Ada95/aclocal.m4

   1 dnl***************************************************************************
   2 dnl Copyright 2018-2022,2023 Thomas E. Dickey                                *
   3 dnl Copyright 2010-2017,2018 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
  31 dnl
  32 dnl $Id: aclocal.m4,v 1.205 2023/10/28 16:05:04 tom Exp $
  33 dnl Macros used in NCURSES Ada95 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 CF_ACVERSION_CHECK version: 5 updated: 2014/06/04 19:11:49
  46 dnl ------------------
  47 dnl Conditionally generate script according to whether we're using a given autoconf.
  48 dnl
  49 dnl $1 = version to compare against
  50 dnl $2 = code to use if AC_ACVERSION is at least as high as $1.
  51 dnl $3 = code to use if AC_ACVERSION is older than $1.
  52 define([CF_ACVERSION_CHECK],
  53 [
  54 ifdef([AC_ACVERSION], ,[ifdef([AC_AUTOCONF_VERSION],[m4_copy([AC_AUTOCONF_VERSION],[AC_ACVERSION])],[m4_copy([m4_PACKAGE_VERSION],[AC_ACVERSION])])])dnl
  55 ifdef([m4_version_compare],
  56 [m4_if(m4_version_compare(m4_defn([AC_ACVERSION]), [$1]), -1, [$3], [$2])],
  57 [CF_ACVERSION_COMPARE(
  58 AC_PREREQ_CANON(AC_PREREQ_SPLIT([$1])),
  59 AC_PREREQ_CANON(AC_PREREQ_SPLIT(AC_ACVERSION)), AC_ACVERSION, [$2], [$3])])])dnl
  60 dnl ---------------------------------------------------------------------------
  61 dnl CF_ACVERSION_COMPARE version: 3 updated: 2012/10/03 18:39:53
  62 dnl --------------------
  63 dnl CF_ACVERSION_COMPARE(MAJOR1, MINOR1, TERNARY1,
  64 dnl                      MAJOR2, MINOR2, TERNARY2,
  65 dnl                      PRINTABLE2, not FOUND, FOUND)
  66 define([CF_ACVERSION_COMPARE],
  67 [ifelse(builtin([eval], [$2 < $5]), 1,
  68 [ifelse([$8], , ,[$8])],
  69 [ifelse([$9], , ,[$9])])])dnl
  70 dnl ---------------------------------------------------------------------------
  71 dnl CF_ADA_INCLUDE_DIRS version: 8 updated: 2013/10/14 04:24:07
  72 dnl -------------------
  73 dnl Construct the list of include-options for the C programs in the Ada95
  74 dnl binding.
  75 AC_DEFUN([CF_ADA_INCLUDE_DIRS],
  76 [
  77 ACPPFLAGS="-I. -I../include -I../../include $ACPPFLAGS"
  78 if test "$srcdir" != "."; then
  79         ACPPFLAGS="-I\${srcdir}/../../include $ACPPFLAGS"
  80 fi
  81 if test "$GCC" != yes; then
  82         ACPPFLAGS="$ACPPFLAGS -I\${includedir}"
  83 elif test "$includedir" != "/usr/include"; then
  84         if test "$includedir" = '${prefix}/include' ; then
  85                 if test x$prefix != x/usr ; then
  86                         ACPPFLAGS="$ACPPFLAGS -I\${includedir}"
  87                 fi
  88         else
  89                 ACPPFLAGS="$ACPPFLAGS -I\${includedir}"
  90         fi
  91 fi
  92 AC_SUBST(ACPPFLAGS)
  93 ])dnl
  94 dnl ---------------------------------------------------------------------------
  95 dnl CF_ADD_ADAFLAGS version: 1 updated: 2010/06/19 15:22:18
  96 dnl ---------------
  97 dnl Add to $ADAFLAGS, which is substituted into makefile and scripts.
  98 AC_DEFUN([CF_ADD_ADAFLAGS],[
  99         ADAFLAGS="$ADAFLAGS $1"
 100         AC_SUBST(ADAFLAGS)
 101 ])dnl
 102 dnl ---------------------------------------------------------------------------
 103 dnl CF_ADD_CFLAGS version: 15 updated: 2020/12/31 10:54:15
 104 dnl -------------
 105 dnl Copy non-preprocessor flags to $CFLAGS, preprocessor flags to $CPPFLAGS
 106 dnl $1 = flags to add
 107 dnl $2 = if given makes this macro verbose.
 108 dnl
 109 dnl Put any preprocessor definitions that use quoted strings in $EXTRA_CPPFLAGS,
 110 dnl to simplify use of $CPPFLAGS in compiler checks, etc., that are easily
 111 dnl confused by the quotes (which require backslashes to keep them usable).
 112 AC_DEFUN([CF_ADD_CFLAGS],
 113 [
 114 cf_fix_cppflags=no
 115 cf_new_cflags=
 116 cf_new_cppflags=
 117 cf_new_extra_cppflags=
 118
 119 for cf_add_cflags in $1
 120 do
 121 case "$cf_fix_cppflags" in
 122 (no)
 123         case "$cf_add_cflags" in
 124         (-undef|-nostdinc*|-I*|-D*|-U*|-E|-P|-C)
 125                 case "$cf_add_cflags" in
 126                 (-D*)
 127                         cf_tst_cflags=`echo "${cf_add_cflags}" |sed -e 's/^-D[[^=]]*='\''\"[[^"]]*//'`
 128
 129                         test "x${cf_add_cflags}" != "x${cf_tst_cflags}" \
 130                                 && test -z "${cf_tst_cflags}" \
 131                                 && cf_fix_cppflags=yes
 132
 133                         if test "$cf_fix_cppflags" = yes ; then
 134                                 CF_APPEND_TEXT(cf_new_extra_cppflags,$cf_add_cflags)
 135                                 continue
 136                         elif test "${cf_tst_cflags}" = "\"'" ; then
 137                                 CF_APPEND_TEXT(cf_new_extra_cppflags,$cf_add_cflags)
 138                                 continue
 139                         fi
 140                         ;;
 141                 esac
 142                 case "$CPPFLAGS" in
 143                 (*$cf_add_cflags)
 144                         ;;
 145                 (*)
 146                         case "$cf_add_cflags" in
 147                         (-D*)
 148                                 cf_tst_cppflags=`echo "x$cf_add_cflags" | sed -e 's/^...//' -e 's/=.*//'`
 149                                 CF_REMOVE_DEFINE(CPPFLAGS,$CPPFLAGS,$cf_tst_cppflags)
 150                                 ;;
 151                         esac
 152                         CF_APPEND_TEXT(cf_new_cppflags,$cf_add_cflags)
 153                         ;;
 154                 esac
 155                 ;;
 156         (*)
 157                 CF_APPEND_TEXT(cf_new_cflags,$cf_add_cflags)
 158                 ;;
 159         esac
 160         ;;
 161 (yes)
 162         CF_APPEND_TEXT(cf_new_extra_cppflags,$cf_add_cflags)
 163
 164         cf_tst_cflags=`echo "${cf_add_cflags}" |sed -e 's/^[[^"]]*"'\''//'`
 165
 166         test "x${cf_add_cflags}" != "x${cf_tst_cflags}" \
 167                 && test -z "${cf_tst_cflags}" \
 168                 && cf_fix_cppflags=no
 169         ;;
 170 esac
 171 done
 172
 173 if test -n "$cf_new_cflags" ; then
 174         ifelse([$2],,,[CF_VERBOSE(add to \$CFLAGS $cf_new_cflags)])
 175         CF_APPEND_TEXT(CFLAGS,$cf_new_cflags)
 176 fi
 177
 178 if test -n "$cf_new_cppflags" ; then
 179         ifelse([$2],,,[CF_VERBOSE(add to \$CPPFLAGS $cf_new_cppflags)])
 180         CF_APPEND_TEXT(CPPFLAGS,$cf_new_cppflags)
 181 fi
 182
 183 if test -n "$cf_new_extra_cppflags" ; then
 184         ifelse([$2],,,[CF_VERBOSE(add to \$EXTRA_CPPFLAGS $cf_new_extra_cppflags)])
 185         CF_APPEND_TEXT(EXTRA_CPPFLAGS,$cf_new_extra_cppflags)
 186 fi
 187
 188 AC_SUBST(EXTRA_CPPFLAGS)
 189
 190 ])dnl
 191 dnl ---------------------------------------------------------------------------
 192 dnl CF_ADD_INCDIR version: 17 updated: 2021/09/04 06:35:04
 193 dnl -------------
 194 dnl Add an include-directory to $CPPFLAGS.  Don't add /usr/include, since it is
 195 dnl redundant.  We don't normally need to add -I/usr/local/include for gcc,
 196 dnl but old versions (and some misinstalled ones) need that.  To make things
 197 dnl worse, gcc 3.x may give error messages if -I/usr/local/include is added to
 198 dnl the include-path).
 199 AC_DEFUN([CF_ADD_INCDIR],
 200 [
 201 if test -n "$1" ; then
 202   for cf_add_incdir in $1
 203   do
 204         while test "$cf_add_incdir" != /usr/include
 205         do
 206           if test -d "$cf_add_incdir"
 207           then
 208                 cf_have_incdir=no
 209                 if test -n "$CFLAGS$CPPFLAGS" ; then
 210                   # a loop is needed to ensure we can add subdirs of existing dirs
 211                   for cf_test_incdir in $CFLAGS $CPPFLAGS ; do
 212                         if test ".$cf_test_incdir" = ".-I$cf_add_incdir" ; then
 213                           cf_have_incdir=yes; break
 214                         fi
 215                   done
 216                 fi
 217
 218                 if test "$cf_have_incdir" = no ; then
 219                   if test "$cf_add_incdir" = /usr/local/include ; then
 220                         if test "$GCC" = yes
 221                         then
 222                           cf_save_CPPFLAGS=$CPPFLAGS
 223                           CF_APPEND_TEXT(CPPFLAGS,-I$cf_add_incdir)
 224                           AC_TRY_COMPILE([#include <stdio.h>],
 225                                   [printf("Hello")],
 226                                   [],
 227                                   [cf_have_incdir=yes])
 228                           CPPFLAGS=$cf_save_CPPFLAGS
 229                         fi
 230                   fi
 231                 fi
 232
 233                 if test "$cf_have_incdir" = no ; then
 234                   CF_VERBOSE(adding $cf_add_incdir to include-path)
 235                   ifelse([$2],,CPPFLAGS,[$2])="$ifelse([$2],,CPPFLAGS,[$2]) -I$cf_add_incdir"
 236
 237                   cf_top_incdir=`echo "$cf_add_incdir" | sed -e 's%/include/.*$%/include%'`
 238                   test "$cf_top_incdir" = "$cf_add_incdir" && break
 239                   cf_add_incdir="$cf_top_incdir"
 240                 else
 241                   break
 242                 fi
 243           else
 244                 break
 245           fi
 246         done
 247   done
 248 fi
 249 ])dnl
 250 dnl ---------------------------------------------------------------------------
 251 dnl CF_ADD_LIB version: 2 updated: 2010/06/02 05:03:05
 252 dnl ----------
 253 dnl Add a library, used to enforce consistency.
 254 dnl
 255 dnl $1 = library to add, without the "-l"
 256 dnl $2 = variable to update (default $LIBS)
 257 AC_DEFUN([CF_ADD_LIB],[CF_ADD_LIBS(-l$1,ifelse($2,,LIBS,[$2]))])dnl
 258 dnl ---------------------------------------------------------------------------
 259 dnl CF_ADD_LIBDIR version: 11 updated: 2020/12/31 20:19:42
 260 dnl -------------
 261 dnl     Adds to the library-path
 262 dnl
 263 dnl     Some machines have trouble with multiple -L options.
 264 dnl
 265 dnl $1 is the (list of) directory(s) to add
 266 dnl $2 is the optional name of the variable to update (default LDFLAGS)
 267 dnl
 268 AC_DEFUN([CF_ADD_LIBDIR],
 269 [
 270 if test -n "$1" ; then
 271         for cf_add_libdir in $1
 272         do
 273                 if test "$cf_add_libdir" = /usr/lib ; then
 274                         :
 275                 elif test -d "$cf_add_libdir"
 276                 then
 277                         cf_have_libdir=no
 278                         if test -n "$LDFLAGS$LIBS" ; then
 279                                 # a loop is needed to ensure we can add subdirs of existing dirs
 280                                 for cf_test_libdir in $LDFLAGS $LIBS ; do
 281                                         if test ".$cf_test_libdir" = ".-L$cf_add_libdir" ; then
 282                                                 cf_have_libdir=yes; break
 283                                         fi
 284                                 done
 285                         fi
 286                         if test "$cf_have_libdir" = no ; then
 287                                 CF_VERBOSE(adding $cf_add_libdir to library-path)
 288                                 ifelse([$2],,LDFLAGS,[$2])="-L$cf_add_libdir $ifelse([$2],,LDFLAGS,[$2])"
 289                         fi
 290                 fi
 291         done
 292 fi
 293 ])dnl
 294 dnl ---------------------------------------------------------------------------
 295 dnl CF_ADD_LIBS version: 3 updated: 2019/11/02 16:47:33
 296 dnl -----------
 297 dnl Add one or more libraries, used to enforce consistency.  Libraries are
 298 dnl prepended to an existing list, since their dependencies are assumed to
 299 dnl already exist in the list.
 300 dnl
 301 dnl $1 = libraries to add, with the "-l", etc.
 302 dnl $2 = variable to update (default $LIBS)
 303 AC_DEFUN([CF_ADD_LIBS],[
 304 cf_add_libs="[$]ifelse($2,,LIBS,[$2])"
 305 # reverse order
 306 cf_add_0lib=
 307 for cf_add_1lib in $1; do cf_add_0lib="$cf_add_1lib $cf_add_0lib"; done
 308 # filter duplicates
 309 for cf_add_1lib in $cf_add_0lib; do
 310         for cf_add_2lib in $cf_add_libs; do
 311                 if test "x$cf_add_1lib" = "x$cf_add_2lib"; then
 312                         cf_add_1lib=
 313                         break
 314                 fi
 315         done
 316         test -n "$cf_add_1lib" && cf_add_libs="$cf_add_1lib $cf_add_libs"
 317 done
 318 ifelse($2,,LIBS,[$2])="$cf_add_libs"
 319 ])dnl
 320 dnl ---------------------------------------------------------------------------
 321 dnl CF_ADD_SUBDIR_PATH version: 5 updated: 2020/12/31 20:19:42
 322 dnl ------------------
 323 dnl Append to a search-list for a nonstandard header/lib-file
 324 dnl     $1 = the variable to return as result
 325 dnl     $2 = the package name
 326 dnl     $3 = the subdirectory, e.g., bin, include or lib
 327 dnl $4 = the directory under which we will test for subdirectories
 328 dnl $5 = a directory that we do not want $4 to match
 329 AC_DEFUN([CF_ADD_SUBDIR_PATH],
 330 [
 331 test "x$4" != "x$5" && \
 332 test -d "$4" && \
 333 ifelse([$5],NONE,,[{ test -z "$5" || test "x$5" = xNONE || test "x$4" != "x$5"; } &&]) {
 334         test -n "$verbose" && echo "    ... testing for $3-directories under $4"
 335         test -d "$4/$3" &&          $1="[$]$1 $4/$3"
 336         test -d "$4/$3/$2" &&       $1="[$]$1 $4/$3/$2"
 337         test -d "$4/$3/$2/$3" &&    $1="[$]$1 $4/$3/$2/$3"
 338         test -d "$4/$2/$3" &&       $1="[$]$1 $4/$2/$3"
 339         test -d "$4/$2/$3/$2" &&    $1="[$]$1 $4/$2/$3/$2"
 340 }
 341 ])dnl
 342 dnl ---------------------------------------------------------------------------
 343 dnl CF_APPEND_CFLAGS version: 3 updated: 2021/09/05 17:25:40
 344 dnl ----------------
 345 dnl Use CF_ADD_CFLAGS after first checking for potential redefinitions.
 346 dnl $1 = flags to add
 347 dnl $2 = if given makes this macro verbose.
 348 define([CF_APPEND_CFLAGS],
 349 [
 350 for cf_add_cflags in $1
 351 do
 352         case "x$cf_add_cflags" in
 353         (x-[[DU]]*)
 354                 CF_REMOVE_CFLAGS($cf_add_cflags,CFLAGS,[$2])
 355                 CF_REMOVE_CFLAGS($cf_add_cflags,CPPFLAGS,[$2])
 356                 ;;
 357         esac
 358         CF_ADD_CFLAGS([$cf_add_cflags],[$2])
 359 done
 360 ])dnl
 361 dnl ---------------------------------------------------------------------------
 362 dnl CF_APPEND_TEXT version: 1 updated: 2017/02/25 18:58:55
 363 dnl --------------
 364 dnl use this macro for appending text without introducing an extra blank at
 365 dnl the beginning
 366 define([CF_APPEND_TEXT],
 367 [
 368         test -n "[$]$1" && $1="[$]$1 "
 369         $1="[$]{$1}$2"
 370 ])dnl
 371 dnl ---------------------------------------------------------------------------
 372 dnl CF_ARG_DISABLE version: 3 updated: 1999/03/30 17:24:31
 373 dnl --------------
 374 dnl Allow user to disable a normally-on option.
 375 AC_DEFUN([CF_ARG_DISABLE],
 376 [CF_ARG_OPTION($1,[$2],[$3],[$4],yes)])dnl
 377 dnl ---------------------------------------------------------------------------
 378 dnl CF_ARG_ENABLE version: 3 updated: 1999/03/30 17:24:31
 379 dnl -------------
 380 dnl Allow user to enable a normally-off option.
 381 AC_DEFUN([CF_ARG_ENABLE],
 382 [CF_ARG_OPTION($1,[$2],[$3],[$4],no)])dnl
 383 dnl ---------------------------------------------------------------------------
 384 dnl CF_ARG_OPTION version: 5 updated: 2015/05/10 19:52:14
 385 dnl -------------
 386 dnl Restricted form of AC_ARG_ENABLE that ensures user doesn't give bogus
 387 dnl values.
 388 dnl
 389 dnl Parameters:
 390 dnl $1 = option name
 391 dnl $2 = help-string
 392 dnl $3 = action to perform if option is not default
 393 dnl $4 = action if perform if option is default
 394 dnl $5 = default option value (either 'yes' or 'no')
 395 AC_DEFUN([CF_ARG_OPTION],
 396 [AC_ARG_ENABLE([$1],[$2],[test "$enableval" != ifelse([$5],no,yes,no) && enableval=ifelse([$5],no,no,yes)
 397         if test "$enableval" != "$5" ; then
 398 ifelse([$3],,[    :]dnl
 399 ,[    $3]) ifelse([$4],,,[
 400         else
 401                 $4])
 402         fi],[enableval=$5 ifelse([$4],,,[
 403         $4
 404 ])dnl
 405 ])])dnl
 406 dnl ---------------------------------------------------------------------------
 407 dnl CF_AR_FLAGS version: 9 updated: 2021/01/01 13:31:04
 408 dnl -----------
 409 dnl Check for suitable "ar" (archiver) options for updating an archive.
 410 dnl
 411 dnl In particular, handle some obsolete cases where the "-" might be omitted,
 412 dnl as well as a workaround for breakage of make's archive rules by the GNU
 413 dnl binutils "ar" program.
 414 AC_DEFUN([CF_AR_FLAGS],[
 415 AC_REQUIRE([CF_PROG_AR])
 416
 417 AC_CACHE_CHECK(for options to update archives, cf_cv_ar_flags,[
 418         case "$cf_cv_system_name" in
 419         (*-msvc*)
 420                 cf_cv_ar_flags=''
 421                 cat >mk_static_lib.sh <<-EOF
 422                 #!$SHELL
 423                 MSVC_BIN="[$]AR"
 424                 out="\[$]1"
 425                 shift
 426                 exec \[$]MSVC_BIN -out:"\[$]out" \[$]@
 427                 EOF
 428                 chmod +x mk_static_lib.sh
 429                 AR=`pwd`/mk_static_lib.sh
 430                 ;;
 431         (*)
 432                 cf_cv_ar_flags=unknown
 433                 for cf_ar_flags in -curvU -curv curv -crv crv -cqv cqv -rv rv
 434                 do
 435
 436                         # check if $ARFLAGS already contains this choice
 437                         if test "x$ARFLAGS" != "x" ; then
 438                                 cf_check_ar_flags=`echo "x$ARFLAGS" | sed -e "s/$cf_ar_flags\$//" -e "s/$cf_ar_flags / /"`
 439                                 if test "x$ARFLAGS" != "$cf_check_ar_flags" ; then
 440                                         cf_cv_ar_flags=
 441                                         break
 442                                 fi
 443                         fi
 444
 445                         rm -f "conftest.$ac_cv_objext"
 446                         rm -f conftest.a
 447
 448                         cat >"conftest.$ac_ext" <<EOF
 449 #line __oline__ "configure"
 450 int     testdata[[3]] = { 123, 456, 789 };
 451 EOF
 452                         if AC_TRY_EVAL(ac_compile) ; then
 453                                 echo "$AR $ARFLAGS $cf_ar_flags conftest.a conftest.$ac_cv_objext" >&AC_FD_CC
 454                                 $AR $ARFLAGS "$cf_ar_flags" conftest.a "conftest.$ac_cv_objext" 2>&AC_FD_CC 1>/dev/null
 455                                 if test -f conftest.a ; then
 456                                         cf_cv_ar_flags="$cf_ar_flags"
 457                                         break
 458                                 fi
 459                         else
 460                                 CF_VERBOSE(cannot compile test-program)
 461                                 break
 462                         fi
 463                 done
 464                 rm -f conftest.a "conftest.$ac_ext" "conftest.$ac_cv_objext"
 465                 ;;
 466         esac
 467 ])
 468
 469 if test -n "$ARFLAGS" ; then
 470         if test -n "$cf_cv_ar_flags" ; then
 471                 ARFLAGS="$ARFLAGS $cf_cv_ar_flags"
 472         fi
 473 else
 474         ARFLAGS=$cf_cv_ar_flags
 475 fi
 476
 477 AC_SUBST(ARFLAGS)
 478 ])
 479 dnl ---------------------------------------------------------------------------
 480 dnl CF_BUILD_CC version: 11 updated: 2022/12/04 15:40:08
 481 dnl -----------
 482 dnl If we're cross-compiling, allow the user to override the tools and their
 483 dnl options.  The configure script is oriented toward identifying the host
 484 dnl compiler, etc., but we need a build compiler to generate parts of the
 485 dnl source.
 486 dnl
 487 dnl $1 = default for $CPPFLAGS
 488 dnl $2 = default for $LIBS
 489 AC_DEFUN([CF_BUILD_CC],[
 490 CF_ACVERSION_CHECK(2.52,,
 491         [AC_REQUIRE([CF_PROG_EXT])])
 492 if test "$cross_compiling" = yes ; then
 493
 494         # defaults that we might want to override
 495         : ${BUILD_CFLAGS:=''}
 496         : ${BUILD_CPPFLAGS:='ifelse([$1],,,[$1])'}
 497         : ${BUILD_LDFLAGS:=''}
 498         : ${BUILD_LIBS:='ifelse([$2],,,[$2])'}
 499         : ${BUILD_EXEEXT:='$x'}
 500         : ${BUILD_OBJEXT:='o'}
 501
 502         AC_ARG_WITH(build-cc,
 503                 [  --with-build-cc=XXX     the build C compiler ($BUILD_CC)],
 504                 [BUILD_CC="$withval"],
 505                 [AC_CHECK_PROGS(BUILD_CC, [gcc clang c99 c89 cc cl],none)])
 506         AC_MSG_CHECKING(for native build C compiler)
 507         AC_MSG_RESULT($BUILD_CC)
 508
 509         AC_MSG_CHECKING(for native build C preprocessor)
 510         AC_ARG_WITH(build-cpp,
 511                 [  --with-build-cpp=XXX    the build C preprocessor ($BUILD_CPP)],
 512                 [BUILD_CPP="$withval"],
 513                 [BUILD_CPP='${BUILD_CC} -E'])
 514         AC_MSG_RESULT($BUILD_CPP)
 515
 516         AC_MSG_CHECKING(for native build C flags)
 517         AC_ARG_WITH(build-cflags,
 518                 [  --with-build-cflags=XXX the build C compiler-flags ($BUILD_CFLAGS)],
 519                 [BUILD_CFLAGS="$withval"])
 520         AC_MSG_RESULT($BUILD_CFLAGS)
 521
 522         AC_MSG_CHECKING(for native build C preprocessor-flags)
 523         AC_ARG_WITH(build-cppflags,
 524                 [  --with-build-cppflags=XXX the build C preprocessor-flags ($BUILD_CPPFLAGS)],
 525                 [BUILD_CPPFLAGS="$withval"])
 526         AC_MSG_RESULT($BUILD_CPPFLAGS)
 527
 528         AC_MSG_CHECKING(for native build linker-flags)
 529         AC_ARG_WITH(build-ldflags,
 530                 [  --with-build-ldflags=XXX the build linker-flags ($BUILD_LDFLAGS)],
 531                 [BUILD_LDFLAGS="$withval"])
 532         AC_MSG_RESULT($BUILD_LDFLAGS)
 533
 534         AC_MSG_CHECKING(for native build linker-libraries)
 535         AC_ARG_WITH(build-libs,
 536                 [  --with-build-libs=XXX   the build libraries (${BUILD_LIBS})],
 537                 [BUILD_LIBS="$withval"])
 538         AC_MSG_RESULT($BUILD_LIBS)
 539
 540         # this assumes we're on Unix.
 541         BUILD_EXEEXT=
 542         BUILD_OBJEXT=o
 543
 544         : ${BUILD_CC:='${CC}'}
 545
 546         AC_MSG_CHECKING(if the build-compiler "$BUILD_CC" works)
 547
 548         cf_save_crossed=$cross_compiling
 549         cf_save_ac_link=$ac_link
 550         cross_compiling=no
 551         cf_build_cppflags=$BUILD_CPPFLAGS
 552         test "$cf_build_cppflags" = "#" && cf_build_cppflags=
 553         ac_link='$BUILD_CC -o "conftest$ac_exeext" $BUILD_CFLAGS $cf_build_cppflags $BUILD_LDFLAGS "conftest.$ac_ext" $BUILD_LIBS >&AS_MESSAGE_LOG_FD'
 554
 555         AC_TRY_RUN([#include <stdio.h>
 556                 int main(int argc, char *argv[])
 557                 {
 558                         ${cf_cv_main_return:-return}(argc < 0 || argv == 0 || argv[0] == 0);
 559                 }
 560         ],
 561                 cf_ok_build_cc=yes,
 562                 cf_ok_build_cc=no,
 563                 cf_ok_build_cc=unknown)
 564
 565         cross_compiling=$cf_save_crossed
 566         ac_link=$cf_save_ac_link
 567
 568         AC_MSG_RESULT($cf_ok_build_cc)
 569
 570         if test "$cf_ok_build_cc" != yes
 571         then
 572                 AC_MSG_ERROR([Cross-build requires two compilers.
 573 Use --with-build-cc to specify the native compiler.])
 574         fi
 575
 576 else
 577         : ${BUILD_CC:='${CC}'}
 578         : ${BUILD_CPP:='${CPP}'}
 579         : ${BUILD_CFLAGS:='${CFLAGS}'}
 580         : ${BUILD_CPPFLAGS:='${CPPFLAGS}'}
 581         : ${BUILD_LDFLAGS:='${LDFLAGS}'}
 582         : ${BUILD_LIBS:='${LIBS}'}
 583         : ${BUILD_EXEEXT:='$x'}
 584         : ${BUILD_OBJEXT:='o'}
 585 fi
 586
 587 AC_SUBST(BUILD_CC)
 588 AC_SUBST(BUILD_CPP)
 589 AC_SUBST(BUILD_CFLAGS)
 590 AC_SUBST(BUILD_CPPFLAGS)
 591 AC_SUBST(BUILD_LDFLAGS)
 592 AC_SUBST(BUILD_LIBS)
 593 AC_SUBST(BUILD_EXEEXT)
 594 AC_SUBST(BUILD_OBJEXT)
 595 ])dnl
 596 dnl ---------------------------------------------------------------------------
 597 dnl CF_C11_NORETURN version: 4 updated: 2023/02/18 17:41:25
 598 dnl ---------------
 599 AC_DEFUN([CF_C11_NORETURN],
 600 [
 601 AC_MSG_CHECKING(if you want to use C11 _Noreturn feature)
 602 CF_ARG_ENABLE(stdnoreturn,
 603         [  --enable-stdnoreturn    enable C11 _Noreturn feature for diagnostics],
 604         [enable_stdnoreturn=yes],
 605         [enable_stdnoreturn=no])
 606 AC_MSG_RESULT($enable_stdnoreturn)
 607
 608 if test $enable_stdnoreturn = yes; then
 609 AC_CACHE_CHECK([for C11 _Noreturn feature], cf_cv_c11_noreturn,
 610         [AC_TRY_COMPILE([
 611 $ac_includes_default
 612 #include <stdnoreturn.h>
 613 static _Noreturn void giveup(void) { exit(0); }
 614         ],
 615         [if (feof(stdin)) giveup()],
 616         cf_cv_c11_noreturn=yes,
 617         cf_cv_c11_noreturn=no)
 618         ])
 619 else
 620         cf_cv_c11_noreturn=no,
 621 fi
 622
 623 if test "$cf_cv_c11_noreturn" = yes; then
 624         AC_DEFINE(HAVE_STDNORETURN_H, 1,[Define if <stdnoreturn.h> header is available and working])
 625         AC_DEFINE_UNQUOTED(STDC_NORETURN,_Noreturn,[Define if C11 _Noreturn keyword is supported])
 626         HAVE_STDNORETURN_H=1
 627 else
 628         HAVE_STDNORETURN_H=0
 629 fi
 630
 631 AC_SUBST(HAVE_STDNORETURN_H)
 632 AC_SUBST(STDC_NORETURN)
 633 ])dnl
 634 dnl ---------------------------------------------------------------------------
 635 dnl CF_CC_ENV_FLAGS version: 11 updated: 2023/02/20 11:15:46
 636 dnl ---------------
 637 dnl Check for user's environment-breakage by stuffing CFLAGS/CPPFLAGS content
 638 dnl into CC.  This will not help with broken scripts that wrap the compiler
 639 dnl with options, but eliminates a more common category of user confusion.
 640 dnl
 641 dnl In particular, it addresses the problem of being able to run the C
 642 dnl preprocessor in a consistent manner.
 643 dnl
 644 dnl Caveat: this also disallows blanks in the pathname for the compiler, but
 645 dnl the nuisance of having inconsistent settings for compiler and preprocessor
 646 dnl outweighs that limitation.
 647 AC_DEFUN([CF_CC_ENV_FLAGS],
 648 [
 649 # This should have been defined by AC_PROG_CC
 650 : "${CC:=cc}"
 651
 652 AC_MSG_CHECKING(\$CFLAGS variable)
 653 case "x$CFLAGS" in
 654 (*-[[IUD]]*)
 655         AC_MSG_RESULT(broken)
 656         AC_MSG_WARN(your environment uses the CFLAGS variable to hold CPPFLAGS options)
 657         cf_flags="$CFLAGS"
 658         CFLAGS=
 659         for cf_arg in $cf_flags
 660         do
 661                 CF_ADD_CFLAGS($cf_arg)
 662         done
 663         ;;
 664 (*)
 665         AC_MSG_RESULT(ok)
 666         ;;
 667 esac
 668
 669 AC_MSG_CHECKING(\$CC variable)
 670 case "$CC" in
 671 (*[[\ \ ]]-*)
 672         AC_MSG_RESULT(broken)
 673         AC_MSG_WARN(your environment uses the CC variable to hold CFLAGS/CPPFLAGS options)
 674         # humor him...
 675         cf_prog=`echo "$CC" | sed -e 's/        / /g' -e 's/[[ ]]* / /g' -e 's/[[ ]]*[[ ]]-[[^ ]].*//'`
 676         cf_flags=`echo "$CC" | sed -e "s%^$cf_prog%%"`
 677         CC="$cf_prog"
 678         for cf_arg in $cf_flags
 679         do
 680                 case "x$cf_arg" in
 681                 (x-[[IUDfgOW]]*)
 682                         CF_ADD_CFLAGS($cf_arg)
 683                         ;;
 684                 (*)
 685                         CC="$CC $cf_arg"
 686                         ;;
 687                 esac
 688         done
 689         CF_VERBOSE(resulting CC: '$CC')
 690         CF_VERBOSE(resulting CFLAGS: '$CFLAGS')
 691         CF_VERBOSE(resulting CPPFLAGS: '$CPPFLAGS')
 692         ;;
 693 (*)
 694         AC_MSG_RESULT(ok)
 695         ;;
 696 esac
 697 ])dnl
 698 dnl ---------------------------------------------------------------------------
 699 dnl CF_CFG_DEFAULTS version: 16 updated: 2021/01/04 19:33:05
 700 dnl ---------------
 701 dnl Determine the default configuration into which we'll install ncurses.  This
 702 dnl can be overridden by the user's command-line options.  There's two items to
 703 dnl look for:
 704 dnl     1. the prefix (e.g., /usr)
 705 dnl     2. the header files (e.g., /usr/include/ncurses)
 706 dnl We'll look for a previous installation of ncurses and use the same defaults.
 707 dnl
 708 dnl We don't use AC_PREFIX_DEFAULT, because it gets evaluated too soon, and
 709 dnl we don't use AC_PREFIX_PROGRAM, because we cannot distinguish ncurses's
 710 dnl programs from a vendor's.
 711 AC_DEFUN([CF_CFG_DEFAULTS],
 712 [AC_REQUIRE([AC_PROG_FGREP])dnl
 713
 714 AC_MSG_CHECKING(for prefix)
 715 if test "x$prefix" = "xNONE" ; then
 716         case "$cf_cv_system_name" in
 717                 # non-vendor systems don't have a conflict
 718         (openbsd*|freebsd*|mirbsd*|linux*|cygwin*|msys*|k*bsd*-gnu|mingw*)
 719                 prefix=/usr
 720                 ;;
 721         (*)     prefix=$ac_default_prefix
 722                 ;;
 723         esac
 724 fi
 725 AC_MSG_RESULT($prefix)
 726
 727 if test "x$prefix" = "xNONE" ; then
 728 AC_MSG_CHECKING(for default include-directory)
 729 test -n "$verbose" && echo 1>&AC_FD_MSG
 730 for cf_symbol in \
 731         "$includedir" \
 732         "$includedir/ncurses" \
 733         "$prefix/include" \
 734         "$prefix/include/ncurses" \
 735         /usr/local/include \
 736         /usr/local/include/ncurses \
 737         /usr/include \
 738         /usr/include/ncurses
 739 do
 740         cf_dir=`eval echo "$cf_symbol"`
 741         if test -f "$cf_dir/curses.h" ; then
 742         if ( ${FGREP-fgrep} NCURSES_VERSION "$cf_dir/curses.h" >/dev/null 2>&1 ) ; then
 743                 includedir="$cf_symbol"
 744                 test -n "$verbose"  && echo $ECHO_N "   found " 1>&AC_FD_MSG
 745                 break
 746         fi
 747         fi
 748         test -n "$verbose"  && echo "   tested $cf_dir" 1>&AC_FD_MSG
 749 done
 750 AC_MSG_RESULT($includedir)
 751 fi
 752 ])dnl
 753 dnl ---------------------------------------------------------------------------
 754 dnl CF_CHECK_CACHE version: 13 updated: 2020/12/31 10:54:15
 755 dnl --------------
 756 dnl Check if we're accidentally using a cache from a different machine.
 757 dnl Derive the system name, as a check for reusing the autoconf cache.
 758 dnl
 759 dnl If we've packaged config.guess and config.sub, run that (since it does a
 760 dnl better job than uname).  Normally we'll use AC_CANONICAL_HOST, but allow
 761 dnl an extra parameter that we may override, e.g., for AC_CANONICAL_SYSTEM
 762 dnl which is useful in cross-compiles.
 763 dnl
 764 dnl Note: we would use $ac_config_sub, but that is one of the places where
 765 dnl autoconf 2.5x broke compatibility with autoconf 2.13
 766 AC_DEFUN([CF_CHECK_CACHE],
 767 [
 768 if test -f "$srcdir/config.guess" || test -f "$ac_aux_dir/config.guess" ; then
 769         ifelse([$1],,[AC_CANONICAL_HOST],[$1])
 770         system_name="$host_os"
 771 else
 772         system_name="`(uname -s -r) 2>/dev/null`"
 773         if test -z "$system_name" ; then
 774                 system_name="`(hostname) 2>/dev/null`"
 775         fi
 776 fi
 777 test -n "$system_name" && AC_DEFINE_UNQUOTED(SYSTEM_NAME,"$system_name",[Define to the system name.])
 778 AC_CACHE_VAL(cf_cv_system_name,[cf_cv_system_name="$system_name"])
 779
 780 test -z "$system_name" && system_name="$cf_cv_system_name"
 781 test -n "$cf_cv_system_name" && AC_MSG_RESULT(Configuring for $cf_cv_system_name)
 782
 783 if test ".$system_name" != ".$cf_cv_system_name" ; then
 784         AC_MSG_RESULT(Cached system name ($system_name) does not agree with actual ($cf_cv_system_name))
 785         AC_MSG_ERROR("Please remove config.cache and try again.")
 786 fi
 787 ])dnl
 788 dnl ---------------------------------------------------------------------------
 789 dnl CF_CHECK_GNAT_VERSION version: 4 updated: 2021/01/01 13:31:04
 790 dnl ---------------------
 791 AC_DEFUN([CF_CHECK_GNAT_VERSION],
 792 [
 793 AC_REQUIRE([CF_GNAT_VERSION])
 794 case "$cf_cv_gnat_version" in
 795 (3.1[[1-9]]*|3.[[2-9]]*|[[4-9]].*|[[1-9]][[0-9]].[[0-9]]*|20[[0-9]][[0-9]])
 796         cf_cv_prog_gnat_correct=yes
 797         ;;
 798 (*)
 799         AC_MSG_WARN(Unsupported GNAT version $cf_cv_gnat_version. We require 3.11 or better. Disabling Ada95 binding.)
 800         cf_cv_prog_gnat_correct=no
 801         ;;
 802 esac
 803 ])
 804 dnl ---------------------------------------------------------------------------
 805 dnl CF_CHECK_LIBSSP version: 1 updated: 2021/10/30 10:40:19
 806 dnl ---------------
 807 dnl Check if libssp is needed, e.g., to work around misconfigured libraries
 808 dnl used in cross-compiling to MinGW.
 809 AC_DEFUN([CF_CHECK_LIBSSP],[
 810 AC_CACHE_CHECK(if ssp library is needed,cf_cv_need_libssp,[
 811 AC_TRY_LINK([
 812 #include <sys/types.h>
 813 #include <dirent.h>
 814 ],[
 815        DIR *dp = opendir(".");
 816 ],cf_cv_need_libssp=no,[
 817         cf_save_LIBS="$LIBS"
 818         LIBS="$LIBS -lssp"
 819         AC_TRY_LINK([
 820 #include <sys/types.h>
 821 #include <dirent.h>
 822         ],[
 823                    DIR *dp = opendir(".");
 824         ],cf_cv_need_libssp=yes,
 825           cf_cv_need_libssp=maybe)
 826         LIBS="$cf_save_LIBS"
 827 ])dnl
 828 ])
 829
 830 if test "x$cf_cv_need_libssp" = xyes
 831 then
 832         CF_ADD_LIB(ssp)
 833 fi
 834 ])dnl
 835 dnl ---------------------------------------------------------------------------
 836 dnl CF_CLANG_COMPILER version: 9 updated: 2023/02/18 17:41:25
 837 dnl -----------------
 838 dnl Check if the given compiler is really clang.  clang's C driver defines
 839 dnl __GNUC__ (fooling the configure script into setting $GCC to yes) but does
 840 dnl not ignore some gcc options.
 841 dnl
 842 dnl This macro should be run "soon" after AC_PROG_CC or AC_PROG_CPLUSPLUS, to
 843 dnl ensure that it is not mistaken for gcc/g++.  It is normally invoked from
 844 dnl the wrappers for gcc and g++ warnings.
 845 dnl
 846 dnl $1 = GCC (default) or GXX
 847 dnl $2 = CLANG_COMPILER (default)
 848 dnl $3 = CFLAGS (default) or CXXFLAGS
 849 AC_DEFUN([CF_CLANG_COMPILER],[
 850 ifelse([$2],,CLANG_COMPILER,[$2])=no
 851
 852 if test "$ifelse([$1],,[$1],GCC)" = yes ; then
 853         AC_MSG_CHECKING(if this is really Clang ifelse([$1],GXX,C++,C) compiler)
 854         cf_save_CFLAGS="$ifelse([$3],,CFLAGS,[$3])"
 855         AC_TRY_COMPILE([],[
 856 #ifdef __clang__
 857 #else
 858 #error __clang__ is not defined
 859 #endif
 860 ],[ifelse([$2],,CLANG_COMPILER,[$2])=yes
 861 ],[])
 862         ifelse([$3],,CFLAGS,[$3])="$cf_save_CFLAGS"
 863         AC_MSG_RESULT($ifelse([$2],,CLANG_COMPILER,[$2]))
 864 fi
 865
 866 CLANG_VERSION=none
 867
 868 if test "x$ifelse([$2],,CLANG_COMPILER,[$2])" = "xyes" ; then
 869         case "$CC" in
 870         (c[[1-9]][[0-9]]|*/c[[1-9]][[0-9]])
 871                 AC_MSG_WARN(replacing broken compiler alias $CC)
 872                 CFLAGS="$CFLAGS -std=`echo "$CC" | sed -e 's%.*/%%'`"
 873                 CC=clang
 874                 ;;
 875         esac
 876
 877         AC_MSG_CHECKING(version of $CC)
 878         CLANG_VERSION="`$CC --version 2>/dev/null | sed -e '2,$d' -e 's/^.*(CLANG[[^)]]*) //' -e 's/^.*(Debian[[^)]]*) //' -e 's/^[[^0-9.]]*//' -e 's/[[^0-9.]].*//'`"
 879         test -z "$CLANG_VERSION" && CLANG_VERSION=unknown
 880         AC_MSG_RESULT($CLANG_VERSION)
 881
 882         for cf_clang_opt in \
 883                 -Qunused-arguments \
 884                 -Wno-error=implicit-function-declaration
 885         do
 886                 AC_MSG_CHECKING(if option $cf_clang_opt works)
 887                 cf_save_CFLAGS="$CFLAGS"
 888                 CFLAGS="$CFLAGS $cf_clang_opt"
 889                 AC_TRY_LINK([
 890                         #include <stdio.h>],[
 891                         printf("hello!\\n");],[
 892                         cf_clang_optok=yes],[
 893                         cf_clang_optok=no])
 894                 AC_MSG_RESULT($cf_clang_optok)
 895                 CFLAGS="$cf_save_CFLAGS"
 896                 if test "$cf_clang_optok" = yes; then
 897                         CF_VERBOSE(adding option $cf_clang_opt)
 898                         CF_APPEND_TEXT(CFLAGS,$cf_clang_opt)
 899                 fi
 900         done
 901 fi
 902 ])
 903 dnl ---------------------------------------------------------------------------
 904 dnl CF_CONST_X_STRING version: 7 updated: 2021/06/07 17:39:17
 905 dnl -----------------
 906 dnl The X11R4-X11R6 Xt specification uses an ambiguous String type for most
 907 dnl character-strings.
 908 dnl
 909 dnl It is ambiguous because the specification accommodated the pre-ANSI
 910 dnl compilers bundled by more than one vendor in lieu of providing a standard C
 911 dnl compiler other than by costly add-ons.  Because of this, the specification
 912 dnl did not take into account the use of const for telling the compiler that
 913 dnl string literals would be in readonly memory.
 914 dnl
 915 dnl As a workaround, one could (starting with X11R5) define XTSTRINGDEFINES, to
 916 dnl let the compiler decide how to represent Xt's strings which were #define'd.
 917 dnl That does not solve the problem of using the block of Xt's strings which
 918 dnl are compiled into the library (and is less efficient than one might want).
 919 dnl
 920 dnl Xt specification 7 introduces the _CONST_X_STRING symbol which is used both
 921 dnl when compiling the library and compiling using the library, to tell the
 922 dnl compiler that String is const.
 923 AC_DEFUN([CF_CONST_X_STRING],
 924 [
 925 AC_REQUIRE([AC_PATH_XTRA])
 926
 927 CF_SAVE_XTRA_FLAGS([CF_CONST_X_STRING])
 928
 929 AC_TRY_COMPILE(
 930 [
 931 #include <stdlib.h>
 932 #include <X11/Intrinsic.h>
 933 ],
 934 [String foo = malloc(1); free((void*)foo)],[
 935
 936 AC_CACHE_CHECK(for X11/Xt const-feature,cf_cv_const_x_string,[
 937         AC_TRY_COMPILE(
 938                 [
 939 #define _CONST_X_STRING /* X11R7.8 (perhaps) */
 940 #undef  XTSTRINGDEFINES /* X11R5 and later */
 941 #include <stdlib.h>
 942 #include <X11/Intrinsic.h>
 943                 ],[String foo = malloc(1); *foo = 0],[
 944                         cf_cv_const_x_string=no
 945                 ],[
 946                         cf_cv_const_x_string=yes
 947                 ])
 948 ])
 949
 950 CF_RESTORE_XTRA_FLAGS([CF_CONST_X_STRING])
 951
 952 case "$cf_cv_const_x_string" in
 953 (no)
 954         CF_APPEND_TEXT(CPPFLAGS,-DXTSTRINGDEFINES)
 955         ;;
 956 (*)
 957         CF_APPEND_TEXT(CPPFLAGS,-D_CONST_X_STRING)
 958         ;;
 959 esac
 960
 961 ])
 962 ])dnl
 963 dnl ---------------------------------------------------------------------------
 964 dnl CF_CONST_X_STRING version: 7 updated: 2021/06/07 17:39:17
 965 dnl -----------------
 966 dnl The X11R4-X11R6 Xt specification uses an ambiguous String type for most
 967 dnl character-strings.
 968 dnl
 969 dnl It is ambiguous because the specification accommodated the pre-ANSI
 970 dnl compilers bundled by more than one vendor in lieu of providing a standard C
 971 dnl compiler other than by costly add-ons.  Because of this, the specification
 972 dnl did not take into account the use of const for telling the compiler that
 973 dnl string literals would be in readonly memory.
 974 dnl
 975 dnl As a workaround, one could (starting with X11R5) define XTSTRINGDEFINES, to
 976 dnl let the compiler decide how to represent Xt's strings which were #define'd.
 977 dnl That does not solve the problem of using the block of Xt's strings which
 978 dnl are compiled into the library (and is less efficient than one might want).
 979 dnl
 980 dnl Xt specification 7 introduces the _CONST_X_STRING symbol which is used both
 981 dnl when compiling the library and compiling using the library, to tell the
 982 dnl compiler that String is const.
 983 AC_DEFUN([CF_CONST_X_STRING],
 984 [
 985 AC_REQUIRE([AC_PATH_XTRA])
 986
 987 CF_SAVE_XTRA_FLAGS([CF_CONST_X_STRING])
 988
 989 AC_TRY_COMPILE(
 990 [
 991 #include <stdlib.h>
 992 #include <X11/Intrinsic.h>
 993 ],
 994 [String foo = malloc(1); free((void*)foo)],[
 995
 996 AC_CACHE_CHECK(for X11/Xt const-feature,cf_cv_const_x_string,[
 997         AC_TRY_COMPILE(
 998                 [
 999 #define _CONST_X_STRING /* X11R7.8 (perhaps) */
1000 #undef  XTSTRINGDEFINES /* X11R5 and later */
1001 #include <stdlib.h>
1002 #include <X11/Intrinsic.h>
1003                 ],[String foo = malloc(1); *foo = 0],[
1004                         cf_cv_const_x_string=no
1005                 ],[
1006                         cf_cv_const_x_string=yes
1007                 ])
1008 ])
1009
1010 CF_RESTORE_XTRA_FLAGS([CF_CONST_X_STRING])
1011
1012 case "$cf_cv_const_x_string" in
1013 (no)
1014         CF_APPEND_TEXT(CPPFLAGS,-DXTSTRINGDEFINES)
1015         ;;
1016 (*)
1017         CF_APPEND_TEXT(CPPFLAGS,-D_CONST_X_STRING)
1018         ;;
1019 esac
1020
1021 ])
1022 ])dnl
1023 dnl ---------------------------------------------------------------------------
1024 dnl CF_CURSES_HEADER version: 6 updated: 2022/12/02 20:06:52
1025 dnl ----------------
1026 dnl Find a "curses" header file, e.g,. "curses.h", or one of the more common
1027 dnl variations of ncurses' installs.
1028 dnl
1029 dnl $1 = ncurses when looking for ncurses, or is empty
1030 AC_DEFUN([CF_CURSES_HEADER],[
1031 AC_CACHE_CHECK(if we have identified curses headers,cf_cv_ncurses_header,[
1032 cf_cv_ncurses_header=none
1033 for cf_header in \
1034         ncurses.h ifelse($1,,,[$1/ncurses.h]) \
1035         curses.h ifelse($1,,,[$1/curses.h]) ifelse($1,,[ncurses/ncurses.h ncurses/curses.h])
1036 do
1037 AC_TRY_COMPILE([#include <${cf_header}>],
1038         [initscr(); endwin()],
1039         [cf_cv_ncurses_header=$cf_header; break],[])
1040 done
1041 ])
1042
1043 if test "$cf_cv_ncurses_header" = none ; then
1044         AC_MSG_ERROR(No curses header-files found)
1045 fi
1046
1047 # cheat, to get the right #define's for HAVE_NCURSES_H, etc.
1048 AC_CHECK_HEADERS($cf_cv_ncurses_header)
1049 ])dnl
1050 dnl ---------------------------------------------------------------------------
1051 dnl CF_DIRNAME version: 5 updated: 2020/12/31 20:19:42
1052 dnl ----------
1053 dnl "dirname" is not portable, so we fake it with a shell script.
1054 AC_DEFUN([CF_DIRNAME],[$1=`echo "$2" | sed -e 's%/[[^/]]*$%%'`])dnl
1055 dnl ---------------------------------------------------------------------------
1056 dnl CF_DISABLE_ECHO version: 14 updated: 2021/09/04 06:35:04
1057 dnl ---------------
1058 dnl You can always use "make -n" to see the actual options, but it is hard to
1059 dnl pick out/analyze warning messages when the compile-line is long.
1060 dnl
1061 dnl Sets:
1062 dnl     ECHO_LT - symbol to control if libtool is verbose
1063 dnl     ECHO_LD - symbol to prefix "cc -o" lines
1064 dnl     RULE_CC - symbol to put before implicit "cc -c" lines (e.g., .c.o)
1065 dnl     SHOW_CC - symbol to put before explicit "cc -c" lines
1066 dnl     ECHO_CC - symbol to put before any "cc" line
1067 dnl
1068 AC_DEFUN([CF_DISABLE_ECHO],[
1069 AC_MSG_CHECKING(if you want to see long compiling messages)
1070 CF_ARG_DISABLE(echo,
1071         [  --disable-echo          do not display "compiling" commands],
1072         [
1073         ECHO_LT='--silent'
1074         ECHO_LD='@echo linking [$]@;'
1075         RULE_CC='@echo compiling [$]<'
1076         SHOW_CC='@echo compiling [$]@'
1077         ECHO_CC='@'
1078 ],[
1079         ECHO_LT=''
1080         ECHO_LD=''
1081         RULE_CC=''
1082         SHOW_CC=''
1083         ECHO_CC=''
1084 ])
1085 AC_MSG_RESULT($enableval)
1086 AC_SUBST(ECHO_LT)
1087 AC_SUBST(ECHO_LD)
1088 AC_SUBST(RULE_CC)
1089 AC_SUBST(SHOW_CC)
1090 AC_SUBST(ECHO_CC)
1091 ])dnl
1092 dnl ---------------------------------------------------------------------------
1093 dnl CF_DISABLE_GNAT_PROJECTS version: 1 updated: 2014/06/01 11:34:00
1094 dnl ------------------------
1095 AC_DEFUN([CF_DISABLE_GNAT_PROJECTS],[
1096 AC_MSG_CHECKING(if we want to use GNAT projects)
1097 CF_ARG_DISABLE(gnat-projects,
1098         [  --disable-gnat-projects test: disable GNAT projects even if usable],
1099         [enable_gnat_projects=no],
1100         [enable_gnat_projects=yes])
1101 AC_MSG_RESULT($enable_gnat_projects)
1102 ])dnl
1103 dnl ---------------------------------------------------------------------------
1104 dnl CF_ENABLE_BROKEN_LINKER version: 2 updated: 2021/01/02 17:09:14
1105 dnl -----------------------
1106 dnl Some linkers cannot reference a data-only object.  Cygwin used to be one.
1107 dnl This usually follows CF_LINK_DATAONLY, but is not required in case we need
1108 dnl an unconditional feature.
1109 AC_DEFUN([CF_ENABLE_BROKEN_LINKER],[
1110
1111 AC_MSG_CHECKING(if you want broken-linker support code)
1112 AC_ARG_ENABLE(broken_linker,
1113         [  --enable-broken_linker  compile with broken-linker support code],
1114         [with_broken_linker=$enableval],
1115         [with_broken_linker=no])
1116 AC_MSG_RESULT($with_broken_linker)
1117
1118 : "${BROKEN_LINKER:=0}"
1119 if test "x$with_broken_linker" = xyes ; then
1120         AC_DEFINE(BROKEN_LINKER,1,[Define to 1 to work around linkers which cannot link data-only modules])
1121         BROKEN_LINKER=1
1122 fi
1123 AC_SUBST(BROKEN_LINKER)
1124 ])dnl
1125 dnl ---------------------------------------------------------------------------
1126 dnl CF_ENABLE_WARNINGS version: 9 updated: 2021/01/05 19:40:50
1127 dnl ------------------
1128 dnl Configure-option to enable gcc warnings
1129 dnl
1130 dnl $1 = extra options to add, if supported
1131 dnl $2 = option for checking attributes.  By default, this is done when
1132 dnl      warnings are enabled.  For other values:
1133 dnl      yes: always do this, e.g., to use in generated library-headers
1134 dnl      no: never do this
1135 AC_DEFUN([CF_ENABLE_WARNINGS],[
1136 if test "$GCC" = yes || test "$GXX" = yes
1137 then
1138 CF_FIX_WARNINGS(CFLAGS)
1139 CF_FIX_WARNINGS(CPPFLAGS)
1140 CF_FIX_WARNINGS(LDFLAGS)
1141 AC_MSG_CHECKING(if you want to turn on gcc warnings)
1142 CF_ARG_ENABLE(warnings,
1143         [  --enable-warnings       test: turn on gcc compiler warnings],
1144         [enable_warnings=yes],
1145         [enable_warnings=no])
1146 AC_MSG_RESULT($enable_warnings)
1147 if test "$enable_warnings" = "yes"
1148 then
1149         ifelse($2,,[CF_GCC_ATTRIBUTES])
1150         CF_GCC_WARNINGS($1)
1151 fi
1152 ifelse($2,yes,[CF_GCC_ATTRIBUTES])
1153 fi
1154 ])dnl
1155 dnl ---------------------------------------------------------------------------
1156 dnl CF_FIND_LIBRARY version: 11 updated: 2021/01/02 09:31:20
1157 dnl ---------------
1158 dnl Look for a non-standard library, given parameters for AC_TRY_LINK.  We
1159 dnl prefer a standard location, and use -L options only if we do not find the
1160 dnl library in the standard library location(s).
1161 dnl     $1 = library name
1162 dnl     $2 = library class, usually the same as library name
1163 dnl     $3 = includes
1164 dnl     $4 = code fragment to compile/link
1165 dnl     $5 = corresponding function-name
1166 dnl     $6 = flag, nonnull if failure should not cause an error-exit
1167 dnl
1168 dnl Sets the variable "$cf_libdir" as a side-effect, so we can see if we had
1169 dnl to use a -L option.
1170 AC_DEFUN([CF_FIND_LIBRARY],
1171 [
1172         eval 'cf_cv_have_lib_'"$1"'=no'
1173         cf_libdir=""
1174         AC_CHECK_FUNC($5,
1175                 eval 'cf_cv_have_lib_'"$1"'=yes',[
1176                 cf_save_LIBS="$LIBS"
1177                 AC_MSG_CHECKING(for $5 in -l$1)
1178                 LIBS="-l$1 $LIBS"
1179                 AC_TRY_LINK([$3],[$4],
1180                         [AC_MSG_RESULT(yes)
1181                          eval 'cf_cv_have_lib_'"$1"'=yes'
1182                         ],
1183                         [AC_MSG_RESULT(no)
1184                         CF_LIBRARY_PATH(cf_search,$2)
1185                         for cf_libdir in $cf_search
1186                         do
1187                                 AC_MSG_CHECKING(for -l$1 in $cf_libdir)
1188                                 LIBS="-L$cf_libdir -l$1 $cf_save_LIBS"
1189                                 AC_TRY_LINK([$3],[$4],
1190                                         [AC_MSG_RESULT(yes)
1191                                          eval 'cf_cv_have_lib_'"$1"'=yes'
1192                                          break],
1193                                         [AC_MSG_RESULT(no)
1194                                          LIBS="$cf_save_LIBS"])
1195                         done
1196                         ])
1197                 ])
1198 eval 'cf_found_library="[$]cf_cv_have_lib_'"$1"\"
1199 ifelse($6,,[
1200 if test "$cf_found_library" = no ; then
1201         AC_MSG_ERROR(Cannot link $1 library)
1202 fi
1203 ])
1204 ])dnl
1205 dnl ---------------------------------------------------------------------------
1206 dnl CF_FIND_LINKAGE version: 22 updated: 2020/12/31 20:19:42
1207 dnl ---------------
1208 dnl Find a library (specifically the linkage used in the code fragment),
1209 dnl searching for it if it is not already in the library path.
1210 dnl See also CF_ADD_SEARCHPATH.
1211 dnl
1212 dnl Parameters (4-on are optional):
1213 dnl     $1 = headers for library entrypoint
1214 dnl     $2 = code fragment for library entrypoint
1215 dnl     $3 = the library name without the "-l" option or ".so" suffix.
1216 dnl     $4 = action to perform if successful (default: update CPPFLAGS, etc)
1217 dnl     $5 = action to perform if not successful
1218 dnl     $6 = module name, if not the same as the library name
1219 dnl     $7 = extra libraries
1220 dnl
1221 dnl Sets these variables:
1222 dnl     $cf_cv_find_linkage_$3 - yes/no according to whether linkage is found
1223 dnl     $cf_cv_header_path_$3 - include-directory if needed
1224 dnl     $cf_cv_library_path_$3 - library-directory if needed
1225 dnl     $cf_cv_library_file_$3 - library-file if needed, e.g., -l$3
1226 AC_DEFUN([CF_FIND_LINKAGE],[
1227
1228 # If the linkage is not already in the $CPPFLAGS/$LDFLAGS configuration, these
1229 # will be set on completion of the AC_TRY_LINK below.
1230 cf_cv_header_path_$3=
1231 cf_cv_library_path_$3=
1232
1233 CF_MSG_LOG([Starting [FIND_LINKAGE]($3,$6)])
1234
1235 cf_save_LIBS="$LIBS"
1236
1237 AC_TRY_LINK([$1],[$2],[
1238         cf_cv_find_linkage_$3=yes
1239         cf_cv_header_path_$3=/usr/include
1240         cf_cv_library_path_$3=/usr/lib
1241 ],[
1242
1243 LIBS="-l$3 $7 $cf_save_LIBS"
1244
1245 AC_TRY_LINK([$1],[$2],[
1246         cf_cv_find_linkage_$3=yes
1247         cf_cv_header_path_$3=/usr/include
1248         cf_cv_library_path_$3=/usr/lib
1249         cf_cv_library_file_$3="-l$3"
1250 ],[
1251         cf_cv_find_linkage_$3=no
1252         LIBS="$cf_save_LIBS"
1253
1254         CF_VERBOSE(find linkage for $3 library)
1255         CF_MSG_LOG([Searching for headers in [FIND_LINKAGE]($3,$6)])
1256
1257         cf_save_CPPFLAGS="$CPPFLAGS"
1258         cf_test_CPPFLAGS="$CPPFLAGS"
1259
1260         CF_HEADER_PATH(cf_search,ifelse([$6],,[$3],[$6]))
1261         for cf_cv_header_path_$3 in $cf_search
1262         do
1263                 if test -d "$cf_cv_header_path_$3" ; then
1264                         CF_VERBOSE(... testing $cf_cv_header_path_$3)
1265                         CPPFLAGS="$cf_save_CPPFLAGS"
1266                         CF_APPEND_TEXT(CPPFLAGS,-I$cf_cv_header_path_$3)
1267                         AC_TRY_COMPILE([$1],[$2],[
1268                                 CF_VERBOSE(... found $3 headers in $cf_cv_header_path_$3)
1269                                 cf_cv_find_linkage_$3=maybe
1270                                 cf_test_CPPFLAGS="$CPPFLAGS"
1271                                 break],[
1272                                 CPPFLAGS="$cf_save_CPPFLAGS"
1273                                 ])
1274                 fi
1275         done
1276
1277         if test "$cf_cv_find_linkage_$3" = maybe ; then
1278
1279                 CF_MSG_LOG([Searching for $3 library in [FIND_LINKAGE]($3,$6)])
1280
1281                 cf_save_LIBS="$LIBS"
1282                 cf_save_LDFLAGS="$LDFLAGS"
1283
1284                 ifelse([$6],,,[
1285                 CPPFLAGS="$cf_test_CPPFLAGS"
1286                 LIBS="-l$3 $7 $cf_save_LIBS"
1287                 AC_TRY_LINK([$1],[$2],[
1288                         CF_VERBOSE(... found $3 library in system)
1289                         cf_cv_find_linkage_$3=yes])
1290                         CPPFLAGS="$cf_save_CPPFLAGS"
1291                         LIBS="$cf_save_LIBS"
1292                         ])
1293
1294                 if test "$cf_cv_find_linkage_$3" != yes ; then
1295                         CF_LIBRARY_PATH(cf_search,$3)
1296                         for cf_cv_library_path_$3 in $cf_search
1297                         do
1298                                 if test -d "$cf_cv_library_path_$3" ; then
1299                                         CF_VERBOSE(... testing $cf_cv_library_path_$3)
1300                                         CPPFLAGS="$cf_test_CPPFLAGS"
1301                                         LIBS="-l$3 $7 $cf_save_LIBS"
1302                                         LDFLAGS="$cf_save_LDFLAGS -L$cf_cv_library_path_$3"
1303                                         AC_TRY_LINK([$1],[$2],[
1304                                         CF_VERBOSE(... found $3 library in $cf_cv_library_path_$3)
1305                                         cf_cv_find_linkage_$3=yes
1306                                         cf_cv_library_file_$3="-l$3"
1307                                         break],[
1308                                         CPPFLAGS="$cf_save_CPPFLAGS"
1309                                         LIBS="$cf_save_LIBS"
1310                                         LDFLAGS="$cf_save_LDFLAGS"
1311                                         ])
1312                                 fi
1313                         done
1314                         CPPFLAGS="$cf_save_CPPFLAGS"
1315                         LDFLAGS="$cf_save_LDFLAGS"
1316                 fi
1317
1318         else
1319                 cf_cv_find_linkage_$3=no
1320         fi
1321         ],$7)
1322 ])
1323
1324 LIBS="$cf_save_LIBS"
1325
1326 if test "$cf_cv_find_linkage_$3" = yes ; then
1327 ifelse([$4],,[
1328         CF_ADD_INCDIR($cf_cv_header_path_$3)
1329         CF_ADD_LIBDIR($cf_cv_library_path_$3)
1330         CF_ADD_LIB($3)
1331 ],[$4])
1332 else
1333 ifelse([$5],,AC_MSG_WARN(Cannot find $3 library),[$5])
1334 fi
1335 ])dnl
1336 dnl ---------------------------------------------------------------------------
1337 dnl CF_FIXUP_ADAFLAGS version: 2 updated: 2015/04/17 21:13:04
1338 dnl -----------------
1339 dnl make ADAFLAGS consistent with CFLAGS
1340 AC_DEFUN([CF_FIXUP_ADAFLAGS],[
1341         AC_MSG_CHECKING(optimization options for ADAFLAGS)
1342         case "$CFLAGS" in
1343         (*-g*)
1344                 CF_ADD_ADAFLAGS(-g)
1345                 ;;
1346         esac
1347         case "$CFLAGS" in
1348         (*-O*)
1349                 cf_O_flag=`echo "$CFLAGS" |sed -e 's/^.*-O/-O/' -e 's/[[        ]].*//'`
1350                 CF_ADD_ADAFLAGS($cf_O_flag)
1351                 ;;
1352         esac
1353         AC_MSG_RESULT($ADAFLAGS)
1354 ])dnl
1355 dnl ---------------------------------------------------------------------------
1356 dnl CF_FIX_WARNINGS version: 4 updated: 2021/12/16 18:22:31
1357 dnl ---------------
1358 dnl Warning flags do not belong in CFLAGS, CPPFLAGS, etc.  Any of gcc's
1359 dnl "-Werror" flags can interfere with configure-checks.  Those go into
1360 dnl EXTRA_CFLAGS.
1361 dnl
1362 dnl $1 = variable name to repair
1363 define([CF_FIX_WARNINGS],[
1364 if test "$GCC" = yes || test "$GXX" = yes
1365 then
1366         case [$]$1 in
1367         (*-Werror=*)
1368                 cf_temp_flags=
1369                 for cf_temp_scan in [$]$1
1370                 do
1371                         case "x$cf_temp_scan" in
1372                         (x-Werror=format*)
1373                                 CF_APPEND_TEXT(cf_temp_flags,$cf_temp_scan)
1374                                 ;;
1375                         (x-Werror=*)
1376                                 CF_APPEND_TEXT(EXTRA_CFLAGS,$cf_temp_scan)
1377                                 ;;
1378                         (*)
1379                                 CF_APPEND_TEXT(cf_temp_flags,$cf_temp_scan)
1380                                 ;;
1381                         esac
1382                 done
1383                 if test "x[$]$1" != "x$cf_temp_flags"
1384                 then
1385                         CF_VERBOSE(repairing $1: [$]$1)
1386                         $1="$cf_temp_flags"
1387                         CF_VERBOSE(... fixed [$]$1)
1388                         CF_VERBOSE(... extra $EXTRA_CFLAGS)
1389                 fi
1390                 ;;
1391         esac
1392 fi
1393 AC_SUBST(EXTRA_CFLAGS)
1394 ])dnl
1395 dnl ---------------------------------------------------------------------------
1396 dnl CF_FUNC_GETTIME version: 2 updated: 2023/02/25 08:45:56
1397 dnl ---------------
1398 dnl Check for gettimeofday or clock_gettime.  In 2023, the former is still more
1399 dnl widely supported, but "deprecated" (2008), so we will use the latter if it
1400 dnl is available, to reduce compiler warnings.
1401 AC_DEFUN([CF_FUNC_GETTIME],[
1402 AC_CACHE_CHECK(for clock_gettime,cf_cv_func_clock_gettime,[
1403                 AC_TRY_LINK([#include <time.h>],
1404                 [struct timespec ts;
1405                 int rc = clock_gettime(CLOCK_REALTIME, &ts); (void) rc; (void)ts],
1406                 [cf_cv_func_clock_gettime=yes],
1407                 [cf_cv_func_clock_gettime=no])
1408 ])
1409
1410 if test "$cf_cv_func_clock_gettime" = yes
1411 then
1412         AC_DEFINE(HAVE_CLOCK_GETTIME,1,[Define to 1 if we have clock_gettime function])
1413 else
1414 AC_CHECK_FUNC(gettimeofday,
1415         AC_DEFINE(HAVE_GETTIMEOFDAY,1,[Define to 1 if we have gettimeofday function]),[
1416
1417 AC_CHECK_LIB(bsd, gettimeofday,
1418         AC_DEFINE(HAVE_GETTIMEOFDAY,1,[Define to 1 if we have gettimeofday function])
1419         CF_ADD_LIB(bsd))])dnl CLIX: bzero, select, gettimeofday
1420 fi
1421 ])dnl
1422 dnl ---------------------------------------------------------------------------
1423 dnl CF_GCC_ATTRIBUTES version: 24 updated: 2021/03/20 12:00:25
1424 dnl -----------------
1425 dnl Test for availability of useful gcc __attribute__ directives to quiet
1426 dnl compiler warnings.  Though useful, not all are supported -- and contrary
1427 dnl to documentation, unrecognized directives cause older compilers to barf.
1428 AC_DEFUN([CF_GCC_ATTRIBUTES],
1429 [AC_REQUIRE([AC_PROG_FGREP])dnl
1430 AC_REQUIRE([CF_C11_NORETURN])dnl
1431
1432 if test "$GCC" = yes || test "$GXX" = yes
1433 then
1434 cat > conftest.i <<EOF
1435 #ifndef GCC_PRINTF
1436 #define GCC_PRINTF 0
1437 #endif
1438 #ifndef GCC_SCANF
1439 #define GCC_SCANF 0
1440 #endif
1441 #ifndef GCC_NORETURN
1442 #define GCC_NORETURN /* nothing */
1443 #endif
1444 #ifndef GCC_UNUSED
1445 #define GCC_UNUSED /* nothing */
1446 #endif
1447 EOF
1448 if test "$GCC" = yes
1449 then
1450         AC_CHECKING([for $CC __attribute__ directives])
1451 cat > "conftest.$ac_ext" <<EOF
1452 #line __oline__ "${as_me:-configure}"
1453 #include <stdio.h>
1454 #include "confdefs.h"
1455 #include "conftest.h"
1456 #include "conftest.i"
1457 #if     GCC_PRINTF
1458 #define GCC_PRINTFLIKE(fmt,var) __attribute__((format(printf,fmt,var)))
1459 #else
1460 #define GCC_PRINTFLIKE(fmt,var) /*nothing*/
1461 #endif
1462 #if     GCC_SCANF
1463 #define GCC_SCANFLIKE(fmt,var)  __attribute__((format(scanf,fmt,var)))
1464 #else
1465 #define GCC_SCANFLIKE(fmt,var)  /*nothing*/
1466 #endif
1467 extern void wow(char *,...) GCC_SCANFLIKE(1,2);
1468 extern GCC_NORETURN void oops(char *,...) GCC_PRINTFLIKE(1,2);
1469 extern GCC_NORETURN void foo(void);
1470 int main(int argc GCC_UNUSED, char *argv[[]] GCC_UNUSED) { (void)argc; (void)argv; return 0; }
1471 EOF
1472         cf_printf_attribute=no
1473         cf_scanf_attribute=no
1474         for cf_attribute in scanf printf unused noreturn
1475         do
1476                 CF_UPPER(cf_ATTRIBUTE,$cf_attribute)
1477                 cf_directive="__attribute__(($cf_attribute))"
1478                 echo "checking for $CC $cf_directive" 1>&AC_FD_CC
1479
1480                 case "$cf_attribute" in
1481                 (printf)
1482                         cf_printf_attribute=yes
1483                         cat >conftest.h <<EOF
1484 #define GCC_$cf_ATTRIBUTE 1
1485 EOF
1486                         ;;
1487                 (scanf)
1488                         cf_scanf_attribute=yes
1489                         cat >conftest.h <<EOF
1490 #define GCC_$cf_ATTRIBUTE 1
1491 EOF
1492                         ;;
1493                 (*)
1494                         cat >conftest.h <<EOF
1495 #define GCC_$cf_ATTRIBUTE $cf_directive
1496 EOF
1497                         ;;
1498                 esac
1499
1500                 if AC_TRY_EVAL(ac_compile); then
1501                         test -n "$verbose" && AC_MSG_RESULT(... $cf_attribute)
1502                         cat conftest.h >>confdefs.h
1503                         case "$cf_attribute" in
1504                         (noreturn)
1505                                 AC_DEFINE_UNQUOTED(GCC_NORETURN,$cf_directive,[Define to noreturn-attribute for gcc])
1506                                 ;;
1507                         (printf)
1508                                 cf_value='/* nothing */'
1509                                 if test "$cf_printf_attribute" != no ; then
1510                                         cf_value='__attribute__((format(printf,fmt,var)))'
1511                                         AC_DEFINE(GCC_PRINTF,1,[Define to 1 if the compiler supports gcc-like printf attribute.])
1512                                 fi
1513                                 AC_DEFINE_UNQUOTED(GCC_PRINTFLIKE(fmt,var),$cf_value,[Define to printf-attribute for gcc])
1514                                 ;;
1515                         (scanf)
1516                                 cf_value='/* nothing */'
1517                                 if test "$cf_scanf_attribute" != no ; then
1518                                         cf_value='__attribute__((format(scanf,fmt,var)))'
1519                                         AC_DEFINE(GCC_SCANF,1,[Define to 1 if the compiler supports gcc-like scanf attribute.])
1520                                 fi
1521                                 AC_DEFINE_UNQUOTED(GCC_SCANFLIKE(fmt,var),$cf_value,[Define to sscanf-attribute for gcc])
1522                                 ;;
1523                         (unused)
1524                                 AC_DEFINE_UNQUOTED(GCC_UNUSED,$cf_directive,[Define to unused-attribute for gcc])
1525                                 ;;
1526                         esac
1527                 fi
1528         done
1529 else
1530         ${FGREP-fgrep} define conftest.i >>confdefs.h
1531 fi
1532 rm -rf ./conftest*
1533 fi
1534 ])dnl
1535 dnl ---------------------------------------------------------------------------
1536 dnl CF_GCC_VERSION version: 9 updated: 2023/03/05 14:30:13
1537 dnl --------------
1538 dnl Find version of gcc, and (because icc/clang pretend to be gcc without being
1539 dnl compatible), attempt to determine if icc/clang is actually used.
1540 AC_DEFUN([CF_GCC_VERSION],[
1541 AC_REQUIRE([AC_PROG_CC])
1542 GCC_VERSION=none
1543 if test "$GCC" = yes ; then
1544         AC_MSG_CHECKING(version of $CC)
1545         GCC_VERSION="`${CC} --version 2>/dev/null | sed -e '2,$d' -e 's/^[[^(]]*([[^)]][[^)]]*) //' -e 's/^[[^0-9.]]*//' -e 's/[[^0-9.]].*//'`"
1546         test -z "$GCC_VERSION" && GCC_VERSION=unknown
1547         AC_MSG_RESULT($GCC_VERSION)
1548 fi
1549 CF_INTEL_COMPILER(GCC,INTEL_COMPILER,CFLAGS)
1550 CF_CLANG_COMPILER(GCC,CLANG_COMPILER,CFLAGS)
1551 ])dnl
1552 dnl ---------------------------------------------------------------------------
1553 dnl CF_GCC_WARNINGS version: 41 updated: 2021/01/01 16:53:59
1554 dnl ---------------
1555 dnl Check if the compiler supports useful warning options.  There's a few that
1556 dnl we don't use, simply because they're too noisy:
1557 dnl
1558 dnl     -Wconversion (useful in older versions of gcc, but not in gcc 2.7.x)
1559 dnl     -Winline (usually not worthwhile)
1560 dnl     -Wredundant-decls (system headers make this too noisy)
1561 dnl     -Wtraditional (combines too many unrelated messages, only a few useful)
1562 dnl     -Wwrite-strings (too noisy, but should review occasionally).  This
1563 dnl             is enabled for ncurses using "--enable-const".
1564 dnl     -pedantic
1565 dnl
1566 dnl Parameter:
1567 dnl     $1 is an optional list of gcc warning flags that a particular
1568 dnl             application might want to use, e.g., "no-unused" for
1569 dnl             -Wno-unused
1570 dnl Special:
1571 dnl     If $with_ext_const is "yes", add a check for -Wwrite-strings
1572 dnl
1573 AC_DEFUN([CF_GCC_WARNINGS],
1574 [
1575 AC_REQUIRE([CF_GCC_VERSION])
1576 if test "x$have_x" = xyes; then CF_CONST_X_STRING fi
1577 cat > "conftest.$ac_ext" <<EOF
1578 #line __oline__ "${as_me:-configure}"
1579 int main(int argc, char *argv[[]]) { return (argv[[argc-1]] == 0) ; }
1580 EOF
1581 if test "$INTEL_COMPILER" = yes
1582 then
1583 # The "-wdXXX" options suppress warnings:
1584 # remark #1419: external declaration in primary source file
1585 # remark #1683: explicit conversion of a 64-bit integral type to a smaller integral type (potential portability problem)
1586 # remark #1684: conversion from pointer to same-sized integral type (potential portability problem)
1587 # remark #193: zero used for undefined preprocessing identifier
1588 # remark #593: variable "curs_sb_left_arrow" was set but never used
1589 # remark #810: conversion from "int" to "Dimension={unsigned short}" may lose significant bits
1590 # remark #869: parameter "tw" was never referenced
1591 # remark #981: operands are evaluated in unspecified order
1592 # warning #279: controlling expression is constant
1593
1594         AC_CHECKING([for $CC warning options])
1595         cf_save_CFLAGS="$CFLAGS"
1596         EXTRA_CFLAGS="$EXTRA_CFLAGS -Wall"
1597         for cf_opt in \
1598                 wd1419 \
1599                 wd1683 \
1600                 wd1684 \
1601                 wd193 \
1602                 wd593 \
1603                 wd279 \
1604                 wd810 \
1605                 wd869 \
1606                 wd981
1607         do
1608                 CFLAGS="$cf_save_CFLAGS $EXTRA_CFLAGS -$cf_opt"
1609                 if AC_TRY_EVAL(ac_compile); then
1610                         test -n "$verbose" && AC_MSG_RESULT(... -$cf_opt)
1611                         EXTRA_CFLAGS="$EXTRA_CFLAGS -$cf_opt"
1612                 fi
1613         done
1614         CFLAGS="$cf_save_CFLAGS"
1615 elif test "$GCC" = yes && test "$GCC_VERSION" != "unknown"
1616 then
1617         AC_CHECKING([for $CC warning options])
1618         cf_save_CFLAGS="$CFLAGS"
1619         cf_warn_CONST=""
1620         test "$with_ext_const" = yes && cf_warn_CONST="Wwrite-strings"
1621         cf_gcc_warnings="Wignored-qualifiers Wlogical-op Wvarargs"
1622         test "x$CLANG_COMPILER" = xyes && cf_gcc_warnings=
1623         for cf_opt in W Wall \
1624                 Wbad-function-cast \
1625                 Wcast-align \
1626                 Wcast-qual \
1627                 Wdeclaration-after-statement \
1628                 Wextra \
1629                 Winline \
1630                 Wmissing-declarations \
1631                 Wmissing-prototypes \
1632                 Wnested-externs \
1633                 Wpointer-arith \
1634                 Wshadow \
1635                 Wstrict-prototypes \
1636                 Wundef Wno-inline $cf_gcc_warnings $cf_warn_CONST $1
1637         do
1638                 CFLAGS="$cf_save_CFLAGS $EXTRA_CFLAGS -$cf_opt"
1639                 if AC_TRY_EVAL(ac_compile); then
1640                         test -n "$verbose" && AC_MSG_RESULT(... -$cf_opt)
1641                         case "$cf_opt" in
1642                         (Winline)
1643                                 case "$GCC_VERSION" in
1644                                 ([[34]].*)
1645                                         CF_VERBOSE(feature is broken in gcc $GCC_VERSION)
1646                                         continue;;
1647                                 esac
1648                                 ;;
1649                         (Wpointer-arith)
1650                                 case "$GCC_VERSION" in
1651                                 ([[12]].*)
1652                                         CF_VERBOSE(feature is broken in gcc $GCC_VERSION)
1653                                         continue;;
1654                                 esac
1655                                 ;;
1656                         esac
1657                         EXTRA_CFLAGS="$EXTRA_CFLAGS -$cf_opt"
1658                 fi
1659         done
1660         CFLAGS="$cf_save_CFLAGS"
1661 fi
1662 rm -rf ./conftest*
1663
1664 AC_SUBST(EXTRA_CFLAGS)
1665 ])dnl
1666 dnl ---------------------------------------------------------------------------
1667 dnl CF_GNATPREP_OPT_T version: 1 updated: 2014/08/02 18:37:25
1668 dnl -----------------
1669 AC_DEFUN([CF_GNATPREP_OPT_T],[
1670 AC_CACHE_CHECK(if GNATPREP supports -T option,cf_cv_gnatprep_opt_t,[
1671 cf_cv_gnatprep_opt_t=no
1672 gnatprep -T 2>/dev/null >/dev/null && cf_cv_gnatprep_opt_t=yes
1673 ])
1674 test "$cf_cv_gnatprep_opt_t" = yes && GNATPREP_OPTS="-T $GNATPREP_OPTS"
1675 AC_SUBST(GNATPREP_OPTS)
1676 ])dnl
1677 dnl ---------------------------------------------------------------------------
1678 dnl CF_GNAT_GENERICS version: 7 updated: 2021/01/01 13:31:04
1679 dnl ----------------
1680 AC_DEFUN([CF_GNAT_GENERICS],
1681 [
1682 AC_REQUIRE([CF_GNAT_VERSION])
1683
1684 AC_MSG_CHECKING(if GNAT supports generics)
1685 case "$cf_cv_gnat_version" in
1686 (3.1[[1-9]]*|3.[[2-9]]*|[[4-9]].*|[[1-9]][[0-9]].[[0-9]]*|20[[0-9]][[0-9]])
1687         cf_gnat_generics=yes
1688         ;;
1689 (*)
1690         cf_gnat_generics=no
1691         ;;
1692 esac
1693 AC_MSG_RESULT($cf_gnat_generics)
1694
1695 if test "$cf_gnat_generics" = yes
1696 then
1697         cf_compile_generics=generics
1698         cf_generic_objects="\${GENOBJS}"
1699 else
1700         cf_compile_generics=
1701         cf_generic_objects=
1702 fi
1703
1704 AC_SUBST(cf_compile_generics)
1705 AC_SUBST(cf_generic_objects)
1706 ])dnl
1707 dnl ---------------------------------------------------------------------------
1708 dnl CF_GNAT_PROJECTS version: 13 updated: 2021/01/02 17:09:14
1709 dnl ----------------
1710 dnl GNAT projects are configured with ".gpr" project files.
1711 dnl GNAT libraries are a further development, using the project feature.
1712 AC_DEFUN([CF_GNAT_PROJECTS],
1713 [
1714 AC_REQUIRE([CF_GNAT_VERSION])
1715 AC_REQUIRE([CF_DISABLE_GNAT_PROJECTS])
1716
1717 cf_gnat_libraries=no
1718 cf_gnat_projects=no
1719
1720 if test "$enable_gnat_projects" != no ; then
1721 AC_MSG_CHECKING(if GNAT supports project files)
1722 case "$cf_cv_gnat_version" in
1723 (3.[[0-9]]*)
1724         ;;
1725 (*)
1726         case "$cf_cv_system_name" in
1727         (cygwin*|msys*)
1728                 ;;
1729         (*)
1730                 rm -rf ./conftest* ./*~conftest*
1731                 if mkdir conftest.src conftest.bin conftest.lib
1732                 then
1733                         cd conftest.src
1734                         rm -rf ./conftest* ./*~conftest*
1735                         cat >>library.gpr <<CF_EOF
1736 project Library is
1737   Kind := External ("LIB_KIND");
1738   for Library_Name use "ConfTest";
1739   for Object_Dir use ".";
1740   for Library_ALI_Dir use External("LIBRARY_DIR");
1741   for Library_Version use External ("SONAME");
1742   for Library_Kind use Kind;
1743   for Library_Dir use External("BUILD_DIR");
1744   Source_Dir := External ("SOURCE_DIR");
1745   for Source_Dirs use (Source_Dir);
1746 end Library;
1747 CF_EOF
1748                         cat >>confpackage.ads <<CF_EOF
1749 package ConfPackage is
1750    procedure conftest;
1751 end ConfPackage;
1752 CF_EOF
1753                         cat >>confpackage.adb <<CF_EOF
1754 with Text_IO;
1755 package body ConfPackage is
1756    procedure conftest is
1757    begin
1758       Text_IO.Put ("Hello World");
1759       Text_IO.New_Line;
1760    end conftest;
1761 end ConfPackage;
1762 CF_EOF
1763                         if ( "$cf_ada_make" $ADAFLAGS \
1764                                         -Plibrary.gpr \
1765                                         -XBUILD_DIR="`cd ../conftest.bin;pwd`" \
1766                                         -XLIBRARY_DIR="`cd ../conftest.lib;pwd`" \
1767                                         -XSOURCE_DIR="`pwd`" \
1768                                         -XSONAME=libConfTest.so.1 \
1769                                         -XLIB_KIND=static 1>&AC_FD_CC 2>&1 ) ; then
1770                                 cf_gnat_projects=yes
1771                         fi
1772                         cd ..
1773                 fi
1774                 if test -f conftest.lib/confpackage.ali
1775                 then
1776                         cf_gnat_libraries=yes
1777                 fi
1778                 rm -rf ./conftest* ./*~conftest*
1779                 ;;
1780         esac
1781         ;;
1782 esac
1783 AC_MSG_RESULT($cf_gnat_projects)
1784 fi # enable_gnat_projects
1785
1786 if test "$cf_gnat_projects" = yes
1787 then
1788         AC_MSG_CHECKING(if GNAT supports libraries)
1789         AC_MSG_RESULT($cf_gnat_libraries)
1790 fi
1791
1792 USE_OLD_MAKERULES=""
1793 USE_GNAT_PROJECTS="#"
1794 USE_GNAT_MAKE_GPR="#"
1795 USE_GNAT_GPRBUILD="#"
1796
1797 if test "$cf_gnat_projects" = yes
1798 then
1799         USE_OLD_MAKERULES="#"
1800         USE_GNAT_PROJECTS=""
1801         if test "$cf_cv_VERSION_GPRBUILD" != no
1802         then
1803                 USE_GNAT_GPRBUILD=""
1804         elif test "$cf_cv_VERSION_GNATMAKE" != no
1805         then
1806                 USE_GNAT_MAKE_GPR=""
1807         else
1808                 AC_MSG_WARN(use old makefile rules since tools are missing)
1809         fi
1810 fi
1811
1812 if test "$cf_gnat_libraries" = yes
1813 then
1814         USE_GNAT_LIBRARIES=""
1815 else
1816         USE_GNAT_LIBRARIES="#"
1817 fi
1818
1819 AC_SUBST(USE_OLD_MAKERULES)
1820 AC_SUBST(USE_GNAT_PROJECTS)
1821 AC_SUBST(USE_GNAT_LIBRARIES)
1822 AC_SUBST(USE_GNAT_MAKE_GPR)
1823 AC_SUBST(USE_GNAT_GPRBUILD)
1824 ])dnl
1825 dnl ---------------------------------------------------------------------------
1826 dnl CF_GNAT_SIGINT version: 2 updated: 2021/01/01 13:31:04
1827 dnl --------------
1828 dnl Check if gnat supports SIGINT, and presumably tasking.  For the latter, it
1829 dnl is noted that gnat may compile a tasking unit even for configurations which
1830 dnl fail at runtime.
1831 AC_DEFUN([CF_GNAT_SIGINT],[
1832 AC_CACHE_CHECK(if GNAT supports SIGINT,cf_cv_gnat_sigint,[
1833 CF_GNAT_TRY_LINK([with Ada.Interrupts.Names;
1834
1835 package ConfTest is
1836
1837    pragma Warnings (Off);  --  the next pragma exists since 3.11p
1838    pragma Unreserve_All_Interrupts;
1839    pragma Warnings (On);
1840
1841    protected Process is
1842       procedure Stop;
1843       function Continue return Boolean;
1844       pragma Attach_Handler (Stop, Ada.Interrupts.Names.SIGINT);
1845    private
1846       Done : Boolean := False;
1847    end Process;
1848
1849 end ConfTest;],
1850 [package body ConfTest is
1851    protected body Process is
1852       procedure Stop is
1853       begin
1854          Done := True;
1855       end Stop;
1856       function Continue return Boolean is
1857       begin
1858          return not Done;
1859       end Continue;
1860    end Process;
1861 end ConfTest;],
1862         [cf_cv_gnat_sigint=yes],
1863         [cf_cv_gnat_sigint=no])])
1864
1865 if test "$cf_cv_gnat_sigint" = yes ; then
1866         USE_GNAT_SIGINT=""
1867 else
1868         USE_GNAT_SIGINT="#"
1869 fi
1870 AC_SUBST(USE_GNAT_SIGINT)
1871 ])dnl
1872 dnl ---------------------------------------------------------------------------
1873 dnl CF_GNAT_TRY_LINK version: 4 updated: 2021/01/01 13:31:04
1874 dnl ----------------
1875 dnl Verify that a test program compiles/links with GNAT.
1876 dnl $cf_ada_make is set to the program that compiles/links
1877 dnl $ADAFLAGS may be set to the GNAT flags.
1878 dnl
1879 dnl $1 is the text of the spec
1880 dnl $2 is the text of the body
1881 dnl $3 is the shell command to execute if successful
1882 dnl $4 is the shell command to execute if not successful
1883 AC_DEFUN([CF_GNAT_TRY_LINK],
1884 [
1885 rm -rf ./conftest* ./*~conftest*
1886 cat >>conftest.ads <<CF_EOF
1887 $1
1888 CF_EOF
1889 cat >>conftest.adb <<CF_EOF
1890 $2
1891 CF_EOF
1892 if ( "$cf_ada_make" $ADAFLAGS conftest 1>&AC_FD_CC 2>&1 ) ; then
1893 ifelse($3,,      :,[      $3])
1894 ifelse($4,,,[else
1895    $4])
1896 fi
1897 rm -rf ./conftest* ./*~conftest*
1898 ])dnl
1899 dnl ---------------------------------------------------------------------------
1900 dnl CF_GNAT_TRY_RUN version: 6 updated: 2021/01/01 13:31:04
1901 dnl ---------------
1902 dnl Verify that a test program compiles and runs with GNAT
1903 dnl $cf_ada_make is set to the program that compiles/links
1904 dnl $ADAFLAGS may be set to the GNAT flags.
1905 dnl
1906 dnl $1 is the text of the spec
1907 dnl $2 is the text of the body
1908 dnl $3 is the shell command to execute if successful
1909 dnl $4 is the shell command to execute if not successful
1910 AC_DEFUN([CF_GNAT_TRY_RUN],
1911 [
1912 rm -rf ./conftest* ./*~conftest*
1913 cat >>conftest.ads <<CF_EOF
1914 $1
1915 CF_EOF
1916 cat >>conftest.adb <<CF_EOF
1917 $2
1918 CF_EOF
1919 if ( "$cf_ada_make" $ADAFLAGS conftest 1>&AC_FD_CC 2>&1 ) ; then
1920    if ( ./conftest 1>&AC_FD_CC 2>&1 ) ; then
1921 ifelse($3,,      :,[      $3])
1922 ifelse($4,,,[   else
1923       $4])
1924    fi
1925 ifelse($4,,,[else
1926    $4])
1927 fi
1928 rm -rf ./conftest* ./*~conftest*
1929 ])dnl
1930 dnl ---------------------------------------------------------------------------
1931 dnl CF_GNAT_VERSION version: 22 updated: 2019/12/31 08:53:54
1932 dnl ---------------
1933 dnl $1 = cache variable to update
1934 dnl $2 = program name
1935 dnl Verify version of GNAT or related tool
1936 AC_DEFUN([CF_GNAT_VERSION],
1937 [
1938 AC_CACHE_CHECK(for ifelse($2,,gnat,$2) version, cf_cv_gnat_version,[
1939 cf_cv_gnat_version=`ifelse($2,,${cf_ada_make:-gnatmake},$2) --version 2>&1 | \
1940         grep '[[0-9]].[[0-9]][[0-9]]*' |\
1941         sed -e '2,$d' -e 's/[[^0-9 \.]]//g' -e 's/^[[ ]]*//' -e 's/ .*//'`
1942 ])
1943 test -z "$cf_cv_gnat_version" && cf_cv_gnat_version=no
1944 ifelse($1,,,[eval $1=$cf_cv_gnat_version; unset cf_cv_gnat_version])
1945 ])dnl
1946 dnl ---------------------------------------------------------------------------
1947 dnl CF_GNU_SOURCE version: 10 updated: 2018/12/10 20:09:41
1948 dnl -------------
1949 dnl Check if we must define _GNU_SOURCE to get a reasonable value for
1950 dnl _XOPEN_SOURCE, upon which many POSIX definitions depend.  This is a defect
1951 dnl (or misfeature) of glibc2, which breaks portability of many applications,
1952 dnl since it is interwoven with GNU extensions.
1953 dnl
1954 dnl Well, yes we could work around it...
1955 dnl
1956 dnl Parameters:
1957 dnl     $1 is the nominal value for _XOPEN_SOURCE
1958 AC_DEFUN([CF_GNU_SOURCE],
1959 [
1960 cf_gnu_xopen_source=ifelse($1,,500,$1)
1961
1962 AC_CACHE_CHECK(if this is the GNU C library,cf_cv_gnu_library,[
1963 AC_TRY_COMPILE([#include <sys/types.h>],[
1964         #if __GLIBC__ > 0 && __GLIBC_MINOR__ >= 0
1965                 return 0;
1966         #elif __NEWLIB__ > 0 && __NEWLIB_MINOR__ >= 0
1967                 return 0;
1968         #else
1969         #       error not GNU C library
1970         #endif],
1971         [cf_cv_gnu_library=yes],
1972         [cf_cv_gnu_library=no])
1973 ])
1974
1975 if test x$cf_cv_gnu_library = xyes; then
1976
1977         # With glibc 2.19 (13 years after this check was begun), _DEFAULT_SOURCE
1978         # was changed to help a little.  newlib incorporated the change about 4
1979         # years later.
1980         AC_CACHE_CHECK(if _DEFAULT_SOURCE can be used as a basis,cf_cv_gnu_library_219,[
1981                 cf_save="$CPPFLAGS"
1982                 CF_APPEND_TEXT(CPPFLAGS,-D_DEFAULT_SOURCE)
1983                 AC_TRY_COMPILE([#include <sys/types.h>],[
1984                         #if (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 19) || (__GLIBC__ > 2)
1985                                 return 0;
1986                         #elif (__NEWLIB__ == 2 && __NEWLIB_MINOR__ >= 4) || (__GLIBC__ > 3)
1987                                 return 0;
1988                         #else
1989                         #       error GNU C library __GLIBC__.__GLIBC_MINOR__ is too old
1990                         #endif],
1991                         [cf_cv_gnu_library_219=yes],
1992                         [cf_cv_gnu_library_219=no])
1993                 CPPFLAGS="$cf_save"
1994         ])
1995
1996         if test "x$cf_cv_gnu_library_219" = xyes; then
1997                 cf_save="$CPPFLAGS"
1998                 AC_CACHE_CHECK(if _XOPEN_SOURCE=$cf_gnu_xopen_source works with _DEFAULT_SOURCE,cf_cv_gnu_dftsrc_219,[
1999                         CF_ADD_CFLAGS(-D_DEFAULT_SOURCE -D_XOPEN_SOURCE=$cf_gnu_xopen_source)
2000                         AC_TRY_COMPILE([
2001                                 #include <limits.h>
2002                                 #include <sys/types.h>
2003                                 ],[
2004                                 #if (_XOPEN_SOURCE >= $cf_gnu_xopen_source) && (MB_LEN_MAX > 1)
2005                                         return 0;
2006                                 #else
2007                                 #       error GNU C library is too old
2008                                 #endif],
2009                                 [cf_cv_gnu_dftsrc_219=yes],
2010                                 [cf_cv_gnu_dftsrc_219=no])
2011                         ])
2012                 test "x$cf_cv_gnu_dftsrc_219" = "xyes" || CPPFLAGS="$cf_save"
2013         else
2014                 cf_cv_gnu_dftsrc_219=maybe
2015         fi
2016
2017         if test "x$cf_cv_gnu_dftsrc_219" != xyes; then
2018
2019                 AC_CACHE_CHECK(if we must define _GNU_SOURCE,cf_cv_gnu_source,[
2020                 AC_TRY_COMPILE([#include <sys/types.h>],[
2021                         #ifndef _XOPEN_SOURCE
2022                         #error  expected _XOPEN_SOURCE to be defined
2023                         #endif],
2024                         [cf_cv_gnu_source=no],
2025                         [cf_save="$CPPFLAGS"
2026                          CF_ADD_CFLAGS(-D_GNU_SOURCE)
2027                          AC_TRY_COMPILE([#include <sys/types.h>],[
2028                                 #ifdef _XOPEN_SOURCE
2029                                 #error  expected _XOPEN_SOURCE to be undefined
2030                                 #endif],
2031                                 [cf_cv_gnu_source=no],
2032                                 [cf_cv_gnu_source=yes])
2033                         CPPFLAGS="$cf_save"
2034                         ])
2035                 ])
2036
2037                 if test "$cf_cv_gnu_source" = yes
2038                 then
2039                 AC_CACHE_CHECK(if we should also define _DEFAULT_SOURCE,cf_cv_default_source,[
2040                         CF_APPEND_TEXT(CPPFLAGS,-D_GNU_SOURCE)
2041                         AC_TRY_COMPILE([#include <sys/types.h>],[
2042                                 #ifdef _DEFAULT_SOURCE
2043                                 #error  expected _DEFAULT_SOURCE to be undefined
2044                                 #endif],
2045                                 [cf_cv_default_source=no],
2046                                 [cf_cv_default_source=yes])
2047                         ])
2048                         if test "$cf_cv_default_source" = yes
2049                         then
2050                                 CF_APPEND_TEXT(CPPFLAGS,-D_DEFAULT_SOURCE)
2051                         fi
2052                 fi
2053         fi
2054
2055 fi
2056 ])dnl
2057 dnl ---------------------------------------------------------------------------
2058 dnl CF_HEADER_PATH version: 15 updated: 2021/01/01 13:31:04
2059 dnl --------------
2060 dnl Construct a search-list of directories for a nonstandard header-file
2061 dnl
2062 dnl Parameters
2063 dnl     $1 = the variable to return as result
2064 dnl     $2 = the package name
2065 AC_DEFUN([CF_HEADER_PATH],
2066 [
2067 $1=
2068
2069 # collect the current set of include-directories from compiler flags
2070 cf_header_path_list=""
2071 if test -n "${CFLAGS}${CPPFLAGS}" ; then
2072         for cf_header_path in $CPPFLAGS $CFLAGS
2073         do
2074                 case "$cf_header_path" in
2075                 (-I*)
2076                         cf_header_path=`echo ".$cf_header_path" |sed -e 's/^...//' -e 's,/include$,,'`
2077                         CF_ADD_SUBDIR_PATH($1,$2,include,$cf_header_path,NONE)
2078                         cf_header_path_list="$cf_header_path_list [$]$1"
2079                         ;;
2080                 esac
2081         done
2082 fi
2083
2084 # add the variations for the package we are looking for
2085 CF_SUBDIR_PATH($1,$2,include)
2086
2087 test "$includedir" != NONE && \
2088 test "$includedir" != "/usr/include" && \
2089 test -d "$includedir" && {
2090         test -d "$includedir" &&    $1="[$]$1 $includedir"
2091         test -d "$includedir/$2" && $1="[$]$1 $includedir/$2"
2092 }
2093
2094 test "$oldincludedir" != NONE && \
2095 test "$oldincludedir" != "/usr/include" && \
2096 test -d "$oldincludedir" && {
2097         test -d "$oldincludedir"    && $1="[$]$1 $oldincludedir"
2098         test -d "$oldincludedir/$2" && $1="[$]$1 $oldincludedir/$2"
2099 }
2100
2101 $1="[$]$1 $cf_header_path_list"
2102 ])dnl
2103 dnl ---------------------------------------------------------------------------
2104 dnl CF_HELP_MESSAGE version: 4 updated: 2019/12/31 08:53:54
2105 dnl ---------------
2106 dnl Insert text into the help-message, for readability, from AC_ARG_WITH.
2107 AC_DEFUN([CF_HELP_MESSAGE],
2108 [CF_ACVERSION_CHECK(2.53,[],[
2109 AC_DIVERT_HELP($1)])dnl
2110 ])dnl
2111 dnl ---------------------------------------------------------------------------
2112 dnl CF_INCLUDE_DIRS version: 10 updated: 2014/09/19 20:58:42
2113 dnl ---------------
2114 dnl Construct the list of include-options according to whether we're building
2115 dnl in the source directory or using '--srcdir=DIR' option.
2116 AC_DEFUN([CF_INCLUDE_DIRS],
2117 [
2118 if test "$srcdir" != "."; then
2119         CPPFLAGS="-I\${srcdir}/../include $CPPFLAGS"
2120 fi
2121 CPPFLAGS="-I../include $CPPFLAGS"
2122 if test "$srcdir" != "."; then
2123         CPPFLAGS="-I\${srcdir} $CPPFLAGS"
2124 fi
2125 CPPFLAGS="-I. $CPPFLAGS"
2126 AC_SUBST(CPPFLAGS)
2127 ])dnl
2128 dnl ---------------------------------------------------------------------------
2129 dnl CF_INSTALL_OPTS version: 3 updated: 2023/06/03 15:17:30
2130 dnl ---------------
2131 dnl prompt for/fill-in useful install-program options
2132 AC_DEFUN([CF_INSTALL_OPTS],
2133 [
2134 CF_INSTALL_OPT_S
2135 CF_INSTALL_OPT_P
2136 CF_INSTALL_OPT_O
2137 CF_INSTALL_OPT_STRIP_PROG
2138 ])dnl
2139 dnl ---------------------------------------------------------------------------
2140 dnl CF_INSTALL_OPT_O version: 3 updated: 2020/12/31 20:19:42
2141 dnl ----------------
2142 dnl Almost all "install" programs default to the current user's ownership.
2143 dnl Almost - MINIX is an exception.
2144 AC_DEFUN([CF_INSTALL_OPT_O],
2145 [
2146 AC_MSG_CHECKING(if install needs to be told about ownership)
2147 case `$ac_config_guess` in
2148 (*minix)
2149         with_install_o=yes
2150         ;;
2151 (*)
2152         with_install_o=no
2153         ;;
2154 esac
2155
2156 AC_MSG_RESULT($with_install_o)
2157 if test "x$with_install_o" = xyes
2158 then
2159         INSTALL_OPT_O="`id root|sed -e 's/uid=[[0-9]]*(/ -o /' -e 's/gid=[[0-9]]*(/ -g /' -e 's/ [[^=[:space:]]][[^=[:space:]]]*=.*/ /' -e 's/)//g'`"
2160 else
2161         INSTALL_OPT_O=
2162 fi
2163
2164 AC_SUBST(INSTALL_OPT_O)
2165 ])dnl
2166 dnl ---------------------------------------------------------------------------
2167 dnl CF_INSTALL_OPT_P version: 3 updated: 2021/01/01 13:31:04
2168 dnl ----------------
2169 dnl Some install-programs accept a "-p" option to preserve file modification
2170 dnl timestamps.  That can be useful as an install option, as well as a way to
2171 dnl avoid the need for ranlib after copying a static archive.
2172 AC_DEFUN([CF_INSTALL_OPT_P],
2173 [
2174 : "${INSTALL:=install}"
2175 AC_CACHE_CHECK(if install accepts -p option, cf_cv_install_p,[
2176         rm -rf ./conftest*
2177         date >conftest.in
2178         mkdir conftest.out
2179         sleep 3
2180         if $INSTALL -p conftest.in conftest.out 2>/dev/null
2181         then
2182                 if test -f conftest.out/conftest.in
2183                 then
2184                         test conftest.in -nt conftest.out/conftest.in 2>conftest.err && \
2185                         test conftest.out/conftest.in -nt conftest.in 2>conftest.err
2186                         if test -s conftest.err
2187                         then
2188                                 cf_cv_install_p=no
2189                         else
2190                                 cf_cv_install_p=yes
2191                         fi
2192                 else
2193                         cf_cv_install_p=no
2194                 fi
2195         else
2196                 cf_cv_install_p=no
2197         fi
2198         rm -rf ./conftest*
2199 ])
2200 ])dnl
2201 dnl ---------------------------------------------------------------------------
2202 dnl CF_INSTALL_OPT_S version: 3 updated: 2021/01/05 19:23:48
2203 dnl ----------------
2204 dnl By default, we should strip executables which are installed, but leave the
2205 dnl ability to suppress that for unit-testing.
2206 AC_DEFUN([CF_INSTALL_OPT_S],
2207 [
2208 AC_MSG_CHECKING(if you want to install stripped executables)
2209 CF_ARG_DISABLE(stripping,
2210         [  --disable-stripping     do not strip (debug info) installed executables],
2211         [enable_stripping=no],
2212         [enable_stripping=yes])
2213 AC_MSG_RESULT($enable_stripping)
2214
2215 if test "$enable_stripping" = yes
2216 then
2217         INSTALL_OPT_S="-s"
2218 else
2219         INSTALL_OPT_S=
2220 fi
2221 AC_SUBST(INSTALL_OPT_S)
2222 ])dnl
2223 dnl ---------------------------------------------------------------------------
2224 dnl CF_INSTALL_OPT_STRIP_PROG version: 1 updated: 2023/06/03 15:17:30
2225 dnl -------------------------
2226 dnl Provide an option for overriding the strip program used in install "-s"
2227 dnl
2228 dnl coreutils install provides a --strip-program option
2229 dnl FreeBSD uses STRIPBIN environment variable, while NetBSD and OpenBSD use
2230 dnl STRIP environment variable.  Other versions of install do not support this.
2231 AC_DEFUN([CF_INSTALL_OPT_STRIP_PROG],
2232 [
2233 AC_REQUIRE([CF_INSTALL_OPT_S])
2234 if test -n "$INSTALL_OPT_S"
2235 then
2236         AC_MSG_CHECKING(if you want to specify strip-program)
2237         AC_ARG_WITH(strip-program,
2238                 [  --with-strip-program=XX specify program to use when stripping in install],
2239                 [with_strip_program=$withval],
2240                 [with_strip_program=no])
2241         AC_MSG_RESULT($with_strip_program)
2242         if test "$with_strip_program" != no
2243         then
2244                 AC_MSG_CHECKING(if strip-program is supported with this installer)
2245                 cf_install_program=`echo "$INSTALL" | sed -e 's%[[ ]]*[[ ]]-.%%'`
2246                 check_install_strip=no
2247                 if test -f "$cf_install_program"
2248                 then
2249                         check_install_version=`"$cf_install_program" --version 2>/dev/null | head -n 1 | grep coreutils`
2250                         if test -n "$check_install_version"
2251                         then
2252                                 check_install_strip="option"
2253                         else
2254                                 for check_strip_variable in STRIPBIN STRIP
2255                                 do
2256                                         if strings "$cf_install_program" | grep "^$check_strip_variable[$]" >/dev/null
2257                                         then
2258                                                 check_install_strip="environ"
2259                                                 break
2260                                         fi
2261                                 done
2262                         fi
2263                 fi
2264                 AC_MSG_RESULT($check_install_strip)
2265                 case "$check_install_strip" in
2266                 (no)
2267                         AC_MSG_WARN($cf_install_program does not support strip program option)
2268                         with_strip_program=no
2269                         ;;
2270                 (environ)
2271                         cat >install.tmp <<-CF_EOF
2272                         #! $SHELL
2273                         STRIPBIN="$with_strip_program" \\
2274                         STRIP="$with_strip_program" \\
2275                         $INSTALL "[$]@"
2276                         CF_EOF
2277                         INSTALL="`pwd`/install.tmp"
2278                         chmod +x "$INSTALL"
2279                         CF_VERBOSE(created $INSTALL)
2280                         ;;
2281                 (option)
2282                         INSTALL_OPT_S="$INSTALL_OPT_S --strip-program=\"$with_strip_program\""
2283                         ;;
2284                 esac
2285         fi
2286 fi
2287 AC_SUBST(INSTALL_OPT_S)
2288 ])dnl
2289 dnl ---------------------------------------------------------------------------
2290 dnl CF_INTEL_COMPILER version: 9 updated: 2023/02/18 17:41:25
2291 dnl -----------------
2292 dnl Check if the given compiler is really the Intel compiler for Linux.  It
2293 dnl tries to imitate gcc, but does not return an error when it finds a mismatch
2294 dnl between prototypes, e.g., as exercised by CF_MISSING_CHECK.
2295 dnl
2296 dnl This macro should be run "soon" after AC_PROG_CC or AC_PROG_CPLUSPLUS, to
2297 dnl ensure that it is not mistaken for gcc/g++.  It is normally invoked from
2298 dnl the wrappers for gcc and g++ warnings.
2299 dnl
2300 dnl $1 = GCC (default) or GXX
2301 dnl $2 = INTEL_COMPILER (default) or INTEL_CPLUSPLUS
2302 dnl $3 = CFLAGS (default) or CXXFLAGS
2303 AC_DEFUN([CF_INTEL_COMPILER],[
2304 AC_REQUIRE([AC_CANONICAL_HOST])
2305 ifelse([$2],,INTEL_COMPILER,[$2])=no
2306
2307 if test "$ifelse([$1],,[$1],GCC)" = yes ; then
2308         case "$host_os" in
2309         (linux*|gnu*)
2310                 AC_MSG_CHECKING(if this is really Intel ifelse([$1],GXX,C++,C) compiler)
2311                 cf_save_CFLAGS="$ifelse([$3],,CFLAGS,[$3])"
2312                 ifelse([$3],,CFLAGS,[$3])="$ifelse([$3],,CFLAGS,[$3]) -no-gcc"
2313                 AC_TRY_COMPILE([],[
2314 #ifdef __INTEL_COMPILER
2315 #else
2316 #error __INTEL_COMPILER is not defined
2317 #endif
2318 ],[ifelse([$2],,INTEL_COMPILER,[$2])=yes
2319 cf_save_CFLAGS="$cf_save_CFLAGS -we147"
2320 ],[])
2321                 ifelse([$3],,CFLAGS,[$3])="$cf_save_CFLAGS"
2322                 AC_MSG_RESULT($ifelse([$2],,INTEL_COMPILER,[$2]))
2323                 ;;
2324         esac
2325 fi
2326 ])dnl
2327 dnl ---------------------------------------------------------------------------
2328 dnl CF_LARGEFILE version: 12 updated: 2020/03/19 20:23:48
2329 dnl ------------
2330 dnl Add checks for large file support.
2331 AC_DEFUN([CF_LARGEFILE],[
2332 ifdef([AC_FUNC_FSEEKO],[
2333         AC_SYS_LARGEFILE
2334         if test "$enable_largefile" != no ; then
2335         AC_FUNC_FSEEKO
2336
2337         # Normally we would collect these definitions in the config.h,
2338         # but (like _XOPEN_SOURCE), some environments rely on having these
2339         # defined before any of the system headers are included.  Another
2340         # case comes up with C++, e.g., on AIX the compiler compiles the
2341         # header files by themselves before looking at the body files it is
2342         # told to compile.  For ncurses, those header files do not include
2343         # the config.h
2344         if test "$ac_cv_sys_large_files" != no
2345         then
2346                 CF_APPEND_TEXT(CPPFLAGS,-D_LARGE_FILES)
2347         fi
2348         if test "$ac_cv_sys_largefile_source" != no
2349         then
2350                 CF_APPEND_TEXT(CPPFLAGS,-D_LARGEFILE_SOURCE)
2351         fi
2352         if test "$ac_cv_sys_file_offset_bits" != no
2353         then
2354                 CF_APPEND_TEXT(CPPFLAGS,-D_FILE_OFFSET_BITS=$ac_cv_sys_file_offset_bits)
2355         fi
2356
2357         AC_CACHE_CHECK(whether to use struct dirent64, cf_cv_struct_dirent64,[
2358                 AC_TRY_COMPILE([
2359 #pragma GCC diagnostic error "-Wincompatible-pointer-types"
2360 #include <sys/types.h>
2361 #include <dirent.h>
2362                 ],[
2363                 /* if transitional largefile support is setup, this is true */
2364                 extern struct dirent64 * readdir(DIR *);
2365                 struct dirent64 *x = readdir((DIR *)0);
2366                 struct dirent *y = readdir((DIR *)0);
2367                 int z = x - y;
2368                 (void)z;
2369                 ],
2370                 [cf_cv_struct_dirent64=yes],
2371                 [cf_cv_struct_dirent64=no])
2372         ])
2373         test "$cf_cv_struct_dirent64" = yes && AC_DEFINE(HAVE_STRUCT_DIRENT64,1,[Define to 1 if we have struct dirent64])
2374         fi
2375 ])
2376 ])
2377 dnl ---------------------------------------------------------------------------
2378 dnl CF_LD_RPATH_OPT version: 9 updated: 2021/01/01 13:31:04
2379 dnl ---------------
2380 dnl For the given system and compiler, find the compiler flags to pass to the
2381 dnl loader to use the "rpath" feature.
2382 AC_DEFUN([CF_LD_RPATH_OPT],
2383 [
2384 AC_REQUIRE([CF_CHECK_CACHE])
2385
2386 LD_RPATH_OPT=
2387 if test "x$cf_cv_enable_rpath" != xno
2388 then
2389         AC_MSG_CHECKING(for an rpath option)
2390         case "$cf_cv_system_name" in
2391         (irix*)
2392                 if test "$GCC" = yes; then
2393                         LD_RPATH_OPT="-Wl,-rpath,"
2394                 else
2395                         LD_RPATH_OPT="-rpath "
2396                 fi
2397                 ;;
2398         (linux*|gnu*|k*bsd*-gnu|freebsd*)
2399                 LD_RPATH_OPT="-Wl,-rpath,"
2400                 ;;
2401         (openbsd[[2-9]].*|mirbsd*)
2402                 LD_RPATH_OPT="-Wl,-rpath,"
2403                 ;;
2404         (dragonfly*)
2405                 LD_RPATH_OPT="-rpath "
2406                 ;;
2407         (netbsd*)
2408                 LD_RPATH_OPT="-Wl,-rpath,"
2409                 ;;
2410         (osf*|mls+*)
2411                 LD_RPATH_OPT="-rpath "
2412                 ;;
2413         (solaris2*)
2414                 LD_RPATH_OPT="-R"
2415                 ;;
2416         (*)
2417                 ;;
2418         esac
2419         AC_MSG_RESULT($LD_RPATH_OPT)
2420
2421         case "x$LD_RPATH_OPT" in
2422         (x-R*)
2423                 AC_MSG_CHECKING(if we need a space after rpath option)
2424                 cf_save_LIBS="$LIBS"
2425                 CF_ADD_LIBS(${LD_RPATH_OPT}$libdir)
2426                 AC_TRY_LINK(, , cf_rpath_space=no, cf_rpath_space=yes)
2427                 LIBS="$cf_save_LIBS"
2428                 AC_MSG_RESULT($cf_rpath_space)
2429                 test "$cf_rpath_space" = yes && LD_RPATH_OPT="$LD_RPATH_OPT "
2430                 ;;
2431         esac
2432 fi
2433 ])dnl
2434 dnl ---------------------------------------------------------------------------
2435 dnl CF_LIBRARY_PATH version: 11 updated: 2021/01/01 13:31:04
2436 dnl ---------------
2437 dnl Construct a search-list of directories for a nonstandard library-file
2438 dnl
2439 dnl Parameters
2440 dnl     $1 = the variable to return as result
2441 dnl     $2 = the package name
2442 AC_DEFUN([CF_LIBRARY_PATH],
2443 [
2444 $1=
2445 cf_library_path_list=""
2446 if test -n "${LDFLAGS}${LIBS}" ; then
2447         for cf_library_path in $LDFLAGS $LIBS
2448         do
2449                 case "$cf_library_path" in
2450                 (-L*)
2451                         cf_library_path=`echo ".$cf_library_path" |sed -e 's/^...//' -e 's,/lib$,,'`
2452                         CF_ADD_SUBDIR_PATH($1,$2,lib,$cf_library_path,NONE)
2453                         cf_library_path_list="$cf_library_path_list [$]$1"
2454                         ;;
2455                 esac
2456         done
2457 fi
2458
2459 CF_SUBDIR_PATH($1,$2,lib)
2460
2461 $1="$cf_library_path_list [$]$1"
2462 ])dnl
2463 dnl ---------------------------------------------------------------------------
2464 dnl CF_LIB_PREFIX version: 14 updated: 2021/01/01 13:31:04
2465 dnl -------------
2466 dnl Compute the library-prefix for the given host system
2467 dnl $1 = variable to set
2468 define([CF_LIB_PREFIX],
2469 [
2470         case "$cf_cv_system_name" in
2471         (OS/2*|os2*)
2472                 if test "$DFT_LWR_MODEL" = libtool; then
2473                         LIB_PREFIX='lib'
2474                 else
2475                         LIB_PREFIX=''
2476                 fi
2477                 ;;
2478         (*-msvc*)
2479                 LIB_PREFIX=''
2480                 ;;
2481         (*)     LIB_PREFIX='lib'
2482                 ;;
2483         esac
2484 ifelse($1,,,[$1=$LIB_PREFIX])
2485         AC_SUBST(LIB_PREFIX)
2486 ])dnl
2487 dnl ---------------------------------------------------------------------------
2488 dnl CF_LIB_SUFFIX version: 28 updated: 2021/01/01 16:53:59
2489 dnl -------------
2490 dnl Compute the library file-suffix from the given model name
2491 dnl $1 = model name
2492 dnl $2 = variable to set (the nominal library suffix)
2493 dnl $3 = dependency variable to set (actual filename)
2494 dnl The variable $LIB_SUFFIX, if set, prepends the variable to set.
2495 AC_DEFUN([CF_LIB_SUFFIX],
2496 [
2497         case X$1 in
2498         (Xlibtool)
2499                 $2='.la'
2500                 $3=[$]$2
2501                 ;;
2502         (Xdebug)
2503                 case "$cf_cv_system_name" in
2504                 (*-msvc*)
2505                         $2='_g.lib'
2506                         ;;
2507                 (*)
2508                         $2='_g.a'
2509                         ;;
2510                 esac
2511                 $3=[$]$2
2512                 ;;
2513         (Xprofile)
2514                 case "$cf_cv_system_name" in
2515                 (*-msvc*)
2516                         $2='_p.lib'
2517                         ;;
2518                 (*)
2519                         $2='_p.a'
2520                         ;;
2521                 esac
2522                 $3=[$]$2
2523                 ;;
2524         (Xshared)
2525                 case "$cf_cv_system_name" in
2526                 (aix[[5-7]]*)
2527                         $2='.so'
2528                         $3=[$]$2
2529                         ;;
2530                 (*-msvc*)
2531                         $2='.dll'
2532                         $3='.dll.lib'
2533                         ;;
2534                 (cygwin*|msys*|mingw*)
2535                         $2='.dll'
2536                         $3='.dll.a'
2537                         ;;
2538                 (darwin*)
2539                         $2='.dylib'
2540                         $3=[$]$2
2541                         ;;
2542                 (hpux*)
2543                         case "$target" in
2544                         (ia64*)
2545                                 $2='.so'
2546                                 $3=[$]$2
2547                                 ;;
2548                         (*)
2549                                 $2='.sl'
2550                                 $3=[$]$2
2551                                 ;;
2552                         esac
2553                         ;;
2554                 (*)
2555                         $2='.so'
2556                         $3=[$]$2
2557                         ;;
2558                 esac
2559                 ;;
2560         (*)
2561                 case "$target" in
2562                 (*-msvc*)
2563                         $2='.lib'
2564                         ;;
2565                 (*)
2566                         $2='.a'
2567                         ;;
2568                 esac
2569                 $3=[$]$2
2570                 ;;
2571         esac
2572         if test -n "${LIB_SUFFIX}${EXTRA_SUFFIX}"
2573         then
2574                 $2="${LIB_SUFFIX}${EXTRA_SUFFIX}[$]{$2}"
2575                 $3="${LIB_SUFFIX}${EXTRA_SUFFIX}[$]{$3}"
2576         fi
2577 ])dnl
2578 dnl ---------------------------------------------------------------------------
2579 dnl CF_LIB_TYPE version: 5 updated: 2015/04/17 21:13:04
2580 dnl -----------
2581 dnl Compute the string to append to -library from the given model name
2582 dnl $1 = model name
2583 dnl $2 = variable to set
2584 dnl The variable $LIB_SUFFIX, if set, prepends the variable to set.
2585 AC_DEFUN([CF_LIB_TYPE],
2586 [
2587         case $1 in
2588         (libtool) $2=''   ;;
2589         (normal)  $2=''   ;;
2590         (debug)   $2='_g' ;;
2591         (profile) $2='_p' ;;
2592         (shared)  $2=''   ;;
2593         esac
2594         test -n "$LIB_SUFFIX" && $2="${LIB_SUFFIX}[$]{$2}"
2595 ])dnl
2596 dnl ---------------------------------------------------------------------------
2597 dnl CF_LINK_DATAONLY version: 13 updated: 2020/02/08 15:59:30
2598 dnl ----------------
2599 dnl Some systems have a non-ANSI linker that doesn't pull in modules that have
2600 dnl only data (i.e., no functions), for example NeXT.  On those systems we'll
2601 dnl have to provide wrappers for global tables to ensure they're linked
2602 dnl properly.
2603 AC_DEFUN([CF_LINK_DATAONLY],
2604 [
2605 AC_MSG_CHECKING([if data-only library module links])
2606 AC_CACHE_VAL(cf_cv_link_dataonly,[
2607         rm -f conftest.a
2608         cat >conftest.$ac_ext <<EOF
2609 #line __oline__ "configure"
2610 int     testdata[[3]] = { 123, 456, 789 };
2611 EOF
2612         if AC_TRY_EVAL(ac_compile) ; then
2613                 mv conftest.o data.o && \
2614                 ( $AR $ARFLAGS conftest.a data.o ) 2>&AC_FD_CC 1>/dev/null
2615         fi
2616         rm -f conftest.$ac_ext data.o
2617         cat >conftest.$ac_ext <<EOF
2618 #line __oline__ "configure"
2619 int     testfunc(void)
2620 {
2621 #if defined(NeXT)
2622         ${cf_cv_main_return:-return}(1);        /* I'm told this linker is broken */
2623 #else
2624         extern int testdata[[3]];
2625         return testdata[[0]] == 123
2626            &&  testdata[[1]] == 456
2627            &&  testdata[[2]] == 789;
2628 #endif
2629 }
2630 EOF
2631         if AC_TRY_EVAL(ac_compile); then
2632                 mv conftest.o func.o && \
2633                 ( $AR $ARFLAGS conftest.a func.o ) 2>&AC_FD_CC 1>/dev/null
2634         fi
2635         rm -f conftest.$ac_ext func.o
2636         ( eval $RANLIB conftest.a ) 2>&AC_FD_CC >/dev/null
2637         cf_saveLIBS="$LIBS"
2638         LIBS="conftest.a $LIBS"
2639         AC_TRY_RUN([
2640         int main(void)
2641         {
2642                 extern int testfunc();
2643                 ${cf_cv_main_return:-return} (!testfunc());
2644         }
2645         ],
2646         [cf_cv_link_dataonly=yes],
2647         [cf_cv_link_dataonly=no],
2648         [cf_cv_link_dataonly=unknown])
2649         LIBS="$cf_saveLIBS"
2650         ])
2651 AC_MSG_RESULT($cf_cv_link_dataonly)
2652
2653 if test "$cf_cv_link_dataonly" = no ; then
2654         AC_DEFINE(BROKEN_LINKER,1,[if data-only library module does not link])
2655         BROKEN_LINKER=1
2656 fi
2657 AC_SUBST(BROKEN_LINKER)
2658
2659 ])dnl
2660 dnl ---------------------------------------------------------------------------
2661 dnl CF_MAKEFLAGS version: 21 updated: 2021/09/04 06:47:34
2662 dnl ------------
2663 dnl Some 'make' programs support ${MAKEFLAGS}, some ${MFLAGS}, to pass 'make'
2664 dnl options to lower-levels.  It is very useful for "make -n" -- if we have it.
2665 dnl (GNU 'make' does both, something POSIX 'make', which happens to make the
2666 dnl ${MAKEFLAGS} variable incompatible because it adds the assignments :-)
2667 AC_DEFUN([CF_MAKEFLAGS],
2668 [AC_REQUIRE([AC_PROG_FGREP])dnl
2669
2670 AC_CACHE_CHECK(for makeflags variable, cf_cv_makeflags,[
2671         cf_cv_makeflags=''
2672         for cf_option in '-${MAKEFLAGS}' '${MFLAGS}'
2673         do
2674                 cat >cf_makeflags.tmp <<CF_EOF
2675 SHELL = $SHELL
2676 all :
2677         @ echo '.$cf_option'
2678 CF_EOF
2679                 cf_result=`${MAKE:-make} -k -f cf_makeflags.tmp 2>/dev/null | ${FGREP-fgrep} -v "ing directory" | sed -e 's,[[  ]]*$,,'`
2680                 case "$cf_result" in
2681                 (.*k|.*kw)
2682                         cf_result="`${MAKE:-make} -k -f cf_makeflags.tmp CC=cc 2>/dev/null`"
2683                         case "$cf_result" in
2684                         (.*CC=*)        cf_cv_makeflags=
2685                                 ;;
2686                         (*)     cf_cv_makeflags=$cf_option
2687                                 ;;
2688                         esac
2689                         break
2690                         ;;
2691                 (.-)
2692                         ;;
2693                 (*)
2694                         CF_MSG_LOG(given option \"$cf_option\", no match \"$cf_result\")
2695                         ;;
2696                 esac
2697         done
2698         rm -f cf_makeflags.tmp
2699 ])
2700
2701 AC_SUBST(cf_cv_makeflags)
2702 ])dnl
2703 dnl ---------------------------------------------------------------------------
2704 dnl CF_MAKE_PHONY version: 3 updated: 2021/01/08 16:08:21
2705 dnl -------------
2706 dnl Check if the make-program handles a ".PHONY" target, e.g,. a target which
2707 dnl acts as a placeholder.
2708 dnl
2709 dnl The ".PHONY" feature was proposed in 2011 here
2710 dnl     https://www.austingroupbugs.net/view.php?id=523
2711 dnl and is scheduled for release in P1003.1 Issue 8 (late 2022).
2712 dnl
2713 dnl This is not supported by SVr4 make (or SunOS 4, 4.3SD, etc), but works with
2714 dnl a few others (i.e., GNU make and the non-POSIX "BSD" make):
2715 dnl
2716 dnl + This is a GNU make feature (since April 1988, but in turn from binutils,
2717 dnl   date unspecified).
2718 dnl
2719 dnl + It was adopted in NetBSD make in June 1995.
2720 dnl
2721 dnl + The other BSD make programs are derived from the NetBSD make (and for
2722 dnl   that reason are not actually different "implementations").
2723 dnl
2724 dnl + Some features of NetBSD make were actually adapted from pmake, which
2725 dnl   began as a modified GNU make starting in 1993.
2726 dnl
2727 dnl + Version 3.8 of the dmake program in January 1992 also implemented this
2728 dnl   GNU make extension, but is less well known than the BSD make.
2729 AC_DEFUN([CF_MAKE_PHONY],[
2730 AC_CACHE_CHECK(for \".PHONY\" make-support, cf_cv_make_PHONY,[
2731         rm -rf conftest*
2732         (
2733                 mkdir conftest || exit 1
2734                 cd conftest
2735                 cat >makefile <<'CF_EOF'
2736 .PHONY: always
2737 DATA=0
2738 always: always.out
2739         @echo "** making [$]@ [$](DATA)"
2740 once: once.out
2741         @echo "** making [$]@ [$](DATA)"
2742 always.out:
2743         @echo "** making [$]@ [$](DATA)"
2744         echo [$](DATA) > [$]@
2745 once.out:
2746         @echo "** making [$]@ [$](DATA)"
2747         echo [$](DATA) > [$]@
2748 CF_EOF
2749                 for cf_data in 1 2 3
2750                 do
2751                         ${MAKE:-make} always DATA=$cf_data
2752                         ${MAKE:-make} once   DATA=$cf_data
2753                         ${MAKE:-make} -t always once
2754                         if test -f always ; then
2755                                 echo "no (case 1)" > ../conftest.tmp
2756                         elif test ! -f always.out ; then
2757                                 echo "no (case 2)" > ../conftest.tmp
2758                         elif test ! -f once.out ; then
2759                                 echo "no (case 3)" > ../conftest.tmp
2760                         elif ! cmp -s always.out once.out ; then
2761                                 echo "no (case 4)" > ../conftest.tmp
2762                                 diff always.out once.out
2763                         else
2764                                 cf_check="`cat always.out`"
2765                                 if test "x$cf_check" != "x$cf_data" ; then
2766                                         echo "no (case 5)" > ../conftest.tmp
2767                                 else
2768                                         echo yes > ../conftest.tmp
2769                                         rm -f ./*.out
2770                                         continue
2771                                 fi
2772                         fi
2773                         break
2774                 done
2775         ) >&AC_FD_CC 2>&1
2776         cf_cv_make_PHONY="`cat conftest.tmp`"
2777         rm -rf conftest*
2778 ])
2779 MAKE_NO_PHONY="#"
2780 MAKE_PHONY="#"
2781 test "x$cf_cv_make_PHONY" = xyes && MAKE_PHONY=
2782 test "x$cf_cv_make_PHONY" != xyes && MAKE_NO_PHONY=
2783 AC_SUBST(MAKE_NO_PHONY)
2784 AC_SUBST(MAKE_PHONY)
2785 ])dnl
2786 dnl ---------------------------------------------------------------------------
2787 dnl CF_MAKE_TAGS version: 6 updated: 2010/10/23 15:52:32
2788 dnl ------------
2789 dnl Generate tags/TAGS targets for makefiles.  Do not generate TAGS if we have
2790 dnl a monocase filesystem.
2791 AC_DEFUN([CF_MAKE_TAGS],[
2792 AC_REQUIRE([CF_MIXEDCASE_FILENAMES])
2793
2794 AC_CHECK_PROGS(CTAGS, exctags ctags)
2795 AC_CHECK_PROGS(ETAGS, exetags etags)
2796
2797 AC_CHECK_PROG(MAKE_LOWER_TAGS, ${CTAGS:-ctags}, yes, no)
2798
2799 if test "$cf_cv_mixedcase" = yes ; then
2800         AC_CHECK_PROG(MAKE_UPPER_TAGS, ${ETAGS:-etags}, yes, no)
2801 else
2802         MAKE_UPPER_TAGS=no
2803 fi
2804
2805 if test "$MAKE_UPPER_TAGS" = yes ; then
2806         MAKE_UPPER_TAGS=
2807 else
2808         MAKE_UPPER_TAGS="#"
2809 fi
2810
2811 if test "$MAKE_LOWER_TAGS" = yes ; then
2812         MAKE_LOWER_TAGS=
2813 else
2814         MAKE_LOWER_TAGS="#"
2815 fi
2816
2817 AC_SUBST(CTAGS)
2818 AC_SUBST(ETAGS)
2819
2820 AC_SUBST(MAKE_UPPER_TAGS)
2821 AC_SUBST(MAKE_LOWER_TAGS)
2822 ])dnl
2823 dnl ---------------------------------------------------------------------------
2824 dnl CF_MIXEDCASE_FILENAMES version: 9 updated: 2021/01/01 16:53:59
2825 dnl ----------------------
2826 dnl Check if the file-system supports mixed-case filenames.  If we're able to
2827 dnl create a lowercase name and see it as uppercase, it doesn't support that.
2828 AC_DEFUN([CF_MIXEDCASE_FILENAMES],
2829 [
2830 AC_CACHE_CHECK(if filesystem supports mixed-case filenames,cf_cv_mixedcase,[
2831 if test "$cross_compiling" = yes ; then
2832         case "$target_alias" in
2833         (*-os2-emx*|*-msdosdjgpp*|*-cygwin*|*-msys*|*-mingw*|*-uwin*|darwin*)
2834                 cf_cv_mixedcase=no
2835                 ;;
2836         (*)
2837                 cf_cv_mixedcase=yes
2838                 ;;
2839         esac
2840 else
2841         rm -f conftest CONFTEST
2842         echo test >conftest
2843         if test -f CONFTEST ; then
2844                 cf_cv_mixedcase=no
2845         else
2846                 cf_cv_mixedcase=yes
2847         fi
2848         rm -f conftest CONFTEST
2849 fi
2850 ])
2851 test "$cf_cv_mixedcase" = yes && AC_DEFINE(MIXEDCASE_FILENAMES,1,[Define to 1 if filesystem supports mixed-case filenames.])
2852 ])dnl
2853 dnl ---------------------------------------------------------------------------
2854 dnl CF_MKSTEMP version: 12 updated: 2023/01/05 17:53:11
2855 dnl ----------
2856 dnl Check for a working mkstemp.  This creates two files, checks that they are
2857 dnl successfully created and distinct (AmigaOS apparently fails on the last).
2858 AC_DEFUN([CF_MKSTEMP],[
2859 AC_CHECK_HEADERS( \
2860 unistd.h \
2861 )
2862 AC_CACHE_CHECK(for working mkstemp, cf_cv_func_mkstemp,[
2863 rm -rf ./conftest*
2864 AC_TRY_RUN([
2865 $ac_includes_default
2866
2867 int main(void)
2868 {
2869         char *tmpl = "conftestXXXXXX";
2870         char name[2][80];
2871         int n;
2872         int result = 0;
2873         int fd;
2874         struct stat sb;
2875
2876         umask(077);
2877         for (n = 0; n < 2; ++n) {
2878                 strcpy(name[n], tmpl);
2879                 if ((fd = mkstemp(name[n])) >= 0) {
2880                         if (!strcmp(name[n], tmpl)
2881                          || stat(name[n], &sb) != 0
2882                          || (sb.st_mode & S_IFMT) != S_IFREG
2883                          || (sb.st_mode & 077) != 0) {
2884                                 result = 1;
2885                         }
2886                         close(fd);
2887                 }
2888         }
2889         if (result == 0
2890          && !strcmp(name[0], name[1]))
2891                 result = 1;
2892         ${cf_cv_main_return:-return}(result);
2893 }
2894 ],[cf_cv_func_mkstemp=yes
2895 ],[cf_cv_func_mkstemp=no
2896 ],[cf_cv_func_mkstemp=maybe])
2897 ])
2898 if test "x$cf_cv_func_mkstemp" = xmaybe ; then
2899         AC_CHECK_FUNC(mkstemp)
2900 fi
2901 if test "x$cf_cv_func_mkstemp" = xyes || test "x$ac_cv_func_mkstemp" = xyes ; then
2902         AC_DEFINE(HAVE_MKSTEMP,1,[Define to 1 if mkstemp() is available and working.])
2903 fi
2904 ])dnl
2905 dnl ---------------------------------------------------------------------------
2906 dnl CF_MSG_LOG version: 5 updated: 2010/10/23 15:52:32
2907 dnl ----------
2908 dnl Write a debug message to config.log, along with the line number in the
2909 dnl configure script.
2910 AC_DEFUN([CF_MSG_LOG],[
2911 echo "${as_me:-configure}:__oline__: testing $* ..." 1>&AC_FD_CC
2912 ])dnl
2913 dnl ---------------------------------------------------------------------------
2914 dnl CF_NCURSES_ADDON version: 6 updated: 2021/01/04 19:33:05
2915 dnl ----------------
2916 dnl Configure an ncurses add-on, built outside the ncurses tree.
2917 AC_DEFUN([CF_NCURSES_ADDON],[
2918 AC_REQUIRE([CF_NCURSES_CONFIG])
2919
2920 AC_PROVIDE([CF_SUBST_NCURSES_VERSION])
2921
2922 AC_MSG_CHECKING(if you want wide-character code)
2923 AC_ARG_ENABLE(widec,
2924         [  --enable-widec          compile with wide-char/UTF-8 code],
2925         [with_widec=$enableval],
2926         [with_widec=no])
2927 AC_MSG_RESULT($with_widec)
2928 if test "$with_widec" = yes ; then
2929         CF_UTF8_LIB
2930         CF_NCURSES_CONFIG(ncursesw)
2931 else
2932         CF_NCURSES_CONFIG(ncurses)
2933 fi
2934
2935 if test "$NCURSES_CONFIG_PKG" != none ; then
2936         cf_version=`$PKG_CONFIG --modversion $NCURSES_CONFIG_PKG 2>/dev/null`
2937
2938         NCURSES_MAJOR=`echo "$cf_version" | sed -e 's/\..*//'`
2939         NCURSES_MINOR=`echo "$cf_version" | sed -e 's/^[[0-9]][[0-9]]*\.//' -e 's/\..*//'`
2940         NCURSES_PATCH=`echo "$cf_version" | sed -e 's/^[[0-9]][[0-9]]*\.[[0-9]][[0-9]]*\.//'`
2941
2942         cf_cv_abi_version=`$PKG_CONFIG --variable=abi_version $NCURSES_CONFIG_PKG 2>/dev/null`
2943         if test -z "$cf_cv_abi_version"
2944         then
2945                 cf_cv_abi_version=`$PKG_CONFIG --variable=major_version $NCURSES_CONFIG_PKG 2>/dev/null`
2946         fi
2947
2948 elif test "$NCURSES_CONFIG" != none ; then
2949
2950         cf_version=`$NCURSES_CONFIG --version 2>/dev/null`
2951
2952         NCURSES_MAJOR=`echo "$cf_version" | sed -e 's/\..*//'`
2953         NCURSES_MINOR=`echo "$cf_version" | sed -e 's/^[[0-9]][[0-9]]*\.//' -e 's/\..*//'`
2954         NCURSES_PATCH=`echo "$cf_version" | sed -e 's/^[[0-9]][[0-9]]*\.[[0-9]][[0-9]]*\.//'`
2955
2956         # ABI version is not available from headers
2957         cf_cv_abi_version=`$NCURSES_CONFIG --abi-version 2>/dev/null`
2958
2959 else
2960
2961         for cf_name in MAJOR MINOR PATCH
2962         do
2963         cat >conftest.$ac_ext <<CF_EOF
2964         #include <${cf_cv_ncurses_header:-curses.h}>
2965         AUTOCONF_$cf_name NCURSES_VERSION_$cf_name
2966 CF_EOF
2967                 cf_try="$ac_cpp conftest.$ac_ext 2>&5 | fgrep AUTOCONF_$cf_name >conftest.out"
2968                 AC_TRY_EVAL(cf_try)
2969                 if test -f conftest.out ; then
2970                         cf_result=`sed -e "s/^.*AUTOCONF_${cf_name}[[   ]][[    ]]*//" conftest.out`
2971                         eval NCURSES_$cf_name=\"$cf_result\"
2972                         # cat conftest.$ac_ext
2973                         # cat conftest.out
2974                 fi
2975         done
2976
2977         cf_cv_abi_version=${NCURSES_MAJOR}
2978
2979 fi
2980
2981 cf_cv_rel_version=${NCURSES_MAJOR}.${NCURSES_MINOR}
2982
2983 dnl Show the computed version, for logging
2984 cf_cv_timestamp=`date`
2985
2986 AC_MSG_RESULT(Configuring NCURSES $cf_cv_rel_version ABI $cf_cv_abi_version ($cf_cv_timestamp))
2987
2988 dnl We need these values in the generated headers
2989 AC_SUBST(NCURSES_MAJOR)
2990 AC_SUBST(NCURSES_MINOR)
2991 AC_SUBST(NCURSES_PATCH)
2992
2993 dnl We need these values in the generated makefiles
2994 AC_SUBST(cf_cv_rel_version)
2995 AC_SUBST(cf_cv_abi_version)
2996
2997 dnl FIXME - not needed for Ada95
2998 AC_SUBST(cf_cv_builtin_bool)
2999 AC_SUBST(cf_cv_header_stdbool_h)
3000 AC_SUBST(cf_cv_type_of_bool)dnl
3001
3002 ])
3003 dnl ---------------------------------------------------------------------------
3004 dnl CF_NCURSES_CC_CHECK version: 6 updated: 2023/02/18 17:47:58
3005 dnl -------------------
3006 dnl Check if we can compile with ncurses' header file
3007 dnl $1 is the cache variable to set
3008 dnl $2 is the header-file to include
3009 dnl $3 is the root name (ncurses or ncursesw)
3010 AC_DEFUN([CF_NCURSES_CC_CHECK],[
3011         AC_TRY_COMPILE([
3012 ]ifelse($3,ncursesw,[
3013 #define _XOPEN_SOURCE_EXTENDED
3014 #undef  HAVE_LIBUTF8_H  /* in case we used CF_UTF8_LIB */
3015 #define HAVE_LIBUTF8_H  /* to force ncurses' header file to use cchar_t */
3016 ])[
3017 #include <$2>],[
3018 #ifdef NCURSES_VERSION
3019 ]ifelse($3,ncursesw,[
3020 #ifndef WACS_BSSB
3021         #error WACS_BSSB is not defined
3022 #endif
3023 ])[
3024 printf("%s\\n", NCURSES_VERSION);
3025 #else
3026 #ifdef __NCURSES_H
3027 printf("old\\n");
3028 #else
3029         #error __NCURSES_H is not defined
3030 #endif
3031 #endif
3032         ]
3033         ,[$1=$2]
3034         ,[$1=no])
3035 ])dnl
3036 dnl ---------------------------------------------------------------------------
3037 dnl CF_NCURSES_CONFIG version: 28 updated: 2021/08/28 15:20:37
3038 dnl -----------------
3039 dnl Tie together the configure-script macros for ncurses, preferring these in
3040 dnl order:
3041 dnl a) ".pc" files for pkg-config, using $NCURSES_CONFIG_PKG
3042 dnl b) the "-config" script from ncurses, using $NCURSES_CONFIG
3043 dnl c) just plain libraries
3044 dnl
3045 dnl $1 is the root library name (default: "ncurses")
3046 AC_DEFUN([CF_NCURSES_CONFIG],[
3047 AC_REQUIRE([CF_PKG_CONFIG])
3048 cf_ncuconfig_root=ifelse($1,,ncurses,$1)
3049 cf_have_ncuconfig=no
3050
3051 if test "x${PKG_CONFIG:=none}" != xnone; then
3052         AC_MSG_CHECKING(pkg-config for $cf_ncuconfig_root)
3053         if "$PKG_CONFIG" --exists $cf_ncuconfig_root ; then
3054                 AC_MSG_RESULT(yes)
3055
3056                 AC_MSG_CHECKING(if the $cf_ncuconfig_root package files work)
3057                 cf_have_ncuconfig=unknown
3058
3059                 cf_save_CFLAGS="$CFLAGS"
3060                 cf_save_CPPFLAGS="$CPPFLAGS"
3061                 cf_save_LIBS="$LIBS"
3062
3063                 cf_pkg_cflags="`$PKG_CONFIG --cflags $cf_ncuconfig_root`"
3064                 cf_pkg_libs="`$PKG_CONFIG --libs $cf_ncuconfig_root`"
3065
3066                 # while -W for passing linker flags is prevalent, it is not "standard".
3067                 # At least one wrapper for c89/c99 (in Apple's xcode) has its own
3068                 # incompatible _and_ non-standard -W option which gives an error.  Work
3069                 # around that pitfall.
3070                 case "x${CC}@@${cf_pkg_libs}@${cf_pkg_cflags}" in
3071                 (x*c[[89]]9@@*-W*)
3072                         CF_ADD_CFLAGS($cf_pkg_cflags)
3073                         CF_ADD_LIBS($cf_pkg_libs)
3074
3075                         AC_TRY_LINK([#include <${cf_cv_ncurses_header:-curses.h}>],
3076                                 [initscr(); mousemask(0,0); tigetstr((char *)0);],
3077                                 [AC_TRY_RUN([#include <${cf_cv_ncurses_header:-curses.h}>
3078                                         int main(void)
3079                                         { const char *xx = curses_version(); return (xx == 0); }],
3080                                         [cf_test_ncuconfig=yes],
3081                                         [cf_test_ncuconfig=no],
3082                                         [cf_test_ncuconfig=maybe])],
3083                                 [cf_test_ncuconfig=no])
3084
3085                         CFLAGS="$cf_save_CFLAGS"
3086                         CPPFLAGS="$cf_save_CPPFLAGS"
3087                         LIBS="$cf_save_LIBS"
3088
3089                         if test "x$cf_test_ncuconfig" != xyes; then
3090                                 cf_temp=`echo "x$cf_pkg_cflags" | sed -e s/^x// -e 's/-W[[^     ]]*//g'`
3091                                 cf_pkg_cflags="$cf_temp"
3092                                 cf_temp=`echo "x$cf_pkg_libs" | sed -e s/^x// -e 's/-W[[^       ]]*//g'`
3093                                 cf_pkg_libs="$cf_temp"
3094                         fi
3095                         ;;
3096                 esac
3097
3098                 CF_APPEND_CFLAGS($cf_pkg_cflags)
3099                 CF_ADD_LIBS($cf_pkg_libs)
3100
3101                 AC_TRY_LINK([#include <${cf_cv_ncurses_header:-curses.h}>],
3102                         [initscr(); mousemask(0,0); tigetstr((char *)0);],
3103                         [AC_TRY_RUN([#include <${cf_cv_ncurses_header:-curses.h}>
3104                                 int main(void)
3105                                 { const char *xx = curses_version(); return (xx == 0); }],
3106                                 [cf_have_ncuconfig=yes],
3107                                 [cf_have_ncuconfig=no],
3108                                 [cf_have_ncuconfig=maybe])],
3109                         [cf_have_ncuconfig=no])
3110                 AC_MSG_RESULT($cf_have_ncuconfig)
3111                 test "$cf_have_ncuconfig" = maybe && cf_have_ncuconfig=yes
3112                 if test "$cf_have_ncuconfig" != "yes"
3113                 then
3114                         CPPFLAGS="$cf_save_CPPFLAGS"
3115                         LIBS="$cf_save_LIBS"
3116                         NCURSES_CONFIG_PKG=none
3117                 else
3118                         AC_DEFINE(NCURSES,1,[Define to 1 if we are using ncurses headers/libraries])
3119                         NCURSES_CONFIG_PKG=$cf_ncuconfig_root
3120                         CF_TERM_HEADER
3121                 fi
3122
3123         else
3124                 AC_MSG_RESULT(no)
3125                 NCURSES_CONFIG_PKG=none
3126         fi
3127 else
3128         NCURSES_CONFIG_PKG=none
3129 fi
3130
3131 if test "x$cf_have_ncuconfig" = "xno"; then
3132         cf_ncurses_config="${cf_ncuconfig_root}${NCURSES_CONFIG_SUFFIX}-config"; echo "Looking for ${cf_ncurses_config}"
3133
3134         CF_ACVERSION_CHECK(2.52,
3135                 [AC_CHECK_TOOLS(NCURSES_CONFIG, ${cf_ncurses_config} ${cf_ncuconfig_root}6-config ${cf_ncuconfig_root}6-config ${cf_ncuconfig_root}5-config, none)],
3136                 [AC_PATH_PROGS(NCURSES_CONFIG,  ${cf_ncurses_config} ${cf_ncuconfig_root}6-config ${cf_ncuconfig_root}6-config ${cf_ncuconfig_root}5-config, none)])
3137
3138         if test "$NCURSES_CONFIG" != none ; then
3139
3140                 CF_APPEND_CFLAGS(`$NCURSES_CONFIG --cflags`)
3141                 CF_ADD_LIBS(`$NCURSES_CONFIG --libs`)
3142
3143                 # even with config script, some packages use no-override for curses.h
3144                 CF_CURSES_HEADER(ifelse($1,,ncurses,$1))
3145
3146                 dnl like CF_NCURSES_CPPFLAGS
3147                 AC_DEFINE(NCURSES,1,[Define to 1 if we are using ncurses headers/libraries])
3148
3149                 dnl like CF_NCURSES_LIBS
3150                 CF_UPPER(cf_nculib_ROOT,HAVE_LIB$cf_ncuconfig_root)
3151                 AC_DEFINE_UNQUOTED($cf_nculib_ROOT)
3152
3153                 dnl like CF_NCURSES_VERSION
3154                 cf_cv_ncurses_version="`$NCURSES_CONFIG --version`"
3155
3156         else
3157
3158                 CF_NCURSES_CPPFLAGS(ifelse($1,,ncurses,$1))
3159                 CF_NCURSES_LIBS(ifelse($1,,ncurses,$1))
3160
3161         fi
3162 else
3163         NCURSES_CONFIG=none
3164 fi
3165 ])dnl
3166 dnl ---------------------------------------------------------------------------
3167 dnl CF_NCURSES_CPPFLAGS version: 22 updated: 2021/01/02 09:31:20
3168 dnl -------------------
3169 dnl Look for the SVr4 curses clone 'ncurses' in the standard places, adjusting
3170 dnl the CPPFLAGS variable so we can include its header.
3171 dnl
3172 dnl The header files may be installed as either curses.h, or ncurses.h (would
3173 dnl be obsolete, except that some packagers prefer this name to distinguish it
3174 dnl from a "native" curses implementation).  If not installed for overwrite,
3175 dnl the curses.h file would be in an ncurses subdirectory (e.g.,
3176 dnl /usr/include/ncurses), but someone may have installed overwriting the
3177 dnl vendor's curses.  Only very old versions (pre-1.9.2d, the first autoconf'd
3178 dnl version) of ncurses don't define either __NCURSES_H or NCURSES_VERSION in
3179 dnl the header.
3180 dnl
3181 dnl If the installer has set $CFLAGS or $CPPFLAGS so that the ncurses header
3182 dnl is already in the include-path, don't even bother with this, since we cannot
3183 dnl easily determine which file it is.  In this case, it has to be <curses.h>.
3184 dnl
3185 dnl The optional parameter gives the root name of the library, in case it is
3186 dnl not installed as the default curses library.  That is how the
3187 dnl wide-character version of ncurses is installed.
3188 AC_DEFUN([CF_NCURSES_CPPFLAGS],
3189 [AC_REQUIRE([CF_WITH_CURSES_DIR])
3190
3191 AC_PROVIDE([CF_CURSES_CPPFLAGS])dnl
3192 cf_ncuhdr_root=ifelse($1,,ncurses,$1)
3193
3194 test -n "$cf_cv_curses_dir" && \
3195 test "$cf_cv_curses_dir" != "no" && { \
3196   CF_ADD_INCDIR($cf_cv_curses_dir/include/$cf_ncuhdr_root)
3197 }
3198
3199 AC_CACHE_CHECK(for $cf_ncuhdr_root header in include-path, cf_cv_ncurses_h,[
3200         cf_header_list="$cf_ncuhdr_root/curses.h $cf_ncuhdr_root/ncurses.h"
3201         { test "$cf_ncuhdr_root" = ncurses || test "$cf_ncuhdr_root" = ncursesw; } && cf_header_list="$cf_header_list curses.h ncurses.h"
3202         for cf_header in $cf_header_list
3203         do
3204                 CF_NCURSES_CC_CHECK(cf_cv_ncurses_h,$cf_header,$1)
3205                 test "$cf_cv_ncurses_h" != no && break
3206         done
3207 ])
3208
3209 CF_NCURSES_HEADER
3210 CF_TERM_HEADER
3211
3212 # some applications need this, but should check for NCURSES_VERSION
3213 AC_DEFINE(NCURSES,1,[Define to 1 if we are using ncurses headers/libraries])
3214
3215 CF_NCURSES_VERSION
3216 ])dnl
3217 dnl ---------------------------------------------------------------------------
3218 dnl CF_NCURSES_HEADER version: 7 updated: 2021/01/04 19:33:05
3219 dnl -----------------
3220 dnl Find a "curses" header file, e.g,. "curses.h", or one of the more common
3221 dnl variations of ncurses' installs.
3222 dnl
3223 dnl See also CF_CURSES_HEADER, which sets the same cache variable.
3224 AC_DEFUN([CF_NCURSES_HEADER],[
3225
3226 if test "$cf_cv_ncurses_h" != no ; then
3227         cf_cv_ncurses_header=$cf_cv_ncurses_h
3228 else
3229
3230 AC_CACHE_CHECK(for $cf_ncuhdr_root include-path, cf_cv_ncurses_h2,[
3231         test -n "$verbose" && echo
3232         CF_HEADER_PATH(cf_search,$cf_ncuhdr_root)
3233         test -n "$verbose" && echo "search path $cf_search"
3234         cf_save2_CPPFLAGS="$CPPFLAGS"
3235         for cf_incdir in $cf_search
3236         do
3237                 CF_ADD_INCDIR($cf_incdir)
3238                 for cf_header in \
3239                         ncurses.h \
3240                         curses.h
3241                 do
3242                         CF_NCURSES_CC_CHECK(cf_cv_ncurses_h2,$cf_header,$1)
3243                         if test "$cf_cv_ncurses_h2" != no ; then
3244                                 cf_cv_ncurses_h2=$cf_incdir/$cf_header
3245                                 test -n "$verbose" && echo $ECHO_N "    ... found $ECHO_C" 1>&AC_FD_MSG
3246                                 break
3247                         fi
3248                         test -n "$verbose" && echo "    ... tested $cf_incdir/$cf_header" 1>&AC_FD_MSG
3249                 done
3250                 CPPFLAGS="$cf_save2_CPPFLAGS"
3251                 test "$cf_cv_ncurses_h2" != no && break
3252         done
3253         test "$cf_cv_ncurses_h2" = no && AC_MSG_ERROR(not found)
3254         ])
3255
3256         CF_DIRNAME(cf_1st_incdir,$cf_cv_ncurses_h2)
3257         cf_cv_ncurses_header="`basename "$cf_cv_ncurses_h2"`"
3258         if test "`basename "$cf_1st_incdir"`" = "$cf_ncuhdr_root" ; then
3259                 cf_cv_ncurses_header="$cf_ncuhdr_root/$cf_cv_ncurses_header"
3260         fi
3261         CF_ADD_INCDIR($cf_1st_incdir)
3262
3263 fi
3264
3265 # Set definitions to allow ifdef'ing for ncurses.h
3266
3267 case "$cf_cv_ncurses_header" in
3268 (*ncurses.h)
3269         AC_DEFINE(HAVE_NCURSES_H,1,[Define to 1 if we have ncurses.h])
3270         ;;
3271 esac
3272
3273 case "$cf_cv_ncurses_header" in
3274 (ncurses/curses.h|ncurses/ncurses.h)
3275         AC_DEFINE(HAVE_NCURSES_NCURSES_H,1,[Define to 1 if we have ncurses/ncurses.h])
3276         ;;
3277 (ncursesw/curses.h|ncursesw/ncurses.h)
3278         AC_DEFINE(HAVE_NCURSESW_NCURSES_H,1,[Define to 1 if we have ncursesw/ncurses.h])
3279         ;;
3280 esac
3281
3282 ])dnl
3283 dnl ---------------------------------------------------------------------------
3284 dnl CF_NCURSES_LIBS version: 21 updated: 2021/09/04 06:37:12
3285 dnl ---------------
3286 dnl Look for the ncurses library.  This is a little complicated on Linux,
3287 dnl because it may be linked with the gpm (general purpose mouse) library.
3288 dnl Some distributions have gpm linked with (bsd) curses, which makes it
3289 dnl unusable with ncurses.  However, we don't want to link with gpm unless
3290 dnl ncurses has a dependency, since gpm is normally set up as a shared library,
3291 dnl and the linker will record a dependency.
3292 dnl
3293 dnl The optional parameter gives the root name of the library, in case it is
3294 dnl not installed as the default curses library.  That is how the
3295 dnl wide-character version of ncurses is installed.
3296 AC_DEFUN([CF_NCURSES_LIBS],
3297 [AC_REQUIRE([CF_NCURSES_CPPFLAGS])
3298
3299 cf_nculib_root=ifelse($1,,ncurses,$1)
3300         # This works, except for the special case where we find gpm, but
3301         # ncurses is in a nonstandard location via $LIBS, and we really want
3302         # to link gpm.
3303 cf_ncurses_LIBS=""
3304 cf_ncurses_SAVE="$LIBS"
3305 AC_CHECK_LIB(gpm,Gpm_Open,
3306         [AC_CHECK_LIB(gpm,initscr,
3307                 [LIBS="$cf_ncurses_SAVE"],
3308                 [cf_ncurses_LIBS="-lgpm"])])
3309
3310 case "$host_os" in
3311 (freebsd*)
3312         # This is only necessary if you are linking against an obsolete
3313         # version of ncurses (but it should do no harm, since it is static).
3314         if test "$cf_nculib_root" = ncurses ; then
3315                 AC_CHECK_LIB(mytinfo,tgoto,[cf_ncurses_LIBS="-lmytinfo $cf_ncurses_LIBS"])
3316         fi
3317         ;;
3318 esac
3319
3320 CF_ADD_LIBS($cf_ncurses_LIBS)
3321
3322 if test -n "$cf_cv_curses_dir" && test "$cf_cv_curses_dir" != "no"
3323 then
3324         CF_ADD_LIBS(-l$cf_nculib_root)
3325 else
3326         CF_FIND_LIBRARY($cf_nculib_root,$cf_nculib_root,
3327                 [#include <${cf_cv_ncurses_header:-curses.h}>],
3328                 [initscr()],
3329                 initscr)
3330 fi
3331
3332 if test -n "$cf_ncurses_LIBS" ; then
3333         AC_MSG_CHECKING(if we can link $cf_nculib_root without $cf_ncurses_LIBS)
3334         cf_ncurses_SAVE="$LIBS"
3335         for p in $cf_ncurses_LIBS ; do
3336                 q=`echo "$LIBS" | sed -e "s%$p %%" -e "s%$p$%%"`
3337                 if test "$q" != "$LIBS" ; then
3338                         LIBS="$q"
3339                 fi
3340         done
3341         AC_TRY_LINK([#include <${cf_cv_ncurses_header:-curses.h}>],
3342                 [initscr(); mousemask(0,0); tigetstr((char *)0);],
3343                 [AC_MSG_RESULT(yes)],
3344                 [AC_MSG_RESULT(no)
3345                  LIBS="$cf_ncurses_SAVE"])
3346 fi
3347
3348 CF_UPPER(cf_nculib_ROOT,HAVE_LIB$cf_nculib_root)
3349 AC_DEFINE_UNQUOTED($cf_nculib_ROOT)
3350 ])dnl
3351 dnl ---------------------------------------------------------------------------
3352 dnl CF_NCURSES_VERSION version: 17 updated: 2023/01/05 18:54:02
3353 dnl ------------------
3354 dnl Check for the version of ncurses, to aid in reporting bugs, etc.
3355 dnl Call CF_CURSES_CPPFLAGS first, or CF_NCURSES_CPPFLAGS.  We don't use
3356 dnl AC_REQUIRE since that does not work with the shell's if/then/else/fi.
3357 AC_DEFUN([CF_NCURSES_VERSION],
3358 [
3359 AC_REQUIRE([CF_CURSES_CPPFLAGS])dnl
3360 AC_CACHE_CHECK(for ncurses version, cf_cv_ncurses_version,[
3361         cf_cv_ncurses_version=no
3362         cf_tempfile=out$$
3363         rm -f "$cf_tempfile"
3364         AC_TRY_RUN([
3365 $ac_includes_default
3366
3367 #include <${cf_cv_ncurses_header:-curses.h}>
3368
3369 int main(void)
3370 {
3371         FILE *fp = fopen("$cf_tempfile", "w");
3372 #ifdef NCURSES_VERSION
3373 # ifdef NCURSES_VERSION_PATCH
3374         fprintf(fp, "%s.%d\\n", NCURSES_VERSION, NCURSES_VERSION_PATCH);
3375 # else
3376         fprintf(fp, "%s\\n", NCURSES_VERSION);
3377 # endif
3378 #else
3379 # ifdef __NCURSES_H
3380         fprintf(fp, "old\\n");
3381 # else
3382         make an error
3383 # endif
3384 #endif
3385         ${cf_cv_main_return:-return}(0);
3386 }],[
3387         cf_cv_ncurses_version=`cat $cf_tempfile`],,[
3388
3389         # This will not work if the preprocessor splits the line after the
3390         # Autoconf token.  The 'unproto' program does that.
3391         cat > "conftest.$ac_ext" <<EOF
3392 #include <${cf_cv_ncurses_header:-curses.h}>
3393 #undef Autoconf
3394 #ifdef NCURSES_VERSION
3395 Autoconf NCURSES_VERSION
3396 #else
3397 #ifdef __NCURSES_H
3398 Autoconf "old"
3399 #endif
3400 ;
3401 #endif
3402 EOF
3403         cf_try="$ac_cpp conftest.$ac_ext 2>&AC_FD_CC | grep '^Autoconf ' >conftest.out"
3404         AC_TRY_EVAL(cf_try)
3405         if test -f conftest.out ; then
3406                 cf_out=`sed -e 's%^Autoconf %%' -e 's%^[[^"]]*"%%' -e 's%".*%%' conftest.out`
3407                 test -n "$cf_out" && cf_cv_ncurses_version="$cf_out"
3408                 rm -f conftest.out
3409         fi
3410 ])
3411         rm -f "$cf_tempfile"
3412 ])
3413 test "$cf_cv_ncurses_version" = no || AC_DEFINE(NCURSES,1,[Define to 1 if we are using ncurses headers/libraries])
3414 ])dnl
3415 dnl ---------------------------------------------------------------------------
3416 dnl CF_OBJ_SUBDIR version: 8 updated: 2021/01/01 13:31:04
3417 dnl -------------
3418 dnl Compute the object-directory name from the given model name
3419 AC_DEFUN([CF_OBJ_SUBDIR],
3420 [
3421         case $1 in
3422         (libtool) $2='obj_lo'  ;;
3423         (normal)  $2='objects' ;;
3424         (debug)   $2='obj_g' ;;
3425         (profile) $2='obj_p' ;;
3426         (shared)
3427                 case "$cf_cv_system_name" in
3428                 (cygwin|msys)
3429                         $2='objects' ;;
3430                 (*)
3431                         $2='obj_s' ;;
3432                 esac
3433         esac
3434 ])dnl
3435 dnl ---------------------------------------------------------------------------
3436 dnl CF_PATHSEP version: 8 updated: 2021/01/01 13:31:04
3437 dnl ----------
3438 dnl Provide a value for the $PATH and similar separator (or amend the value
3439 dnl as provided in autoconf 2.5x).
3440 AC_DEFUN([CF_PATHSEP],
3441 [
3442         AC_MSG_CHECKING(for PATH separator)
3443         case "$cf_cv_system_name" in
3444         (os2*)  PATH_SEPARATOR=';'  ;;
3445         (*)     ${PATH_SEPARATOR:=':'}  ;;
3446         esac
3447 ifelse([$1],,,[$1=$PATH_SEPARATOR])
3448         AC_SUBST(PATH_SEPARATOR)
3449         AC_MSG_RESULT($PATH_SEPARATOR)
3450 ])dnl
3451 dnl ---------------------------------------------------------------------------
3452 dnl CF_PATH_SYNTAX version: 18 updated: 2020/12/31 18:40:20
3453 dnl --------------
3454 dnl Check the argument to see that it looks like a pathname.  Rewrite it if it
3455 dnl begins with one of the prefix/exec_prefix variables, and then again if the
3456 dnl result begins with 'NONE'.  This is necessary to work around autoconf's
3457 dnl delayed evaluation of those symbols.
3458 AC_DEFUN([CF_PATH_SYNTAX],[
3459 if test "x$prefix" != xNONE; then
3460         cf_path_syntax="$prefix"
3461 else
3462         cf_path_syntax="$ac_default_prefix"
3463 fi
3464
3465 case ".[$]$1" in
3466 (.\[$]\(*\)*|.\'*\'*)
3467         ;;
3468 (..|./*|.\\*)
3469         ;;
3470 (.[[a-zA-Z]]:[[\\/]]*) # OS/2 EMX
3471         ;;
3472 (.\[$]\{*prefix\}*|.\[$]\{*dir\}*)
3473         eval $1="[$]$1"
3474         case ".[$]$1" in
3475         (.NONE/*)
3476                 $1=`echo "[$]$1" | sed -e s%NONE%$cf_path_syntax%`
3477                 ;;
3478         esac
3479         ;;
3480 (.no|.NONE/*)
3481         $1=`echo "[$]$1" | sed -e s%NONE%$cf_path_syntax%`
3482         ;;
3483 (*)
3484         ifelse([$2],,[AC_MSG_ERROR([expected a pathname, not \"[$]$1\"])],$2)
3485         ;;
3486 esac
3487 ])dnl
3488 dnl ---------------------------------------------------------------------------
3489 dnl CF_PKG_CONFIG version: 13 updated: 2023/10/28 11:59:01
3490 dnl -------------
3491 dnl Check for the package-config program, unless disabled by command-line.
3492 dnl
3493 dnl Sets $PKG_CONFIG to the pathname of the pkg-config program.
3494 AC_DEFUN([CF_PKG_CONFIG],
3495 [
3496 AC_MSG_CHECKING(if you want to use pkg-config)
3497 AC_ARG_WITH(pkg-config,
3498         [[  --with-pkg-config[=CMD] enable/disable use of pkg-config and its name CMD]],
3499         [cf_pkg_config=$withval],
3500         [cf_pkg_config=yes])
3501 AC_MSG_RESULT($cf_pkg_config)
3502
3503 case "$cf_pkg_config" in
3504 (no)
3505         PKG_CONFIG=none
3506         ;;
3507 (yes)
3508         CF_ACVERSION_CHECK(2.52,
3509                 [AC_PATH_TOOL(PKG_CONFIG, pkg-config, none)],
3510                 [AC_PATH_PROG(PKG_CONFIG, pkg-config, none)])
3511         ;;
3512 (*)
3513         PKG_CONFIG=$withval
3514         ;;
3515 esac
3516
3517 test -z "$PKG_CONFIG" && PKG_CONFIG=none
3518 if test "$PKG_CONFIG" != none ; then
3519         CF_PATH_SYNTAX(PKG_CONFIG)
3520 elif test "x$cf_pkg_config" != xno ; then
3521         AC_MSG_WARN(pkg-config is not installed)
3522 fi
3523
3524 AC_SUBST(PKG_CONFIG)
3525 ])dnl
3526 dnl ---------------------------------------------------------------------------
3527 dnl CF_POSIX_C_SOURCE version: 12 updated: 2023/02/18 17:41:25
3528 dnl -----------------
3529 dnl Define _POSIX_C_SOURCE to the given level, and _POSIX_SOURCE if needed.
3530 dnl
3531 dnl     POSIX.1-1990                            _POSIX_SOURCE
3532 dnl     POSIX.1-1990 and                        _POSIX_SOURCE and
3533 dnl             POSIX.2-1992 C-Language                 _POSIX_C_SOURCE=2
3534 dnl             Bindings Option
3535 dnl     POSIX.1b-1993                           _POSIX_C_SOURCE=199309L
3536 dnl     POSIX.1c-1996                           _POSIX_C_SOURCE=199506L
3537 dnl     X/Open 2000                             _POSIX_C_SOURCE=200112L
3538 dnl
3539 dnl Parameters:
3540 dnl     $1 is the nominal value for _POSIX_C_SOURCE
3541 AC_DEFUN([CF_POSIX_C_SOURCE],
3542 [AC_REQUIRE([CF_POSIX_VISIBLE])dnl
3543
3544 if test "$cf_cv_posix_visible" = no; then
3545
3546 cf_POSIX_C_SOURCE=ifelse([$1],,199506L,[$1])
3547
3548 cf_save_CFLAGS="$CFLAGS"
3549 cf_save_CPPFLAGS="$CPPFLAGS"
3550
3551 CF_REMOVE_DEFINE(cf_trim_CFLAGS,$cf_save_CFLAGS,_POSIX_C_SOURCE)
3552 CF_REMOVE_DEFINE(cf_trim_CPPFLAGS,$cf_save_CPPFLAGS,_POSIX_C_SOURCE)
3553
3554 AC_CACHE_CHECK(if we should define _POSIX_C_SOURCE,cf_cv_posix_c_source,[
3555         CF_MSG_LOG(if the symbol is already defined go no further)
3556         AC_TRY_COMPILE([#include <sys/types.h>],[
3557 #ifndef _POSIX_C_SOURCE
3558 #error _POSIX_C_SOURCE is not defined
3559 #endif],
3560         [cf_cv_posix_c_source=no],
3561         [cf_want_posix_source=no
3562          case .$cf_POSIX_C_SOURCE in
3563          (.[[12]]??*)
3564                 cf_cv_posix_c_source="-D_POSIX_C_SOURCE=$cf_POSIX_C_SOURCE"
3565                 ;;
3566          (.2)
3567                 cf_cv_posix_c_source="-D_POSIX_C_SOURCE=$cf_POSIX_C_SOURCE"
3568                 cf_want_posix_source=yes
3569                 ;;
3570          (.*)
3571                 cf_want_posix_source=yes
3572                 ;;
3573          esac
3574          if test "$cf_want_posix_source" = yes ; then
3575                 AC_TRY_COMPILE([#include <sys/types.h>],[
3576 #ifdef _POSIX_SOURCE
3577 #error _POSIX_SOURCE is defined
3578 #endif],[],
3579                 cf_cv_posix_c_source="$cf_cv_posix_c_source -D_POSIX_SOURCE")
3580          fi
3581          CF_MSG_LOG(ifdef from value $cf_POSIX_C_SOURCE)
3582          CFLAGS="$cf_trim_CFLAGS"
3583          CPPFLAGS="$cf_trim_CPPFLAGS"
3584          CF_APPEND_TEXT(CPPFLAGS,$cf_cv_posix_c_source)
3585          CF_MSG_LOG(if the second compile does not leave our definition intact error)
3586          AC_TRY_COMPILE([#include <sys/types.h>],[
3587 #ifndef _POSIX_C_SOURCE
3588 #error _POSIX_C_SOURCE is not defined
3589 #endif],,
3590          [cf_cv_posix_c_source=no])
3591          CFLAGS="$cf_save_CFLAGS"
3592          CPPFLAGS="$cf_save_CPPFLAGS"
3593         ])
3594 ])
3595
3596 if test "$cf_cv_posix_c_source" != no ; then
3597         CFLAGS="$cf_trim_CFLAGS"
3598         CPPFLAGS="$cf_trim_CPPFLAGS"
3599         CF_ADD_CFLAGS($cf_cv_posix_c_source)
3600 fi
3601
3602 fi # cf_cv_posix_visible
3603
3604 ])dnl
3605 dnl ---------------------------------------------------------------------------
3606 dnl CF_POSIX_VISIBLE version: 1 updated: 2018/12/31 20:46:17
3607 dnl ----------------
3608 dnl POSIX documents test-macros which an application may set before any system
3609 dnl headers are included to make features available.
3610 dnl
3611 dnl Some BSD platforms (originally FreeBSD, but copied by a few others)
3612 dnl diverged from POSIX in 2002 by setting symbols which make all of the most
3613 dnl recent features visible in the system header files unless the application
3614 dnl overrides the corresponding test-macros.  Doing that introduces portability
3615 dnl problems.
3616 dnl
3617 dnl This macro makes a special check for the symbols used for this, to avoid a
3618 dnl conflicting definition.
3619 AC_DEFUN([CF_POSIX_VISIBLE],
3620 [
3621 AC_CACHE_CHECK(if the POSIX test-macros are already defined,cf_cv_posix_visible,[
3622 AC_TRY_COMPILE([#include <stdio.h>],[
3623 #if defined(__POSIX_VISIBLE) && ((__POSIX_VISIBLE - 0L) > 0) \
3624         && defined(__XSI_VISIBLE) && ((__XSI_VISIBLE - 0L) > 0) \
3625         && defined(__BSD_VISIBLE) && ((__BSD_VISIBLE - 0L) > 0) \
3626         && defined(__ISO_C_VISIBLE) && ((__ISO_C_VISIBLE - 0L) > 0)
3627 #error conflicting symbols found
3628 #endif
3629 ],[cf_cv_posix_visible=no],[cf_cv_posix_visible=yes])
3630 ])
3631 ])dnl
3632 dnl ---------------------------------------------------------------------------
3633 dnl CF_PROG_AR version: 1 updated: 2009/01/01 20:15:22
3634 dnl ----------
3635 dnl Check for archiver "ar".
3636 AC_DEFUN([CF_PROG_AR],[
3637 AC_CHECK_TOOL(AR, ar, ar)
3638 ])
3639 dnl ---------------------------------------------------------------------------
3640 dnl CF_PROG_AWK version: 1 updated: 2006/09/16 11:40:59
3641 dnl -----------
3642 dnl Check for awk, ensure that the check found something.
3643 AC_DEFUN([CF_PROG_AWK],
3644 [
3645 AC_PROG_AWK
3646 test -z "$AWK" && AC_MSG_ERROR(No awk program found)
3647 ])dnl
3648 dnl ---------------------------------------------------------------------------
3649 dnl CF_PROG_CC version: 5 updated: 2019/12/31 08:53:54
3650 dnl ----------
3651 dnl standard check for CC, plus followup sanity checks
3652 dnl $1 = optional parameter to pass to AC_PROG_CC to specify compiler name
3653 AC_DEFUN([CF_PROG_CC],[
3654 CF_ACVERSION_CHECK(2.53,
3655         [AC_MSG_WARN(this will incorrectly handle gnatgcc choice)
3656          AC_REQUIRE([AC_PROG_CC])],
3657         [])
3658 ifelse($1,,[AC_PROG_CC],[AC_PROG_CC($1)])
3659 CF_GCC_VERSION
3660 CF_ACVERSION_CHECK(2.52,
3661         [AC_PROG_CC_STDC],
3662         [CF_ANSI_CC_REQD])
3663 CF_CC_ENV_FLAGS
3664 ])dnl
3665 dnl ---------------------------------------------------------------------------
3666 dnl CF_PROG_CC_C_O version: 6 updated: 2021/01/01 13:31:04
3667 dnl --------------
3668 dnl Analogous to AC_PROG_CC_C_O, but more useful: tests only $CC, ensures that
3669 dnl the output file can be renamed, and allows for a shell variable that can
3670 dnl be used later.  The parameter is either CC or CXX.  The result is the
3671 dnl cache variable:
3672 dnl     $cf_cv_prog_CC_c_o
3673 dnl     $cf_cv_prog_CXX_c_o
3674 dnl
3675 dnl $1 = compiler
3676 dnl $2 = compiler options, if any
3677 AC_DEFUN([CF_PROG_CC_C_O],
3678 [AC_REQUIRE([AC_PROG_CC])dnl
3679 AC_MSG_CHECKING([whether [$]$1 understands -c and -o together])
3680 AC_CACHE_VAL(cf_cv_prog_$1_c_o,
3681 [
3682 cat > conftest.$ac_ext <<CF_EOF
3683 int main(void)
3684 {
3685         ${cf_cv_main_return:-return}(0);
3686 }
3687 CF_EOF
3688 # We do the test twice because some compilers refuse to overwrite an
3689 # existing .o file with -o, though they will create one.
3690 ac_try='[$]$1 $2 -c conftest.$ac_ext -o conftest2.$ac_objext >&AC_FD_CC'
3691 if AC_TRY_EVAL(ac_try) &&
3692   test -f conftest2.$ac_objext && AC_TRY_EVAL(ac_try);
3693 then
3694   eval cf_cv_prog_$1_c_o=yes
3695 else
3696   eval cf_cv_prog_$1_c_o=no
3697 fi
3698 rm -rf ./conftest*
3699 ])dnl
3700 if test "$cf_cv_prog_$1_c_o" = yes; then
3701   AC_MSG_RESULT([yes])
3702 else
3703   AC_MSG_RESULT([no])
3704 fi
3705 ])dnl
3706 dnl ---------------------------------------------------------------------------
3707 dnl CF_PROG_EGREP version: 2 updated: 2015/04/18 08:56:57
3708 dnl -------------
3709 dnl AC_PROG_EGREP was introduced in autoconf 2.53.
3710 dnl This macro adds a check to ensure the script found something.
3711 AC_DEFUN([CF_PROG_EGREP],
3712 [AC_CACHE_CHECK([for egrep], [ac_cv_prog_egrep],
3713         [if echo a | (grep -E '(a|b)') >/dev/null 2>&1
3714                 then ac_cv_prog_egrep='grep -E'
3715                 else ac_cv_prog_egrep='egrep'
3716         fi])
3717         EGREP=$ac_cv_prog_egrep
3718         AC_SUBST([EGREP])
3719         test -z "$EGREP" && AC_MSG_ERROR(No egrep program found)
3720 ])dnl
3721 dnl ---------------------------------------------------------------------------
3722 dnl CF_PROG_EXT version: 15 updated: 2021/01/02 09:31:20
3723 dnl -----------
3724 dnl Compute $PROG_EXT, used for non-Unix ports, such as OS/2 EMX.
3725 AC_DEFUN([CF_PROG_EXT],
3726 [
3727 AC_REQUIRE([CF_CHECK_CACHE])
3728 case "$cf_cv_system_name" in
3729 (os2*)
3730         CFLAGS="$CFLAGS -Zmt"
3731         CF_APPEND_TEXT(CPPFLAGS,-D__ST_MT_ERRNO__)
3732         CXXFLAGS="$CXXFLAGS -Zmt"
3733         # autoconf's macro sets -Zexe and suffix both, which conflict:w
3734         LDFLAGS="$LDFLAGS -Zmt -Zcrtdll"
3735         ac_cv_exeext=.exe
3736         ;;
3737 esac
3738
3739 AC_EXEEXT
3740 AC_OBJEXT
3741
3742 PROG_EXT="$EXEEXT"
3743 AC_SUBST(PROG_EXT)
3744 test -n "$PROG_EXT" && AC_DEFINE_UNQUOTED(PROG_EXT,"$PROG_EXT",[Define to the program extension (normally blank)])
3745 ])dnl
3746 dnl ---------------------------------------------------------------------------
3747 dnl CF_PROG_GNAT version: 12 updated: 2021/01/02 17:09:14
3748 dnl ------------
3749 dnl Check for gnat/gnatmake/etc, ensure that the toolset is complete.
3750 AC_DEFUN([CF_PROG_GNAT],[
3751 for cf_prog_gnat in gnat gnatmake gprconfig gprbuild
3752 do
3753         CF_UPPER(cf_upper_prog_gnat,${cf_prog_gnat})
3754
3755         unset ac_cv_path_cf_TEMP_gnat
3756         unset cf_TEMP_gnat
3757         AC_PATH_PROG(cf_TEMP_gnat,$cf_prog_gnat,no)
3758         eval "cf_cv_PATH_$cf_upper_prog_gnat=[$]ac_cv_path_cf_TEMP_gnat"
3759
3760         if test "x$cf_TEMP_gnat" != xno; then
3761                 unset cf_cv_gnat_version
3762                 unset cf_TEMP_gnat
3763                 CF_GNAT_VERSION(cf_TEMP_gnat,$cf_prog_gnat)
3764         fi
3765         eval "cf_cv_VERSION_$cf_upper_prog_gnat=[$]cf_TEMP_gnat"
3766
3767         unset cf_TEMP_gnat
3768         unset cf_cv_gnat_version
3769         unset ac_cv_path_cf_TEMP_gnat
3770 done
3771
3772 if test "x$cf_cv_VERSION_GNATMAKE" = "xno"; then
3773         cf_ada_make=
3774         cf_cv_prog_gnat_correct=no
3775 else
3776         cf_ada_make=gnatmake
3777         if test "x$cf_cv_VERSION_GPRCONFIG" = "xno"; then
3778                 # gprconfig is newer than gnatmake; we can continue...
3779                 cf_ada_config="##"
3780         else
3781                 rm -rf ./conftest* ./*~conftest*
3782                 if mkdir conftest.src
3783                 then
3784                         cf_ada_config=""
3785                         cd conftest.src
3786                         for cf_gprconfig in Ada C
3787                         do
3788                                 AC_MSG_CHECKING(for gprconfig name for $cf_gprconfig)
3789                                 if test "$cf_gprconfig" = C
3790                                 then
3791                                         for cf_gprconfig_param in \
3792                                                 "$cf_gprconfig,,,,GNATGCC" \
3793                                                 "$cf_gprconfig,,,,GCC" \
3794                                                 "$cf_gprconfig"
3795                                         do
3796                                                 cf_gprconfig_value=`echo s| gprconfig --config=$cf_gprconfig_param 2>&AC_FD_CC | ${AWK:-awk} '/^\*/{print [$]3;}' | head -n 1`
3797                                                 test -n "$cf_gprconfig_value" && break
3798                                         done
3799                                 else
3800                                         cf_gprconfig_param=$cf_gprconfig
3801                                         cf_gprconfig_value=`echo s| gprconfig --config=$cf_gprconfig_param 2>&AC_FD_CC | ${AWK:-awk} '/^\*/{print [$]3;}' | head -n 1`
3802                                 fi
3803                                 if test -n "$cf_gprconfig_value"
3804                                 then
3805                                         eval "cf_ada_config_[$]cf_gprconfig=[$]cf_gprconfig_value"
3806                                         AC_MSG_RESULT($cf_gprconfig_value)
3807                                 else
3808                                         AC_MSG_RESULT(missing)
3809                                         cf_ada_config="#"
3810                                         break
3811                                 fi
3812                         done
3813                         cd ..
3814                         rm -rf ./conftest* ./*~conftest*
3815                 fi
3816         fi
3817         if test "x$cf_ada_config" != "x#"
3818         then
3819                 CF_GNAT_VERSION
3820                 CF_CHECK_GNAT_VERSION
3821                 AC_CHECK_PROG(M4_exists, m4, yes, no)
3822                 if test "$ac_cv_prog_M4_exists" = no; then
3823                         cf_cv_prog_gnat_correct=no
3824                         AC_MSG_WARN(Ada95 binding required program m4 not found. Ada95 binding disabled)
3825                 fi
3826                 if test "$cf_cv_prog_gnat_correct" = yes; then
3827                         AC_MSG_CHECKING(if GNAT works)
3828                         CF_GNAT_TRY_RUN([procedure conftest;],
3829 [with Text_IO;
3830 with GNAT.OS_Lib;
3831 procedure conftest is
3832 begin
3833    Text_IO.Put ("Hello World");
3834    Text_IO.New_Line;
3835    GNAT.OS_Lib.OS_Exit (0);
3836 end conftest;],
3837 [cf_cv_prog_gnat_correct=yes],
3838 [cf_cv_prog_gnat_correct=no])
3839                         AC_MSG_RESULT($cf_cv_prog_gnat_correct)
3840                 fi
3841         else
3842                 cf_cv_prog_gnat_correct=no
3843         fi
3844 fi
3845
3846 AC_SUBST(cf_ada_make)
3847 AC_SUBST(cf_ada_config)
3848 AC_SUBST(cf_ada_config_Ada)
3849 AC_SUBST(cf_ada_config_C)
3850 ])dnl
3851 dnl ---------------------------------------------------------------------------
3852 dnl CF_PROG_INSTALL version: 10 updated: 2021/01/04 19:33:05
3853 dnl ---------------
3854 dnl Force $INSTALL to be an absolute-path.  Otherwise, edit_man.sh and the
3855 dnl misc/tabset install won't work properly.  Usually this happens only when
3856 dnl using the fallback mkinstalldirs script
3857 AC_DEFUN([CF_PROG_INSTALL],
3858 [AC_PROG_INSTALL
3859 case $INSTALL in
3860 (/*)
3861         ;;
3862 (*)
3863         CF_DIRNAME(cf_dir,$INSTALL)
3864         test -z "$cf_dir" && cf_dir=.
3865         INSTALL="`cd \"$cf_dir\" && pwd`"/"`echo "$INSTALL" | sed -e 's%^.*/%%'`"
3866         ;;
3867 esac
3868 ])dnl
3869 dnl ---------------------------------------------------------------------------
3870 dnl CF_PROG_LN_S version: 2 updated: 2010/08/14 18:25:37
3871 dnl ------------
3872 dnl Combine checks for "ln -s" and "ln -sf", updating $LN_S to include "-f"
3873 dnl option if it is supported.
3874 AC_DEFUN([CF_PROG_LN_S],[
3875 AC_PROG_LN_S
3876 AC_MSG_CHECKING(if $LN_S -f options work)
3877
3878 rm -f conf$$.src conf$$dst
3879 echo >conf$$.dst
3880 echo first >conf$$.src
3881 if $LN_S -f conf$$.src conf$$.dst 2>/dev/null; then
3882         cf_prog_ln_sf=yes
3883 else
3884         cf_prog_ln_sf=no
3885 fi
3886 rm -f conf$$.dst conf$$src
3887 AC_MSG_RESULT($cf_prog_ln_sf)
3888
3889 test "$cf_prog_ln_sf" = yes && LN_S="$LN_S -f"
3890 ])dnl
3891 dnl ---------------------------------------------------------------------------
3892 dnl CF_REMOVE_CFLAGS version: 3 updated: 2021/09/05 17:25:40
3893 dnl ----------------
3894 dnl Remove a given option from CFLAGS/CPPFLAGS
3895 dnl $1 = option to remove
3896 dnl $2 = variable to update
3897 dnl $3 = nonempty to allow verbose message
3898 define([CF_REMOVE_CFLAGS],
3899 [
3900 cf_tmp_cflag=`echo "x$1" | sed -e 's/^.//' -e 's/=.*//'`
3901 while true
3902 do
3903         cf_old_cflag=`echo "x[$]$2" | sed -e 's/^.//' -e 's/[[  ]][[    ]]*-/ -/g' -e "s%$cf_tmp_cflag\\(=[[^   ]][[^   ]]*\\)\?%%" -e 's/^[[   ]]*//' -e 's%[[ ]][[ ]]*-D% -D%g' -e 's%[[ ]][[ ]]*-I% -I%g'`
3904         test "[$]$2" != "$cf_old_cflag" || break
3905         ifelse([$3],,,[CF_VERBOSE(removing old option $1 from $2)])
3906         $2="$cf_old_cflag"
3907 done
3908 ])dnl
3909 dnl ---------------------------------------------------------------------------
3910 dnl CF_REMOVE_DEFINE version: 3 updated: 2010/01/09 11:05:50
3911 dnl ----------------
3912 dnl Remove all -U and -D options that refer to the given symbol from a list
3913 dnl of C compiler options.  This works around the problem that not all
3914 dnl compilers process -U and -D options from left-to-right, so a -U option
3915 dnl cannot be used to cancel the effect of a preceding -D option.
3916 dnl
3917 dnl $1 = target (which could be the same as the source variable)
3918 dnl $2 = source (including '$')
3919 dnl $3 = symbol to remove
3920 define([CF_REMOVE_DEFINE],
3921 [
3922 $1=`echo "$2" | \
3923         sed     -e 's/-[[UD]]'"$3"'\(=[[^       ]]*\)\?[[       ]]/ /g' \
3924                 -e 's/-[[UD]]'"$3"'\(=[[^       ]]*\)\?[$]//g'`
3925 ])dnl
3926 dnl ---------------------------------------------------------------------------
3927 dnl CF_REMOVE_LIB version: 1 updated: 2007/02/17 14:11:52
3928 dnl -------------
3929 dnl Remove the given library from the symbol
3930 dnl
3931 dnl $1 = target (which could be the same as the source variable)
3932 dnl $2 = source (including '$')
3933 dnl $3 = library to remove
3934 define([CF_REMOVE_LIB],
3935 [
3936 # remove $3 library from $2
3937 $1=`echo "$2" | sed -e 's/-l$3[[        ]]//g' -e 's/-l$3[$]//'`
3938 ])dnl
3939 dnl ---------------------------------------------------------------------------
3940 dnl CF_RESTORE_XTRA_FLAGS version: 1 updated: 2020/01/11 16:47:45
3941 dnl ---------------------
3942 dnl Restore flags saved in CF_SAVE_XTRA_FLAGS
3943 dnl $1 = name of current macro
3944 define([CF_RESTORE_XTRA_FLAGS],
3945 [
3946 LIBS="$cf_save_LIBS_$1"
3947 CFLAGS="$cf_save_CFLAGS_$1"
3948 CPPFLAGS="$cf_save_CPPFLAGS_$1"
3949 ])dnl
3950 dnl ---------------------------------------------------------------------------
3951 dnl CF_SAVE_XTRA_FLAGS version: 1 updated: 2020/01/11 16:46:44
3952 dnl ------------------
3953 dnl Use this macro to save CFLAGS/CPPFLAGS/LIBS before checks against X headers
3954 dnl and libraries which do not update those variables.
3955 dnl
3956 dnl $1 = name of current macro
3957 define([CF_SAVE_XTRA_FLAGS],
3958 [
3959 cf_save_LIBS_$1="$LIBS"
3960 cf_save_CFLAGS_$1="$CFLAGS"
3961 cf_save_CPPFLAGS_$1="$CPPFLAGS"
3962 LIBS="$LIBS ${X_PRE_LIBS} ${X_LIBS} ${X_EXTRA_LIBS}"
3963 for cf_X_CFLAGS in $X_CFLAGS
3964 do
3965         case "x$cf_X_CFLAGS" in
3966         x-[[IUD]]*)
3967                 CPPFLAGS="$CPPFLAGS $cf_X_CFLAGS"
3968                 ;;
3969         *)
3970                 CFLAGS="$CFLAGS $cf_X_CFLAGS"
3971                 ;;
3972         esac
3973 done
3974 ])dnl
3975 dnl ---------------------------------------------------------------------------
3976 dnl CF_SHARED_OPTS version: 108 updated: 2023/10/28 11:59:01
3977 dnl --------------
3978 dnl --------------
3979 dnl Attempt to determine the appropriate CC/LD options for creating a shared
3980 dnl library.
3981 dnl
3982 dnl Notes:
3983 dnl a) ${LOCAL_LDFLAGS} is used to link executables that will run within
3984 dnl the build-tree, i.e., by making use of the libraries that are compiled in
3985 dnl $rel_builddir/lib We avoid compiling-in a $rel_builddir/lib path for the
3986 dnl shared library since that can lead to unexpected results at runtime.
3987 dnl b) ${LOCAL_LDFLAGS2} has the same intention but assumes that the shared
3988 dnl libraries are compiled in ../../lib
3989 dnl
3990 dnl The variable 'cf_cv_do_symlinks' is used to control whether we configure
3991 dnl to install symbolic links to the rel/abi versions of shared libraries.
3992 dnl
3993 dnl The variable 'cf_cv_shlib_version' controls whether we use the rel or abi
3994 dnl version when making symbolic links.
3995 dnl
3996 dnl The variable 'cf_cv_shlib_version_infix' controls whether shared library
3997 dnl version numbers are infix (ex: libncurses.<ver>.dylib) or postfix
3998 dnl (ex: libncurses.so.<ver>).
3999 dnl
4000 dnl Some loaders leave 'so_locations' lying around.  It is nice to clean up.
4001 AC_DEFUN([CF_SHARED_OPTS],
4002 [
4003         AC_REQUIRE([CF_LD_RPATH_OPT])
4004
4005         RM_SHARED_OPTS=
4006         LOCAL_LDFLAGS=
4007         LOCAL_LDFLAGS2=
4008         LD_SHARED_OPTS=
4009         INSTALL_LIB="-m 644"
4010         : ${rel_builddir:=.}
4011
4012         shlibdir=$libdir
4013         AC_SUBST(shlibdir)
4014
4015         MAKE_DLLS="#"
4016         AC_SUBST(MAKE_DLLS)
4017
4018         cf_cv_do_symlinks=no
4019         cf_ld_rpath_opt=
4020         test "$cf_cv_enable_rpath" = yes && cf_ld_rpath_opt="$LD_RPATH_OPT"
4021
4022         AC_MSG_CHECKING(whether to use release or ABI version in shared library file names)
4023         AC_ARG_WITH(shlib-version,
4024         [[  --with-shlib-version[={rel|abi}] use release or ABI version in shared library file names]],
4025         [test -z "$withval" && withval=auto
4026         case "$withval" in
4027         (yes)
4028                 cf_cv_shlib_version=auto
4029                 ;;
4030         (rel|abi|auto)
4031                 cf_cv_shlib_version=$withval
4032                 ;;
4033         (*)
4034                 AC_MSG_RESULT($withval)
4035                 AC_MSG_ERROR([option value must be one of: rel, abi, or auto])
4036                 ;;
4037         esac
4038         ],[cf_cv_shlib_version=auto])
4039         AC_MSG_RESULT($cf_cv_shlib_version)
4040
4041         cf_cv_rm_so_locs=no
4042         cf_try_cflags=
4043
4044         # Some less-capable ports of gcc support only -fpic
4045         CC_SHARED_OPTS=
4046
4047         cf_try_fPIC=no
4048         if test "$GCC" = yes
4049         then
4050                 cf_try_fPIC=yes
4051         else
4052                 case "$cf_cv_system_name" in
4053                 (*linux*)       # e.g., PGI compiler
4054                         cf_try_fPIC=yes
4055                         ;;
4056                 esac
4057         fi
4058
4059         if test "$cf_try_fPIC" = yes
4060         then
4061                 AC_MSG_CHECKING(which $CC option to use)
4062                 cf_save_CFLAGS="$CFLAGS"
4063                 for CC_SHARED_OPTS in -fPIC -fpic ''
4064                 do
4065                         CFLAGS="$cf_save_CFLAGS $CC_SHARED_OPTS"
4066                         AC_TRY_COMPILE([#include <stdio.h>],[int x = 1],[break],[])
4067                 done
4068                 AC_MSG_RESULT($CC_SHARED_OPTS)
4069                 CFLAGS="$cf_save_CFLAGS"
4070         fi
4071
4072         cf_cv_shlib_version_infix=no
4073
4074         case "$cf_cv_system_name" in
4075         (aix4.[3-9]*|aix[[5-7]]*)
4076                 if test "$GCC" = yes; then
4077                         CC_SHARED_OPTS='-Wl,-brtl'
4078                         MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -Wl,-brtl -Wl,-blibpath:${RPATH_LIST}:/usr/lib -o [$]@'
4079                 else
4080                         CC_SHARED_OPTS='-brtl'
4081                         # as well as '-qpic=large -G' or perhaps "-bM:SRE -bnoentry -bexpall"
4082                         MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -G -Wl,-brtl -Wl,-blibpath:${RPATH_LIST}:/usr/lib -o [$]@'
4083                 fi
4084                 ;;
4085         (beos*)
4086                 MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -o $[@] -Xlinker -soname=`basename $[@]` -nostart -e 0'
4087                 ;;
4088         (cygwin*)
4089                 CC_SHARED_OPTS=
4090                 MK_SHARED_LIB=$SHELL' '$rel_builddir'/mk_shared_lib.sh [$]@ [$]{CC} [$]{CFLAGS}'
4091                 RM_SHARED_OPTS="$RM_SHARED_OPTS $rel_builddir/mk_shared_lib.sh *.dll.a"
4092                 cf_cv_shlib_version=cygdll
4093                 cf_cv_shlib_version_infix=cygdll
4094                 shlibdir=$bindir
4095                 MAKE_DLLS=
4096                 cat >mk_shared_lib.sh <<-CF_EOF
4097                 #!$SHELL
4098                 SHARED_LIB=\[$]1
4099                 IMPORT_LIB=\`echo "\[$]1" | sed -e 's/cyg/lib/' -e 's/[[0-9]]*\.dll[$]/.dll.a/'\`
4100                 shift
4101                 cat <<-EOF
4102                 Linking shared library
4103                 ** SHARED_LIB \[$]SHARED_LIB
4104                 ** IMPORT_LIB \[$]IMPORT_LIB
4105 EOF
4106                 exec \[$]* ${LDFLAGS} -shared -Wl,--out-implib=\[$]{IMPORT_LIB} -Wl,--export-all-symbols -o \[$]{SHARED_LIB}
4107 CF_EOF
4108                 chmod +x mk_shared_lib.sh
4109                 ;;
4110         (msys*)
4111                 CC_SHARED_OPTS=
4112                 MK_SHARED_LIB=$SHELL' '$rel_builddir'/mk_shared_lib.sh [$]@ [$]{CC} [$]{CFLAGS}'
4113                 RM_SHARED_OPTS="$RM_SHARED_OPTS $rel_builddir/mk_shared_lib.sh *.dll.a"
4114                 cf_cv_shlib_version=msysdll
4115                 cf_cv_shlib_version_infix=msysdll
4116                 shlibdir=$bindir
4117                 MAKE_DLLS=
4118                 cat >mk_shared_lib.sh <<-CF_EOF
4119                 #!$SHELL
4120                 SHARED_LIB=\[$]1
4121                 IMPORT_LIB=\`echo "\[$]1" | sed -e 's/msys-/lib/' -e 's/[[0-9]]*\.dll[$]/.dll.a/'\`
4122                 shift
4123                 cat <<-EOF
4124                 Linking shared library
4125                 ** SHARED_LIB \[$]SHARED_LIB
4126                 ** IMPORT_LIB \[$]IMPORT_LIB
4127 EOF
4128                 exec \[$]* ${LDFLAGS} -shared -Wl,--out-implib=\[$]{IMPORT_LIB} -Wl,--export-all-symbols -o \[$]{SHARED_LIB}
4129 CF_EOF
4130                 chmod +x mk_shared_lib.sh
4131                 ;;
4132         (darwin*)
4133                 cf_try_cflags="no-cpp-precomp"
4134                 CC_SHARED_OPTS="-dynamic"
4135                 MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -dynamiclib -install_name ${libdir}/`basename $[@]` -compatibility_version ${ABI_VERSION} -current_version ${ABI_VERSION} -o $[@]'
4136                 test "$cf_cv_shlib_version" = auto && cf_cv_shlib_version=abi
4137                 cf_cv_shlib_version_infix=yes
4138                 AC_CACHE_CHECK([if ld -search_paths_first works], cf_cv_ldflags_search_paths_first, [
4139                         cf_save_LDFLAGS=$LDFLAGS
4140                         LDFLAGS="$LDFLAGS -Wl,-search_paths_first"
4141                         AC_TRY_LINK(, [int i;], cf_cv_ldflags_search_paths_first=yes, cf_cv_ldflags_search_paths_first=no)
4142                                 LDFLAGS=$cf_save_LDFLAGS])
4143                 if test "$cf_cv_ldflags_search_paths_first" = yes; then
4144                         LDFLAGS="$LDFLAGS -Wl,-search_paths_first"
4145                 fi
4146                 ;;
4147         (haiku*)
4148                 CF_SHARED_SONAME
4149                 MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -Wl,-soname,'$cf_cv_shared_soname',-stats,-lc -o $[@]'
4150                 ;;
4151         (hpux[[7-8]]*)
4152                 # HP-UX 8.07 ld lacks "+b" option used for libdir search-list
4153                 if test "$GCC" != yes; then
4154                         CC_SHARED_OPTS='+Z'
4155                 fi
4156                 MK_SHARED_LIB='${LD} ${LDFLAGS} -b -o $[@]'
4157                 INSTALL_LIB="-m 555"
4158                 ;;
4159         (hpux*)
4160                 # (tested with gcc 2.7.2 -- I don't have c89)
4161                 if test "$GCC" = yes; then
4162                         LD_SHARED_OPTS='-Xlinker +b -Xlinker ${libdir}'
4163                 else
4164                         CC_SHARED_OPTS='+Z'
4165                         LD_SHARED_OPTS='-Wl,+b,${libdir}'
4166                 fi
4167                 MK_SHARED_LIB='${LD} ${LDFLAGS} +b ${libdir} -b -o $[@]'
4168                 # HP-UX shared libraries must be executable, and should be
4169                 # readonly to exploit a quirk in the memory manager.
4170                 INSTALL_LIB="-m 555"
4171                 ;;
4172         (interix*)
4173                 test "$cf_cv_shlib_version" = auto && cf_cv_shlib_version=rel
4174                 if test "$cf_cv_shlib_version" = rel; then
4175                         cf_shared_soname='`basename $[@] .${REL_VERSION}`.${ABI_VERSION}'
4176                 else
4177                         cf_shared_soname='`basename $[@]`'
4178                 fi
4179                 CC_SHARED_OPTS=
4180                 MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -Wl,-rpath,${RPATH_LIST} -Wl,-h,'$cf_shared_soname' -o $[@]'
4181                 ;;
4182         (irix*)
4183                 if test "$cf_cv_enable_rpath" = yes ; then
4184                         EXTRA_LDFLAGS="${cf_ld_rpath_opt}\${RPATH_LIST} $EXTRA_LDFLAGS"
4185                 fi
4186                 # tested with IRIX 5.2 and 'cc'.
4187                 if test "$GCC" != yes; then
4188                         CC_SHARED_OPTS='-KPIC'
4189                         MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -rdata_shared -soname `basename $[@]` -o $[@]'
4190                 else
4191                         MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -Wl,-soname,`basename $[@]` -o $[@]'
4192                 fi
4193                 cf_cv_rm_so_locs=yes
4194                 ;;
4195         (linux*|gnu*|k*bsd*-gnu)
4196                 if test "$DFT_LWR_MODEL" = "shared" && test -n "$LD_RPATH_OPT" ; then
4197                         LOCAL_LDFLAGS="${LD_RPATH_OPT}\$(LOCAL_LIBDIR)"
4198                         LOCAL_LDFLAGS2="$LOCAL_LDFLAGS"
4199                 fi
4200                 if test "$cf_cv_enable_rpath" = yes ; then
4201                         EXTRA_LDFLAGS="${cf_ld_rpath_opt}\${RPATH_LIST} $EXTRA_LDFLAGS"
4202                 fi
4203                 CF_SHARED_SONAME
4204                 MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -Wl,-soname,'$cf_cv_shared_soname',-stats,-lc -o $[@]'
4205                 ;;
4206         (mingw*msvc*)
4207                 cf_cv_shlib_version=msvcdll
4208                 cf_cv_shlib_version_infix=msvcdll
4209                 shlibdir=$bindir
4210                 MAKE_DLLS=
4211                 if test "$DFT_LWR_MODEL" = "shared" ; then
4212                         LOCAL_LDFLAGS="-link -dll"
4213                         LOCAL_LDFLAGS2="$LOCAL_LDFLAGS"
4214                         EXTRA_LDFLAGS="-link -dll $EXTRA_LDFLAGS"
4215                 fi
4216                 CC_SHARED_OPTS=
4217                 MK_SHARED_LIB=$SHELL' '$rel_builddir'/mk_shared_lib.sh [$]@ ${LD} [$]{CFLAGS}'
4218                 RM_SHARED_OPTS="$RM_SHARED_OPTS $rel_builddir/mk_shared_lib.sh *.dll.lib"
4219                 cat >mk_shared_lib.sh <<-CF_EOF
4220                 #!$SHELL
4221                 SHARED_LIB=\[$]1
4222                 IMPORT_LIB=\`echo "\[$]1" | sed -e 's/[[0-9]]*\.dll[$]/.dll.lib/'\`
4223                 shift
4224                 my_ld=\[$]1
4225                 shift
4226                 cat <<-EOF
4227                 Linking shared library
4228                 ** SHARED LIB \$SHARED_LIB
4229                 ** IMPORT_LIB \$IMPORT_LIB
4230 EOF
4231                 args=\$(echo \[$]* | sed -E "s#-l(\w*)#\1.dll.lib#g" | sed -E "s#-L(\w*)#-LIBPATH:\1#g")
4232                 exec \$my_ld -DLL -IMPLIB:"\${IMPORT_LIB}" -OUT:"\${SHARED_LIB}" ${LDFLAGS} \$args
4233                 mv "\${IMPORT_LIB}" "\${IMPORT_LIB}"
4234 CF_EOF
4235                 chmod +x mk_shared_lib.sh
4236                 cat >mk_prog.sh <<-CF_EOF
4237                 #!$SHELL
4238                 shift
4239                 # Ignore first argument (compiler) and use LD (link.exe) unconditionally
4240                 LD="[$]LD"
4241                 clopts=()
4242                 ldopts=("/subsystem:console")
4243                 libs=()
4244                 isdll=0
4245                 while test \[$]# -gt 0; do
4246                         case "\[$]1" in
4247                                 -link)
4248                                         # ignore -link argument
4249                                         ;;
4250                                 -M[[TD]] | -M[[TD]]d)
4251                                         # ignore runtime-library option
4252                                         ;;
4253                                 -dll)
4254                                         isdll=1
4255                                         ;;
4256                                 -W* | -w*)
4257                                         # ignore warnings
4258                                         ;;
4259                                 -D*)
4260                                         clopts+=("\[$]1")
4261                                         ;;
4262                                 -I*)
4263                                         clopts+=("\[$]1")
4264                                         ;;
4265                                 -l*)
4266                                         libs+=("\`echo \"\[$]1\" | sed \"s/^-l//\"\`")
4267                                         ;;
4268                                 -L*)
4269                                         ldopts+=("\`echo \"\[$]1\" | sed \"s/^-L/-LIBPATH:/\"\`")
4270                                         ;;
4271                                 *.obj | *.o)
4272                                         ldopts+=("\[$]1")
4273                                         ;;
4274                                 -Wl,*)
4275                                         for linkarg in \`echo '\[$]1' | sed -e 's/-Wl,//' -e 's/,/ /'\`; do
4276                                                 ldopts+=("\[$]{linkarg}")
4277                                         done
4278                                         ;;
4279                                 *.lib)
4280                                         ldopts+=("\[$]1")
4281                                         ;;
4282                                 -o)
4283                                         shift
4284                                         ldopts+=("-out:\[$]1")
4285                                         ;;
4286                                 *)
4287                                         clopts+=("\[$]1")
4288                                         ldopts+=("\[$]1")
4289                                         ;;
4290                         esac
4291                         shift
4292                 done
4293                 if [[ "\$isdll" -ne 0 ]]; then
4294                         for lib in \[$]{libs[[*]]}; do
4295                                 ldopts+=("\[$]lib.dll.lib")
4296                         done
4297                 else
4298                         for lib in \[$]{libs[[*]]}; do
4299                                 ldopts+=("\[$]lib.lib")
4300                         done
4301                 fi
4302                 cat <<-EOF
4303                 Creating program
4304                 ** ld options:   "\[$]{ldopts[[@]]}"
4305 EOF
4306                 exec \[$]LD \[$]{ldopts[[@]]}
4307 CF_EOF
4308                 chmod +x mk_prog.sh
4309                 LINK_PROGS="$SHELL ${rel_builddir}/mk_prog.sh"
4310                 LINK_TESTS="$SHELL ${rel_builddir}/mk_prog.sh"
4311                 ;;
4312         (mingw*)
4313                 cf_cv_shlib_version=mingw
4314                 cf_cv_shlib_version_infix=mingw
4315                 shlibdir=$bindir
4316                 MAKE_DLLS=
4317                 if test "$DFT_LWR_MODEL" = "shared" ; then
4318                         LOCAL_LDFLAGS="-Wl,--enable-auto-import"
4319                         LOCAL_LDFLAGS2="$LOCAL_LDFLAGS"
4320                         EXTRA_LDFLAGS="-Wl,--enable-auto-import $EXTRA_LDFLAGS"
4321                 fi
4322                 CC_SHARED_OPTS=
4323                 MK_SHARED_LIB=$SHELL' '$rel_builddir'/mk_shared_lib.sh [$]@ [$]{CC} [$]{CFLAGS}'
4324                 RM_SHARED_OPTS="$RM_SHARED_OPTS $rel_builddir/mk_shared_lib.sh *.dll.a"
4325                 cat >mk_shared_lib.sh <<-CF_EOF
4326                 #!$SHELL
4327                 SHARED_LIB=\[$]1
4328                 IMPORT_LIB=\`echo "\[$]1" | sed -e 's/[[0-9]]*\.dll[$]/.dll.a/'\`
4329                 shift
4330                 cat <<-EOF
4331                 Linking shared library
4332                 ** SHARED_LIB \[$]SHARED_LIB
4333                 ** IMPORT_LIB \[$]IMPORT_LIB
4334 EOF
4335                 exec \[$]* ${LDFLAGS} -shared -Wl,--enable-auto-import,--out-implib=\[$]{IMPORT_LIB} -Wl,--export-all-symbols -o \[$]{SHARED_LIB}
4336 CF_EOF
4337                 chmod +x mk_shared_lib.sh
4338                 ;;
4339         (openbsd[[2-9]].*|mirbsd*)
4340                 if test "$DFT_LWR_MODEL" = "shared" && test -n "$LD_RPATH_OPT" ; then
4341                         LOCAL_LDFLAGS="${LD_RPATH_OPT}\$(LOCAL_LIBDIR)"
4342                         LOCAL_LDFLAGS2="$LOCAL_LDFLAGS"
4343                 fi
4344                 if test "$cf_cv_enable_rpath" = yes ; then
4345                         EXTRA_LDFLAGS="${cf_ld_rpath_opt}\${RPATH_LIST} $EXTRA_LDFLAGS"
4346                 fi
4347                 CC_SHARED_OPTS="$CC_SHARED_OPTS -DPIC"
4348                 CF_SHARED_SONAME
4349                 MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -Wl,-Bshareable,-soname,'$cf_cv_shared_soname',-stats,-lc -o $[@]'
4350                 ;;
4351         (nskJ*)
4352                 CC_SHARED_OPTS=
4353                 MK_SHARED_LIB='${LD} -Wshared -Weld=-export_all -o $[@]'
4354                 ;;
4355         (nskL*)
4356                 CC_SHARED_OPTS=
4357                 MK_SHARED_LIB='${LD} -Wshared -Wxld=-export_all -o $[@]'
4358                 ;;
4359         (nto-qnx*|openbsd*|freebsd[[12]].*)
4360                 CC_SHARED_OPTS="$CC_SHARED_OPTS -DPIC"
4361                 MK_SHARED_LIB='${LD} ${LDFLAGS} -Bshareable -o $[@]'
4362                 test "$cf_cv_shlib_version" = auto && cf_cv_shlib_version=rel
4363                 ;;
4364         (dragonfly*|freebsd*)
4365                 CC_SHARED_OPTS="$CC_SHARED_OPTS -DPIC"
4366                 if test "$DFT_LWR_MODEL" = "shared" && test "$cf_cv_enable_rpath" = yes ; then
4367                         LOCAL_LDFLAGS="${cf_ld_rpath_opt}\$(LOCAL_LIBDIR)"
4368                         LOCAL_LDFLAGS2="${cf_ld_rpath_opt}\${RPATH_LIST} $LOCAL_LDFLAGS"
4369                         EXTRA_LDFLAGS="${cf_ld_rpath_opt}\${RPATH_LIST} $EXTRA_LDFLAGS"
4370                 fi
4371                 CF_SHARED_SONAME
4372                 MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -Wl,-soname,'$cf_cv_shared_soname',-stats,-lc -o $[@]'
4373                 ;;
4374         (netbsd*)
4375                 CC_SHARED_OPTS="$CC_SHARED_OPTS -DPIC"
4376                 if test "$DFT_LWR_MODEL" = "shared" && test "$cf_cv_enable_rpath" = yes ; then
4377                         LOCAL_LDFLAGS="${cf_ld_rpath_opt}\$(LOCAL_LIBDIR)"
4378                         LOCAL_LDFLAGS2="$LOCAL_LDFLAGS"
4379                         EXTRA_LDFLAGS="${cf_ld_rpath_opt}\${RPATH_LIST} $EXTRA_LDFLAGS"
4380                         if test "$cf_cv_shlib_version" = auto; then
4381                         if test -f /usr/libexec/ld.elf_so; then
4382                                 cf_cv_shlib_version=abi
4383                         else
4384                                 cf_cv_shlib_version=rel
4385                         fi
4386                         fi
4387                         CF_SHARED_SONAME
4388                         MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -Wl,-soname,'$cf_cv_shared_soname' -o $[@]'
4389                 else
4390                         MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -o $[@]'
4391                 fi
4392                 ;;
4393         (osf*|mls+*)
4394                 # tested with OSF/1 V3.2 and 'cc'
4395                 # tested with OSF/1 V3.2 and gcc 2.6.3 (but the c++ demo didn't
4396                 # link with shared libs).
4397                 MK_SHARED_LIB='${LD} ${LDFLAGS} -set_version ${REL_VERSION}:${ABI_VERSION} -expect_unresolved "*" -shared -soname `basename $[@]`'
4398                 case "$host_os" in
4399                 (osf4*)
4400                         MK_SHARED_LIB="${MK_SHARED_LIB} -msym"
4401                         ;;
4402                 esac
4403                 MK_SHARED_LIB="${MK_SHARED_LIB}"' -o $[@]'
4404                 if test "$DFT_LWR_MODEL" = "shared" && test -n "$LD_RPATH_OPT" ; then
4405                         LOCAL_LDFLAGS="${LD_RPATH_OPT}\$(LOCAL_LIBDIR)"
4406                         LOCAL_LDFLAGS2="$LOCAL_LDFLAGS"
4407                 fi
4408                 cf_cv_rm_so_locs=yes
4409                 ;;
4410         (sco3.2v5*)  # also uw2* and UW7: hops 13-Apr-98
4411                 # tested with osr5.0.5
4412                 if test "$GCC" != yes; then
4413                         CC_SHARED_OPTS='-belf -KPIC'
4414                 fi
4415                 MK_SHARED_LIB='${LD} ${LDFLAGS} -dy -G -h `basename $[@] .${REL_VERSION}`.${ABI_VERSION} -o [$]@'
4416                 if test "$cf_cv_enable_rpath" = yes ; then
4417                         # only way is to set LD_RUN_PATH but no switch for it
4418                         RUN_PATH=$libdir
4419                 fi
4420                 test "$cf_cv_shlib_version" = auto && cf_cv_shlib_version=rel
4421                 LINK_PROGS='LD_RUN_PATH=${libdir}'
4422                 LINK_TESTS='Pwd=`pwd`;LD_RUN_PATH=`dirname $${Pwd}`/lib'
4423                 ;;
4424         (sunos4*)
4425                 # tested with SunOS 4.1.1 and gcc 2.7.0
4426                 if test "$GCC" != yes; then
4427                         CC_SHARED_OPTS='-KPIC'
4428                 fi
4429                 MK_SHARED_LIB='${LD} ${LDFLAGS} -assert pure-text -o $[@]'
4430                 test "$cf_cv_shlib_version" = auto && cf_cv_shlib_version=rel
4431                 ;;
4432         (solaris2*)
4433                 # tested with SunOS 5.5.1 (solaris 2.5.1) and gcc 2.7.2
4434                 # tested with SunOS 5.10 (solaris 10) and gcc 3.4.3
4435                 if test "$DFT_LWR_MODEL" = "shared" ; then
4436                         LOCAL_LDFLAGS="-R \$(LOCAL_LIBDIR):\${libdir}"
4437                         LOCAL_LDFLAGS2="$LOCAL_LDFLAGS"
4438                 fi
4439                 if test "$cf_cv_enable_rpath" = yes ; then
4440                         EXTRA_LDFLAGS="-R \${libdir} $EXTRA_LDFLAGS"
4441                 fi
4442                 CF_SHARED_SONAME
4443                 if test "$GCC" != yes; then
4444                         cf_save_CFLAGS="$CFLAGS"
4445                         for cf_shared_opts in -xcode=pic32 -xcode=pic13 -KPIC -Kpic -O
4446                         do
4447                                 CFLAGS="$cf_shared_opts $cf_save_CFLAGS"
4448                                 AC_TRY_COMPILE([#include <stdio.h>],[printf("Hello\\n");],[break])
4449                         done
4450                         CFLAGS="$cf_save_CFLAGS"
4451                         CC_SHARED_OPTS=$cf_shared_opts
4452                         MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -dy -G -h '$cf_cv_shared_soname' -o $[@]'
4453                 else
4454                         MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -dy -G -h '$cf_cv_shared_soname' -o $[@]'
4455                 fi
4456                 ;;
4457         (sysv5uw7*|unix_sv*)
4458                 # tested with UnixWare 7.1.0 (gcc 2.95.2 and cc)
4459                 if test "$GCC" != yes; then
4460                         CC_SHARED_OPTS='-KPIC'
4461                 fi
4462                 MK_SHARED_LIB='${LD} ${LDFLAGS} -d y -G -o [$]@'
4463                 ;;
4464         (*)
4465                 CC_SHARED_OPTS='unknown'
4466                 MK_SHARED_LIB='echo unknown'
4467                 ;;
4468         esac
4469
4470         # This works if the last tokens in $MK_SHARED_LIB are the -o target.
4471         case "$cf_cv_shlib_version" in
4472         (rel|abi)
4473                 case "$MK_SHARED_LIB" in
4474                 (*'-o $[@]')
4475                         test "$cf_cv_do_symlinks" = no && cf_cv_do_symlinks=yes
4476                         ;;
4477                 (*)
4478                         AC_MSG_WARN(ignored --with-shlib-version)
4479                         ;;
4480                 esac
4481                 ;;
4482         esac
4483
4484         if test -n "$cf_try_cflags"
4485         then
4486 cat > conftest.$ac_ext <<EOF
4487 #line __oline__ "${as_me:-configure}"
4488 #include <stdio.h>
4489 int main(int argc, char *argv[[]])
4490 {
4491         printf("hello\\n");
4492         return (argv[[argc-1]] == 0) ;
4493 }
4494 EOF
4495                 cf_save_CFLAGS="$CFLAGS"
4496                 for cf_opt in $cf_try_cflags
4497                 do
4498                         CFLAGS="$cf_save_CFLAGS -$cf_opt"
4499                         AC_MSG_CHECKING(if CFLAGS option -$cf_opt works)
4500                         if AC_TRY_EVAL(ac_compile); then
4501                                 AC_MSG_RESULT(yes)
4502                                 cf_save_CFLAGS="$CFLAGS"
4503                         else
4504                                 AC_MSG_RESULT(no)
4505                         fi
4506                 done
4507                 CFLAGS="$cf_save_CFLAGS"
4508         fi
4509
4510
4511         # RPATH_LIST is a colon-separated list of directories
4512         test -n "$cf_ld_rpath_opt" && MK_SHARED_LIB="$MK_SHARED_LIB $cf_ld_rpath_opt\${RPATH_LIST}"
4513         test -z "$RPATH_LIST" && RPATH_LIST="\${libdir}"
4514
4515         test "$cf_cv_rm_so_locs" = yes && RM_SHARED_OPTS="$RM_SHARED_OPTS so_locations"
4516
4517         CF_VERBOSE(CC_SHARED_OPTS: $CC_SHARED_OPTS)
4518         CF_VERBOSE(MK_SHARED_LIB:  $MK_SHARED_LIB)
4519
4520         AC_SUBST(CC_SHARED_OPTS)
4521         AC_SUBST(LD_RPATH_OPT)
4522         AC_SUBST(LD_SHARED_OPTS)
4523         AC_SUBST(MK_SHARED_LIB)
4524         AC_SUBST(RM_SHARED_OPTS)
4525
4526         AC_SUBST(LINK_PROGS)
4527         AC_SUBST(LINK_TESTS)
4528
4529         AC_SUBST(EXTRA_LDFLAGS)
4530         AC_SUBST(LOCAL_LDFLAGS)
4531         AC_SUBST(LOCAL_LDFLAGS2)
4532
4533         AC_SUBST(INSTALL_LIB)
4534         AC_SUBST(RPATH_LIST)
4535 ])dnl
4536 dnl ---------------------------------------------------------------------------
4537 dnl CF_SHARED_SONAME version: 3 updated: 2008/09/08 18:34:43
4538 dnl ----------------
4539 dnl utility macro for CF_SHARED_OPTS, constructs "$cf_cv_shared_soname" for
4540 dnl substitution into MK_SHARED_LIB string for the "-soname" (or similar)
4541 dnl option.
4542 dnl
4543 dnl $1 is the default that should be used for "$cf_cv_shlib_version".
4544 dnl If missing, use "rel".
4545 define([CF_SHARED_SONAME],
4546 [
4547         test "$cf_cv_shlib_version" = auto && cf_cv_shlib_version=ifelse($1,,rel,$1)
4548         if test "$cf_cv_shlib_version" = rel; then
4549                 cf_cv_shared_soname='`basename $[@] .${REL_VERSION}`.${ABI_VERSION}'
4550         else
4551                 cf_cv_shared_soname='`basename $[@]`'
4552         fi
4553 ])
4554 dnl ---------------------------------------------------------------------------
4555 dnl CF_STRIP_G_OPT version: 4 updated: 2021/01/02 09:31:20
4556 dnl --------------
4557 dnl     Remove "-g" option from the compiler options
4558 AC_DEFUN([CF_STRIP_G_OPT],
4559 [$1=`echo "${$1}" | CF__SED_TRIMBLANKS(-e 's%-g %%' -e 's%-g$%%')`])dnl
4560 dnl ---------------------------------------------------------------------------
4561 dnl CF_SUBDIR_PATH version: 7 updated: 2014/12/04 04:33:06
4562 dnl --------------
4563 dnl Construct a search-list for a nonstandard header/lib-file
4564 dnl     $1 = the variable to return as result
4565 dnl     $2 = the package name
4566 dnl     $3 = the subdirectory, e.g., bin, include or lib
4567 AC_DEFUN([CF_SUBDIR_PATH],
4568 [
4569 $1=
4570
4571 CF_ADD_SUBDIR_PATH($1,$2,$3,$prefix,NONE)
4572
4573 for cf_subdir_prefix in \
4574         /usr \
4575         /usr/local \
4576         /usr/pkg \
4577         /opt \
4578         /opt/local \
4579         [$]HOME
4580 do
4581         CF_ADD_SUBDIR_PATH($1,$2,$3,$cf_subdir_prefix,$prefix)
4582 done
4583 ])dnl
4584 dnl ---------------------------------------------------------------------------
4585 dnl CF_TERM_HEADER version: 6 updated: 2021/01/02 09:31:20
4586 dnl --------------
4587 dnl Look for term.h, which is part of X/Open curses.  It defines the interface
4588 dnl to terminfo database.  Usually it is in the same include-path as curses.h,
4589 dnl but some packagers change this, breaking various applications.
4590 AC_DEFUN([CF_TERM_HEADER],[
4591 AC_CACHE_CHECK(for terminfo header, cf_cv_term_header,[
4592 case "${cf_cv_ncurses_header}" in
4593 (*/ncurses.h|*/ncursesw.h)
4594         cf_term_header=`echo "$cf_cv_ncurses_header" | sed -e 's%ncurses[[^.]]*\.h$%term.h%'`
4595         ;;
4596 (*)
4597         cf_term_header=term.h
4598         ;;
4599 esac
4600
4601 for cf_test in $cf_term_header "ncurses/term.h" "ncursesw/term.h"
4602 do
4603 AC_TRY_COMPILE([#include <stdio.h>
4604 #include <${cf_cv_ncurses_header:-curses.h}>
4605 #include <$cf_test>
4606 ],[int x = auto_left_margin; (void)x],[
4607         cf_cv_term_header="$cf_test"],[
4608         cf_cv_term_header=unknown
4609         ])
4610         test "$cf_cv_term_header" != unknown && break
4611 done
4612 ])
4613
4614 # Set definitions to allow ifdef'ing to accommodate subdirectories
4615
4616 case "$cf_cv_term_header" in
4617 (*term.h)
4618         AC_DEFINE(HAVE_TERM_H,1,[Define to 1 if we have term.h])
4619         ;;
4620 esac
4621
4622 case "$cf_cv_term_header" in
4623 (ncurses/term.h)
4624         AC_DEFINE(HAVE_NCURSES_TERM_H,1,[Define to 1 if we have ncurses/term.h])
4625         ;;
4626 (ncursesw/term.h)
4627         AC_DEFINE(HAVE_NCURSESW_TERM_H,1,[Define to 1 if we have ncursesw/term.h])
4628         ;;
4629 esac
4630 ])dnl
4631 dnl ---------------------------------------------------------------------------
4632 dnl CF_TOP_BUILDDIR version: 2 updated: 2013/07/27 17:38:32
4633 dnl ---------------
4634 dnl Define a top_builddir symbol, for applications that need an absolute path.
4635 AC_DEFUN([CF_TOP_BUILDDIR],
4636 [
4637 top_builddir=ifelse($1,,`pwd`,$1)
4638 AC_SUBST(top_builddir)
4639 ])dnl
4640 dnl ---------------------------------------------------------------------------
4641 dnl CF_TRY_XOPEN_SOURCE version: 4 updated: 2022/09/10 15:16:16
4642 dnl -------------------
4643 dnl If _XOPEN_SOURCE is not defined in the compile environment, check if we
4644 dnl can define it successfully.
4645 AC_DEFUN([CF_TRY_XOPEN_SOURCE],[
4646 AC_CACHE_CHECK(if we should define _XOPEN_SOURCE,cf_cv_xopen_source,[
4647         AC_TRY_COMPILE(CF__XOPEN_SOURCE_HEAD,CF__XOPEN_SOURCE_BODY,
4648         [cf_cv_xopen_source=no],
4649         [cf_save="$CPPFLAGS"
4650          CF_APPEND_TEXT(CPPFLAGS,-D_XOPEN_SOURCE=$cf_XOPEN_SOURCE)
4651          AC_TRY_COMPILE(CF__XOPEN_SOURCE_HEAD,CF__XOPEN_SOURCE_BODY,
4652                 [cf_cv_xopen_source=no],
4653                 [cf_cv_xopen_source=$cf_XOPEN_SOURCE])
4654                 CPPFLAGS="$cf_save"
4655         ])
4656 ])
4657
4658 if test "$cf_cv_xopen_source" != no ; then
4659         CF_REMOVE_DEFINE(CFLAGS,$CFLAGS,_XOPEN_SOURCE)
4660         CF_REMOVE_DEFINE(CPPFLAGS,$CPPFLAGS,_XOPEN_SOURCE)
4661         cf_temp_xopen_source="-D_XOPEN_SOURCE=$cf_cv_xopen_source"
4662         CF_APPEND_CFLAGS($cf_temp_xopen_source)
4663 fi
4664 ])
4665 dnl ---------------------------------------------------------------------------
4666 dnl CF_UPPER version: 5 updated: 2001/01/29 23:40:59
4667 dnl --------
4668 dnl Make an uppercase version of a variable
4669 dnl $1=uppercase($2)
4670 AC_DEFUN([CF_UPPER],
4671 [
4672 $1=`echo "$2" | sed y%abcdefghijklmnopqrstuvwxyz./-%ABCDEFGHIJKLMNOPQRSTUVWXYZ___%`
4673 ])dnl
4674 dnl ---------------------------------------------------------------------------
4675 dnl CF_UTF8_LIB version: 10 updated: 2023/01/11 04:05:23
4676 dnl -----------
4677 dnl Check for multibyte support, and if not found, utf8 compatibility library
4678 AC_DEFUN([CF_UTF8_LIB],
4679 [
4680 AC_HAVE_HEADERS(wchar.h)
4681 AC_CACHE_CHECK(for multibyte character support,cf_cv_utf8_lib,[
4682         cf_save_LIBS="$LIBS"
4683         AC_TRY_LINK([
4684 $ac_includes_default
4685 #ifdef HAVE_WCHAR_H
4686 #include <wchar.h>
4687 #endif
4688 ],[putwc(0,0);],
4689         [cf_cv_utf8_lib=yes],
4690         [CF_FIND_LINKAGE([
4691 #include <libutf8.h>],[putwc(0,0);],utf8,
4692                 [cf_cv_utf8_lib=add-on],
4693                 [cf_cv_utf8_lib=no])
4694 ])])
4695
4696 # HAVE_LIBUTF8_H is used by ncurses if curses.h is shared between
4697 # ncurses/ncursesw:
4698 if test "$cf_cv_utf8_lib" = "add-on" ; then
4699         AC_DEFINE(HAVE_LIBUTF8_H,1,[Define to 1 if we should include libutf8.h])
4700         CF_ADD_INCDIR($cf_cv_header_path_utf8)
4701         CF_ADD_LIBDIR($cf_cv_library_path_utf8)
4702         CF_ADD_LIBS($cf_cv_library_file_utf8)
4703 fi
4704 ])dnl
4705 dnl ---------------------------------------------------------------------------
4706 dnl CF_VERBOSE version: 3 updated: 2007/07/29 09:55:12
4707 dnl ----------
4708 dnl Use AC_VERBOSE w/o the warnings
4709 AC_DEFUN([CF_VERBOSE],
4710 [test -n "$verbose" && echo "   $1" 1>&AC_FD_MSG
4711 CF_MSG_LOG([$1])
4712 ])dnl
4713 dnl ---------------------------------------------------------------------------
4714 dnl CF_WEAK_SYMBOLS version: 1 updated: 2008/08/16 19:18:06
4715 dnl ---------------
4716 dnl Check for compiler-support for weak symbols.
4717 dnl This works with "recent" gcc.
4718 AC_DEFUN([CF_WEAK_SYMBOLS],[
4719 AC_CACHE_CHECK(if $CC supports weak symbols,cf_cv_weak_symbols,[
4720
4721 AC_TRY_COMPILE([
4722 #include <stdio.h>],
4723 [
4724 #if defined(__GNUC__)
4725 #  if defined __USE_ISOC99
4726 #    define _cat_pragma(exp)    _Pragma(#exp)
4727 #    define _weak_pragma(exp)   _cat_pragma(weak name)
4728 #  else
4729 #    define _weak_pragma(exp)
4730 #  endif
4731 #  define _declare(name)        __extension__ extern __typeof__(name) name
4732 #  define weak_symbol(name)     _weak_pragma(name) _declare(name) __attribute__((weak))
4733 #endif
4734
4735 weak_symbol(fopen);
4736 ],[cf_cv_weak_symbols=yes],[cf_cv_weak_symbols=no])
4737 ])
4738 ])dnl
4739 dnl ---------------------------------------------------------------------------
4740 dnl CF_WITH_ADA_COMPILER version: 3 updated: 2023/10/28 11:59:01
4741 dnl --------------------
4742 dnl Command-line option to specify the Ada95 compiler.
4743 AC_DEFUN([CF_WITH_ADA_COMPILER],[
4744 AC_MSG_CHECKING(for Ada95 compiler)
4745 AC_ARG_WITH(ada-compiler,
4746         [[  --with-ada-compiler[=CMD] use CMD as Ada95 compiler (default: gnatmake)]],
4747         [cf_ada_compiler=$withval],
4748         [cf_ada_compiler=gnatmake])
4749 AC_SUBST(cf_ada_compiler)
4750 AC_MSG_RESULT($cf_ada_compiler)
4751 ])dnl
4752 dnl ---------------------------------------------------------------------------
4753 dnl CF_WITH_ADA_INCLUDE version: 3 updated: 2023/10/28 11:59:01
4754 dnl -------------------
4755 dnl Command-line option to specify where Ada includes will install.
4756 AC_DEFUN([CF_WITH_ADA_INCLUDE],[
4757 AC_MSG_CHECKING(for Ada95 include directory)
4758 CF_WITH_PATH(ada-include,
4759    [  --with-ada-include=DIR  find Ada95 includes in DIR],
4760    ADA_INCLUDE,
4761    PREFIX/share/ada/adainclude,
4762    [$]prefix/share/ada/adainclude)
4763 AC_SUBST(ADA_INCLUDE)
4764 AC_MSG_RESULT($ADA_INCLUDE)
4765 ])dnl
4766 dnl ---------------------------------------------------------------------------
4767 dnl CF_WITH_ADA_LIBNAME version: 2 updated: 2023/10/28 11:59:01
4768 dnl -------------------
4769 dnl CF_WITH_ADA_LIBNAME
4770 dnl -------------------
4771 dnl Command-line option to specify how to name the resulting Ada library.
4772 dnl $1 = default value
4773 AC_DEFUN([CF_WITH_ADA_LIBNAME],[
4774 AC_MSG_CHECKING(for Ada95 curses library name)
4775 AC_ARG_WITH(ada-libname,
4776    [  --with-ada-libname=XXX  use XXX as Ada95 library name],
4777    ADA_LIBNAME=[$]withval,
4778    ADA_LIBNAME=$1)
4779 case "x$ADA_LIBNAME" in
4780 (x|xyes|xno)
4781         ADA_LIBNAME=$1
4782         ;;
4783 esac
4784 AC_SUBST(ADA_LIBNAME)
4785 AC_MSG_RESULT($ADA_LIBNAME)
4786 ])dnl
4787 dnl ---------------------------------------------------------------------------
4788 dnl CF_WITH_ADA_OBJECTS version: 3 updated: 2023/10/28 11:59:01
4789 dnl -------------------
4790 dnl Command-line option to specify where Ada objects will install.
4791 AC_DEFUN([CF_WITH_ADA_OBJECTS],[
4792 AC_MSG_CHECKING(for Ada95 object directory)
4793 CF_WITH_PATH(ada-objects,
4794    [  --with-ada-objects=DIR  find Ada95 objects in DIR],
4795    ADA_OBJECTS,
4796    PREFIX/lib/ada/adalib,
4797    [$]prefix/lib/ada/adalib)
4798 AC_SUBST(ADA_OBJECTS)
4799 AC_MSG_RESULT($ADA_OBJECTS)
4800 ])dnl
4801 dnl ---------------------------------------------------------------------------
4802 dnl CF_WITH_ADA_SHAREDLIB version: 6 updated: 2023/10/28 11:59:01
4803 dnl ---------------------
4804 dnl Command-line option to specify if an Ada95 shared library should be built,
4805 dnl and optionally what its soname should be.
4806 AC_DEFUN([CF_WITH_ADA_SHAREDLIB],[
4807 AC_REQUIRE([CF_GNAT_PROJECTS])
4808 AC_MSG_CHECKING(whether to build an Ada95 shared library)
4809 AC_ARG_WITH(ada-sharedlib,
4810         [  --with-ada-sharedlib    build Ada95 shared library; requires GNAT project support],
4811         [with_ada_sharedlib=$withval],
4812         [with_ada_sharedlib=no])
4813 cf_ada_sharedlib_warn=no
4814
4815 if test "x$with_ada_sharedlib" != xno
4816 then
4817         if test "x$cf_gnat_projects" != xyes
4818         then
4819                 with_ada_sharedlib=no
4820                 cf_ada_sharedlib_warn=yes
4821         fi
4822 fi
4823
4824 AC_MSG_RESULT($with_ada_sharedlib)
4825 if test "x$cf_ada_sharedlib_warn" != xno
4826 then
4827         AC_MSG_WARN(disabling Ada95 shared library since GNAT projects are not supported)
4828 fi
4829
4830 ADA_SHAREDLIB='lib$(LIB_NAME).so.1'
4831 MAKE_ADA_SHAREDLIB="#"
4832
4833 if test "x$with_ada_sharedlib" != xno
4834 then
4835         MAKE_ADA_SHAREDLIB=
4836         if test "x$with_ada_sharedlib" != xyes
4837         then
4838                 ADA_SHAREDLIB="$with_ada_sharedlib"
4839         fi
4840 fi
4841
4842 AC_SUBST(ADA_SHAREDLIB)
4843 AC_SUBST(MAKE_ADA_SHAREDLIB)
4844 ])dnl
4845 dnl ---------------------------------------------------------------------------
4846 dnl CF_WITH_CURSES_DIR version: 4 updated: 2021/01/02 19:22:58
4847 dnl ------------------
4848 dnl Wrapper for AC_ARG_WITH to specify directory under which to look for curses
4849 dnl libraries.
4850 AC_DEFUN([CF_WITH_CURSES_DIR],[
4851
4852 AC_MSG_CHECKING(for specific curses-directory)
4853 AC_ARG_WITH(curses-dir,
4854         [  --with-curses-dir=DIR   directory in which (n)curses is installed],
4855         [cf_cv_curses_dir=$withval],
4856         [cf_cv_curses_dir=no])
4857 AC_MSG_RESULT($cf_cv_curses_dir)
4858
4859 if test -n "$cf_cv_curses_dir" && test "$cf_cv_curses_dir" != "no"
4860 then
4861         CF_PATH_SYNTAX(withval)
4862         if test -d "$cf_cv_curses_dir"
4863         then
4864                 CF_ADD_INCDIR($cf_cv_curses_dir/include)
4865                 CF_ADD_LIBDIR($cf_cv_curses_dir/lib)
4866         fi
4867 fi
4868 ])dnl
4869 dnl ---------------------------------------------------------------------------
4870 dnl CF_WITH_LIB_PREFIX version: 2 updated: 2021/01/01 16:53:59
4871 dnl ------------------
4872 dnl Allow the library-prefix to be overridden.  OS/2 EMX originally had no
4873 dnl "lib" prefix, e.g., because it used the dll naming convention.
4874 dnl
4875 dnl $1 = variable to set
4876 AC_DEFUN([CF_WITH_LIB_PREFIX],
4877 [
4878 AC_MSG_CHECKING(if you want to have a library-prefix)
4879 AC_ARG_WITH(lib-prefix,
4880         [  --with-lib-prefix       override library-prefix],
4881         [with_lib_prefix=$withval],
4882         [with_lib_prefix=auto])
4883 AC_MSG_RESULT($with_lib_prefix)
4884
4885 if test "$with_lib_prefix" = auto
4886 then
4887         CF_LIB_PREFIX($1)
4888 elif test "$with_lib_prefix" = no
4889 then
4890         LIB_PREFIX=
4891 else
4892         LIB_PREFIX=$with_lib_prefix
4893 fi
4894 ])dnl
4895 dnl ---------------------------------------------------------------------------
4896 dnl CF_WITH_PATH version: 12 updated: 2021/09/04 06:35:04
4897 dnl ------------
4898 dnl Wrapper for AC_ARG_WITH to ensure that user supplies a pathname, not just
4899 dnl defaulting to yes/no.
4900 dnl
4901 dnl $1 = option name
4902 dnl $2 = help-text
4903 dnl $3 = environment variable to set
4904 dnl $4 = default value, shown in the help-message, must be a constant
4905 dnl $5 = default value, if it is an expression & cannot be in the help-message
4906 dnl
4907 AC_DEFUN([CF_WITH_PATH],
4908 [AC_ARG_WITH($1,[$2 ](default: ifelse([$4],,empty,[$4])),,
4909 ifelse([$4],,[withval="${$3}"],[withval="${$3:-ifelse([$5],,[$4],[$5])}"]))dnl
4910 if ifelse([$5],,true,[test -n "$5"]) ; then
4911 CF_PATH_SYNTAX(withval)
4912 fi
4913 eval $3="$withval"
4914 AC_SUBST($3)dnl
4915 ])dnl
4916 dnl ---------------------------------------------------------------------------
4917 dnl CF_WITH_PKG_CONFIG_LIBDIR version: 21 updated: 2023/01/22 13:37:42
4918 dnl -------------------------
4919 dnl Allow the choice of the pkg-config library directory to be overridden.
4920 dnl
4921 dnl pkg-config uses a search-list built from these colon-separated lists of
4922 dnl directories:
4923 dnl a) $PKG_CONFIG_PATH (tested first, added if set)
4924 dnl b) $PKG_CONFIG_LIBDIR (tested second, added if set)
4925 dnl c) builtin-list (added if $PKG_CONFIG_LIBDIR is not set)
4926 dnl
4927 dnl pkgconf (used with some systems such as FreeBSD in place of pkg-config)
4928 dnl optionally ignores $PKG_CONFIG_LIBDIR.  Very old versions of pkg-config,
4929 dnl e.g., Solaris 10 also do not recognize $PKG_CONFIG_LIBDIR.
4930 AC_DEFUN([CF_WITH_PKG_CONFIG_LIBDIR],[
4931
4932 case "$PKG_CONFIG" in
4933 (no|none|yes)
4934         AC_MSG_CHECKING(for pkg-config library directory)
4935         ;;
4936 (*)
4937         AC_MSG_CHECKING(for $PKG_CONFIG library directory)
4938         ;;
4939 esac
4940
4941 # if $PKG_CONFIG_LIBDIR is set, try to use that
4942 if test -n "$PKG_CONFIG_PATH"; then
4943         cf_search_path=`echo "$PKG_CONFIG_PATH" | sed -e 's/:/ /g' -e 's,^[[    ]]*,,' -e 's,[[         ]]*$,,'`
4944 elif test -n "$PKG_CONFIG_LIBDIR"; then
4945         cf_search_path=`echo "$PKG_CONFIG_LIBDIR" | sed -e 's/:/ /g' -e 's,^[[  ]]*,,' -e 's,[[         ]]*$,,'`
4946 else
4947         cf_search_path=auto
4948 fi
4949
4950 # if the option is used, let that override.  otherwise default to "libdir"
4951 AC_ARG_WITH(pkg-config-libdir,
4952         [  --with-pkg-config-libdir=XXX use given directory for installing pc-files],
4953         [cf_search_path=$withval],
4954         [test "x$PKG_CONFIG" != xnone && test -z "$cf_search_path" && cf_search_path=libdir])
4955
4956 case "x$cf_search_path" in
4957 (xlibdir)
4958         PKG_CONFIG_LIBDIR='${libdir}/pkgconfig'
4959         AC_MSG_RESULT($PKG_CONFIG_LIBDIR)
4960         cf_search_path=
4961         ;;
4962 (x)
4963         ;;
4964 (x/*\ *)
4965         PKG_CONFIG_LIBDIR=
4966         ;;
4967 (x/*)
4968         PKG_CONFIG_LIBDIR="$cf_search_path"
4969         AC_MSG_RESULT($PKG_CONFIG_LIBDIR)
4970         cf_search_path=
4971         ;;
4972 (xyes|xauto)
4973         AC_MSG_RESULT(auto)
4974         cf_search_path=
4975         # Look for the library directory using the same prefix as the executable
4976         AC_MSG_CHECKING(for search-list)
4977         if test "x$PKG_CONFIG" != xnone
4978         then
4979                 # works for pkg-config since version 0.24 (2009)
4980                 # works for pkgconf since version 0.8.3 (2012)
4981                 for cf_pkg_program in \
4982                         `echo "$PKG_CONFIG" | sed -e 's,^.*/,,'` \
4983                         pkg-config \
4984                         pkgconf
4985                 do
4986                         cf_search_path=`"$PKG_CONFIG" --variable=pc_path "$cf_pkg_program" 2>/dev/null | tr : ' '`
4987                         test -n "$cf_search_path" && break
4988                 done
4989
4990                 # works for pkg-config since import in 2005 of original 2001 HP code.
4991                 test -z "$cf_search_path" && \
4992                 cf_search_path=`
4993                 "$PKG_CONFIG" --debug --exists no-such-package 2>&1 | $AWK "\
4994 /^Scanning directory (#[1-9][0-9]* )?'.*'$/{ \
4995         sub(\"^[[^']]*'\",\"\"); \
4996         sub(\"'.*\",\"\"); \
4997         printf \" %s\", \\[$]0; } \
4998 { next; } \
4999 "`
5000         fi
5001
5002         AC_MSG_RESULT($cf_search_path)
5003         ;;
5004 (*)
5005         AC_MSG_ERROR(Unexpected option value: $cf_search_path)
5006         ;;
5007 esac
5008
5009 if test -n "$cf_search_path"
5010 then
5011         AC_MSG_CHECKING(for first directory)
5012         cf_pkg_config_path=none
5013         for cf_config in $cf_search_path
5014         do
5015                 if test -d "$cf_config"
5016                 then
5017                         cf_pkg_config_path=$cf_config
5018                         break
5019                 fi
5020         done
5021         AC_MSG_RESULT($cf_pkg_config_path)
5022
5023         if test "x$cf_pkg_config_path" != xnone ; then
5024                 # limit this to the first directory found
5025                 PKG_CONFIG_LIBDIR="$cf_pkg_config_path"
5026         fi
5027
5028         if test -z "$PKG_CONFIG_LIBDIR" && test -n "$cf_search_path"
5029         then
5030                 AC_MSG_CHECKING(for workaround)
5031                 if test "$prefix" = "NONE" ; then
5032                         cf_prefix="$ac_default_prefix"
5033                 else
5034                         cf_prefix="$prefix"
5035                 fi
5036                 eval cf_libdir=$libdir
5037                 cf_libdir=`echo "$cf_libdir" | sed -e "s,^NONE,$cf_prefix,"`
5038                 cf_backup=
5039                 for cf_config in $cf_search_path
5040                 do
5041                         case $cf_config in
5042                         $cf_libdir/pkgconfig)
5043                                 PKG_CONFIG_LIBDIR=$cf_libdir/pkgconfig
5044                                 break
5045                                 ;;
5046                         *)
5047                                 test -z "$cf_backup" && cf_backup=$cf_config
5048                                 ;;
5049                         esac
5050                 done
5051                 test -z "$PKG_CONFIG_LIBDIR" && PKG_CONFIG_LIBDIR=$cf_backup
5052                 AC_MSG_RESULT($PKG_CONFIG_LIBDIR)
5053         fi
5054 fi
5055
5056 AC_SUBST(PKG_CONFIG_LIBDIR)
5057 ])dnl
5058 dnl ---------------------------------------------------------------------------
5059 dnl CF_WITH_PTHREAD version: 7 updated: 2015/04/18 08:56:57
5060 dnl ---------------
5061 dnl Check for POSIX thread library.
5062 AC_DEFUN([CF_WITH_PTHREAD],
5063 [
5064 AC_MSG_CHECKING(if you want to link with the pthread library)
5065 AC_ARG_WITH(pthread,
5066         [  --with-pthread          use POSIX thread library],
5067         [with_pthread=$withval],
5068         [with_pthread=no])
5069 AC_MSG_RESULT($with_pthread)
5070
5071 if test "$with_pthread" != no ; then
5072         AC_CHECK_HEADER(pthread.h,[
5073         AC_DEFINE(HAVE_PTHREADS_H,1,[Define to 1 if we have pthreads.h header])
5074
5075         for cf_lib_pthread in pthread c_r
5076         do
5077             AC_MSG_CHECKING(if we can link with the $cf_lib_pthread library)
5078             cf_save_LIBS="$LIBS"
5079             CF_ADD_LIB($cf_lib_pthread)
5080             AC_TRY_LINK([
5081 #include <pthread.h>
5082 ],[
5083                 int rc = pthread_create(0,0,0,0);
5084                 int r2 = pthread_mutexattr_settype(0, 0);
5085 ],[with_pthread=yes],[with_pthread=no])
5086             LIBS="$cf_save_LIBS"
5087             AC_MSG_RESULT($with_pthread)
5088             test "$with_pthread" = yes && break
5089         done
5090
5091         if test "$with_pthread" = yes ; then
5092             CF_ADD_LIB($cf_lib_pthread)
5093             AC_DEFINE(HAVE_LIBPTHREADS,1,[Define to 1 if we have pthreads library])
5094         else
5095             AC_MSG_ERROR(Cannot link with pthread library)
5096         fi
5097         ])
5098 fi
5099 ])
5100 dnl ---------------------------------------------------------------------------
5101 dnl CF_WITH_SYSTYPE version: 1 updated: 2013/01/26 16:26:12
5102 dnl ---------------
5103 dnl For testing, override the derived host system-type which is used to decide
5104 dnl things such as the linker commands used to build shared libraries.  This is
5105 dnl normally chosen automatically based on the type of system which you are
5106 dnl building on.  We use it for testing the configure script.
5107 dnl
5108 dnl This is different from the --host option: it is used only for testing parts
5109 dnl of the configure script which would not be reachable with --host since that
5110 dnl relies on the build environment being real, rather than mocked up.
5111 AC_DEFUN([CF_WITH_SYSTYPE],[
5112 CF_CHECK_CACHE([AC_CANONICAL_SYSTEM])
5113 AC_ARG_WITH(system-type,
5114         [  --with-system-type=XXX  test: override derived host system-type],
5115 [AC_MSG_WARN(overriding system type to $withval)
5116         cf_cv_system_name=$withval
5117         host_os=$withval
5118 ])
5119 ])dnl
5120 dnl ---------------------------------------------------------------------------
5121 dnl CF_XOPEN_SOURCE version: 67 updated: 2023/09/06 18:55:27
5122 dnl ---------------
5123 dnl Try to get _XOPEN_SOURCE defined properly that we can use POSIX functions,
5124 dnl or adapt to the vendor's definitions to get equivalent functionality,
5125 dnl without losing the common non-POSIX features.
5126 dnl
5127 dnl Parameters:
5128 dnl     $1 is the nominal value for _XOPEN_SOURCE
5129 dnl     $2 is the nominal value for _POSIX_C_SOURCE
5130 dnl
5131 dnl The default case prefers _XOPEN_SOURCE over _POSIX_C_SOURCE if the
5132 dnl implementation predefines it, because X/Open and most implementations agree
5133 dnl that the latter is a legacy or "aligned" value.
5134 dnl
5135 dnl Because _XOPEN_SOURCE is preferred, if defining _POSIX_C_SOURCE turns
5136 dnl that off, then refrain from setting _POSIX_C_SOURCE explicitly.
5137 dnl
5138 dnl References:
5139 dnl https://pubs.opengroup.org/onlinepubs/007904975/functions/xsh_chap02_02.html
5140 dnl https://docs.oracle.com/cd/E19253-01/816-5175/standards-5/index.html
5141 dnl https://www.gnu.org/software/libc/manual/html_node/Feature-Test-Macros.html
5142 AC_DEFUN([CF_XOPEN_SOURCE],[
5143 AC_REQUIRE([AC_CANONICAL_HOST])
5144 AC_REQUIRE([CF_POSIX_VISIBLE])
5145
5146 if test "$cf_cv_posix_visible" = no; then
5147
5148 cf_XOPEN_SOURCE=ifelse([$1],,500,[$1])
5149 cf_POSIX_C_SOURCE=ifelse([$2],,199506L,[$2])
5150 cf_xopen_source=
5151
5152 case "$host_os" in
5153 (aix[[4-7]]*)
5154         cf_xopen_source="-D_ALL_SOURCE"
5155         ;;
5156 (darwin[[0-8]].*)
5157         cf_xopen_source="-D_APPLE_C_SOURCE"
5158         ;;
5159 (darwin*)
5160         cf_xopen_source="-D_DARWIN_C_SOURCE"
5161         cf_XOPEN_SOURCE=
5162         ;;
5163 (freebsd*|dragonfly*|midnightbsd*)
5164         # 5.x headers associate
5165         #       _XOPEN_SOURCE=600 with _POSIX_C_SOURCE=200112L
5166         #       _XOPEN_SOURCE=500 with _POSIX_C_SOURCE=199506L
5167         cf_POSIX_C_SOURCE=200112L
5168         cf_XOPEN_SOURCE=600
5169         cf_xopen_source="-D_BSD_TYPES -D__BSD_VISIBLE -D_POSIX_C_SOURCE=$cf_POSIX_C_SOURCE -D_XOPEN_SOURCE=$cf_XOPEN_SOURCE"
5170         ;;
5171 (hpux11*)
5172         cf_xopen_source="-D_HPUX_SOURCE -D_XOPEN_SOURCE=500"
5173         ;;
5174 (hpux*)
5175         cf_xopen_source="-D_HPUX_SOURCE"
5176         ;;
5177 (irix[[56]].*)
5178         cf_xopen_source="-D_SGI_SOURCE"
5179         cf_XOPEN_SOURCE=
5180         ;;
5181 (linux*gnu|linux*gnuabi64|linux*gnuabin32|linux*gnueabi|linux*gnueabihf|linux*gnux32|uclinux*|gnu*|mint*|k*bsd*-gnu|cygwin|msys|mingw*|linux*uclibc)
5182         CF_GNU_SOURCE($cf_XOPEN_SOURCE)
5183         ;;
5184 (minix*)
5185         cf_xopen_source="-D_NETBSD_SOURCE" # POSIX.1-2001 features are ifdef'd with this...
5186         ;;
5187 (mirbsd*)
5188         # setting _XOPEN_SOURCE or _POSIX_SOURCE breaks <sys/select.h> and other headers which use u_int / u_short types
5189         cf_XOPEN_SOURCE=
5190         CF_POSIX_C_SOURCE($cf_POSIX_C_SOURCE)
5191         ;;
5192 (netbsd*)
5193         cf_xopen_source="-D_NETBSD_SOURCE" # setting _XOPEN_SOURCE breaks IPv6 for lynx on NetBSD 1.6, breaks xterm, is not needed for ncursesw
5194         ;;
5195 (openbsd[[6-9]]*)
5196         # OpenBSD 6.x has broken locale support, both compile-time and runtime.
5197         # see https://www.mail-archive.com/bugs@openbsd.org/msg13200.html
5198         # Abusing the conformance level is a workaround.
5199         AC_MSG_WARN(this system does not provide usable locale support)
5200         cf_xopen_source="-D_BSD_SOURCE"
5201         cf_XOPEN_SOURCE=700
5202         ;;
5203 (openbsd[[4-5]]*)
5204         # setting _XOPEN_SOURCE lower than 500 breaks g++ compile with wchar.h, needed for ncursesw
5205         cf_xopen_source="-D_BSD_SOURCE"
5206         cf_XOPEN_SOURCE=600
5207         ;;
5208 (openbsd*)
5209         # setting _XOPEN_SOURCE breaks xterm on OpenBSD 2.8, is not needed for ncursesw
5210         ;;
5211 (osf[[45]]*)
5212         cf_xopen_source="-D_OSF_SOURCE"
5213         ;;
5214 (nto-qnx*)
5215         cf_xopen_source="-D_QNX_SOURCE"
5216         ;;
5217 (sco*)
5218         # setting _XOPEN_SOURCE breaks Lynx on SCO Unix / OpenServer
5219         ;;
5220 (solaris2.*)
5221         cf_xopen_source="-D__EXTENSIONS__"
5222         cf_cv_xopen_source=broken
5223         ;;
5224 (sysv4.2uw2.*) # Novell/SCO UnixWare 2.x (tested on 2.1.2)
5225         cf_XOPEN_SOURCE=
5226         cf_POSIX_C_SOURCE=
5227         ;;
5228 (*)
5229         CF_TRY_XOPEN_SOURCE
5230         cf_save_xopen_cppflags="$CPPFLAGS"
5231         CF_POSIX_C_SOURCE($cf_POSIX_C_SOURCE)
5232         # Some of these niche implementations use copy/paste, double-check...
5233         if test "$cf_cv_xopen_source" = no ; then
5234                 CF_VERBOSE(checking if _POSIX_C_SOURCE interferes with _XOPEN_SOURCE)
5235                 AC_TRY_COMPILE(CF__XOPEN_SOURCE_HEAD,CF__XOPEN_SOURCE_BODY,,[
5236                         AC_MSG_WARN(_POSIX_C_SOURCE definition is not usable)
5237                         CPPFLAGS="$cf_save_xopen_cppflags"])
5238         fi
5239         ;;
5240 esac
5241
5242 if test -n "$cf_xopen_source" ; then
5243         CF_APPEND_CFLAGS($cf_xopen_source,true)
5244 fi
5245
5246 dnl In anything but the default case, we may have system-specific setting
5247 dnl which is still not guaranteed to provide all of the entrypoints that
5248 dnl _XOPEN_SOURCE would yield.
5249 if test -n "$cf_XOPEN_SOURCE" && test -z "$cf_cv_xopen_source" ; then
5250         AC_MSG_CHECKING(if _XOPEN_SOURCE really is set)
5251         AC_TRY_COMPILE([#include <stdlib.h>],[
5252 #ifndef _XOPEN_SOURCE
5253 #error _XOPEN_SOURCE is not defined
5254 #endif],
5255         [cf_XOPEN_SOURCE_set=yes],
5256         [cf_XOPEN_SOURCE_set=no])
5257         AC_MSG_RESULT($cf_XOPEN_SOURCE_set)
5258         if test "$cf_XOPEN_SOURCE_set" = yes
5259         then
5260                 AC_TRY_COMPILE([#include <stdlib.h>],[
5261 #if (_XOPEN_SOURCE - 0) < $cf_XOPEN_SOURCE
5262 #error (_XOPEN_SOURCE - 0) < $cf_XOPEN_SOURCE
5263 #endif],
5264                 [cf_XOPEN_SOURCE_set_ok=yes],
5265                 [cf_XOPEN_SOURCE_set_ok=no])
5266                 if test "$cf_XOPEN_SOURCE_set_ok" = no
5267                 then
5268                         AC_MSG_WARN(_XOPEN_SOURCE is lower than requested)
5269                 fi
5270         else
5271                 CF_TRY_XOPEN_SOURCE
5272         fi
5273 fi
5274 fi # cf_cv_posix_visible
5275 ])
5276 dnl ---------------------------------------------------------------------------
5277 dnl CF__SED_TRIMBLANKS version: 1 updated: 2021/01/02 09:31:20
5278 dnl ------------------
5279 dnl Trim something using sed, then trim extra whitespace
5280 dnl $1 = extra parameters, e.g., in CF_STRIP_G_OPT
5281 define([CF__SED_TRIMBLANKS],[sed ifelse($1,,,[$1] )-e 's%[[     ]]% %g' -e 's% [[ ]]*% %g' -e 's%^ %%' -e 's% [$]%%'])dnl
5282 dnl ---------------------------------------------------------------------------
5283 dnl CF__XOPEN_SOURCE_BODY version: 2 updated: 2023/02/18 17:41:25
5284 dnl ---------------------
5285 dnl body of test when test-compiling for _XOPEN_SOURCE check
5286 define([CF__XOPEN_SOURCE_BODY],
5287 [
5288 #ifndef _XOPEN_SOURCE
5289 #error _XOPEN_SOURCE is not defined
5290 #endif
5291 ])
5292 dnl ---------------------------------------------------------------------------
5293 dnl CF__XOPEN_SOURCE_HEAD version: 2 updated: 2023/02/18 17:41:25
5294 dnl ---------------------
5295 dnl headers to include when test-compiling for _XOPEN_SOURCE check
5296 define([CF__XOPEN_SOURCE_HEAD],
5297 [
5298 $ac_includes_default
5299 ])