758         char *str = "from";
2759
2760         strbuf._flag = _IOREAD;
2761         strbuf._ptr = strbuf._base = (unsigned char *) str;
2762         strbuf._cnt = strlen(str);
2763         strbuf._file = _NFILE;
2764         return (_doscan(&strbuf, "%d", ap))],[cf_cv_func_vsscanf=_doscan],[
2765 cf_cv_func_vsscanf=no])])])])
2766
2767 case "$cf_cv_func_vsscanf" in
2768 (vsscanf) AC_DEFINE(HAVE_VSSCANF,1,[Define to 1 if we have vsscanf]);;
2769 (vfscanf) AC_DEFINE(HAVE_VFSCANF,1,[Define to 1 if we have vfscanf]);;
2770 (_doscan) AC_DEFINE(HAVE__DOSCAN,1,[Define to 1 if we have _doscan]);;
2771 esac
2772
2773 ])dnl
2774 dnl ---------------------------------------------------------------------------
2775 dnl CF_GCC_ATTRIBUTES version: 24 updated: 2021/03/20 12:00:25
2776 dnl -----------------
2777 dnl Test for availability of useful gcc __attribute__ directives to quiet
2778 dnl compiler warnings.  Though useful, not all are supported -- and contrary
2779 dnl to documentation, unrecognized directives cause older compilers to barf.
2780 AC_DEFUN([CF_GCC_ATTRIBUTES],
2781 [AC_REQUIRE([AC_PROG_FGREP])dnl
2782 AC_REQUIRE([CF_C11_NORETURN])dnl
2783
2784 if test "$GCC" = yes || test "$GXX" = yes
2785 then
2786 cat > conftest.i <<EOF
2787 #ifndef GCC_PRINTF
2788 #define GCC_PRINTF 0
2789 #endif
2790 #ifndef GCC_SCANF
2791 #define GCC_SCANF 0
2792 #endif
2793 #ifndef GCC_NORETURN
2794 #define GCC_NORETURN /* nothing */
2795 #endif
2796 #ifndef GCC_UNUSED
2797 #define GCC_UNUSED /* nothing */
2798 #endif
2799 EOF
2800 if test "$GCC" = yes
2801 then
2802         AC_CHECKING([for $CC __attribute__ directives])
2803 cat > "conftest.$ac_ext" <<EOF
2804 #line __oline__ "${as_me:-configure}"
2805 #include "confdefs.h"
2806 #include "conftest.h"
2807 #include "conftest.i"
2808 #if     GCC_PRINTF
2809 #define GCC_PRINTFLIKE(fmt,var) __attribute__((format(printf,fmt,var)))
2810 #else
2811 #define GCC_PRINTFLIKE(fmt,var) /*nothing*/
2812 #endif
2813 #if     GCC_SCANF
2814 #define GCC_SCANFLIKE(fmt,var)  __attribute__((format(scanf,fmt,var)))
2815 #else
2816 #define GCC_SCANFLIKE(fmt,var)  /*nothing*/
2817 #endif
2818 extern void wow(char *,...) GCC_SCANFLIKE(1,2);
2819 extern GCC_NORETURN void oops(char *,...) GCC_PRINTFLIKE(1,2);
2820 extern GCC_NORETURN void foo(void);
2821 int main(int argc GCC_UNUSED, char *argv[[]] GCC_UNUSED) { (void)argc; (void)argv; return 0; }
2822 EOF
2823         cf_printf_attribute=no
2824         cf_scanf_attribute=no
2825         for cf_attribute in scanf printf unused noreturn
2826         do
2827                 CF_UPPER(cf_ATTRIBUTE,$cf_attribute)
2828                 cf_directive="__attribute__(($cf_attribute))"
2829                 echo "checking for $CC $cf_directive" 1>&AC_FD_CC
2830
2831                 case "$cf_attribute" in
2832                 (printf)
2833                         cf_printf_attribute=yes
2834                         cat >conftest.h <<EOF
2835 #define GCC_$cf_ATTRIBUTE 1
2836 EOF
2837                         ;;
2838                 (scanf)
2839                         cf_scanf_attribute=yes
2840                         cat >conftest.h <<EOF
2841 #define GCC_$cf_ATTRIBUTE 1
2842 EOF
2843                         ;;
2844                 (*)
2845                         cat >conftest.h <<EOF
2846 #define GCC_$cf_ATTRIBUTE $cf_directive
2847 EOF
2848                         ;;
2849                 esac
2850
2851                 if AC_TRY_EVAL(ac_compile); then
2852                         test -n "$verbose" && AC_MSG_RESULT(... $cf_attribute)
2853                         cat conftest.h >>confdefs.h
2854                         case "$cf_attribute" in
2855                         (noreturn)
2856                                 AC_DEFINE_UNQUOTED(GCC_NORETURN,$cf_directive,[Define to noreturn-attribute for gcc])
2857                                 ;;
2858                         (printf)
2859                                 cf_value='/* nothing */'
2860                                 if test "$cf_printf_attribute" != no ; then
2861                                         cf_value='__attribute__((format(printf,fmt,var)))'
2862                                         AC_DEFINE(GCC_PRINTF,1,[Define to 1 if the compiler supports gcc-like printf attribute.])
2863                                 fi
2864                                 AC_DEFINE_UNQUOTED(GCC_PRINTFLIKE(fmt,var),$cf_value,[Define to printf-attribute for gcc])
2865                                 ;;
2866                         (scanf)
2867                                 cf_value='/* nothing */'
2868                                 if test "$cf_scanf_attribute" != no ; then
2869                                         cf_value='__attribute__((format(scanf,fmt,var)))'
2870                                         AC_DEFINE(GCC_SCANF,1,[Define to 1 if the compiler supports gcc-like scanf attribute.])
2871                                 fi
2872                                 AC_DEFINE_UNQUOTED(GCC_SCANFLIKE(fmt,var),$cf_value,[Define to sscanf-attribute for gcc])
2873                                 ;;
2874                         (unused)
2875                                 AC_DEFINE_UNQUOTED(GCC_UNUSED,$cf_directive,[Define to unused-attribute for gcc])
2876                                 ;;
2877                         esac
2878                 fi
2879         done
2880 else
2881         ${FGREP-fgrep} define conftest.i >>confdefs.h
2882 fi
2883 rm -rf ./conftest*
2884 fi
2885 ])dnl
2886 dnl ---------------------------------------------------------------------------
2887 dnl CF_GCC_VERSION version: 8 updated: 2019/09/07 13:38:36
2888 dnl --------------
2889 dnl Find version of gcc, and (because icc/clang pretend to be gcc without being
2890 dnl compatible), attempt to determine if icc/clang is actually used.
2891 AC_DEFUN([CF_GCC_VERSION],[
2892 AC_REQUIRE([AC_PROG_CC])
2893 GCC_VERSION=none
2894 if test "$GCC" = yes ; then
2895         AC_MSG_CHECKING(version of $CC)
2896         GCC_VERSION="`${CC} --version 2>/dev/null | sed -e '2,$d' -e 's/^.*(GCC[[^)]]*) //' -e 's/^.*(Debian[[^)]]*) //' -e 's/^[[^0-9.]]*//' -e 's/[[^0-9.]].*//'`"
2897         test -z "$GCC_VERSION" && GCC_VERSION=unknown
2898         AC_MSG_RESULT($GCC_VERSION)
2899 fi
2900 CF_INTEL_COMPILER(GCC,INTEL_COMPILER,CFLAGS)
2901 CF_CLANG_COMPILER(GCC,CLANG_COMPILER,CFLAGS)
2902 ])dnl
2903 dnl ---------------------------------------------------------------------------
2904 dnl CF_GCC_WARNINGS version: 41 updated: 2021/01/01 16:53:59
2905 dnl ---------------
2906 dnl Check if the compiler supports useful warning options.  There's a few that
2907 dnl we don't use, simply because they're too noisy:
2908 dnl
2909 dnl     -Wconversion (useful in older versions of gcc, but not in gcc 2.7.x)
2910 dnl     -Winline (usually not worthwhile)
2911 dnl     -Wredundant-decls (system headers make this too noisy)
2912 dnl     -Wtraditional (combines too many unrelated messages, only a few useful)
2913 dnl     -Wwrite-strings (too noisy, but should review occasionally).  This
2914 dnl             is enabled for ncurses using "--enable-const".
2915 dnl     -pedantic
2916 dnl
2917 dnl Parameter:
2918 dnl     $1 is an optional list of gcc warning flags that a particular
2919 dnl             application might want to use, e.g., "no-unused" for
2920 dnl             -Wno-unused
2921 dnl Special:
2922 dnl     If $with_ext_const is "yes", add a check for -Wwrite-strings
2923 dnl
2924 AC_DEFUN([CF_GCC_WARNINGS],
2925 [
2926 AC_REQUIRE([CF_GCC_VERSION])
2927 if test "x$have_x" = xyes; then CF_CONST_X_STRING fi
2928 cat > "conftest.$ac_ext" <<EOF
2929 #line __oline__ "${as_me:-configure}"
2930 int main(int argc, char *argv[[]]) { return (argv[[argc-1]] == 0) ; }
2931 EOF
2932 if test "$INTEL_COMPILER" = yes
2933 then
2934 # The "-wdXXX" options suppress warnings:
2935 # remark #1419: external declaration in primary source file
2936 # remark #1683: explicit conversion of a 64-bit integral type to a smaller integral type (potential portability problem)
2937 # remark #1684: conversion from pointer to same-sized integral type (potential portability problem)
2938 # remark #193: zero used for undefined preprocessing identifier
2939 # remark #593: variable "curs_sb_left_arrow" was set but never used
2940 # remark #810: conversion from "int" to "Dimension={unsigned short}" may lose significant bits
2941 # remark #869: parameter "tw" was never referenced
2942 # remark #981: operands are evaluated in unspecified order
2943 # warning #279: controlling expression is constant
2944
2945         AC_CHECKING([for $CC warning options])
2946         cf_save_CFLAGS="$CFLAGS"
2947         EXTRA_CFLAGS="$EXTRA_CFLAGS -Wall"
2948         for cf_opt in \
2949                 wd1419 \
2950                 wd1683 \
2951                 wd1684 \
2952                 wd193 \
2953                 wd593 \
2954                 wd279 \
2955                 wd810 \
2956                 wd869 \
2957                 wd981
2958         do
2959                 CFLAGS="$cf_save_CFLAGS $EXTRA_CFLAGS -$cf_opt"
2960                 if AC_TRY_EVAL(ac_compile); then
2961                         test -n "$verbose" && AC_MSG_RESULT(... -$cf_opt)
2962                         EXTRA_CFLAGS="$EXTRA_CFLAGS -$cf_opt"
2963                 fi
2964         done
2965         CFLAGS="$cf_save_CFLAGS"
2966 elif test "$GCC" = yes && test "$GCC_VERSION" != "unknown"
2967 then
2968         AC_CHECKING([for $CC warning options])
2969         cf_save_CFLAGS="$CFLAGS"
2970         cf_warn_CONST=""
2971         test "$with_ext_const" = yes && cf_warn_CONST="Wwrite-strings"
2972         cf_gcc_warnings="Wignored-qualifiers Wlogical-op Wvarargs"
2973         test "x$CLANG_COMPILER" = xyes && cf_gcc_warnings=
2974         for cf_opt in W Wall \
2975                 Wbad-function-cast \
2976                 Wcast-align \
2977                 Wcast-qual \
2978                 Wdeclaration-after-statement \
2979                 Wextra \
2980                 Winline \
2981                 Wmissing-declarations \
2982                 Wmissing-prototypes \
2983                 Wnested-externs \
2984                 Wpointer-arith \
2985                 Wshadow \
2986                 Wstrict-prototypes \
2987                 Wundef Wno-inline $cf_gcc_warnings $cf_warn_CONST $1
2988         do
2989                 CFLAGS="$cf_save_CFLAGS $EXTRA_CFLAGS -$cf_opt"
2990                 if AC_TRY_EVAL(ac_compile); then
2991                         test -n "$verbose" && AC_MSG_RESULT(... -$cf_opt)
2992                         case "$cf_opt" in
2993                         (Winline)
2994                                 case "$GCC_VERSION" in
2995                                 ([[34]].*)
2996                                         CF_VERBOSE(feature is broken in gcc $GCC_VERSION)
2997                                         continue;;
2998                                 esac
2999                                 ;;
3000                         (Wpointer-arith)
3001                                 case "$GCC_VERSION" in
3002                                 ([[12]].*)
3003                                         CF_VERBOSE(feature is broken in gcc $GCC_VERSION)
3004                                         continue;;
3005                                 esac
3006                                 ;;
3007                         esac
3008                         EXTRA_CFLAGS="$EXTRA_CFLAGS -$cf_opt"
3009                 fi
3010         done
3011         CFLAGS="$cf_save_CFLAGS"
3012 fi
3013 rm -rf ./conftest*
3014
3015 AC_SUBST(EXTRA_CFLAGS)
3016 ])dnl
3017 dnl ---------------------------------------------------------------------------
3018 dnl CF_GETOPT_HEADER version: 8 updated: 2021/06/19 19:16:16
3019 dnl ----------------
3020 dnl Check for getopt's variables which are commonly defined in stdlib.h,
3021 dnl unistd.h or (nonstandard) in getopt.h
3022 AC_DEFUN([CF_GETOPT_HEADER],
3023 [
3024 AC_HAVE_HEADERS(unistd.h getopt.h)
3025 AC_CACHE_CHECK(for header declaring getopt variables,cf_cv_getopt_header,[
3026 cf_cv_getopt_header=none
3027 for cf_header in stdio.h stdlib.h unistd.h getopt.h
3028 do
3029 AC_TRY_COMPILE([
3030 #include <$cf_header>],
3031 [int x = optind; char *y = optarg; (void)x; (void)y],
3032 [cf_cv_getopt_header=$cf_header
3033  break])
3034 done
3035 ])
3036 if test "$cf_cv_getopt_header" != none ; then
3037         AC_DEFINE(HAVE_GETOPT_HEADER,1,[Define to 1 if getopt variables are declared in header])
3038 fi
3039 if test "$cf_cv_getopt_header" = getopt.h ; then
3040         AC_DEFINE(NEED_GETOPT_H,1,[Define to 1 if we must include getopt.h])
3041 fi
3042 ])dnl
3043 dnl ---------------------------------------------------------------------------
3044 dnl CF_GNATPREP_OPT_T version: 1 updated: 2014/08/02 18:37:25
3045 dnl -----------------
3046 AC_DEFUN([CF_GNATPREP_OPT_T],[
3047 AC_CACHE_CHECK(if GNATPREP supports -T option,cf_cv_gnatprep_opt_t,[
3048 cf_cv_gnatprep_opt_t=no
3049 gnatprep -T 2>/dev/null >/dev/null && cf_cv_gnatprep_opt_t=yes
3050 ])
3051 test "$cf_cv_gnatprep_opt_t" = yes && GNATPREP_OPTS="-T $GNATPREP_OPTS"
3052 AC_SUBST(GNATPREP_OPTS)
3053 ])dnl
3054 dnl ---------------------------------------------------------------------------
3055 dnl CF_GNAT_GENERICS version: 7 updated: 2021/01/01 13:31:04
3056 dnl ----------------
3057 AC_DEFUN([CF_GNAT_GENERICS],
3058 [
3059 AC_REQUIRE([CF_GNAT_VERSION])
3060
3061 AC_MSG_CHECKING(if GNAT supports generics)
3062 case "$cf_cv_gnat_version" in
3063 (3.1[[1-9]]*|3.[[2-9]]*|[[4-9]].*|[[1-9]][[0-9]].[[0-9]]*|20[[0-9]][[0-9]])
3064         cf_gnat_generics=yes
3065         ;;
3066 (*)
3067         cf_gnat_generics=no
3068         ;;
3069 esac
3070 AC_MSG_RESULT($cf_gnat_generics)
3071
3072 if test "$cf_gnat_generics" = yes
3073 then
3074         cf_compile_generics=generics
3075         cf_generic_objects="\${GENOBJS}"
3076 else
3077         cf_compile_generics=
3078         cf_generic_objects=
3079 fi
3080
3081 AC_SUBST(cf_compile_generics)
3082 AC_SUBST(cf_generic_objects)
3083 ])dnl
3084 dnl ---------------------------------------------------------------------------
3085 dnl CF_GNAT_PROJECTS version: 13 updated: 2021/01/02 17:09:14
3086 dnl ----------------
3087 dnl GNAT projects are configured with ".gpr" project files.
3088 dnl GNAT libraries are a further development, using the project feature.
3089 AC_DEFUN([CF_GNAT_PROJECTS],
3090 [
3091 AC_REQUIRE([CF_GNAT_VERSION])
3092 AC_REQUIRE([CF_DISABLE_GNAT_PROJECTS])
3093
3094 cf_gnat_libraries=no
3095 cf_gnat_projects=no
3096
3097 if test "$enable_gnat_projects" != no ; then
3098 AC_MSG_CHECKING(if GNAT supports project files)
3099 case "$cf_cv_gnat_version" in
3100 (3.[[0-9]]*)
3101         ;;
3102 (*)
3103         case "$cf_cv_system_name" in
3104         (cygwin*|msys*)
3105                 ;;
3106         (*)
3107                 rm -rf ./conftest* ./*~conftest*
3108                 if mkdir conftest.src conftest.bin conftest.lib
3109                 then
3110                         cd conftest.src
3111                         rm -rf ./conftest* ./*~conftest*
3112                         cat >>library.gpr <<CF_EOF
3113 project Library is
3114   Kind := External ("LIB_KIND");
3115   for Library_Name use "ConfTest";
3116   for Object_Dir use ".";
3117   for Library_ALI_Dir use External("LIBRARY_DIR");
3118   for Library_Version use External ("SONAME");
3119   for Library_Kind use Kind;
3120   for Library_Dir use External("BUILD_DIR");
3121   Source_Dir := External ("SOURCE_DIR");
3122   for Source_Dirs use (Source_Dir);
3123 end Library;
3124 CF_EOF
3125                         cat >>confpackage.ads <<CF_EOF
3126 package ConfPackage is
3127    procedure conftest;
3128 end ConfPackage;
3129 CF_EOF
3130                         cat >>confpackage.adb <<CF_EOF
3131 with Text_IO;
3132 package body ConfPackage is
3133    procedure conftest is
3134    begin
3135       Text_IO.Put ("Hello World");
3136       Text_IO.New_Line;
3137    end conftest;
3138 end ConfPackage;
3139 CF_EOF
3140                         if ( "$cf_ada_make" $ADAFLAGS \
3141                                         -Plibrary.gpr \
3142                                         -XBUILD_DIR="`cd ../conftest.bin;pwd`" \
3143                                         -XLIBRARY_DIR="`cd ../conftest.lib;pwd`" \
3144                                         -XSOURCE_DIR="`pwd`" \
3145                                         -XSONAME=libConfTest.so.1 \
3146                                         -XLIB_KIND=static 1>&AC_FD_CC 2>&1 ) ; then
3147                                 cf_gnat_projects=yes
3148                         fi
3149                         cd ..
3150                 fi
3151                 if test -f conftest.lib/confpackage.ali
3152                 then
3153                         cf_gnat_libraries=yes
3154                 fi
3155                 rm -rf ./conftest* ./*~conftest*
3156                 ;;
3157         esac
3158         ;;
3159 esac
3160 AC_MSG_RESULT($cf_gnat_projects)
3161 fi # enable_gnat_projects
3162
3163 if test "$cf_gnat_projects" = yes
3164 then
3165         AC_MSG_CHECKING(if GNAT supports libraries)
3166         AC_MSG_RESULT($cf_gnat_libraries)
3167 fi
3168
3169 USE_OLD_MAKERULES=""
3170 USE_GNAT_PROJECTS="#"
3171 USE_GNAT_MAKE_GPR="#"
3172 USE_GNAT_GPRBUILD="#"
3173
3174 if test "$cf_gnat_projects" = yes
3175 then
3176         USE_OLD_MAKERULES="#"
3177         USE_GNAT_PROJECTS=""
3178         if test "$cf_cv_VERSION_GPRBUILD" != no
3179         then
3180                 USE_GNAT_GPRBUILD=""
3181         elif test "$cf_cv_VERSION_GNATMAKE" != no
3182         then
3183                 USE_GNAT_MAKE_GPR=""
3184         else
3185                 AC_MSG_WARN(use old makefile rules since tools are missing)
3186         fi
3187 fi
3188
3189 if test "$cf_gnat_libraries" = yes
3190 then
3191         USE_GNAT_LIBRARIES=""
3192 else
3193         USE_GNAT_LIBRARIES="#"
3194 fi
3195
3196 AC_SUBST(USE_OLD_MAKERULES)
3197 AC_SUBST(USE_GNAT_PROJECTS)
3198 AC_SUBST(USE_GNAT_LIBRARIES)
3199 AC_SUBST(USE_GNAT_MAKE_GPR)
3200 AC_SUBST(USE_GNAT_GPRBUILD)
3201 ])dnl
3202 dnl ---------------------------------------------------------------------------
3203 dnl CF_GNAT_SIGINT version: 2 updated: 2021/01/01 13:31:04
3204 dnl --------------
3205 dnl Check if gnat supports SIGINT, and presumably tasking.  For the latter, it
3206 dnl is noted that gnat may compile a tasking unit even for configurations which
3207 dnl fail at runtime.
3208 AC_DEFUN([CF_GNAT_SIGINT],[
3209 AC_CACHE_CHECK(if GNAT supports SIGINT,cf_cv_gnat_sigint,[
3210 CF_GNAT_TRY_LINK([with Ada.Interrupts.Names;
3211
3212 package ConfTest is
3213
3214    pragma Warnings (Off);  --  the next pragma exists since 3.11p
3215    pragma Unreserve_All_Interrupts;
3216    pragma Warnings (On);
3217
3218    protected Process is
3219       procedure Stop;
3220       function Continue return Boolean;
3221       pragma Attach_Handler (Stop, Ada.Interrupts.Names.SIGINT);
3222    private
3223       Done : Boolean := False;
3224    end Process;
3225
3226 end ConfTest;],
3227 [package body ConfTest is
3228    protected body Process is
3229       procedure Stop is
3230       begin
3231          Done := True;
3232       end Stop;
3233       function Continue return Boolean is
3234       begin
3235          return not Done;
3236       end Continue;
3237    end Process;
3238 end ConfTest;],
3239         [cf_cv_gnat_sigint=yes],
3240         [cf_cv_gnat_sigint=no])])
3241
3242 if test "$cf_cv_gnat_sigint" = yes ; then
3243         USE_GNAT_SIGINT=""
3244 else
3245         USE_GNAT_SIGINT="#"
3246 fi
3247 AC_SUBST(USE_GNAT_SIGINT)
3248 ])dnl
3249 dnl ---------------------------------------------------------------------------
3250 dnl CF_GNAT_TRY_LINK version: 4 updated: 2021/01/01 13:31:04
3251 dnl ----------------
3252 dnl Verify that a test program compiles/links with GNAT.
3253 dnl $cf_ada_make is set to the program that compiles/links
3254 dnl $ADAFLAGS may be set to the GNAT flags.
3255 dnl
3256 dnl $1 is the text of the spec
3257 dnl $2 is the text of the body
3258 dnl $3 is the shell command to execute if successful
3259 dnl $4 is the shell command to execute if not successful
3260 AC_DEFUN([CF_GNAT_TRY_LINK],
3261 [
3262 rm -rf ./conftest* ./*~conftest*
3263 cat >>conftest.ads <<CF_EOF
3264 $1
3265 CF_EOF
3266 cat >>conftest.adb <<CF_EOF
3267 $2
3268 CF_EOF
3269 if ( "$cf_ada_make" $ADAFLAGS conftest 1>&AC_FD_CC 2>&1 ) ; then
3270 ifelse($3,,      :,[      $3])
3271 ifelse($4,,,[else
3272    $4])
3273 fi
3274 rm -rf ./conftest* ./*~conftest*
3275 ])dnl
3276 dnl ---------------------------------------------------------------------------
3277 dnl CF_GNAT_TRY_RUN version: 6 updated: 2021/01/01 13:31:04
3278 dnl ---------------
3279 dnl Verify that a test program compiles and runs with GNAT
3280 dnl $cf_ada_make is set to the program that compiles/links
3281 dnl $ADAFLAGS may be set to the GNAT flags.
3282 dnl
3283 dnl $1 is the text of the spec
3284 dnl $2 is the text of the body
3285 dnl $3 is the shell command to execute if successful
3286 dnl $4 is the shell command to execute if not successful
3287 AC_DEFUN([CF_GNAT_TRY_RUN],
3288 [
3289 rm -rf ./conftest* ./*~conftest*
3290 cat >>conftest.ads <<CF_EOF
3291 $1
3292 CF_EOF
3293 cat >>conftest.adb <<CF_EOF
3294 $2
3295 CF_EOF
3296 if ( "$cf_ada_make" $ADAFLAGS conftest 1>&AC_FD_CC 2>&1 ) ; then
3297    if ( ./conftest 1>&AC_FD_CC 2>&1 ) ; then
3298 ifelse($3,,      :,[      $3])
3299 ifelse($4,,,[   else
3300       $4])
3301    fi
3302 ifelse($4,,,[else
3303    $4])
3304 fi
3305 rm -rf ./conftest* ./*~conftest*
3306 ])dnl
3307 dnl ---------------------------------------------------------------------------
3308 dnl CF_GNAT_VERSION version: 22 updated: 2019/12/31 08:53:54
3309 dnl ---------------
3310 dnl $1 = cache variable to update
3311 dnl $2 = program name
3312 dnl Verify version of GNAT or related tool
3313 AC_DEFUN([CF_GNAT_VERSION],
3314 [
3315 AC_CACHE_CHECK(for ifelse($2,,gnat,$2) version, cf_cv_gnat_version,[
3316 cf_cv_gnat_version=`ifelse($2,,${cf_ada_make:-gnatmake},$2) --version 2>&1 | \
3317         grep '[[0-9]].[[0-9]][[0-9]]*' |\
3318         sed -e '2,$d' -e 's/[[^0-9 \.]]//g' -e 's/^[[ ]]*//' -e 's/ .*//'`
3319 ])
3320 test -z "$cf_cv_gnat_version" && cf_cv_gnat_version=no
3321 ifelse($1,,,[eval $1=$cf_cv_gnat_version; unset cf_cv_gnat_version])
3322 ])dnl
3323 dnl ---------------------------------------------------------------------------
3324 dnl CF_GNU_SOURCE version: 10 updated: 2018/12/10 20:09:41
3325 dnl -------------
3326 dnl Check if we must define _GNU_SOURCE to get a reasonable value for
3327 dnl _XOPEN_SOURCE, upon which many POSIX definitions depend.  This is a defect
3328 dnl (or misfeature) of glibc2, which breaks portability of many applications,
3329 dnl since it is interwoven with GNU extensions.
3330 dnl
3331 dnl Well, yes we could work around it...
3332 dnl
3333 dnl Parameters:
3334 dnl     $1 is the nominal value for _XOPEN_SOURCE
3335 AC_DEFUN([CF_GNU_SOURCE],
3336 [
3337 cf_gnu_xopen_source=ifelse($1,,500,$1)
3338
3339 AC_CACHE_CHECK(if this is the GNU C library,cf_cv_gnu_library,[
3340 AC_TRY_COMPILE([#include <sys/types.h>],[
3341         #if __GLIBC__ > 0 && __GLIBC_MINOR__ >= 0
3342                 return 0;
3343         #elif __NEWLIB__ > 0 && __NEWLIB_MINOR__ >= 0
3344                 return 0;
3345         #else
3346         #       error not GNU C library
3347         #endif],
3348         [cf_cv_gnu_library=yes],
3349         [cf_cv_gnu_library=no])
3350 ])
3351
3352 if test x$cf_cv_gnu_library = xyes; then
3353
3354         # With glibc 2.19 (13 years after this check was begun), _DEFAULT_SOURCE
3355         # was changed to help a little.  newlib incorporated the change about 4
3356         # years later.
3357         AC_CACHE_CHECK(if _DEFAULT_SOURCE can be used as a basis,cf_cv_gnu_library_219,[
3358                 cf_save="$CPPFLAGS"
3359                 CF_APPEND_TEXT(CPPFLAGS,-D_DEFAULT_SOURCE)
3360                 AC_TRY_COMPILE([#include <sys/types.h>],[
3361                         #if (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 19) || (__GLIBC__ > 2)
3362                                 return 0;
3363                         #elif (__NEWLIB__ == 2 && __NEWLIB_MINOR__ >= 4) || (__GLIBC__ > 3)
3364                                 return 0;
3365                         #else
3366                         #       error GNU C library __GLIBC__.__GLIBC_MINOR__ is too old
3367                         #endif],
3368                         [cf_cv_gnu_library_219=yes],
3369                         [cf_cv_gnu_library_219=no])
3370                 CPPFLAGS="$cf_save"
3371         ])
3372
3373         if test "x$cf_cv_gnu_library_219" = xyes; then
3374                 cf_save="$CPPFLAGS"
3375                 AC_CACHE_CHECK(if _XOPEN_SOURCE=$cf_gnu_xopen_source works with _DEFAULT_SOURCE,cf_cv_gnu_dftsrc_219,[
3376                         CF_ADD_CFLAGS(-D_DEFAULT_SOURCE -D_XOPEN_SOURCE=$cf_gnu_xopen_source)
3377                         AC_TRY_COMPILE([
3378                                 #include <limits.h>
3379                                 #include <sys/types.h>
3380                                 ],[
3381                                 #if (_XOPEN_SOURCE >= $cf_gnu_xopen_source) && (MB_LEN_MAX > 1)
3382                                         return 0;
3383                                 #else
3384                                 #       error GNU C library is too old
3385                                 #endif],
3386                                 [cf_cv_gnu_dftsrc_219=yes],
3387                                 [cf_cv_gnu_dftsrc_219=no])
3388                         ])
3389                 test "x$cf_cv_gnu_dftsrc_219" = "xyes" || CPPFLAGS="$cf_save"
3390         else
3391                 cf_cv_gnu_dftsrc_219=maybe
3392         fi
3393
3394         if test "x$cf_cv_gnu_dftsrc_219" != xyes; then
3395
3396                 AC_CACHE_CHECK(if we must define _GNU_SOURCE,cf_cv_gnu_source,[
3397                 AC_TRY_COMPILE([#include <sys/types.h>],[
3398                         #ifndef _XOPEN_SOURCE
3399                         #error  expected _XOPEN_SOURCE to be defined
3400                         #endif],
3401                         [cf_cv_gnu_source=no],
3402                         [cf_save="$CPPFLAGS"
3403                          CF_ADD_CFLAGS(-D_GNU_SOURCE)
3404                          AC_TRY_COMPILE([#include <sys/types.h>],[
3405                                 #ifdef _XOPEN_SOURCE
3406                                 #error  expected _XOPEN_SOURCE to be undefined
3407                                 #endif],
3408                                 [cf_cv_gnu_source=no],
3409                                 [cf_cv_gnu_source=yes])
3410                         CPPFLAGS="$cf_save"
3411                         ])
3412                 ])
3413
3414                 if test "$cf_cv_gnu_source" = yes
3415                 then
3416                 AC_CACHE_CHECK(if we should also define _DEFAULT_SOURCE,cf_cv_default_source,[
3417                         CF_APPEND_TEXT(CPPFLAGS,-D_GNU_SOURCE)
3418                         AC_TRY_COMPILE([#include <sys/types.h>],[
3419                                 #ifdef _DEFAULT_SOURCE
3420                                 #error  expected _DEFAULT_SOURCE to be undefined
3421                                 #endif],
3422                                 [cf_cv_default_source=no],
3423                                 [cf_cv_default_source=yes])
3424                         ])
3425                         if test "$cf_cv_default_source" = yes
3426                         then
3427                                 CF_APPEND_TEXT(CPPFLAGS,-D_DEFAULT_SOURCE)
3428                         fi
3429                 fi
3430         fi
3431
3432 fi
3433 ])dnl
3434 dnl ---------------------------------------------------------------------------
3435 dnl CF_GPP_LIBRARY version: 13 updated: 2021/01/01 13:31:04
3436 dnl --------------
3437 dnl If we're trying to use g++, test if libg++ is installed (a rather common
3438 dnl problem :-).  If we have the compiler but no library, we'll be able to
3439 dnl configure, but won't be able to build the c++ demo program.
3440 AC_DEFUN([CF_GPP_LIBRARY],
3441 [
3442 cf_cxx_library=unknown
3443 case "$cf_cv_system_name" in
3444 (os2*)
3445         cf_gpp_libname=gpp
3446         ;;
3447 (*)
3448         cf_gpp_libname=g++
3449         ;;
3450 esac
3451 if test "$GXX" = yes; then
3452         AC_MSG_CHECKING([for lib$cf_gpp_libname])
3453         cf_save="$LIBS"
3454         CF_ADD_LIB($cf_gpp_libname)
3455         AC_TRY_LINK([
3456 #include <$cf_gpp_libname/builtin.h>
3457         ],
3458         [two_arg_error_handler_t foo2 = lib_error_handler],
3459         [cf_cxx_library=yes
3460          CF_ADD_LIB($cf_gpp_libname,CXXLIBS)
3461          if test "$cf_gpp_libname" = cpp ; then
3462             AC_DEFINE(HAVE_GPP_BUILTIN_H,1,[Define to 1 if we have gpp builtin.h])
3463          else
3464             AC_DEFINE(HAVE_GXX_BUILTIN_H,1,[Define to 1 if we have g++ builtin.h])
3465          fi],
3466         [AC_TRY_LINK([
3467 #include <builtin.h>
3468         ],
3469         [two_arg_error_handler_t foo2 = lib_error_handler],
3470         [cf_cxx_library=yes
3471          CF_ADD_LIB($cf_gpp_libname,CXXLIBS)
3472          AC_DEFINE(HAVE_BUILTIN_H,1,[Define to 1 if we have builtin.h])],
3473         [cf_cxx_library=no])])
3474         LIBS="$cf_save"
3475         AC_MSG_RESULT($cf_cxx_library)
3476 fi
3477 ])dnl
3478 dnl ---------------------------------------------------------------------------
3479 dnl CF_GXX_VERSION version: 8 updated: 2017/02/11 14:48:57
3480 dnl --------------
3481 dnl Check for version of g++
3482 AC_DEFUN([CF_GXX_VERSION],[
3483 AC_REQUIRE([AC_PROG_CPP])
3484 GXX_VERSION=none
3485 if test "$GXX" = yes; then
3486         AC_MSG_CHECKING(version of ${CXX:-g++})
3487         GXX_VERSION="`${CXX:-g++} --version| sed -e '2,$d' -e 's/^.*(GCC) //' -e 's/^[[^0-9.]]*//' -e 's/[[^0-9.]].*//'`"
3488         if test -z "$GXX_VERSION"
3489         then
3490                 GXX_VERSION=unknown
3491                 GXX=no
3492         fi
3493         AC_MSG_RESULT($GXX_VERSION)
3494 fi
3495 ])dnl
3496 dnl ---------------------------------------------------------------------------
3497 dnl CF_GXX_WARNINGS version: 11 updated: 2021/01/08 16:50:55
3498 dnl ---------------
3499 dnl Check if the compiler supports useful warning options.
3500 dnl
3501 dnl Most of gcc's options apply to g++, except:
3502 dnl     -Wbad-function-cast
3503 dnl     -Wmissing-declarations
3504 dnl     -Wnested-externs
3505 dnl
3506 dnl Omit a few (for now):
3507 dnl     -Winline
3508 dnl
3509 dnl Parameter:
3510 dnl     $1 is an optional list of g++ warning flags that a particular
3511 dnl             application might want to use, e.g., "no-unused" for
3512 dnl             -Wno-unused
3513 dnl Special:
3514 dnl     If $with_ext_const is "yes", add a check for -Wwrite-strings
3515 dnl
3516 AC_DEFUN([CF_GXX_WARNINGS],
3517 [
3518
3519 CF_INTEL_COMPILER(GXX,INTEL_CPLUSPLUS,CXXFLAGS)
3520 CF_CLANG_COMPILER(GXX,CLANG_CPLUSPLUS,CXXFLAGS)
3521
3522 AC_REQUIRE([CF_GXX_VERSION])
3523
3524 AC_LANG_SAVE
3525 AC_LANG_CPLUSPLUS
3526
3527 cat > conftest.$ac_ext <<EOF
3528 #line __oline__ "configure"
3529 int main(int argc, char *argv[[]]) { return (argv[[argc-1]] == 0) ; }
3530 EOF
3531
3532 if test "$INTEL_CPLUSPLUS" = yes
3533 then
3534 # The "-wdXXX" options suppress warnings:
3535 # remark #1419: external declaration in primary source file
3536 # remark #1682: implicit conversion of a 64-bit integral type to a smaller integral type (potential portability problem)
3537 # remark #1683: explicit conversion of a 64-bit integral type to a smaller integral type (potential portability problem)
3538 # remark #1684: conversion from pointer to same-sized integral type (potential portability problem)
3539 # remark #193: zero used for undefined preprocessing identifier
3540 # remark #593: variable "curs_sb_left_arrow" was set but never used
3541 # remark #810: conversion from "int" to "Dimension={unsigned short}" may lose significant bits
3542 # remark #869: parameter "tw" was never referenced
3543 # remark #981: operands are evaluated in unspecified order
3544 # warning #269: invalid format string conversion
3545
3546         AC_CHECKING([for $CC warning options])
3547         cf_save_CXXFLAGS="$CXXFLAGS"
3548         EXTRA_CXXFLAGS="-Wall"
3549         for cf_opt in \
3550                 wd1419 \
3551                 wd1682 \
3552                 wd1683 \
3553                 wd1684 \
3554                 wd193 \
3555                 wd279 \
3556                 wd593 \
3557                 wd810 \
3558                 wd869 \
3559                 wd981
3560         do
3561                 CXXFLAGS="$cf_save_CXXFLAGS $EXTRA_CXXFLAGS -$cf_opt"
3562                 if AC_TRY_EVAL(ac_compile); then
3563                         test -n "$verbose" && AC_MSG_RESULT(... -$cf_opt)
3564                         EXTRA_CXXFLAGS="$EXTRA_CXXFLAGS -$cf_opt"
3565                 fi
3566         done
3567         CXXFLAGS="$cf_save_CXXFLAGS"
3568
3569 elif test "$GXX" = yes
3570 then
3571         AC_CHECKING([for $CXX warning options])
3572         cf_save_CXXFLAGS="$CXXFLAGS"
3573         EXTRA_CXXFLAGS="-W -Wall"
3574         cf_gxx_extra_warnings=""
3575         test "$with_ext_const" = yes && cf_gxx_extra_warnings="Wwrite-strings"
3576         case "$GXX_VERSION" in
3577         ([[1-2]].*)
3578                 ;;
3579         (*)
3580                 cf_gxx_extra_warnings="$cf_gxx_extra_warnings Weffc++"
3581                 ;;
3582         esac
3583         for cf_opt in \
3584                 Wabi \
3585                 fabi-version=0 \
3586                 Wextra \
3587                 Wignored-qualifiers \
3588                 Wlogical-op \
3589                 Woverloaded-virtual \
3590                 Wsign-promo \
3591                 Wsynth \
3592                 Wold-style-cast \
3593                 Wcast-align \
3594                 Wcast-qual \
3595                 Wpointer-arith \
3596                 Wshadow \
3597                 Wundef $cf_gxx_extra_warnings $1
3598         do
3599                 CXXFLAGS="$cf_save_CXXFLAGS $EXTRA_CXXFLAGS -Werror -$cf_opt"
3600                 if AC_TRY_EVAL(ac_compile); then
3601                         test -n "$verbose" && AC_MSG_RESULT(... -$cf_opt)
3602                         EXTRA_CXXFLAGS="$EXTRA_CXXFLAGS -$cf_opt"
3603                 else
3604                         test -n "$verbose" && AC_MSG_RESULT(... no -$cf_opt)
3605                 fi
3606         done
3607         CXXFLAGS="$cf_save_CXXFLAGS"
3608 fi
3609
3610 rm -rf ./conftest*
3611 AC_LANG_RESTORE
3612 AC_SUBST(EXTRA_CXXFLAGS)
3613 ])dnl
3614 dnl ---------------------------------------------------------------------------
3615 dnl CF_HASHED_DB version: 7 updated: 2015/04/18 08:56:57
3616 dnl ------------
3617 dnl Look for an instance of the Berkeley hashed database.
3618 dnl
3619 dnl $1 = optional parameter, to specify install-prefix for the database.
3620 AC_DEFUN([CF_HASHED_DB],
3621 [
3622 ifelse([$1],,,[
3623 case $1 in
3624 (yes|*able*)
3625         ;;
3626 (*)
3627         if test -d "$1" ; then
3628                 CF_ADD_INCDIR($1/include)
3629                 CF_ADD_LIBDIR($1/lib)
3630         else
3631                 case "$1" in
3632                 (./*|../*|/*)
3633                         AC_MSG_WARN(no such directory $1)
3634                         ;;
3635                 (*)
3636                         CF_FIND_SUB_INCDIR($1)
3637                         CF_FIND_SUB_LIBDIR($1)
3638                         ;;
3639                 esac
3640         fi
3641 esac
3642 ])
3643 AC_CHECK_HEADER(db.h,[
3644 CF_HASHED_DB_VERSION
3645 if test "$cf_cv_hashed_db_version" = unknown ; then
3646         AC_MSG_ERROR(Cannot determine version of db)
3647 else
3648         CF_HASHED_DB_LIBS
3649         if test "$cf_cv_hashed_db_libs" = unknown ; then
3650                 AC_MSG_ERROR(Cannot determine library for db)
3651         elif test "$cf_cv_hashed_db_libs" != default ; then
3652                 CF_ADD_LIB($cf_cv_hashed_db_libs)
3653         fi
3654 fi
3655 ],[
3656         AC_MSG_ERROR(Cannot find db.h)
3657 ])
3658 ])dnl
3659 dnl ---------------------------------------------------------------------------
3660 dnl CF_HASHED_DB_LIBS version: 10 updated: 2021/01/02 17:09:14
3661 dnl -----------------
3662 dnl Given that we have the header and version for hashed database, find the
3663 dnl library information.
3664 AC_DEFUN([CF_HASHED_DB_LIBS],
3665 [
3666 AC_CACHE_CHECK(for db libraries, cf_cv_hashed_db_libs,[
3667 cf_cv_hashed_db_libs=unknown
3668 for cf_db_libs in "" db$cf_cv_hashed_db_version db-$cf_cv_hashed_db_version db ''
3669 do
3670         cf_save_libs="$LIBS"
3671         if test -n "$cf_db_libs"; then
3672                 CF_ADD_LIB($cf_db_libs)
3673         fi
3674         CF_MSG_LOG(checking for library $cf_db_libs)
3675         AC_TRY_LINK([
3676 $ac_includes_default
3677 #include <db.h>
3678 ],[
3679         char *path = "/tmp/foo";
3680 #ifdef DB_VERSION_MAJOR
3681 #if DB_VERSION_MAJOR >= 4
3682         DB *result = 0;
3683         db_create(&result, NULL, 0);
3684         result->open(result,
3685                 NULL,
3686                 path,
3687                 path,
3688                 DB_HASH,
3689                 DB_CREATE,
3690                 0644);
3691 #elif DB_VERSION_MAJOR >= 3
3692         DB *result = 0;
3693         db_create(&result, NULL, 0);
3694         result->open(result,
3695                 path,
3696                 path,
3697                 DB_HASH,
3698                 DB_CREATE,
3699                 0644);
3700 #elif DB_VERSION_MAJOR >= 2
3701         DB *result = 0;
3702         db_open(path,
3703                 DB_HASH,
3704                 DB_CREATE,
3705                 0644,
3706                 (DB_ENV *) 0,
3707                 (DB_INFO *) 0,
3708                 &result);
3709 #endif /* DB_VERSION_MAJOR */
3710 #else
3711         DB *result = dbopen(path,
3712                      2,
3713                      0644,
3714                      DB_HASH,
3715                      0);
3716 #endif
3717         ${cf_cv_main_return:-return}(result != 0)
3718 ],[
3719         if test -n "$cf_db_libs" ; then
3720                 cf_cv_hashed_db_libs=$cf_db_libs
3721         else
3722                 cf_cv_hashed_db_libs=default
3723         fi
3724         LIBS="$cf_save_libs"
3725         break
3726 ])
3727         LIBS="$cf_save_libs"
3728 done
3729 ])
3730 ])dnl
3731 dnl ---------------------------------------------------------------------------
3732 dnl CF_HASHED_DB_VERSION version: 4 updated: 2014/04/12 16:47:01
3733 dnl --------------------
3734 dnl Given that we have the header file for hashed database, find the version
3735 dnl information.
3736 AC_DEFUN([CF_HASHED_DB_VERSION],
3737 [
3738 AC_CACHE_CHECK(for version of db, cf_cv_hashed_db_version,[
3739 cf_cv_hashed_db_version=unknown
3740
3741 for cf_db_version in 1 2 3 4 5 6
3742 do
3743         CF_MSG_LOG(checking for db version $cf_db_version)
3744         AC_TRY_COMPILE([
3745 $ac_includes_default
3746 #include <db.h>
3747
3748 #ifdef DB_VERSION_MAJOR
3749         /* db2 (DB_VERSION_MAJOR=2) has also DB_VERSION_MINOR, tested with 7 */
3750 #if $cf_db_version == DB_VERSION_MAJOR
3751         /* ok */
3752 #else
3753         make an error
3754 #endif