1 dnl***************************************************************************
2 dnl Copyright 2018-2022,2023 Thomas E. Dickey *
3 dnl Copyright 2010-2017,2018 Free Software Foundation, Inc. *
5 dnl Permission is hereby granted, free of charge, to any person obtaining a *
6 dnl copy of this software and associated documentation files (the *
7 dnl "Software"), to deal in the Software without restriction, including *
8 dnl without limitation the rights to use, copy, modify, merge, publish, *
9 dnl distribute, distribute with modifications, sublicense, and/or sell *
10 dnl copies of the Software, and to permit persons to whom the Software is *
11 dnl furnished to do so, subject to the following conditions: *
13 dnl The above copyright notice and this permission notice shall be included *
14 dnl in all copies or substantial portions of the Software. *
16 dnl THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
17 dnl OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
18 dnl MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
19 dnl IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
20 dnl DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
21 dnl OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
22 dnl THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
24 dnl Except as contained in this notice, the name(s) of the above copyright *
25 dnl holders shall not be used in advertising or otherwise to promote the *
26 dnl sale, use or other dealings in this Software without prior written *
28 dnl***************************************************************************
30 dnl Author: Thomas E. Dickey
32 dnl $Id: aclocal.m4,v 1.205 2023/10/28 16:05:04 tom Exp $
33 dnl Macros used in NCURSES Ada95 auto-configuration script.
35 dnl These macros are maintained separately from NCURSES. The copyright on
36 dnl this file applies to the aggregation of macros and does not affect use of
37 dnl these macros in other applications.
39 dnl See these pages for additional information:
40 dnl https://invisible-island.net/autoconf/
41 dnl https://invisible-island.net/autoconf/my-autoconf.html
43 dnl ---------------------------------------------------------------------------
44 dnl ---------------------------------------------------------------------------
45 dnl CF_ACVERSION_CHECK version: 5 updated: 2014/06/04 19:11:49
46 dnl ------------------
47 dnl Conditionally generate script according to whether we're using a given autoconf.
49 dnl $1 = version to compare against
50 dnl $2 = code to use if AC_ACVERSION is at least as high as $1.
51 dnl $3 = code to use if AC_ACVERSION is older than $1.
52 define([CF_ACVERSION_CHECK],
54 ifdef([AC_ACVERSION], ,[ifdef([AC_AUTOCONF_VERSION],[m4_copy([AC_AUTOCONF_VERSION],[AC_ACVERSION])],[m4_copy([m4_PACKAGE_VERSION],[AC_ACVERSION])])])dnl
55 ifdef([m4_version_compare],
56 [m4_if(m4_version_compare(m4_defn([AC_ACVERSION]), [$1]), -1, [$3], [$2])],
57 [CF_ACVERSION_COMPARE(
58 AC_PREREQ_CANON(AC_PREREQ_SPLIT([$1])),
59 AC_PREREQ_CANON(AC_PREREQ_SPLIT(AC_ACVERSION)), AC_ACVERSION, [$2], [$3])])])dnl
60 dnl ---------------------------------------------------------------------------
61 dnl CF_ACVERSION_COMPARE version: 3 updated: 2012/10/03 18:39:53
62 dnl --------------------
63 dnl CF_ACVERSION_COMPARE(MAJOR1, MINOR1, TERNARY1,
64 dnl MAJOR2, MINOR2, TERNARY2,
65 dnl PRINTABLE2, not FOUND, FOUND)
66 define([CF_ACVERSION_COMPARE],
67 [ifelse(builtin([eval], [$2 < $5]), 1,
68 [ifelse([$8], , ,[$8])],
69 [ifelse([$9], , ,[$9])])])dnl
70 dnl ---------------------------------------------------------------------------
71 dnl CF_ADA_INCLUDE_DIRS version: 8 updated: 2013/10/14 04:24:07
72 dnl -------------------
73 dnl Construct the list of include-options for the C programs in the Ada95
75 AC_DEFUN([CF_ADA_INCLUDE_DIRS],
77 ACPPFLAGS="-I. -I../include -I../../include $ACPPFLAGS"
78 if test "$srcdir" != "."; then
79 ACPPFLAGS="-I\${srcdir}/../../include $ACPPFLAGS"
81 if test "$GCC" != yes; then
82 ACPPFLAGS="$ACPPFLAGS -I\${includedir}"
83 elif test "$includedir" != "/usr/include"; then
84 if test "$includedir" = '${prefix}/include' ; then
85 if test x$prefix != x/usr ; then
86 ACPPFLAGS="$ACPPFLAGS -I\${includedir}"
89 ACPPFLAGS="$ACPPFLAGS -I\${includedir}"
94 dnl ---------------------------------------------------------------------------
95 dnl CF_ADD_ADAFLAGS version: 1 updated: 2010/06/19 15:22:18
97 dnl Add to $ADAFLAGS, which is substituted into makefile and scripts.
98 AC_DEFUN([CF_ADD_ADAFLAGS],[
99 ADAFLAGS="$ADAFLAGS $1"
102 dnl ---------------------------------------------------------------------------
103 dnl CF_ADD_CFLAGS version: 15 updated: 2020/12/31 10:54:15
105 dnl Copy non-preprocessor flags to $CFLAGS, preprocessor flags to $CPPFLAGS
106 dnl $1 = flags to add
107 dnl $2 = if given makes this macro verbose.
109 dnl Put any preprocessor definitions that use quoted strings in $EXTRA_CPPFLAGS,
110 dnl to simplify use of $CPPFLAGS in compiler checks, etc., that are easily
111 dnl confused by the quotes (which require backslashes to keep them usable).
112 AC_DEFUN([CF_ADD_CFLAGS],
117 cf_new_extra_cppflags=
119 for cf_add_cflags in $1
121 case "$cf_fix_cppflags" in
123 case "$cf_add_cflags" in
124 (-undef|-nostdinc*|-I*|-D*|-U*|-E|-P|-C)
125 case "$cf_add_cflags" in
127 cf_tst_cflags=`echo "${cf_add_cflags}" |sed -e 's/^-D[[^=]]*='\''\"[[^"]]*//'`
129 test "x${cf_add_cflags}" != "x${cf_tst_cflags}" \
130 && test -z "${cf_tst_cflags}" \
131 && cf_fix_cppflags=yes
133 if test "$cf_fix_cppflags" = yes ; then
134 CF_APPEND_TEXT(cf_new_extra_cppflags,$cf_add_cflags)
136 elif test "${cf_tst_cflags}" = "\"'" ; then
137 CF_APPEND_TEXT(cf_new_extra_cppflags,$cf_add_cflags)
146 case "$cf_add_cflags" in
148 cf_tst_cppflags=`echo "x$cf_add_cflags" | sed -e 's/^...//' -e 's/=.*//'`
149 CF_REMOVE_DEFINE(CPPFLAGS,$CPPFLAGS,$cf_tst_cppflags)
152 CF_APPEND_TEXT(cf_new_cppflags,$cf_add_cflags)
157 CF_APPEND_TEXT(cf_new_cflags,$cf_add_cflags)
162 CF_APPEND_TEXT(cf_new_extra_cppflags,$cf_add_cflags)
164 cf_tst_cflags=`echo "${cf_add_cflags}" |sed -e 's/^[[^"]]*"'\''//'`
166 test "x${cf_add_cflags}" != "x${cf_tst_cflags}" \
167 && test -z "${cf_tst_cflags}" \
168 && cf_fix_cppflags=no
173 if test -n "$cf_new_cflags" ; then
174 ifelse([$2],,,[CF_VERBOSE(add to \$CFLAGS $cf_new_cflags)])
175 CF_APPEND_TEXT(CFLAGS,$cf_new_cflags)
178 if test -n "$cf_new_cppflags" ; then
179 ifelse([$2],,,[CF_VERBOSE(add to \$CPPFLAGS $cf_new_cppflags)])
180 CF_APPEND_TEXT(CPPFLAGS,$cf_new_cppflags)
183 if test -n "$cf_new_extra_cppflags" ; then
184 ifelse([$2],,,[CF_VERBOSE(add to \$EXTRA_CPPFLAGS $cf_new_extra_cppflags)])
185 CF_APPEND_TEXT(EXTRA_CPPFLAGS,$cf_new_extra_cppflags)
188 AC_SUBST(EXTRA_CPPFLAGS)
191 dnl ---------------------------------------------------------------------------
192 dnl CF_ADD_INCDIR version: 17 updated: 2021/09/04 06:35:04
194 dnl Add an include-directory to $CPPFLAGS. Don't add /usr/include, since it is
195 dnl redundant. We don't normally need to add -I/usr/local/include for gcc,
196 dnl but old versions (and some misinstalled ones) need that. To make things
197 dnl worse, gcc 3.x may give error messages if -I/usr/local/include is added to
198 dnl the include-path).
199 AC_DEFUN([CF_ADD_INCDIR],
201 if test -n "$1" ; then
202 for cf_add_incdir in $1
204 while test "$cf_add_incdir" != /usr/include
206 if test -d "$cf_add_incdir"
209 if test -n "$CFLAGS$CPPFLAGS" ; then
210 # a loop is needed to ensure we can add subdirs of existing dirs
211 for cf_test_incdir in $CFLAGS $CPPFLAGS ; do
212 if test ".$cf_test_incdir" = ".-I$cf_add_incdir" ; then
213 cf_have_incdir=yes; break
218 if test "$cf_have_incdir" = no ; then
219 if test "$cf_add_incdir" = /usr/local/include ; then
222 cf_save_CPPFLAGS=$CPPFLAGS
223 CF_APPEND_TEXT(CPPFLAGS,-I$cf_add_incdir)
224 AC_TRY_COMPILE([#include <stdio.h>],
227 [cf_have_incdir=yes])
228 CPPFLAGS=$cf_save_CPPFLAGS
233 if test "$cf_have_incdir" = no ; then
234 CF_VERBOSE(adding $cf_add_incdir to include-path)
235 ifelse([$2],,CPPFLAGS,[$2])="$ifelse([$2],,CPPFLAGS,[$2]) -I$cf_add_incdir"
237 cf_top_incdir=`echo "$cf_add_incdir" | sed -e 's%/include/.*$%/include%'`
238 test "$cf_top_incdir" = "$cf_add_incdir" && break
239 cf_add_incdir="$cf_top_incdir"
250 dnl ---------------------------------------------------------------------------
251 dnl CF_ADD_LIB version: 2 updated: 2010/06/02 05:03:05
253 dnl Add a library, used to enforce consistency.
255 dnl $1 = library to add, without the "-l"
256 dnl $2 = variable to update (default $LIBS)
257 AC_DEFUN([CF_ADD_LIB],[CF_ADD_LIBS(-l$1,ifelse($2,,LIBS,[$2]))])dnl
258 dnl ---------------------------------------------------------------------------
259 dnl CF_ADD_LIBDIR version: 11 updated: 2020/12/31 20:19:42
261 dnl Adds to the library-path
263 dnl Some machines have trouble with multiple -L options.
265 dnl $1 is the (list of) directory(s) to add
266 dnl $2 is the optional name of the variable to update (default LDFLAGS)
268 AC_DEFUN([CF_ADD_LIBDIR],
270 if test -n "$1" ; then
271 for cf_add_libdir in $1
273 if test "$cf_add_libdir" = /usr/lib ; then
275 elif test -d "$cf_add_libdir"
278 if test -n "$LDFLAGS$LIBS" ; then
279 # a loop is needed to ensure we can add subdirs of existing dirs
280 for cf_test_libdir in $LDFLAGS $LIBS ; do
281 if test ".$cf_test_libdir" = ".-L$cf_add_libdir" ; then
282 cf_have_libdir=yes; break
286 if test "$cf_have_libdir" = no ; then
287 CF_VERBOSE(adding $cf_add_libdir to library-path)
288 ifelse([$2],,LDFLAGS,[$2])="-L$cf_add_libdir $ifelse([$2],,LDFLAGS,[$2])"
294 dnl ---------------------------------------------------------------------------
295 dnl CF_ADD_LIBS version: 3 updated: 2019/11/02 16:47:33
297 dnl Add one or more libraries, used to enforce consistency. Libraries are
298 dnl prepended to an existing list, since their dependencies are assumed to
299 dnl already exist in the list.
301 dnl $1 = libraries to add, with the "-l", etc.
302 dnl $2 = variable to update (default $LIBS)
303 AC_DEFUN([CF_ADD_LIBS],[
304 cf_add_libs="[$]ifelse($2,,LIBS,[$2])"
307 for cf_add_1lib in $1; do cf_add_0lib="$cf_add_1lib $cf_add_0lib"; done
309 for cf_add_1lib in $cf_add_0lib; do
310 for cf_add_2lib in $cf_add_libs; do
311 if test "x$cf_add_1lib" = "x$cf_add_2lib"; then
316 test -n "$cf_add_1lib" && cf_add_libs="$cf_add_1lib $cf_add_libs"
318 ifelse($2,,LIBS,[$2])="$cf_add_libs"
320 dnl ---------------------------------------------------------------------------
321 dnl CF_ADD_SUBDIR_PATH version: 5 updated: 2020/12/31 20:19:42
322 dnl ------------------
323 dnl Append to a search-list for a nonstandard header/lib-file
324 dnl $1 = the variable to return as result
325 dnl $2 = the package name
326 dnl $3 = the subdirectory, e.g., bin, include or lib
327 dnl $4 = the directory under which we will test for subdirectories
328 dnl $5 = a directory that we do not want $4 to match
329 AC_DEFUN([CF_ADD_SUBDIR_PATH],
331 test "x$4" != "x$5" && \
333 ifelse([$5],NONE,,[{ test -z "$5" || test "x$5" = xNONE || test "x$4" != "x$5"; } &&]) {
334 test -n "$verbose" && echo " ... testing for $3-directories under $4"
335 test -d "$4/$3" && $1="[$]$1 $4/$3"
336 test -d "$4/$3/$2" && $1="[$]$1 $4/$3/$2"
337 test -d "$4/$3/$2/$3" && $1="[$]$1 $4/$3/$2/$3"
338 test -d "$4/$2/$3" && $1="[$]$1 $4/$2/$3"
339 test -d "$4/$2/$3/$2" && $1="[$]$1 $4/$2/$3/$2"
342 dnl ---------------------------------------------------------------------------
343 dnl CF_APPEND_CFLAGS version: 3 updated: 2021/09/05 17:25:40
345 dnl Use CF_ADD_CFLAGS after first checking for potential redefinitions.
346 dnl $1 = flags to add
347 dnl $2 = if given makes this macro verbose.
348 define([CF_APPEND_CFLAGS],
350 for cf_add_cflags in $1
352 case "x$cf_add_cflags" in
354 CF_REMOVE_CFLAGS($cf_add_cflags,CFLAGS,[$2])
355 CF_REMOVE_CFLAGS($cf_add_cflags,CPPFLAGS,[$2])
358 CF_ADD_CFLAGS([$cf_add_cflags],[$2])
361 dnl ---------------------------------------------------------------------------
362 dnl CF_APPEND_TEXT version: 1 updated: 2017/02/25 18:58:55
364 dnl use this macro for appending text without introducing an extra blank at
366 define([CF_APPEND_TEXT],
368 test -n "[$]$1" && $1="[$]$1 "
371 dnl ---------------------------------------------------------------------------
372 dnl CF_ARG_DISABLE version: 3 updated: 1999/03/30 17:24:31
374 dnl Allow user to disable a normally-on option.
375 AC_DEFUN([CF_ARG_DISABLE],
376 [CF_ARG_OPTION($1,[$2],[$3],[$4],yes)])dnl
377 dnl ---------------------------------------------------------------------------
378 dnl CF_ARG_ENABLE version: 3 updated: 1999/03/30 17:24:31
380 dnl Allow user to enable a normally-off option.
381 AC_DEFUN([CF_ARG_ENABLE],
382 [CF_ARG_OPTION($1,[$2],[$3],[$4],no)])dnl
383 dnl ---------------------------------------------------------------------------
384 dnl CF_ARG_OPTION version: 5 updated: 2015/05/10 19:52:14
386 dnl Restricted form of AC_ARG_ENABLE that ensures user doesn't give bogus
392 dnl $3 = action to perform if option is not default
393 dnl $4 = action if perform if option is default
394 dnl $5 = default option value (either 'yes' or 'no')
395 AC_DEFUN([CF_ARG_OPTION],
396 [AC_ARG_ENABLE([$1],[$2],[test "$enableval" != ifelse([$5],no,yes,no) && enableval=ifelse([$5],no,no,yes)
397 if test "$enableval" != "$5" ; then
399 ,[ $3]) ifelse([$4],,,[
402 fi],[enableval=$5 ifelse([$4],,,[
406 dnl ---------------------------------------------------------------------------
407 dnl CF_AR_FLAGS version: 9 updated: 2021/01/01 13:31:04
409 dnl Check for suitable "ar" (archiver) options for updating an archive.
411 dnl In particular, handle some obsolete cases where the "-" might be omitted,
412 dnl as well as a workaround for breakage of make's archive rules by the GNU
413 dnl binutils "ar" program.
414 AC_DEFUN([CF_AR_FLAGS],[
415 AC_REQUIRE([CF_PROG_AR])
417 AC_CACHE_CHECK(for options to update archives, cf_cv_ar_flags,[
418 case "$cf_cv_system_name" in
421 cat >mk_static_lib.sh <<-EOF
426 exec \[$]MSVC_BIN -out:"\[$]out" \[$]@
428 chmod +x mk_static_lib.sh
429 AR=`pwd`/mk_static_lib.sh
432 cf_cv_ar_flags=unknown
433 for cf_ar_flags in -curvU -curv curv -crv crv -cqv cqv -rv rv
436 # check if $ARFLAGS already contains this choice
437 if test "x$ARFLAGS" != "x" ; then
438 cf_check_ar_flags=`echo "x$ARFLAGS" | sed -e "s/$cf_ar_flags\$//" -e "s/$cf_ar_flags / /"`
439 if test "x$ARFLAGS" != "$cf_check_ar_flags" ; then
445 rm -f "conftest.$ac_cv_objext"
448 cat >"conftest.$ac_ext" <<EOF
449 #line __oline__ "configure"
450 int testdata[[3]] = { 123, 456, 789 };
452 if AC_TRY_EVAL(ac_compile) ; then
453 echo "$AR $ARFLAGS $cf_ar_flags conftest.a conftest.$ac_cv_objext" >&AC_FD_CC
454 $AR $ARFLAGS "$cf_ar_flags" conftest.a "conftest.$ac_cv_objext" 2>&AC_FD_CC 1>/dev/null
455 if test -f conftest.a ; then
456 cf_cv_ar_flags="$cf_ar_flags"
460 CF_VERBOSE(cannot compile test-program)
464 rm -f conftest.a "conftest.$ac_ext" "conftest.$ac_cv_objext"
469 if test -n "$ARFLAGS" ; then
470 if test -n "$cf_cv_ar_flags" ; then
471 ARFLAGS="$ARFLAGS $cf_cv_ar_flags"
474 ARFLAGS=$cf_cv_ar_flags
479 dnl ---------------------------------------------------------------------------
480 dnl CF_BUILD_CC version: 11 updated: 2022/12/04 15:40:08
482 dnl If we're cross-compiling, allow the user to override the tools and their
483 dnl options. The configure script is oriented toward identifying the host
484 dnl compiler, etc., but we need a build compiler to generate parts of the
487 dnl $1 = default for $CPPFLAGS
488 dnl $2 = default for $LIBS
489 AC_DEFUN([CF_BUILD_CC],[
490 CF_ACVERSION_CHECK(2.52,,
491 [AC_REQUIRE([CF_PROG_EXT])])
492 if test "$cross_compiling" = yes ; then
494 # defaults that we might want to override
495 : ${BUILD_CFLAGS:=''}
496 : ${BUILD_CPPFLAGS:='ifelse([$1],,,[$1])'}
497 : ${BUILD_LDFLAGS:=''}
498 : ${BUILD_LIBS:='ifelse([$2],,,[$2])'}
499 : ${BUILD_EXEEXT:='$x'}
500 : ${BUILD_OBJEXT:='o'}
502 AC_ARG_WITH(build-cc,
503 [ --with-build-cc=XXX the build C compiler ($BUILD_CC)],
504 [BUILD_CC="$withval"],
505 [AC_CHECK_PROGS(BUILD_CC, [gcc clang c99 c89 cc cl],none)])
506 AC_MSG_CHECKING(for native build C compiler)
507 AC_MSG_RESULT($BUILD_CC)
509 AC_MSG_CHECKING(for native build C preprocessor)
510 AC_ARG_WITH(build-cpp,
511 [ --with-build-cpp=XXX the build C preprocessor ($BUILD_CPP)],
512 [BUILD_CPP="$withval"],
513 [BUILD_CPP='${BUILD_CC} -E'])
514 AC_MSG_RESULT($BUILD_CPP)
516 AC_MSG_CHECKING(for native build C flags)
517 AC_ARG_WITH(build-cflags,
518 [ --with-build-cflags=XXX the build C compiler-flags ($BUILD_CFLAGS)],
519 [BUILD_CFLAGS="$withval"])
520 AC_MSG_RESULT($BUILD_CFLAGS)
522 AC_MSG_CHECKING(for native build C preprocessor-flags)
523 AC_ARG_WITH(build-cppflags,
524 [ --with-build-cppflags=XXX the build C preprocessor-flags ($BUILD_CPPFLAGS)],
525 [BUILD_CPPFLAGS="$withval"])
526 AC_MSG_RESULT($BUILD_CPPFLAGS)
528 AC_MSG_CHECKING(for native build linker-flags)
529 AC_ARG_WITH(build-ldflags,
530 [ --with-build-ldflags=XXX the build linker-flags ($BUILD_LDFLAGS)],
531 [BUILD_LDFLAGS="$withval"])
532 AC_MSG_RESULT($BUILD_LDFLAGS)
534 AC_MSG_CHECKING(for native build linker-libraries)
535 AC_ARG_WITH(build-libs,
536 [ --with-build-libs=XXX the build libraries (${BUILD_LIBS})],
537 [BUILD_LIBS="$withval"])
538 AC_MSG_RESULT($BUILD_LIBS)
540 # this assumes we're on Unix.
544 : ${BUILD_CC:='${CC}'}
546 AC_MSG_CHECKING(if the build-compiler "$BUILD_CC" works)
548 cf_save_crossed=$cross_compiling
549 cf_save_ac_link=$ac_link
551 cf_build_cppflags=$BUILD_CPPFLAGS
552 test "$cf_build_cppflags" = "#" && cf_build_cppflags=
553 ac_link='$BUILD_CC -o "conftest$ac_exeext" $BUILD_CFLAGS $cf_build_cppflags $BUILD_LDFLAGS "conftest.$ac_ext" $BUILD_LIBS >&AS_MESSAGE_LOG_FD'
555 AC_TRY_RUN([#include <stdio.h>
556 int main(int argc, char *argv[])
558 ${cf_cv_main_return:-return}(argc < 0 || argv == 0 || argv[0] == 0);
563 cf_ok_build_cc=unknown)
565 cross_compiling=$cf_save_crossed
566 ac_link=$cf_save_ac_link
568 AC_MSG_RESULT($cf_ok_build_cc)
570 if test "$cf_ok_build_cc" != yes
572 AC_MSG_ERROR([Cross-build requires two compilers.
573 Use --with-build-cc to specify the native compiler.])
577 : ${BUILD_CC:='${CC}'}
578 : ${BUILD_CPP:='${CPP}'}
579 : ${BUILD_CFLAGS:='${CFLAGS}'}
580 : ${BUILD_CPPFLAGS:='${CPPFLAGS}'}
581 : ${BUILD_LDFLAGS:='${LDFLAGS}'}
582 : ${BUILD_LIBS:='${LIBS}'}
583 : ${BUILD_EXEEXT:='$x'}
584 : ${BUILD_OBJEXT:='o'}
589 AC_SUBST(BUILD_CFLAGS)
590 AC_SUBST(BUILD_CPPFLAGS)
591 AC_SUBST(BUILD_LDFLAGS)
593 AC_SUBST(BUILD_EXEEXT)
594 AC_SUBST(BUILD_OBJEXT)
596 dnl ---------------------------------------------------------------------------
597 dnl CF_C11_NORETURN version: 4 updated: 2023/02/18 17:41:25
599 AC_DEFUN([CF_C11_NORETURN],
601 AC_MSG_CHECKING(if you want to use C11 _Noreturn feature)
602 CF_ARG_ENABLE(stdnoreturn,
603 [ --enable-stdnoreturn enable C11 _Noreturn feature for diagnostics],
604 [enable_stdnoreturn=yes],
605 [enable_stdnoreturn=no])
606 AC_MSG_RESULT($enable_stdnoreturn)
608 if test $enable_stdnoreturn = yes; then
609 AC_CACHE_CHECK([for C11 _Noreturn feature], cf_cv_c11_noreturn,
612 #include <stdnoreturn.h>
613 static _Noreturn void giveup(void) { exit(0); }
615 [if (feof(stdin)) giveup()],
616 cf_cv_c11_noreturn=yes,
617 cf_cv_c11_noreturn=no)
620 cf_cv_c11_noreturn=no,
623 if test "$cf_cv_c11_noreturn" = yes; then
624 AC_DEFINE(HAVE_STDNORETURN_H, 1,[Define if <stdnoreturn.h> header is available and working])
625 AC_DEFINE_UNQUOTED(STDC_NORETURN,_Noreturn,[Define if C11 _Noreturn keyword is supported])
631 AC_SUBST(HAVE_STDNORETURN_H)
632 AC_SUBST(STDC_NORETURN)
634 dnl ---------------------------------------------------------------------------
635 dnl CF_CC_ENV_FLAGS version: 11 updated: 2023/02/20 11:15:46
637 dnl Check for user's environment-breakage by stuffing CFLAGS/CPPFLAGS content
638 dnl into CC. This will not help with broken scripts that wrap the compiler
639 dnl with options, but eliminates a more common category of user confusion.
641 dnl In particular, it addresses the problem of being able to run the C
642 dnl preprocessor in a consistent manner.
644 dnl Caveat: this also disallows blanks in the pathname for the compiler, but
645 dnl the nuisance of having inconsistent settings for compiler and preprocessor
646 dnl outweighs that limitation.
647 AC_DEFUN([CF_CC_ENV_FLAGS],
649 # This should have been defined by AC_PROG_CC
652 AC_MSG_CHECKING(\$CFLAGS variable)
655 AC_MSG_RESULT(broken)
656 AC_MSG_WARN(your environment uses the CFLAGS variable to hold CPPFLAGS options)
659 for cf_arg in $cf_flags
661 CF_ADD_CFLAGS($cf_arg)
669 AC_MSG_CHECKING(\$CC variable)
672 AC_MSG_RESULT(broken)
673 AC_MSG_WARN(your environment uses the CC variable to hold CFLAGS/CPPFLAGS options)
675 cf_prog=`echo "$CC" | sed -e 's/ / /g' -e 's/[[ ]]* / /g' -e 's/[[ ]]*[[ ]]-[[^ ]].*//'`
676 cf_flags=`echo "$CC" | sed -e "s%^$cf_prog%%"`
678 for cf_arg in $cf_flags
682 CF_ADD_CFLAGS($cf_arg)
689 CF_VERBOSE(resulting CC: '$CC')
690 CF_VERBOSE(resulting CFLAGS: '$CFLAGS')
691 CF_VERBOSE(resulting CPPFLAGS: '$CPPFLAGS')
698 dnl ---------------------------------------------------------------------------
699 dnl CF_CFG_DEFAULTS version: 16 updated: 2021/01/04 19:33:05
701 dnl Determine the default configuration into which we'll install ncurses. This
702 dnl can be overridden by the user's command-line options. There's two items to
704 dnl 1. the prefix (e.g., /usr)
705 dnl 2. the header files (e.g., /usr/include/ncurses)
706 dnl We'll look for a previous installation of ncurses and use the same defaults.
708 dnl We don't use AC_PREFIX_DEFAULT, because it gets evaluated too soon, and
709 dnl we don't use AC_PREFIX_PROGRAM, because we cannot distinguish ncurses's
710 dnl programs from a vendor's.
711 AC_DEFUN([CF_CFG_DEFAULTS],
712 [AC_REQUIRE([AC_PROG_FGREP])dnl
714 AC_MSG_CHECKING(for prefix)
715 if test "x$prefix" = "xNONE" ; then
716 case "$cf_cv_system_name" in
717 # non-vendor systems don't have a conflict
718 (openbsd*|freebsd*|mirbsd*|linux*|cygwin*|msys*|k*bsd*-gnu|mingw*)
721 (*) prefix=$ac_default_prefix
725 AC_MSG_RESULT($prefix)
727 if test "x$prefix" = "xNONE" ; then
728 AC_MSG_CHECKING(for default include-directory)
729 test -n "$verbose" && echo 1>&AC_FD_MSG
732 "$includedir/ncurses" \
734 "$prefix/include/ncurses" \
736 /usr/local/include/ncurses \
740 cf_dir=`eval echo "$cf_symbol"`
741 if test -f "$cf_dir/curses.h" ; then
742 if ( ${FGREP-fgrep} NCURSES_VERSION "$cf_dir/curses.h" >/dev/null 2>&1 ) ; then
743 includedir="$cf_symbol"
744 test -n "$verbose" && echo $ECHO_N " found " 1>&AC_FD_MSG
748 test -n "$verbose" && echo " tested $cf_dir" 1>&AC_FD_MSG
750 AC_MSG_RESULT($includedir)
753 dnl ---------------------------------------------------------------------------
754 dnl CF_CHECK_CACHE version: 13 updated: 2020/12/31 10:54:15
756 dnl Check if we're accidentally using a cache from a different machine.
757 dnl Derive the system name, as a check for reusing the autoconf cache.
759 dnl If we've packaged config.guess and config.sub, run that (since it does a
760 dnl better job than uname). Normally we'll use AC_CANONICAL_HOST, but allow
761 dnl an extra parameter that we may override, e.g., for AC_CANONICAL_SYSTEM
762 dnl which is useful in cross-compiles.
764 dnl Note: we would use $ac_config_sub, but that is one of the places where
765 dnl autoconf 2.5x broke compatibility with autoconf 2.13
766 AC_DEFUN([CF_CHECK_CACHE],
768 if test -f "$srcdir/config.guess" || test -f "$ac_aux_dir/config.guess" ; then
769 ifelse([$1],,[AC_CANONICAL_HOST],[$1])
770 system_name="$host_os"
772 system_name="`(uname -s -r) 2>/dev/null`"
773 if test -z "$system_name" ; then
774 system_name="`(hostname) 2>/dev/null`"
777 test -n "$system_name" && AC_DEFINE_UNQUOTED(SYSTEM_NAME,"$system_name",[Define to the system name.])
778 AC_CACHE_VAL(cf_cv_system_name,[cf_cv_system_name="$system_name"])
780 test -z "$system_name" && system_name="$cf_cv_system_name"
781 test -n "$cf_cv_system_name" && AC_MSG_RESULT(Configuring for $cf_cv_system_name)
783 if test ".$system_name" != ".$cf_cv_system_name" ; then
784 AC_MSG_RESULT(Cached system name ($system_name) does not agree with actual ($cf_cv_system_name))
785 AC_MSG_ERROR("Please remove config.cache and try again.")
788 dnl ---------------------------------------------------------------------------
789 dnl CF_CHECK_GNAT_VERSION version: 4 updated: 2021/01/01 13:31:04
790 dnl ---------------------
791 AC_DEFUN([CF_CHECK_GNAT_VERSION],
793 AC_REQUIRE([CF_GNAT_VERSION])
794 case "$cf_cv_gnat_version" in
795 (3.1[[1-9]]*|3.[[2-9]]*|[[4-9]].*|[[1-9]][[0-9]].[[0-9]]*|20[[0-9]][[0-9]])
796 cf_cv_prog_gnat_correct=yes
799 AC_MSG_WARN(Unsupported GNAT version $cf_cv_gnat_version. We require 3.11 or better. Disabling Ada95 binding.)
800 cf_cv_prog_gnat_correct=no
804 dnl ---------------------------------------------------------------------------
805 dnl CF_CHECK_LIBSSP version: 1 updated: 2021/10/30 10:40:19
807 dnl Check if libssp is needed, e.g., to work around misconfigured libraries
808 dnl used in cross-compiling to MinGW.
809 AC_DEFUN([CF_CHECK_LIBSSP],[
810 AC_CACHE_CHECK(if ssp library is needed,cf_cv_need_libssp,[
812 #include <sys/types.h>
815 DIR *dp = opendir(".");
816 ],cf_cv_need_libssp=no,[
820 #include <sys/types.h>
823 DIR *dp = opendir(".");
824 ],cf_cv_need_libssp=yes,
825 cf_cv_need_libssp=maybe)
830 if test "x$cf_cv_need_libssp" = xyes
835 dnl ---------------------------------------------------------------------------
836 dnl CF_CLANG_COMPILER version: 9 updated: 2023/02/18 17:41:25
837 dnl -----------------
838 dnl Check if the given compiler is really clang. clang's C driver defines
839 dnl __GNUC__ (fooling the configure script into setting $GCC to yes) but does
840 dnl not ignore some gcc options.
842 dnl This macro should be run "soon" after AC_PROG_CC or AC_PROG_CPLUSPLUS, to
843 dnl ensure that it is not mistaken for gcc/g++. It is normally invoked from
844 dnl the wrappers for gcc and g++ warnings.
846 dnl $1 = GCC (default) or GXX
847 dnl $2 = CLANG_COMPILER (default)
848 dnl $3 = CFLAGS (default) or CXXFLAGS
849 AC_DEFUN([CF_CLANG_COMPILER],[
850 ifelse([$2],,CLANG_COMPILER,[$2])=no
852 if test "$ifelse([$1],,[$1],GCC)" = yes ; then
853 AC_MSG_CHECKING(if this is really Clang ifelse([$1],GXX,C++,C) compiler)
854 cf_save_CFLAGS="$ifelse([$3],,CFLAGS,[$3])"
858 #error __clang__ is not defined
860 ],[ifelse([$2],,CLANG_COMPILER,[$2])=yes
862 ifelse([$3],,CFLAGS,[$3])="$cf_save_CFLAGS"
863 AC_MSG_RESULT($ifelse([$2],,CLANG_COMPILER,[$2]))
868 if test "x$ifelse([$2],,CLANG_COMPILER,[$2])" = "xyes" ; then
870 (c[[1-9]][[0-9]]|*/c[[1-9]][[0-9]])
871 AC_MSG_WARN(replacing broken compiler alias $CC)
872 CFLAGS="$CFLAGS -std=`echo "$CC" | sed -e 's%.*/%%'`"
877 AC_MSG_CHECKING(version of $CC)
878 CLANG_VERSION="`$CC --version 2>/dev/null | sed -e '2,$d' -e 's/^.*(CLANG[[^)]]*) //' -e 's/^.*(Debian[[^)]]*) //' -e 's/^[[^0-9.]]*//' -e 's/[[^0-9.]].*//'`"
879 test -z "$CLANG_VERSION" && CLANG_VERSION=unknown
880 AC_MSG_RESULT($CLANG_VERSION)
882 for cf_clang_opt in \
884 -Wno-error=implicit-function-declaration
886 AC_MSG_CHECKING(if option $cf_clang_opt works)
887 cf_save_CFLAGS="$CFLAGS"
888 CFLAGS="$CFLAGS $cf_clang_opt"
890 #include <stdio.h>],[
891 printf("hello!\\n");],[
892 cf_clang_optok=yes],[
894 AC_MSG_RESULT($cf_clang_optok)
895 CFLAGS="$cf_save_CFLAGS"
896 if test "$cf_clang_optok" = yes; then
897 CF_VERBOSE(adding option $cf_clang_opt)
898 CF_APPEND_TEXT(CFLAGS,$cf_clang_opt)
903 dnl ---------------------------------------------------------------------------
904 dnl CF_CONST_X_STRING version: 7 updated: 2021/06/07 17:39:17
905 dnl -----------------
906 dnl The X11R4-X11R6 Xt specification uses an ambiguous String type for most
907 dnl character-strings.
909 dnl It is ambiguous because the specification accommodated the pre-ANSI
910 dnl compilers bundled by more than one vendor in lieu of providing a standard C
911 dnl compiler other than by costly add-ons. Because of this, the specification
912 dnl did not take into account the use of const for telling the compiler that
913 dnl string literals would be in readonly memory.
915 dnl As a workaround, one could (starting with X11R5) define XTSTRINGDEFINES, to
916 dnl let the compiler decide how to represent Xt's strings which were #define'd.
917 dnl That does not solve the problem of using the block of Xt's strings which
918 dnl are compiled into the library (and is less efficient than one might want).
920 dnl Xt specification 7 introduces the _CONST_X_STRING symbol which is used both
921 dnl when compiling the library and compiling using the library, to tell the
922 dnl compiler that String is const.
923 AC_DEFUN([CF_CONST_X_STRING],
925 AC_REQUIRE([AC_PATH_XTRA])
927 CF_SAVE_XTRA_FLAGS([CF_CONST_X_STRING])
932 #include <X11/Intrinsic.h>
934 [String foo = malloc(1); free((void*)foo)],[
936 AC_CACHE_CHECK(for X11/Xt const-feature,cf_cv_const_x_string,[
939 #define _CONST_X_STRING /* X11R7.8 (perhaps) */
940 #undef XTSTRINGDEFINES /* X11R5 and later */
942 #include <X11/Intrinsic.h>
943 ],[String foo = malloc(1); *foo = 0],[
944 cf_cv_const_x_string=no
946 cf_cv_const_x_string=yes
950 CF_RESTORE_XTRA_FLAGS([CF_CONST_X_STRING])
952 case "$cf_cv_const_x_string" in
954 CF_APPEND_TEXT(CPPFLAGS,-DXTSTRINGDEFINES)
957 CF_APPEND_TEXT(CPPFLAGS,-D_CONST_X_STRING)
963 dnl ---------------------------------------------------------------------------
964 dnl CF_CONST_X_STRING version: 7 updated: 2021/06/07 17:39:17
965 dnl -----------------
966 dnl The X11R4-X11R6 Xt specification uses an ambiguous String type for most
967 dnl character-strings.
969 dnl It is ambiguous because the specification accommodated the pre-ANSI
970 dnl compilers bundled by more than one vendor in lieu of providing a standard C
971 dnl compiler other than by costly add-ons. Because of this, the specification
972 dnl did not take into account the use of const for telling the compiler that
973 dnl string literals would be in readonly memory.
975 dnl As a workaround, one could (starting with X11R5) define XTSTRINGDEFINES, to
976 dnl let the compiler decide how to represent Xt's strings which were #define'd.
977 dnl That does not solve the problem of using the block of Xt's strings which
978 dnl are compiled into the library (and is less efficient than one might want).
980 dnl Xt specification 7 introduces the _CONST_X_STRING symbol which is used both
981 dnl when compiling the library and compiling using the library, to tell the
982 dnl compiler that String is const.
983 AC_DEFUN([CF_CONST_X_STRING],
985 AC_REQUIRE([AC_PATH_XTRA])
987 CF_SAVE_XTRA_FLAGS([CF_CONST_X_STRING])
992 #include <X11/Intrinsic.h>
994 [String foo = malloc(1); free((void*)foo)],[
996 AC_CACHE_CHECK(for X11/Xt const-feature,cf_cv_const_x_string,[
999 #define _CONST_X_STRING /* X11R7.8 (perhaps) */
1000 #undef XTSTRINGDEFINES /* X11R5 and later */
1002 #include <X11/Intrinsic.h>
1003 ],[String foo = malloc(1); *foo = 0],[
1004 cf_cv_const_x_string=no
1006 cf_cv_const_x_string=yes
1010 CF_RESTORE_XTRA_FLAGS([CF_CONST_X_STRING])
1012 case "$cf_cv_const_x_string" in
1014 CF_APPEND_TEXT(CPPFLAGS,-DXTSTRINGDEFINES)
1017 CF_APPEND_TEXT(CPPFLAGS,-D_CONST_X_STRING)
1023 dnl ---------------------------------------------------------------------------
1024 dnl CF_CURSES_HEADER version: 6 updated: 2022/12/02 20:06:52
1025 dnl ----------------
1026 dnl Find a "curses" header file, e.g,. "curses.h", or one of the more common
1027 dnl variations of ncurses' installs.
1029 dnl $1 = ncurses when looking for ncurses, or is empty
1030 AC_DEFUN([CF_CURSES_HEADER],[
1031 AC_CACHE_CHECK(if we have identified curses headers,cf_cv_ncurses_header,[
1032 cf_cv_ncurses_header=none
1034 ncurses.h ifelse($1,,,[$1/ncurses.h]) \
1035 curses.h ifelse($1,,,[$1/curses.h]) ifelse($1,,[ncurses/ncurses.h ncurses/curses.h])
1037 AC_TRY_COMPILE([#include <${cf_header}>],
1038 [initscr(); endwin()],
1039 [cf_cv_ncurses_header=$cf_header; break],[])
1043 if test "$cf_cv_ncurses_header" = none ; then
1044 AC_MSG_ERROR(No curses header-files found)
1047 # cheat, to get the right #define's for HAVE_NCURSES_H, etc.
1048 AC_CHECK_HEADERS($cf_cv_ncurses_header)
1050 dnl ---------------------------------------------------------------------------
1051 dnl CF_DIRNAME version: 5 updated: 2020/12/31 20:19:42
1053 dnl "dirname" is not portable, so we fake it with a shell script.
1054 AC_DEFUN([CF_DIRNAME],[$1=`echo "$2" | sed -e 's%/[[^/]]*$%%'`])dnl
1055 dnl ---------------------------------------------------------------------------
1056 dnl CF_DISABLE_ECHO version: 14 updated: 2021/09/04 06:35:04
1058 dnl You can always use "make -n" to see the actual options, but it is hard to
1059 dnl pick out/analyze warning messages when the compile-line is long.
1062 dnl ECHO_LT - symbol to control if libtool is verbose
1063 dnl ECHO_LD - symbol to prefix "cc -o" lines
1064 dnl RULE_CC - symbol to put before implicit "cc -c" lines (e.g., .c.o)
1065 dnl SHOW_CC - symbol to put before explicit "cc -c" lines
1066 dnl ECHO_CC - symbol to put before any "cc" line
1068 AC_DEFUN([CF_DISABLE_ECHO],[
1069 AC_MSG_CHECKING(if you want to see long compiling messages)
1070 CF_ARG_DISABLE(echo,
1071 [ --disable-echo do not display "compiling" commands],
1074 ECHO_LD='@echo linking [$]@;'
1075 RULE_CC='@echo compiling [$]<'
1076 SHOW_CC='@echo compiling [$]@'
1085 AC_MSG_RESULT($enableval)
1092 dnl ---------------------------------------------------------------------------
1093 dnl CF_DISABLE_GNAT_PROJECTS version: 1 updated: 2014/06/01 11:34:00
1094 dnl ------------------------
1095 AC_DEFUN([CF_DISABLE_GNAT_PROJECTS],[
1096 AC_MSG_CHECKING(if we want to use GNAT projects)
1097 CF_ARG_DISABLE(gnat-projects,
1098 [ --disable-gnat-projects test: disable GNAT projects even if usable],
1099 [enable_gnat_projects=no],
1100 [enable_gnat_projects=yes])
1101 AC_MSG_RESULT($enable_gnat_projects)
1103 dnl ---------------------------------------------------------------------------
1104 dnl CF_ENABLE_BROKEN_LINKER version: 2 updated: 2021/01/02 17:09:14
1105 dnl -----------------------
1106 dnl Some linkers cannot reference a data-only object. Cygwin used to be one.
1107 dnl This usually follows CF_LINK_DATAONLY, but is not required in case we need
1108 dnl an unconditional feature.
1109 AC_DEFUN([CF_ENABLE_BROKEN_LINKER],[
1111 AC_MSG_CHECKING(if you want broken-linker support code)
1112 AC_ARG_ENABLE(broken_linker,
1113 [ --enable-broken_linker compile with broken-linker support code],
1114 [with_broken_linker=$enableval],
1115 [with_broken_linker=no])
1116 AC_MSG_RESULT($with_broken_linker)
1118 : "${BROKEN_LINKER:=0}"
1119 if test "x$with_broken_linker" = xyes ; then
1120 AC_DEFINE(BROKEN_LINKER,1,[Define to 1 to work around linkers which cannot link data-only modules])
1123 AC_SUBST(BROKEN_LINKER)
1125 dnl ---------------------------------------------------------------------------
1126 dnl CF_ENABLE_WARNINGS version: 9 updated: 2021/01/05 19:40:50
1127 dnl ------------------
1128 dnl Configure-option to enable gcc warnings
1130 dnl $1 = extra options to add, if supported
1131 dnl $2 = option for checking attributes. By default, this is done when
1132 dnl warnings are enabled. For other values:
1133 dnl yes: always do this, e.g., to use in generated library-headers
1134 dnl no: never do this
1135 AC_DEFUN([CF_ENABLE_WARNINGS],[
1136 if test "$GCC" = yes || test "$GXX" = yes
1138 CF_FIX_WARNINGS(CFLAGS)
1139 CF_FIX_WARNINGS(CPPFLAGS)
1140 CF_FIX_WARNINGS(LDFLAGS)
1141 AC_MSG_CHECKING(if you want to turn on gcc warnings)
1142 CF_ARG_ENABLE(warnings,
1143 [ --enable-warnings test: turn on gcc compiler warnings],
1144 [enable_warnings=yes],
1145 [enable_warnings=no])
1146 AC_MSG_RESULT($enable_warnings)
1147 if test "$enable_warnings" = "yes"
1149 ifelse($2,,[CF_GCC_ATTRIBUTES])
1152 ifelse($2,yes,[CF_GCC_ATTRIBUTES])
1155 dnl ---------------------------------------------------------------------------
1156 dnl CF_FIND_LIBRARY version: 11 updated: 2021/01/02 09:31:20
1158 dnl Look for a non-standard library, given parameters for AC_TRY_LINK. We
1159 dnl prefer a standard location, and use -L options only if we do not find the
1160 dnl library in the standard library location(s).
1161 dnl $1 = library name
1162 dnl $2 = library class, usually the same as library name
1164 dnl $4 = code fragment to compile/link
1165 dnl $5 = corresponding function-name
1166 dnl $6 = flag, nonnull if failure should not cause an error-exit
1168 dnl Sets the variable "$cf_libdir" as a side-effect, so we can see if we had
1169 dnl to use a -L option.
1170 AC_DEFUN([CF_FIND_LIBRARY],
1172 eval 'cf_cv_have_lib_'"$1"'=no'
1175 eval 'cf_cv_have_lib_'"$1"'=yes',[
1176 cf_save_LIBS="$LIBS"
1177 AC_MSG_CHECKING(for $5 in -l$1)
1179 AC_TRY_LINK([$3],[$4],
1181 eval 'cf_cv_have_lib_'"$1"'=yes'
1184 CF_LIBRARY_PATH(cf_search,$2)
1185 for cf_libdir in $cf_search
1187 AC_MSG_CHECKING(for -l$1 in $cf_libdir)
1188 LIBS="-L$cf_libdir -l$1 $cf_save_LIBS"
1189 AC_TRY_LINK([$3],[$4],
1191 eval 'cf_cv_have_lib_'"$1"'=yes'
1194 LIBS="$cf_save_LIBS"])
1198 eval 'cf_found_library="[$]cf_cv_have_lib_'"$1"\"
1200 if test "$cf_found_library" = no ; then
1201 AC_MSG_ERROR(Cannot link $1 library)
1205 dnl ---------------------------------------------------------------------------
1206 dnl CF_FIND_LINKAGE version: 22 updated: 2020/12/31 20:19:42
1208 dnl Find a library (specifically the linkage used in the code fragment),
1209 dnl searching for it if it is not already in the library path.
1210 dnl See also CF_ADD_SEARCHPATH.
1212 dnl Parameters (4-on are optional):
1213 dnl $1 = headers for library entrypoint
1214 dnl $2 = code fragment for library entrypoint
1215 dnl $3 = the library name without the "-l" option or ".so" suffix.
1216 dnl $4 = action to perform if successful (default: update CPPFLAGS, etc)
1217 dnl $5 = action to perform if not successful
1218 dnl $6 = module name, if not the same as the library name
1219 dnl $7 = extra libraries
1221 dnl Sets these variables:
1222 dnl $cf_cv_find_linkage_$3 - yes/no according to whether linkage is found
1223 dnl $cf_cv_header_path_$3 - include-directory if needed
1224 dnl $cf_cv_library_path_$3 - library-directory if needed
1225 dnl $cf_cv_library_file_$3 - library-file if needed, e.g., -l$3
1226 AC_DEFUN([CF_FIND_LINKAGE],[
1228 # If the linkage is not already in the $CPPFLAGS/$LDFLAGS configuration, these
1229 # will be set on completion of the AC_TRY_LINK below.
1230 cf_cv_header_path_$3=
1231 cf_cv_library_path_$3=
1233 CF_MSG_LOG([Starting [FIND_LINKAGE]($3,$6)])
1235 cf_save_LIBS="$LIBS"
1237 AC_TRY_LINK([$1],[$2],[
1238 cf_cv_find_linkage_$3=yes
1239 cf_cv_header_path_$3=/usr/include
1240 cf_cv_library_path_$3=/usr/lib
1243 LIBS="-l$3 $7 $cf_save_LIBS"
1245 AC_TRY_LINK([$1],[$2],[
1246 cf_cv_find_linkage_$3=yes
1247 cf_cv_header_path_$3=/usr/include
1248 cf_cv_library_path_$3=/usr/lib
1249 cf_cv_library_file_$3="-l$3"
1251 cf_cv_find_linkage_$3=no
1252 LIBS="$cf_save_LIBS"
1254 CF_VERBOSE(find linkage for $3 library)
1255 CF_MSG_LOG([Searching for headers in [FIND_LINKAGE]($3,$6)])
1257 cf_save_CPPFLAGS="$CPPFLAGS"
1258 cf_test_CPPFLAGS="$CPPFLAGS"
1260 CF_HEADER_PATH(cf_search,ifelse([$6],,[$3],[$6]))
1261 for cf_cv_header_path_$3 in $cf_search
1263 if test -d "$cf_cv_header_path_$3" ; then
1264 CF_VERBOSE(... testing $cf_cv_header_path_$3)
1265 CPPFLAGS="$cf_save_CPPFLAGS"
1266 CF_APPEND_TEXT(CPPFLAGS,-I$cf_cv_header_path_$3)
1267 AC_TRY_COMPILE([$1],[$2],[
1268 CF_VERBOSE(... found $3 headers in $cf_cv_header_path_$3)
1269 cf_cv_find_linkage_$3=maybe
1270 cf_test_CPPFLAGS="$CPPFLAGS"
1272 CPPFLAGS="$cf_save_CPPFLAGS"
1277 if test "$cf_cv_find_linkage_$3" = maybe ; then
1279 CF_MSG_LOG([Searching for $3 library in [FIND_LINKAGE]($3,$6)])
1281 cf_save_LIBS="$LIBS"
1282 cf_save_LDFLAGS="$LDFLAGS"
1285 CPPFLAGS="$cf_test_CPPFLAGS"
1286 LIBS="-l$3 $7 $cf_save_LIBS"
1287 AC_TRY_LINK([$1],[$2],[
1288 CF_VERBOSE(... found $3 library in system)
1289 cf_cv_find_linkage_$3=yes])
1290 CPPFLAGS="$cf_save_CPPFLAGS"
1291 LIBS="$cf_save_LIBS"
1294 if test "$cf_cv_find_linkage_$3" != yes ; then
1295 CF_LIBRARY_PATH(cf_search,$3)
1296 for cf_cv_library_path_$3 in $cf_search
1298 if test -d "$cf_cv_library_path_$3" ; then
1299 CF_VERBOSE(... testing $cf_cv_library_path_$3)
1300 CPPFLAGS="$cf_test_CPPFLAGS"
1301 LIBS="-l$3 $7 $cf_save_LIBS"
1302 LDFLAGS="$cf_save_LDFLAGS -L$cf_cv_library_path_$3"
1303 AC_TRY_LINK([$1],[$2],[
1304 CF_VERBOSE(... found $3 library in $cf_cv_library_path_$3)
1305 cf_cv_find_linkage_$3=yes
1306 cf_cv_library_file_$3="-l$3"
1308 CPPFLAGS="$cf_save_CPPFLAGS"
1309 LIBS="$cf_save_LIBS"
1310 LDFLAGS="$cf_save_LDFLAGS"
1314 CPPFLAGS="$cf_save_CPPFLAGS"
1315 LDFLAGS="$cf_save_LDFLAGS"
1319 cf_cv_find_linkage_$3=no
1324 LIBS="$cf_save_LIBS"
1326 if test "$cf_cv_find_linkage_$3" = yes ; then
1328 CF_ADD_INCDIR($cf_cv_header_path_$3)
1329 CF_ADD_LIBDIR($cf_cv_library_path_$3)
1333 ifelse([$5],,AC_MSG_WARN(Cannot find $3 library),[$5])
1336 dnl ---------------------------------------------------------------------------
1337 dnl CF_FIXUP_ADAFLAGS version: 2 updated: 2015/04/17 21:13:04
1338 dnl -----------------
1339 dnl make ADAFLAGS consistent with CFLAGS
1340 AC_DEFUN([CF_FIXUP_ADAFLAGS],[
1341 AC_MSG_CHECKING(optimization options for ADAFLAGS)
1349 cf_O_flag=`echo "$CFLAGS" |sed -e 's/^.*-O/-O/' -e 's/[[ ]].*//'`
1350 CF_ADD_ADAFLAGS($cf_O_flag)
1353 AC_MSG_RESULT($ADAFLAGS)
1355 dnl ---------------------------------------------------------------------------
1356 dnl CF_FIX_WARNINGS version: 4 updated: 2021/12/16 18:22:31
1358 dnl Warning flags do not belong in CFLAGS, CPPFLAGS, etc. Any of gcc's
1359 dnl "-Werror" flags can interfere with configure-checks. Those go into
1362 dnl $1 = variable name to repair
1363 define([CF_FIX_WARNINGS],[
1364 if test "$GCC" = yes || test "$GXX" = yes
1369 for cf_temp_scan in [$]$1
1371 case "x$cf_temp_scan" in
1373 CF_APPEND_TEXT(cf_temp_flags,$cf_temp_scan)
1376 CF_APPEND_TEXT(EXTRA_CFLAGS,$cf_temp_scan)
1379 CF_APPEND_TEXT(cf_temp_flags,$cf_temp_scan)
1383 if test "x[$]$1" != "x$cf_temp_flags"
1385 CF_VERBOSE(repairing $1: [$]$1)
1387 CF_VERBOSE(... fixed [$]$1)
1388 CF_VERBOSE(... extra $EXTRA_CFLAGS)
1393 AC_SUBST(EXTRA_CFLAGS)
1395 dnl ---------------------------------------------------------------------------
1396 dnl CF_FUNC_GETTIME version: 2 updated: 2023/02/25 08:45:56
1398 dnl Check for gettimeofday or clock_gettime. In 2023, the former is still more
1399 dnl widely supported, but "deprecated" (2008), so we will use the latter if it
1400 dnl is available, to reduce compiler warnings.
1401 AC_DEFUN([CF_FUNC_GETTIME],[
1402 AC_CACHE_CHECK(for clock_gettime,cf_cv_func_clock_gettime,[
1403 AC_TRY_LINK([#include <time.h>],
1404 [struct timespec ts;
1405 int rc = clock_gettime(CLOCK_REALTIME, &ts); (void) rc; (void)ts],
1406 [cf_cv_func_clock_gettime=yes],
1407 [cf_cv_func_clock_gettime=no])
1410 if test "$cf_cv_func_clock_gettime" = yes
1412 AC_DEFINE(HAVE_CLOCK_GETTIME,1,[Define to 1 if we have clock_gettime function])
1414 AC_CHECK_FUNC(gettimeofday,
1415 AC_DEFINE(HAVE_GETTIMEOFDAY,1,[Define to 1 if we have gettimeofday function]),[
1417 AC_CHECK_LIB(bsd, gettimeofday,
1418 AC_DEFINE(HAVE_GETTIMEOFDAY,1,[Define to 1 if we have gettimeofday function])
1419 CF_ADD_LIB(bsd))])dnl CLIX: bzero, select, gettimeofday
1422 dnl ---------------------------------------------------------------------------
1423 dnl CF_GCC_ATTRIBUTES version: 24 updated: 2021/03/20 12:00:25
1424 dnl -----------------
1425 dnl Test for availability of useful gcc __attribute__ directives to quiet
1426 dnl compiler warnings. Though useful, not all are supported -- and contrary
1427 dnl to documentation, unrecognized directives cause older compilers to barf.
1428 AC_DEFUN([CF_GCC_ATTRIBUTES],
1429 [AC_REQUIRE([AC_PROG_FGREP])dnl
1430 AC_REQUIRE([CF_C11_NORETURN])dnl
1432 if test "$GCC" = yes || test "$GXX" = yes
1434 cat > conftest.i <<EOF
1436 #define GCC_PRINTF 0
1441 #ifndef GCC_NORETURN
1442 #define GCC_NORETURN /* nothing */
1445 #define GCC_UNUSED /* nothing */
1448 if test "$GCC" = yes
1450 AC_CHECKING([for $CC __attribute__ directives])
1451 cat > "conftest.$ac_ext" <<EOF
1452 #line __oline__ "${as_me:-configure}"
1454 #include "confdefs.h"
1455 #include "conftest.h"
1456 #include "conftest.i"
1458 #define GCC_PRINTFLIKE(fmt,var) __attribute__((format(printf,fmt,var)))
1460 #define GCC_PRINTFLIKE(fmt,var) /*nothing*/
1463 #define GCC_SCANFLIKE(fmt,var) __attribute__((format(scanf,fmt,var)))
1465 #define GCC_SCANFLIKE(fmt,var) /*nothing*/
1467 extern void wow(char *,...) GCC_SCANFLIKE(1,2);
1468 extern GCC_NORETURN void oops(char *,...) GCC_PRINTFLIKE(1,2);
1469 extern GCC_NORETURN void foo(void);
1470 int main(int argc GCC_UNUSED, char *argv[[]] GCC_UNUSED) { (void)argc; (void)argv; return 0; }
1472 cf_printf_attribute=no
1473 cf_scanf_attribute=no
1474 for cf_attribute in scanf printf unused noreturn
1476 CF_UPPER(cf_ATTRIBUTE,$cf_attribute)
1477 cf_directive="__attribute__(($cf_attribute))"
1478 echo "checking for $CC $cf_directive" 1>&AC_FD_CC
1480 case "$cf_attribute" in
1482 cf_printf_attribute=yes
1483 cat >conftest.h <<EOF
1484 #define GCC_$cf_ATTRIBUTE 1
1488 cf_scanf_attribute=yes
1489 cat >conftest.h <<EOF
1490 #define GCC_$cf_ATTRIBUTE 1
1494 cat >conftest.h <<EOF
1495 #define GCC_$cf_ATTRIBUTE $cf_directive
1500 if AC_TRY_EVAL(ac_compile); then
1501 test -n "$verbose" && AC_MSG_RESULT(... $cf_attribute)
1502 cat conftest.h >>confdefs.h
1503 case "$cf_attribute" in
1505 AC_DEFINE_UNQUOTED(GCC_NORETURN,$cf_directive,[Define to noreturn-attribute for gcc])
1508 cf_value='/* nothing */'
1509 if test "$cf_printf_attribute" != no ; then
1510 cf_value='__attribute__((format(printf,fmt,var)))'
1511 AC_DEFINE(GCC_PRINTF,1,[Define to 1 if the compiler supports gcc-like printf attribute.])
1513 AC_DEFINE_UNQUOTED(GCC_PRINTFLIKE(fmt,var),$cf_value,[Define to printf-attribute for gcc])
1516 cf_value='/* nothing */'
1517 if test "$cf_scanf_attribute" != no ; then
1518 cf_value='__attribute__((format(scanf,fmt,var)))'
1519 AC_DEFINE(GCC_SCANF,1,[Define to 1 if the compiler supports gcc-like scanf attribute.])
1521 AC_DEFINE_UNQUOTED(GCC_SCANFLIKE(fmt,var),$cf_value,[Define to sscanf-attribute for gcc])
1524 AC_DEFINE_UNQUOTED(GCC_UNUSED,$cf_directive,[Define to unused-attribute for gcc])
1530 ${FGREP-fgrep} define conftest.i >>confdefs.h
1535 dnl ---------------------------------------------------------------------------
1536 dnl CF_GCC_VERSION version: 9 updated: 2023/03/05 14:30:13
1538 dnl Find version of gcc, and (because icc/clang pretend to be gcc without being
1539 dnl compatible), attempt to determine if icc/clang is actually used.
1540 AC_DEFUN([CF_GCC_VERSION],[
1541 AC_REQUIRE([AC_PROG_CC])
1543 if test "$GCC" = yes ; then
1544 AC_MSG_CHECKING(version of $CC)
1545 GCC_VERSION="`${CC} --version 2>/dev/null | sed -e '2,$d' -e 's/^[[^(]]*([[^)]][[^)]]*) //' -e 's/^[[^0-9.]]*//' -e 's/[[^0-9.]].*//'`"
1546 test -z "$GCC_VERSION" && GCC_VERSION=unknown
1547 AC_MSG_RESULT($GCC_VERSION)
1549 CF_INTEL_COMPILER(GCC,INTEL_COMPILER,CFLAGS)
1550 CF_CLANG_COMPILER(GCC,CLANG_COMPILER,CFLAGS)
1552 dnl ---------------------------------------------------------------------------
1553 dnl CF_GCC_WARNINGS version: 41 updated: 2021/01/01 16:53:59
1555 dnl Check if the compiler supports useful warning options. There's a few that
1556 dnl we don't use, simply because they're too noisy:
1558 dnl -Wconversion (useful in older versions of gcc, but not in gcc 2.7.x)
1559 dnl -Winline (usually not worthwhile)
1560 dnl -Wredundant-decls (system headers make this too noisy)
1561 dnl -Wtraditional (combines too many unrelated messages, only a few useful)
1562 dnl -Wwrite-strings (too noisy, but should review occasionally). This
1563 dnl is enabled for ncurses using "--enable-const".
1567 dnl $1 is an optional list of gcc warning flags that a particular
1568 dnl application might want to use, e.g., "no-unused" for
1571 dnl If $with_ext_const is "yes", add a check for -Wwrite-strings
1573 AC_DEFUN([CF_GCC_WARNINGS],
1575 AC_REQUIRE([CF_GCC_VERSION])
1576 if test "x$have_x" = xyes; then CF_CONST_X_STRING fi
1577 cat > "conftest.$ac_ext" <<EOF
1578 #line __oline__ "${as_me:-configure}"
1579 int main(int argc, char *argv[[]]) { return (argv[[argc-1]] == 0) ; }
1581 if test "$INTEL_COMPILER" = yes
1583 # The "-wdXXX" options suppress warnings:
1584 # remark #1419: external declaration in primary source file
1585 # remark #1683: explicit conversion of a 64-bit integral type to a smaller integral type (potential portability problem)
1586 # remark #1684: conversion from pointer to same-sized integral type (potential portability problem)
1587 # remark #193: zero used for undefined preprocessing identifier
1588 # remark #593: variable "curs_sb_left_arrow" was set but never used
1589 # remark #810: conversion from "int" to "Dimension={unsigned short}" may lose significant bits
1590 # remark #869: parameter "tw" was never referenced
1591 # remark #981: operands are evaluated in unspecified order
1592 # warning #279: controlling expression is constant
1594 AC_CHECKING([for $CC warning options])
1595 cf_save_CFLAGS="$CFLAGS"
1596 EXTRA_CFLAGS="$EXTRA_CFLAGS -Wall"
1608 CFLAGS="$cf_save_CFLAGS $EXTRA_CFLAGS -$cf_opt"
1609 if AC_TRY_EVAL(ac_compile); then
1610 test -n "$verbose" && AC_MSG_RESULT(... -$cf_opt)
1611 EXTRA_CFLAGS="$EXTRA_CFLAGS -$cf_opt"
1614 CFLAGS="$cf_save_CFLAGS"
1615 elif test "$GCC" = yes && test "$GCC_VERSION" != "unknown"
1617 AC_CHECKING([for $CC warning options])
1618 cf_save_CFLAGS="$CFLAGS"
1620 test "$with_ext_const" = yes && cf_warn_CONST="Wwrite-strings"
1621 cf_gcc_warnings="Wignored-qualifiers Wlogical-op Wvarargs"
1622 test "x$CLANG_COMPILER" = xyes && cf_gcc_warnings=
1623 for cf_opt in W Wall \
1624 Wbad-function-cast \
1627 Wdeclaration-after-statement \
1630 Wmissing-declarations \
1631 Wmissing-prototypes \
1635 Wstrict-prototypes \
1636 Wundef Wno-inline $cf_gcc_warnings $cf_warn_CONST $1
1638 CFLAGS="$cf_save_CFLAGS $EXTRA_CFLAGS -$cf_opt"
1639 if AC_TRY_EVAL(ac_compile); then
1640 test -n "$verbose" && AC_MSG_RESULT(... -$cf_opt)
1643 case "$GCC_VERSION" in
1645 CF_VERBOSE(feature is broken in gcc $GCC_VERSION)
1650 case "$GCC_VERSION" in
1652 CF_VERBOSE(feature is broken in gcc $GCC_VERSION)
1657 EXTRA_CFLAGS="$EXTRA_CFLAGS -$cf_opt"
1660 CFLAGS="$cf_save_CFLAGS"
1664 AC_SUBST(EXTRA_CFLAGS)
1666 dnl ---------------------------------------------------------------------------
1667 dnl CF_GNATPREP_OPT_T version: 1 updated: 2014/08/02 18:37:25
1668 dnl -----------------
1669 AC_DEFUN([CF_GNATPREP_OPT_T],[
1670 AC_CACHE_CHECK(if GNATPREP supports -T option,cf_cv_gnatprep_opt_t,[
1671 cf_cv_gnatprep_opt_t=no
1672 gnatprep -T 2>/dev/null >/dev/null && cf_cv_gnatprep_opt_t=yes
1674 test "$cf_cv_gnatprep_opt_t" = yes && GNATPREP_OPTS="-T $GNATPREP_OPTS"
1675 AC_SUBST(GNATPREP_OPTS)
1677 dnl ---------------------------------------------------------------------------
1678 dnl CF_GNAT_GENERICS version: 7 updated: 2021/01/01 13:31:04
1679 dnl ----------------
1680 AC_DEFUN([CF_GNAT_GENERICS],
1682 AC_REQUIRE([CF_GNAT_VERSION])
1684 AC_MSG_CHECKING(if GNAT supports generics)
1685 case "$cf_cv_gnat_version" in
1686 (3.1[[1-9]]*|3.[[2-9]]*|[[4-9]].*|[[1-9]][[0-9]].[[0-9]]*|20[[0-9]][[0-9]])
1687 cf_gnat_generics=yes
1693 AC_MSG_RESULT($cf_gnat_generics)
1695 if test "$cf_gnat_generics" = yes
1697 cf_compile_generics=generics
1698 cf_generic_objects="\${GENOBJS}"
1700 cf_compile_generics=
1704 AC_SUBST(cf_compile_generics)
1705 AC_SUBST(cf_generic_objects)
1707 dnl ---------------------------------------------------------------------------
1708 dnl CF_GNAT_PROJECTS version: 13 updated: 2021/01/02 17:09:14
1709 dnl ----------------
1710 dnl GNAT projects are configured with ".gpr" project files.
1711 dnl GNAT libraries are a further development, using the project feature.
1712 AC_DEFUN([CF_GNAT_PROJECTS],
1714 AC_REQUIRE([CF_GNAT_VERSION])
1715 AC_REQUIRE([CF_DISABLE_GNAT_PROJECTS])
1717 cf_gnat_libraries=no
1720 if test "$enable_gnat_projects" != no ; then
1721 AC_MSG_CHECKING(if GNAT supports project files)
1722 case "$cf_cv_gnat_version" in
1726 case "$cf_cv_system_name" in
1730 rm -rf ./conftest* ./*~conftest*
1731 if mkdir conftest.src conftest.bin conftest.lib
1734 rm -rf ./conftest* ./*~conftest*
1735 cat >>library.gpr <<CF_EOF
1737 Kind := External ("LIB_KIND");
1738 for Library_Name use "ConfTest";
1739 for Object_Dir use ".";
1740 for Library_ALI_Dir use External("LIBRARY_DIR");
1741 for Library_Version use External ("SONAME");
1742 for Library_Kind use Kind;
1743 for Library_Dir use External("BUILD_DIR");
1744 Source_Dir := External ("SOURCE_DIR");
1745 for Source_Dirs use (Source_Dir);
1748 cat >>confpackage.ads <<CF_EOF
1749 package ConfPackage is
1753 cat >>confpackage.adb <<CF_EOF
1755 package body ConfPackage is
1756 procedure conftest is
1758 Text_IO.Put ("Hello World");
1763 if ( "$cf_ada_make" $ADAFLAGS \
1765 -XBUILD_DIR="`cd ../conftest.bin;pwd`" \
1766 -XLIBRARY_DIR="`cd ../conftest.lib;pwd`" \
1767 -XSOURCE_DIR="`pwd`" \
1768 -XSONAME=libConfTest.so.1 \
1769 -XLIB_KIND=static 1>&AC_FD_CC 2>&1 ) ; then
1770 cf_gnat_projects=yes
1774 if test -f conftest.lib/confpackage.ali
1776 cf_gnat_libraries=yes
1778 rm -rf ./conftest* ./*~conftest*
1783 AC_MSG_RESULT($cf_gnat_projects)
1784 fi # enable_gnat_projects
1786 if test "$cf_gnat_projects" = yes
1788 AC_MSG_CHECKING(if GNAT supports libraries)
1789 AC_MSG_RESULT($cf_gnat_libraries)
1792 USE_OLD_MAKERULES=""
1793 USE_GNAT_PROJECTS="#"
1794 USE_GNAT_MAKE_GPR="#"
1795 USE_GNAT_GPRBUILD="#"
1797 if test "$cf_gnat_projects" = yes
1799 USE_OLD_MAKERULES="#"
1800 USE_GNAT_PROJECTS=""
1801 if test "$cf_cv_VERSION_GPRBUILD" != no
1803 USE_GNAT_GPRBUILD=""
1804 elif test "$cf_cv_VERSION_GNATMAKE" != no
1806 USE_GNAT_MAKE_GPR=""
1808 AC_MSG_WARN(use old makefile rules since tools are missing)
1812 if test "$cf_gnat_libraries" = yes
1814 USE_GNAT_LIBRARIES=""
1816 USE_GNAT_LIBRARIES="#"
1819 AC_SUBST(USE_OLD_MAKERULES)
1820 AC_SUBST(USE_GNAT_PROJECTS)
1821 AC_SUBST(USE_GNAT_LIBRARIES)
1822 AC_SUBST(USE_GNAT_MAKE_GPR)
1823 AC_SUBST(USE_GNAT_GPRBUILD)
1825 dnl ---------------------------------------------------------------------------
1826 dnl CF_GNAT_SIGINT version: 2 updated: 2021/01/01 13:31:04
1828 dnl Check if gnat supports SIGINT, and presumably tasking. For the latter, it
1829 dnl is noted that gnat may compile a tasking unit even for configurations which
1830 dnl fail at runtime.
1831 AC_DEFUN([CF_GNAT_SIGINT],[
1832 AC_CACHE_CHECK(if GNAT supports SIGINT,cf_cv_gnat_sigint,[
1833 CF_GNAT_TRY_LINK([with Ada.Interrupts.Names;
1837 pragma Warnings (Off); -- the next pragma exists since 3.11p
1838 pragma Unreserve_All_Interrupts;
1839 pragma Warnings (On);
1841 protected Process is
1843 function Continue return Boolean;
1844 pragma Attach_Handler (Stop, Ada.Interrupts.Names.SIGINT);
1846 Done : Boolean := False;
1850 [package body ConfTest is
1851 protected body Process is
1856 function Continue return Boolean is
1862 [cf_cv_gnat_sigint=yes],
1863 [cf_cv_gnat_sigint=no])])
1865 if test "$cf_cv_gnat_sigint" = yes ; then
1870 AC_SUBST(USE_GNAT_SIGINT)
1872 dnl ---------------------------------------------------------------------------
1873 dnl CF_GNAT_TRY_LINK version: 4 updated: 2021/01/01 13:31:04
1874 dnl ----------------
1875 dnl Verify that a test program compiles/links with GNAT.
1876 dnl $cf_ada_make is set to the program that compiles/links
1877 dnl $ADAFLAGS may be set to the GNAT flags.
1879 dnl $1 is the text of the spec
1880 dnl $2 is the text of the body
1881 dnl $3 is the shell command to execute if successful
1882 dnl $4 is the shell command to execute if not successful
1883 AC_DEFUN([CF_GNAT_TRY_LINK],
1885 rm -rf ./conftest* ./*~conftest*
1886 cat >>conftest.ads <<CF_EOF
1889 cat >>conftest.adb <<CF_EOF
1892 if ( "$cf_ada_make" $ADAFLAGS conftest 1>&AC_FD_CC 2>&1 ) ; then
1893 ifelse($3,, :,[ $3])
1897 rm -rf ./conftest* ./*~conftest*
1899 dnl ---------------------------------------------------------------------------
1900 dnl CF_GNAT_TRY_RUN version: 6 updated: 2021/01/01 13:31:04
1902 dnl Verify that a test program compiles and runs with GNAT
1903 dnl $cf_ada_make is set to the program that compiles/links
1904 dnl $ADAFLAGS may be set to the GNAT flags.
1906 dnl $1 is the text of the spec
1907 dnl $2 is the text of the body
1908 dnl $3 is the shell command to execute if successful
1909 dnl $4 is the shell command to execute if not successful
1910 AC_DEFUN([CF_GNAT_TRY_RUN],
1912 rm -rf ./conftest* ./*~conftest*
1913 cat >>conftest.ads <<CF_EOF
1916 cat >>conftest.adb <<CF_EOF
1919 if ( "$cf_ada_make" $ADAFLAGS conftest 1>&AC_FD_CC 2>&1 ) ; then
1920 if ( ./conftest 1>&AC_FD_CC 2>&1 ) ; then
1921 ifelse($3,, :,[ $3])
1928 rm -rf ./conftest* ./*~conftest*
1930 dnl ---------------------------------------------------------------------------
1931 dnl CF_GNAT_VERSION version: 22 updated: 2019/12/31 08:53:54
1933 dnl $1 = cache variable to update
1934 dnl $2 = program name
1935 dnl Verify version of GNAT or related tool
1936 AC_DEFUN([CF_GNAT_VERSION],
1938 AC_CACHE_CHECK(for ifelse($2,,gnat,$2) version, cf_cv_gnat_version,[
1939 cf_cv_gnat_version=`ifelse($2,,${cf_ada_make:-gnatmake},$2) --version 2>&1 | \
1940 grep '[[0-9]].[[0-9]][[0-9]]*' |\
1941 sed -e '2,$d' -e 's/[[^0-9 \.]]//g' -e 's/^[[ ]]*//' -e 's/ .*//'`
1943 test -z "$cf_cv_gnat_version" && cf_cv_gnat_version=no
1944 ifelse($1,,,[eval $1=$cf_cv_gnat_version; unset cf_cv_gnat_version])
1946 dnl ---------------------------------------------------------------------------
1947 dnl CF_GNU_SOURCE version: 10 updated: 2018/12/10 20:09:41
1949 dnl Check if we must define _GNU_SOURCE to get a reasonable value for
1950 dnl _XOPEN_SOURCE, upon which many POSIX definitions depend. This is a defect
1951 dnl (or misfeature) of glibc2, which breaks portability of many applications,
1952 dnl since it is interwoven with GNU extensions.
1954 dnl Well, yes we could work around it...
1957 dnl $1 is the nominal value for _XOPEN_SOURCE
1958 AC_DEFUN([CF_GNU_SOURCE],
1960 cf_gnu_xopen_source=ifelse($1,,500,$1)
1962 AC_CACHE_CHECK(if this is the GNU C library,cf_cv_gnu_library,[
1963 AC_TRY_COMPILE([#include <sys/types.h>],[
1964 #if __GLIBC__ > 0 && __GLIBC_MINOR__ >= 0
1966 #elif __NEWLIB__ > 0 && __NEWLIB_MINOR__ >= 0
1969 # error not GNU C library
1971 [cf_cv_gnu_library=yes],
1972 [cf_cv_gnu_library=no])
1975 if test x$cf_cv_gnu_library = xyes; then
1977 # With glibc 2.19 (13 years after this check was begun), _DEFAULT_SOURCE
1978 # was changed to help a little. newlib incorporated the change about 4
1980 AC_CACHE_CHECK(if _DEFAULT_SOURCE can be used as a basis,cf_cv_gnu_library_219,[
1982 CF_APPEND_TEXT(CPPFLAGS,-D_DEFAULT_SOURCE)
1983 AC_TRY_COMPILE([#include <sys/types.h>],[
1984 #if (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 19) || (__GLIBC__ > 2)
1986 #elif (__NEWLIB__ == 2 && __NEWLIB_MINOR__ >= 4) || (__GLIBC__ > 3)
1989 # error GNU C library __GLIBC__.__GLIBC_MINOR__ is too old
1991 [cf_cv_gnu_library_219=yes],
1992 [cf_cv_gnu_library_219=no])
1996 if test "x$cf_cv_gnu_library_219" = xyes; then
1998 AC_CACHE_CHECK(if _XOPEN_SOURCE=$cf_gnu_xopen_source works with _DEFAULT_SOURCE,cf_cv_gnu_dftsrc_219,[
1999 CF_ADD_CFLAGS(-D_DEFAULT_SOURCE -D_XOPEN_SOURCE=$cf_gnu_xopen_source)
2002 #include <sys/types.h>
2004 #if (_XOPEN_SOURCE >= $cf_gnu_xopen_source) && (MB_LEN_MAX > 1)
2007 # error GNU C library is too old
2009 [cf_cv_gnu_dftsrc_219=yes],
2010 [cf_cv_gnu_dftsrc_219=no])
2012 test "x$cf_cv_gnu_dftsrc_219" = "xyes" || CPPFLAGS="$cf_save"
2014 cf_cv_gnu_dftsrc_219=maybe
2017 if test "x$cf_cv_gnu_dftsrc_219" != xyes; then
2019 AC_CACHE_CHECK(if we must define _GNU_SOURCE,cf_cv_gnu_source,[
2020 AC_TRY_COMPILE([#include <sys/types.h>],[
2021 #ifndef _XOPEN_SOURCE
2022 #error expected _XOPEN_SOURCE to be defined
2024 [cf_cv_gnu_source=no],
2025 [cf_save="$CPPFLAGS"
2026 CF_ADD_CFLAGS(-D_GNU_SOURCE)
2027 AC_TRY_COMPILE([#include <sys/types.h>],[
2028 #ifdef _XOPEN_SOURCE
2029 #error expected _XOPEN_SOURCE to be undefined
2031 [cf_cv_gnu_source=no],
2032 [cf_cv_gnu_source=yes])
2037 if test "$cf_cv_gnu_source" = yes
2039 AC_CACHE_CHECK(if we should also define _DEFAULT_SOURCE,cf_cv_default_source,[
2040 CF_APPEND_TEXT(CPPFLAGS,-D_GNU_SOURCE)
2041 AC_TRY_COMPILE([#include <sys/types.h>],[
2042 #ifdef _DEFAULT_SOURCE
2043 #error expected _DEFAULT_SOURCE to be undefined
2045 [cf_cv_default_source=no],
2046 [cf_cv_default_source=yes])
2048 if test "$cf_cv_default_source" = yes
2050 CF_APPEND_TEXT(CPPFLAGS,-D_DEFAULT_SOURCE)
2057 dnl ---------------------------------------------------------------------------
2058 dnl CF_HEADER_PATH version: 15 updated: 2021/01/01 13:31:04
2060 dnl Construct a search-list of directories for a nonstandard header-file
2063 dnl $1 = the variable to return as result
2064 dnl $2 = the package name
2065 AC_DEFUN([CF_HEADER_PATH],
2069 # collect the current set of include-directories from compiler flags
2070 cf_header_path_list=""
2071 if test -n "${CFLAGS}${CPPFLAGS}" ; then
2072 for cf_header_path in $CPPFLAGS $CFLAGS
2074 case "$cf_header_path" in
2076 cf_header_path=`echo ".$cf_header_path" |sed -e 's/^...//' -e 's,/include$,,'`
2077 CF_ADD_SUBDIR_PATH($1,$2,include,$cf_header_path,NONE)
2078 cf_header_path_list="$cf_header_path_list [$]$1"
2084 # add the variations for the package we are looking for
2085 CF_SUBDIR_PATH($1,$2,include)
2087 test "$includedir" != NONE && \
2088 test "$includedir" != "/usr/include" && \
2089 test -d "$includedir" && {
2090 test -d "$includedir" && $1="[$]$1 $includedir"
2091 test -d "$includedir/$2" && $1="[$]$1 $includedir/$2"
2094 test "$oldincludedir" != NONE && \
2095 test "$oldincludedir" != "/usr/include" && \
2096 test -d "$oldincludedir" && {
2097 test -d "$oldincludedir" && $1="[$]$1 $oldincludedir"
2098 test -d "$oldincludedir/$2" && $1="[$]$1 $oldincludedir/$2"
2101 $1="[$]$1 $cf_header_path_list"
2103 dnl ---------------------------------------------------------------------------
2104 dnl CF_HELP_MESSAGE version: 4 updated: 2019/12/31 08:53:54
2106 dnl Insert text into the help-message, for readability, from AC_ARG_WITH.
2107 AC_DEFUN([CF_HELP_MESSAGE],
2108 [CF_ACVERSION_CHECK(2.53,[],[
2109 AC_DIVERT_HELP($1)])dnl
2111 dnl ---------------------------------------------------------------------------
2112 dnl CF_INCLUDE_DIRS version: 10 updated: 2014/09/19 20:58:42
2114 dnl Construct the list of include-options according to whether we're building
2115 dnl in the source directory or using '--srcdir=DIR' option.
2116 AC_DEFUN([CF_INCLUDE_DIRS],
2118 if test "$srcdir" != "."; then
2119 CPPFLAGS="-I\${srcdir}/../include $CPPFLAGS"
2121 CPPFLAGS="-I../include $CPPFLAGS"
2122 if test "$srcdir" != "."; then
2123 CPPFLAGS="-I\${srcdir} $CPPFLAGS"
2125 CPPFLAGS="-I. $CPPFLAGS"
2128 dnl ---------------------------------------------------------------------------
2129 dnl CF_INSTALL_OPTS version: 3 updated: 2023/06/03 15:17:30
2131 dnl prompt for/fill-in useful install-program options
2132 AC_DEFUN([CF_INSTALL_OPTS],
2137 CF_INSTALL_OPT_STRIP_PROG
2139 dnl ---------------------------------------------------------------------------
2140 dnl CF_INSTALL_OPT_O version: 3 updated: 2020/12/31 20:19:42
2141 dnl ----------------
2142 dnl Almost all "install" programs default to the current user's ownership.
2143 dnl Almost - MINIX is an exception.
2144 AC_DEFUN([CF_INSTALL_OPT_O],
2146 AC_MSG_CHECKING(if install needs to be told about ownership)
2147 case `$ac_config_guess` in
2156 AC_MSG_RESULT($with_install_o)
2157 if test "x$with_install_o" = xyes
2159 INSTALL_OPT_O="`id root|sed -e 's/uid=[[0-9]]*(/ -o /' -e 's/gid=[[0-9]]*(/ -g /' -e 's/ [[^=[:space:]]][[^=[:space:]]]*=.*/ /' -e 's/)//g'`"
2164 AC_SUBST(INSTALL_OPT_O)
2166 dnl ---------------------------------------------------------------------------
2167 dnl CF_INSTALL_OPT_P version: 3 updated: 2021/01/01 13:31:04
2168 dnl ----------------
2169 dnl Some install-programs accept a "-p" option to preserve file modification
2170 dnl timestamps. That can be useful as an install option, as well as a way to
2171 dnl avoid the need for ranlib after copying a static archive.
2172 AC_DEFUN([CF_INSTALL_OPT_P],
2174 : "${INSTALL:=install}"
2175 AC_CACHE_CHECK(if install accepts -p option, cf_cv_install_p,[
2180 if $INSTALL -p conftest.in conftest.out 2>/dev/null
2182 if test -f conftest.out/conftest.in
2184 test conftest.in -nt conftest.out/conftest.in 2>conftest.err && \
2185 test conftest.out/conftest.in -nt conftest.in 2>conftest.err
2186 if test -s conftest.err
2201 dnl ---------------------------------------------------------------------------
2202 dnl CF_INSTALL_OPT_S version: 3 updated: 2021/01/05 19:23:48
2203 dnl ----------------
2204 dnl By default, we should strip executables which are installed, but leave the
2205 dnl ability to suppress that for unit-testing.
2206 AC_DEFUN([CF_INSTALL_OPT_S],
2208 AC_MSG_CHECKING(if you want to install stripped executables)
2209 CF_ARG_DISABLE(stripping,
2210 [ --disable-stripping do not strip (debug info) installed executables],
2211 [enable_stripping=no],
2212 [enable_stripping=yes])
2213 AC_MSG_RESULT($enable_stripping)
2215 if test "$enable_stripping" = yes
2221 AC_SUBST(INSTALL_OPT_S)
2223 dnl ---------------------------------------------------------------------------
2224 dnl CF_INSTALL_OPT_STRIP_PROG version: 1 updated: 2023/06/03 15:17:30
2225 dnl -------------------------
2226 dnl Provide an option for overriding the strip program used in install "-s"
2228 dnl coreutils install provides a --strip-program option
2229 dnl FreeBSD uses STRIPBIN environment variable, while NetBSD and OpenBSD use
2230 dnl STRIP environment variable. Other versions of install do not support this.
2231 AC_DEFUN([CF_INSTALL_OPT_STRIP_PROG],
2233 AC_REQUIRE([CF_INSTALL_OPT_S])
2234 if test -n "$INSTALL_OPT_S"
2236 AC_MSG_CHECKING(if you want to specify strip-program)
2237 AC_ARG_WITH(strip-program,
2238 [ --with-strip-program=XX specify program to use when stripping in install],
2239 [with_strip_program=$withval],
2240 [with_strip_program=no])
2241 AC_MSG_RESULT($with_strip_program)
2242 if test "$with_strip_program" != no
2244 AC_MSG_CHECKING(if strip-program is supported with this installer)
2245 cf_install_program=`echo "$INSTALL" | sed -e 's%[[ ]]*[[ ]]-.%%'`
2246 check_install_strip=no
2247 if test -f "$cf_install_program"
2249 check_install_version=`"$cf_install_program" --version 2>/dev/null | head -n 1 | grep coreutils`
2250 if test -n "$check_install_version"
2252 check_install_strip="option"
2254 for check_strip_variable in STRIPBIN STRIP
2256 if strings "$cf_install_program" | grep "^$check_strip_variable[$]" >/dev/null
2258 check_install_strip="environ"
2264 AC_MSG_RESULT($check_install_strip)
2265 case "$check_install_strip" in
2267 AC_MSG_WARN($cf_install_program does not support strip program option)
2268 with_strip_program=no
2271 cat >install.tmp <<-CF_EOF
2273 STRIPBIN="$with_strip_program" \\
2274 STRIP="$with_strip_program" \\
2277 INSTALL="`pwd`/install.tmp"
2279 CF_VERBOSE(created $INSTALL)
2282 INSTALL_OPT_S="$INSTALL_OPT_S --strip-program=\"$with_strip_program\""
2287 AC_SUBST(INSTALL_OPT_S)
2289 dnl ---------------------------------------------------------------------------
2290 dnl CF_INTEL_COMPILER version: 9 updated: 2023/02/18 17:41:25
2291 dnl -----------------
2292 dnl Check if the given compiler is really the Intel compiler for Linux. It
2293 dnl tries to imitate gcc, but does not return an error when it finds a mismatch
2294 dnl between prototypes, e.g., as exercised by CF_MISSING_CHECK.
2296 dnl This macro should be run "soon" after AC_PROG_CC or AC_PROG_CPLUSPLUS, to
2297 dnl ensure that it is not mistaken for gcc/g++. It is normally invoked from
2298 dnl the wrappers for gcc and g++ warnings.
2300 dnl $1 = GCC (default) or GXX
2301 dnl $2 = INTEL_COMPILER (default) or INTEL_CPLUSPLUS
2302 dnl $3 = CFLAGS (default) or CXXFLAGS
2303 AC_DEFUN([CF_INTEL_COMPILER],[
2304 AC_REQUIRE([AC_CANONICAL_HOST])
2305 ifelse([$2],,INTEL_COMPILER,[$2])=no
2307 if test "$ifelse([$1],,[$1],GCC)" = yes ; then
2310 AC_MSG_CHECKING(if this is really Intel ifelse([$1],GXX,C++,C) compiler)
2311 cf_save_CFLAGS="$ifelse([$3],,CFLAGS,[$3])"
2312 ifelse([$3],,CFLAGS,[$3])="$ifelse([$3],,CFLAGS,[$3]) -no-gcc"
2314 #ifdef __INTEL_COMPILER
2316 #error __INTEL_COMPILER is not defined
2318 ],[ifelse([$2],,INTEL_COMPILER,[$2])=yes
2319 cf_save_CFLAGS="$cf_save_CFLAGS -we147"
2321 ifelse([$3],,CFLAGS,[$3])="$cf_save_CFLAGS"
2322 AC_MSG_RESULT($ifelse([$2],,INTEL_COMPILER,[$2]))
2327 dnl ---------------------------------------------------------------------------
2328 dnl CF_LARGEFILE version: 12 updated: 2020/03/19 20:23:48
2330 dnl Add checks for large file support.
2331 AC_DEFUN([CF_LARGEFILE],[
2332 ifdef([AC_FUNC_FSEEKO],[
2334 if test "$enable_largefile" != no ; then
2337 # Normally we would collect these definitions in the config.h,
2338 # but (like _XOPEN_SOURCE), some environments rely on having these
2339 # defined before any of the system headers are included. Another
2340 # case comes up with C++, e.g., on AIX the compiler compiles the
2341 # header files by themselves before looking at the body files it is
2342 # told to compile. For ncurses, those header files do not include
2344 if test "$ac_cv_sys_large_files" != no
2346 CF_APPEND_TEXT(CPPFLAGS,-D_LARGE_FILES)
2348 if test "$ac_cv_sys_largefile_source" != no
2350 CF_APPEND_TEXT(CPPFLAGS,-D_LARGEFILE_SOURCE)
2352 if test "$ac_cv_sys_file_offset_bits" != no
2354 CF_APPEND_TEXT(CPPFLAGS,-D_FILE_OFFSET_BITS=$ac_cv_sys_file_offset_bits)
2357 AC_CACHE_CHECK(whether to use struct dirent64, cf_cv_struct_dirent64,[
2359 #pragma GCC diagnostic error "-Wincompatible-pointer-types"
2360 #include <sys/types.h>
2363 /* if transitional largefile support is setup, this is true */
2364 extern struct dirent64 * readdir(DIR *);
2365 struct dirent64 *x = readdir((DIR *)0);
2366 struct dirent *y = readdir((DIR *)0);
2370 [cf_cv_struct_dirent64=yes],
2371 [cf_cv_struct_dirent64=no])
2373 test "$cf_cv_struct_dirent64" = yes && AC_DEFINE(HAVE_STRUCT_DIRENT64,1,[Define to 1 if we have struct dirent64])
2377 dnl ---------------------------------------------------------------------------
2378 dnl CF_LD_RPATH_OPT version: 9 updated: 2021/01/01 13:31:04
2380 dnl For the given system and compiler, find the compiler flags to pass to the
2381 dnl loader to use the "rpath" feature.
2382 AC_DEFUN([CF_LD_RPATH_OPT],
2384 AC_REQUIRE([CF_CHECK_CACHE])
2387 if test "x$cf_cv_enable_rpath" != xno
2389 AC_MSG_CHECKING(for an rpath option)
2390 case "$cf_cv_system_name" in
2392 if test "$GCC" = yes; then
2393 LD_RPATH_OPT="-Wl,-rpath,"
2395 LD_RPATH_OPT="-rpath "
2398 (linux*|gnu*|k*bsd*-gnu|freebsd*)
2399 LD_RPATH_OPT="-Wl,-rpath,"
2401 (openbsd[[2-9]].*|mirbsd*)
2402 LD_RPATH_OPT="-Wl,-rpath,"
2405 LD_RPATH_OPT="-rpath "
2408 LD_RPATH_OPT="-Wl,-rpath,"
2411 LD_RPATH_OPT="-rpath "
2419 AC_MSG_RESULT($LD_RPATH_OPT)
2421 case "x$LD_RPATH_OPT" in
2423 AC_MSG_CHECKING(if we need a space after rpath option)
2424 cf_save_LIBS="$LIBS"
2425 CF_ADD_LIBS(${LD_RPATH_OPT}$libdir)
2426 AC_TRY_LINK(, , cf_rpath_space=no, cf_rpath_space=yes)
2427 LIBS="$cf_save_LIBS"
2428 AC_MSG_RESULT($cf_rpath_space)
2429 test "$cf_rpath_space" = yes && LD_RPATH_OPT="$LD_RPATH_OPT "
2434 dnl ---------------------------------------------------------------------------
2435 dnl CF_LIBRARY_PATH version: 11 updated: 2021/01/01 13:31:04
2437 dnl Construct a search-list of directories for a nonstandard library-file
2440 dnl $1 = the variable to return as result
2441 dnl $2 = the package name
2442 AC_DEFUN([CF_LIBRARY_PATH],
2445 cf_library_path_list=""
2446 if test -n "${LDFLAGS}${LIBS}" ; then
2447 for cf_library_path in $LDFLAGS $LIBS
2449 case "$cf_library_path" in
2451 cf_library_path=`echo ".$cf_library_path" |sed -e 's/^...//' -e 's,/lib$,,'`
2452 CF_ADD_SUBDIR_PATH($1,$2,lib,$cf_library_path,NONE)
2453 cf_library_path_list="$cf_library_path_list [$]$1"
2459 CF_SUBDIR_PATH($1,$2,lib)
2461 $1="$cf_library_path_list [$]$1"
2463 dnl ---------------------------------------------------------------------------
2464 dnl CF_LIB_PREFIX version: 14 updated: 2021/01/01 13:31:04
2466 dnl Compute the library-prefix for the given host system
2467 dnl $1 = variable to set
2468 define([CF_LIB_PREFIX],
2470 case "$cf_cv_system_name" in
2472 if test "$DFT_LWR_MODEL" = libtool; then
2481 (*) LIB_PREFIX='lib'
2484 ifelse($1,,,[$1=$LIB_PREFIX])
2485 AC_SUBST(LIB_PREFIX)
2487 dnl ---------------------------------------------------------------------------
2488 dnl CF_LIB_SUFFIX version: 28 updated: 2021/01/01 16:53:59
2490 dnl Compute the library file-suffix from the given model name
2492 dnl $2 = variable to set (the nominal library suffix)
2493 dnl $3 = dependency variable to set (actual filename)
2494 dnl The variable $LIB_SUFFIX, if set, prepends the variable to set.
2495 AC_DEFUN([CF_LIB_SUFFIX],
2503 case "$cf_cv_system_name" in
2514 case "$cf_cv_system_name" in
2525 case "$cf_cv_system_name" in
2534 (cygwin*|msys*|mingw*)
2572 if test -n "${LIB_SUFFIX}${EXTRA_SUFFIX}"
2574 $2="${LIB_SUFFIX}${EXTRA_SUFFIX}[$]{$2}"
2575 $3="${LIB_SUFFIX}${EXTRA_SUFFIX}[$]{$3}"
2578 dnl ---------------------------------------------------------------------------
2579 dnl CF_LIB_TYPE version: 5 updated: 2015/04/17 21:13:04
2581 dnl Compute the string to append to -library from the given model name
2583 dnl $2 = variable to set
2584 dnl The variable $LIB_SUFFIX, if set, prepends the variable to set.
2585 AC_DEFUN([CF_LIB_TYPE],
2591 (profile) $2='_p' ;;
2594 test -n "$LIB_SUFFIX" && $2="${LIB_SUFFIX}[$]{$2}"
2596 dnl ---------------------------------------------------------------------------
2597 dnl CF_LINK_DATAONLY version: 13 updated: 2020/02/08 15:59:30
2598 dnl ----------------
2599 dnl Some systems have a non-ANSI linker that doesn't pull in modules that have
2600 dnl only data (i.e., no functions), for example NeXT. On those systems we'll
2601 dnl have to provide wrappers for global tables to ensure they're linked
2603 AC_DEFUN([CF_LINK_DATAONLY],
2605 AC_MSG_CHECKING([if data-only library module links])
2606 AC_CACHE_VAL(cf_cv_link_dataonly,[
2608 cat >conftest.$ac_ext <<EOF
2609 #line __oline__ "configure"
2610 int testdata[[3]] = { 123, 456, 789 };
2612 if AC_TRY_EVAL(ac_compile) ; then
2613 mv conftest.o data.o && \
2614 ( $AR $ARFLAGS conftest.a data.o ) 2>&AC_FD_CC 1>/dev/null
2616 rm -f conftest.$ac_ext data.o
2617 cat >conftest.$ac_ext <<EOF
2618 #line __oline__ "configure"
2622 ${cf_cv_main_return:-return}(1); /* I'm told this linker is broken */
2624 extern int testdata[[3]];
2625 return testdata[[0]] == 123
2626 && testdata[[1]] == 456
2627 && testdata[[2]] == 789;
2631 if AC_TRY_EVAL(ac_compile); then
2632 mv conftest.o func.o && \
2633 ( $AR $ARFLAGS conftest.a func.o ) 2>&AC_FD_CC 1>/dev/null
2635 rm -f conftest.$ac_ext func.o
2636 ( eval $RANLIB conftest.a ) 2>&AC_FD_CC >/dev/null
2638 LIBS="conftest.a $LIBS"
2642 extern int testfunc();
2643 ${cf_cv_main_return:-return} (!testfunc());
2646 [cf_cv_link_dataonly=yes],
2647 [cf_cv_link_dataonly=no],
2648 [cf_cv_link_dataonly=unknown])
2651 AC_MSG_RESULT($cf_cv_link_dataonly)
2653 if test "$cf_cv_link_dataonly" = no ; then
2654 AC_DEFINE(BROKEN_LINKER,1,[if data-only library module does not link])
2657 AC_SUBST(BROKEN_LINKER)
2660 dnl ---------------------------------------------------------------------------
2661 dnl CF_MAKEFLAGS version: 21 updated: 2021/09/04 06:47:34
2663 dnl Some 'make' programs support ${MAKEFLAGS}, some ${MFLAGS}, to pass 'make'
2664 dnl options to lower-levels. It is very useful for "make -n" -- if we have it.
2665 dnl (GNU 'make' does both, something POSIX 'make', which happens to make the
2666 dnl ${MAKEFLAGS} variable incompatible because it adds the assignments :-)
2667 AC_DEFUN([CF_MAKEFLAGS],
2668 [AC_REQUIRE([AC_PROG_FGREP])dnl
2670 AC_CACHE_CHECK(for makeflags variable, cf_cv_makeflags,[
2672 for cf_option in '-${MAKEFLAGS}' '${MFLAGS}'
2674 cat >cf_makeflags.tmp <<CF_EOF
2677 @ echo '.$cf_option'
2679 cf_result=`${MAKE:-make} -k -f cf_makeflags.tmp 2>/dev/null | ${FGREP-fgrep} -v "ing directory" | sed -e 's,[[ ]]*$,,'`
2680 case "$cf_result" in
2682 cf_result="`${MAKE:-make} -k -f cf_makeflags.tmp CC=cc 2>/dev/null`"
2683 case "$cf_result" in
2684 (.*CC=*) cf_cv_makeflags=
2686 (*) cf_cv_makeflags=$cf_option
2694 CF_MSG_LOG(given option \"$cf_option\", no match \"$cf_result\")
2698 rm -f cf_makeflags.tmp
2701 AC_SUBST(cf_cv_makeflags)
2703 dnl ---------------------------------------------------------------------------
2704 dnl CF_MAKE_PHONY version: 3 updated: 2021/01/08 16:08:21
2706 dnl Check if the make-program handles a ".PHONY" target, e.g,. a target which
2707 dnl acts as a placeholder.
2709 dnl The ".PHONY" feature was proposed in 2011 here
2710 dnl https://www.austingroupbugs.net/view.php?id=523
2711 dnl and is scheduled for release in P1003.1 Issue 8 (late 2022).
2713 dnl This is not supported by SVr4 make (or SunOS 4, 4.3SD, etc), but works with
2714 dnl a few others (i.e., GNU make and the non-POSIX "BSD" make):
2716 dnl + This is a GNU make feature (since April 1988, but in turn from binutils,
2717 dnl date unspecified).
2719 dnl + It was adopted in NetBSD make in June 1995.
2721 dnl + The other BSD make programs are derived from the NetBSD make (and for
2722 dnl that reason are not actually different "implementations").
2724 dnl + Some features of NetBSD make were actually adapted from pmake, which
2725 dnl began as a modified GNU make starting in 1993.
2727 dnl + Version 3.8 of the dmake program in January 1992 also implemented this
2728 dnl GNU make extension, but is less well known than the BSD make.
2729 AC_DEFUN([CF_MAKE_PHONY],[
2730 AC_CACHE_CHECK(for \".PHONY\" make-support, cf_cv_make_PHONY,[
2733 mkdir conftest || exit 1
2735 cat >makefile <<'CF_EOF'
2739 @echo "** making [$]@ [$](DATA)"
2741 @echo "** making [$]@ [$](DATA)"
2743 @echo "** making [$]@ [$](DATA)"
2744 echo [$](DATA) > [$]@
2746 @echo "** making [$]@ [$](DATA)"
2747 echo [$](DATA) > [$]@
2749 for cf_data in 1 2 3
2751 ${MAKE:-make} always DATA=$cf_data
2752 ${MAKE:-make} once DATA=$cf_data
2753 ${MAKE:-make} -t always once
2754 if test -f always ; then
2755 echo "no (case 1)" > ../conftest.tmp
2756 elif test ! -f always.out ; then
2757 echo "no (case 2)" > ../conftest.tmp
2758 elif test ! -f once.out ; then
2759 echo "no (case 3)" > ../conftest.tmp
2760 elif ! cmp -s always.out once.out ; then
2761 echo "no (case 4)" > ../conftest.tmp
2762 diff always.out once.out
2764 cf_check="`cat always.out`"
2765 if test "x$cf_check" != "x$cf_data" ; then
2766 echo "no (case 5)" > ../conftest.tmp
2768 echo yes > ../conftest.tmp
2776 cf_cv_make_PHONY="`cat conftest.tmp`"
2781 test "x$cf_cv_make_PHONY" = xyes && MAKE_PHONY=
2782 test "x$cf_cv_make_PHONY" != xyes && MAKE_NO_PHONY=
2783 AC_SUBST(MAKE_NO_PHONY)
2784 AC_SUBST(MAKE_PHONY)
2786 dnl ---------------------------------------------------------------------------
2787 dnl CF_MAKE_TAGS version: 6 updated: 2010/10/23 15:52:32
2789 dnl Generate tags/TAGS targets for makefiles. Do not generate TAGS if we have
2790 dnl a monocase filesystem.
2791 AC_DEFUN([CF_MAKE_TAGS],[
2792 AC_REQUIRE([CF_MIXEDCASE_FILENAMES])
2794 AC_CHECK_PROGS(CTAGS, exctags ctags)
2795 AC_CHECK_PROGS(ETAGS, exetags etags)
2797 AC_CHECK_PROG(MAKE_LOWER_TAGS, ${CTAGS:-ctags}, yes, no)
2799 if test "$cf_cv_mixedcase" = yes ; then
2800 AC_CHECK_PROG(MAKE_UPPER_TAGS, ${ETAGS:-etags}, yes, no)
2805 if test "$MAKE_UPPER_TAGS" = yes ; then
2811 if test "$MAKE_LOWER_TAGS" = yes ; then
2820 AC_SUBST(MAKE_UPPER_TAGS)
2821 AC_SUBST(MAKE_LOWER_TAGS)
2823 dnl ---------------------------------------------------------------------------
2824 dnl CF_MIXEDCASE_FILENAMES version: 9 updated: 2021/01/01 16:53:59
2825 dnl ----------------------
2826 dnl Check if the file-system supports mixed-case filenames. If we're able to
2827 dnl create a lowercase name and see it as uppercase, it doesn't support that.
2828 AC_DEFUN([CF_MIXEDCASE_FILENAMES],
2830 AC_CACHE_CHECK(if filesystem supports mixed-case filenames,cf_cv_mixedcase,[
2831 if test "$cross_compiling" = yes ; then
2832 case "$target_alias" in
2833 (*-os2-emx*|*-msdosdjgpp*|*-cygwin*|*-msys*|*-mingw*|*-uwin*|darwin*)
2841 rm -f conftest CONFTEST
2843 if test -f CONFTEST ; then
2848 rm -f conftest CONFTEST
2851 test "$cf_cv_mixedcase" = yes && AC_DEFINE(MIXEDCASE_FILENAMES,1,[Define to 1 if filesystem supports mixed-case filenames.])
2853 dnl ---------------------------------------------------------------------------
2854 dnl CF_MKSTEMP version: 12 updated: 2023/01/05 17:53:11
2856 dnl Check for a working mkstemp. This creates two files, checks that they are
2857 dnl successfully created and distinct (AmigaOS apparently fails on the last).
2858 AC_DEFUN([CF_MKSTEMP],[
2862 AC_CACHE_CHECK(for working mkstemp, cf_cv_func_mkstemp,[
2865 $ac_includes_default
2869 char *tmpl = "conftestXXXXXX";
2877 for (n = 0; n < 2; ++n) {
2878 strcpy(name[n], tmpl);
2879 if ((fd = mkstemp(name[n])) >= 0) {
2880 if (!strcmp(name[n], tmpl)
2881 || stat(name[n], &sb) != 0
2882 || (sb.st_mode & S_IFMT) != S_IFREG
2883 || (sb.st_mode & 077) != 0) {
2890 && !strcmp(name[0], name[1]))
2892 ${cf_cv_main_return:-return}(result);
2894 ],[cf_cv_func_mkstemp=yes
2895 ],[cf_cv_func_mkstemp=no
2896 ],[cf_cv_func_mkstemp=maybe])
2898 if test "x$cf_cv_func_mkstemp" = xmaybe ; then
2899 AC_CHECK_FUNC(mkstemp)
2901 if test "x$cf_cv_func_mkstemp" = xyes || test "x$ac_cv_func_mkstemp" = xyes ; then
2902 AC_DEFINE(HAVE_MKSTEMP,1,[Define to 1 if mkstemp() is available and working.])
2905 dnl ---------------------------------------------------------------------------
2906 dnl CF_MSG_LOG version: 5 updated: 2010/10/23 15:52:32
2908 dnl Write a debug message to config.log, along with the line number in the
2909 dnl configure script.
2910 AC_DEFUN([CF_MSG_LOG],[
2911 echo "${as_me:-configure}:__oline__: testing $* ..." 1>&AC_FD_CC
2913 dnl ---------------------------------------------------------------------------
2914 dnl CF_NCURSES_ADDON version: 6 updated: 2021/01/04 19:33:05
2915 dnl ----------------
2916 dnl Configure an ncurses add-on, built outside the ncurses tree.
2917 AC_DEFUN([CF_NCURSES_ADDON],[
2918 AC_REQUIRE([CF_NCURSES_CONFIG])
2920 AC_PROVIDE([CF_SUBST_NCURSES_VERSION])
2922 AC_MSG_CHECKING(if you want wide-character code)
2923 AC_ARG_ENABLE(widec,
2924 [ --enable-widec compile with wide-char/UTF-8 code],
2925 [with_widec=$enableval],
2927 AC_MSG_RESULT($with_widec)
2928 if test "$with_widec" = yes ; then
2930 CF_NCURSES_CONFIG(ncursesw)
2932 CF_NCURSES_CONFIG(ncurses)
2935 if test "$NCURSES_CONFIG_PKG" != none ; then
2936 cf_version=`$PKG_CONFIG --modversion $NCURSES_CONFIG_PKG 2>/dev/null`
2938 NCURSES_MAJOR=`echo "$cf_version" | sed -e 's/\..*//'`
2939 NCURSES_MINOR=`echo "$cf_version" | sed -e 's/^[[0-9]][[0-9]]*\.//' -e 's/\..*//'`
2940 NCURSES_PATCH=`echo "$cf_version" | sed -e 's/^[[0-9]][[0-9]]*\.[[0-9]][[0-9]]*\.//'`
2942 cf_cv_abi_version=`$PKG_CONFIG --variable=abi_version $NCURSES_CONFIG_PKG 2>/dev/null`
2943 if test -z "$cf_cv_abi_version"
2945 cf_cv_abi_version=`$PKG_CONFIG --variable=major_version $NCURSES_CONFIG_PKG 2>/dev/null`
2948 elif test "$NCURSES_CONFIG" != none ; then
2950 cf_version=`$NCURSES_CONFIG --version 2>/dev/null`
2952 NCURSES_MAJOR=`echo "$cf_version" | sed -e 's/\..*//'`
2953 NCURSES_MINOR=`echo "$cf_version" | sed -e 's/^[[0-9]][[0-9]]*\.//' -e 's/\..*//'`
2954 NCURSES_PATCH=`echo "$cf_version" | sed -e 's/^[[0-9]][[0-9]]*\.[[0-9]][[0-9]]*\.//'`
2956 # ABI version is not available from headers
2957 cf_cv_abi_version=`$NCURSES_CONFIG --abi-version 2>/dev/null`
2961 for cf_name in MAJOR MINOR PATCH
2963 cat >conftest.$ac_ext <<CF_EOF
2964 #include <${cf_cv_ncurses_header:-curses.h}>
2965 AUTOCONF_$cf_name NCURSES_VERSION_$cf_name
2967 cf_try="$ac_cpp conftest.$ac_ext 2>&5 | fgrep AUTOCONF_$cf_name >conftest.out"
2969 if test -f conftest.out ; then
2970 cf_result=`sed -e "s/^.*AUTOCONF_${cf_name}[[ ]][[ ]]*//" conftest.out`
2971 eval NCURSES_$cf_name=\"$cf_result\"
2972 # cat conftest.$ac_ext
2977 cf_cv_abi_version=${NCURSES_MAJOR}
2981 cf_cv_rel_version=${NCURSES_MAJOR}.${NCURSES_MINOR}
2983 dnl Show the computed version, for logging
2984 cf_cv_timestamp=`date`
2986 AC_MSG_RESULT(Configuring NCURSES $cf_cv_rel_version ABI $cf_cv_abi_version ($cf_cv_timestamp))
2988 dnl We need these values in the generated headers
2989 AC_SUBST(NCURSES_MAJOR)
2990 AC_SUBST(NCURSES_MINOR)
2991 AC_SUBST(NCURSES_PATCH)
2993 dnl We need these values in the generated makefiles
2994 AC_SUBST(cf_cv_rel_version)
2995 AC_SUBST(cf_cv_abi_version)
2997 dnl FIXME - not needed for Ada95
2998 AC_SUBST(cf_cv_builtin_bool)
2999 AC_SUBST(cf_cv_header_stdbool_h)
3000 AC_SUBST(cf_cv_type_of_bool)dnl
3003 dnl ---------------------------------------------------------------------------
3004 dnl CF_NCURSES_CC_CHECK version: 6 updated: 2023/02/18 17:47:58
3005 dnl -------------------
3006 dnl Check if we can compile with ncurses' header file
3007 dnl $1 is the cache variable to set
3008 dnl $2 is the header-file to include
3009 dnl $3 is the root name (ncurses or ncursesw)
3010 AC_DEFUN([CF_NCURSES_CC_CHECK],[
3012 ]ifelse($3,ncursesw,[
3013 #define _XOPEN_SOURCE_EXTENDED
3014 #undef HAVE_LIBUTF8_H /* in case we used CF_UTF8_LIB */
3015 #define HAVE_LIBUTF8_H /* to force ncurses' header file to use cchar_t */
3018 #ifdef NCURSES_VERSION
3019 ]ifelse($3,ncursesw,[
3021 #error WACS_BSSB is not defined
3024 printf("%s\\n", NCURSES_VERSION);
3029 #error __NCURSES_H is not defined
3036 dnl ---------------------------------------------------------------------------
3037 dnl CF_NCURSES_CONFIG version: 28 updated: 2021/08/28 15:20:37
3038 dnl -----------------
3039 dnl Tie together the configure-script macros for ncurses, preferring these in
3041 dnl a) ".pc" files for pkg-config, using $NCURSES_CONFIG_PKG
3042 dnl b) the "-config" script from ncurses, using $NCURSES_CONFIG
3043 dnl c) just plain libraries
3045 dnl $1 is the root library name (default: "ncurses")
3046 AC_DEFUN([CF_NCURSES_CONFIG],[
3047 AC_REQUIRE([CF_PKG_CONFIG])
3048 cf_ncuconfig_root=ifelse($1,,ncurses,$1)
3049 cf_have_ncuconfig=no
3051 if test "x${PKG_CONFIG:=none}" != xnone; then
3052 AC_MSG_CHECKING(pkg-config for $cf_ncuconfig_root)
3053 if "$PKG_CONFIG" --exists $cf_ncuconfig_root ; then
3056 AC_MSG_CHECKING(if the $cf_ncuconfig_root package files work)
3057 cf_have_ncuconfig=unknown
3059 cf_save_CFLAGS="$CFLAGS"
3060 cf_save_CPPFLAGS="$CPPFLAGS"
3061 cf_save_LIBS="$LIBS"
3063 cf_pkg_cflags="`$PKG_CONFIG --cflags $cf_ncuconfig_root`"
3064 cf_pkg_libs="`$PKG_CONFIG --libs $cf_ncuconfig_root`"
3066 # while -W for passing linker flags is prevalent, it is not "standard".
3067 # At least one wrapper for c89/c99 (in Apple's xcode) has its own
3068 # incompatible _and_ non-standard -W option which gives an error. Work
3069 # around that pitfall.
3070 case "x${CC}@@${cf_pkg_libs}@${cf_pkg_cflags}" in
3072 CF_ADD_CFLAGS($cf_pkg_cflags)
3073 CF_ADD_LIBS($cf_pkg_libs)
3075 AC_TRY_LINK([#include <${cf_cv_ncurses_header:-curses.h}>],
3076 [initscr(); mousemask(0,0); tigetstr((char *)0);],
3077 [AC_TRY_RUN([#include <${cf_cv_ncurses_header:-curses.h}>
3079 { const char *xx = curses_version(); return (xx == 0); }],
3080 [cf_test_ncuconfig=yes],
3081 [cf_test_ncuconfig=no],
3082 [cf_test_ncuconfig=maybe])],
3083 [cf_test_ncuconfig=no])
3085 CFLAGS="$cf_save_CFLAGS"
3086 CPPFLAGS="$cf_save_CPPFLAGS"
3087 LIBS="$cf_save_LIBS"
3089 if test "x$cf_test_ncuconfig" != xyes; then
3090 cf_temp=`echo "x$cf_pkg_cflags" | sed -e s/^x// -e 's/-W[[^ ]]*//g'`
3091 cf_pkg_cflags="$cf_temp"
3092 cf_temp=`echo "x$cf_pkg_libs" | sed -e s/^x// -e 's/-W[[^ ]]*//g'`
3093 cf_pkg_libs="$cf_temp"
3098 CF_APPEND_CFLAGS($cf_pkg_cflags)
3099 CF_ADD_LIBS($cf_pkg_libs)
3101 AC_TRY_LINK([#include <${cf_cv_ncurses_header:-curses.h}>],
3102 [initscr(); mousemask(0,0); tigetstr((char *)0);],
3103 [AC_TRY_RUN([#include <${cf_cv_ncurses_header:-curses.h}>
3105 { const char *xx = curses_version(); return (xx == 0); }],
3106 [cf_have_ncuconfig=yes],
3107 [cf_have_ncuconfig=no],
3108 [cf_have_ncuconfig=maybe])],
3109 [cf_have_ncuconfig=no])
3110 AC_MSG_RESULT($cf_have_ncuconfig)
3111 test "$cf_have_ncuconfig" = maybe && cf_have_ncuconfig=yes
3112 if test "$cf_have_ncuconfig" != "yes"
3114 CPPFLAGS="$cf_save_CPPFLAGS"
3115 LIBS="$cf_save_LIBS"
3116 NCURSES_CONFIG_PKG=none
3118 AC_DEFINE(NCURSES,1,[Define to 1 if we are using ncurses headers/libraries])
3119 NCURSES_CONFIG_PKG=$cf_ncuconfig_root
3125 NCURSES_CONFIG_PKG=none
3128 NCURSES_CONFIG_PKG=none
3131 if test "x$cf_have_ncuconfig" = "xno"; then
3132 cf_ncurses_config="${cf_ncuconfig_root}${NCURSES_CONFIG_SUFFIX}-config"; echo "Looking for ${cf_ncurses_config}"
3134 CF_ACVERSION_CHECK(2.52,
3135 [AC_CHECK_TOOLS(NCURSES_CONFIG, ${cf_ncurses_config} ${cf_ncuconfig_root}6-config ${cf_ncuconfig_root}6-config ${cf_ncuconfig_root}5-config, none)],
3136 [AC_PATH_PROGS(NCURSES_CONFIG, ${cf_ncurses_config} ${cf_ncuconfig_root}6-config ${cf_ncuconfig_root}6-config ${cf_ncuconfig_root}5-config, none)])
3138 if test "$NCURSES_CONFIG" != none ; then
3140 CF_APPEND_CFLAGS(`$NCURSES_CONFIG --cflags`)
3141 CF_ADD_LIBS(`$NCURSES_CONFIG --libs`)
3143 # even with config script, some packages use no-override for curses.h
3144 CF_CURSES_HEADER(ifelse($1,,ncurses,$1))
3146 dnl like CF_NCURSES_CPPFLAGS
3147 AC_DEFINE(NCURSES,1,[Define to 1 if we are using ncurses headers/libraries])
3149 dnl like CF_NCURSES_LIBS
3150 CF_UPPER(cf_nculib_ROOT,HAVE_LIB$cf_ncuconfig_root)
3151 AC_DEFINE_UNQUOTED($cf_nculib_ROOT)
3153 dnl like CF_NCURSES_VERSION
3154 cf_cv_ncurses_version="`$NCURSES_CONFIG --version`"
3158 CF_NCURSES_CPPFLAGS(ifelse($1,,ncurses,$1))
3159 CF_NCURSES_LIBS(ifelse($1,,ncurses,$1))
3166 dnl ---------------------------------------------------------------------------
3167 dnl CF_NCURSES_CPPFLAGS version: 22 updated: 2021/01/02 09:31:20
3168 dnl -------------------
3169 dnl Look for the SVr4 curses clone 'ncurses' in the standard places, adjusting
3170 dnl the CPPFLAGS variable so we can include its header.
3172 dnl The header files may be installed as either curses.h, or ncurses.h (would
3173 dnl be obsolete, except that some packagers prefer this name to distinguish it
3174 dnl from a "native" curses implementation). If not installed for overwrite,
3175 dnl the curses.h file would be in an ncurses subdirectory (e.g.,
3176 dnl /usr/include/ncurses), but someone may have installed overwriting the
3177 dnl vendor's curses. Only very old versions (pre-1.9.2d, the first autoconf'd
3178 dnl version) of ncurses don't define either __NCURSES_H or NCURSES_VERSION in
3181 dnl If the installer has set $CFLAGS or $CPPFLAGS so that the ncurses header
3182 dnl is already in the include-path, don't even bother with this, since we cannot
3183 dnl easily determine which file it is. In this case, it has to be <curses.h>.
3185 dnl The optional parameter gives the root name of the library, in case it is
3186 dnl not installed as the default curses library. That is how the
3187 dnl wide-character version of ncurses is installed.
3188 AC_DEFUN([CF_NCURSES_CPPFLAGS],
3189 [AC_REQUIRE([CF_WITH_CURSES_DIR])
3191 AC_PROVIDE([CF_CURSES_CPPFLAGS])dnl
3192 cf_ncuhdr_root=ifelse($1,,ncurses,$1)
3194 test -n "$cf_cv_curses_dir" && \
3195 test "$cf_cv_curses_dir" != "no" && { \
3196 CF_ADD_INCDIR($cf_cv_curses_dir/include/$cf_ncuhdr_root)
3199 AC_CACHE_CHECK(for $cf_ncuhdr_root header in include-path, cf_cv_ncurses_h,[
3200 cf_header_list="$cf_ncuhdr_root/curses.h $cf_ncuhdr_root/ncurses.h"
3201 { test "$cf_ncuhdr_root" = ncurses || test "$cf_ncuhdr_root" = ncursesw; } && cf_header_list="$cf_header_list curses.h ncurses.h"
3202 for cf_header in $cf_header_list
3204 CF_NCURSES_CC_CHECK(cf_cv_ncurses_h,$cf_header,$1)
3205 test "$cf_cv_ncurses_h" != no && break
3212 # some applications need this, but should check for NCURSES_VERSION
3213 AC_DEFINE(NCURSES,1,[Define to 1 if we are using ncurses headers/libraries])
3217 dnl ---------------------------------------------------------------------------
3218 dnl CF_NCURSES_HEADER version: 7 updated: 2021/01/04 19:33:05
3219 dnl -----------------
3220 dnl Find a "curses" header file, e.g,. "curses.h", or one of the more common
3221 dnl variations of ncurses' installs.
3223 dnl See also CF_CURSES_HEADER, which sets the same cache variable.
3224 AC_DEFUN([CF_NCURSES_HEADER],[
3226 if test "$cf_cv_ncurses_h" != no ; then
3227 cf_cv_ncurses_header=$cf_cv_ncurses_h
3230 AC_CACHE_CHECK(for $cf_ncuhdr_root include-path, cf_cv_ncurses_h2,[
3231 test -n "$verbose" && echo
3232 CF_HEADER_PATH(cf_search,$cf_ncuhdr_root)
3233 test -n "$verbose" && echo "search path $cf_search"
3234 cf_save2_CPPFLAGS="$CPPFLAGS"
3235 for cf_incdir in $cf_search
3237 CF_ADD_INCDIR($cf_incdir)
3242 CF_NCURSES_CC_CHECK(cf_cv_ncurses_h2,$cf_header,$1)
3243 if test "$cf_cv_ncurses_h2" != no ; then
3244 cf_cv_ncurses_h2=$cf_incdir/$cf_header
3245 test -n "$verbose" && echo $ECHO_N " ... found $ECHO_C" 1>&AC_FD_MSG
3248 test -n "$verbose" && echo " ... tested $cf_incdir/$cf_header" 1>&AC_FD_MSG
3250 CPPFLAGS="$cf_save2_CPPFLAGS"
3251 test "$cf_cv_ncurses_h2" != no && break
3253 test "$cf_cv_ncurses_h2" = no && AC_MSG_ERROR(not found)
3256 CF_DIRNAME(cf_1st_incdir,$cf_cv_ncurses_h2)
3257 cf_cv_ncurses_header="`basename "$cf_cv_ncurses_h2"`"
3258 if test "`basename "$cf_1st_incdir"`" = "$cf_ncuhdr_root" ; then
3259 cf_cv_ncurses_header="$cf_ncuhdr_root/$cf_cv_ncurses_header"
3261 CF_ADD_INCDIR($cf_1st_incdir)
3265 # Set definitions to allow ifdef'ing for ncurses.h
3267 case "$cf_cv_ncurses_header" in
3269 AC_DEFINE(HAVE_NCURSES_H,1,[Define to 1 if we have ncurses.h])
3273 case "$cf_cv_ncurses_header" in
3274 (ncurses/curses.h|ncurses/ncurses.h)
3275 AC_DEFINE(HAVE_NCURSES_NCURSES_H,1,[Define to 1 if we have ncurses/ncurses.h])
3277 (ncursesw/curses.h|ncursesw/ncurses.h)
3278 AC_DEFINE(HAVE_NCURSESW_NCURSES_H,1,[Define to 1 if we have ncursesw/ncurses.h])
3283 dnl ---------------------------------------------------------------------------
3284 dnl CF_NCURSES_LIBS version: 21 updated: 2021/09/04 06:37:12
3286 dnl Look for the ncurses library. This is a little complicated on Linux,
3287 dnl because it may be linked with the gpm (general purpose mouse) library.
3288 dnl Some distributions have gpm linked with (bsd) curses, which makes it
3289 dnl unusable with ncurses. However, we don't want to link with gpm unless
3290 dnl ncurses has a dependency, since gpm is normally set up as a shared library,
3291 dnl and the linker will record a dependency.
3293 dnl The optional parameter gives the root name of the library, in case it is
3294 dnl not installed as the default curses library. That is how the
3295 dnl wide-character version of ncurses is installed.
3296 AC_DEFUN([CF_NCURSES_LIBS],
3297 [AC_REQUIRE([CF_NCURSES_CPPFLAGS])
3299 cf_nculib_root=ifelse($1,,ncurses,$1)
3300 # This works, except for the special case where we find gpm, but
3301 # ncurses is in a nonstandard location via $LIBS, and we really want
3304 cf_ncurses_SAVE="$LIBS"
3305 AC_CHECK_LIB(gpm,Gpm_Open,
3306 [AC_CHECK_LIB(gpm,initscr,
3307 [LIBS="$cf_ncurses_SAVE"],
3308 [cf_ncurses_LIBS="-lgpm"])])
3312 # This is only necessary if you are linking against an obsolete
3313 # version of ncurses (but it should do no harm, since it is static).
3314 if test "$cf_nculib_root" = ncurses ; then
3315 AC_CHECK_LIB(mytinfo,tgoto,[cf_ncurses_LIBS="-lmytinfo $cf_ncurses_LIBS"])
3320 CF_ADD_LIBS($cf_ncurses_LIBS)
3322 if test -n "$cf_cv_curses_dir" && test "$cf_cv_curses_dir" != "no"
3324 CF_ADD_LIBS(-l$cf_nculib_root)
3326 CF_FIND_LIBRARY($cf_nculib_root,$cf_nculib_root,
3327 [#include <${cf_cv_ncurses_header:-curses.h}>],
3332 if test -n "$cf_ncurses_LIBS" ; then
3333 AC_MSG_CHECKING(if we can link $cf_nculib_root without $cf_ncurses_LIBS)
3334 cf_ncurses_SAVE="$LIBS"
3335 for p in $cf_ncurses_LIBS ; do
3336 q=`echo "$LIBS" | sed -e "s%$p %%" -e "s%$p$%%"`
3337 if test "$q" != "$LIBS" ; then
3341 AC_TRY_LINK([#include <${cf_cv_ncurses_header:-curses.h}>],
3342 [initscr(); mousemask(0,0); tigetstr((char *)0);],
3343 [AC_MSG_RESULT(yes)],
3345 LIBS="$cf_ncurses_SAVE"])
3348 CF_UPPER(cf_nculib_ROOT,HAVE_LIB$cf_nculib_root)
3349 AC_DEFINE_UNQUOTED($cf_nculib_ROOT)
3351 dnl ---------------------------------------------------------------------------
3352 dnl CF_NCURSES_VERSION version: 17 updated: 2023/01/05 18:54:02
3353 dnl ------------------
3354 dnl Check for the version of ncurses, to aid in reporting bugs, etc.
3355 dnl Call CF_CURSES_CPPFLAGS first, or CF_NCURSES_CPPFLAGS. We don't use
3356 dnl AC_REQUIRE since that does not work with the shell's if/then/else/fi.
3357 AC_DEFUN([CF_NCURSES_VERSION],
3359 AC_REQUIRE([CF_CURSES_CPPFLAGS])dnl
3360 AC_CACHE_CHECK(for ncurses version, cf_cv_ncurses_version,[
3361 cf_cv_ncurses_version=no
3363 rm -f "$cf_tempfile"
3365 $ac_includes_default
3367 #include <${cf_cv_ncurses_header:-curses.h}>
3371 FILE *fp = fopen("$cf_tempfile", "w");
3372 #ifdef NCURSES_VERSION
3373 # ifdef NCURSES_VERSION_PATCH
3374 fprintf(fp, "%s.%d\\n", NCURSES_VERSION, NCURSES_VERSION_PATCH);
3376 fprintf(fp, "%s\\n", NCURSES_VERSION);
3380 fprintf(fp, "old\\n");
3385 ${cf_cv_main_return:-return}(0);
3387 cf_cv_ncurses_version=`cat $cf_tempfile`],,[
3389 # This will not work if the preprocessor splits the line after the
3390 # Autoconf token. The 'unproto' program does that.
3391 cat > "conftest.$ac_ext" <<EOF
3392 #include <${cf_cv_ncurses_header:-curses.h}>
3394 #ifdef NCURSES_VERSION
3395 Autoconf NCURSES_VERSION
3403 cf_try="$ac_cpp conftest.$ac_ext 2>&AC_FD_CC | grep '^Autoconf ' >conftest.out"
3405 if test -f conftest.out ; then
3406 cf_out=`sed -e 's%^Autoconf %%' -e 's%^[[^"]]*"%%' -e 's%".*%%' conftest.out`
3407 test -n "$cf_out" && cf_cv_ncurses_version="$cf_out"
3411 rm -f "$cf_tempfile"
3413 test "$cf_cv_ncurses_version" = no || AC_DEFINE(NCURSES,1,[Define to 1 if we are using ncurses headers/libraries])
3415 dnl ---------------------------------------------------------------------------
3416 dnl CF_OBJ_SUBDIR version: 8 updated: 2021/01/01 13:31:04
3418 dnl Compute the object-directory name from the given model name
3419 AC_DEFUN([CF_OBJ_SUBDIR],
3422 (libtool) $2='obj_lo' ;;
3423 (normal) $2='objects' ;;
3424 (debug) $2='obj_g' ;;
3425 (profile) $2='obj_p' ;;
3427 case "$cf_cv_system_name" in
3435 dnl ---------------------------------------------------------------------------
3436 dnl CF_PATHSEP version: 8 updated: 2021/01/01 13:31:04
3438 dnl Provide a value for the $PATH and similar separator (or amend the value
3439 dnl as provided in autoconf 2.5x).
3440 AC_DEFUN([CF_PATHSEP],
3442 AC_MSG_CHECKING(for PATH separator)
3443 case "$cf_cv_system_name" in
3444 (os2*) PATH_SEPARATOR=';' ;;
3445 (*) ${PATH_SEPARATOR:=':'} ;;
3447 ifelse([$1],,,[$1=$PATH_SEPARATOR])
3448 AC_SUBST(PATH_SEPARATOR)
3449 AC_MSG_RESULT($PATH_SEPARATOR)
3451 dnl ---------------------------------------------------------------------------
3452 dnl CF_PATH_SYNTAX version: 18 updated: 2020/12/31 18:40:20
3454 dnl Check the argument to see that it looks like a pathname. Rewrite it if it
3455 dnl begins with one of the prefix/exec_prefix variables, and then again if the
3456 dnl result begins with 'NONE'. This is necessary to work around autoconf's
3457 dnl delayed evaluation of those symbols.
3458 AC_DEFUN([CF_PATH_SYNTAX],[
3459 if test "x$prefix" != xNONE; then
3460 cf_path_syntax="$prefix"
3462 cf_path_syntax="$ac_default_prefix"
3466 (.\[$]\(*\)*|.\'*\'*)
3470 (.[[a-zA-Z]]:[[\\/]]*) # OS/2 EMX
3472 (.\[$]\{*prefix\}*|.\[$]\{*dir\}*)
3476 $1=`echo "[$]$1" | sed -e s%NONE%$cf_path_syntax%`
3481 $1=`echo "[$]$1" | sed -e s%NONE%$cf_path_syntax%`
3484 ifelse([$2],,[AC_MSG_ERROR([expected a pathname, not \"[$]$1\"])],$2)
3488 dnl ---------------------------------------------------------------------------
3489 dnl CF_PKG_CONFIG version: 13 updated: 2023/10/28 11:59:01
3491 dnl Check for the package-config program, unless disabled by command-line.
3493 dnl Sets $PKG_CONFIG to the pathname of the pkg-config program.
3494 AC_DEFUN([CF_PKG_CONFIG],
3496 AC_MSG_CHECKING(if you want to use pkg-config)
3497 AC_ARG_WITH(pkg-config,
3498 [[ --with-pkg-config[=CMD] enable/disable use of pkg-config and its name CMD]],
3499 [cf_pkg_config=$withval],
3500 [cf_pkg_config=yes])
3501 AC_MSG_RESULT($cf_pkg_config)
3503 case "$cf_pkg_config" in
3508 CF_ACVERSION_CHECK(2.52,
3509 [AC_PATH_TOOL(PKG_CONFIG, pkg-config, none)],
3510 [AC_PATH_PROG(PKG_CONFIG, pkg-config, none)])
3517 test -z "$PKG_CONFIG" && PKG_CONFIG=none
3518 if test "$PKG_CONFIG" != none ; then
3519 CF_PATH_SYNTAX(PKG_CONFIG)
3520 elif test "x$cf_pkg_config" != xno ; then
3521 AC_MSG_WARN(pkg-config is not installed)
3524 AC_SUBST(PKG_CONFIG)
3526 dnl ---------------------------------------------------------------------------
3527 dnl CF_POSIX_C_SOURCE version: 12 updated: 2023/02/18 17:41:25
3528 dnl -----------------
3529 dnl Define _POSIX_C_SOURCE to the given level, and _POSIX_SOURCE if needed.
3531 dnl POSIX.1-1990 _POSIX_SOURCE
3532 dnl POSIX.1-1990 and _POSIX_SOURCE and
3533 dnl POSIX.2-1992 C-Language _POSIX_C_SOURCE=2
3535 dnl POSIX.1b-1993 _POSIX_C_SOURCE=199309L
3536 dnl POSIX.1c-1996 _POSIX_C_SOURCE=199506L
3537 dnl X/Open 2000 _POSIX_C_SOURCE=200112L
3540 dnl $1 is the nominal value for _POSIX_C_SOURCE
3541 AC_DEFUN([CF_POSIX_C_SOURCE],
3542 [AC_REQUIRE([CF_POSIX_VISIBLE])dnl
3544 if test "$cf_cv_posix_visible" = no; then
3546 cf_POSIX_C_SOURCE=ifelse([$1],,199506L,[$1])
3548 cf_save_CFLAGS="$CFLAGS"
3549 cf_save_CPPFLAGS="$CPPFLAGS"
3551 CF_REMOVE_DEFINE(cf_trim_CFLAGS,$cf_save_CFLAGS,_POSIX_C_SOURCE)
3552 CF_REMOVE_DEFINE(cf_trim_CPPFLAGS,$cf_save_CPPFLAGS,_POSIX_C_SOURCE)
3554 AC_CACHE_CHECK(if we should define _POSIX_C_SOURCE,cf_cv_posix_c_source,[
3555 CF_MSG_LOG(if the symbol is already defined go no further)
3556 AC_TRY_COMPILE([#include <sys/types.h>],[
3557 #ifndef _POSIX_C_SOURCE
3558 #error _POSIX_C_SOURCE is not defined
3560 [cf_cv_posix_c_source=no],
3561 [cf_want_posix_source=no
3562 case .$cf_POSIX_C_SOURCE in
3564 cf_cv_posix_c_source="-D_POSIX_C_SOURCE=$cf_POSIX_C_SOURCE"
3567 cf_cv_posix_c_source="-D_POSIX_C_SOURCE=$cf_POSIX_C_SOURCE"
3568 cf_want_posix_source=yes
3571 cf_want_posix_source=yes
3574 if test "$cf_want_posix_source" = yes ; then
3575 AC_TRY_COMPILE([#include <sys/types.h>],[
3576 #ifdef _POSIX_SOURCE
3577 #error _POSIX_SOURCE is defined
3579 cf_cv_posix_c_source="$cf_cv_posix_c_source -D_POSIX_SOURCE")
3581 CF_MSG_LOG(ifdef from value $cf_POSIX_C_SOURCE)
3582 CFLAGS="$cf_trim_CFLAGS"
3583 CPPFLAGS="$cf_trim_CPPFLAGS"
3584 CF_APPEND_TEXT(CPPFLAGS,$cf_cv_posix_c_source)
3585 CF_MSG_LOG(if the second compile does not leave our definition intact error)
3586 AC_TRY_COMPILE([#include <sys/types.h>],[
3587 #ifndef _POSIX_C_SOURCE
3588 #error _POSIX_C_SOURCE is not defined
3590 [cf_cv_posix_c_source=no])
3591 CFLAGS="$cf_save_CFLAGS"
3592 CPPFLAGS="$cf_save_CPPFLAGS"
3596 if test "$cf_cv_posix_c_source" != no ; then
3597 CFLAGS="$cf_trim_CFLAGS"
3598 CPPFLAGS="$cf_trim_CPPFLAGS"
3599 CF_ADD_CFLAGS($cf_cv_posix_c_source)
3602 fi # cf_cv_posix_visible
3605 dnl ---------------------------------------------------------------------------
3606 dnl CF_POSIX_VISIBLE version: 1 updated: 2018/12/31 20:46:17
3607 dnl ----------------
3608 dnl POSIX documents test-macros which an application may set before any system
3609 dnl headers are included to make features available.
3611 dnl Some BSD platforms (originally FreeBSD, but copied by a few others)
3612 dnl diverged from POSIX in 2002 by setting symbols which make all of the most
3613 dnl recent features visible in the system header files unless the application
3614 dnl overrides the corresponding test-macros. Doing that introduces portability
3617 dnl This macro makes a special check for the symbols used for this, to avoid a
3618 dnl conflicting definition.
3619 AC_DEFUN([CF_POSIX_VISIBLE],
3621 AC_CACHE_CHECK(if the POSIX test-macros are already defined,cf_cv_posix_visible,[
3622 AC_TRY_COMPILE([#include <stdio.h>],[
3623 #if defined(__POSIX_VISIBLE) && ((__POSIX_VISIBLE - 0L) > 0) \
3624 && defined(__XSI_VISIBLE) && ((__XSI_VISIBLE - 0L) > 0) \
3625 && defined(__BSD_VISIBLE) && ((__BSD_VISIBLE - 0L) > 0) \
3626 && defined(__ISO_C_VISIBLE) && ((__ISO_C_VISIBLE - 0L) > 0)
3627 #error conflicting symbols found
3629 ],[cf_cv_posix_visible=no],[cf_cv_posix_visible=yes])
3632 dnl ---------------------------------------------------------------------------
3633 dnl CF_PROG_AR version: 1 updated: 2009/01/01 20:15:22
3635 dnl Check for archiver "ar".
3636 AC_DEFUN([CF_PROG_AR],[
3637 AC_CHECK_TOOL(AR, ar, ar)
3639 dnl ---------------------------------------------------------------------------
3640 dnl CF_PROG_AWK version: 1 updated: 2006/09/16 11:40:59
3642 dnl Check for awk, ensure that the check found something.
3643 AC_DEFUN([CF_PROG_AWK],
3646 test -z "$AWK" && AC_MSG_ERROR(No awk program found)
3648 dnl ---------------------------------------------------------------------------
3649 dnl CF_PROG_CC version: 5 updated: 2019/12/31 08:53:54
3651 dnl standard check for CC, plus followup sanity checks
3652 dnl $1 = optional parameter to pass to AC_PROG_CC to specify compiler name
3653 AC_DEFUN([CF_PROG_CC],[
3654 CF_ACVERSION_CHECK(2.53,
3655 [AC_MSG_WARN(this will incorrectly handle gnatgcc choice)
3656 AC_REQUIRE([AC_PROG_CC])],
3658 ifelse($1,,[AC_PROG_CC],[AC_PROG_CC($1)])
3660 CF_ACVERSION_CHECK(2.52,
3665 dnl ---------------------------------------------------------------------------
3666 dnl CF_PROG_CC_C_O version: 6 updated: 2021/01/01 13:31:04
3668 dnl Analogous to AC_PROG_CC_C_O, but more useful: tests only $CC, ensures that
3669 dnl the output file can be renamed, and allows for a shell variable that can
3670 dnl be used later. The parameter is either CC or CXX. The result is the
3672 dnl $cf_cv_prog_CC_c_o
3673 dnl $cf_cv_prog_CXX_c_o
3676 dnl $2 = compiler options, if any
3677 AC_DEFUN([CF_PROG_CC_C_O],
3678 [AC_REQUIRE([AC_PROG_CC])dnl
3679 AC_MSG_CHECKING([whether [$]$1 understands -c and -o together])
3680 AC_CACHE_VAL(cf_cv_prog_$1_c_o,
3682 cat > conftest.$ac_ext <<CF_EOF
3685 ${cf_cv_main_return:-return}(0);
3688 # We do the test twice because some compilers refuse to overwrite an
3689 # existing .o file with -o, though they will create one.
3690 ac_try='[$]$1 $2 -c conftest.$ac_ext -o conftest2.$ac_objext >&AC_FD_CC'
3691 if AC_TRY_EVAL(ac_try) &&
3692 test -f conftest2.$ac_objext && AC_TRY_EVAL(ac_try);
3694 eval cf_cv_prog_$1_c_o=yes
3696 eval cf_cv_prog_$1_c_o=no
3700 if test "$cf_cv_prog_$1_c_o" = yes; then
3701 AC_MSG_RESULT([yes])
3706 dnl ---------------------------------------------------------------------------
3707 dnl CF_PROG_EGREP version: 2 updated: 2015/04/18 08:56:57
3709 dnl AC_PROG_EGREP was introduced in autoconf 2.53.
3710 dnl This macro adds a check to ensure the script found something.
3711 AC_DEFUN([CF_PROG_EGREP],
3712 [AC_CACHE_CHECK([for egrep], [ac_cv_prog_egrep],
3713 [if echo a | (grep -E '(a|b)') >/dev/null 2>&1
3714 then ac_cv_prog_egrep='grep -E'
3715 else ac_cv_prog_egrep='egrep'
3717 EGREP=$ac_cv_prog_egrep
3719 test -z "$EGREP" && AC_MSG_ERROR(No egrep program found)
3721 dnl ---------------------------------------------------------------------------
3722 dnl CF_PROG_EXT version: 15 updated: 2021/01/02 09:31:20
3724 dnl Compute $PROG_EXT, used for non-Unix ports, such as OS/2 EMX.
3725 AC_DEFUN([CF_PROG_EXT],
3727 AC_REQUIRE([CF_CHECK_CACHE])
3728 case "$cf_cv_system_name" in
3730 CFLAGS="$CFLAGS -Zmt"
3731 CF_APPEND_TEXT(CPPFLAGS,-D__ST_MT_ERRNO__)
3732 CXXFLAGS="$CXXFLAGS -Zmt"
3733 # autoconf's macro sets -Zexe and suffix both, which conflict:w
3734 LDFLAGS="$LDFLAGS -Zmt -Zcrtdll"
3744 test -n "$PROG_EXT" && AC_DEFINE_UNQUOTED(PROG_EXT,"$PROG_EXT",[Define to the program extension (normally blank)])
3746 dnl ---------------------------------------------------------------------------
3747 dnl CF_PROG_GNAT version: 12 updated: 2021/01/02 17:09:14
3749 dnl Check for gnat/gnatmake/etc, ensure that the toolset is complete.
3750 AC_DEFUN([CF_PROG_GNAT],[
3751 for cf_prog_gnat in gnat gnatmake gprconfig gprbuild
3753 CF_UPPER(cf_upper_prog_gnat,${cf_prog_gnat})
3755 unset ac_cv_path_cf_TEMP_gnat
3757 AC_PATH_PROG(cf_TEMP_gnat,$cf_prog_gnat,no)
3758 eval "cf_cv_PATH_$cf_upper_prog_gnat=[$]ac_cv_path_cf_TEMP_gnat"
3760 if test "x$cf_TEMP_gnat" != xno; then
3761 unset cf_cv_gnat_version
3763 CF_GNAT_VERSION(cf_TEMP_gnat,$cf_prog_gnat)
3765 eval "cf_cv_VERSION_$cf_upper_prog_gnat=[$]cf_TEMP_gnat"
3768 unset cf_cv_gnat_version
3769 unset ac_cv_path_cf_TEMP_gnat
3772 if test "x$cf_cv_VERSION_GNATMAKE" = "xno"; then
3774 cf_cv_prog_gnat_correct=no
3776 cf_ada_make=gnatmake
3777 if test "x$cf_cv_VERSION_GPRCONFIG" = "xno"; then
3778 # gprconfig is newer than gnatmake; we can continue...
3781 rm -rf ./conftest* ./*~conftest*
3782 if mkdir conftest.src
3786 for cf_gprconfig in Ada C
3788 AC_MSG_CHECKING(for gprconfig name for $cf_gprconfig)
3789 if test "$cf_gprconfig" = C
3791 for cf_gprconfig_param in \
3792 "$cf_gprconfig,,,,GNATGCC" \
3793 "$cf_gprconfig,,,,GCC" \
3796 cf_gprconfig_value=`echo s| gprconfig --config=$cf_gprconfig_param 2>&AC_FD_CC | ${AWK:-awk} '/^\*/{print [$]3;}' | head -n 1`
3797 test -n "$cf_gprconfig_value" && break
3800 cf_gprconfig_param=$cf_gprconfig
3801 cf_gprconfig_value=`echo s| gprconfig --config=$cf_gprconfig_param 2>&AC_FD_CC | ${AWK:-awk} '/^\*/{print [$]3;}' | head -n 1`
3803 if test -n "$cf_gprconfig_value"
3805 eval "cf_ada_config_[$]cf_gprconfig=[$]cf_gprconfig_value"
3806 AC_MSG_RESULT($cf_gprconfig_value)
3808 AC_MSG_RESULT(missing)
3814 rm -rf ./conftest* ./*~conftest*
3817 if test "x$cf_ada_config" != "x#"
3820 CF_CHECK_GNAT_VERSION
3821 AC_CHECK_PROG(M4_exists, m4, yes, no)
3822 if test "$ac_cv_prog_M4_exists" = no; then
3823 cf_cv_prog_gnat_correct=no
3824 AC_MSG_WARN(Ada95 binding required program m4 not found. Ada95 binding disabled)
3826 if test "$cf_cv_prog_gnat_correct" = yes; then
3827 AC_MSG_CHECKING(if GNAT works)
3828 CF_GNAT_TRY_RUN([procedure conftest;],
3831 procedure conftest is
3833 Text_IO.Put ("Hello World");
3835 GNAT.OS_Lib.OS_Exit (0);
3837 [cf_cv_prog_gnat_correct=yes],
3838 [cf_cv_prog_gnat_correct=no])
3839 AC_MSG_RESULT($cf_cv_prog_gnat_correct)
3842 cf_cv_prog_gnat_correct=no
3846 AC_SUBST(cf_ada_make)
3847 AC_SUBST(cf_ada_config)
3848 AC_SUBST(cf_ada_config_Ada)
3849 AC_SUBST(cf_ada_config_C)
3851 dnl ---------------------------------------------------------------------------
3852 dnl CF_PROG_INSTALL version: 10 updated: 2021/01/04 19:33:05
3854 dnl Force $INSTALL to be an absolute-path. Otherwise, edit_man.sh and the
3855 dnl misc/tabset install won't work properly. Usually this happens only when
3856 dnl using the fallback mkinstalldirs script
3857 AC_DEFUN([CF_PROG_INSTALL],
3863 CF_DIRNAME(cf_dir,$INSTALL)
3864 test -z "$cf_dir" && cf_dir=.
3865 INSTALL="`cd \"$cf_dir\" && pwd`"/"`echo "$INSTALL" | sed -e 's%^.*/%%'`"
3869 dnl ---------------------------------------------------------------------------
3870 dnl CF_PROG_LN_S version: 2 updated: 2010/08/14 18:25:37
3872 dnl Combine checks for "ln -s" and "ln -sf", updating $LN_S to include "-f"
3873 dnl option if it is supported.
3874 AC_DEFUN([CF_PROG_LN_S],[
3876 AC_MSG_CHECKING(if $LN_S -f options work)
3878 rm -f conf$$.src conf$$dst
3880 echo first >conf$$.src
3881 if $LN_S -f conf$$.src conf$$.dst 2>/dev/null; then
3886 rm -f conf$$.dst conf$$src
3887 AC_MSG_RESULT($cf_prog_ln_sf)
3889 test "$cf_prog_ln_sf" = yes && LN_S="$LN_S -f"
3891 dnl ---------------------------------------------------------------------------
3892 dnl CF_REMOVE_CFLAGS version: 3 updated: 2021/09/05 17:25:40
3893 dnl ----------------
3894 dnl Remove a given option from CFLAGS/CPPFLAGS
3895 dnl $1 = option to remove
3896 dnl $2 = variable to update
3897 dnl $3 = nonempty to allow verbose message
3898 define([CF_REMOVE_CFLAGS],
3900 cf_tmp_cflag=`echo "x$1" | sed -e 's/^.//' -e 's/=.*//'`
3903 cf_old_cflag=`echo "x[$]$2" | sed -e 's/^.//' -e 's/[[ ]][[ ]]*-/ -/g' -e "s%$cf_tmp_cflag\\(=[[^ ]][[^ ]]*\\)\?%%" -e 's/^[[ ]]*//' -e 's%[[ ]][[ ]]*-D% -D%g' -e 's%[[ ]][[ ]]*-I% -I%g'`
3904 test "[$]$2" != "$cf_old_cflag" || break
3905 ifelse([$3],,,[CF_VERBOSE(removing old option $1 from $2)])
3909 dnl ---------------------------------------------------------------------------
3910 dnl CF_REMOVE_DEFINE version: 3 updated: 2010/01/09 11:05:50
3911 dnl ----------------
3912 dnl Remove all -U and -D options that refer to the given symbol from a list
3913 dnl of C compiler options. This works around the problem that not all
3914 dnl compilers process -U and -D options from left-to-right, so a -U option
3915 dnl cannot be used to cancel the effect of a preceding -D option.
3917 dnl $1 = target (which could be the same as the source variable)
3918 dnl $2 = source (including '$')
3919 dnl $3 = symbol to remove
3920 define([CF_REMOVE_DEFINE],
3923 sed -e 's/-[[UD]]'"$3"'\(=[[^ ]]*\)\?[[ ]]/ /g' \
3924 -e 's/-[[UD]]'"$3"'\(=[[^ ]]*\)\?[$]//g'`
3926 dnl ---------------------------------------------------------------------------
3927 dnl CF_REMOVE_LIB version: 1 updated: 2007/02/17 14:11:52
3929 dnl Remove the given library from the symbol
3931 dnl $1 = target (which could be the same as the source variable)
3932 dnl $2 = source (including '$')
3933 dnl $3 = library to remove
3934 define([CF_REMOVE_LIB],
3936 # remove $3 library from $2
3937 $1=`echo "$2" | sed -e 's/-l$3[[ ]]//g' -e 's/-l$3[$]//'`
3939 dnl ---------------------------------------------------------------------------
3940 dnl CF_RESTORE_XTRA_FLAGS version: 1 updated: 2020/01/11 16:47:45
3941 dnl ---------------------
3942 dnl Restore flags saved in CF_SAVE_XTRA_FLAGS
3943 dnl $1 = name of current macro
3944 define([CF_RESTORE_XTRA_FLAGS],
3946 LIBS="$cf_save_LIBS_$1"
3947 CFLAGS="$cf_save_CFLAGS_$1"
3948 CPPFLAGS="$cf_save_CPPFLAGS_$1"
3950 dnl ---------------------------------------------------------------------------
3951 dnl CF_SAVE_XTRA_FLAGS version: 1 updated: 2020/01/11 16:46:44
3952 dnl ------------------
3953 dnl Use this macro to save CFLAGS/CPPFLAGS/LIBS before checks against X headers
3954 dnl and libraries which do not update those variables.
3956 dnl $1 = name of current macro
3957 define([CF_SAVE_XTRA_FLAGS],
3959 cf_save_LIBS_$1="$LIBS"
3960 cf_save_CFLAGS_$1="$CFLAGS"
3961 cf_save_CPPFLAGS_$1="$CPPFLAGS"
3962 LIBS="$LIBS ${X_PRE_LIBS} ${X_LIBS} ${X_EXTRA_LIBS}"
3963 for cf_X_CFLAGS in $X_CFLAGS
3965 case "x$cf_X_CFLAGS" in
3967 CPPFLAGS="$CPPFLAGS $cf_X_CFLAGS"
3970 CFLAGS="$CFLAGS $cf_X_CFLAGS"
3975 dnl ---------------------------------------------------------------------------
3976 dnl CF_SHARED_OPTS version: 108 updated: 2023/10/28 11:59:01
3979 dnl Attempt to determine the appropriate CC/LD options for creating a shared
3983 dnl a) ${LOCAL_LDFLAGS} is used to link executables that will run within
3984 dnl the build-tree, i.e., by making use of the libraries that are compiled in
3985 dnl $rel_builddir/lib We avoid compiling-in a $rel_builddir/lib path for the
3986 dnl shared library since that can lead to unexpected results at runtime.
3987 dnl b) ${LOCAL_LDFLAGS2} has the same intention but assumes that the shared
3988 dnl libraries are compiled in ../../lib
3990 dnl The variable 'cf_cv_do_symlinks' is used to control whether we configure
3991 dnl to install symbolic links to the rel/abi versions of shared libraries.
3993 dnl The variable 'cf_cv_shlib_version' controls whether we use the rel or abi
3994 dnl version when making symbolic links.
3996 dnl The variable 'cf_cv_shlib_version_infix' controls whether shared library
3997 dnl version numbers are infix (ex: libncurses.<ver>.dylib) or postfix
3998 dnl (ex: libncurses.so.<ver>).
4000 dnl Some loaders leave 'so_locations' lying around. It is nice to clean up.
4001 AC_DEFUN([CF_SHARED_OPTS],
4003 AC_REQUIRE([CF_LD_RPATH_OPT])
4009 INSTALL_LIB="-m 644"
4010 : ${rel_builddir:=.}
4018 cf_cv_do_symlinks=no
4020 test "$cf_cv_enable_rpath" = yes && cf_ld_rpath_opt="$LD_RPATH_OPT"
4022 AC_MSG_CHECKING(whether to use release or ABI version in shared library file names)
4023 AC_ARG_WITH(shlib-version,
4024 [[ --with-shlib-version[={rel|abi}] use release or ABI version in shared library file names]],
4025 [test -z "$withval" && withval=auto
4028 cf_cv_shlib_version=auto
4031 cf_cv_shlib_version=$withval
4034 AC_MSG_RESULT($withval)
4035 AC_MSG_ERROR([option value must be one of: rel, abi, or auto])
4038 ],[cf_cv_shlib_version=auto])
4039 AC_MSG_RESULT($cf_cv_shlib_version)
4044 # Some less-capable ports of gcc support only -fpic
4048 if test "$GCC" = yes
4052 case "$cf_cv_system_name" in
4053 (*linux*) # e.g., PGI compiler
4059 if test "$cf_try_fPIC" = yes
4061 AC_MSG_CHECKING(which $CC option to use)
4062 cf_save_CFLAGS="$CFLAGS"
4063 for CC_SHARED_OPTS in -fPIC -fpic ''
4065 CFLAGS="$cf_save_CFLAGS $CC_SHARED_OPTS"
4066 AC_TRY_COMPILE([#include <stdio.h>],[int x = 1],[break],[])
4068 AC_MSG_RESULT($CC_SHARED_OPTS)
4069 CFLAGS="$cf_save_CFLAGS"
4072 cf_cv_shlib_version_infix=no
4074 case "$cf_cv_system_name" in
4075 (aix4.[3-9]*|aix[[5-7]]*)
4076 if test "$GCC" = yes; then
4077 CC_SHARED_OPTS='-Wl,-brtl'
4078 MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -Wl,-brtl -Wl,-blibpath:${RPATH_LIST}:/usr/lib -o [$]@'
4080 CC_SHARED_OPTS='-brtl'
4081 # as well as '-qpic=large -G' or perhaps "-bM:SRE -bnoentry -bexpall"
4082 MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -G -Wl,-brtl -Wl,-blibpath:${RPATH_LIST}:/usr/lib -o [$]@'
4086 MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -o $[@] -Xlinker -soname=`basename $[@]` -nostart -e 0'
4090 MK_SHARED_LIB=$SHELL' '$rel_builddir'/mk_shared_lib.sh [$]@ [$]{CC} [$]{CFLAGS}'
4091 RM_SHARED_OPTS="$RM_SHARED_OPTS $rel_builddir/mk_shared_lib.sh *.dll.a"
4092 cf_cv_shlib_version=cygdll
4093 cf_cv_shlib_version_infix=cygdll
4096 cat >mk_shared_lib.sh <<-CF_EOF
4099 IMPORT_LIB=\`echo "\[$]1" | sed -e 's/cyg/lib/' -e 's/[[0-9]]*\.dll[$]/.dll.a/'\`
4102 Linking shared library
4103 ** SHARED_LIB \[$]SHARED_LIB
4104 ** IMPORT_LIB \[$]IMPORT_LIB
4106 exec \[$]* ${LDFLAGS} -shared -Wl,--out-implib=\[$]{IMPORT_LIB} -Wl,--export-all-symbols -o \[$]{SHARED_LIB}
4108 chmod +x mk_shared_lib.sh
4112 MK_SHARED_LIB=$SHELL' '$rel_builddir'/mk_shared_lib.sh [$]@ [$]{CC} [$]{CFLAGS}'
4113 RM_SHARED_OPTS="$RM_SHARED_OPTS $rel_builddir/mk_shared_lib.sh *.dll.a"
4114 cf_cv_shlib_version=msysdll
4115 cf_cv_shlib_version_infix=msysdll
4118 cat >mk_shared_lib.sh <<-CF_EOF
4121 IMPORT_LIB=\`echo "\[$]1" | sed -e 's/msys-/lib/' -e 's/[[0-9]]*\.dll[$]/.dll.a/'\`
4124 Linking shared library
4125 ** SHARED_LIB \[$]SHARED_LIB
4126 ** IMPORT_LIB \[$]IMPORT_LIB
4128 exec \[$]* ${LDFLAGS} -shared -Wl,--out-implib=\[$]{IMPORT_LIB} -Wl,--export-all-symbols -o \[$]{SHARED_LIB}
4130 chmod +x mk_shared_lib.sh
4133 cf_try_cflags="no-cpp-precomp"
4134 CC_SHARED_OPTS="-dynamic"
4135 MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -dynamiclib -install_name ${libdir}/`basename $[@]` -compatibility_version ${ABI_VERSION} -current_version ${ABI_VERSION} -o $[@]'
4136 test "$cf_cv_shlib_version" = auto && cf_cv_shlib_version=abi
4137 cf_cv_shlib_version_infix=yes
4138 AC_CACHE_CHECK([if ld -search_paths_first works], cf_cv_ldflags_search_paths_first, [
4139 cf_save_LDFLAGS=$LDFLAGS
4140 LDFLAGS="$LDFLAGS -Wl,-search_paths_first"
4141 AC_TRY_LINK(, [int i;], cf_cv_ldflags_search_paths_first=yes, cf_cv_ldflags_search_paths_first=no)
4142 LDFLAGS=$cf_save_LDFLAGS])
4143 if test "$cf_cv_ldflags_search_paths_first" = yes; then
4144 LDFLAGS="$LDFLAGS -Wl,-search_paths_first"
4149 MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -Wl,-soname,'$cf_cv_shared_soname',-stats,-lc -o $[@]'
4152 # HP-UX 8.07 ld lacks "+b" option used for libdir search-list
4153 if test "$GCC" != yes; then
4156 MK_SHARED_LIB='${LD} ${LDFLAGS} -b -o $[@]'
4157 INSTALL_LIB="-m 555"
4160 # (tested with gcc 2.7.2 -- I don't have c89)
4161 if test "$GCC" = yes; then
4162 LD_SHARED_OPTS='-Xlinker +b -Xlinker ${libdir}'
4165 LD_SHARED_OPTS='-Wl,+b,${libdir}'
4167 MK_SHARED_LIB='${LD} ${LDFLAGS} +b ${libdir} -b -o $[@]'
4168 # HP-UX shared libraries must be executable, and should be
4169 # readonly to exploit a quirk in the memory manager.
4170 INSTALL_LIB="-m 555"
4173 test "$cf_cv_shlib_version" = auto && cf_cv_shlib_version=rel
4174 if test "$cf_cv_shlib_version" = rel; then
4175 cf_shared_soname='`basename $[@] .${REL_VERSION}`.${ABI_VERSION}'
4177 cf_shared_soname='`basename $[@]`'
4180 MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -Wl,-rpath,${RPATH_LIST} -Wl,-h,'$cf_shared_soname' -o $[@]'
4183 if test "$cf_cv_enable_rpath" = yes ; then
4184 EXTRA_LDFLAGS="${cf_ld_rpath_opt}\${RPATH_LIST} $EXTRA_LDFLAGS"
4186 # tested with IRIX 5.2 and 'cc'.
4187 if test "$GCC" != yes; then
4188 CC_SHARED_OPTS='-KPIC'
4189 MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -rdata_shared -soname `basename $[@]` -o $[@]'
4191 MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -Wl,-soname,`basename $[@]` -o $[@]'
4193 cf_cv_rm_so_locs=yes
4195 (linux*|gnu*|k*bsd*-gnu)
4196 if test "$DFT_LWR_MODEL" = "shared" && test -n "$LD_RPATH_OPT" ; then
4197 LOCAL_LDFLAGS="${LD_RPATH_OPT}\$(LOCAL_LIBDIR)"
4198 LOCAL_LDFLAGS2="$LOCAL_LDFLAGS"
4200 if test "$cf_cv_enable_rpath" = yes ; then
4201 EXTRA_LDFLAGS="${cf_ld_rpath_opt}\${RPATH_LIST} $EXTRA_LDFLAGS"
4204 MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -Wl,-soname,'$cf_cv_shared_soname',-stats,-lc -o $[@]'
4207 cf_cv_shlib_version=msvcdll
4208 cf_cv_shlib_version_infix=msvcdll
4211 if test "$DFT_LWR_MODEL" = "shared" ; then
4212 LOCAL_LDFLAGS="-link -dll"
4213 LOCAL_LDFLAGS2="$LOCAL_LDFLAGS"
4214 EXTRA_LDFLAGS="-link -dll $EXTRA_LDFLAGS"
4217 MK_SHARED_LIB=$SHELL' '$rel_builddir'/mk_shared_lib.sh [$]@ ${LD} [$]{CFLAGS}'
4218 RM_SHARED_OPTS="$RM_SHARED_OPTS $rel_builddir/mk_shared_lib.sh *.dll.lib"
4219 cat >mk_shared_lib.sh <<-CF_EOF
4222 IMPORT_LIB=\`echo "\[$]1" | sed -e 's/[[0-9]]*\.dll[$]/.dll.lib/'\`
4227 Linking shared library
4228 ** SHARED LIB \$SHARED_LIB
4229 ** IMPORT_LIB \$IMPORT_LIB
4231 args=\$(echo \[$]* | sed -E "s#-l(\w*)#\1.dll.lib#g" | sed -E "s#-L(\w*)#-LIBPATH:\1#g")
4232 exec \$my_ld -DLL -IMPLIB:"\${IMPORT_LIB}" -OUT:"\${SHARED_LIB}" ${LDFLAGS} \$args
4233 mv "\${IMPORT_LIB}" "\${IMPORT_LIB}"
4235 chmod +x mk_shared_lib.sh
4236 cat >mk_prog.sh <<-CF_EOF
4239 # Ignore first argument (compiler) and use LD (link.exe) unconditionally
4242 ldopts=("/subsystem:console")
4245 while test \[$]# -gt 0; do
4248 # ignore -link argument
4250 -M[[TD]] | -M[[TD]]d)
4251 # ignore runtime-library option
4266 libs+=("\`echo \"\[$]1\" | sed \"s/^-l//\"\`")
4269 ldopts+=("\`echo \"\[$]1\" | sed \"s/^-L/-LIBPATH:/\"\`")
4275 for linkarg in \`echo '\[$]1' | sed -e 's/-Wl,//' -e 's/,/ /'\`; do
4276 ldopts+=("\[$]{linkarg}")
4284 ldopts+=("-out:\[$]1")
4293 if [[ "\$isdll" -ne 0 ]]; then
4294 for lib in \[$]{libs[[*]]}; do
4295 ldopts+=("\[$]lib.dll.lib")
4298 for lib in \[$]{libs[[*]]}; do
4299 ldopts+=("\[$]lib.lib")
4304 ** ld options: "\[$]{ldopts[[@]]}"
4306 exec \[$]LD \[$]{ldopts[[@]]}
4309 LINK_PROGS="$SHELL ${rel_builddir}/mk_prog.sh"
4310 LINK_TESTS="$SHELL ${rel_builddir}/mk_prog.sh"
4313 cf_cv_shlib_version=mingw
4314 cf_cv_shlib_version_infix=mingw
4317 if test "$DFT_LWR_MODEL" = "shared" ; then
4318 LOCAL_LDFLAGS="-Wl,--enable-auto-import"
4319 LOCAL_LDFLAGS2="$LOCAL_LDFLAGS"
4320 EXTRA_LDFLAGS="-Wl,--enable-auto-import $EXTRA_LDFLAGS"
4323 MK_SHARED_LIB=$SHELL' '$rel_builddir'/mk_shared_lib.sh [$]@ [$]{CC} [$]{CFLAGS}'
4324 RM_SHARED_OPTS="$RM_SHARED_OPTS $rel_builddir/mk_shared_lib.sh *.dll.a"
4325 cat >mk_shared_lib.sh <<-CF_EOF
4328 IMPORT_LIB=\`echo "\[$]1" | sed -e 's/[[0-9]]*\.dll[$]/.dll.a/'\`
4331 Linking shared library
4332 ** SHARED_LIB \[$]SHARED_LIB
4333 ** IMPORT_LIB \[$]IMPORT_LIB
4335 exec \[$]* ${LDFLAGS} -shared -Wl,--enable-auto-import,--out-implib=\[$]{IMPORT_LIB} -Wl,--export-all-symbols -o \[$]{SHARED_LIB}
4337 chmod +x mk_shared_lib.sh
4339 (openbsd[[2-9]].*|mirbsd*)
4340 if test "$DFT_LWR_MODEL" = "shared" && test -n "$LD_RPATH_OPT" ; then
4341 LOCAL_LDFLAGS="${LD_RPATH_OPT}\$(LOCAL_LIBDIR)"
4342 LOCAL_LDFLAGS2="$LOCAL_LDFLAGS"
4344 if test "$cf_cv_enable_rpath" = yes ; then
4345 EXTRA_LDFLAGS="${cf_ld_rpath_opt}\${RPATH_LIST} $EXTRA_LDFLAGS"
4347 CC_SHARED_OPTS="$CC_SHARED_OPTS -DPIC"
4349 MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -Wl,-Bshareable,-soname,'$cf_cv_shared_soname',-stats,-lc -o $[@]'
4353 MK_SHARED_LIB='${LD} -Wshared -Weld=-export_all -o $[@]'
4357 MK_SHARED_LIB='${LD} -Wshared -Wxld=-export_all -o $[@]'
4359 (nto-qnx*|openbsd*|freebsd[[12]].*)
4360 CC_SHARED_OPTS="$CC_SHARED_OPTS -DPIC"
4361 MK_SHARED_LIB='${LD} ${LDFLAGS} -Bshareable -o $[@]'
4362 test "$cf_cv_shlib_version" = auto && cf_cv_shlib_version=rel
4364 (dragonfly*|freebsd*)
4365 CC_SHARED_OPTS="$CC_SHARED_OPTS -DPIC"
4366 if test "$DFT_LWR_MODEL" = "shared" && test "$cf_cv_enable_rpath" = yes ; then
4367 LOCAL_LDFLAGS="${cf_ld_rpath_opt}\$(LOCAL_LIBDIR)"
4368 LOCAL_LDFLAGS2="${cf_ld_rpath_opt}\${RPATH_LIST} $LOCAL_LDFLAGS"
4369 EXTRA_LDFLAGS="${cf_ld_rpath_opt}\${RPATH_LIST} $EXTRA_LDFLAGS"
4372 MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -Wl,-soname,'$cf_cv_shared_soname',-stats,-lc -o $[@]'
4375 CC_SHARED_OPTS="$CC_SHARED_OPTS -DPIC"
4376 if test "$DFT_LWR_MODEL" = "shared" && test "$cf_cv_enable_rpath" = yes ; then
4377 LOCAL_LDFLAGS="${cf_ld_rpath_opt}\$(LOCAL_LIBDIR)"
4378 LOCAL_LDFLAGS2="$LOCAL_LDFLAGS"
4379 EXTRA_LDFLAGS="${cf_ld_rpath_opt}\${RPATH_LIST} $EXTRA_LDFLAGS"
4380 if test "$cf_cv_shlib_version" = auto; then
4381 if test -f /usr/libexec/ld.elf_so; then
4382 cf_cv_shlib_version=abi
4384 cf_cv_shlib_version=rel
4388 MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -Wl,-soname,'$cf_cv_shared_soname' -o $[@]'
4390 MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -o $[@]'
4394 # tested with OSF/1 V3.2 and 'cc'
4395 # tested with OSF/1 V3.2 and gcc 2.6.3 (but the c++ demo didn't
4396 # link with shared libs).
4397 MK_SHARED_LIB='${LD} ${LDFLAGS} -set_version ${REL_VERSION}:${ABI_VERSION} -expect_unresolved "*" -shared -soname `basename $[@]`'
4400 MK_SHARED_LIB="${MK_SHARED_LIB} -msym"
4403 MK_SHARED_LIB="${MK_SHARED_LIB}"' -o $[@]'
4404 if test "$DFT_LWR_MODEL" = "shared" && test -n "$LD_RPATH_OPT" ; then
4405 LOCAL_LDFLAGS="${LD_RPATH_OPT}\$(LOCAL_LIBDIR)"
4406 LOCAL_LDFLAGS2="$LOCAL_LDFLAGS"
4408 cf_cv_rm_so_locs=yes
4410 (sco3.2v5*) # also uw2* and UW7: hops 13-Apr-98
4411 # tested with osr5.0.5
4412 if test "$GCC" != yes; then
4413 CC_SHARED_OPTS='-belf -KPIC'
4415 MK_SHARED_LIB='${LD} ${LDFLAGS} -dy -G -h `basename $[@] .${REL_VERSION}`.${ABI_VERSION} -o [$]@'
4416 if test "$cf_cv_enable_rpath" = yes ; then
4417 # only way is to set LD_RUN_PATH but no switch for it
4420 test "$cf_cv_shlib_version" = auto && cf_cv_shlib_version=rel
4421 LINK_PROGS='LD_RUN_PATH=${libdir}'
4422 LINK_TESTS='Pwd=`pwd`;LD_RUN_PATH=`dirname $${Pwd}`/lib'
4425 # tested with SunOS 4.1.1 and gcc 2.7.0
4426 if test "$GCC" != yes; then
4427 CC_SHARED_OPTS='-KPIC'
4429 MK_SHARED_LIB='${LD} ${LDFLAGS} -assert pure-text -o $[@]'
4430 test "$cf_cv_shlib_version" = auto && cf_cv_shlib_version=rel
4433 # tested with SunOS 5.5.1 (solaris 2.5.1) and gcc 2.7.2
4434 # tested with SunOS 5.10 (solaris 10) and gcc 3.4.3
4435 if test "$DFT_LWR_MODEL" = "shared" ; then
4436 LOCAL_LDFLAGS="-R \$(LOCAL_LIBDIR):\${libdir}"
4437 LOCAL_LDFLAGS2="$LOCAL_LDFLAGS"
4439 if test "$cf_cv_enable_rpath" = yes ; then
4440 EXTRA_LDFLAGS="-R \${libdir} $EXTRA_LDFLAGS"
4443 if test "$GCC" != yes; then
4444 cf_save_CFLAGS="$CFLAGS"
4445 for cf_shared_opts in -xcode=pic32 -xcode=pic13 -KPIC -Kpic -O
4447 CFLAGS="$cf_shared_opts $cf_save_CFLAGS"
4448 AC_TRY_COMPILE([#include <stdio.h>],[printf("Hello\\n");],[break])
4450 CFLAGS="$cf_save_CFLAGS"
4451 CC_SHARED_OPTS=$cf_shared_opts
4452 MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -dy -G -h '$cf_cv_shared_soname' -o $[@]'
4454 MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -dy -G -h '$cf_cv_shared_soname' -o $[@]'
4457 (sysv5uw7*|unix_sv*)
4458 # tested with UnixWare 7.1.0 (gcc 2.95.2 and cc)
4459 if test "$GCC" != yes; then
4460 CC_SHARED_OPTS='-KPIC'
4462 MK_SHARED_LIB='${LD} ${LDFLAGS} -d y -G -o [$]@'
4465 CC_SHARED_OPTS='unknown'
4466 MK_SHARED_LIB='echo unknown'
4470 # This works if the last tokens in $MK_SHARED_LIB are the -o target.
4471 case "$cf_cv_shlib_version" in
4473 case "$MK_SHARED_LIB" in
4475 test "$cf_cv_do_symlinks" = no && cf_cv_do_symlinks=yes
4478 AC_MSG_WARN(ignored --with-shlib-version)
4484 if test -n "$cf_try_cflags"
4486 cat > conftest.$ac_ext <<EOF
4487 #line __oline__ "${as_me:-configure}"
4489 int main(int argc, char *argv[[]])
4492 return (argv[[argc-1]] == 0) ;
4495 cf_save_CFLAGS="$CFLAGS"
4496 for cf_opt in $cf_try_cflags
4498 CFLAGS="$cf_save_CFLAGS -$cf_opt"
4499 AC_MSG_CHECKING(if CFLAGS option -$cf_opt works)
4500 if AC_TRY_EVAL(ac_compile); then
4502 cf_save_CFLAGS="$CFLAGS"
4507 CFLAGS="$cf_save_CFLAGS"
4511 # RPATH_LIST is a colon-separated list of directories
4512 test -n "$cf_ld_rpath_opt" && MK_SHARED_LIB="$MK_SHARED_LIB $cf_ld_rpath_opt\${RPATH_LIST}"
4513 test -z "$RPATH_LIST" && RPATH_LIST="\${libdir}"
4515 test "$cf_cv_rm_so_locs" = yes && RM_SHARED_OPTS="$RM_SHARED_OPTS so_locations"
4517 CF_VERBOSE(CC_SHARED_OPTS: $CC_SHARED_OPTS)
4518 CF_VERBOSE(MK_SHARED_LIB: $MK_SHARED_LIB)
4520 AC_SUBST(CC_SHARED_OPTS)
4521 AC_SUBST(LD_RPATH_OPT)
4522 AC_SUBST(LD_SHARED_OPTS)
4523 AC_SUBST(MK_SHARED_LIB)
4524 AC_SUBST(RM_SHARED_OPTS)
4526 AC_SUBST(LINK_PROGS)
4527 AC_SUBST(LINK_TESTS)
4529 AC_SUBST(EXTRA_LDFLAGS)
4530 AC_SUBST(LOCAL_LDFLAGS)
4531 AC_SUBST(LOCAL_LDFLAGS2)
4533 AC_SUBST(INSTALL_LIB)
4534 AC_SUBST(RPATH_LIST)
4536 dnl ---------------------------------------------------------------------------
4537 dnl CF_SHARED_SONAME version: 3 updated: 2008/09/08 18:34:43
4538 dnl ----------------
4539 dnl utility macro for CF_SHARED_OPTS, constructs "$cf_cv_shared_soname" for
4540 dnl substitution into MK_SHARED_LIB string for the "-soname" (or similar)
4543 dnl $1 is the default that should be used for "$cf_cv_shlib_version".
4544 dnl If missing, use "rel".
4545 define([CF_SHARED_SONAME],
4547 test "$cf_cv_shlib_version" = auto && cf_cv_shlib_version=ifelse($1,,rel,$1)
4548 if test "$cf_cv_shlib_version" = rel; then
4549 cf_cv_shared_soname='`basename $[@] .${REL_VERSION}`.${ABI_VERSION}'
4551 cf_cv_shared_soname='`basename $[@]`'
4554 dnl ---------------------------------------------------------------------------
4555 dnl CF_STRIP_G_OPT version: 4 updated: 2021/01/02 09:31:20
4557 dnl Remove "-g" option from the compiler options
4558 AC_DEFUN([CF_STRIP_G_OPT],
4559 [$1=`echo "${$1}" | CF__SED_TRIMBLANKS(-e 's%-g %%' -e 's%-g$%%')`])dnl
4560 dnl ---------------------------------------------------------------------------
4561 dnl CF_SUBDIR_PATH version: 7 updated: 2014/12/04 04:33:06
4563 dnl Construct a search-list for a nonstandard header/lib-file
4564 dnl $1 = the variable to return as result
4565 dnl $2 = the package name
4566 dnl $3 = the subdirectory, e.g., bin, include or lib
4567 AC_DEFUN([CF_SUBDIR_PATH],
4571 CF_ADD_SUBDIR_PATH($1,$2,$3,$prefix,NONE)
4573 for cf_subdir_prefix in \
4581 CF_ADD_SUBDIR_PATH($1,$2,$3,$cf_subdir_prefix,$prefix)
4584 dnl ---------------------------------------------------------------------------
4585 dnl CF_TERM_HEADER version: 6 updated: 2021/01/02 09:31:20
4587 dnl Look for term.h, which is part of X/Open curses. It defines the interface
4588 dnl to terminfo database. Usually it is in the same include-path as curses.h,
4589 dnl but some packagers change this, breaking various applications.
4590 AC_DEFUN([CF_TERM_HEADER],[
4591 AC_CACHE_CHECK(for terminfo header, cf_cv_term_header,[
4592 case "${cf_cv_ncurses_header}" in
4593 (*/ncurses.h|*/ncursesw.h)
4594 cf_term_header=`echo "$cf_cv_ncurses_header" | sed -e 's%ncurses[[^.]]*\.h$%term.h%'`
4597 cf_term_header=term.h
4601 for cf_test in $cf_term_header "ncurses/term.h" "ncursesw/term.h"
4603 AC_TRY_COMPILE([#include <stdio.h>
4604 #include <${cf_cv_ncurses_header:-curses.h}>
4606 ],[int x = auto_left_margin; (void)x],[
4607 cf_cv_term_header="$cf_test"],[
4608 cf_cv_term_header=unknown
4610 test "$cf_cv_term_header" != unknown && break
4614 # Set definitions to allow ifdef'ing to accommodate subdirectories
4616 case "$cf_cv_term_header" in
4618 AC_DEFINE(HAVE_TERM_H,1,[Define to 1 if we have term.h])
4622 case "$cf_cv_term_header" in
4624 AC_DEFINE(HAVE_NCURSES_TERM_H,1,[Define to 1 if we have ncurses/term.h])
4627 AC_DEFINE(HAVE_NCURSESW_TERM_H,1,[Define to 1 if we have ncursesw/term.h])
4631 dnl ---------------------------------------------------------------------------
4632 dnl CF_TOP_BUILDDIR version: 2 updated: 2013/07/27 17:38:32
4634 dnl Define a top_builddir symbol, for applications that need an absolute path.
4635 AC_DEFUN([CF_TOP_BUILDDIR],
4637 top_builddir=ifelse($1,,`pwd`,$1)
4638 AC_SUBST(top_builddir)
4640 dnl ---------------------------------------------------------------------------
4641 dnl CF_TRY_XOPEN_SOURCE version: 4 updated: 2022/09/10 15:16:16
4642 dnl -------------------
4643 dnl If _XOPEN_SOURCE is not defined in the compile environment, check if we
4644 dnl can define it successfully.
4645 AC_DEFUN([CF_TRY_XOPEN_SOURCE],[
4646 AC_CACHE_CHECK(if we should define _XOPEN_SOURCE,cf_cv_xopen_source,[
4647 AC_TRY_COMPILE(CF__XOPEN_SOURCE_HEAD,CF__XOPEN_SOURCE_BODY,
4648 [cf_cv_xopen_source=no],
4649 [cf_save="$CPPFLAGS"
4650 CF_APPEND_TEXT(CPPFLAGS,-D_XOPEN_SOURCE=$cf_XOPEN_SOURCE)
4651 AC_TRY_COMPILE(CF__XOPEN_SOURCE_HEAD,CF__XOPEN_SOURCE_BODY,
4652 [cf_cv_xopen_source=no],
4653 [cf_cv_xopen_source=$cf_XOPEN_SOURCE])
4658 if test "$cf_cv_xopen_source" != no ; then
4659 CF_REMOVE_DEFINE(CFLAGS,$CFLAGS,_XOPEN_SOURCE)
4660 CF_REMOVE_DEFINE(CPPFLAGS,$CPPFLAGS,_XOPEN_SOURCE)
4661 cf_temp_xopen_source="-D_XOPEN_SOURCE=$cf_cv_xopen_source"
4662 CF_APPEND_CFLAGS($cf_temp_xopen_source)
4665 dnl ---------------------------------------------------------------------------
4666 dnl CF_UPPER version: 5 updated: 2001/01/29 23:40:59
4668 dnl Make an uppercase version of a variable
4669 dnl $1=uppercase($2)
4670 AC_DEFUN([CF_UPPER],
4672 $1=`echo "$2" | sed y%abcdefghijklmnopqrstuvwxyz./-%ABCDEFGHIJKLMNOPQRSTUVWXYZ___%`
4674 dnl ---------------------------------------------------------------------------
4675 dnl CF_UTF8_LIB version: 10 updated: 2023/01/11 04:05:23
4677 dnl Check for multibyte support, and if not found, utf8 compatibility library
4678 AC_DEFUN([CF_UTF8_LIB],
4680 AC_HAVE_HEADERS(wchar.h)
4681 AC_CACHE_CHECK(for multibyte character support,cf_cv_utf8_lib,[
4682 cf_save_LIBS="$LIBS"
4684 $ac_includes_default
4689 [cf_cv_utf8_lib=yes],
4691 #include <libutf8.h>],[putwc(0,0);],utf8,
4692 [cf_cv_utf8_lib=add-on],
4693 [cf_cv_utf8_lib=no])
4696 # HAVE_LIBUTF8_H is used by ncurses if curses.h is shared between
4698 if test "$cf_cv_utf8_lib" = "add-on" ; then
4699 AC_DEFINE(HAVE_LIBUTF8_H,1,[Define to 1 if we should include libutf8.h])
4700 CF_ADD_INCDIR($cf_cv_header_path_utf8)
4701 CF_ADD_LIBDIR($cf_cv_library_path_utf8)
4702 CF_ADD_LIBS($cf_cv_library_file_utf8)
4705 dnl ---------------------------------------------------------------------------
4706 dnl CF_VERBOSE version: 3 updated: 2007/07/29 09:55:12
4708 dnl Use AC_VERBOSE w/o the warnings
4709 AC_DEFUN([CF_VERBOSE],
4710 [test -n "$verbose" && echo " $1" 1>&AC_FD_MSG
4713 dnl ---------------------------------------------------------------------------
4714 dnl CF_WEAK_SYMBOLS version: 1 updated: 2008/08/16 19:18:06
4716 dnl Check for compiler-support for weak symbols.
4717 dnl This works with "recent" gcc.
4718 AC_DEFUN([CF_WEAK_SYMBOLS],[
4719 AC_CACHE_CHECK(if $CC supports weak symbols,cf_cv_weak_symbols,[
4722 #include <stdio.h>],
4724 #if defined(__GNUC__)
4725 # if defined __USE_ISOC99
4726 # define _cat_pragma(exp) _Pragma(#exp)
4727 # define _weak_pragma(exp) _cat_pragma(weak name)
4729 # define _weak_pragma(exp)
4731 # define _declare(name) __extension__ extern __typeof__(name) name
4732 # define weak_symbol(name) _weak_pragma(name) _declare(name) __attribute__((weak))
4736 ],[cf_cv_weak_symbols=yes],[cf_cv_weak_symbols=no])
4739 dnl ---------------------------------------------------------------------------
4740 dnl CF_WITH_ADA_COMPILER version: 3 updated: 2023/10/28 11:59:01
4741 dnl --------------------
4742 dnl Command-line option to specify the Ada95 compiler.
4743 AC_DEFUN([CF_WITH_ADA_COMPILER],[
4744 AC_MSG_CHECKING(for Ada95 compiler)
4745 AC_ARG_WITH(ada-compiler,
4746 [[ --with-ada-compiler[=CMD] use CMD as Ada95 compiler (default: gnatmake)]],
4747 [cf_ada_compiler=$withval],
4748 [cf_ada_compiler=gnatmake])
4749 AC_SUBST(cf_ada_compiler)
4750 AC_MSG_RESULT($cf_ada_compiler)
4752 dnl ---------------------------------------------------------------------------
4753 dnl CF_WITH_ADA_INCLUDE version: 3 updated: 2023/10/28 11:59:01
4754 dnl -------------------
4755 dnl Command-line option to specify where Ada includes will install.
4756 AC_DEFUN([CF_WITH_ADA_INCLUDE],[
4757 AC_MSG_CHECKING(for Ada95 include directory)
4758 CF_WITH_PATH(ada-include,
4759 [ --with-ada-include=DIR find Ada95 includes in DIR],
4761 PREFIX/share/ada/adainclude,
4762 [$]prefix/share/ada/adainclude)
4763 AC_SUBST(ADA_INCLUDE)
4764 AC_MSG_RESULT($ADA_INCLUDE)
4766 dnl ---------------------------------------------------------------------------
4767 dnl CF_WITH_ADA_LIBNAME version: 2 updated: 2023/10/28 11:59:01
4768 dnl -------------------
4769 dnl CF_WITH_ADA_LIBNAME
4770 dnl -------------------
4771 dnl Command-line option to specify how to name the resulting Ada library.
4772 dnl $1 = default value
4773 AC_DEFUN([CF_WITH_ADA_LIBNAME],[
4774 AC_MSG_CHECKING(for Ada95 curses library name)
4775 AC_ARG_WITH(ada-libname,
4776 [ --with-ada-libname=XXX use XXX as Ada95 library name],
4777 ADA_LIBNAME=[$]withval,
4779 case "x$ADA_LIBNAME" in
4784 AC_SUBST(ADA_LIBNAME)
4785 AC_MSG_RESULT($ADA_LIBNAME)
4787 dnl ---------------------------------------------------------------------------
4788 dnl CF_WITH_ADA_OBJECTS version: 3 updated: 2023/10/28 11:59:01
4789 dnl -------------------
4790 dnl Command-line option to specify where Ada objects will install.
4791 AC_DEFUN([CF_WITH_ADA_OBJECTS],[
4792 AC_MSG_CHECKING(for Ada95 object directory)
4793 CF_WITH_PATH(ada-objects,
4794 [ --with-ada-objects=DIR find Ada95 objects in DIR],
4796 PREFIX/lib/ada/adalib,
4797 [$]prefix/lib/ada/adalib)
4798 AC_SUBST(ADA_OBJECTS)
4799 AC_MSG_RESULT($ADA_OBJECTS)
4801 dnl ---------------------------------------------------------------------------
4802 dnl CF_WITH_ADA_SHAREDLIB version: 6 updated: 2023/10/28 11:59:01
4803 dnl ---------------------
4804 dnl Command-line option to specify if an Ada95 shared library should be built,
4805 dnl and optionally what its soname should be.
4806 AC_DEFUN([CF_WITH_ADA_SHAREDLIB],[
4807 AC_REQUIRE([CF_GNAT_PROJECTS])
4808 AC_MSG_CHECKING(whether to build an Ada95 shared library)
4809 AC_ARG_WITH(ada-sharedlib,
4810 [ --with-ada-sharedlib build Ada95 shared library; requires GNAT project support],
4811 [with_ada_sharedlib=$withval],
4812 [with_ada_sharedlib=no])
4813 cf_ada_sharedlib_warn=no
4815 if test "x$with_ada_sharedlib" != xno
4817 if test "x$cf_gnat_projects" != xyes
4819 with_ada_sharedlib=no
4820 cf_ada_sharedlib_warn=yes
4824 AC_MSG_RESULT($with_ada_sharedlib)
4825 if test "x$cf_ada_sharedlib_warn" != xno
4827 AC_MSG_WARN(disabling Ada95 shared library since GNAT projects are not supported)
4830 ADA_SHAREDLIB='lib$(LIB_NAME).so.1'
4831 MAKE_ADA_SHAREDLIB="#"
4833 if test "x$with_ada_sharedlib" != xno
4836 if test "x$with_ada_sharedlib" != xyes
4838 ADA_SHAREDLIB="$with_ada_sharedlib"
4842 AC_SUBST(ADA_SHAREDLIB)
4843 AC_SUBST(MAKE_ADA_SHAREDLIB)
4845 dnl ---------------------------------------------------------------------------
4846 dnl CF_WITH_CURSES_DIR version: 4 updated: 2021/01/02 19:22:58
4847 dnl ------------------
4848 dnl Wrapper for AC_ARG_WITH to specify directory under which to look for curses
4850 AC_DEFUN([CF_WITH_CURSES_DIR],[
4852 AC_MSG_CHECKING(for specific curses-directory)
4853 AC_ARG_WITH(curses-dir,
4854 [ --with-curses-dir=DIR directory in which (n)curses is installed],
4855 [cf_cv_curses_dir=$withval],
4856 [cf_cv_curses_dir=no])
4857 AC_MSG_RESULT($cf_cv_curses_dir)
4859 if test -n "$cf_cv_curses_dir" && test "$cf_cv_curses_dir" != "no"
4861 CF_PATH_SYNTAX(withval)
4862 if test -d "$cf_cv_curses_dir"
4864 CF_ADD_INCDIR($cf_cv_curses_dir/include)
4865 CF_ADD_LIBDIR($cf_cv_curses_dir/lib)
4869 dnl ---------------------------------------------------------------------------
4870 dnl CF_WITH_LIB_PREFIX version: 2 updated: 2021/01/01 16:53:59
4871 dnl ------------------
4872 dnl Allow the library-prefix to be overridden. OS/2 EMX originally had no
4873 dnl "lib" prefix, e.g., because it used the dll naming convention.
4875 dnl $1 = variable to set
4876 AC_DEFUN([CF_WITH_LIB_PREFIX],
4878 AC_MSG_CHECKING(if you want to have a library-prefix)
4879 AC_ARG_WITH(lib-prefix,
4880 [ --with-lib-prefix override library-prefix],
4881 [with_lib_prefix=$withval],
4882 [with_lib_prefix=auto])
4883 AC_MSG_RESULT($with_lib_prefix)
4885 if test "$with_lib_prefix" = auto
4888 elif test "$with_lib_prefix" = no
4892 LIB_PREFIX=$with_lib_prefix
4895 dnl ---------------------------------------------------------------------------
4896 dnl CF_WITH_PATH version: 12 updated: 2021/09/04 06:35:04
4898 dnl Wrapper for AC_ARG_WITH to ensure that user supplies a pathname, not just
4899 dnl defaulting to yes/no.
4901 dnl $1 = option name
4903 dnl $3 = environment variable to set
4904 dnl $4 = default value, shown in the help-message, must be a constant
4905 dnl $5 = default value, if it is an expression & cannot be in the help-message
4907 AC_DEFUN([CF_WITH_PATH],
4908 [AC_ARG_WITH($1,[$2 ](default: ifelse([$4],,empty,[$4])),,
4909 ifelse([$4],,[withval="${$3}"],[withval="${$3:-ifelse([$5],,[$4],[$5])}"]))dnl
4910 if ifelse([$5],,true,[test -n "$5"]) ; then
4911 CF_PATH_SYNTAX(withval)
4916 dnl ---------------------------------------------------------------------------
4917 dnl CF_WITH_PKG_CONFIG_LIBDIR version: 21 updated: 2023/01/22 13:37:42
4918 dnl -------------------------
4919 dnl Allow the choice of the pkg-config library directory to be overridden.
4921 dnl pkg-config uses a search-list built from these colon-separated lists of
4923 dnl a) $PKG_CONFIG_PATH (tested first, added if set)
4924 dnl b) $PKG_CONFIG_LIBDIR (tested second, added if set)
4925 dnl c) builtin-list (added if $PKG_CONFIG_LIBDIR is not set)
4927 dnl pkgconf (used with some systems such as FreeBSD in place of pkg-config)
4928 dnl optionally ignores $PKG_CONFIG_LIBDIR. Very old versions of pkg-config,
4929 dnl e.g., Solaris 10 also do not recognize $PKG_CONFIG_LIBDIR.
4930 AC_DEFUN([CF_WITH_PKG_CONFIG_LIBDIR],[
4932 case "$PKG_CONFIG" in
4934 AC_MSG_CHECKING(for pkg-config library directory)
4937 AC_MSG_CHECKING(for $PKG_CONFIG library directory)
4941 # if $PKG_CONFIG_LIBDIR is set, try to use that
4942 if test -n "$PKG_CONFIG_PATH"; then
4943 cf_search_path=`echo "$PKG_CONFIG_PATH" | sed -e 's/:/ /g' -e 's,^[[ ]]*,,' -e 's,[[ ]]*$,,'`
4944 elif test -n "$PKG_CONFIG_LIBDIR"; then
4945 cf_search_path=`echo "$PKG_CONFIG_LIBDIR" | sed -e 's/:/ /g' -e 's,^[[ ]]*,,' -e 's,[[ ]]*$,,'`
4950 # if the option is used, let that override. otherwise default to "libdir"
4951 AC_ARG_WITH(pkg-config-libdir,
4952 [ --with-pkg-config-libdir=XXX use given directory for installing pc-files],
4953 [cf_search_path=$withval],
4954 [test "x$PKG_CONFIG" != xnone && test -z "$cf_search_path" && cf_search_path=libdir])
4956 case "x$cf_search_path" in
4958 PKG_CONFIG_LIBDIR='${libdir}/pkgconfig'
4959 AC_MSG_RESULT($PKG_CONFIG_LIBDIR)
4968 PKG_CONFIG_LIBDIR="$cf_search_path"
4969 AC_MSG_RESULT($PKG_CONFIG_LIBDIR)
4975 # Look for the library directory using the same prefix as the executable
4976 AC_MSG_CHECKING(for search-list)
4977 if test "x$PKG_CONFIG" != xnone
4979 # works for pkg-config since version 0.24 (2009)
4980 # works for pkgconf since version 0.8.3 (2012)
4981 for cf_pkg_program in \
4982 `echo "$PKG_CONFIG" | sed -e 's,^.*/,,'` \
4986 cf_search_path=`"$PKG_CONFIG" --variable=pc_path "$cf_pkg_program" 2>/dev/null | tr : ' '`
4987 test -n "$cf_search_path" && break
4990 # works for pkg-config since import in 2005 of original 2001 HP code.
4991 test -z "$cf_search_path" && \
4993 "$PKG_CONFIG" --debug --exists no-such-package 2>&1 | $AWK "\
4994 /^Scanning directory (#[1-9][0-9]* )?'.*'$/{ \
4995 sub(\"^[[^']]*'\",\"\"); \
4996 sub(\"'.*\",\"\"); \
4997 printf \" %s\", \\[$]0; } \
5002 AC_MSG_RESULT($cf_search_path)
5005 AC_MSG_ERROR(Unexpected option value: $cf_search_path)
5009 if test -n "$cf_search_path"
5011 AC_MSG_CHECKING(for first directory)
5012 cf_pkg_config_path=none
5013 for cf_config in $cf_search_path
5015 if test -d "$cf_config"
5017 cf_pkg_config_path=$cf_config
5021 AC_MSG_RESULT($cf_pkg_config_path)
5023 if test "x$cf_pkg_config_path" != xnone ; then
5024 # limit this to the first directory found
5025 PKG_CONFIG_LIBDIR="$cf_pkg_config_path"
5028 if test -z "$PKG_CONFIG_LIBDIR" && test -n "$cf_search_path"
5030 AC_MSG_CHECKING(for workaround)
5031 if test "$prefix" = "NONE" ; then
5032 cf_prefix="$ac_default_prefix"
5036 eval cf_libdir=$libdir
5037 cf_libdir=`echo "$cf_libdir" | sed -e "s,^NONE,$cf_prefix,"`
5039 for cf_config in $cf_search_path
5042 $cf_libdir/pkgconfig)
5043 PKG_CONFIG_LIBDIR=$cf_libdir/pkgconfig
5047 test -z "$cf_backup" && cf_backup=$cf_config
5051 test -z "$PKG_CONFIG_LIBDIR" && PKG_CONFIG_LIBDIR=$cf_backup
5052 AC_MSG_RESULT($PKG_CONFIG_LIBDIR)
5056 AC_SUBST(PKG_CONFIG_LIBDIR)
5058 dnl ---------------------------------------------------------------------------
5059 dnl CF_WITH_PTHREAD version: 7 updated: 2015/04/18 08:56:57
5061 dnl Check for POSIX thread library.
5062 AC_DEFUN([CF_WITH_PTHREAD],
5064 AC_MSG_CHECKING(if you want to link with the pthread library)
5065 AC_ARG_WITH(pthread,
5066 [ --with-pthread use POSIX thread library],
5067 [with_pthread=$withval],
5069 AC_MSG_RESULT($with_pthread)
5071 if test "$with_pthread" != no ; then
5072 AC_CHECK_HEADER(pthread.h,[
5073 AC_DEFINE(HAVE_PTHREADS_H,1,[Define to 1 if we have pthreads.h header])
5075 for cf_lib_pthread in pthread c_r
5077 AC_MSG_CHECKING(if we can link with the $cf_lib_pthread library)
5078 cf_save_LIBS="$LIBS"
5079 CF_ADD_LIB($cf_lib_pthread)
5081 #include <pthread.h>
5083 int rc = pthread_create(0,0,0,0);
5084 int r2 = pthread_mutexattr_settype(0, 0);
5085 ],[with_pthread=yes],[with_pthread=no])
5086 LIBS="$cf_save_LIBS"
5087 AC_MSG_RESULT($with_pthread)
5088 test "$with_pthread" = yes && break
5091 if test "$with_pthread" = yes ; then
5092 CF_ADD_LIB($cf_lib_pthread)
5093 AC_DEFINE(HAVE_LIBPTHREADS,1,[Define to 1 if we have pthreads library])
5095 AC_MSG_ERROR(Cannot link with pthread library)
5100 dnl ---------------------------------------------------------------------------
5101 dnl CF_WITH_SYSTYPE version: 1 updated: 2013/01/26 16:26:12
5103 dnl For testing, override the derived host system-type which is used to decide
5104 dnl things such as the linker commands used to build shared libraries. This is
5105 dnl normally chosen automatically based on the type of system which you are
5106 dnl building on. We use it for testing the configure script.
5108 dnl This is different from the --host option: it is used only for testing parts
5109 dnl of the configure script which would not be reachable with --host since that
5110 dnl relies on the build environment being real, rather than mocked up.
5111 AC_DEFUN([CF_WITH_SYSTYPE],[
5112 CF_CHECK_CACHE([AC_CANONICAL_SYSTEM])
5113 AC_ARG_WITH(system-type,
5114 [ --with-system-type=XXX test: override derived host system-type],
5115 [AC_MSG_WARN(overriding system type to $withval)
5116 cf_cv_system_name=$withval
5120 dnl ---------------------------------------------------------------------------
5121 dnl CF_XOPEN_SOURCE version: 67 updated: 2023/09/06 18:55:27
5123 dnl Try to get _XOPEN_SOURCE defined properly that we can use POSIX functions,
5124 dnl or adapt to the vendor's definitions to get equivalent functionality,
5125 dnl without losing the common non-POSIX features.
5128 dnl $1 is the nominal value for _XOPEN_SOURCE
5129 dnl $2 is the nominal value for _POSIX_C_SOURCE
5131 dnl The default case prefers _XOPEN_SOURCE over _POSIX_C_SOURCE if the
5132 dnl implementation predefines it, because X/Open and most implementations agree
5133 dnl that the latter is a legacy or "aligned" value.
5135 dnl Because _XOPEN_SOURCE is preferred, if defining _POSIX_C_SOURCE turns
5136 dnl that off, then refrain from setting _POSIX_C_SOURCE explicitly.
5139 dnl https://pubs.opengroup.org/onlinepubs/007904975/functions/xsh_chap02_02.html
5140 dnl https://docs.oracle.com/cd/E19253-01/816-5175/standards-5/index.html
5141 dnl https://www.gnu.org/software/libc/manual/html_node/Feature-Test-Macros.html
5142 AC_DEFUN([CF_XOPEN_SOURCE],[
5143 AC_REQUIRE([AC_CANONICAL_HOST])
5144 AC_REQUIRE([CF_POSIX_VISIBLE])
5146 if test "$cf_cv_posix_visible" = no; then
5148 cf_XOPEN_SOURCE=ifelse([$1],,500,[$1])
5149 cf_POSIX_C_SOURCE=ifelse([$2],,199506L,[$2])
5154 cf_xopen_source="-D_ALL_SOURCE"
5157 cf_xopen_source="-D_APPLE_C_SOURCE"
5160 cf_xopen_source="-D_DARWIN_C_SOURCE"
5163 (freebsd*|dragonfly*|midnightbsd*)
5164 # 5.x headers associate
5165 # _XOPEN_SOURCE=600 with _POSIX_C_SOURCE=200112L
5166 # _XOPEN_SOURCE=500 with _POSIX_C_SOURCE=199506L
5167 cf_POSIX_C_SOURCE=200112L
5169 cf_xopen_source="-D_BSD_TYPES -D__BSD_VISIBLE -D_POSIX_C_SOURCE=$cf_POSIX_C_SOURCE -D_XOPEN_SOURCE=$cf_XOPEN_SOURCE"
5172 cf_xopen_source="-D_HPUX_SOURCE -D_XOPEN_SOURCE=500"
5175 cf_xopen_source="-D_HPUX_SOURCE"
5178 cf_xopen_source="-D_SGI_SOURCE"
5181 (linux*gnu|linux*gnuabi64|linux*gnuabin32|linux*gnueabi|linux*gnueabihf|linux*gnux32|uclinux*|gnu*|mint*|k*bsd*-gnu|cygwin|msys|mingw*|linux*uclibc)
5182 CF_GNU_SOURCE($cf_XOPEN_SOURCE)
5185 cf_xopen_source="-D_NETBSD_SOURCE" # POSIX.1-2001 features are ifdef'd with this...
5188 # setting _XOPEN_SOURCE or _POSIX_SOURCE breaks <sys/select.h> and other headers which use u_int / u_short types
5190 CF_POSIX_C_SOURCE($cf_POSIX_C_SOURCE)
5193 cf_xopen_source="-D_NETBSD_SOURCE" # setting _XOPEN_SOURCE breaks IPv6 for lynx on NetBSD 1.6, breaks xterm, is not needed for ncursesw
5196 # OpenBSD 6.x has broken locale support, both compile-time and runtime.
5197 # see https://www.mail-archive.com/bugs@openbsd.org/msg13200.html
5198 # Abusing the conformance level is a workaround.
5199 AC_MSG_WARN(this system does not provide usable locale support)
5200 cf_xopen_source="-D_BSD_SOURCE"
5204 # setting _XOPEN_SOURCE lower than 500 breaks g++ compile with wchar.h, needed for ncursesw
5205 cf_xopen_source="-D_BSD_SOURCE"
5209 # setting _XOPEN_SOURCE breaks xterm on OpenBSD 2.8, is not needed for ncursesw
5212 cf_xopen_source="-D_OSF_SOURCE"
5215 cf_xopen_source="-D_QNX_SOURCE"
5218 # setting _XOPEN_SOURCE breaks Lynx on SCO Unix / OpenServer
5221 cf_xopen_source="-D__EXTENSIONS__"
5222 cf_cv_xopen_source=broken
5224 (sysv4.2uw2.*) # Novell/SCO UnixWare 2.x (tested on 2.1.2)
5230 cf_save_xopen_cppflags="$CPPFLAGS"
5231 CF_POSIX_C_SOURCE($cf_POSIX_C_SOURCE)
5232 # Some of these niche implementations use copy/paste, double-check...
5233 if test "$cf_cv_xopen_source" = no ; then
5234 CF_VERBOSE(checking if _POSIX_C_SOURCE interferes with _XOPEN_SOURCE)
5235 AC_TRY_COMPILE(CF__XOPEN_SOURCE_HEAD,CF__XOPEN_SOURCE_BODY,,[
5236 AC_MSG_WARN(_POSIX_C_SOURCE definition is not usable)
5237 CPPFLAGS="$cf_save_xopen_cppflags"])
5242 if test -n "$cf_xopen_source" ; then
5243 CF_APPEND_CFLAGS($cf_xopen_source,true)
5246 dnl In anything but the default case, we may have system-specific setting
5247 dnl which is still not guaranteed to provide all of the entrypoints that
5248 dnl _XOPEN_SOURCE would yield.
5249 if test -n "$cf_XOPEN_SOURCE" && test -z "$cf_cv_xopen_source" ; then
5250 AC_MSG_CHECKING(if _XOPEN_SOURCE really is set)
5251 AC_TRY_COMPILE([#include <stdlib.h>],[
5252 #ifndef _XOPEN_SOURCE
5253 #error _XOPEN_SOURCE is not defined
5255 [cf_XOPEN_SOURCE_set=yes],
5256 [cf_XOPEN_SOURCE_set=no])
5257 AC_MSG_RESULT($cf_XOPEN_SOURCE_set)
5258 if test "$cf_XOPEN_SOURCE_set" = yes
5260 AC_TRY_COMPILE([#include <stdlib.h>],[
5261 #if (_XOPEN_SOURCE - 0) < $cf_XOPEN_SOURCE
5262 #error (_XOPEN_SOURCE - 0) < $cf_XOPEN_SOURCE
5264 [cf_XOPEN_SOURCE_set_ok=yes],
5265 [cf_XOPEN_SOURCE_set_ok=no])
5266 if test "$cf_XOPEN_SOURCE_set_ok" = no
5268 AC_MSG_WARN(_XOPEN_SOURCE is lower than requested)
5274 fi # cf_cv_posix_visible
5276 dnl ---------------------------------------------------------------------------
5277 dnl CF__SED_TRIMBLANKS version: 1 updated: 2021/01/02 09:31:20
5278 dnl ------------------
5279 dnl Trim something using sed, then trim extra whitespace
5280 dnl $1 = extra parameters, e.g., in CF_STRIP_G_OPT
5281 define([CF__SED_TRIMBLANKS],[sed ifelse($1,,,[$1] )-e 's%[[ ]]% %g' -e 's% [[ ]]*% %g' -e 's%^ %%' -e 's% [$]%%'])dnl
5282 dnl ---------------------------------------------------------------------------
5283 dnl CF__XOPEN_SOURCE_BODY version: 2 updated: 2023/02/18 17:41:25
5284 dnl ---------------------
5285 dnl body of test when test-compiling for _XOPEN_SOURCE check
5286 define([CF__XOPEN_SOURCE_BODY],
5288 #ifndef _XOPEN_SOURCE
5289 #error _XOPEN_SOURCE is not defined
5292 dnl ---------------------------------------------------------------------------
5293 dnl CF__XOPEN_SOURCE_HEAD version: 2 updated: 2023/02/18 17:41:25
5294 dnl ---------------------
5295 dnl headers to include when test-compiling for _XOPEN_SOURCE check
5296 define([CF__XOPEN_SOURCE_HEAD],
5298 $ac_includes_default