1 dnl***************************************************************************
2 dnl Copyright (c) 2010-2018,2019 Free Software Foundation, Inc. *
4 dnl Permission is hereby granted, free of charge, to any person obtaining a *
5 dnl copy of this software and associated documentation files (the *
6 dnl "Software"), to deal in the Software without restriction, including *
7 dnl without limitation the rights to use, copy, modify, merge, publish, *
8 dnl distribute, distribute with modifications, sublicense, and/or sell *
9 dnl copies of the Software, and to permit persons to whom the Software is *
10 dnl furnished to do so, subject to the following conditions: *
12 dnl The above copyright notice and this permission notice shall be included *
13 dnl in all copies or substantial portions of the Software. *
15 dnl THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
16 dnl OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
17 dnl MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
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19 dnl DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
20 dnl OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
21 dnl THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
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25 dnl sale, use or other dealings in this Software without prior written *
27 dnl***************************************************************************
29 dnl Author: Thomas E. Dickey
31 dnl $Id: aclocal.m4,v 1.148 2019/12/31 14:00:55 tom Exp $
32 dnl Macros used in NCURSES Ada95 auto-configuration script.
34 dnl These macros are maintained separately from NCURSES. The copyright on
35 dnl this file applies to the aggregation of macros and does not affect use of
36 dnl these macros in other applications.
38 dnl See https://invisible-island.net/autoconf/ for additional information.
40 dnl ---------------------------------------------------------------------------
41 dnl ---------------------------------------------------------------------------
42 dnl CF_ACVERSION_CHECK version: 5 updated: 2014/06/04 19:11:49
43 dnl ------------------
44 dnl Conditionally generate script according to whether we're using a given autoconf.
46 dnl $1 = version to compare against
47 dnl $2 = code to use if AC_ACVERSION is at least as high as $1.
48 dnl $3 = code to use if AC_ACVERSION is older than $1.
49 define([CF_ACVERSION_CHECK],
51 ifdef([AC_ACVERSION], ,[ifdef([AC_AUTOCONF_VERSION],[m4_copy([AC_AUTOCONF_VERSION],[AC_ACVERSION])],[m4_copy([m4_PACKAGE_VERSION],[AC_ACVERSION])])])dnl
52 ifdef([m4_version_compare],
53 [m4_if(m4_version_compare(m4_defn([AC_ACVERSION]), [$1]), -1, [$3], [$2])],
54 [CF_ACVERSION_COMPARE(
55 AC_PREREQ_CANON(AC_PREREQ_SPLIT([$1])),
56 AC_PREREQ_CANON(AC_PREREQ_SPLIT(AC_ACVERSION)), AC_ACVERSION, [$2], [$3])])])dnl
57 dnl ---------------------------------------------------------------------------
58 dnl CF_ACVERSION_COMPARE version: 3 updated: 2012/10/03 18:39:53
59 dnl --------------------
60 dnl CF_ACVERSION_COMPARE(MAJOR1, MINOR1, TERNARY1,
61 dnl MAJOR2, MINOR2, TERNARY2,
62 dnl PRINTABLE2, not FOUND, FOUND)
63 define([CF_ACVERSION_COMPARE],
64 [ifelse(builtin([eval], [$2 < $5]), 1,
65 [ifelse([$8], , ,[$8])],
66 [ifelse([$9], , ,[$9])])])dnl
67 dnl ---------------------------------------------------------------------------
68 dnl CF_ADA_INCLUDE_DIRS version: 8 updated: 2013/10/14 04:24:07
69 dnl -------------------
70 dnl Construct the list of include-options for the C programs in the Ada95
72 AC_DEFUN([CF_ADA_INCLUDE_DIRS],
74 ACPPFLAGS="-I. -I../include -I../../include $ACPPFLAGS"
75 if test "$srcdir" != "."; then
76 ACPPFLAGS="-I\${srcdir}/../../include $ACPPFLAGS"
78 if test "$GCC" != yes; then
79 ACPPFLAGS="$ACPPFLAGS -I\${includedir}"
80 elif test "$includedir" != "/usr/include"; then
81 if test "$includedir" = '${prefix}/include' ; then
82 if test x$prefix != x/usr ; then
83 ACPPFLAGS="$ACPPFLAGS -I\${includedir}"
86 ACPPFLAGS="$ACPPFLAGS -I\${includedir}"
91 dnl ---------------------------------------------------------------------------
92 dnl CF_ADD_ADAFLAGS version: 1 updated: 2010/06/19 15:22:18
94 dnl Add to $ADAFLAGS, which is substituted into makefile and scripts.
95 AC_DEFUN([CF_ADD_ADAFLAGS],[
96 ADAFLAGS="$ADAFLAGS $1"
99 dnl ---------------------------------------------------------------------------
100 dnl CF_ADD_CFLAGS version: 13 updated: 2017/02/25 18:57:40
102 dnl Copy non-preprocessor flags to $CFLAGS, preprocessor flags to $CPPFLAGS
103 dnl The second parameter if given makes this macro verbose.
105 dnl Put any preprocessor definitions that use quoted strings in $EXTRA_CPPFLAGS,
106 dnl to simplify use of $CPPFLAGS in compiler checks, etc., that are easily
107 dnl confused by the quotes (which require backslashes to keep them usable).
108 AC_DEFUN([CF_ADD_CFLAGS],
113 cf_new_extra_cppflags=
115 for cf_add_cflags in $1
117 case $cf_fix_cppflags in
119 case $cf_add_cflags in
120 (-undef|-nostdinc*|-I*|-D*|-U*|-E|-P|-C)
121 case $cf_add_cflags in
123 cf_tst_cflags=`echo ${cf_add_cflags} |sed -e 's/^-D[[^=]]*='\''\"[[^"]]*//'`
125 test "x${cf_add_cflags}" != "x${cf_tst_cflags}" \
126 && test -z "${cf_tst_cflags}" \
127 && cf_fix_cppflags=yes
129 if test $cf_fix_cppflags = yes ; then
130 CF_APPEND_TEXT(cf_new_extra_cppflags,$cf_add_cflags)
132 elif test "${cf_tst_cflags}" = "\"'" ; then
133 CF_APPEND_TEXT(cf_new_extra_cppflags,$cf_add_cflags)
142 case $cf_add_cflags in
144 cf_tst_cppflags=`echo "x$cf_add_cflags" | sed -e 's/^...//' -e 's/=.*//'`
145 CF_REMOVE_DEFINE(CPPFLAGS,$CPPFLAGS,$cf_tst_cppflags)
148 CF_APPEND_TEXT(cf_new_cppflags,$cf_add_cflags)
153 CF_APPEND_TEXT(cf_new_cflags,$cf_add_cflags)
158 CF_APPEND_TEXT(cf_new_extra_cppflags,$cf_add_cflags)
160 cf_tst_cflags=`echo ${cf_add_cflags} |sed -e 's/^[[^"]]*"'\''//'`
162 test "x${cf_add_cflags}" != "x${cf_tst_cflags}" \
163 && test -z "${cf_tst_cflags}" \
164 && cf_fix_cppflags=no
169 if test -n "$cf_new_cflags" ; then
170 ifelse([$2],,,[CF_VERBOSE(add to \$CFLAGS $cf_new_cflags)])
171 CF_APPEND_TEXT(CFLAGS,$cf_new_cflags)
174 if test -n "$cf_new_cppflags" ; then
175 ifelse([$2],,,[CF_VERBOSE(add to \$CPPFLAGS $cf_new_cppflags)])
176 CF_APPEND_TEXT(CPPFLAGS,$cf_new_cppflags)
179 if test -n "$cf_new_extra_cppflags" ; then
180 ifelse([$2],,,[CF_VERBOSE(add to \$EXTRA_CPPFLAGS $cf_new_extra_cppflags)])
181 CF_APPEND_TEXT(EXTRA_CPPFLAGS,$cf_new_extra_cppflags)
184 AC_SUBST(EXTRA_CPPFLAGS)
187 dnl ---------------------------------------------------------------------------
188 dnl CF_ADD_INCDIR version: 15 updated: 2018/06/20 20:23:13
190 dnl Add an include-directory to $CPPFLAGS. Don't add /usr/include, since it's
191 dnl redundant. We don't normally need to add -I/usr/local/include for gcc,
192 dnl but old versions (and some misinstalled ones) need that. To make things
193 dnl worse, gcc 3.x may give error messages if -I/usr/local/include is added to
194 dnl the include-path).
195 AC_DEFUN([CF_ADD_INCDIR],
197 if test -n "$1" ; then
198 for cf_add_incdir in $1
200 while test $cf_add_incdir != /usr/include
202 if test -d $cf_add_incdir
205 if test -n "$CFLAGS$CPPFLAGS" ; then
206 # a loop is needed to ensure we can add subdirs of existing dirs
207 for cf_test_incdir in $CFLAGS $CPPFLAGS ; do
208 if test ".$cf_test_incdir" = ".-I$cf_add_incdir" ; then
209 cf_have_incdir=yes; break
214 if test "$cf_have_incdir" = no ; then
215 if test "$cf_add_incdir" = /usr/local/include ; then
218 cf_save_CPPFLAGS=$CPPFLAGS
219 CF_APPEND_TEXT(CPPFLAGS,-I$cf_add_incdir)
220 AC_TRY_COMPILE([#include <stdio.h>],
223 [cf_have_incdir=yes])
224 CPPFLAGS=$cf_save_CPPFLAGS
229 if test "$cf_have_incdir" = no ; then
230 CF_VERBOSE(adding $cf_add_incdir to include-path)
231 ifelse([$2],,CPPFLAGS,[$2])="$ifelse([$2],,CPPFLAGS,[$2]) -I$cf_add_incdir"
233 cf_top_incdir=`echo $cf_add_incdir | sed -e 's%/include/.*$%/include%'`
234 test "$cf_top_incdir" = "$cf_add_incdir" && break
235 cf_add_incdir="$cf_top_incdir"
246 dnl ---------------------------------------------------------------------------
247 dnl CF_ADD_LIB version: 2 updated: 2010/06/02 05:03:05
249 dnl Add a library, used to enforce consistency.
251 dnl $1 = library to add, without the "-l"
252 dnl $2 = variable to update (default $LIBS)
253 AC_DEFUN([CF_ADD_LIB],[CF_ADD_LIBS(-l$1,ifelse($2,,LIBS,[$2]))])dnl
254 dnl ---------------------------------------------------------------------------
255 dnl CF_ADD_LIBDIR version: 10 updated: 2015/04/18 08:56:57
257 dnl Adds to the library-path
259 dnl Some machines have trouble with multiple -L options.
261 dnl $1 is the (list of) directory(s) to add
262 dnl $2 is the optional name of the variable to update (default LDFLAGS)
264 AC_DEFUN([CF_ADD_LIBDIR],
266 if test -n "$1" ; then
267 for cf_add_libdir in $1
269 if test $cf_add_libdir = /usr/lib ; then
271 elif test -d $cf_add_libdir
274 if test -n "$LDFLAGS$LIBS" ; then
275 # a loop is needed to ensure we can add subdirs of existing dirs
276 for cf_test_libdir in $LDFLAGS $LIBS ; do
277 if test ".$cf_test_libdir" = ".-L$cf_add_libdir" ; then
278 cf_have_libdir=yes; break
282 if test "$cf_have_libdir" = no ; then
283 CF_VERBOSE(adding $cf_add_libdir to library-path)
284 ifelse([$2],,LDFLAGS,[$2])="-L$cf_add_libdir $ifelse([$2],,LDFLAGS,[$2])"
290 dnl ---------------------------------------------------------------------------
291 dnl CF_ADD_LIBS version: 3 updated: 2019/11/02 16:47:33
293 dnl Add one or more libraries, used to enforce consistency. Libraries are
294 dnl prepended to an existing list, since their dependencies are assumed to
295 dnl already exist in the list.
297 dnl $1 = libraries to add, with the "-l", etc.
298 dnl $2 = variable to update (default $LIBS)
299 AC_DEFUN([CF_ADD_LIBS],[
300 cf_add_libs="[$]ifelse($2,,LIBS,[$2])"
303 for cf_add_1lib in $1; do cf_add_0lib="$cf_add_1lib $cf_add_0lib"; done
305 for cf_add_1lib in $cf_add_0lib; do
306 for cf_add_2lib in $cf_add_libs; do
307 if test "x$cf_add_1lib" = "x$cf_add_2lib"; then
312 test -n "$cf_add_1lib" && cf_add_libs="$cf_add_1lib $cf_add_libs"
314 ifelse($2,,LIBS,[$2])="$cf_add_libs"
316 dnl ---------------------------------------------------------------------------
317 dnl CF_ADD_SUBDIR_PATH version: 4 updated: 2013/10/08 17:47:05
318 dnl ------------------
319 dnl Append to a search-list for a nonstandard header/lib-file
320 dnl $1 = the variable to return as result
321 dnl $2 = the package name
322 dnl $3 = the subdirectory, e.g., bin, include or lib
323 dnl $4 = the directory under which we will test for subdirectories
324 dnl $5 = a directory that we do not want $4 to match
325 AC_DEFUN([CF_ADD_SUBDIR_PATH],
327 test "x$4" != "x$5" && \
329 ifelse([$5],NONE,,[(test -z "$5" || test x$5 = xNONE || test "x$4" != "x$5") &&]) {
330 test -n "$verbose" && echo " ... testing for $3-directories under $4"
331 test -d $4/$3 && $1="[$]$1 $4/$3"
332 test -d $4/$3/$2 && $1="[$]$1 $4/$3/$2"
333 test -d $4/$3/$2/$3 && $1="[$]$1 $4/$3/$2/$3"
334 test -d $4/$2/$3 && $1="[$]$1 $4/$2/$3"
335 test -d $4/$2/$3/$2 && $1="[$]$1 $4/$2/$3/$2"
338 dnl ---------------------------------------------------------------------------
339 dnl CF_APPEND_TEXT version: 1 updated: 2017/02/25 18:58:55
341 dnl use this macro for appending text without introducing an extra blank at
343 define([CF_APPEND_TEXT],
345 test -n "[$]$1" && $1="[$]$1 "
348 dnl ---------------------------------------------------------------------------
349 dnl CF_ARG_DISABLE version: 3 updated: 1999/03/30 17:24:31
351 dnl Allow user to disable a normally-on option.
352 AC_DEFUN([CF_ARG_DISABLE],
353 [CF_ARG_OPTION($1,[$2],[$3],[$4],yes)])dnl
354 dnl ---------------------------------------------------------------------------
355 dnl CF_ARG_OPTION version: 5 updated: 2015/05/10 19:52:14
357 dnl Restricted form of AC_ARG_ENABLE that ensures user doesn't give bogus
363 dnl $3 = action to perform if option is not default
364 dnl $4 = action if perform if option is default
365 dnl $5 = default option value (either 'yes' or 'no')
366 AC_DEFUN([CF_ARG_OPTION],
367 [AC_ARG_ENABLE([$1],[$2],[test "$enableval" != ifelse([$5],no,yes,no) && enableval=ifelse([$5],no,no,yes)
368 if test "$enableval" != "$5" ; then
370 ,[ $3]) ifelse([$4],,,[
373 fi],[enableval=$5 ifelse([$4],,,[
377 dnl ---------------------------------------------------------------------------
378 dnl CF_AR_FLAGS version: 6 updated: 2015/10/10 15:25:05
380 dnl Check for suitable "ar" (archiver) options for updating an archive.
382 dnl In particular, handle some obsolete cases where the "-" might be omitted,
383 dnl as well as a workaround for breakage of make's archive rules by the GNU
384 dnl binutils "ar" program.
385 AC_DEFUN([CF_AR_FLAGS],[
386 AC_REQUIRE([CF_PROG_AR])
388 AC_CACHE_CHECK(for options to update archives, cf_cv_ar_flags,[
389 cf_cv_ar_flags=unknown
390 for cf_ar_flags in -curvU -curv curv -crv crv -cqv cqv -rv rv
393 # check if $ARFLAGS already contains this choice
394 if test "x$ARFLAGS" != "x" ; then
395 cf_check_ar_flags=`echo "x$ARFLAGS" | sed -e "s/$cf_ar_flags\$//" -e "s/$cf_ar_flags / /"`
396 if test "x$ARFLAGS" != "$cf_check_ar_flags" ; then
402 rm -f conftest.$ac_cv_objext
405 cat >conftest.$ac_ext <<EOF
406 #line __oline__ "configure"
407 int testdata[[3]] = { 123, 456, 789 };
409 if AC_TRY_EVAL(ac_compile) ; then
410 echo "$AR $ARFLAGS $cf_ar_flags conftest.a conftest.$ac_cv_objext" >&AC_FD_CC
411 $AR $ARFLAGS $cf_ar_flags conftest.a conftest.$ac_cv_objext 2>&AC_FD_CC 1>/dev/null
412 if test -f conftest.a ; then
413 cf_cv_ar_flags=$cf_ar_flags
417 CF_VERBOSE(cannot compile test-program)
421 rm -f conftest.a conftest.$ac_ext conftest.$ac_cv_objext
424 if test -n "$ARFLAGS" ; then
425 if test -n "$cf_cv_ar_flags" ; then
426 ARFLAGS="$ARFLAGS $cf_cv_ar_flags"
429 ARFLAGS=$cf_cv_ar_flags
434 dnl ---------------------------------------------------------------------------
435 dnl CF_BUILD_CC version: 8 updated: 2018/01/04 20:31:04
437 dnl If we're cross-compiling, allow the user to override the tools and their
438 dnl options. The configure script is oriented toward identifying the host
439 dnl compiler, etc., but we need a build compiler to generate parts of the
442 dnl $1 = default for $CPPFLAGS
443 dnl $2 = default for $LIBS
444 AC_DEFUN([CF_BUILD_CC],[
445 CF_ACVERSION_CHECK(2.52,,
446 [AC_REQUIRE([CF_PROG_EXT])])
447 if test "$cross_compiling" = yes ; then
449 # defaults that we might want to override
450 : ${BUILD_CFLAGS:=''}
451 : ${BUILD_CPPFLAGS:='ifelse([$1],,,[$1])'}
452 : ${BUILD_LDFLAGS:=''}
453 : ${BUILD_LIBS:='ifelse([$2],,,[$2])'}
454 : ${BUILD_EXEEXT:='$x'}
455 : ${BUILD_OBJEXT:='o'}
457 AC_ARG_WITH(build-cc,
458 [ --with-build-cc=XXX the build C compiler ($BUILD_CC)],
459 [BUILD_CC="$withval"],
460 [AC_CHECK_PROGS(BUILD_CC, [gcc clang c99 c89 cc cl],none)])
461 AC_MSG_CHECKING(for native build C compiler)
462 AC_MSG_RESULT($BUILD_CC)
464 AC_MSG_CHECKING(for native build C preprocessor)
465 AC_ARG_WITH(build-cpp,
466 [ --with-build-cpp=XXX the build C preprocessor ($BUILD_CPP)],
467 [BUILD_CPP="$withval"],
468 [BUILD_CPP='${BUILD_CC} -E'])
469 AC_MSG_RESULT($BUILD_CPP)
471 AC_MSG_CHECKING(for native build C flags)
472 AC_ARG_WITH(build-cflags,
473 [ --with-build-cflags=XXX the build C compiler-flags ($BUILD_CFLAGS)],
474 [BUILD_CFLAGS="$withval"])
475 AC_MSG_RESULT($BUILD_CFLAGS)
477 AC_MSG_CHECKING(for native build C preprocessor-flags)
478 AC_ARG_WITH(build-cppflags,
479 [ --with-build-cppflags=XXX the build C preprocessor-flags ($BUILD_CPPFLAGS)],
480 [BUILD_CPPFLAGS="$withval"])
481 AC_MSG_RESULT($BUILD_CPPFLAGS)
483 AC_MSG_CHECKING(for native build linker-flags)
484 AC_ARG_WITH(build-ldflags,
485 [ --with-build-ldflags=XXX the build linker-flags ($BUILD_LDFLAGS)],
486 [BUILD_LDFLAGS="$withval"])
487 AC_MSG_RESULT($BUILD_LDFLAGS)
489 AC_MSG_CHECKING(for native build linker-libraries)
490 AC_ARG_WITH(build-libs,
491 [ --with-build-libs=XXX the build libraries (${BUILD_LIBS})],
492 [BUILD_LIBS="$withval"])
493 AC_MSG_RESULT($BUILD_LIBS)
495 # this assumes we're on Unix.
499 : ${BUILD_CC:='${CC}'}
501 if ( test "$BUILD_CC" = "$CC" || test "$BUILD_CC" = '${CC}' ) ; then
502 AC_MSG_ERROR([Cross-build requires two compilers.
503 Use --with-build-cc to specify the native compiler.])
507 : ${BUILD_CC:='${CC}'}
508 : ${BUILD_CPP:='${CPP}'}
509 : ${BUILD_CFLAGS:='${CFLAGS}'}
510 : ${BUILD_CPPFLAGS:='${CPPFLAGS}'}
511 : ${BUILD_LDFLAGS:='${LDFLAGS}'}
512 : ${BUILD_LIBS:='${LIBS}'}
513 : ${BUILD_EXEEXT:='$x'}
514 : ${BUILD_OBJEXT:='o'}
519 AC_SUBST(BUILD_CFLAGS)
520 AC_SUBST(BUILD_CPPFLAGS)
521 AC_SUBST(BUILD_LDFLAGS)
523 AC_SUBST(BUILD_EXEEXT)
524 AC_SUBST(BUILD_OBJEXT)
526 dnl ---------------------------------------------------------------------------
527 dnl CF_CC_ENV_FLAGS version: 9 updated: 2018/07/29 18:03:26
529 dnl Check for user's environment-breakage by stuffing CFLAGS/CPPFLAGS content
530 dnl into CC. This will not help with broken scripts that wrap the compiler
531 dnl with options, but eliminates a more common category of user confusion.
533 dnl In particular, it addresses the problem of being able to run the C
534 dnl preprocessor in a consistent manner.
536 dnl Caveat: this also disallows blanks in the pathname for the compiler, but
537 dnl the nuisance of having inconsistent settings for compiler and preprocessor
538 dnl outweighs that limitation.
539 AC_DEFUN([CF_CC_ENV_FLAGS],
541 # This should have been defined by AC_PROG_CC
544 AC_MSG_CHECKING(\$CFLAGS variable)
547 AC_MSG_RESULT(broken)
548 AC_MSG_WARN(your environment uses the CFLAGS variable to hold CPPFLAGS options)
551 for cf_arg in $cf_flags
553 CF_ADD_CFLAGS($cf_arg)
561 AC_MSG_CHECKING(\$CC variable)
564 AC_MSG_RESULT(broken)
565 AC_MSG_WARN(your environment uses the CC variable to hold CFLAGS/CPPFLAGS options)
567 cf_prog=`echo "$CC" | sed -e 's/ / /g' -e 's/[[ ]]* / /g' -e 's/[[ ]]*[[ ]]-[[^ ]].*//'`
568 cf_flags=`echo "$CC" | ${AWK:-awk} -v prog="$cf_prog" '{ printf("%s", [substr]([$]0,1+length(prog))); }'`
570 for cf_arg in $cf_flags
574 CF_ADD_CFLAGS($cf_arg)
581 CF_VERBOSE(resulting CC: '$CC')
582 CF_VERBOSE(resulting CFLAGS: '$CFLAGS')
583 CF_VERBOSE(resulting CPPFLAGS: '$CPPFLAGS')
590 dnl ---------------------------------------------------------------------------
591 dnl CF_CFG_DEFAULTS version: 11 updated: 2015/04/17 21:13:04
593 dnl Determine the default configuration into which we'll install ncurses. This
594 dnl can be overridden by the user's command-line options. There's two items to
596 dnl 1. the prefix (e.g., /usr)
597 dnl 2. the header files (e.g., /usr/include/ncurses)
598 dnl We'll look for a previous installation of ncurses and use the same defaults.
600 dnl We don't use AC_PREFIX_DEFAULT, because it gets evaluated too soon, and
601 dnl we don't use AC_PREFIX_PROGRAM, because we cannot distinguish ncurses's
602 dnl programs from a vendor's.
603 AC_DEFUN([CF_CFG_DEFAULTS],
605 AC_MSG_CHECKING(for prefix)
606 if test "x$prefix" = "xNONE" ; then
607 case "$cf_cv_system_name" in
608 # non-vendor systems don't have a conflict
609 (openbsd*|freebsd*|mirbsd*|linux*|cygwin*|msys*|k*bsd*-gnu|mingw*)
612 (*) prefix=$ac_default_prefix
616 AC_MSG_RESULT($prefix)
618 if test "x$prefix" = "xNONE" ; then
619 AC_MSG_CHECKING(for default include-directory)
620 test -n "$verbose" && echo 1>&AC_FD_MSG
623 $includedir/ncurses \
625 $prefix/include/ncurses \
627 /usr/local/include/ncurses \
631 cf_dir=`eval echo $cf_symbol`
632 if test -f $cf_dir/curses.h ; then
633 if ( fgrep NCURSES_VERSION $cf_dir/curses.h 2>&1 >/dev/null ) ; then
634 includedir="$cf_symbol"
635 test -n "$verbose" && echo $ac_n " found " 1>&AC_FD_MSG
639 test -n "$verbose" && echo " tested $cf_dir" 1>&AC_FD_MSG
641 AC_MSG_RESULT($includedir)
644 dnl ---------------------------------------------------------------------------
645 dnl CF_CHECK_CACHE version: 12 updated: 2012/10/02 20:55:03
647 dnl Check if we're accidentally using a cache from a different machine.
648 dnl Derive the system name, as a check for reusing the autoconf cache.
650 dnl If we've packaged config.guess and config.sub, run that (since it does a
651 dnl better job than uname). Normally we'll use AC_CANONICAL_HOST, but allow
652 dnl an extra parameter that we may override, e.g., for AC_CANONICAL_SYSTEM
653 dnl which is useful in cross-compiles.
655 dnl Note: we would use $ac_config_sub, but that is one of the places where
656 dnl autoconf 2.5x broke compatibility with autoconf 2.13
657 AC_DEFUN([CF_CHECK_CACHE],
659 if test -f $srcdir/config.guess || test -f $ac_aux_dir/config.guess ; then
660 ifelse([$1],,[AC_CANONICAL_HOST],[$1])
661 system_name="$host_os"
663 system_name="`(uname -s -r) 2>/dev/null`"
664 if test -z "$system_name" ; then
665 system_name="`(hostname) 2>/dev/null`"
668 test -n "$system_name" && AC_DEFINE_UNQUOTED(SYSTEM_NAME,"$system_name",[Define to the system name.])
669 AC_CACHE_VAL(cf_cv_system_name,[cf_cv_system_name="$system_name"])
671 test -z "$system_name" && system_name="$cf_cv_system_name"
672 test -n "$cf_cv_system_name" && AC_MSG_RESULT(Configuring for $cf_cv_system_name)
674 if test ".$system_name" != ".$cf_cv_system_name" ; then
675 AC_MSG_RESULT(Cached system name ($system_name) does not agree with actual ($cf_cv_system_name))
676 AC_MSG_ERROR("Please remove config.cache and try again.")
679 dnl ---------------------------------------------------------------------------
680 dnl CF_CHECK_GNAT_VERSION version: 2 updated: 2019/12/31 08:53:54
681 dnl ---------------------
682 AC_DEFUN([CF_CHECK_GNAT_VERSION],
684 AC_REQUIRE([CF_GNAT_VERSION])
685 case $cf_cv_gnat_version in
686 (3.1[[1-9]]*|3.[[2-9]]*|[[4-9]].*|20[[0-9]][[0-9]])
687 cf_cv_prog_gnat_correct=yes
690 AC_MSG_WARN(Unsupported GNAT version $cf_cv_gnat_version. We require 3.11 or better. Disabling Ada95 binding.)
691 cf_cv_prog_gnat_correct=no
695 dnl ---------------------------------------------------------------------------
696 dnl CF_CLANG_COMPILER version: 2 updated: 2013/11/19 19:23:35
697 dnl -----------------
698 dnl Check if the given compiler is really clang. clang's C driver defines
699 dnl __GNUC__ (fooling the configure script into setting $GCC to yes) but does
700 dnl not ignore some gcc options.
702 dnl This macro should be run "soon" after AC_PROG_CC or AC_PROG_CPLUSPLUS, to
703 dnl ensure that it is not mistaken for gcc/g++. It is normally invoked from
704 dnl the wrappers for gcc and g++ warnings.
706 dnl $1 = GCC (default) or GXX
707 dnl $2 = CLANG_COMPILER (default)
708 dnl $3 = CFLAGS (default) or CXXFLAGS
709 AC_DEFUN([CF_CLANG_COMPILER],[
710 ifelse([$2],,CLANG_COMPILER,[$2])=no
712 if test "$ifelse([$1],,[$1],GCC)" = yes ; then
713 AC_MSG_CHECKING(if this is really Clang ifelse([$1],GXX,C++,C) compiler)
714 cf_save_CFLAGS="$ifelse([$3],,CFLAGS,[$3])"
715 ifelse([$3],,CFLAGS,[$3])="$ifelse([$3],,CFLAGS,[$3]) -Qunused-arguments"
721 ],[ifelse([$2],,CLANG_COMPILER,[$2])=yes
722 cf_save_CFLAGS="$cf_save_CFLAGS -Qunused-arguments"
724 ifelse([$3],,CFLAGS,[$3])="$cf_save_CFLAGS"
725 AC_MSG_RESULT($ifelse([$2],,CLANG_COMPILER,[$2]))
728 dnl ---------------------------------------------------------------------------
729 dnl CF_CONST_X_STRING version: 1 updated: 2019/04/08 17:50:29
730 dnl -----------------
731 dnl The X11R4-X11R6 Xt specification uses an ambiguous String type for most
732 dnl character-strings.
734 dnl It is ambiguous because the specification accommodated the pre-ANSI
735 dnl compilers bundled by more than one vendor in lieu of providing a standard C
736 dnl compiler other than by costly add-ons. Because of this, the specification
737 dnl did not take into account the use of const for telling the compiler that
738 dnl string literals would be in readonly memory.
740 dnl As a workaround, one could (starting with X11R5) define XTSTRINGDEFINES, to
741 dnl let the compiler decide how to represent Xt's strings which were #define'd.
742 dnl That does not solve the problem of using the block of Xt's strings which
743 dnl are compiled into the library (and is less efficient than one might want).
745 dnl Xt specification 7 introduces the _CONST_X_STRING symbol which is used both
746 dnl when compiling the library and compiling using the library, to tell the
747 dnl compiler that String is const.
748 AC_DEFUN([CF_CONST_X_STRING],
753 #include <X11/Intrinsic.h>
755 [String foo = malloc(1)],[
757 AC_CACHE_CHECK(for X11/Xt const-feature,cf_cv_const_x_string,[
760 #define _CONST_X_STRING /* X11R7.8 (perhaps) */
761 #undef XTSTRINGDEFINES /* X11R5 and later */
763 #include <X11/Intrinsic.h>
764 ],[String foo = malloc(1); *foo = 0],[
765 cf_cv_const_x_string=no
767 cf_cv_const_x_string=yes
771 case $cf_cv_const_x_string in
773 CF_APPEND_TEXT(CPPFLAGS,-DXTSTRINGDEFINES)
776 CF_APPEND_TEXT(CPPFLAGS,-D_CONST_X_STRING)
782 dnl ---------------------------------------------------------------------------
783 dnl CF_CURSES_HEADER version: 5 updated: 2015/04/23 20:35:30
785 dnl Find a "curses" header file, e.g,. "curses.h", or one of the more common
786 dnl variations of ncurses' installs.
788 dnl $1 = ncurses when looking for ncurses, or is empty
789 AC_DEFUN([CF_CURSES_HEADER],[
790 AC_CACHE_CHECK(if we have identified curses headers,cf_cv_ncurses_header,[
791 cf_cv_ncurses_header=none
793 ncurses.h ifelse($1,,,[$1/ncurses.h]) \
794 curses.h ifelse($1,,,[$1/curses.h]) ifelse($1,,[ncurses/ncurses.h ncurses/curses.h])
796 AC_TRY_COMPILE([#include <${cf_header}>],
797 [initscr(); tgoto("?", 0,0)],
798 [cf_cv_ncurses_header=$cf_header; break],[])
802 if test "$cf_cv_ncurses_header" = none ; then
803 AC_MSG_ERROR(No curses header-files found)
806 # cheat, to get the right #define's for HAVE_NCURSES_H, etc.
807 AC_CHECK_HEADERS($cf_cv_ncurses_header)
809 dnl ---------------------------------------------------------------------------
810 dnl CF_DIRNAME version: 4 updated: 2002/12/21 19:25:52
812 dnl "dirname" is not portable, so we fake it with a shell script.
813 AC_DEFUN([CF_DIRNAME],[$1=`echo $2 | sed -e 's%/[[^/]]*$%%'`])dnl
814 dnl ---------------------------------------------------------------------------
815 dnl CF_DISABLE_ECHO version: 13 updated: 2015/04/18 08:56:57
817 dnl You can always use "make -n" to see the actual options, but it's hard to
818 dnl pick out/analyze warning messages when the compile-line is long.
821 dnl ECHO_LT - symbol to control if libtool is verbose
822 dnl ECHO_LD - symbol to prefix "cc -o" lines
823 dnl RULE_CC - symbol to put before implicit "cc -c" lines (e.g., .c.o)
824 dnl SHOW_CC - symbol to put before explicit "cc -c" lines
825 dnl ECHO_CC - symbol to put before any "cc" line
827 AC_DEFUN([CF_DISABLE_ECHO],[
828 AC_MSG_CHECKING(if you want to see long compiling messages)
830 [ --disable-echo do not display "compiling" commands],
833 ECHO_LD='@echo linking [$]@;'
834 RULE_CC='@echo compiling [$]<'
835 SHOW_CC='@echo compiling [$]@'
844 AC_MSG_RESULT($enableval)
851 dnl ---------------------------------------------------------------------------
852 dnl CF_DISABLE_GNAT_PROJECTS version: 1 updated: 2014/06/01 11:34:00
853 dnl ------------------------
854 AC_DEFUN([CF_DISABLE_GNAT_PROJECTS],[
855 AC_MSG_CHECKING(if we want to use GNAT projects)
856 CF_ARG_DISABLE(gnat-projects,
857 [ --disable-gnat-projects test: disable GNAT projects even if usable],
858 [enable_gnat_projects=no],
859 [enable_gnat_projects=yes])
860 AC_MSG_RESULT($enable_gnat_projects)
862 dnl ---------------------------------------------------------------------------
863 dnl CF_FIND_LIBRARY version: 9 updated: 2008/03/23 14:48:54
865 dnl Look for a non-standard library, given parameters for AC_TRY_LINK. We
866 dnl prefer a standard location, and use -L options only if we do not find the
867 dnl library in the standard library location(s).
868 dnl $1 = library name
869 dnl $2 = library class, usually the same as library name
871 dnl $4 = code fragment to compile/link
872 dnl $5 = corresponding function-name
873 dnl $6 = flag, nonnull if failure should not cause an error-exit
875 dnl Sets the variable "$cf_libdir" as a side-effect, so we can see if we had
876 dnl to use a -L option.
877 AC_DEFUN([CF_FIND_LIBRARY],
879 eval 'cf_cv_have_lib_'$1'=no'
882 eval 'cf_cv_have_lib_'$1'=yes',[
884 AC_MSG_CHECKING(for $5 in -l$1)
886 AC_TRY_LINK([$3],[$4],
888 eval 'cf_cv_have_lib_'$1'=yes'
891 CF_LIBRARY_PATH(cf_search,$2)
892 for cf_libdir in $cf_search
894 AC_MSG_CHECKING(for -l$1 in $cf_libdir)
895 LIBS="-L$cf_libdir -l$1 $cf_save_LIBS"
896 AC_TRY_LINK([$3],[$4],
898 eval 'cf_cv_have_lib_'$1'=yes'
901 LIBS="$cf_save_LIBS"])
905 eval 'cf_found_library=[$]cf_cv_have_lib_'$1
907 if test $cf_found_library = no ; then
908 AC_MSG_ERROR(Cannot link $1 library)
912 dnl ---------------------------------------------------------------------------
913 dnl CF_FIND_LINKAGE version: 21 updated: 2018/06/20 20:23:13
915 dnl Find a library (specifically the linkage used in the code fragment),
916 dnl searching for it if it is not already in the library path.
917 dnl See also CF_ADD_SEARCHPATH.
919 dnl Parameters (4-on are optional):
920 dnl $1 = headers for library entrypoint
921 dnl $2 = code fragment for library entrypoint
922 dnl $3 = the library name without the "-l" option or ".so" suffix.
923 dnl $4 = action to perform if successful (default: update CPPFLAGS, etc)
924 dnl $5 = action to perform if not successful
925 dnl $6 = module name, if not the same as the library name
926 dnl $7 = extra libraries
928 dnl Sets these variables:
929 dnl $cf_cv_find_linkage_$3 - yes/no according to whether linkage is found
930 dnl $cf_cv_header_path_$3 - include-directory if needed
931 dnl $cf_cv_library_path_$3 - library-directory if needed
932 dnl $cf_cv_library_file_$3 - library-file if needed, e.g., -l$3
933 AC_DEFUN([CF_FIND_LINKAGE],[
935 # If the linkage is not already in the $CPPFLAGS/$LDFLAGS configuration, these
936 # will be set on completion of the AC_TRY_LINK below.
937 cf_cv_header_path_$3=
938 cf_cv_library_path_$3=
940 CF_MSG_LOG([Starting [FIND_LINKAGE]($3,$6)])
944 AC_TRY_LINK([$1],[$2],[
945 cf_cv_find_linkage_$3=yes
946 cf_cv_header_path_$3=/usr/include
947 cf_cv_library_path_$3=/usr/lib
950 LIBS="-l$3 $7 $cf_save_LIBS"
952 AC_TRY_LINK([$1],[$2],[
953 cf_cv_find_linkage_$3=yes
954 cf_cv_header_path_$3=/usr/include
955 cf_cv_library_path_$3=/usr/lib
956 cf_cv_library_file_$3="-l$3"
958 cf_cv_find_linkage_$3=no
961 CF_VERBOSE(find linkage for $3 library)
962 CF_MSG_LOG([Searching for headers in [FIND_LINKAGE]($3,$6)])
964 cf_save_CPPFLAGS="$CPPFLAGS"
965 cf_test_CPPFLAGS="$CPPFLAGS"
967 CF_HEADER_PATH(cf_search,ifelse([$6],,[$3],[$6]))
968 for cf_cv_header_path_$3 in $cf_search
970 if test -d $cf_cv_header_path_$3 ; then
971 CF_VERBOSE(... testing $cf_cv_header_path_$3)
972 CPPFLAGS="$cf_save_CPPFLAGS"
973 CF_APPEND_TEXT(CPPFLAGS,-I$cf_cv_header_path_$3)
974 AC_TRY_COMPILE([$1],[$2],[
975 CF_VERBOSE(... found $3 headers in $cf_cv_header_path_$3)
976 cf_cv_find_linkage_$3=maybe
977 cf_test_CPPFLAGS="$CPPFLAGS"
979 CPPFLAGS="$cf_save_CPPFLAGS"
984 if test "$cf_cv_find_linkage_$3" = maybe ; then
986 CF_MSG_LOG([Searching for $3 library in [FIND_LINKAGE]($3,$6)])
989 cf_save_LDFLAGS="$LDFLAGS"
992 CPPFLAGS="$cf_test_CPPFLAGS"
993 LIBS="-l$3 $7 $cf_save_LIBS"
994 AC_TRY_LINK([$1],[$2],[
995 CF_VERBOSE(... found $3 library in system)
996 cf_cv_find_linkage_$3=yes])
997 CPPFLAGS="$cf_save_CPPFLAGS"
1001 if test "$cf_cv_find_linkage_$3" != yes ; then
1002 CF_LIBRARY_PATH(cf_search,$3)
1003 for cf_cv_library_path_$3 in $cf_search
1005 if test -d $cf_cv_library_path_$3 ; then
1006 CF_VERBOSE(... testing $cf_cv_library_path_$3)
1007 CPPFLAGS="$cf_test_CPPFLAGS"
1008 LIBS="-l$3 $7 $cf_save_LIBS"
1009 LDFLAGS="$cf_save_LDFLAGS -L$cf_cv_library_path_$3"
1010 AC_TRY_LINK([$1],[$2],[
1011 CF_VERBOSE(... found $3 library in $cf_cv_library_path_$3)
1012 cf_cv_find_linkage_$3=yes
1013 cf_cv_library_file_$3="-l$3"
1015 CPPFLAGS="$cf_save_CPPFLAGS"
1016 LIBS="$cf_save_LIBS"
1017 LDFLAGS="$cf_save_LDFLAGS"
1021 CPPFLAGS="$cf_save_CPPFLAGS"
1022 LDFLAGS="$cf_save_LDFLAGS"
1026 cf_cv_find_linkage_$3=no
1031 LIBS="$cf_save_LIBS"
1033 if test "$cf_cv_find_linkage_$3" = yes ; then
1035 CF_ADD_INCDIR($cf_cv_header_path_$3)
1036 CF_ADD_LIBDIR($cf_cv_library_path_$3)
1040 ifelse([$5],,AC_MSG_WARN(Cannot find $3 library),[$5])
1043 dnl ---------------------------------------------------------------------------
1044 dnl CF_FIXUP_ADAFLAGS version: 2 updated: 2015/04/17 21:13:04
1045 dnl -----------------
1046 dnl make ADAFLAGS consistent with CFLAGS
1047 AC_DEFUN([CF_FIXUP_ADAFLAGS],[
1048 AC_MSG_CHECKING(optimization options for ADAFLAGS)
1056 cf_O_flag=`echo "$CFLAGS" |sed -e 's/^.*-O/-O/' -e 's/[[ ]].*//'`
1057 CF_ADD_ADAFLAGS($cf_O_flag)
1060 AC_MSG_RESULT($ADAFLAGS)
1062 dnl ---------------------------------------------------------------------------
1063 dnl CF_GCC_ATTRIBUTES version: 17 updated: 2015/04/12 15:39:00
1064 dnl -----------------
1065 dnl Test for availability of useful gcc __attribute__ directives to quiet
1066 dnl compiler warnings. Though useful, not all are supported -- and contrary
1067 dnl to documentation, unrecognized directives cause older compilers to barf.
1068 AC_DEFUN([CF_GCC_ATTRIBUTES],
1070 if test "$GCC" = yes
1072 cat > conftest.i <<EOF
1074 #define GCC_PRINTF 0
1079 #ifndef GCC_NORETURN
1080 #define GCC_NORETURN /* nothing */
1083 #define GCC_UNUSED /* nothing */
1086 if test "$GCC" = yes
1088 AC_CHECKING([for $CC __attribute__ directives])
1089 cat > conftest.$ac_ext <<EOF
1090 #line __oline__ "${as_me:-configure}"
1091 #include "confdefs.h"
1092 #include "conftest.h"
1093 #include "conftest.i"
1095 #define GCC_PRINTFLIKE(fmt,var) __attribute__((format(printf,fmt,var)))
1097 #define GCC_PRINTFLIKE(fmt,var) /*nothing*/
1100 #define GCC_SCANFLIKE(fmt,var) __attribute__((format(scanf,fmt,var)))
1102 #define GCC_SCANFLIKE(fmt,var) /*nothing*/
1104 extern void wow(char *,...) GCC_SCANFLIKE(1,2);
1105 extern void oops(char *,...) GCC_PRINTFLIKE(1,2) GCC_NORETURN;
1106 extern void foo(void) GCC_NORETURN;
1107 int main(int argc GCC_UNUSED, char *argv[[]] GCC_UNUSED) { return 0; }
1109 cf_printf_attribute=no
1110 cf_scanf_attribute=no
1111 for cf_attribute in scanf printf unused noreturn
1113 CF_UPPER(cf_ATTRIBUTE,$cf_attribute)
1114 cf_directive="__attribute__(($cf_attribute))"
1115 echo "checking for $CC $cf_directive" 1>&AC_FD_CC
1117 case $cf_attribute in
1119 cf_printf_attribute=yes
1120 cat >conftest.h <<EOF
1121 #define GCC_$cf_ATTRIBUTE 1
1125 cf_scanf_attribute=yes
1126 cat >conftest.h <<EOF
1127 #define GCC_$cf_ATTRIBUTE 1
1131 cat >conftest.h <<EOF
1132 #define GCC_$cf_ATTRIBUTE $cf_directive
1137 if AC_TRY_EVAL(ac_compile); then
1138 test -n "$verbose" && AC_MSG_RESULT(... $cf_attribute)
1139 cat conftest.h >>confdefs.h
1140 case $cf_attribute in
1142 AC_DEFINE_UNQUOTED(GCC_NORETURN,$cf_directive,[Define to noreturn-attribute for gcc])
1145 cf_value='/* nothing */'
1146 if test "$cf_printf_attribute" != no ; then
1147 cf_value='__attribute__((format(printf,fmt,var)))'
1148 AC_DEFINE(GCC_PRINTF,1,[Define to 1 if the compiler supports gcc-like printf attribute.])
1150 AC_DEFINE_UNQUOTED(GCC_PRINTFLIKE(fmt,var),$cf_value,[Define to printf-attribute for gcc])
1153 cf_value='/* nothing */'
1154 if test "$cf_scanf_attribute" != no ; then
1155 cf_value='__attribute__((format(scanf,fmt,var)))'
1156 AC_DEFINE(GCC_SCANF,1,[Define to 1 if the compiler supports gcc-like scanf attribute.])
1158 AC_DEFINE_UNQUOTED(GCC_SCANFLIKE(fmt,var),$cf_value,[Define to sscanf-attribute for gcc])
1161 AC_DEFINE_UNQUOTED(GCC_UNUSED,$cf_directive,[Define to unused-attribute for gcc])
1167 fgrep define conftest.i >>confdefs.h
1172 dnl ---------------------------------------------------------------------------
1173 dnl CF_GCC_VERSION version: 8 updated: 2019/09/07 13:38:36
1175 dnl Find version of gcc, and (because icc/clang pretend to be gcc without being
1176 dnl compatible), attempt to determine if icc/clang is actually used.
1177 AC_DEFUN([CF_GCC_VERSION],[
1178 AC_REQUIRE([AC_PROG_CC])
1180 if test "$GCC" = yes ; then
1181 AC_MSG_CHECKING(version of $CC)
1182 GCC_VERSION="`${CC} --version 2>/dev/null | sed -e '2,$d' -e 's/^.*(GCC[[^)]]*) //' -e 's/^.*(Debian[[^)]]*) //' -e 's/^[[^0-9.]]*//' -e 's/[[^0-9.]].*//'`"
1183 test -z "$GCC_VERSION" && GCC_VERSION=unknown
1184 AC_MSG_RESULT($GCC_VERSION)
1186 CF_INTEL_COMPILER(GCC,INTEL_COMPILER,CFLAGS)
1187 CF_CLANG_COMPILER(GCC,CLANG_COMPILER,CFLAGS)
1189 dnl ---------------------------------------------------------------------------
1190 dnl CF_GCC_WARNINGS version: 36 updated: 2019/09/07 13:38:36
1192 dnl Check if the compiler supports useful warning options. There's a few that
1193 dnl we don't use, simply because they're too noisy:
1195 dnl -Wconversion (useful in older versions of gcc, but not in gcc 2.7.x)
1196 dnl -Wredundant-decls (system headers make this too noisy)
1197 dnl -Wtraditional (combines too many unrelated messages, only a few useful)
1198 dnl -Wwrite-strings (too noisy, but should review occasionally). This
1199 dnl is enabled for ncurses using "--enable-const".
1203 dnl $1 is an optional list of gcc warning flags that a particular
1204 dnl application might want to use, e.g., "no-unused" for
1207 dnl If $with_ext_const is "yes", add a check for -Wwrite-strings
1209 AC_DEFUN([CF_GCC_WARNINGS],
1211 AC_REQUIRE([CF_GCC_VERSION])
1212 if test "x$have_x" = xyes; then CF_CONST_X_STRING fi
1213 cat > conftest.$ac_ext <<EOF
1214 #line __oline__ "${as_me:-configure}"
1215 int main(int argc, char *argv[[]]) { return (argv[[argc-1]] == 0) ; }
1217 if test "$INTEL_COMPILER" = yes
1219 # The "-wdXXX" options suppress warnings:
1220 # remark #1419: external declaration in primary source file
1221 # remark #1683: explicit conversion of a 64-bit integral type to a smaller integral type (potential portability problem)
1222 # remark #1684: conversion from pointer to same-sized integral type (potential portability problem)
1223 # remark #193: zero used for undefined preprocessing identifier
1224 # remark #593: variable "curs_sb_left_arrow" was set but never used
1225 # remark #810: conversion from "int" to "Dimension={unsigned short}" may lose significant bits
1226 # remark #869: parameter "tw" was never referenced
1227 # remark #981: operands are evaluated in unspecified order
1228 # warning #279: controlling expression is constant
1230 AC_CHECKING([for $CC warning options])
1231 cf_save_CFLAGS="$CFLAGS"
1232 EXTRA_CFLAGS="-Wall"
1244 CFLAGS="$cf_save_CFLAGS $EXTRA_CFLAGS -$cf_opt"
1245 if AC_TRY_EVAL(ac_compile); then
1246 test -n "$verbose" && AC_MSG_RESULT(... -$cf_opt)
1247 EXTRA_CFLAGS="$EXTRA_CFLAGS -$cf_opt"
1250 CFLAGS="$cf_save_CFLAGS"
1251 elif test "$GCC" = yes
1253 AC_CHECKING([for $CC warning options])
1254 cf_save_CFLAGS="$CFLAGS"
1257 test "$with_ext_const" = yes && cf_warn_CONST="Wwrite-strings"
1258 cf_gcc_warnings="Wignored-qualifiers Wlogical-op Wvarargs"
1259 test "x$CLANG_COMPILER" = xyes && cf_gcc_warnings=
1260 for cf_opt in W Wall \
1261 Wbad-function-cast \
1264 Wdeclaration-after-statement \
1267 Wmissing-declarations \
1268 Wmissing-prototypes \
1272 Wstrict-prototypes \
1273 Wundef $cf_gcc_warnings $cf_warn_CONST $1
1275 CFLAGS="$cf_save_CFLAGS $EXTRA_CFLAGS -$cf_opt"
1276 if AC_TRY_EVAL(ac_compile); then
1277 test -n "$verbose" && AC_MSG_RESULT(... -$cf_opt)
1280 case $GCC_VERSION in
1282 CF_VERBOSE(feature is broken in gcc $GCC_VERSION)
1287 case $GCC_VERSION in
1289 CF_VERBOSE(feature is broken in gcc $GCC_VERSION)
1294 EXTRA_CFLAGS="$EXTRA_CFLAGS -$cf_opt"
1297 CFLAGS="$cf_save_CFLAGS"
1301 AC_SUBST(EXTRA_CFLAGS)
1303 dnl ---------------------------------------------------------------------------
1304 dnl CF_GNATPREP_OPT_T version: 1 updated: 2014/08/02 18:37:25
1305 dnl -----------------
1306 AC_DEFUN([CF_GNATPREP_OPT_T],[
1307 AC_CACHE_CHECK(if GNATPREP supports -T option,cf_cv_gnatprep_opt_t,[
1308 cf_cv_gnatprep_opt_t=no
1309 gnatprep -T 2>/dev/null >/dev/null && cf_cv_gnatprep_opt_t=yes
1311 test "$cf_cv_gnatprep_opt_t" = yes && GNATPREP_OPTS="-T $GNATPREP_OPTS"
1312 AC_SUBST(GNATPREP_OPTS)
1314 dnl ---------------------------------------------------------------------------
1315 dnl CF_GNAT_GENERICS version: 4 updated: 2019/12/31 08:53:54
1316 dnl ----------------
1317 AC_DEFUN([CF_GNAT_GENERICS],
1319 AC_REQUIRE([CF_GNAT_VERSION])
1321 AC_MSG_CHECKING(if GNAT supports generics)
1322 case $cf_cv_gnat_version in
1323 (3.[[1-9]]*|[[4-9]].*)
1324 cf_gnat_generics=yes
1330 AC_MSG_RESULT($cf_gnat_generics)
1332 if test "$cf_gnat_generics" = yes
1334 cf_compile_generics=generics
1335 cf_generic_objects="\${GENOBJS}"
1337 cf_compile_generics=
1341 AC_SUBST(cf_compile_generics)
1342 AC_SUBST(cf_generic_objects)
1344 dnl ---------------------------------------------------------------------------
1345 dnl CF_GNAT_PROJECTS version: 10 updated: 2019/12/31 08:53:54
1346 dnl ----------------
1347 dnl GNAT projects are configured with ".gpr" project files.
1348 dnl GNAT libraries are a further development, using the project feature.
1349 AC_DEFUN([CF_GNAT_PROJECTS],
1351 AC_REQUIRE([CF_GNAT_VERSION])
1352 AC_REQUIRE([CF_DISABLE_GNAT_PROJECTS])
1354 cf_gnat_libraries=no
1357 if test "$enable_gnat_projects" != no ; then
1358 AC_MSG_CHECKING(if GNAT supports project files)
1359 case $cf_cv_gnat_version in
1363 case $cf_cv_system_name in
1367 rm -rf conftest* *~conftest*
1368 if mkdir conftest.src conftest.bin conftest.lib
1371 rm -rf conftest* *~conftest*
1372 cat >>library.gpr <<CF_EOF
1374 Kind := External ("LIB_KIND");
1375 for Library_Name use "ConfTest";
1376 for Object_Dir use ".";
1377 for Library_ALI_Dir use External("LIBRARY_DIR");
1378 for Library_Version use External ("SONAME");
1379 for Library_Kind use Kind;
1380 for Library_Dir use External("BUILD_DIR");
1381 Source_Dir := External ("SOURCE_DIR");
1382 for Source_Dirs use (Source_Dir);
1385 cat >>confpackage.ads <<CF_EOF
1386 package ConfPackage is
1390 cat >>confpackage.adb <<CF_EOF
1392 package body ConfPackage is
1393 procedure conftest is
1395 Text_IO.Put ("Hello World");
1400 if ( $cf_ada_make $ADAFLAGS \
1402 -XBUILD_DIR=`cd ../conftest.bin;pwd` \
1403 -XLIBRARY_DIR=`cd ../conftest.lib;pwd` \
1404 -XSOURCE_DIR=`pwd` \
1405 -XSONAME=libConfTest.so.1 \
1406 -XLIB_KIND=static 1>&AC_FD_CC 2>&1 ) ; then
1407 cf_gnat_projects=yes
1411 if test -f conftest.lib/confpackage.ali
1413 cf_gnat_libraries=yes
1415 rm -rf conftest* *~conftest*
1420 AC_MSG_RESULT($cf_gnat_projects)
1421 fi # enable_gnat_projects
1423 if test $cf_gnat_projects = yes
1425 AC_MSG_CHECKING(if GNAT supports libraries)
1426 AC_MSG_RESULT($cf_gnat_libraries)
1429 if test "$cf_gnat_projects" = yes
1431 USE_OLD_MAKERULES="#"
1432 USE_GNAT_PROJECTS=""
1434 USE_OLD_MAKERULES=""
1435 USE_GNAT_PROJECTS="#"
1438 if test "$cf_gnat_libraries" = yes
1440 USE_GNAT_LIBRARIES=""
1442 USE_GNAT_LIBRARIES="#"
1445 AC_SUBST(USE_OLD_MAKERULES)
1446 AC_SUBST(USE_GNAT_PROJECTS)
1447 AC_SUBST(USE_GNAT_LIBRARIES)
1449 dnl ---------------------------------------------------------------------------
1450 dnl CF_GNAT_SIGINT version: 1 updated: 2011/03/27 20:07:59
1452 dnl Check if gnat supports SIGINT, and presumably tasking. For the latter, it
1453 dnl is noted that gnat may compile a tasking unit even for configurations which
1454 dnl fail at runtime.
1455 AC_DEFUN([CF_GNAT_SIGINT],[
1456 AC_CACHE_CHECK(if GNAT supports SIGINT,cf_cv_gnat_sigint,[
1457 CF_GNAT_TRY_LINK([with Ada.Interrupts.Names;
1461 pragma Warnings (Off); -- the next pragma exists since 3.11p
1462 pragma Unreserve_All_Interrupts;
1463 pragma Warnings (On);
1465 protected Process is
1467 function Continue return Boolean;
1468 pragma Attach_Handler (Stop, Ada.Interrupts.Names.SIGINT);
1470 Done : Boolean := False;
1474 [package body ConfTest is
1475 protected body Process is
1480 function Continue return Boolean is
1486 [cf_cv_gnat_sigint=yes],
1487 [cf_cv_gnat_sigint=no])])
1489 if test $cf_cv_gnat_sigint = yes ; then
1494 AC_SUBST(USE_GNAT_SIGINT)
1496 dnl ---------------------------------------------------------------------------
1497 dnl CF_GNAT_TRY_LINK version: 3 updated: 2011/03/19 14:47:45
1498 dnl ----------------
1499 dnl Verify that a test program compiles/links with GNAT.
1500 dnl $cf_ada_make is set to the program that compiles/links
1501 dnl $ADAFLAGS may be set to the GNAT flags.
1503 dnl $1 is the text of the spec
1504 dnl $2 is the text of the body
1505 dnl $3 is the shell command to execute if successful
1506 dnl $4 is the shell command to execute if not successful
1507 AC_DEFUN([CF_GNAT_TRY_LINK],
1509 rm -rf conftest* *~conftest*
1510 cat >>conftest.ads <<CF_EOF
1513 cat >>conftest.adb <<CF_EOF
1516 if ( $cf_ada_make $ADAFLAGS conftest 1>&AC_FD_CC 2>&1 ) ; then
1517 ifelse($3,, :,[ $3])
1521 rm -rf conftest* *~conftest*
1523 dnl ---------------------------------------------------------------------------
1524 dnl CF_GNAT_TRY_RUN version: 5 updated: 2011/03/19 14:47:45
1526 dnl Verify that a test program compiles and runs with GNAT
1527 dnl $cf_ada_make is set to the program that compiles/links
1528 dnl $ADAFLAGS may be set to the GNAT flags.
1530 dnl $1 is the text of the spec
1531 dnl $2 is the text of the body
1532 dnl $3 is the shell command to execute if successful
1533 dnl $4 is the shell command to execute if not successful
1534 AC_DEFUN([CF_GNAT_TRY_RUN],
1536 rm -rf conftest* *~conftest*
1537 cat >>conftest.ads <<CF_EOF
1540 cat >>conftest.adb <<CF_EOF
1543 if ( $cf_ada_make $ADAFLAGS conftest 1>&AC_FD_CC 2>&1 ) ; then
1544 if ( ./conftest 1>&AC_FD_CC 2>&1 ) ; then
1545 ifelse($3,, :,[ $3])
1552 rm -rf conftest* *~conftest*
1554 dnl ---------------------------------------------------------------------------
1555 dnl CF_GNAT_VERSION version: 22 updated: 2019/12/31 08:53:54
1557 dnl $1 = cache variable to update
1558 dnl $2 = program name
1559 dnl Verify version of GNAT or related tool
1560 AC_DEFUN([CF_GNAT_VERSION],
1562 AC_CACHE_CHECK(for ifelse($2,,gnat,$2) version, cf_cv_gnat_version,[
1563 cf_cv_gnat_version=`ifelse($2,,${cf_ada_make:-gnatmake},$2) --version 2>&1 | \
1564 grep '[[0-9]].[[0-9]][[0-9]]*' |\
1565 sed -e '2,$d' -e 's/[[^0-9 \.]]//g' -e 's/^[[ ]]*//' -e 's/ .*//'`
1567 test -z "$cf_cv_gnat_version" && cf_cv_gnat_version=no
1568 ifelse($1,,,[eval $1=$cf_cv_gnat_version; unset cf_cv_gnat_version])
1570 dnl ---------------------------------------------------------------------------
1571 dnl CF_GNU_SOURCE version: 10 updated: 2018/12/10 20:09:41
1573 dnl Check if we must define _GNU_SOURCE to get a reasonable value for
1574 dnl _XOPEN_SOURCE, upon which many POSIX definitions depend. This is a defect
1575 dnl (or misfeature) of glibc2, which breaks portability of many applications,
1576 dnl since it is interwoven with GNU extensions.
1578 dnl Well, yes we could work around it...
1581 dnl $1 is the nominal value for _XOPEN_SOURCE
1582 AC_DEFUN([CF_GNU_SOURCE],
1584 cf_gnu_xopen_source=ifelse($1,,500,$1)
1586 AC_CACHE_CHECK(if this is the GNU C library,cf_cv_gnu_library,[
1587 AC_TRY_COMPILE([#include <sys/types.h>],[
1588 #if __GLIBC__ > 0 && __GLIBC_MINOR__ >= 0
1590 #elif __NEWLIB__ > 0 && __NEWLIB_MINOR__ >= 0
1593 # error not GNU C library
1595 [cf_cv_gnu_library=yes],
1596 [cf_cv_gnu_library=no])
1599 if test x$cf_cv_gnu_library = xyes; then
1601 # With glibc 2.19 (13 years after this check was begun), _DEFAULT_SOURCE
1602 # was changed to help a little. newlib incorporated the change about 4
1604 AC_CACHE_CHECK(if _DEFAULT_SOURCE can be used as a basis,cf_cv_gnu_library_219,[
1606 CF_APPEND_TEXT(CPPFLAGS,-D_DEFAULT_SOURCE)
1607 AC_TRY_COMPILE([#include <sys/types.h>],[
1608 #if (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 19) || (__GLIBC__ > 2)
1610 #elif (__NEWLIB__ == 2 && __NEWLIB_MINOR__ >= 4) || (__GLIBC__ > 3)
1613 # error GNU C library __GLIBC__.__GLIBC_MINOR__ is too old
1615 [cf_cv_gnu_library_219=yes],
1616 [cf_cv_gnu_library_219=no])
1620 if test "x$cf_cv_gnu_library_219" = xyes; then
1622 AC_CACHE_CHECK(if _XOPEN_SOURCE=$cf_gnu_xopen_source works with _DEFAULT_SOURCE,cf_cv_gnu_dftsrc_219,[
1623 CF_ADD_CFLAGS(-D_DEFAULT_SOURCE -D_XOPEN_SOURCE=$cf_gnu_xopen_source)
1626 #include <sys/types.h>
1628 #if (_XOPEN_SOURCE >= $cf_gnu_xopen_source) && (MB_LEN_MAX > 1)
1631 # error GNU C library is too old
1633 [cf_cv_gnu_dftsrc_219=yes],
1634 [cf_cv_gnu_dftsrc_219=no])
1636 test "x$cf_cv_gnu_dftsrc_219" = "xyes" || CPPFLAGS="$cf_save"
1638 cf_cv_gnu_dftsrc_219=maybe
1641 if test "x$cf_cv_gnu_dftsrc_219" != xyes; then
1643 AC_CACHE_CHECK(if we must define _GNU_SOURCE,cf_cv_gnu_source,[
1644 AC_TRY_COMPILE([#include <sys/types.h>],[
1645 #ifndef _XOPEN_SOURCE
1646 #error expected _XOPEN_SOURCE to be defined
1648 [cf_cv_gnu_source=no],
1649 [cf_save="$CPPFLAGS"
1650 CF_ADD_CFLAGS(-D_GNU_SOURCE)
1651 AC_TRY_COMPILE([#include <sys/types.h>],[
1652 #ifdef _XOPEN_SOURCE
1653 #error expected _XOPEN_SOURCE to be undefined
1655 [cf_cv_gnu_source=no],
1656 [cf_cv_gnu_source=yes])
1661 if test "$cf_cv_gnu_source" = yes
1663 AC_CACHE_CHECK(if we should also define _DEFAULT_SOURCE,cf_cv_default_source,[
1664 CF_APPEND_TEXT(CPPFLAGS,-D_GNU_SOURCE)
1665 AC_TRY_COMPILE([#include <sys/types.h>],[
1666 #ifdef _DEFAULT_SOURCE
1667 #error expected _DEFAULT_SOURCE to be undefined
1669 [cf_cv_default_source=no],
1670 [cf_cv_default_source=yes])
1672 if test "$cf_cv_default_source" = yes
1674 CF_APPEND_TEXT(CPPFLAGS,-D_DEFAULT_SOURCE)
1681 dnl ---------------------------------------------------------------------------
1682 dnl CF_HEADER_PATH version: 13 updated: 2015/04/15 19:08:48
1684 dnl Construct a search-list of directories for a nonstandard header-file
1687 dnl $1 = the variable to return as result
1688 dnl $2 = the package name
1689 AC_DEFUN([CF_HEADER_PATH],
1693 # collect the current set of include-directories from compiler flags
1694 cf_header_path_list=""
1695 if test -n "${CFLAGS}${CPPFLAGS}" ; then
1696 for cf_header_path in $CPPFLAGS $CFLAGS
1698 case $cf_header_path in
1700 cf_header_path=`echo ".$cf_header_path" |sed -e 's/^...//' -e 's,/include$,,'`
1701 CF_ADD_SUBDIR_PATH($1,$2,include,$cf_header_path,NONE)
1702 cf_header_path_list="$cf_header_path_list [$]$1"
1708 # add the variations for the package we are looking for
1709 CF_SUBDIR_PATH($1,$2,include)
1711 test "$includedir" != NONE && \
1712 test "$includedir" != "/usr/include" && \
1713 test -d "$includedir" && {
1714 test -d $includedir && $1="[$]$1 $includedir"
1715 test -d $includedir/$2 && $1="[$]$1 $includedir/$2"
1718 test "$oldincludedir" != NONE && \
1719 test "$oldincludedir" != "/usr/include" && \
1720 test -d "$oldincludedir" && {
1721 test -d $oldincludedir && $1="[$]$1 $oldincludedir"
1722 test -d $oldincludedir/$2 && $1="[$]$1 $oldincludedir/$2"
1725 $1="[$]$1 $cf_header_path_list"
1727 dnl ---------------------------------------------------------------------------
1728 dnl CF_HELP_MESSAGE version: 4 updated: 2019/12/31 08:53:54
1730 dnl Insert text into the help-message, for readability, from AC_ARG_WITH.
1731 AC_DEFUN([CF_HELP_MESSAGE],
1732 [CF_ACVERSION_CHECK(2.53,[],[
1733 AC_DIVERT_HELP($1)])dnl
1735 dnl ---------------------------------------------------------------------------
1736 dnl CF_INCLUDE_DIRS version: 10 updated: 2014/09/19 20:58:42
1738 dnl Construct the list of include-options according to whether we're building
1739 dnl in the source directory or using '--srcdir=DIR' option.
1740 AC_DEFUN([CF_INCLUDE_DIRS],
1742 if test "$srcdir" != "."; then
1743 CPPFLAGS="-I\${srcdir}/../include $CPPFLAGS"
1745 CPPFLAGS="-I../include $CPPFLAGS"
1746 if test "$srcdir" != "."; then
1747 CPPFLAGS="-I\${srcdir} $CPPFLAGS"
1749 CPPFLAGS="-I. $CPPFLAGS"
1752 dnl ---------------------------------------------------------------------------
1753 dnl CF_INSTALL_OPTS version: 2 updated: 2018/08/18 12:19:21
1755 dnl prompt for/fill-in useful install-program options
1756 AC_DEFUN([CF_INSTALL_OPTS],
1762 dnl ---------------------------------------------------------------------------
1763 dnl CF_INSTALL_OPT_O version: 2 updated: 2015/05/15 19:45:35
1764 dnl ----------------
1765 dnl Almost all "install" programs default to the current user's ownership.
1766 dnl Almost - MINIX is an exception.
1767 AC_DEFUN([CF_INSTALL_OPT_O],
1769 AC_MSG_CHECKING(if install needs to be told about ownership)
1770 case `$ac_config_guess` in
1779 AC_MSG_RESULT($with_install_o)
1780 if test "x$with_install_o" = xyes
1782 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'`
1787 AC_SUBST(INSTALL_OPT_O)
1789 dnl ---------------------------------------------------------------------------
1790 dnl CF_INSTALL_OPT_P version: 1 updated: 2018/08/18 12:19:21
1791 dnl ----------------
1792 dnl Some install-programs accept a "-p" option to preserve file modification
1793 dnl timestamps. That can be useful as an install option, as well as a way to
1794 dnl avoid the need for ranlib after copying a static archive.
1795 AC_DEFUN([CF_INSTALL_OPT_P],
1797 : ${INSTALL:=install}
1798 AC_CACHE_CHECK(if install accepts -p option, cf_cv_install_p,[
1803 if $INSTALL -p conftest.in conftest.out 2>/dev/null
1805 if test -f conftest.out/conftest.in
1807 test conftest.in -nt conftest.out/conftest.in 2>conftest.err && \
1808 test conftest.out/conftest.in -nt conftest.in 2>conftest.err
1809 if test -s conftest.err
1824 dnl ---------------------------------------------------------------------------
1825 dnl CF_INSTALL_OPT_S version: 2 updated: 2018/08/18 12:19:21
1826 dnl ----------------
1827 dnl By default, we should strip executables which are installed, but leave the
1828 dnl ability to suppress that for unit-testing.
1829 AC_DEFUN([CF_INSTALL_OPT_S],
1831 AC_MSG_CHECKING(if you want to install stripped executables)
1832 CF_ARG_DISABLE(stripping,
1833 [ --disable-stripping do not strip (debug info) installed executables],
1834 [with_stripping=no],
1835 [with_stripping=yes])
1836 AC_MSG_RESULT($with_stripping)
1838 if test "$with_stripping" = yes
1844 AC_SUBST(INSTALL_OPT_S)
1846 dnl ---------------------------------------------------------------------------
1847 dnl CF_INTEL_COMPILER version: 7 updated: 2015/04/12 15:39:00
1848 dnl -----------------
1849 dnl Check if the given compiler is really the Intel compiler for Linux. It
1850 dnl tries to imitate gcc, but does not return an error when it finds a mismatch
1851 dnl between prototypes, e.g., as exercised by CF_MISSING_CHECK.
1853 dnl This macro should be run "soon" after AC_PROG_CC or AC_PROG_CPLUSPLUS, to
1854 dnl ensure that it is not mistaken for gcc/g++. It is normally invoked from
1855 dnl the wrappers for gcc and g++ warnings.
1857 dnl $1 = GCC (default) or GXX
1858 dnl $2 = INTEL_COMPILER (default) or INTEL_CPLUSPLUS
1859 dnl $3 = CFLAGS (default) or CXXFLAGS
1860 AC_DEFUN([CF_INTEL_COMPILER],[
1861 AC_REQUIRE([AC_CANONICAL_HOST])
1862 ifelse([$2],,INTEL_COMPILER,[$2])=no
1864 if test "$ifelse([$1],,[$1],GCC)" = yes ; then
1867 AC_MSG_CHECKING(if this is really Intel ifelse([$1],GXX,C++,C) compiler)
1868 cf_save_CFLAGS="$ifelse([$3],,CFLAGS,[$3])"
1869 ifelse([$3],,CFLAGS,[$3])="$ifelse([$3],,CFLAGS,[$3]) -no-gcc"
1871 #ifdef __INTEL_COMPILER
1875 ],[ifelse([$2],,INTEL_COMPILER,[$2])=yes
1876 cf_save_CFLAGS="$cf_save_CFLAGS -we147"
1878 ifelse([$3],,CFLAGS,[$3])="$cf_save_CFLAGS"
1879 AC_MSG_RESULT($ifelse([$2],,INTEL_COMPILER,[$2]))
1884 dnl ---------------------------------------------------------------------------
1885 dnl CF_LARGEFILE version: 11 updated: 2018/06/20 20:23:13
1887 dnl Add checks for large file support.
1888 AC_DEFUN([CF_LARGEFILE],[
1889 ifdef([AC_FUNC_FSEEKO],[
1891 if test "$enable_largefile" != no ; then
1894 # Normally we would collect these definitions in the config.h,
1895 # but (like _XOPEN_SOURCE), some environments rely on having these
1896 # defined before any of the system headers are included. Another
1897 # case comes up with C++, e.g., on AIX the compiler compiles the
1898 # header files by themselves before looking at the body files it is
1899 # told to compile. For ncurses, those header files do not include
1901 if test "$ac_cv_sys_large_files" != no
1903 CF_APPEND_TEXT(CPPFLAGS,-D_LARGE_FILES)
1905 if test "$ac_cv_sys_largefile_source" != no
1907 CF_APPEND_TEXT(CPPFLAGS,-D_LARGEFILE_SOURCE)
1909 if test "$ac_cv_sys_file_offset_bits" != no
1911 CF_APPEND_TEXT(CPPFLAGS,-D_FILE_OFFSET_BITS=$ac_cv_sys_file_offset_bits)
1914 AC_CACHE_CHECK(whether to use struct dirent64, cf_cv_struct_dirent64,[
1916 #pragma GCC diagnostic error "-Wincompatible-pointer-types"
1917 #include <sys/types.h>
1920 /* if transitional largefile support is setup, this is true */
1921 extern struct dirent64 * readdir(DIR *);
1922 struct dirent64 *x = readdir((DIR *)0);
1923 struct dirent *y = readdir((DIR *)0);
1926 [cf_cv_struct_dirent64=yes],
1927 [cf_cv_struct_dirent64=no])
1929 test "$cf_cv_struct_dirent64" = yes && AC_DEFINE(HAVE_STRUCT_DIRENT64,1,[Define to 1 if we have struct dirent64])
1933 dnl ---------------------------------------------------------------------------
1934 dnl CF_LD_RPATH_OPT version: 8 updated: 2018/08/18 16:36:35
1936 dnl For the given system and compiler, find the compiler flags to pass to the
1937 dnl loader to use the "rpath" feature.
1938 AC_DEFUN([CF_LD_RPATH_OPT],
1940 AC_REQUIRE([CF_CHECK_CACHE])
1943 if test "x$cf_cv_enable_rpath" != xno
1945 AC_MSG_CHECKING(for an rpath option)
1946 case $cf_cv_system_name in
1948 if test "$GCC" = yes; then
1949 LD_RPATH_OPT="-Wl,-rpath,"
1951 LD_RPATH_OPT="-rpath "
1954 (linux*|gnu*|k*bsd*-gnu|freebsd*)
1955 LD_RPATH_OPT="-Wl,-rpath,"
1957 (openbsd[[2-9]].*|mirbsd*)
1958 LD_RPATH_OPT="-Wl,-rpath,"
1961 LD_RPATH_OPT="-rpath "
1964 LD_RPATH_OPT="-Wl,-rpath,"
1967 LD_RPATH_OPT="-rpath "
1975 AC_MSG_RESULT($LD_RPATH_OPT)
1977 case "x$LD_RPATH_OPT" in
1979 AC_MSG_CHECKING(if we need a space after rpath option)
1980 cf_save_LIBS="$LIBS"
1981 CF_ADD_LIBS(${LD_RPATH_OPT}$libdir)
1982 AC_TRY_LINK(, , cf_rpath_space=no, cf_rpath_space=yes)
1983 LIBS="$cf_save_LIBS"
1984 AC_MSG_RESULT($cf_rpath_space)
1985 test "$cf_rpath_space" = yes && LD_RPATH_OPT="$LD_RPATH_OPT "
1990 dnl ---------------------------------------------------------------------------
1991 dnl CF_LIBRARY_PATH version: 10 updated: 2015/04/15 19:08:48
1993 dnl Construct a search-list of directories for a nonstandard library-file
1996 dnl $1 = the variable to return as result
1997 dnl $2 = the package name
1998 AC_DEFUN([CF_LIBRARY_PATH],
2001 cf_library_path_list=""
2002 if test -n "${LDFLAGS}${LIBS}" ; then
2003 for cf_library_path in $LDFLAGS $LIBS
2005 case $cf_library_path in
2007 cf_library_path=`echo ".$cf_library_path" |sed -e 's/^...//' -e 's,/lib$,,'`
2008 CF_ADD_SUBDIR_PATH($1,$2,lib,$cf_library_path,NONE)
2009 cf_library_path_list="$cf_library_path_list [$]$1"
2015 CF_SUBDIR_PATH($1,$2,lib)
2017 $1="$cf_library_path_list [$]$1"
2019 dnl ---------------------------------------------------------------------------
2020 dnl CF_LIB_PREFIX version: 12 updated: 2015/10/17 19:03:33
2022 dnl Compute the library-prefix for the given host system
2023 dnl $1 = variable to set
2024 define([CF_LIB_PREFIX],
2026 case $cf_cv_system_name in
2028 if test "$DFT_LWR_MODEL" = libtool; then
2034 (*) LIB_PREFIX='lib'
2037 ifelse($1,,,[$1=$LIB_PREFIX])
2038 AC_SUBST(LIB_PREFIX)
2040 dnl ---------------------------------------------------------------------------
2041 dnl CF_LIB_SUFFIX version: 25 updated: 2015/04/17 21:13:04
2043 dnl Compute the library file-suffix from the given model name
2045 dnl $2 = variable to set (the nominal library suffix)
2046 dnl $3 = dependency variable to set (actual filename)
2047 dnl The variable $LIB_SUFFIX, if set, prepends the variable to set.
2048 AC_DEFUN([CF_LIB_SUFFIX],
2064 case $cf_cv_system_name in
2069 (cygwin*|msys*|mingw*)
2100 if test -n "${LIB_SUFFIX}${EXTRA_SUFFIX}"
2102 $2="${LIB_SUFFIX}${EXTRA_SUFFIX}[$]{$2}"
2103 $3="${LIB_SUFFIX}${EXTRA_SUFFIX}[$]{$3}"
2106 dnl ---------------------------------------------------------------------------
2107 dnl CF_LIB_TYPE version: 5 updated: 2015/04/17 21:13:04
2109 dnl Compute the string to append to -library from the given model name
2111 dnl $2 = variable to set
2112 dnl The variable $LIB_SUFFIX, if set, prepends the variable to set.
2113 AC_DEFUN([CF_LIB_TYPE],
2119 (profile) $2='_p' ;;
2122 test -n "$LIB_SUFFIX" && $2="${LIB_SUFFIX}[$]{$2}"
2124 dnl ---------------------------------------------------------------------------
2125 dnl CF_LINK_DATAONLY version: 12 updated: 2017/07/23 17:46:07
2126 dnl ----------------
2127 dnl Some systems have a non-ANSI linker that doesn't pull in modules that have
2128 dnl only data (i.e., no functions), for example NeXT. On those systems we'll
2129 dnl have to provide wrappers for global tables to ensure they're linked
2131 AC_DEFUN([CF_LINK_DATAONLY],
2133 AC_MSG_CHECKING([if data-only library module links])
2134 AC_CACHE_VAL(cf_cv_link_dataonly,[
2136 cat >conftest.$ac_ext <<EOF
2137 #line __oline__ "configure"
2138 int testdata[[3]] = { 123, 456, 789 };
2140 if AC_TRY_EVAL(ac_compile) ; then
2141 mv conftest.o data.o && \
2142 ( $AR $ARFLAGS conftest.a data.o ) 2>&AC_FD_CC 1>/dev/null
2144 rm -f conftest.$ac_ext data.o
2145 cat >conftest.$ac_ext <<EOF
2146 #line __oline__ "configure"
2150 ${cf_cv_main_return:-return}(1); /* I'm told this linker is broken */
2152 extern int testdata[[3]];
2153 return testdata[[0]] == 123
2154 && testdata[[1]] == 456
2155 && testdata[[2]] == 789;
2159 if AC_TRY_EVAL(ac_compile); then
2160 mv conftest.o func.o && \
2161 ( $AR $ARFLAGS conftest.a func.o ) 2>&AC_FD_CC 1>/dev/null
2163 rm -f conftest.$ac_ext func.o
2164 ( eval $RANLIB conftest.a ) 2>&AC_FD_CC >/dev/null
2166 LIBS="conftest.a $LIBS"
2170 extern int testfunc();
2171 ${cf_cv_main_return:-return} (!testfunc());
2174 [cf_cv_link_dataonly=yes],
2175 [cf_cv_link_dataonly=no],
2176 [cf_cv_link_dataonly=unknown])
2179 AC_MSG_RESULT($cf_cv_link_dataonly)
2181 if test "$cf_cv_link_dataonly" = no ; then
2182 AC_DEFINE(BROKEN_LINKER,1,[if data-only library module does not link])
2187 dnl ---------------------------------------------------------------------------
2188 dnl CF_MAKEFLAGS version: 18 updated: 2018/02/21 21:26:03
2190 dnl Some 'make' programs support ${MAKEFLAGS}, some ${MFLAGS}, to pass 'make'
2191 dnl options to lower-levels. It's very useful for "make -n" -- if we have it.
2192 dnl (GNU 'make' does both, something POSIX 'make', which happens to make the
2193 dnl ${MAKEFLAGS} variable incompatible because it adds the assignments :-)
2194 AC_DEFUN([CF_MAKEFLAGS],
2196 AC_CACHE_CHECK(for makeflags variable, cf_cv_makeflags,[
2198 for cf_option in '-${MAKEFLAGS}' '${MFLAGS}'
2200 cat >cf_makeflags.tmp <<CF_EOF
2203 @ echo '.$cf_option'
2205 cf_result=`${MAKE:-make} -k -f cf_makeflags.tmp 2>/dev/null | fgrep -v "ing directory" | sed -e 's,[[ ]]*$,,'`
2206 case "$cf_result" in
2208 cf_result=`${MAKE:-make} -k -f cf_makeflags.tmp CC=cc 2>/dev/null`
2209 case "$cf_result" in
2210 (.*CC=*) cf_cv_makeflags=
2212 (*) cf_cv_makeflags=$cf_option
2220 CF_MSG_LOG(given option \"$cf_option\", no match \"$cf_result\")
2224 rm -f cf_makeflags.tmp
2227 AC_SUBST(cf_cv_makeflags)
2229 dnl ---------------------------------------------------------------------------
2230 dnl CF_MAKE_TAGS version: 6 updated: 2010/10/23 15:52:32
2232 dnl Generate tags/TAGS targets for makefiles. Do not generate TAGS if we have
2233 dnl a monocase filesystem.
2234 AC_DEFUN([CF_MAKE_TAGS],[
2235 AC_REQUIRE([CF_MIXEDCASE_FILENAMES])
2237 AC_CHECK_PROGS(CTAGS, exctags ctags)
2238 AC_CHECK_PROGS(ETAGS, exetags etags)
2240 AC_CHECK_PROG(MAKE_LOWER_TAGS, ${CTAGS:-ctags}, yes, no)
2242 if test "$cf_cv_mixedcase" = yes ; then
2243 AC_CHECK_PROG(MAKE_UPPER_TAGS, ${ETAGS:-etags}, yes, no)
2248 if test "$MAKE_UPPER_TAGS" = yes ; then
2254 if test "$MAKE_LOWER_TAGS" = yes ; then
2263 AC_SUBST(MAKE_UPPER_TAGS)
2264 AC_SUBST(MAKE_LOWER_TAGS)
2266 dnl ---------------------------------------------------------------------------
2267 dnl CF_MIXEDCASE_FILENAMES version: 7 updated: 2015/04/12 15:39:00
2268 dnl ----------------------
2269 dnl Check if the file-system supports mixed-case filenames. If we're able to
2270 dnl create a lowercase name and see it as uppercase, it doesn't support that.
2271 AC_DEFUN([CF_MIXEDCASE_FILENAMES],
2273 AC_CACHE_CHECK(if filesystem supports mixed-case filenames,cf_cv_mixedcase,[
2274 if test "$cross_compiling" = yes ; then
2275 case $target_alias in
2276 (*-os2-emx*|*-msdosdjgpp*|*-cygwin*|*-msys*|*-mingw*|*-uwin*)
2284 rm -f conftest CONFTEST
2286 if test -f CONFTEST ; then
2291 rm -f conftest CONFTEST
2294 test "$cf_cv_mixedcase" = yes && AC_DEFINE(MIXEDCASE_FILENAMES,1,[Define to 1 if filesystem supports mixed-case filenames.])
2296 dnl ---------------------------------------------------------------------------
2297 dnl CF_MKSTEMP version: 10 updated: 2017/01/21 11:12:16
2299 dnl Check for a working mkstemp. This creates two files, checks that they are
2300 dnl successfully created and distinct (AmigaOS apparently fails on the last).
2301 AC_DEFUN([CF_MKSTEMP],[
2305 AC_CACHE_CHECK(for working mkstemp, cf_cv_func_mkstemp,[
2308 #include <sys/types.h>
2309 #ifdef HAVE_UNISTD_H
2315 #include <sys/stat.h>
2318 char *tmpl = "conftestXXXXXX";
2326 for (n = 0; n < 2; ++n) {
2327 strcpy(name[n], tmpl);
2328 if ((fd = mkstemp(name[n])) >= 0) {
2329 if (!strcmp(name[n], tmpl)
2330 || stat(name[n], &sb) != 0
2331 || (sb.st_mode & S_IFMT) != S_IFREG
2332 || (sb.st_mode & 077) != 0) {
2339 && !strcmp(name[0], name[1]))
2341 ${cf_cv_main_return:-return}(result);
2343 ],[cf_cv_func_mkstemp=yes
2344 ],[cf_cv_func_mkstemp=no
2345 ],[cf_cv_func_mkstemp=maybe])
2347 if test "x$cf_cv_func_mkstemp" = xmaybe ; then
2348 AC_CHECK_FUNC(mkstemp)
2350 if test "x$cf_cv_func_mkstemp" = xyes || test "x$ac_cv_func_mkstemp" = xyes ; then
2351 AC_DEFINE(HAVE_MKSTEMP,1,[Define to 1 if mkstemp() is available and working.])
2354 dnl ---------------------------------------------------------------------------
2355 dnl CF_MSG_LOG version: 5 updated: 2010/10/23 15:52:32
2357 dnl Write a debug message to config.log, along with the line number in the
2358 dnl configure script.
2359 AC_DEFUN([CF_MSG_LOG],[
2360 echo "${as_me:-configure}:__oline__: testing $* ..." 1>&AC_FD_CC
2362 dnl ---------------------------------------------------------------------------
2363 dnl CF_NCURSES_ADDON version: 5 updated: 2015/04/26 18:06:58
2364 dnl ----------------
2365 dnl Configure an ncurses add-on, built outside the ncurses tree.
2366 AC_DEFUN([CF_NCURSES_ADDON],[
2367 AC_REQUIRE([CF_NCURSES_CONFIG])
2369 AC_PROVIDE([CF_SUBST_NCURSES_VERSION])
2371 AC_MSG_CHECKING(if you want wide-character code)
2372 AC_ARG_ENABLE(widec,
2373 [ --enable-widec compile with wide-char/UTF-8 code],
2374 [with_widec=$enableval],
2376 AC_MSG_RESULT($with_widec)
2377 if test "$with_widec" = yes ; then
2379 CF_NCURSES_CONFIG(ncursesw)
2381 CF_NCURSES_CONFIG(ncurses)
2384 if test "$NCURSES_CONFIG_PKG" != none ; then
2385 cf_version=`$PKG_CONFIG --modversion $NCURSES_CONFIG_PKG 2>/dev/null`
2387 NCURSES_MAJOR=`echo "$cf_version" | sed -e 's/\..*//'`
2388 NCURSES_MINOR=`echo "$cf_version" | sed -e 's/^[[0-9]][[0-9]]*\.//' -e 's/\..*//'`
2389 NCURSES_PATCH=`echo "$cf_version" | sed -e 's/^[[0-9]][[0-9]]*\.[[0-9]][[0-9]]*\.//'`
2391 cf_cv_abi_version=`$PKG_CONFIG --variable=abi_version $NCURSES_CONFIG_PKG 2>/dev/null`
2392 if test -z "$cf_cv_abi_version"
2394 cf_cv_abi_version=`$PKG_CONFIG --variable=major_version $NCURSES_CONFIG_PKG 2>/dev/null`
2397 elif test "$NCURSES_CONFIG" != none ; then
2399 cf_version=`$NCURSES_CONFIG --version 2>/dev/null`
2401 NCURSES_MAJOR=`echo "$cf_version" | sed -e 's/\..*//'`
2402 NCURSES_MINOR=`echo "$cf_version" | sed -e 's/^[[0-9]][[0-9]]*\.//' -e 's/\..*//'`
2403 NCURSES_PATCH=`echo "$cf_version" | sed -e 's/^[[0-9]][[0-9]]*\.[[0-9]][[0-9]]*\.//'`
2405 # ABI version is not available from headers
2406 cf_cv_abi_version=`$NCURSES_CONFIG --abi-version 2>/dev/null`
2410 for cf_name in MAJOR MINOR PATCH
2412 cat >conftest.$ac_ext <<CF_EOF
2413 #include <${cf_cv_ncurses_header:-curses.h}>
2414 AUTOCONF_$cf_name NCURSES_VERSION_$cf_name
2416 cf_try="$ac_cpp conftest.$ac_ext 2>&5 | fgrep AUTOCONF_$cf_name >conftest.out"
2418 if test -f conftest.out ; then
2419 cf_result=`cat conftest.out | sed -e "s/^.*AUTOCONF_$cf_name[[ ]][[ ]]*//"`
2420 eval NCURSES_$cf_name=\"$cf_result\"
2421 # cat conftest.$ac_ext
2426 cf_cv_abi_version=${NCURSES_MAJOR}
2430 cf_cv_rel_version=${NCURSES_MAJOR}.${NCURSES_MINOR}
2432 dnl Show the computed version, for logging
2433 cf_cv_timestamp=`date`
2435 AC_MSG_RESULT(Configuring NCURSES $cf_cv_rel_version ABI $cf_cv_abi_version ($cf_cv_timestamp))
2437 dnl We need these values in the generated headers
2438 AC_SUBST(NCURSES_MAJOR)
2439 AC_SUBST(NCURSES_MINOR)
2440 AC_SUBST(NCURSES_PATCH)
2442 dnl We need these values in the generated makefiles
2443 AC_SUBST(cf_cv_rel_version)
2444 AC_SUBST(cf_cv_abi_version)
2446 dnl FIXME - not needed for Ada95
2447 AC_SUBST(cf_cv_builtin_bool)
2448 AC_SUBST(cf_cv_header_stdbool_h)
2449 AC_SUBST(cf_cv_type_of_bool)dnl
2452 dnl ---------------------------------------------------------------------------
2453 dnl CF_NCURSES_CC_CHECK version: 4 updated: 2007/07/29 10:39:05
2454 dnl -------------------
2455 dnl Check if we can compile with ncurses' header file
2456 dnl $1 is the cache variable to set
2457 dnl $2 is the header-file to include
2458 dnl $3 is the root name (ncurses or ncursesw)
2459 AC_DEFUN([CF_NCURSES_CC_CHECK],[
2461 ]ifelse($3,ncursesw,[
2462 #define _XOPEN_SOURCE_EXTENDED
2463 #undef HAVE_LIBUTF8_H /* in case we used CF_UTF8_LIB */
2464 #define HAVE_LIBUTF8_H /* to force ncurses' header file to use cchar_t */
2467 #ifdef NCURSES_VERSION
2468 ]ifelse($3,ncursesw,[
2473 printf("%s\n", NCURSES_VERSION);
2485 dnl ---------------------------------------------------------------------------
2486 dnl CF_NCURSES_CONFIG version: 21 updated: 2018/06/20 20:23:13
2487 dnl -----------------
2488 dnl Tie together the configure-script macros for ncurses, preferring these in
2490 dnl a) ".pc" files for pkg-config, using $NCURSES_CONFIG_PKG
2491 dnl b) the "-config" script from ncurses, using $NCURSES_CONFIG
2492 dnl c) just plain libraries
2494 dnl $1 is the root library name (default: "ncurses")
2495 AC_DEFUN([CF_NCURSES_CONFIG],[
2496 AC_REQUIRE([CF_PKG_CONFIG])
2497 cf_ncuconfig_root=ifelse($1,,ncurses,$1)
2498 cf_have_ncuconfig=no
2500 if test "x${PKG_CONFIG:=none}" != xnone; then
2501 AC_MSG_CHECKING(pkg-config for $cf_ncuconfig_root)
2502 if "$PKG_CONFIG" --exists $cf_ncuconfig_root ; then
2505 AC_MSG_CHECKING(if the $cf_ncuconfig_root package files work)
2506 cf_have_ncuconfig=unknown
2508 cf_save_CPPFLAGS="$CPPFLAGS"
2509 cf_save_LIBS="$LIBS"
2511 CF_ADD_CFLAGS(`$PKG_CONFIG --cflags $cf_ncuconfig_root`)
2512 CF_ADD_LIBS(`$PKG_CONFIG --libs $cf_ncuconfig_root`)
2514 AC_TRY_LINK([#include <${cf_cv_ncurses_header:-curses.h}>],
2515 [initscr(); mousemask(0,0); tgoto((char *)0, 0, 0);],
2516 [AC_TRY_RUN([#include <${cf_cv_ncurses_header:-curses.h}>
2518 { char *xx = curses_version(); return (xx == 0); }],
2519 [cf_have_ncuconfig=yes],
2520 [cf_have_ncuconfig=no],
2521 [cf_have_ncuconfig=maybe])],
2522 [cf_have_ncuconfig=no])
2523 AC_MSG_RESULT($cf_have_ncuconfig)
2524 test "$cf_have_ncuconfig" = maybe && cf_have_ncuconfig=yes
2525 if test "$cf_have_ncuconfig" != "yes"
2527 CPPFLAGS="$cf_save_CPPFLAGS"
2528 LIBS="$cf_save_LIBS"
2529 NCURSES_CONFIG_PKG=none
2531 AC_DEFINE(NCURSES,1,[Define to 1 if we are using ncurses headers/libraries])
2532 NCURSES_CONFIG_PKG=$cf_ncuconfig_root
2538 NCURSES_CONFIG_PKG=none
2541 NCURSES_CONFIG_PKG=none
2544 if test "x$cf_have_ncuconfig" = "xno"; then
2545 cf_ncurses_config="${cf_ncuconfig_root}${NCURSES_CONFIG_SUFFIX}-config"; echo "Looking for ${cf_ncurses_config}"
2547 CF_ACVERSION_CHECK(2.52,
2548 [AC_CHECK_TOOLS(NCURSES_CONFIG, ${cf_ncurses_config} ${cf_ncuconfig_root}6-config ${cf_ncuconfig_root}6-config ${cf_ncuconfig_root}5-config, none)],
2549 [AC_PATH_PROGS(NCURSES_CONFIG, ${cf_ncurses_config} ${cf_ncuconfig_root}6-config ${cf_ncuconfig_root}6-config ${cf_ncuconfig_root}5-config, none)])
2551 if test "$NCURSES_CONFIG" != none ; then
2553 CF_ADD_CFLAGS(`$NCURSES_CONFIG --cflags`)
2554 CF_ADD_LIBS(`$NCURSES_CONFIG --libs`)
2556 # even with config script, some packages use no-override for curses.h
2557 CF_CURSES_HEADER(ifelse($1,,ncurses,$1))
2559 dnl like CF_NCURSES_CPPFLAGS
2560 AC_DEFINE(NCURSES,1,[Define to 1 if we are using ncurses headers/libraries])
2562 dnl like CF_NCURSES_LIBS
2563 CF_UPPER(cf_nculib_ROOT,HAVE_LIB$cf_ncuconfig_root)
2564 AC_DEFINE_UNQUOTED($cf_nculib_ROOT)
2566 dnl like CF_NCURSES_VERSION
2567 cf_cv_ncurses_version=`$NCURSES_CONFIG --version`
2571 CF_NCURSES_CPPFLAGS(ifelse($1,,ncurses,$1))
2572 CF_NCURSES_LIBS(ifelse($1,,ncurses,$1))
2579 dnl ---------------------------------------------------------------------------
2580 dnl CF_NCURSES_CPPFLAGS version: 21 updated: 2012/10/06 08:57:51
2581 dnl -------------------
2582 dnl Look for the SVr4 curses clone 'ncurses' in the standard places, adjusting
2583 dnl the CPPFLAGS variable so we can include its header.
2585 dnl The header files may be installed as either curses.h, or ncurses.h (would
2586 dnl be obsolete, except that some packagers prefer this name to distinguish it
2587 dnl from a "native" curses implementation). If not installed for overwrite,
2588 dnl the curses.h file would be in an ncurses subdirectory (e.g.,
2589 dnl /usr/include/ncurses), but someone may have installed overwriting the
2590 dnl vendor's curses. Only very old versions (pre-1.9.2d, the first autoconf'd
2591 dnl version) of ncurses don't define either __NCURSES_H or NCURSES_VERSION in
2594 dnl If the installer has set $CFLAGS or $CPPFLAGS so that the ncurses header
2595 dnl is already in the include-path, don't even bother with this, since we cannot
2596 dnl easily determine which file it is. In this case, it has to be <curses.h>.
2598 dnl The optional parameter gives the root name of the library, in case it is
2599 dnl not installed as the default curses library. That is how the
2600 dnl wide-character version of ncurses is installed.
2601 AC_DEFUN([CF_NCURSES_CPPFLAGS],
2602 [AC_REQUIRE([CF_WITH_CURSES_DIR])
2604 AC_PROVIDE([CF_CURSES_CPPFLAGS])dnl
2605 cf_ncuhdr_root=ifelse($1,,ncurses,$1)
2607 test -n "$cf_cv_curses_dir" && \
2608 test "$cf_cv_curses_dir" != "no" && { \
2609 CF_ADD_INCDIR($cf_cv_curses_dir/include/$cf_ncuhdr_root)
2612 AC_CACHE_CHECK(for $cf_ncuhdr_root header in include-path, cf_cv_ncurses_h,[
2613 cf_header_list="$cf_ncuhdr_root/curses.h $cf_ncuhdr_root/ncurses.h"
2614 ( test "$cf_ncuhdr_root" = ncurses || test "$cf_ncuhdr_root" = ncursesw ) && cf_header_list="$cf_header_list curses.h ncurses.h"
2615 for cf_header in $cf_header_list
2617 CF_NCURSES_CC_CHECK(cf_cv_ncurses_h,$cf_header,$1)
2618 test "$cf_cv_ncurses_h" != no && break
2625 # some applications need this, but should check for NCURSES_VERSION
2626 AC_DEFINE(NCURSES,1,[Define to 1 if we are using ncurses headers/libraries])
2630 dnl ---------------------------------------------------------------------------
2631 dnl CF_NCURSES_HEADER version: 4 updated: 2015/04/15 19:08:48
2632 dnl -----------------
2633 dnl Find a "curses" header file, e.g,. "curses.h", or one of the more common
2634 dnl variations of ncurses' installs.
2636 dnl See also CF_CURSES_HEADER, which sets the same cache variable.
2637 AC_DEFUN([CF_NCURSES_HEADER],[
2639 if test "$cf_cv_ncurses_h" != no ; then
2640 cf_cv_ncurses_header=$cf_cv_ncurses_h
2643 AC_CACHE_CHECK(for $cf_ncuhdr_root include-path, cf_cv_ncurses_h2,[
2644 test -n "$verbose" && echo
2645 CF_HEADER_PATH(cf_search,$cf_ncuhdr_root)
2646 test -n "$verbose" && echo search path $cf_search
2647 cf_save2_CPPFLAGS="$CPPFLAGS"
2648 for cf_incdir in $cf_search
2650 CF_ADD_INCDIR($cf_incdir)
2655 CF_NCURSES_CC_CHECK(cf_cv_ncurses_h2,$cf_header,$1)
2656 if test "$cf_cv_ncurses_h2" != no ; then
2657 cf_cv_ncurses_h2=$cf_incdir/$cf_header
2658 test -n "$verbose" && echo $ac_n " ... found $ac_c" 1>&AC_FD_MSG
2661 test -n "$verbose" && echo " ... tested $cf_incdir/$cf_header" 1>&AC_FD_MSG
2663 CPPFLAGS="$cf_save2_CPPFLAGS"
2664 test "$cf_cv_ncurses_h2" != no && break
2666 test "$cf_cv_ncurses_h2" = no && AC_MSG_ERROR(not found)
2669 CF_DIRNAME(cf_1st_incdir,$cf_cv_ncurses_h2)
2670 cf_cv_ncurses_header=`basename $cf_cv_ncurses_h2`
2671 if test `basename $cf_1st_incdir` = $cf_ncuhdr_root ; then
2672 cf_cv_ncurses_header=$cf_ncuhdr_root/$cf_cv_ncurses_header
2674 CF_ADD_INCDIR($cf_1st_incdir)
2678 # Set definitions to allow ifdef'ing for ncurses.h
2680 case $cf_cv_ncurses_header in
2682 AC_DEFINE(HAVE_NCURSES_H,1,[Define to 1 if we have ncurses.h])
2686 case $cf_cv_ncurses_header in
2687 (ncurses/curses.h|ncurses/ncurses.h)
2688 AC_DEFINE(HAVE_NCURSES_NCURSES_H,1,[Define to 1 if we have ncurses/ncurses.h])
2690 (ncursesw/curses.h|ncursesw/ncurses.h)
2691 AC_DEFINE(HAVE_NCURSESW_NCURSES_H,1,[Define to 1 if we have ncursesw/ncurses.h])
2696 dnl ---------------------------------------------------------------------------
2697 dnl CF_NCURSES_LIBS version: 17 updated: 2015/04/15 19:08:48
2699 dnl Look for the ncurses library. This is a little complicated on Linux,
2700 dnl because it may be linked with the gpm (general purpose mouse) library.
2701 dnl Some distributions have gpm linked with (bsd) curses, which makes it
2702 dnl unusable with ncurses. However, we don't want to link with gpm unless
2703 dnl ncurses has a dependency, since gpm is normally set up as a shared library,
2704 dnl and the linker will record a dependency.
2706 dnl The optional parameter gives the root name of the library, in case it is
2707 dnl not installed as the default curses library. That is how the
2708 dnl wide-character version of ncurses is installed.
2709 AC_DEFUN([CF_NCURSES_LIBS],
2710 [AC_REQUIRE([CF_NCURSES_CPPFLAGS])
2712 cf_nculib_root=ifelse($1,,ncurses,$1)
2713 # This works, except for the special case where we find gpm, but
2714 # ncurses is in a nonstandard location via $LIBS, and we really want
2717 cf_ncurses_SAVE="$LIBS"
2718 AC_CHECK_LIB(gpm,Gpm_Open,
2719 [AC_CHECK_LIB(gpm,initscr,
2720 [LIBS="$cf_ncurses_SAVE"],
2721 [cf_ncurses_LIBS="-lgpm"])])
2725 # This is only necessary if you are linking against an obsolete
2726 # version of ncurses (but it should do no harm, since it's static).
2727 if test "$cf_nculib_root" = ncurses ; then
2728 AC_CHECK_LIB(mytinfo,tgoto,[cf_ncurses_LIBS="-lmytinfo $cf_ncurses_LIBS"])
2733 CF_ADD_LIBS($cf_ncurses_LIBS)
2735 if ( test -n "$cf_cv_curses_dir" && test "$cf_cv_curses_dir" != "no" )
2737 CF_ADD_LIBS(-l$cf_nculib_root)
2739 CF_FIND_LIBRARY($cf_nculib_root,$cf_nculib_root,
2740 [#include <${cf_cv_ncurses_header:-curses.h}>],
2745 if test -n "$cf_ncurses_LIBS" ; then
2746 AC_MSG_CHECKING(if we can link $cf_nculib_root without $cf_ncurses_LIBS)
2747 cf_ncurses_SAVE="$LIBS"
2748 for p in $cf_ncurses_LIBS ; do
2749 q=`echo $LIBS | sed -e "s%$p %%" -e "s%$p$%%"`
2750 if test "$q" != "$LIBS" ; then
2754 AC_TRY_LINK([#include <${cf_cv_ncurses_header:-curses.h}>],
2755 [initscr(); mousemask(0,0); tgoto((char *)0, 0, 0);],
2756 [AC_MSG_RESULT(yes)],
2758 LIBS="$cf_ncurses_SAVE"])
2761 CF_UPPER(cf_nculib_ROOT,HAVE_LIB$cf_nculib_root)
2762 AC_DEFINE_UNQUOTED($cf_nculib_ROOT)
2764 dnl ---------------------------------------------------------------------------
2765 dnl CF_NCURSES_VERSION version: 15 updated: 2017/05/09 19:26:10
2766 dnl ------------------
2767 dnl Check for the version of ncurses, to aid in reporting bugs, etc.
2768 dnl Call CF_CURSES_CPPFLAGS first, or CF_NCURSES_CPPFLAGS. We don't use
2769 dnl AC_REQUIRE since that does not work with the shell's if/then/else/fi.
2770 AC_DEFUN([CF_NCURSES_VERSION],
2772 AC_REQUIRE([CF_CURSES_CPPFLAGS])dnl
2773 AC_CACHE_CHECK(for ncurses version, cf_cv_ncurses_version,[
2774 cf_cv_ncurses_version=no
2778 #include <${cf_cv_ncurses_header:-curses.h}>
2782 FILE *fp = fopen("$cf_tempfile", "w");
2783 #ifdef NCURSES_VERSION
2784 # ifdef NCURSES_VERSION_PATCH
2785 fprintf(fp, "%s.%d\n", NCURSES_VERSION, NCURSES_VERSION_PATCH);
2787 fprintf(fp, "%s\n", NCURSES_VERSION);
2791 fprintf(fp, "old\n");
2796 ${cf_cv_main_return:-return}(0);
2798 cf_cv_ncurses_version=`cat $cf_tempfile`],,[
2800 # This will not work if the preprocessor splits the line after the
2801 # Autoconf token. The 'unproto' program does that.
2802 cat > conftest.$ac_ext <<EOF
2803 #include <${cf_cv_ncurses_header:-curses.h}>
2805 #ifdef NCURSES_VERSION
2806 Autoconf NCURSES_VERSION
2814 cf_try="$ac_cpp conftest.$ac_ext 2>&AC_FD_CC | grep '^Autoconf ' >conftest.out"
2816 if test -f conftest.out ; then
2817 cf_out=`cat conftest.out | sed -e 's%^Autoconf %%' -e 's%^[[^"]]*"%%' -e 's%".*%%'`
2818 test -n "$cf_out" && cf_cv_ncurses_version="$cf_out"
2824 test "$cf_cv_ncurses_version" = no || AC_DEFINE(NCURSES,1,[Define to 1 if we are using ncurses headers/libraries])
2826 dnl ---------------------------------------------------------------------------
2827 dnl CF_OBJ_SUBDIR version: 7 updated: 2015/04/17 21:13:04
2829 dnl Compute the object-directory name from the given model name
2830 AC_DEFUN([CF_OBJ_SUBDIR],
2833 (libtool) $2='obj_lo' ;;
2834 (normal) $2='objects' ;;
2835 (debug) $2='obj_g' ;;
2836 (profile) $2='obj_p' ;;
2838 case $cf_cv_system_name in
2846 dnl ---------------------------------------------------------------------------
2847 dnl CF_PATHSEP version: 7 updated: 2015/04/12 15:39:00
2849 dnl Provide a value for the $PATH and similar separator (or amend the value
2850 dnl as provided in autoconf 2.5x).
2851 AC_DEFUN([CF_PATHSEP],
2853 AC_MSG_CHECKING(for PATH separator)
2854 case $cf_cv_system_name in
2855 (os2*) PATH_SEPARATOR=';' ;;
2856 (*) ${PATH_SEPARATOR:=':'} ;;
2858 ifelse([$1],,,[$1=$PATH_SEPARATOR])
2859 AC_SUBST(PATH_SEPARATOR)
2860 AC_MSG_RESULT($PATH_SEPARATOR)
2862 dnl ---------------------------------------------------------------------------
2863 dnl CF_PATH_SYNTAX version: 16 updated: 2015/04/18 08:56:57
2865 dnl Check the argument to see that it looks like a pathname. Rewrite it if it
2866 dnl begins with one of the prefix/exec_prefix variables, and then again if the
2867 dnl result begins with 'NONE'. This is necessary to work around autoconf's
2868 dnl delayed evaluation of those symbols.
2869 AC_DEFUN([CF_PATH_SYNTAX],[
2870 if test "x$prefix" != xNONE; then
2871 cf_path_syntax="$prefix"
2873 cf_path_syntax="$ac_default_prefix"
2877 (.\[$]\(*\)*|.\'*\'*)
2881 (.[[a-zA-Z]]:[[\\/]]*) # OS/2 EMX
2883 (.\[$]{*prefix}*|.\[$]{*dir}*)
2887 $1=`echo [$]$1 | sed -e s%NONE%$cf_path_syntax%`
2892 $1=`echo [$]$1 | sed -e s%NONE%$cf_path_syntax%`
2895 ifelse([$2],,[AC_MSG_ERROR([expected a pathname, not \"[$]$1\"])],$2)
2899 dnl ---------------------------------------------------------------------------
2900 dnl CF_PKG_CONFIG version: 10 updated: 2015/04/26 18:06:58
2902 dnl Check for the package-config program, unless disabled by command-line.
2903 AC_DEFUN([CF_PKG_CONFIG],
2905 AC_MSG_CHECKING(if you want to use pkg-config)
2906 AC_ARG_WITH(pkg-config,
2907 [ --with-pkg-config{=path} enable/disable use of pkg-config],
2908 [cf_pkg_config=$withval],
2909 [cf_pkg_config=yes])
2910 AC_MSG_RESULT($cf_pkg_config)
2912 case $cf_pkg_config in
2917 CF_ACVERSION_CHECK(2.52,
2918 [AC_PATH_TOOL(PKG_CONFIG, pkg-config, none)],
2919 [AC_PATH_PROG(PKG_CONFIG, pkg-config, none)])
2926 test -z "$PKG_CONFIG" && PKG_CONFIG=none
2927 if test "$PKG_CONFIG" != none ; then
2928 CF_PATH_SYNTAX(PKG_CONFIG)
2929 elif test "x$cf_pkg_config" != xno ; then
2930 AC_MSG_WARN(pkg-config is not installed)
2933 AC_SUBST(PKG_CONFIG)
2935 dnl ---------------------------------------------------------------------------
2936 dnl CF_POSIX_C_SOURCE version: 11 updated: 2018/12/31 20:46:17
2937 dnl -----------------
2938 dnl Define _POSIX_C_SOURCE to the given level, and _POSIX_SOURCE if needed.
2940 dnl POSIX.1-1990 _POSIX_SOURCE
2941 dnl POSIX.1-1990 and _POSIX_SOURCE and
2942 dnl POSIX.2-1992 C-Language _POSIX_C_SOURCE=2
2944 dnl POSIX.1b-1993 _POSIX_C_SOURCE=199309L
2945 dnl POSIX.1c-1996 _POSIX_C_SOURCE=199506L
2946 dnl X/Open 2000 _POSIX_C_SOURCE=200112L
2949 dnl $1 is the nominal value for _POSIX_C_SOURCE
2950 AC_DEFUN([CF_POSIX_C_SOURCE],
2951 [AC_REQUIRE([CF_POSIX_VISIBLE])dnl
2953 if test "$cf_cv_posix_visible" = no; then
2955 cf_POSIX_C_SOURCE=ifelse([$1],,199506L,[$1])
2957 cf_save_CFLAGS="$CFLAGS"
2958 cf_save_CPPFLAGS="$CPPFLAGS"
2960 CF_REMOVE_DEFINE(cf_trim_CFLAGS,$cf_save_CFLAGS,_POSIX_C_SOURCE)
2961 CF_REMOVE_DEFINE(cf_trim_CPPFLAGS,$cf_save_CPPFLAGS,_POSIX_C_SOURCE)
2963 AC_CACHE_CHECK(if we should define _POSIX_C_SOURCE,cf_cv_posix_c_source,[
2964 CF_MSG_LOG(if the symbol is already defined go no further)
2965 AC_TRY_COMPILE([#include <sys/types.h>],[
2966 #ifndef _POSIX_C_SOURCE
2969 [cf_cv_posix_c_source=no],
2970 [cf_want_posix_source=no
2971 case .$cf_POSIX_C_SOURCE in
2973 cf_cv_posix_c_source="-D_POSIX_C_SOURCE=$cf_POSIX_C_SOURCE"
2976 cf_cv_posix_c_source="-D_POSIX_C_SOURCE=$cf_POSIX_C_SOURCE"
2977 cf_want_posix_source=yes
2980 cf_want_posix_source=yes
2983 if test "$cf_want_posix_source" = yes ; then
2984 AC_TRY_COMPILE([#include <sys/types.h>],[
2985 #ifdef _POSIX_SOURCE
2988 cf_cv_posix_c_source="$cf_cv_posix_c_source -D_POSIX_SOURCE")
2990 CF_MSG_LOG(ifdef from value $cf_POSIX_C_SOURCE)
2991 CFLAGS="$cf_trim_CFLAGS"
2992 CPPFLAGS="$cf_trim_CPPFLAGS"
2993 CF_APPEND_TEXT(CPPFLAGS,$cf_cv_posix_c_source)
2994 CF_MSG_LOG(if the second compile does not leave our definition intact error)
2995 AC_TRY_COMPILE([#include <sys/types.h>],[
2996 #ifndef _POSIX_C_SOURCE
2999 [cf_cv_posix_c_source=no])
3000 CFLAGS="$cf_save_CFLAGS"
3001 CPPFLAGS="$cf_save_CPPFLAGS"
3005 if test "$cf_cv_posix_c_source" != no ; then
3006 CFLAGS="$cf_trim_CFLAGS"
3007 CPPFLAGS="$cf_trim_CPPFLAGS"
3008 CF_ADD_CFLAGS($cf_cv_posix_c_source)
3011 fi # cf_cv_posix_visible
3014 dnl ---------------------------------------------------------------------------
3015 dnl CF_POSIX_VISIBLE version: 1 updated: 2018/12/31 20:46:17
3016 dnl ----------------
3017 dnl POSIX documents test-macros which an application may set before any system
3018 dnl headers are included to make features available.
3020 dnl Some BSD platforms (originally FreeBSD, but copied by a few others)
3021 dnl diverged from POSIX in 2002 by setting symbols which make all of the most
3022 dnl recent features visible in the system header files unless the application
3023 dnl overrides the corresponding test-macros. Doing that introduces portability
3026 dnl This macro makes a special check for the symbols used for this, to avoid a
3027 dnl conflicting definition.
3028 AC_DEFUN([CF_POSIX_VISIBLE],
3030 AC_CACHE_CHECK(if the POSIX test-macros are already defined,cf_cv_posix_visible,[
3031 AC_TRY_COMPILE([#include <stdio.h>],[
3032 #if defined(__POSIX_VISIBLE) && ((__POSIX_VISIBLE - 0L) > 0) \
3033 && defined(__XSI_VISIBLE) && ((__XSI_VISIBLE - 0L) > 0) \
3034 && defined(__BSD_VISIBLE) && ((__BSD_VISIBLE - 0L) > 0) \
3035 && defined(__ISO_C_VISIBLE) && ((__ISO_C_VISIBLE - 0L) > 0)
3036 #error conflicting symbols found
3038 ],[cf_cv_posix_visible=no],[cf_cv_posix_visible=yes])
3041 dnl ---------------------------------------------------------------------------
3042 dnl CF_PROG_AR version: 1 updated: 2009/01/01 20:15:22
3044 dnl Check for archiver "ar".
3045 AC_DEFUN([CF_PROG_AR],[
3046 AC_CHECK_TOOL(AR, ar, ar)
3048 dnl ---------------------------------------------------------------------------
3049 dnl CF_PROG_AWK version: 1 updated: 2006/09/16 11:40:59
3051 dnl Check for awk, ensure that the check found something.
3052 AC_DEFUN([CF_PROG_AWK],
3055 test -z "$AWK" && AC_MSG_ERROR(No awk program found)
3057 dnl ---------------------------------------------------------------------------
3058 dnl CF_PROG_CC version: 5 updated: 2019/12/31 08:53:54
3060 dnl standard check for CC, plus followup sanity checks
3061 dnl $1 = optional parameter to pass to AC_PROG_CC to specify compiler name
3062 AC_DEFUN([CF_PROG_CC],[
3063 CF_ACVERSION_CHECK(2.53,
3064 [AC_MSG_WARN(this will incorrectly handle gnatgcc choice)
3065 AC_REQUIRE([AC_PROG_CC])],
3067 ifelse($1,,[AC_PROG_CC],[AC_PROG_CC($1)])
3069 CF_ACVERSION_CHECK(2.52,
3074 dnl ---------------------------------------------------------------------------
3075 dnl CF_PROG_CC_C_O version: 5 updated: 2017/01/21 11:06:25
3077 dnl Analogous to AC_PROG_CC_C_O, but more useful: tests only $CC, ensures that
3078 dnl the output file can be renamed, and allows for a shell variable that can
3079 dnl be used later. The parameter is either CC or CXX. The result is the
3081 dnl $cf_cv_prog_CC_c_o
3082 dnl $cf_cv_prog_CXX_c_o
3085 dnl $2 = compiler options, if any
3086 AC_DEFUN([CF_PROG_CC_C_O],
3087 [AC_REQUIRE([AC_PROG_CC])dnl
3088 AC_MSG_CHECKING([whether [$]$1 understands -c and -o together])
3089 AC_CACHE_VAL(cf_cv_prog_$1_c_o,
3091 cat > conftest.$ac_ext <<CF_EOF
3094 ${cf_cv_main_return:-return}(0);
3097 # We do the test twice because some compilers refuse to overwrite an
3098 # existing .o file with -o, though they will create one.
3099 ac_try='[$]$1 $2 -c conftest.$ac_ext -o conftest2.$ac_objext >&AC_FD_CC'
3100 if AC_TRY_EVAL(ac_try) &&
3101 test -f conftest2.$ac_objext && AC_TRY_EVAL(ac_try);
3103 eval cf_cv_prog_$1_c_o=yes
3105 eval cf_cv_prog_$1_c_o=no
3109 if test $cf_cv_prog_$1_c_o = yes; then
3110 AC_MSG_RESULT([yes])
3115 dnl ---------------------------------------------------------------------------
3116 dnl CF_PROG_EGREP version: 2 updated: 2015/04/18 08:56:57
3118 dnl AC_PROG_EGREP was introduced in autoconf 2.53.
3119 dnl This macro adds a check to ensure the script found something.
3120 AC_DEFUN([CF_PROG_EGREP],
3121 [AC_CACHE_CHECK([for egrep], [ac_cv_prog_egrep],
3122 [if echo a | (grep -E '(a|b)') >/dev/null 2>&1
3123 then ac_cv_prog_egrep='grep -E'
3124 else ac_cv_prog_egrep='egrep'
3126 EGREP=$ac_cv_prog_egrep
3128 test -z "$EGREP" && AC_MSG_ERROR(No egrep program found)
3130 dnl ---------------------------------------------------------------------------
3131 dnl CF_PROG_EXT version: 14 updated: 2018/06/20 20:23:13
3133 dnl Compute $PROG_EXT, used for non-Unix ports, such as OS/2 EMX.
3134 AC_DEFUN([CF_PROG_EXT],
3136 AC_REQUIRE([CF_CHECK_CACHE])
3137 case $cf_cv_system_name in
3139 CFLAGS="$CFLAGS -Zmt"
3140 CF_APPEND_TEXT(CPPFLAGS,-D__ST_MT_ERRNO__)
3141 CXXFLAGS="$CXXFLAGS -Zmt"
3142 # autoconf's macro sets -Zexe and suffix both, which conflict:w
3143 LDFLAGS="$LDFLAGS -Zmt -Zcrtdll"
3153 test -n "$PROG_EXT" && AC_DEFINE_UNQUOTED(PROG_EXT,"$PROG_EXT",[Define to the program extension (normally blank)])
3155 dnl ---------------------------------------------------------------------------
3156 dnl CF_PROG_GNAT version: 10 updated: 2019/12/31 08:53:54
3158 dnl Check for gnat/gnatmake/etc, ensure that the toolset is complete.
3159 AC_DEFUN([CF_PROG_GNAT],[
3160 for cf_prog_gnat in gnat gnatmake gprconfig gprbuild
3162 CF_UPPER(cf_upper_prog_gnat,${cf_prog_gnat})
3164 unset ac_cv_path_cf_TEMP_gnat
3166 AC_PATH_PROG(cf_TEMP_gnat,$cf_prog_gnat,no)
3167 eval cf_cv_PATH_$cf_upper_prog_gnat=[$]ac_cv_path_cf_TEMP_gnat
3169 if test "x$cf_TEMP_gnat" != xno; then
3170 unset cf_cv_gnat_version
3172 CF_GNAT_VERSION(cf_TEMP_gnat,$cf_prog_gnat)
3174 eval cf_cv_VERSION_$cf_upper_prog_gnat=[$]cf_TEMP_gnat
3177 unset cf_cv_gnat_version
3178 unset ac_cv_path_cf_TEMP_gnat
3181 if test "x$cf_cv_VERSION_GNATMAKE" = "xno"; then
3183 cf_cv_prog_gnat_correct=no
3185 cf_ada_make=gnatmake
3186 if test "x$cf_cv_VERSION_GPRCONFIG" = "xno"; then
3187 # gprconfig is newer than gnatmake; we can continue...
3190 rm -rf conftest* *~conftest*
3191 if mkdir conftest.src
3195 for cf_gprconfig in Ada C
3197 AC_MSG_CHECKING(for gprconfig name for $cf_gprconfig)
3198 if test $cf_gprconfig = C
3200 for cf_gprconfig_param in \
3201 $cf_gprconfig,,,,GNATGCC \
3202 $cf_gprconfig,,,,GCC \
3205 cf_gprconfig_value=`echo s| gprconfig --config=$cf_gprconfig_param 2>&AC_FD_CC | ${AWK:-awk} '/^\*/{print [$]3;}' | head -n 1`
3206 test -n "$cf_gprconfig_value" && break
3209 cf_gprconfig_param=$cf_gprconfig
3210 cf_gprconfig_value=`echo s| gprconfig --config=$cf_gprconfig_param 2>&AC_FD_CC | ${AWK:-awk} '/^\*/{print [$]3;}' | head -n 1`
3212 if test -n "$cf_gprconfig_value"
3214 eval cf_ada_config_[$]cf_gprconfig=[$]cf_gprconfig_value
3215 AC_MSG_RESULT($cf_gprconfig_value)
3217 AC_MSG_RESULT(missing)
3223 rm -rf conftest* *~conftest*
3226 if test "x$cf_ada_config" != "x#"
3229 CF_CHECK_GNAT_VERSION
3230 AC_CHECK_PROG(M4_exists, m4, yes, no)
3231 if test "$ac_cv_prog_M4_exists" = no; then
3232 cf_cv_prog_gnat_correct=no
3233 AC_MSG_WARN(Ada95 binding required program m4 not found. Ada95 binding disabled)
3235 if test "$cf_cv_prog_gnat_correct" = yes; then
3236 AC_MSG_CHECKING(if GNAT works)
3237 CF_GNAT_TRY_RUN([procedure conftest;],
3240 procedure conftest is
3242 Text_IO.Put ("Hello World");
3244 GNAT.OS_Lib.OS_Exit (0);
3246 [cf_cv_prog_gnat_correct=yes],
3247 [cf_cv_prog_gnat_correct=no])
3248 AC_MSG_RESULT($cf_cv_prog_gnat_correct)
3251 cf_cv_prog_gnat_correct=no
3255 AC_SUBST(cf_ada_make)
3256 AC_SUBST(cf_ada_config)
3257 AC_SUBST(cf_ada_config_Ada)
3258 AC_SUBST(cf_ada_config_C)
3260 dnl ---------------------------------------------------------------------------
3261 dnl CF_PROG_INSTALL version: 7 updated: 2015/04/18 08:56:57
3263 dnl Force $INSTALL to be an absolute-path. Otherwise, edit_man.sh and the
3264 dnl misc/tabset install won't work properly. Usually this happens only when
3265 dnl using the fallback mkinstalldirs script
3266 AC_DEFUN([CF_PROG_INSTALL],
3272 CF_DIRNAME(cf_dir,$INSTALL)
3273 test -z "$cf_dir" && cf_dir=.
3274 INSTALL=`cd $cf_dir && pwd`/`echo $INSTALL | sed -e 's%^.*/%%'`
3278 dnl ---------------------------------------------------------------------------
3279 dnl CF_PROG_LN_S version: 2 updated: 2010/08/14 18:25:37
3281 dnl Combine checks for "ln -s" and "ln -sf", updating $LN_S to include "-f"
3282 dnl option if it is supported.
3283 AC_DEFUN([CF_PROG_LN_S],[
3285 AC_MSG_CHECKING(if $LN_S -f options work)
3287 rm -f conf$$.src conf$$dst
3289 echo first >conf$$.src
3290 if $LN_S -f conf$$.src conf$$.dst 2>/dev/null; then
3295 rm -f conf$$.dst conf$$src
3296 AC_MSG_RESULT($cf_prog_ln_sf)
3298 test "$cf_prog_ln_sf" = yes && LN_S="$LN_S -f"
3300 dnl ---------------------------------------------------------------------------
3301 dnl CF_REMOVE_DEFINE version: 3 updated: 2010/01/09 11:05:50
3302 dnl ----------------
3303 dnl Remove all -U and -D options that refer to the given symbol from a list
3304 dnl of C compiler options. This works around the problem that not all
3305 dnl compilers process -U and -D options from left-to-right, so a -U option
3306 dnl cannot be used to cancel the effect of a preceding -D option.
3308 dnl $1 = target (which could be the same as the source variable)
3309 dnl $2 = source (including '$')
3310 dnl $3 = symbol to remove
3311 define([CF_REMOVE_DEFINE],
3314 sed -e 's/-[[UD]]'"$3"'\(=[[^ ]]*\)\?[[ ]]/ /g' \
3315 -e 's/-[[UD]]'"$3"'\(=[[^ ]]*\)\?[$]//g'`
3317 dnl ---------------------------------------------------------------------------
3318 dnl CF_REMOVE_LIB version: 1 updated: 2007/02/17 14:11:52
3320 dnl Remove the given library from the symbol
3322 dnl $1 = target (which could be the same as the source variable)
3323 dnl $2 = source (including '$')
3324 dnl $3 = library to remove
3325 define([CF_REMOVE_LIB],
3327 # remove $3 library from $2
3328 $1=`echo "$2" | sed -e 's/-l$3[[ ]]//g' -e 's/-l$3[$]//'`
3330 dnl ---------------------------------------------------------------------------
3331 dnl CF_SHARED_OPTS version: 93 updated: 2018/08/18 16:36:35
3334 dnl Attempt to determine the appropriate CC/LD options for creating a shared
3338 dnl a) ${LOCAL_LDFLAGS} is used to link executables that will run within
3339 dnl the build-tree, i.e., by making use of the libraries that are compiled in
3340 dnl $rel_builddir/lib We avoid compiling-in a $rel_builddir/lib path for the
3341 dnl shared library since that can lead to unexpected results at runtime.
3342 dnl b) ${LOCAL_LDFLAGS2} has the same intention but assumes that the shared
3343 dnl libraries are compiled in ../../lib
3345 dnl The variable 'cf_cv_do_symlinks' is used to control whether we configure
3346 dnl to install symbolic links to the rel/abi versions of shared libraries.
3348 dnl The variable 'cf_cv_shlib_version' controls whether we use the rel or abi
3349 dnl version when making symbolic links.
3351 dnl The variable 'cf_cv_shlib_version_infix' controls whether shared library
3352 dnl version numbers are infix (ex: libncurses.<ver>.dylib) or postfix
3353 dnl (ex: libncurses.so.<ver>).
3355 dnl Some loaders leave 'so_locations' lying around. It's nice to clean up.
3356 AC_DEFUN([CF_SHARED_OPTS],
3358 AC_REQUIRE([CF_LD_RPATH_OPT])
3364 INSTALL_LIB="-m 644"
3365 : ${rel_builddir:=.}
3373 cf_cv_do_symlinks=no
3375 test "$cf_cv_enable_rpath" = yes && cf_ld_rpath_opt="$LD_RPATH_OPT"
3377 AC_MSG_CHECKING(if release/abi version should be used for shared libs)
3378 AC_ARG_WITH(shlib-version,
3379 [ --with-shlib-version=X Specify rel or abi version for shared libs],
3380 [test -z "$withval" && withval=auto
3383 cf_cv_shlib_version=auto
3386 cf_cv_shlib_version=$withval
3389 AC_MSG_RESULT($withval)
3390 AC_MSG_ERROR([option value must be one of: rel, abi, or auto])
3393 ],[cf_cv_shlib_version=auto])
3394 AC_MSG_RESULT($cf_cv_shlib_version)
3399 # Some less-capable ports of gcc support only -fpic
3403 if test "$GCC" = yes
3407 case $cf_cv_system_name in
3408 (*linux*) # e.g., PGI compiler
3414 if test "$cf_try_fPIC" = yes
3416 AC_MSG_CHECKING(which $CC option to use)
3417 cf_save_CFLAGS="$CFLAGS"
3418 for CC_SHARED_OPTS in -fPIC -fpic ''
3420 CFLAGS="$cf_save_CFLAGS $CC_SHARED_OPTS"
3421 AC_TRY_COMPILE([#include <stdio.h>],[int x = 1],[break],[])
3423 AC_MSG_RESULT($CC_SHARED_OPTS)
3424 CFLAGS="$cf_save_CFLAGS"
3427 cf_cv_shlib_version_infix=no
3429 case $cf_cv_system_name in
3430 (aix4.[3-9]*|aix[[5-7]]*)
3431 if test "$GCC" = yes; then
3432 CC_SHARED_OPTS='-Wl,-brtl'
3433 MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -Wl,-brtl -Wl,-blibpath:${RPATH_LIST}:/usr/lib -o [$]@'
3435 CC_SHARED_OPTS='-brtl'
3436 # as well as '-qpic=large -G' or perhaps "-bM:SRE -bnoentry -bexpall"
3437 MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -G -Wl,-brtl -Wl,-blibpath:${RPATH_LIST}:/usr/lib -o [$]@'
3441 MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -o $[@] -Xlinker -soname=`basename $[@]` -nostart -e 0'
3445 MK_SHARED_LIB=$SHELL' '$rel_builddir'/mk_shared_lib.sh [$]@ [$]{CC} [$]{CFLAGS}'
3446 RM_SHARED_OPTS="$RM_SHARED_OPTS $rel_builddir/mk_shared_lib.sh *.dll.a"
3447 cf_cv_shlib_version=cygdll
3448 cf_cv_shlib_version_infix=cygdll
3451 cat >mk_shared_lib.sh <<-CF_EOF
3454 IMPORT_LIB=\`echo "\[$]1" | sed -e 's/cyg/lib/' -e 's/[[0-9]]*\.dll[$]/.dll.a/'\`
3457 Linking shared library
3458 ** SHARED_LIB \[$]SHARED_LIB
3459 ** IMPORT_LIB \[$]IMPORT_LIB
3461 exec \[$]* ${LDFLAGS} -shared -Wl,--out-implib=\[$]{IMPORT_LIB} -Wl,--export-all-symbols -o \[$]{SHARED_LIB}
3463 chmod +x mk_shared_lib.sh
3467 MK_SHARED_LIB=$SHELL' '$rel_builddir'/mk_shared_lib.sh [$]@ [$]{CC} [$]{CFLAGS}'
3468 RM_SHARED_OPTS="$RM_SHARED_OPTS $rel_builddir/mk_shared_lib.sh *.dll.a"
3469 cf_cv_shlib_version=msysdll
3470 cf_cv_shlib_version_infix=msysdll
3473 cat >mk_shared_lib.sh <<-CF_EOF
3476 IMPORT_LIB=\`echo "\[$]1" | sed -e 's/msys-/lib/' -e 's/[[0-9]]*\.dll[$]/.dll.a/'\`
3479 Linking shared library
3480 ** SHARED_LIB \[$]SHARED_LIB
3481 ** IMPORT_LIB \[$]IMPORT_LIB
3483 exec \[$]* ${LDFLAGS} -shared -Wl,--out-implib=\[$]{IMPORT_LIB} -Wl,--export-all-symbols -o \[$]{SHARED_LIB}
3485 chmod +x mk_shared_lib.sh
3488 cf_try_cflags="no-cpp-precomp"
3489 CC_SHARED_OPTS="-dynamic"
3490 MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -dynamiclib -install_name ${libdir}/`basename $[@]` -compatibility_version ${ABI_VERSION} -current_version ${ABI_VERSION} -o $[@]'
3491 test "$cf_cv_shlib_version" = auto && cf_cv_shlib_version=abi
3492 cf_cv_shlib_version_infix=yes
3493 AC_CACHE_CHECK([if ld -search_paths_first works], cf_cv_ldflags_search_paths_first, [
3494 cf_save_LDFLAGS=$LDFLAGS
3495 LDFLAGS="$LDFLAGS -Wl,-search_paths_first"
3496 AC_TRY_LINK(, [int i;], cf_cv_ldflags_search_paths_first=yes, cf_cv_ldflags_search_paths_first=no)
3497 LDFLAGS=$cf_save_LDFLAGS])
3498 if test $cf_cv_ldflags_search_paths_first = yes; then
3499 LDFLAGS="$LDFLAGS -Wl,-search_paths_first"
3503 # HP-UX 8.07 ld lacks "+b" option used for libdir search-list
3504 if test "$GCC" != yes; then
3507 MK_SHARED_LIB='${LD} ${LDFLAGS} -b -o $[@]'
3508 INSTALL_LIB="-m 555"
3511 # (tested with gcc 2.7.2 -- I don't have c89)
3512 if test "$GCC" = yes; then
3513 LD_SHARED_OPTS='-Xlinker +b -Xlinker ${libdir}'
3516 LD_SHARED_OPTS='-Wl,+b,${libdir}'
3518 MK_SHARED_LIB='${LD} ${LDFLAGS} +b ${libdir} -b -o $[@]'
3519 # HP-UX shared libraries must be executable, and should be
3520 # readonly to exploit a quirk in the memory manager.
3521 INSTALL_LIB="-m 555"
3524 test "$cf_cv_shlib_version" = auto && cf_cv_shlib_version=rel
3525 if test "$cf_cv_shlib_version" = rel; then
3526 cf_shared_soname='`basename $[@] .${REL_VERSION}`.${ABI_VERSION}'
3528 cf_shared_soname='`basename $[@]`'
3531 MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -Wl,-rpath,${RPATH_LIST} -Wl,-h,'$cf_shared_soname' -o $[@]'
3534 if test "$cf_cv_enable_rpath" = yes ; then
3535 EXTRA_LDFLAGS="${cf_ld_rpath_opt}\${RPATH_LIST} $EXTRA_LDFLAGS"
3537 # tested with IRIX 5.2 and 'cc'.
3538 if test "$GCC" != yes; then
3539 CC_SHARED_OPTS='-KPIC'
3540 MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -rdata_shared -soname `basename $[@]` -o $[@]'
3542 MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -Wl,-soname,`basename $[@]` -o $[@]'
3544 cf_cv_rm_so_locs=yes
3546 (linux*|gnu*|k*bsd*-gnu)
3547 if test "$DFT_LWR_MODEL" = "shared" && test -n "$LD_RPATH_OPT" ; then
3548 LOCAL_LDFLAGS="${LD_RPATH_OPT}\$(LOCAL_LIBDIR)"
3549 LOCAL_LDFLAGS2="$LOCAL_LDFLAGS"
3551 if test "$cf_cv_enable_rpath" = yes ; then
3552 EXTRA_LDFLAGS="${cf_ld_rpath_opt}\${RPATH_LIST} $EXTRA_LDFLAGS"
3555 MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -Wl,-soname,'$cf_cv_shared_soname',-stats,-lc -o $[@]'
3558 cf_cv_shlib_version=mingw
3559 cf_cv_shlib_version_infix=mingw
3562 if test "$DFT_LWR_MODEL" = "shared" ; then
3563 LOCAL_LDFLAGS="-Wl,--enable-auto-import"
3564 LOCAL_LDFLAGS2="$LOCAL_LDFLAGS"
3565 EXTRA_LDFLAGS="-Wl,--enable-auto-import $EXTRA_LDFLAGS"
3568 MK_SHARED_LIB=$SHELL' '$rel_builddir'/mk_shared_lib.sh [$]@ [$]{CC} [$]{CFLAGS}'
3569 RM_SHARED_OPTS="$RM_SHARED_OPTS $rel_builddir/mk_shared_lib.sh *.dll.a"
3570 cat >mk_shared_lib.sh <<-CF_EOF
3573 IMPORT_LIB=\`echo "\[$]1" | sed -e 's/[[0-9]]*\.dll[$]/.dll.a/'\`
3576 Linking shared library
3577 ** SHARED_LIB \[$]SHARED_LIB
3578 ** IMPORT_LIB \[$]IMPORT_LIB
3580 exec \[$]* ${LDFLAGS} -shared -Wl,--enable-auto-import,--out-implib=\[$]{IMPORT_LIB} -Wl,--export-all-symbols -o \[$]{SHARED_LIB}
3582 chmod +x mk_shared_lib.sh
3584 (openbsd[[2-9]].*|mirbsd*)
3585 if test "$DFT_LWR_MODEL" = "shared" && test -n "$LD_RPATH_OPT" ; then
3586 LOCAL_LDFLAGS="${LD_RPATH_OPT}\$(LOCAL_LIBDIR)"
3587 LOCAL_LDFLAGS2="$LOCAL_LDFLAGS"
3589 if test "$cf_cv_enable_rpath" = yes ; then
3590 EXTRA_LDFLAGS="${cf_ld_rpath_opt}\${RPATH_LIST} $EXTRA_LDFLAGS"
3592 CC_SHARED_OPTS="$CC_SHARED_OPTS -DPIC"
3594 MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -Wl,-Bshareable,-soname,'$cf_cv_shared_soname',-stats,-lc -o $[@]'
3596 (nto-qnx*|openbsd*|freebsd[[12]].*)
3597 CC_SHARED_OPTS="$CC_SHARED_OPTS -DPIC"
3598 MK_SHARED_LIB='${LD} ${LDFLAGS} -Bshareable -o $[@]'
3599 test "$cf_cv_shlib_version" = auto && cf_cv_shlib_version=rel
3601 (dragonfly*|freebsd*)
3602 CC_SHARED_OPTS="$CC_SHARED_OPTS -DPIC"
3603 if test "$DFT_LWR_MODEL" = "shared" && test "$cf_cv_enable_rpath" = yes ; then
3604 LOCAL_LDFLAGS="${cf_ld_rpath_opt}\$(LOCAL_LIBDIR)"
3605 LOCAL_LDFLAGS2="${cf_ld_rpath_opt}\${RPATH_LIST} $LOCAL_LDFLAGS"
3606 EXTRA_LDFLAGS="${cf_ld_rpath_opt}\${RPATH_LIST} $EXTRA_LDFLAGS"
3609 MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -Wl,-soname,'$cf_cv_shared_soname',-stats,-lc -o $[@]'
3612 CC_SHARED_OPTS="$CC_SHARED_OPTS -DPIC"
3613 if test "$DFT_LWR_MODEL" = "shared" && test "$cf_cv_enable_rpath" = yes ; then
3614 LOCAL_LDFLAGS="${cf_ld_rpath_opt}\$(LOCAL_LIBDIR)"
3615 LOCAL_LDFLAGS2="$LOCAL_LDFLAGS"
3616 EXTRA_LDFLAGS="${cf_ld_rpath_opt}\${RPATH_LIST} $EXTRA_LDFLAGS"
3617 if test "$cf_cv_shlib_version" = auto; then
3618 if test -f /usr/libexec/ld.elf_so; then
3619 cf_cv_shlib_version=abi
3621 cf_cv_shlib_version=rel
3625 MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -Wl,-soname,'$cf_cv_shared_soname' -o $[@]'
3627 MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -Wl,-shared -Wl,-Bshareable -o $[@]'
3631 # tested with OSF/1 V3.2 and 'cc'
3632 # tested with OSF/1 V3.2 and gcc 2.6.3 (but the c++ demo didn't
3633 # link with shared libs).
3634 MK_SHARED_LIB='${LD} ${LDFLAGS} -set_version ${REL_VERSION}:${ABI_VERSION} -expect_unresolved "*" -shared -soname `basename $[@]`'
3637 MK_SHARED_LIB="${MK_SHARED_LIB} -msym"
3640 MK_SHARED_LIB="${MK_SHARED_LIB}"' -o $[@]'
3641 if test "$DFT_LWR_MODEL" = "shared" && test -n "$LD_RPATH_OPT" ; then
3642 LOCAL_LDFLAGS="${LD_RPATH_OPT}\$(LOCAL_LIBDIR)"
3643 LOCAL_LDFLAGS2="$LOCAL_LDFLAGS"
3645 cf_cv_rm_so_locs=yes
3647 (sco3.2v5*) # also uw2* and UW7: hops 13-Apr-98
3648 # tested with osr5.0.5
3649 if test "$GCC" != yes; then
3650 CC_SHARED_OPTS='-belf -KPIC'
3652 MK_SHARED_LIB='${LD} ${LDFLAGS} -dy -G -h `basename $[@] .${REL_VERSION}`.${ABI_VERSION} -o [$]@'
3653 if test "$cf_cv_enable_rpath" = yes ; then
3654 # only way is to set LD_RUN_PATH but no switch for it
3657 test "$cf_cv_shlib_version" = auto && cf_cv_shlib_version=rel
3658 LINK_PROGS='LD_RUN_PATH=${libdir}'
3659 LINK_TESTS='Pwd=`pwd`;LD_RUN_PATH=`dirname $${Pwd}`/lib'
3662 # tested with SunOS 4.1.1 and gcc 2.7.0
3663 if test "$GCC" != yes; then
3664 CC_SHARED_OPTS='-KPIC'
3666 MK_SHARED_LIB='${LD} ${LDFLAGS} -assert pure-text -o $[@]'
3667 test "$cf_cv_shlib_version" = auto && cf_cv_shlib_version=rel
3670 # tested with SunOS 5.5.1 (solaris 2.5.1) and gcc 2.7.2
3671 # tested with SunOS 5.10 (solaris 10) and gcc 3.4.3
3672 if test "$DFT_LWR_MODEL" = "shared" ; then
3673 LOCAL_LDFLAGS="-R \$(LOCAL_LIBDIR):\${libdir}"
3674 LOCAL_LDFLAGS2="$LOCAL_LDFLAGS"
3676 if test "$cf_cv_enable_rpath" = yes ; then
3677 EXTRA_LDFLAGS="-R \${libdir} $EXTRA_LDFLAGS"
3680 if test "$GCC" != yes; then
3681 cf_save_CFLAGS="$CFLAGS"
3682 for cf_shared_opts in -xcode=pic32 -xcode=pic13 -KPIC -Kpic -O
3684 CFLAGS="$cf_shared_opts $cf_save_CFLAGS"
3685 AC_TRY_COMPILE([#include <stdio.h>],[printf("Hello\n");],[break])
3687 CFLAGS="$cf_save_CFLAGS"
3688 CC_SHARED_OPTS=$cf_shared_opts
3689 MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -dy -G -h '$cf_cv_shared_soname' -o $[@]'
3691 MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -dy -G -h '$cf_cv_shared_soname' -o $[@]'
3694 (sysv5uw7*|unix_sv*)
3695 # tested with UnixWare 7.1.0 (gcc 2.95.2 and cc)
3696 if test "$GCC" != yes; then
3697 CC_SHARED_OPTS='-KPIC'
3699 MK_SHARED_LIB='${LD} ${LDFLAGS} -d y -G -o [$]@'
3702 CC_SHARED_OPTS='unknown'
3703 MK_SHARED_LIB='echo unknown'
3707 # This works if the last tokens in $MK_SHARED_LIB are the -o target.
3708 case "$cf_cv_shlib_version" in
3710 case "$MK_SHARED_LIB" in
3712 test "$cf_cv_do_symlinks" = no && cf_cv_do_symlinks=yes
3715 AC_MSG_WARN(ignored --with-shlib-version)
3721 if test -n "$cf_try_cflags"
3723 cat > conftest.$ac_ext <<EOF
3724 #line __oline__ "${as_me:-configure}"
3726 int main(int argc, char *argv[[]])
3729 return (argv[[argc-1]] == 0) ;
3732 cf_save_CFLAGS="$CFLAGS"
3733 for cf_opt in $cf_try_cflags
3735 CFLAGS="$cf_save_CFLAGS -$cf_opt"
3736 AC_MSG_CHECKING(if CFLAGS option -$cf_opt works)
3737 if AC_TRY_EVAL(ac_compile); then
3739 cf_save_CFLAGS="$CFLAGS"
3744 CFLAGS="$cf_save_CFLAGS"
3748 # RPATH_LIST is a colon-separated list of directories
3749 test -n "$cf_ld_rpath_opt" && MK_SHARED_LIB="$MK_SHARED_LIB $cf_ld_rpath_opt\${RPATH_LIST}"
3750 test -z "$RPATH_LIST" && RPATH_LIST="\${libdir}"
3752 test $cf_cv_rm_so_locs = yes && RM_SHARED_OPTS="$RM_SHARED_OPTS so_locations"
3754 CF_VERBOSE(CC_SHARED_OPTS: $CC_SHARED_OPTS)
3755 CF_VERBOSE(MK_SHARED_LIB: $MK_SHARED_LIB)
3757 AC_SUBST(CC_SHARED_OPTS)
3758 AC_SUBST(LD_RPATH_OPT)
3759 AC_SUBST(LD_SHARED_OPTS)
3760 AC_SUBST(MK_SHARED_LIB)
3761 AC_SUBST(RM_SHARED_OPTS)
3763 AC_SUBST(LINK_PROGS)
3764 AC_SUBST(LINK_TESTS)
3766 AC_SUBST(EXTRA_LDFLAGS)
3767 AC_SUBST(LOCAL_LDFLAGS)
3768 AC_SUBST(LOCAL_LDFLAGS2)
3770 AC_SUBST(INSTALL_LIB)
3771 AC_SUBST(RPATH_LIST)
3773 dnl ---------------------------------------------------------------------------
3774 dnl CF_SHARED_SONAME version: 3 updated: 2008/09/08 18:34:43
3775 dnl ----------------
3776 dnl utility macro for CF_SHARED_OPTS, constructs "$cf_cv_shared_soname" for
3777 dnl substitution into MK_SHARED_LIB string for the "-soname" (or similar)
3780 dnl $1 is the default that should be used for "$cf_cv_shlib_version".
3781 dnl If missing, use "rel".
3782 define([CF_SHARED_SONAME],
3784 test "$cf_cv_shlib_version" = auto && cf_cv_shlib_version=ifelse($1,,rel,$1)
3785 if test "$cf_cv_shlib_version" = rel; then
3786 cf_cv_shared_soname='`basename $[@] .${REL_VERSION}`.${ABI_VERSION}'
3788 cf_cv_shared_soname='`basename $[@]`'
3791 dnl ---------------------------------------------------------------------------
3792 dnl CF_STRIP_G_OPT version: 3 updated: 2002/12/21 19:25:52
3794 dnl Remove "-g" option from the compiler options
3795 AC_DEFUN([CF_STRIP_G_OPT],
3796 [$1=`echo ${$1} | sed -e 's%-g %%' -e 's%-g$%%'`])dnl
3797 dnl ---------------------------------------------------------------------------
3798 dnl CF_SUBDIR_PATH version: 7 updated: 2014/12/04 04:33:06
3800 dnl Construct a search-list for a nonstandard header/lib-file
3801 dnl $1 = the variable to return as result
3802 dnl $2 = the package name
3803 dnl $3 = the subdirectory, e.g., bin, include or lib
3804 AC_DEFUN([CF_SUBDIR_PATH],
3808 CF_ADD_SUBDIR_PATH($1,$2,$3,$prefix,NONE)
3810 for cf_subdir_prefix in \
3818 CF_ADD_SUBDIR_PATH($1,$2,$3,$cf_subdir_prefix,$prefix)
3821 dnl ---------------------------------------------------------------------------
3822 dnl CF_TERM_HEADER version: 4 updated: 2015/04/15 19:08:48
3824 dnl Look for term.h, which is part of X/Open curses. It defines the interface
3825 dnl to terminfo database. Usually it is in the same include-path as curses.h,
3826 dnl but some packagers change this, breaking various applications.
3827 AC_DEFUN([CF_TERM_HEADER],[
3828 AC_CACHE_CHECK(for terminfo header, cf_cv_term_header,[
3829 case ${cf_cv_ncurses_header} in
3830 (*/ncurses.h|*/ncursesw.h)
3831 cf_term_header=`echo "$cf_cv_ncurses_header" | sed -e 's%ncurses[[^.]]*\.h$%term.h%'`
3834 cf_term_header=term.h
3838 for cf_test in $cf_term_header "ncurses/term.h" "ncursesw/term.h"
3840 AC_TRY_COMPILE([#include <stdio.h>
3841 #include <${cf_cv_ncurses_header:-curses.h}>
3843 ],[int x = auto_left_margin],[
3844 cf_cv_term_header="$cf_test"],[
3845 cf_cv_term_header=unknown
3847 test "$cf_cv_term_header" != unknown && break
3851 # Set definitions to allow ifdef'ing to accommodate subdirectories
3853 case $cf_cv_term_header in
3855 AC_DEFINE(HAVE_TERM_H,1,[Define to 1 if we have term.h])
3859 case $cf_cv_term_header in
3861 AC_DEFINE(HAVE_NCURSES_TERM_H,1,[Define to 1 if we have ncurses/term.h])
3864 AC_DEFINE(HAVE_NCURSESW_TERM_H,1,[Define to 1 if we have ncursesw/term.h])
3868 dnl ---------------------------------------------------------------------------
3869 dnl CF_TOP_BUILDDIR version: 2 updated: 2013/07/27 17:38:32
3871 dnl Define a top_builddir symbol, for applications that need an absolute path.
3872 AC_DEFUN([CF_TOP_BUILDDIR],
3874 top_builddir=ifelse($1,,`pwd`,$1)
3875 AC_SUBST(top_builddir)
3877 dnl ---------------------------------------------------------------------------
3878 dnl CF_TRY_XOPEN_SOURCE version: 2 updated: 2018/06/20 20:23:13
3879 dnl -------------------
3880 dnl If _XOPEN_SOURCE is not defined in the compile environment, check if we
3881 dnl can define it successfully.
3882 AC_DEFUN([CF_TRY_XOPEN_SOURCE],[
3883 AC_CACHE_CHECK(if we should define _XOPEN_SOURCE,cf_cv_xopen_source,[
3887 #include <sys/types.h>
3889 #ifndef _XOPEN_SOURCE
3892 [cf_cv_xopen_source=no],
3893 [cf_save="$CPPFLAGS"
3894 CF_APPEND_TEXT(CPPFLAGS,-D_XOPEN_SOURCE=$cf_XOPEN_SOURCE)
3898 #include <sys/types.h>
3900 #ifdef _XOPEN_SOURCE
3903 [cf_cv_xopen_source=no],
3904 [cf_cv_xopen_source=$cf_XOPEN_SOURCE])
3909 if test "$cf_cv_xopen_source" != no ; then
3910 CF_REMOVE_DEFINE(CFLAGS,$CFLAGS,_XOPEN_SOURCE)
3911 CF_REMOVE_DEFINE(CPPFLAGS,$CPPFLAGS,_XOPEN_SOURCE)
3912 cf_temp_xopen_source="-D_XOPEN_SOURCE=$cf_cv_xopen_source"
3913 CF_ADD_CFLAGS($cf_temp_xopen_source)
3916 dnl ---------------------------------------------------------------------------
3917 dnl CF_UPPER version: 5 updated: 2001/01/29 23:40:59
3919 dnl Make an uppercase version of a variable
3920 dnl $1=uppercase($2)
3921 AC_DEFUN([CF_UPPER],
3923 $1=`echo "$2" | sed y%abcdefghijklmnopqrstuvwxyz./-%ABCDEFGHIJKLMNOPQRSTUVWXYZ___%`
3925 dnl ---------------------------------------------------------------------------
3926 dnl CF_UTF8_LIB version: 8 updated: 2012/10/06 08:57:51
3928 dnl Check for multibyte support, and if not found, utf8 compatibility library
3929 AC_DEFUN([CF_UTF8_LIB],
3931 AC_CACHE_CHECK(for multibyte character support,cf_cv_utf8_lib,[
3932 cf_save_LIBS="$LIBS"
3934 #include <stdlib.h>],[putwc(0,0);],
3935 [cf_cv_utf8_lib=yes],
3937 #include <libutf8.h>],[putwc(0,0);],utf8,
3938 [cf_cv_utf8_lib=add-on],
3939 [cf_cv_utf8_lib=no])
3942 # HAVE_LIBUTF8_H is used by ncurses if curses.h is shared between
3944 if test "$cf_cv_utf8_lib" = "add-on" ; then
3945 AC_DEFINE(HAVE_LIBUTF8_H,1,[Define to 1 if we should include libutf8.h])
3946 CF_ADD_INCDIR($cf_cv_header_path_utf8)
3947 CF_ADD_LIBDIR($cf_cv_library_path_utf8)
3948 CF_ADD_LIBS($cf_cv_library_file_utf8)
3951 dnl ---------------------------------------------------------------------------
3952 dnl CF_VERBOSE version: 3 updated: 2007/07/29 09:55:12
3954 dnl Use AC_VERBOSE w/o the warnings
3955 AC_DEFUN([CF_VERBOSE],
3956 [test -n "$verbose" && echo " $1" 1>&AC_FD_MSG
3959 dnl ---------------------------------------------------------------------------
3960 dnl CF_WEAK_SYMBOLS version: 1 updated: 2008/08/16 19:18:06
3962 dnl Check for compiler-support for weak symbols.
3963 dnl This works with "recent" gcc.
3964 AC_DEFUN([CF_WEAK_SYMBOLS],[
3965 AC_CACHE_CHECK(if $CC supports weak symbols,cf_cv_weak_symbols,[
3968 #include <stdio.h>],
3970 #if defined(__GNUC__)
3971 # if defined __USE_ISOC99
3972 # define _cat_pragma(exp) _Pragma(#exp)
3973 # define _weak_pragma(exp) _cat_pragma(weak name)
3975 # define _weak_pragma(exp)
3977 # define _declare(name) __extension__ extern __typeof__(name) name
3978 # define weak_symbol(name) _weak_pragma(name) _declare(name) __attribute__((weak))
3982 ],[cf_cv_weak_symbols=yes],[cf_cv_weak_symbols=no])
3985 dnl ---------------------------------------------------------------------------
3986 dnl CF_WITH_ADA_COMPILER version: 2 updated: 2010/06/26 17:35:58
3987 dnl --------------------
3988 dnl Command-line option to specify the Ada95 compiler.
3989 AC_DEFUN([CF_WITH_ADA_COMPILER],[
3990 AC_MSG_CHECKING(for ada-compiler)
3991 AC_ARG_WITH(ada-compiler,
3992 [ --with-ada-compiler=CMD specify Ada95 compiler command (default gnatmake)],
3993 [cf_ada_compiler=$withval],
3994 [cf_ada_compiler=gnatmake])
3995 AC_SUBST(cf_ada_compiler)
3996 AC_MSG_RESULT($cf_ada_compiler)
3998 dnl ---------------------------------------------------------------------------
3999 dnl CF_WITH_ADA_INCLUDE version: 2 updated: 2010/06/26 17:35:58
4000 dnl -------------------
4001 dnl Command-line option to specify where Ada includes will install.
4002 AC_DEFUN([CF_WITH_ADA_INCLUDE],[
4003 AC_MSG_CHECKING(for ada-include)
4004 CF_WITH_PATH(ada-include,
4005 [ --with-ada-include=DIR Ada includes are in DIR],
4007 PREFIX/share/ada/adainclude,
4008 [$]prefix/share/ada/adainclude)
4009 AC_SUBST(ADA_INCLUDE)
4010 AC_MSG_RESULT($ADA_INCLUDE)
4012 dnl ---------------------------------------------------------------------------
4013 dnl CF_WITH_ADA_LIBNAME version: 1 updated: 2019/09/07 18:59:41
4014 dnl -------------------
4015 dnl CF_WITH_ADA_LIBNAME
4016 dnl -------------------
4017 dnl Command-line option to specify how to name the resulting Ada library.
4018 dnl $1 = default value
4019 AC_DEFUN([CF_WITH_ADA_LIBNAME],[
4020 AC_MSG_CHECKING(for ada-libname)
4021 AC_ARG_WITH(ada-libname,
4022 [ --with-ada-libname=XXX override default Ada library-name],
4023 ADA_LIBNAME=[$]withval,
4025 case "x$ADA_LIBNAME" in
4030 AC_SUBST(ADA_LIBNAME)
4031 AC_MSG_RESULT($ADA_LIBNAME)
4033 dnl ---------------------------------------------------------------------------
4034 dnl CF_WITH_ADA_OBJECTS version: 2 updated: 2010/06/26 17:35:58
4035 dnl -------------------
4036 dnl Command-line option to specify where Ada objects will install.
4037 AC_DEFUN([CF_WITH_ADA_OBJECTS],[
4038 AC_MSG_CHECKING(for ada-objects)
4039 CF_WITH_PATH(ada-objects,
4040 [ --with-ada-objects=DIR Ada objects are in DIR],
4042 PREFIX/lib/ada/adalib,
4043 [$]prefix/lib/ada/adalib)
4044 AC_SUBST(ADA_OBJECTS)
4045 AC_MSG_RESULT($ADA_OBJECTS)
4047 dnl ---------------------------------------------------------------------------
4048 dnl CF_WITH_ADA_SHAREDLIB version: 5 updated: 2018/07/21 19:10:35
4049 dnl ---------------------
4050 dnl Command-line option to specify if an Ada95 shared-library should be built,
4051 dnl and optionally what its soname should be.
4052 AC_DEFUN([CF_WITH_ADA_SHAREDLIB],[
4053 AC_REQUIRE([CF_GNAT_PROJECTS])
4054 AC_MSG_CHECKING(if an Ada95 shared-library should be built)
4055 AC_ARG_WITH(ada-sharedlib,
4056 [ --with-ada-sharedlib=soname build shared-library (requires GNAT projects)],
4057 [with_ada_sharedlib=$withval],
4058 [with_ada_sharedlib=no])
4059 AC_MSG_RESULT($with_ada_sharedlib)
4061 if test "x$with_ada_sharedlib" != xno
4063 if test "x$cf_gnat_projects" != xyes
4065 AC_MSG_WARN(disabling shared-library since GNAT projects are not supported)
4066 with_ada_sharedlib=no
4070 ADA_SHAREDLIB='lib$(LIB_NAME).so.1'
4071 MAKE_ADA_SHAREDLIB="#"
4073 if test "x$with_ada_sharedlib" != xno
4076 if test "x$with_ada_sharedlib" != xyes
4078 ADA_SHAREDLIB="$with_ada_sharedlib"
4082 AC_SUBST(ADA_SHAREDLIB)
4083 AC_SUBST(MAKE_ADA_SHAREDLIB)
4085 dnl ---------------------------------------------------------------------------
4086 dnl CF_WITH_CURSES_DIR version: 3 updated: 2010/11/20 17:02:38
4087 dnl ------------------
4088 dnl Wrapper for AC_ARG_WITH to specify directory under which to look for curses
4090 AC_DEFUN([CF_WITH_CURSES_DIR],[
4092 AC_MSG_CHECKING(for specific curses-directory)
4093 AC_ARG_WITH(curses-dir,
4094 [ --with-curses-dir=DIR directory in which (n)curses is installed],
4095 [cf_cv_curses_dir=$withval],
4096 [cf_cv_curses_dir=no])
4097 AC_MSG_RESULT($cf_cv_curses_dir)
4099 if ( test -n "$cf_cv_curses_dir" && test "$cf_cv_curses_dir" != "no" )
4101 CF_PATH_SYNTAX(withval)
4102 if test -d "$cf_cv_curses_dir"
4104 CF_ADD_INCDIR($cf_cv_curses_dir/include)
4105 CF_ADD_LIBDIR($cf_cv_curses_dir/lib)
4109 dnl ---------------------------------------------------------------------------
4110 dnl CF_WITH_LIB_PREFIX version: 1 updated: 2012/01/21 19:28:10
4111 dnl ------------------
4112 dnl Allow the library-prefix to be overridden. OS/2 EMX originally had no
4113 dnl "lib" prefix, e.g., because it used the dll naming convention.
4115 dnl $1 = variable to set
4116 AC_DEFUN([CF_WITH_LIB_PREFIX],
4118 AC_MSG_CHECKING(if you want to have a library-prefix)
4119 AC_ARG_WITH(lib-prefix,
4120 [ --with-lib-prefix override library-prefix],
4121 [with_lib_prefix=$withval],
4122 [with_lib_prefix=auto])
4123 AC_MSG_RESULT($with_lib_prefix)
4125 if test $with_lib_prefix = auto
4128 elif test $with_lib_prefix = no
4132 LIB_PREFIX=$with_lib_prefix
4135 dnl ---------------------------------------------------------------------------
4136 dnl CF_WITH_PATH version: 11 updated: 2012/09/29 15:04:19
4138 dnl Wrapper for AC_ARG_WITH to ensure that user supplies a pathname, not just
4139 dnl defaulting to yes/no.
4141 dnl $1 = option name
4143 dnl $3 = environment variable to set
4144 dnl $4 = default value, shown in the help-message, must be a constant
4145 dnl $5 = default value, if it's an expression & cannot be in the help-message
4147 AC_DEFUN([CF_WITH_PATH],
4148 [AC_ARG_WITH($1,[$2 ](default: ifelse([$4],,empty,[$4])),,
4149 ifelse([$4],,[withval="${$3}"],[withval="${$3:-ifelse([$5],,[$4],[$5])}"]))dnl
4150 if ifelse([$5],,true,[test -n "$5"]) ; then
4151 CF_PATH_SYNTAX(withval)
4156 dnl ---------------------------------------------------------------------------
4157 dnl CF_WITH_PKG_CONFIG_LIBDIR version: 10 updated: 2015/08/22 17:10:56
4158 dnl -------------------------
4159 dnl Allow the choice of the pkg-config library directory to be overridden.
4160 AC_DEFUN([CF_WITH_PKG_CONFIG_LIBDIR],[
4164 AC_MSG_CHECKING(for pkg-config library directory)
4167 AC_MSG_CHECKING(for $PKG_CONFIG library directory)
4171 PKG_CONFIG_LIBDIR=no
4172 AC_ARG_WITH(pkg-config-libdir,
4173 [ --with-pkg-config-libdir=XXX use given directory for installing pc-files],
4174 [PKG_CONFIG_LIBDIR=$withval],
4175 [test "x$PKG_CONFIG" != xnone && PKG_CONFIG_LIBDIR=yes])
4177 case x$PKG_CONFIG_LIBDIR in
4181 # Look for the library directory using the same prefix as the executable
4182 if test "x$PKG_CONFIG" = xnone
4186 cf_path=`echo "$PKG_CONFIG" | sed -e 's,/[[^/]]*/[[^/]]*$,,'`
4189 # If you don't like using the default architecture, you have to specify the
4190 # intended library directory and corresponding compiler/linker options.
4192 # This case allows for Debian's 2014-flavor of multiarch, along with the
4193 # most common variations before that point. Some other variants spell the
4194 # directory differently, e.g., "pkg-config", and put it in unusual places.
4195 # pkg-config has always been poorly standardized, which is ironic...
4196 case x`(arch) 2>/dev/null` in
4199 $cf_path/lib/*64-linux-gnu \
4207 $cf_path/lib/*-linux-gnu \
4216 for cf_config in $cf_search_path
4218 CF_VERBOSE(checking $cf_config/pkgconfig)
4219 if test -d $cf_config/pkgconfig
4221 PKG_CONFIG_LIBDIR=$cf_config/pkgconfig
4222 AC_MSG_CHECKING(done)
4231 if test "x$PKG_CONFIG_LIBDIR" != xno ; then
4232 AC_MSG_RESULT($PKG_CONFIG_LIBDIR)
4235 AC_SUBST(PKG_CONFIG_LIBDIR)
4237 dnl ---------------------------------------------------------------------------
4238 dnl CF_WITH_PTHREAD version: 7 updated: 2015/04/18 08:56:57
4240 dnl Check for POSIX thread library.
4241 AC_DEFUN([CF_WITH_PTHREAD],
4243 AC_MSG_CHECKING(if you want to link with the pthread library)
4244 AC_ARG_WITH(pthread,
4245 [ --with-pthread use POSIX thread library],
4246 [with_pthread=$withval],
4248 AC_MSG_RESULT($with_pthread)
4250 if test "$with_pthread" != no ; then
4251 AC_CHECK_HEADER(pthread.h,[
4252 AC_DEFINE(HAVE_PTHREADS_H,1,[Define to 1 if we have pthreads.h header])
4254 for cf_lib_pthread in pthread c_r
4256 AC_MSG_CHECKING(if we can link with the $cf_lib_pthread library)
4257 cf_save_LIBS="$LIBS"
4258 CF_ADD_LIB($cf_lib_pthread)
4260 #include <pthread.h>
4262 int rc = pthread_create(0,0,0,0);
4263 int r2 = pthread_mutexattr_settype(0, 0);
4264 ],[with_pthread=yes],[with_pthread=no])
4265 LIBS="$cf_save_LIBS"
4266 AC_MSG_RESULT($with_pthread)
4267 test "$with_pthread" = yes && break
4270 if test "$with_pthread" = yes ; then
4271 CF_ADD_LIB($cf_lib_pthread)
4272 AC_DEFINE(HAVE_LIBPTHREADS,1,[Define to 1 if we have pthreads library])
4274 AC_MSG_ERROR(Cannot link with pthread library)
4279 dnl ---------------------------------------------------------------------------
4280 dnl CF_WITH_SYSTYPE version: 1 updated: 2013/01/26 16:26:12
4282 dnl For testing, override the derived host system-type which is used to decide
4283 dnl things such as the linker commands used to build shared libraries. This is
4284 dnl normally chosen automatically based on the type of system which you are
4285 dnl building on. We use it for testing the configure script.
4287 dnl This is different from the --host option: it is used only for testing parts
4288 dnl of the configure script which would not be reachable with --host since that
4289 dnl relies on the build environment being real, rather than mocked up.
4290 AC_DEFUN([CF_WITH_SYSTYPE],[
4291 CF_CHECK_CACHE([AC_CANONICAL_SYSTEM])
4292 AC_ARG_WITH(system-type,
4293 [ --with-system-type=XXX test: override derived host system-type],
4294 [AC_MSG_WARN(overriding system type to $withval)
4295 cf_cv_system_name=$withval
4299 dnl ---------------------------------------------------------------------------
4300 dnl CF_XOPEN_SOURCE version: 55 updated: 2018/12/31 20:46:17
4302 dnl Try to get _XOPEN_SOURCE defined properly that we can use POSIX functions,
4303 dnl or adapt to the vendor's definitions to get equivalent functionality,
4304 dnl without losing the common non-POSIX features.
4307 dnl $1 is the nominal value for _XOPEN_SOURCE
4308 dnl $2 is the nominal value for _POSIX_C_SOURCE
4309 AC_DEFUN([CF_XOPEN_SOURCE],[
4310 AC_REQUIRE([AC_CANONICAL_HOST])
4311 AC_REQUIRE([CF_POSIX_VISIBLE])
4313 if test "$cf_cv_posix_visible" = no; then
4315 cf_XOPEN_SOURCE=ifelse([$1],,500,[$1])
4316 cf_POSIX_C_SOURCE=ifelse([$2],,199506L,[$2])
4321 cf_xopen_source="-D_ALL_SOURCE"
4327 cf_xopen_source="-D_APPLE_C_SOURCE"
4330 cf_xopen_source="-D_DARWIN_C_SOURCE"
4333 (freebsd*|dragonfly*|midnightbsd*)
4334 # 5.x headers associate
4335 # _XOPEN_SOURCE=600 with _POSIX_C_SOURCE=200112L
4336 # _XOPEN_SOURCE=500 with _POSIX_C_SOURCE=199506L
4337 cf_POSIX_C_SOURCE=200112L
4339 cf_xopen_source="-D_BSD_TYPES -D__BSD_VISIBLE -D_POSIX_C_SOURCE=$cf_POSIX_C_SOURCE -D_XOPEN_SOURCE=$cf_XOPEN_SOURCE"
4342 cf_xopen_source="-D_HPUX_SOURCE -D_XOPEN_SOURCE=500"
4345 cf_xopen_source="-D_HPUX_SOURCE"
4348 cf_xopen_source="-D_SGI_SOURCE"
4351 (linux*|uclinux*|gnu*|mint*|k*bsd*-gnu|cygwin)
4352 CF_GNU_SOURCE($cf_XOPEN_SOURCE)
4355 cf_xopen_source="-D_NETBSD_SOURCE" # POSIX.1-2001 features are ifdef'd with this...
4358 # setting _XOPEN_SOURCE or _POSIX_SOURCE breaks <sys/select.h> and other headers which use u_int / u_short types
4360 CF_POSIX_C_SOURCE($cf_POSIX_C_SOURCE)
4363 cf_xopen_source="-D_NETBSD_SOURCE" # setting _XOPEN_SOURCE breaks IPv6 for lynx on NetBSD 1.6, breaks xterm, is not needed for ncursesw
4366 # setting _XOPEN_SOURCE lower than 500 breaks g++ compile with wchar.h, needed for ncursesw
4367 cf_xopen_source="-D_BSD_SOURCE"
4371 # setting _XOPEN_SOURCE breaks xterm on OpenBSD 2.8, is not needed for ncursesw
4374 cf_xopen_source="-D_OSF_SOURCE"
4377 cf_xopen_source="-D_QNX_SOURCE"
4380 # setting _XOPEN_SOURCE breaks Lynx on SCO Unix / OpenServer
4383 cf_xopen_source="-D__EXTENSIONS__"
4384 cf_cv_xopen_source=broken
4386 (sysv4.2uw2.*) # Novell/SCO UnixWare 2.x (tested on 2.1.2)
4392 CF_POSIX_C_SOURCE($cf_POSIX_C_SOURCE)
4396 if test -n "$cf_xopen_source" ; then
4397 CF_ADD_CFLAGS($cf_xopen_source,true)
4400 dnl In anything but the default case, we may have system-specific setting
4401 dnl which is still not guaranteed to provide all of the entrypoints that
4402 dnl _XOPEN_SOURCE would yield.
4403 if test -n "$cf_XOPEN_SOURCE" && test -z "$cf_cv_xopen_source" ; then
4404 AC_MSG_CHECKING(if _XOPEN_SOURCE really is set)
4405 AC_TRY_COMPILE([#include <stdlib.h>],[
4406 #ifndef _XOPEN_SOURCE
4409 [cf_XOPEN_SOURCE_set=yes],
4410 [cf_XOPEN_SOURCE_set=no])
4411 AC_MSG_RESULT($cf_XOPEN_SOURCE_set)
4412 if test $cf_XOPEN_SOURCE_set = yes
4414 AC_TRY_COMPILE([#include <stdlib.h>],[
4415 #if (_XOPEN_SOURCE - 0) < $cf_XOPEN_SOURCE
4418 [cf_XOPEN_SOURCE_set_ok=yes],
4419 [cf_XOPEN_SOURCE_set_ok=no])
4420 if test $cf_XOPEN_SOURCE_set_ok = no
4422 AC_MSG_WARN(_XOPEN_SOURCE is lower than requested)
4428 fi # cf_cv_posix_visible