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 1.202 2023/04/15 20:02:10 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. $CPPFLAGS"
2128 dnl ---------------------------------------------------------------------------
2129 dnl CF_INSTALL_OPTS version: 2 updated: 2018/08/18 12:19:21
2131 dnl prompt for/fill-in useful install-program options
2132 AC_DEFUN([CF_INSTALL_OPTS],
2138 dnl ---------------------------------------------------------------------------
2139 dnl CF_INSTALL_OPT_O version: 3 updated: 2020/12/31 20:19:42
2140 dnl ----------------
2141 dnl Almost all "install" programs default to the current user's ownership.
2142 dnl Almost - MINIX is an exception.
2143 AC_DEFUN([CF_INSTALL_OPT_O],
2145 AC_MSG_CHECKING(if install needs to be told about ownership)
2146 case `$ac_config_guess` in
2155 AC_MSG_RESULT($with_install_o)
2156 if test "x$with_install_o" = xyes
2158 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'`"
2163 AC_SUBST(INSTALL_OPT_O)
2165 dnl ---------------------------------------------------------------------------
2166 dnl CF_INSTALL_OPT_P version: 3 updated: 2021/01/01 13:31:04
2167 dnl ----------------
2168 dnl Some install-programs accept a "-p" option to preserve file modification
2169 dnl timestamps. That can be useful as an install option, as well as a way to
2170 dnl avoid the need for ranlib after copying a static archive.
2171 AC_DEFUN([CF_INSTALL_OPT_P],
2173 : "${INSTALL:=install}"
2174 AC_CACHE_CHECK(if install accepts -p option, cf_cv_install_p,[
2179 if $INSTALL -p conftest.in conftest.out 2>/dev/null
2181 if test -f conftest.out/conftest.in
2183 test conftest.in -nt conftest.out/conftest.in 2>conftest.err && \
2184 test conftest.out/conftest.in -nt conftest.in 2>conftest.err
2185 if test -s conftest.err
2200 dnl ---------------------------------------------------------------------------
2201 dnl CF_INSTALL_OPT_S version: 3 updated: 2021/01/05 19:23:48
2202 dnl ----------------
2203 dnl By default, we should strip executables which are installed, but leave the
2204 dnl ability to suppress that for unit-testing.
2205 AC_DEFUN([CF_INSTALL_OPT_S],
2207 AC_MSG_CHECKING(if you want to install stripped executables)
2208 CF_ARG_DISABLE(stripping,
2209 [ --disable-stripping do not strip (debug info) installed executables],
2210 [enable_stripping=no],
2211 [enable_stripping=yes])
2212 AC_MSG_RESULT($enable_stripping)
2214 if test "$enable_stripping" = yes
2220 AC_SUBST(INSTALL_OPT_S)
2222 dnl ---------------------------------------------------------------------------
2223 dnl CF_INTEL_COMPILER version: 9 updated: 2023/02/18 17:41:25
2224 dnl -----------------
2225 dnl Check if the given compiler is really the Intel compiler for Linux. It
2226 dnl tries to imitate gcc, but does not return an error when it finds a mismatch
2227 dnl between prototypes, e.g., as exercised by CF_MISSING_CHECK.
2229 dnl This macro should be run "soon" after AC_PROG_CC or AC_PROG_CPLUSPLUS, to
2230 dnl ensure that it is not mistaken for gcc/g++. It is normally invoked from
2231 dnl the wrappers for gcc and g++ warnings.
2233 dnl $1 = GCC (default) or GXX
2234 dnl $2 = INTEL_COMPILER (default) or INTEL_CPLUSPLUS
2235 dnl $3 = CFLAGS (default) or CXXFLAGS
2236 AC_DEFUN([CF_INTEL_COMPILER],[
2237 AC_REQUIRE([AC_CANONICAL_HOST])
2238 ifelse([$2],,INTEL_COMPILER,[$2])=no
2240 if test "$ifelse([$1],,[$1],GCC)" = yes ; then
2243 AC_MSG_CHECKING(if this is really Intel ifelse([$1],GXX,C++,C) compiler)
2244 cf_save_CFLAGS="$ifelse([$3],,CFLAGS,[$3])"
2245 ifelse([$3],,CFLAGS,[$3])="$ifelse([$3],,CFLAGS,[$3]) -no-gcc"
2247 #ifdef __INTEL_COMPILER
2249 #error __INTEL_COMPILER is not defined
2251 ],[ifelse([$2],,INTEL_COMPILER,[$2])=yes
2252 cf_save_CFLAGS="$cf_save_CFLAGS -we147"
2254 ifelse([$3],,CFLAGS,[$3])="$cf_save_CFLAGS"
2255 AC_MSG_RESULT($ifelse([$2],,INTEL_COMPILER,[$2]))
2260 dnl ---------------------------------------------------------------------------
2261 dnl CF_LARGEFILE version: 12 updated: 2020/03/19 20:23:48
2263 dnl Add checks for large file support.
2264 AC_DEFUN([CF_LARGEFILE],[
2265 ifdef([AC_FUNC_FSEEKO],[
2267 if test "$enable_largefile" != no ; then
2270 # Normally we would collect these definitions in the config.h,
2271 # but (like _XOPEN_SOURCE), some environments rely on having these
2272 # defined before any of the system headers are included. Another
2273 # case comes up with C++, e.g., on AIX the compiler compiles the
2274 # header files by themselves before looking at the body files it is
2275 # told to compile. For ncurses, those header files do not include
2277 if test "$ac_cv_sys_large_files" != no
2279 CF_APPEND_TEXT(CPPFLAGS,-D_LARGE_FILES)
2281 if test "$ac_cv_sys_largefile_source" != no
2283 CF_APPEND_TEXT(CPPFLAGS,-D_LARGEFILE_SOURCE)
2285 if test "$ac_cv_sys_file_offset_bits" != no
2287 CF_APPEND_TEXT(CPPFLAGS,-D_FILE_OFFSET_BITS=$ac_cv_sys_file_offset_bits)
2290 AC_CACHE_CHECK(whether to use struct dirent64, cf_cv_struct_dirent64,[
2292 #pragma GCC diagnostic error "-Wincompatible-pointer-types"
2293 #include <sys/types.h>
2296 /* if transitional largefile support is setup, this is true */
2297 extern struct dirent64 * readdir(DIR *);
2298 struct dirent64 *x = readdir((DIR *)0);
2299 struct dirent *y = readdir((DIR *)0);
2303 [cf_cv_struct_dirent64=yes],
2304 [cf_cv_struct_dirent64=no])
2306 test "$cf_cv_struct_dirent64" = yes && AC_DEFINE(HAVE_STRUCT_DIRENT64,1,[Define to 1 if we have struct dirent64])
2310 dnl ---------------------------------------------------------------------------
2311 dnl CF_LD_RPATH_OPT version: 9 updated: 2021/01/01 13:31:04
2313 dnl For the given system and compiler, find the compiler flags to pass to the
2314 dnl loader to use the "rpath" feature.
2315 AC_DEFUN([CF_LD_RPATH_OPT],
2317 AC_REQUIRE([CF_CHECK_CACHE])
2320 if test "x$cf_cv_enable_rpath" != xno
2322 AC_MSG_CHECKING(for an rpath option)
2323 case "$cf_cv_system_name" in
2325 if test "$GCC" = yes; then
2326 LD_RPATH_OPT="-Wl,-rpath,"
2328 LD_RPATH_OPT="-rpath "
2331 (linux*|gnu*|k*bsd*-gnu|freebsd*)
2332 LD_RPATH_OPT="-Wl,-rpath,"
2334 (openbsd[[2-9]].*|mirbsd*)
2335 LD_RPATH_OPT="-Wl,-rpath,"
2338 LD_RPATH_OPT="-rpath "
2341 LD_RPATH_OPT="-Wl,-rpath,"
2344 LD_RPATH_OPT="-rpath "
2352 AC_MSG_RESULT($LD_RPATH_OPT)
2354 case "x$LD_RPATH_OPT" in
2356 AC_MSG_CHECKING(if we need a space after rpath option)
2357 cf_save_LIBS="$LIBS"
2358 CF_ADD_LIBS(${LD_RPATH_OPT}$libdir)
2359 AC_TRY_LINK(, , cf_rpath_space=no, cf_rpath_space=yes)
2360 LIBS="$cf_save_LIBS"
2361 AC_MSG_RESULT($cf_rpath_space)
2362 test "$cf_rpath_space" = yes && LD_RPATH_OPT="$LD_RPATH_OPT "
2367 dnl ---------------------------------------------------------------------------
2368 dnl CF_LIBRARY_PATH version: 11 updated: 2021/01/01 13:31:04
2370 dnl Construct a search-list of directories for a nonstandard library-file
2373 dnl $1 = the variable to return as result
2374 dnl $2 = the package name
2375 AC_DEFUN([CF_LIBRARY_PATH],
2378 cf_library_path_list=""
2379 if test -n "${LDFLAGS}${LIBS}" ; then
2380 for cf_library_path in $LDFLAGS $LIBS
2382 case "$cf_library_path" in
2384 cf_library_path=`echo ".$cf_library_path" |sed -e 's/^...//' -e 's,/lib$,,'`
2385 CF_ADD_SUBDIR_PATH($1,$2,lib,$cf_library_path,NONE)
2386 cf_library_path_list="$cf_library_path_list [$]$1"
2392 CF_SUBDIR_PATH($1,$2,lib)
2394 $1="$cf_library_path_list [$]$1"
2396 dnl ---------------------------------------------------------------------------
2397 dnl CF_LIB_PREFIX version: 14 updated: 2021/01/01 13:31:04
2399 dnl Compute the library-prefix for the given host system
2400 dnl $1 = variable to set
2401 define([CF_LIB_PREFIX],
2403 case "$cf_cv_system_name" in
2405 if test "$DFT_LWR_MODEL" = libtool; then
2414 (*) LIB_PREFIX='lib'
2417 ifelse($1,,,[$1=$LIB_PREFIX])
2418 AC_SUBST(LIB_PREFIX)
2420 dnl ---------------------------------------------------------------------------
2421 dnl CF_LIB_SUFFIX version: 28 updated: 2021/01/01 16:53:59
2423 dnl Compute the library file-suffix from the given model name
2425 dnl $2 = variable to set (the nominal library suffix)
2426 dnl $3 = dependency variable to set (actual filename)
2427 dnl The variable $LIB_SUFFIX, if set, prepends the variable to set.
2428 AC_DEFUN([CF_LIB_SUFFIX],
2436 case "$cf_cv_system_name" in
2447 case "$cf_cv_system_name" in
2458 case "$cf_cv_system_name" in
2467 (cygwin*|msys*|mingw*)
2505 if test -n "${LIB_SUFFIX}${EXTRA_SUFFIX}"
2507 $2="${LIB_SUFFIX}${EXTRA_SUFFIX}[$]{$2}"
2508 $3="${LIB_SUFFIX}${EXTRA_SUFFIX}[$]{$3}"
2511 dnl ---------------------------------------------------------------------------
2512 dnl CF_LIB_TYPE version: 5 updated: 2015/04/17 21:13:04
2514 dnl Compute the string to append to -library from the given model name
2516 dnl $2 = variable to set
2517 dnl The variable $LIB_SUFFIX, if set, prepends the variable to set.
2518 AC_DEFUN([CF_LIB_TYPE],
2524 (profile) $2='_p' ;;
2527 test -n "$LIB_SUFFIX" && $2="${LIB_SUFFIX}[$]{$2}"
2529 dnl ---------------------------------------------------------------------------
2530 dnl CF_LINK_DATAONLY version: 13 updated: 2020/02/08 15:59:30
2531 dnl ----------------
2532 dnl Some systems have a non-ANSI linker that doesn't pull in modules that have
2533 dnl only data (i.e., no functions), for example NeXT. On those systems we'll
2534 dnl have to provide wrappers for global tables to ensure they're linked
2536 AC_DEFUN([CF_LINK_DATAONLY],
2538 AC_MSG_CHECKING([if data-only library module links])
2539 AC_CACHE_VAL(cf_cv_link_dataonly,[
2541 cat >conftest.$ac_ext <<EOF
2542 #line __oline__ "configure"
2543 int testdata[[3]] = { 123, 456, 789 };
2545 if AC_TRY_EVAL(ac_compile) ; then
2546 mv conftest.o data.o && \
2547 ( $AR $ARFLAGS conftest.a data.o ) 2>&AC_FD_CC 1>/dev/null
2549 rm -f conftest.$ac_ext data.o
2550 cat >conftest.$ac_ext <<EOF
2551 #line __oline__ "configure"
2555 ${cf_cv_main_return:-return}(1); /* I'm told this linker is broken */
2557 extern int testdata[[3]];
2558 return testdata[[0]] == 123
2559 && testdata[[1]] == 456
2560 && testdata[[2]] == 789;
2564 if AC_TRY_EVAL(ac_compile); then
2565 mv conftest.o func.o && \
2566 ( $AR $ARFLAGS conftest.a func.o ) 2>&AC_FD_CC 1>/dev/null
2568 rm -f conftest.$ac_ext func.o
2569 ( eval $RANLIB conftest.a ) 2>&AC_FD_CC >/dev/null
2571 LIBS="conftest.a $LIBS"
2575 extern int testfunc();
2576 ${cf_cv_main_return:-return} (!testfunc());
2579 [cf_cv_link_dataonly=yes],
2580 [cf_cv_link_dataonly=no],
2581 [cf_cv_link_dataonly=unknown])
2584 AC_MSG_RESULT($cf_cv_link_dataonly)
2586 if test "$cf_cv_link_dataonly" = no ; then
2587 AC_DEFINE(BROKEN_LINKER,1,[if data-only library module does not link])
2590 AC_SUBST(BROKEN_LINKER)
2593 dnl ---------------------------------------------------------------------------
2594 dnl CF_MAKEFLAGS version: 21 updated: 2021/09/04 06:47:34
2596 dnl Some 'make' programs support ${MAKEFLAGS}, some ${MFLAGS}, to pass 'make'
2597 dnl options to lower-levels. It is very useful for "make -n" -- if we have it.
2598 dnl (GNU 'make' does both, something POSIX 'make', which happens to make the
2599 dnl ${MAKEFLAGS} variable incompatible because it adds the assignments :-)
2600 AC_DEFUN([CF_MAKEFLAGS],
2601 [AC_REQUIRE([AC_PROG_FGREP])dnl
2603 AC_CACHE_CHECK(for makeflags variable, cf_cv_makeflags,[
2605 for cf_option in '-${MAKEFLAGS}' '${MFLAGS}'
2607 cat >cf_makeflags.tmp <<CF_EOF
2610 @ echo '.$cf_option'
2612 cf_result=`${MAKE:-make} -k -f cf_makeflags.tmp 2>/dev/null | ${FGREP-fgrep} -v "ing directory" | sed -e 's,[[ ]]*$,,'`
2613 case "$cf_result" in
2615 cf_result="`${MAKE:-make} -k -f cf_makeflags.tmp CC=cc 2>/dev/null`"
2616 case "$cf_result" in
2617 (.*CC=*) cf_cv_makeflags=
2619 (*) cf_cv_makeflags=$cf_option
2627 CF_MSG_LOG(given option \"$cf_option\", no match \"$cf_result\")
2631 rm -f cf_makeflags.tmp
2634 AC_SUBST(cf_cv_makeflags)
2636 dnl ---------------------------------------------------------------------------
2637 dnl CF_MAKE_PHONY version: 3 updated: 2021/01/08 16:08:21
2639 dnl Check if the make-program handles a ".PHONY" target, e.g,. a target which
2640 dnl acts as a placeholder.
2642 dnl The ".PHONY" feature was proposed in 2011 here
2643 dnl https://www.austingroupbugs.net/view.php?id=523
2644 dnl and is scheduled for release in P1003.1 Issue 8 (late 2022).
2646 dnl This is not supported by SVr4 make (or SunOS 4, 4.3SD, etc), but works with
2647 dnl a few others (i.e., GNU make and the non-POSIX "BSD" make):
2649 dnl + This is a GNU make feature (since April 1988, but in turn from binutils,
2650 dnl date unspecified).
2652 dnl + It was adopted in NetBSD make in June 1995.
2654 dnl + The other BSD make programs are derived from the NetBSD make (and for
2655 dnl that reason are not actually different "implementations").
2657 dnl + Some features of NetBSD make were actually adapted from pmake, which
2658 dnl began as a modified GNU make starting in 1993.
2660 dnl + Version 3.8 of the dmake program in January 1992 also implemented this
2661 dnl GNU make extension, but is less well known than the BSD make.
2662 AC_DEFUN([CF_MAKE_PHONY],[
2663 AC_CACHE_CHECK(for \".PHONY\" make-support, cf_cv_make_PHONY,[
2666 mkdir conftest || exit 1
2668 cat >makefile <<'CF_EOF'
2672 @echo "** making [$]@ [$](DATA)"
2674 @echo "** making [$]@ [$](DATA)"
2676 @echo "** making [$]@ [$](DATA)"
2677 echo [$](DATA) > [$]@
2679 @echo "** making [$]@ [$](DATA)"
2680 echo [$](DATA) > [$]@
2682 for cf_data in 1 2 3
2684 ${MAKE:-make} always DATA=$cf_data
2685 ${MAKE:-make} once DATA=$cf_data
2686 ${MAKE:-make} -t always once
2687 if test -f always ; then
2688 echo "no (case 1)" > ../conftest.tmp
2689 elif test ! -f always.out ; then
2690 echo "no (case 2)" > ../conftest.tmp
2691 elif test ! -f once.out ; then
2692 echo "no (case 3)" > ../conftest.tmp
2693 elif ! cmp -s always.out once.out ; then
2694 echo "no (case 4)" > ../conftest.tmp
2695 diff always.out once.out
2697 cf_check="`cat always.out`"
2698 if test "x$cf_check" != "x$cf_data" ; then
2699 echo "no (case 5)" > ../conftest.tmp
2701 echo yes > ../conftest.tmp
2709 cf_cv_make_PHONY="`cat conftest.tmp`"
2714 test "x$cf_cv_make_PHONY" = xyes && MAKE_PHONY=
2715 test "x$cf_cv_make_PHONY" != xyes && MAKE_NO_PHONY=
2716 AC_SUBST(MAKE_NO_PHONY)
2717 AC_SUBST(MAKE_PHONY)
2719 dnl ---------------------------------------------------------------------------
2720 dnl CF_MAKE_TAGS version: 6 updated: 2010/10/23 15:52:32
2722 dnl Generate tags/TAGS targets for makefiles. Do not generate TAGS if we have
2723 dnl a monocase filesystem.
2724 AC_DEFUN([CF_MAKE_TAGS],[
2725 AC_REQUIRE([CF_MIXEDCASE_FILENAMES])
2727 AC_CHECK_PROGS(CTAGS, exctags ctags)
2728 AC_CHECK_PROGS(ETAGS, exetags etags)
2730 AC_CHECK_PROG(MAKE_LOWER_TAGS, ${CTAGS:-ctags}, yes, no)
2732 if test "$cf_cv_mixedcase" = yes ; then
2733 AC_CHECK_PROG(MAKE_UPPER_TAGS, ${ETAGS:-etags}, yes, no)
2738 if test "$MAKE_UPPER_TAGS" = yes ; then
2744 if test "$MAKE_LOWER_TAGS" = yes ; then
2753 AC_SUBST(MAKE_UPPER_TAGS)
2754 AC_SUBST(MAKE_LOWER_TAGS)
2756 dnl ---------------------------------------------------------------------------
2757 dnl CF_MIXEDCASE_FILENAMES version: 9 updated: 2021/01/01 16:53:59
2758 dnl ----------------------
2759 dnl Check if the file-system supports mixed-case filenames. If we're able to
2760 dnl create a lowercase name and see it as uppercase, it doesn't support that.
2761 AC_DEFUN([CF_MIXEDCASE_FILENAMES],
2763 AC_CACHE_CHECK(if filesystem supports mixed-case filenames,cf_cv_mixedcase,[
2764 if test "$cross_compiling" = yes ; then
2765 case "$target_alias" in
2766 (*-os2-emx*|*-msdosdjgpp*|*-cygwin*|*-msys*|*-mingw*|*-uwin*|darwin*)
2774 rm -f conftest CONFTEST
2776 if test -f CONFTEST ; then
2781 rm -f conftest CONFTEST
2784 test "$cf_cv_mixedcase" = yes && AC_DEFINE(MIXEDCASE_FILENAMES,1,[Define to 1 if filesystem supports mixed-case filenames.])
2786 dnl ---------------------------------------------------------------------------
2787 dnl CF_MKSTEMP version: 12 updated: 2023/01/05 17:53:11
2789 dnl Check for a working mkstemp. This creates two files, checks that they are
2790 dnl successfully created and distinct (AmigaOS apparently fails on the last).
2791 AC_DEFUN([CF_MKSTEMP],[
2795 AC_CACHE_CHECK(for working mkstemp, cf_cv_func_mkstemp,[
2798 $ac_includes_default
2802 char *tmpl = "conftestXXXXXX";
2810 for (n = 0; n < 2; ++n) {
2811 strcpy(name[n], tmpl);
2812 if ((fd = mkstemp(name[n])) >= 0) {
2813 if (!strcmp(name[n], tmpl)
2814 || stat(name[n], &sb) != 0
2815 || (sb.st_mode & S_IFMT) != S_IFREG
2816 || (sb.st_mode & 077) != 0) {
2823 && !strcmp(name[0], name[1]))
2825 ${cf_cv_main_return:-return}(result);
2827 ],[cf_cv_func_mkstemp=yes
2828 ],[cf_cv_func_mkstemp=no
2829 ],[cf_cv_func_mkstemp=maybe])
2831 if test "x$cf_cv_func_mkstemp" = xmaybe ; then
2832 AC_CHECK_FUNC(mkstemp)
2834 if test "x$cf_cv_func_mkstemp" = xyes || test "x$ac_cv_func_mkstemp" = xyes ; then
2835 AC_DEFINE(HAVE_MKSTEMP,1,[Define to 1 if mkstemp() is available and working.])
2838 dnl ---------------------------------------------------------------------------
2839 dnl CF_MSG_LOG version: 5 updated: 2010/10/23 15:52:32
2841 dnl Write a debug message to config.log, along with the line number in the
2842 dnl configure script.
2843 AC_DEFUN([CF_MSG_LOG],[
2844 echo "${as_me:-configure}:__oline__: testing $* ..." 1>&AC_FD_CC
2846 dnl ---------------------------------------------------------------------------
2847 dnl CF_NCURSES_ADDON version: 6 updated: 2021/01/04 19:33:05
2848 dnl ----------------
2849 dnl Configure an ncurses add-on, built outside the ncurses tree.
2850 AC_DEFUN([CF_NCURSES_ADDON],[
2851 AC_REQUIRE([CF_NCURSES_CONFIG])
2853 AC_PROVIDE([CF_SUBST_NCURSES_VERSION])
2855 AC_MSG_CHECKING(if you want wide-character code)
2856 AC_ARG_ENABLE(widec,
2857 [ --enable-widec compile with wide-char/UTF-8 code],
2858 [with_widec=$enableval],
2860 AC_MSG_RESULT($with_widec)
2861 if test "$with_widec" = yes ; then
2863 CF_NCURSES_CONFIG(ncursesw)
2865 CF_NCURSES_CONFIG(ncurses)
2868 if test "$NCURSES_CONFIG_PKG" != none ; then
2869 cf_version=`$PKG_CONFIG --modversion $NCURSES_CONFIG_PKG 2>/dev/null`
2871 NCURSES_MAJOR=`echo "$cf_version" | sed -e 's/\..*//'`
2872 NCURSES_MINOR=`echo "$cf_version" | sed -e 's/^[[0-9]][[0-9]]*\.//' -e 's/\..*//'`
2873 NCURSES_PATCH=`echo "$cf_version" | sed -e 's/^[[0-9]][[0-9]]*\.[[0-9]][[0-9]]*\.//'`
2875 cf_cv_abi_version=`$PKG_CONFIG --variable=abi_version $NCURSES_CONFIG_PKG 2>/dev/null`
2876 if test -z "$cf_cv_abi_version"
2878 cf_cv_abi_version=`$PKG_CONFIG --variable=major_version $NCURSES_CONFIG_PKG 2>/dev/null`
2881 elif test "$NCURSES_CONFIG" != none ; then
2883 cf_version=`$NCURSES_CONFIG --version 2>/dev/null`
2885 NCURSES_MAJOR=`echo "$cf_version" | sed -e 's/\..*//'`
2886 NCURSES_MINOR=`echo "$cf_version" | sed -e 's/^[[0-9]][[0-9]]*\.//' -e 's/\..*//'`
2887 NCURSES_PATCH=`echo "$cf_version" | sed -e 's/^[[0-9]][[0-9]]*\.[[0-9]][[0-9]]*\.//'`
2889 # ABI version is not available from headers
2890 cf_cv_abi_version=`$NCURSES_CONFIG --abi-version 2>/dev/null`
2894 for cf_name in MAJOR MINOR PATCH
2896 cat >conftest.$ac_ext <<CF_EOF
2897 #include <${cf_cv_ncurses_header:-curses.h}>
2898 AUTOCONF_$cf_name NCURSES_VERSION_$cf_name
2900 cf_try="$ac_cpp conftest.$ac_ext 2>&5 | fgrep AUTOCONF_$cf_name >conftest.out"
2902 if test -f conftest.out ; then
2903 cf_result=`sed -e "s/^.*AUTOCONF_${cf_name}[[ ]][[ ]]*//" conftest.out`
2904 eval NCURSES_$cf_name=\"$cf_result\"
2905 # cat conftest.$ac_ext
2910 cf_cv_abi_version=${NCURSES_MAJOR}
2914 cf_cv_rel_version=${NCURSES_MAJOR}.${NCURSES_MINOR}
2916 dnl Show the computed version, for logging
2917 cf_cv_timestamp=`date`
2919 AC_MSG_RESULT(Configuring NCURSES $cf_cv_rel_version ABI $cf_cv_abi_version ($cf_cv_timestamp))
2921 dnl We need these values in the generated headers
2922 AC_SUBST(NCURSES_MAJOR)
2923 AC_SUBST(NCURSES_MINOR)
2924 AC_SUBST(NCURSES_PATCH)
2926 dnl We need these values in the generated makefiles
2927 AC_SUBST(cf_cv_rel_version)
2928 AC_SUBST(cf_cv_abi_version)
2930 dnl FIXME - not needed for Ada95
2931 AC_SUBST(cf_cv_builtin_bool)
2932 AC_SUBST(cf_cv_header_stdbool_h)
2933 AC_SUBST(cf_cv_type_of_bool)dnl
2936 dnl ---------------------------------------------------------------------------
2937 dnl CF_NCURSES_CC_CHECK version: 6 updated: 2023/02/18 17:47:58
2938 dnl -------------------
2939 dnl Check if we can compile with ncurses' header file
2940 dnl $1 is the cache variable to set
2941 dnl $2 is the header-file to include
2942 dnl $3 is the root name (ncurses or ncursesw)
2943 AC_DEFUN([CF_NCURSES_CC_CHECK],[
2945 ]ifelse($3,ncursesw,[
2946 #define _XOPEN_SOURCE_EXTENDED
2947 #undef HAVE_LIBUTF8_H /* in case we used CF_UTF8_LIB */
2948 #define HAVE_LIBUTF8_H /* to force ncurses' header file to use cchar_t */
2951 #ifdef NCURSES_VERSION
2952 ]ifelse($3,ncursesw,[
2954 #error WACS_BSSB is not defined
2957 printf("%s\\n", NCURSES_VERSION);
2962 #error __NCURSES_H is not defined
2969 dnl ---------------------------------------------------------------------------
2970 dnl CF_NCURSES_CONFIG version: 28 updated: 2021/08/28 15:20:37
2971 dnl -----------------
2972 dnl Tie together the configure-script macros for ncurses, preferring these in
2974 dnl a) ".pc" files for pkg-config, using $NCURSES_CONFIG_PKG
2975 dnl b) the "-config" script from ncurses, using $NCURSES_CONFIG
2976 dnl c) just plain libraries
2978 dnl $1 is the root library name (default: "ncurses")
2979 AC_DEFUN([CF_NCURSES_CONFIG],[
2980 AC_REQUIRE([CF_PKG_CONFIG])
2981 cf_ncuconfig_root=ifelse($1,,ncurses,$1)
2982 cf_have_ncuconfig=no
2984 if test "x${PKG_CONFIG:=none}" != xnone; then
2985 AC_MSG_CHECKING(pkg-config for $cf_ncuconfig_root)
2986 if "$PKG_CONFIG" --exists $cf_ncuconfig_root ; then
2989 AC_MSG_CHECKING(if the $cf_ncuconfig_root package files work)
2990 cf_have_ncuconfig=unknown
2992 cf_save_CFLAGS="$CFLAGS"
2993 cf_save_CPPFLAGS="$CPPFLAGS"
2994 cf_save_LIBS="$LIBS"
2996 cf_pkg_cflags="`$PKG_CONFIG --cflags $cf_ncuconfig_root`"
2997 cf_pkg_libs="`$PKG_CONFIG --libs $cf_ncuconfig_root`"
2999 # while -W for passing linker flags is prevalent, it is not "standard".
3000 # At least one wrapper for c89/c99 (in Apple's xcode) has its own
3001 # incompatible _and_ non-standard -W option which gives an error. Work
3002 # around that pitfall.
3003 case "x${CC}@@${cf_pkg_libs}@${cf_pkg_cflags}" in
3005 CF_ADD_CFLAGS($cf_pkg_cflags)
3006 CF_ADD_LIBS($cf_pkg_libs)
3008 AC_TRY_LINK([#include <${cf_cv_ncurses_header:-curses.h}>],
3009 [initscr(); mousemask(0,0); tigetstr((char *)0);],
3010 [AC_TRY_RUN([#include <${cf_cv_ncurses_header:-curses.h}>
3012 { const char *xx = curses_version(); return (xx == 0); }],
3013 [cf_test_ncuconfig=yes],
3014 [cf_test_ncuconfig=no],
3015 [cf_test_ncuconfig=maybe])],
3016 [cf_test_ncuconfig=no])
3018 CFLAGS="$cf_save_CFLAGS"
3019 CPPFLAGS="$cf_save_CPPFLAGS"
3020 LIBS="$cf_save_LIBS"
3022 if test "x$cf_test_ncuconfig" != xyes; then
3023 cf_temp=`echo "x$cf_pkg_cflags" | sed -e s/^x// -e 's/-W[[^ ]]*//g'`
3024 cf_pkg_cflags="$cf_temp"
3025 cf_temp=`echo "x$cf_pkg_libs" | sed -e s/^x// -e 's/-W[[^ ]]*//g'`
3026 cf_pkg_libs="$cf_temp"
3031 CF_APPEND_CFLAGS($cf_pkg_cflags)
3032 CF_ADD_LIBS($cf_pkg_libs)
3034 AC_TRY_LINK([#include <${cf_cv_ncurses_header:-curses.h}>],
3035 [initscr(); mousemask(0,0); tigetstr((char *)0);],
3036 [AC_TRY_RUN([#include <${cf_cv_ncurses_header:-curses.h}>
3038 { const char *xx = curses_version(); return (xx == 0); }],
3039 [cf_have_ncuconfig=yes],
3040 [cf_have_ncuconfig=no],
3041 [cf_have_ncuconfig=maybe])],
3042 [cf_have_ncuconfig=no])
3043 AC_MSG_RESULT($cf_have_ncuconfig)
3044 test "$cf_have_ncuconfig" = maybe && cf_have_ncuconfig=yes
3045 if test "$cf_have_ncuconfig" != "yes"
3047 CPPFLAGS="$cf_save_CPPFLAGS"
3048 LIBS="$cf_save_LIBS"
3049 NCURSES_CONFIG_PKG=none
3051 AC_DEFINE(NCURSES,1,[Define to 1 if we are using ncurses headers/libraries])
3052 NCURSES_CONFIG_PKG=$cf_ncuconfig_root
3058 NCURSES_CONFIG_PKG=none
3061 NCURSES_CONFIG_PKG=none
3064 if test "x$cf_have_ncuconfig" = "xno"; then
3065 cf_ncurses_config="${cf_ncuconfig_root}${NCURSES_CONFIG_SUFFIX}-config"; echo "Looking for ${cf_ncurses_config}"
3067 CF_ACVERSION_CHECK(2.52,
3068 [AC_CHECK_TOOLS(NCURSES_CONFIG, ${cf_ncurses_config} ${cf_ncuconfig_root}6-config ${cf_ncuconfig_root}6-config ${cf_ncuconfig_root}5-config, none)],
3069 [AC_PATH_PROGS(NCURSES_CONFIG, ${cf_ncurses_config} ${cf_ncuconfig_root}6-config ${cf_ncuconfig_root}6-config ${cf_ncuconfig_root}5-config, none)])
3071 if test "$NCURSES_CONFIG" != none ; then
3073 CF_APPEND_CFLAGS(`$NCURSES_CONFIG --cflags`)
3074 CF_ADD_LIBS(`$NCURSES_CONFIG --libs`)
3076 # even with config script, some packages use no-override for curses.h
3077 CF_CURSES_HEADER(ifelse($1,,ncurses,$1))
3079 dnl like CF_NCURSES_CPPFLAGS
3080 AC_DEFINE(NCURSES,1,[Define to 1 if we are using ncurses headers/libraries])
3082 dnl like CF_NCURSES_LIBS
3083 CF_UPPER(cf_nculib_ROOT,HAVE_LIB$cf_ncuconfig_root)
3084 AC_DEFINE_UNQUOTED($cf_nculib_ROOT)
3086 dnl like CF_NCURSES_VERSION
3087 cf_cv_ncurses_version="`$NCURSES_CONFIG --version`"
3091 CF_NCURSES_CPPFLAGS(ifelse($1,,ncurses,$1))
3092 CF_NCURSES_LIBS(ifelse($1,,ncurses,$1))
3099 dnl ---------------------------------------------------------------------------
3100 dnl CF_NCURSES_CPPFLAGS version: 22 updated: 2021/01/02 09:31:20
3101 dnl -------------------
3102 dnl Look for the SVr4 curses clone 'ncurses' in the standard places, adjusting
3103 dnl the CPPFLAGS variable so we can include its header.
3105 dnl The header files may be installed as either curses.h, or ncurses.h (would
3106 dnl be obsolete, except that some packagers prefer this name to distinguish it
3107 dnl from a "native" curses implementation). If not installed for overwrite,
3108 dnl the curses.h file would be in an ncurses subdirectory (e.g.,
3109 dnl /usr/include/ncurses), but someone may have installed overwriting the
3110 dnl vendor's curses. Only very old versions (pre-1.9.2d, the first autoconf'd
3111 dnl version) of ncurses don't define either __NCURSES_H or NCURSES_VERSION in
3114 dnl If the installer has set $CFLAGS or $CPPFLAGS so that the ncurses header
3115 dnl is already in the include-path, don't even bother with this, since we cannot
3116 dnl easily determine which file it is. In this case, it has to be <curses.h>.
3118 dnl The optional parameter gives the root name of the library, in case it is
3119 dnl not installed as the default curses library. That is how the
3120 dnl wide-character version of ncurses is installed.
3121 AC_DEFUN([CF_NCURSES_CPPFLAGS],
3122 [AC_REQUIRE([CF_WITH_CURSES_DIR])
3124 AC_PROVIDE([CF_CURSES_CPPFLAGS])dnl
3125 cf_ncuhdr_root=ifelse($1,,ncurses,$1)
3127 test -n "$cf_cv_curses_dir" && \
3128 test "$cf_cv_curses_dir" != "no" && { \
3129 CF_ADD_INCDIR($cf_cv_curses_dir/include/$cf_ncuhdr_root)
3132 AC_CACHE_CHECK(for $cf_ncuhdr_root header in include-path, cf_cv_ncurses_h,[
3133 cf_header_list="$cf_ncuhdr_root/curses.h $cf_ncuhdr_root/ncurses.h"
3134 { test "$cf_ncuhdr_root" = ncurses || test "$cf_ncuhdr_root" = ncursesw; } && cf_header_list="$cf_header_list curses.h ncurses.h"
3135 for cf_header in $cf_header_list
3137 CF_NCURSES_CC_CHECK(cf_cv_ncurses_h,$cf_header,$1)
3138 test "$cf_cv_ncurses_h" != no && break
3145 # some applications need this, but should check for NCURSES_VERSION
3146 AC_DEFINE(NCURSES,1,[Define to 1 if we are using ncurses headers/libraries])
3150 dnl ---------------------------------------------------------------------------
3151 dnl CF_NCURSES_HEADER version: 7 updated: 2021/01/04 19:33:05
3152 dnl -----------------
3153 dnl Find a "curses" header file, e.g,. "curses.h", or one of the more common
3154 dnl variations of ncurses' installs.
3156 dnl See also CF_CURSES_HEADER, which sets the same cache variable.
3157 AC_DEFUN([CF_NCURSES_HEADER],[
3159 if test "$cf_cv_ncurses_h" != no ; then
3160 cf_cv_ncurses_header=$cf_cv_ncurses_h
3163 AC_CACHE_CHECK(for $cf_ncuhdr_root include-path, cf_cv_ncurses_h2,[
3164 test -n "$verbose" && echo
3165 CF_HEADER_PATH(cf_search,$cf_ncuhdr_root)
3166 test -n "$verbose" && echo "search path $cf_search"
3167 cf_save2_CPPFLAGS="$CPPFLAGS"
3168 for cf_incdir in $cf_search
3170 CF_ADD_INCDIR($cf_incdir)
3175 CF_NCURSES_CC_CHECK(cf_cv_ncurses_h2,$cf_header,$1)
3176 if test "$cf_cv_ncurses_h2" != no ; then
3177 cf_cv_ncurses_h2=$cf_incdir/$cf_header
3178 test -n "$verbose" && echo $ECHO_N " ... found $ECHO_C" 1>&AC_FD_MSG
3181 test -n "$verbose" && echo " ... tested $cf_incdir/$cf_header" 1>&AC_FD_MSG
3183 CPPFLAGS="$cf_save2_CPPFLAGS"
3184 test "$cf_cv_ncurses_h2" != no && break
3186 test "$cf_cv_ncurses_h2" = no && AC_MSG_ERROR(not found)
3189 CF_DIRNAME(cf_1st_incdir,$cf_cv_ncurses_h2)
3190 cf_cv_ncurses_header="`basename "$cf_cv_ncurses_h2"`"
3191 if test "`basename "$cf_1st_incdir"`" = "$cf_ncuhdr_root" ; then
3192 cf_cv_ncurses_header="$cf_ncuhdr_root/$cf_cv_ncurses_header"
3194 CF_ADD_INCDIR($cf_1st_incdir)
3198 # Set definitions to allow ifdef'ing for ncurses.h
3200 case "$cf_cv_ncurses_header" in
3202 AC_DEFINE(HAVE_NCURSES_H,1,[Define to 1 if we have ncurses.h])
3206 case "$cf_cv_ncurses_header" in
3207 (ncurses/curses.h|ncurses/ncurses.h)
3208 AC_DEFINE(HAVE_NCURSES_NCURSES_H,1,[Define to 1 if we have ncurses/ncurses.h])
3210 (ncursesw/curses.h|ncursesw/ncurses.h)
3211 AC_DEFINE(HAVE_NCURSESW_NCURSES_H,1,[Define to 1 if we have ncursesw/ncurses.h])
3216 dnl ---------------------------------------------------------------------------
3217 dnl CF_NCURSES_LIBS version: 21 updated: 2021/09/04 06:37:12
3219 dnl Look for the ncurses library. This is a little complicated on Linux,
3220 dnl because it may be linked with the gpm (general purpose mouse) library.
3221 dnl Some distributions have gpm linked with (bsd) curses, which makes it
3222 dnl unusable with ncurses. However, we don't want to link with gpm unless
3223 dnl ncurses has a dependency, since gpm is normally set up as a shared library,
3224 dnl and the linker will record a dependency.
3226 dnl The optional parameter gives the root name of the library, in case it is
3227 dnl not installed as the default curses library. That is how the
3228 dnl wide-character version of ncurses is installed.
3229 AC_DEFUN([CF_NCURSES_LIBS],
3230 [AC_REQUIRE([CF_NCURSES_CPPFLAGS])
3232 cf_nculib_root=ifelse($1,,ncurses,$1)
3233 # This works, except for the special case where we find gpm, but
3234 # ncurses is in a nonstandard location via $LIBS, and we really want
3237 cf_ncurses_SAVE="$LIBS"
3238 AC_CHECK_LIB(gpm,Gpm_Open,
3239 [AC_CHECK_LIB(gpm,initscr,
3240 [LIBS="$cf_ncurses_SAVE"],
3241 [cf_ncurses_LIBS="-lgpm"])])
3245 # This is only necessary if you are linking against an obsolete
3246 # version of ncurses (but it should do no harm, since it is static).
3247 if test "$cf_nculib_root" = ncurses ; then
3248 AC_CHECK_LIB(mytinfo,tgoto,[cf_ncurses_LIBS="-lmytinfo $cf_ncurses_LIBS"])
3253 CF_ADD_LIBS($cf_ncurses_LIBS)
3255 if test -n "$cf_cv_curses_dir" && test "$cf_cv_curses_dir" != "no"
3257 CF_ADD_LIBS(-l$cf_nculib_root)
3259 CF_FIND_LIBRARY($cf_nculib_root,$cf_nculib_root,
3260 [#include <${cf_cv_ncurses_header:-curses.h}>],
3265 if test -n "$cf_ncurses_LIBS" ; then
3266 AC_MSG_CHECKING(if we can link $cf_nculib_root without $cf_ncurses_LIBS)
3267 cf_ncurses_SAVE="$LIBS"
3268 for p in $cf_ncurses_LIBS ; do
3269 q=`echo "$LIBS" | sed -e "s%$p %%" -e "s%$p$%%"`
3270 if test "$q" != "$LIBS" ; then
3274 AC_TRY_LINK([#include <${cf_cv_ncurses_header:-curses.h}>],
3275 [initscr(); mousemask(0,0); tigetstr((char *)0);],
3276 [AC_MSG_RESULT(yes)],
3278 LIBS="$cf_ncurses_SAVE"])
3281 CF_UPPER(cf_nculib_ROOT,HAVE_LIB$cf_nculib_root)
3282 AC_DEFINE_UNQUOTED($cf_nculib_ROOT)
3284 dnl ---------------------------------------------------------------------------
3285 dnl CF_NCURSES_VERSION version: 17 updated: 2023/01/05 18:54:02
3286 dnl ------------------
3287 dnl Check for the version of ncurses, to aid in reporting bugs, etc.
3288 dnl Call CF_CURSES_CPPFLAGS first, or CF_NCURSES_CPPFLAGS. We don't use
3289 dnl AC_REQUIRE since that does not work with the shell's if/then/else/fi.
3290 AC_DEFUN([CF_NCURSES_VERSION],
3292 AC_REQUIRE([CF_CURSES_CPPFLAGS])dnl
3293 AC_CACHE_CHECK(for ncurses version, cf_cv_ncurses_version,[
3294 cf_cv_ncurses_version=no
3296 rm -f "$cf_tempfile"
3298 $ac_includes_default
3300 #include <${cf_cv_ncurses_header:-curses.h}>
3304 FILE *fp = fopen("$cf_tempfile", "w");
3305 #ifdef NCURSES_VERSION
3306 # ifdef NCURSES_VERSION_PATCH
3307 fprintf(fp, "%s.%d\\n", NCURSES_VERSION, NCURSES_VERSION_PATCH);
3309 fprintf(fp, "%s\\n", NCURSES_VERSION);
3313 fprintf(fp, "old\\n");
3318 ${cf_cv_main_return:-return}(0);
3320 cf_cv_ncurses_version=`cat $cf_tempfile`],,[
3322 # This will not work if the preprocessor splits the line after the
3323 # Autoconf token. The 'unproto' program does that.
3324 cat > "conftest.$ac_ext" <<EOF
3325 #include <${cf_cv_ncurses_header:-curses.h}>
3327 #ifdef NCURSES_VERSION
3328 Autoconf NCURSES_VERSION
3336 cf_try="$ac_cpp conftest.$ac_ext 2>&AC_FD_CC | grep '^Autoconf ' >conftest.out"
3338 if test -f conftest.out ; then
3339 cf_out=`sed -e 's%^Autoconf %%' -e 's%^[[^"]]*"%%' -e 's%".*%%' conftest.out`
3340 test -n "$cf_out" && cf_cv_ncurses_version="$cf_out"
3344 rm -f "$cf_tempfile"
3346 test "$cf_cv_ncurses_version" = no || AC_DEFINE(NCURSES,1,[Define to 1 if we are using ncurses headers/libraries])
3348 dnl ---------------------------------------------------------------------------
3349 dnl CF_OBJ_SUBDIR version: 8 updated: 2021/01/01 13:31:04
3351 dnl Compute the object-directory name from the given model name
3352 AC_DEFUN([CF_OBJ_SUBDIR],
3355 (libtool) $2='obj_lo' ;;
3356 (normal) $2='objects' ;;
3357 (debug) $2='obj_g' ;;
3358 (profile) $2='obj_p' ;;
3360 case "$cf_cv_system_name" in
3368 dnl ---------------------------------------------------------------------------
3369 dnl CF_PATHSEP version: 8 updated: 2021/01/01 13:31:04
3371 dnl Provide a value for the $PATH and similar separator (or amend the value
3372 dnl as provided in autoconf 2.5x).
3373 AC_DEFUN([CF_PATHSEP],
3375 AC_MSG_CHECKING(for PATH separator)
3376 case "$cf_cv_system_name" in
3377 (os2*) PATH_SEPARATOR=';' ;;
3378 (*) ${PATH_SEPARATOR:=':'} ;;
3380 ifelse([$1],,,[$1=$PATH_SEPARATOR])
3381 AC_SUBST(PATH_SEPARATOR)
3382 AC_MSG_RESULT($PATH_SEPARATOR)
3384 dnl ---------------------------------------------------------------------------
3385 dnl CF_PATH_SYNTAX version: 18 updated: 2020/12/31 18:40:20
3387 dnl Check the argument to see that it looks like a pathname. Rewrite it if it
3388 dnl begins with one of the prefix/exec_prefix variables, and then again if the
3389 dnl result begins with 'NONE'. This is necessary to work around autoconf's
3390 dnl delayed evaluation of those symbols.
3391 AC_DEFUN([CF_PATH_SYNTAX],[
3392 if test "x$prefix" != xNONE; then
3393 cf_path_syntax="$prefix"
3395 cf_path_syntax="$ac_default_prefix"
3399 (.\[$]\(*\)*|.\'*\'*)
3403 (.[[a-zA-Z]]:[[\\/]]*) # OS/2 EMX
3405 (.\[$]\{*prefix\}*|.\[$]\{*dir\}*)
3409 $1=`echo "[$]$1" | sed -e s%NONE%$cf_path_syntax%`
3414 $1=`echo "[$]$1" | sed -e s%NONE%$cf_path_syntax%`
3417 ifelse([$2],,[AC_MSG_ERROR([expected a pathname, not \"[$]$1\"])],$2)
3421 dnl ---------------------------------------------------------------------------
3422 dnl CF_PKG_CONFIG version: 12 updated: 2021/10/10 20:18:09
3424 dnl Check for the package-config program, unless disabled by command-line.
3426 dnl Sets $PKG_CONFIG to the pathname of the pkg-config program.
3427 AC_DEFUN([CF_PKG_CONFIG],
3429 AC_MSG_CHECKING(if you want to use pkg-config)
3430 AC_ARG_WITH(pkg-config,
3431 [ --with-pkg-config{=path} enable/disable use of pkg-config],
3432 [cf_pkg_config=$withval],
3433 [cf_pkg_config=yes])
3434 AC_MSG_RESULT($cf_pkg_config)
3436 case "$cf_pkg_config" in
3441 CF_ACVERSION_CHECK(2.52,
3442 [AC_PATH_TOOL(PKG_CONFIG, pkg-config, none)],
3443 [AC_PATH_PROG(PKG_CONFIG, pkg-config, none)])
3450 test -z "$PKG_CONFIG" && PKG_CONFIG=none
3451 if test "$PKG_CONFIG" != none ; then
3452 CF_PATH_SYNTAX(PKG_CONFIG)
3453 elif test "x$cf_pkg_config" != xno ; then
3454 AC_MSG_WARN(pkg-config is not installed)
3457 AC_SUBST(PKG_CONFIG)
3459 dnl ---------------------------------------------------------------------------
3460 dnl CF_POSIX_C_SOURCE version: 12 updated: 2023/02/18 17:41:25
3461 dnl -----------------
3462 dnl Define _POSIX_C_SOURCE to the given level, and _POSIX_SOURCE if needed.
3464 dnl POSIX.1-1990 _POSIX_SOURCE
3465 dnl POSIX.1-1990 and _POSIX_SOURCE and
3466 dnl POSIX.2-1992 C-Language _POSIX_C_SOURCE=2
3468 dnl POSIX.1b-1993 _POSIX_C_SOURCE=199309L
3469 dnl POSIX.1c-1996 _POSIX_C_SOURCE=199506L
3470 dnl X/Open 2000 _POSIX_C_SOURCE=200112L
3473 dnl $1 is the nominal value for _POSIX_C_SOURCE
3474 AC_DEFUN([CF_POSIX_C_SOURCE],
3475 [AC_REQUIRE([CF_POSIX_VISIBLE])dnl
3477 if test "$cf_cv_posix_visible" = no; then
3479 cf_POSIX_C_SOURCE=ifelse([$1],,199506L,[$1])
3481 cf_save_CFLAGS="$CFLAGS"
3482 cf_save_CPPFLAGS="$CPPFLAGS"
3484 CF_REMOVE_DEFINE(cf_trim_CFLAGS,$cf_save_CFLAGS,_POSIX_C_SOURCE)
3485 CF_REMOVE_DEFINE(cf_trim_CPPFLAGS,$cf_save_CPPFLAGS,_POSIX_C_SOURCE)
3487 AC_CACHE_CHECK(if we should define _POSIX_C_SOURCE,cf_cv_posix_c_source,[
3488 CF_MSG_LOG(if the symbol is already defined go no further)
3489 AC_TRY_COMPILE([#include <sys/types.h>],[
3490 #ifndef _POSIX_C_SOURCE
3491 #error _POSIX_C_SOURCE is not defined
3493 [cf_cv_posix_c_source=no],
3494 [cf_want_posix_source=no
3495 case .$cf_POSIX_C_SOURCE in
3497 cf_cv_posix_c_source="-D_POSIX_C_SOURCE=$cf_POSIX_C_SOURCE"
3500 cf_cv_posix_c_source="-D_POSIX_C_SOURCE=$cf_POSIX_C_SOURCE"
3501 cf_want_posix_source=yes
3504 cf_want_posix_source=yes
3507 if test "$cf_want_posix_source" = yes ; then
3508 AC_TRY_COMPILE([#include <sys/types.h>],[
3509 #ifdef _POSIX_SOURCE
3510 #error _POSIX_SOURCE is defined
3512 cf_cv_posix_c_source="$cf_cv_posix_c_source -D_POSIX_SOURCE")
3514 CF_MSG_LOG(ifdef from value $cf_POSIX_C_SOURCE)
3515 CFLAGS="$cf_trim_CFLAGS"
3516 CPPFLAGS="$cf_trim_CPPFLAGS"
3517 CF_APPEND_TEXT(CPPFLAGS,$cf_cv_posix_c_source)
3518 CF_MSG_LOG(if the second compile does not leave our definition intact error)
3519 AC_TRY_COMPILE([#include <sys/types.h>],[
3520 #ifndef _POSIX_C_SOURCE
3521 #error _POSIX_C_SOURCE is not defined
3523 [cf_cv_posix_c_source=no])
3524 CFLAGS="$cf_save_CFLAGS"
3525 CPPFLAGS="$cf_save_CPPFLAGS"
3529 if test "$cf_cv_posix_c_source" != no ; then
3530 CFLAGS="$cf_trim_CFLAGS"
3531 CPPFLAGS="$cf_trim_CPPFLAGS"
3532 CF_ADD_CFLAGS($cf_cv_posix_c_source)
3535 fi # cf_cv_posix_visible
3538 dnl ---------------------------------------------------------------------------
3539 dnl CF_POSIX_VISIBLE version: 1 updated: 2018/12/31 20:46:17
3540 dnl ----------------
3541 dnl POSIX documents test-macros which an application may set before any system
3542 dnl headers are included to make features available.
3544 dnl Some BSD platforms (originally FreeBSD, but copied by a few others)
3545 dnl diverged from POSIX in 2002 by setting symbols which make all of the most
3546 dnl recent features visible in the system header files unless the application
3547 dnl overrides the corresponding test-macros. Doing that introduces portability
3550 dnl This macro makes a special check for the symbols used for this, to avoid a
3551 dnl conflicting definition.
3552 AC_DEFUN([CF_POSIX_VISIBLE],
3554 AC_CACHE_CHECK(if the POSIX test-macros are already defined,cf_cv_posix_visible,[
3555 AC_TRY_COMPILE([#include <stdio.h>],[
3556 #if defined(__POSIX_VISIBLE) && ((__POSIX_VISIBLE - 0L) > 0) \
3557 && defined(__XSI_VISIBLE) && ((__XSI_VISIBLE - 0L) > 0) \
3558 && defined(__BSD_VISIBLE) && ((__BSD_VISIBLE - 0L) > 0) \
3559 && defined(__ISO_C_VISIBLE) && ((__ISO_C_VISIBLE - 0L) > 0)
3560 #error conflicting symbols found
3562 ],[cf_cv_posix_visible=no],[cf_cv_posix_visible=yes])
3565 dnl ---------------------------------------------------------------------------
3566 dnl CF_PROG_AR version: 1 updated: 2009/01/01 20:15:22
3568 dnl Check for archiver "ar".
3569 AC_DEFUN([CF_PROG_AR],[
3570 AC_CHECK_TOOL(AR, ar, ar)
3572 dnl ---------------------------------------------------------------------------
3573 dnl CF_PROG_AWK version: 1 updated: 2006/09/16 11:40:59
3575 dnl Check for awk, ensure that the check found something.
3576 AC_DEFUN([CF_PROG_AWK],
3579 test -z "$AWK" && AC_MSG_ERROR(No awk program found)
3581 dnl ---------------------------------------------------------------------------
3582 dnl CF_PROG_CC version: 5 updated: 2019/12/31 08:53:54
3584 dnl standard check for CC, plus followup sanity checks
3585 dnl $1 = optional parameter to pass to AC_PROG_CC to specify compiler name
3586 AC_DEFUN([CF_PROG_CC],[
3587 CF_ACVERSION_CHECK(2.53,
3588 [AC_MSG_WARN(this will incorrectly handle gnatgcc choice)
3589 AC_REQUIRE([AC_PROG_CC])],
3591 ifelse($1,,[AC_PROG_CC],[AC_PROG_CC($1)])
3593 CF_ACVERSION_CHECK(2.52,
3598 dnl ---------------------------------------------------------------------------
3599 dnl CF_PROG_CC_C_O version: 6 updated: 2021/01/01 13:31:04
3601 dnl Analogous to AC_PROG_CC_C_O, but more useful: tests only $CC, ensures that
3602 dnl the output file can be renamed, and allows for a shell variable that can
3603 dnl be used later. The parameter is either CC or CXX. The result is the
3605 dnl $cf_cv_prog_CC_c_o
3606 dnl $cf_cv_prog_CXX_c_o
3609 dnl $2 = compiler options, if any
3610 AC_DEFUN([CF_PROG_CC_C_O],
3611 [AC_REQUIRE([AC_PROG_CC])dnl
3612 AC_MSG_CHECKING([whether [$]$1 understands -c and -o together])
3613 AC_CACHE_VAL(cf_cv_prog_$1_c_o,
3615 cat > conftest.$ac_ext <<CF_EOF
3618 ${cf_cv_main_return:-return}(0);
3621 # We do the test twice because some compilers refuse to overwrite an
3622 # existing .o file with -o, though they will create one.
3623 ac_try='[$]$1 $2 -c conftest.$ac_ext -o conftest2.$ac_objext >&AC_FD_CC'
3624 if AC_TRY_EVAL(ac_try) &&
3625 test -f conftest2.$ac_objext && AC_TRY_EVAL(ac_try);
3627 eval cf_cv_prog_$1_c_o=yes
3629 eval cf_cv_prog_$1_c_o=no
3633 if test "$cf_cv_prog_$1_c_o" = yes; then
3634 AC_MSG_RESULT([yes])
3639 dnl ---------------------------------------------------------------------------
3640 dnl CF_PROG_EGREP version: 2 updated: 2015/04/18 08:56:57
3642 dnl AC_PROG_EGREP was introduced in autoconf 2.53.
3643 dnl This macro adds a check to ensure the script found something.
3644 AC_DEFUN([CF_PROG_EGREP],
3645 [AC_CACHE_CHECK([for egrep], [ac_cv_prog_egrep],
3646 [if echo a | (grep -E '(a|b)') >/dev/null 2>&1
3647 then ac_cv_prog_egrep='grep -E'
3648 else ac_cv_prog_egrep='egrep'
3650 EGREP=$ac_cv_prog_egrep
3652 test -z "$EGREP" && AC_MSG_ERROR(No egrep program found)
3654 dnl ---------------------------------------------------------------------------
3655 dnl CF_PROG_EXT version: 15 updated: 2021/01/02 09:31:20
3657 dnl Compute $PROG_EXT, used for non-Unix ports, such as OS/2 EMX.
3658 AC_DEFUN([CF_PROG_EXT],
3660 AC_REQUIRE([CF_CHECK_CACHE])
3661 case "$cf_cv_system_name" in
3663 CFLAGS="$CFLAGS -Zmt"
3664 CF_APPEND_TEXT(CPPFLAGS,-D__ST_MT_ERRNO__)
3665 CXXFLAGS="$CXXFLAGS -Zmt"
3666 # autoconf's macro sets -Zexe and suffix both, which conflict:w
3667 LDFLAGS="$LDFLAGS -Zmt -Zcrtdll"
3677 test -n "$PROG_EXT" && AC_DEFINE_UNQUOTED(PROG_EXT,"$PROG_EXT",[Define to the program extension (normally blank)])
3679 dnl ---------------------------------------------------------------------------
3680 dnl CF_PROG_GNAT version: 12 updated: 2021/01/02 17:09:14
3682 dnl Check for gnat/gnatmake/etc, ensure that the toolset is complete.
3683 AC_DEFUN([CF_PROG_GNAT],[
3684 for cf_prog_gnat in gnat gnatmake gprconfig gprbuild
3686 CF_UPPER(cf_upper_prog_gnat,${cf_prog_gnat})
3688 unset ac_cv_path_cf_TEMP_gnat
3690 AC_PATH_PROG(cf_TEMP_gnat,$cf_prog_gnat,no)
3691 eval "cf_cv_PATH_$cf_upper_prog_gnat=[$]ac_cv_path_cf_TEMP_gnat"
3693 if test "x$cf_TEMP_gnat" != xno; then
3694 unset cf_cv_gnat_version
3696 CF_GNAT_VERSION(cf_TEMP_gnat,$cf_prog_gnat)
3698 eval "cf_cv_VERSION_$cf_upper_prog_gnat=[$]cf_TEMP_gnat"
3701 unset cf_cv_gnat_version
3702 unset ac_cv_path_cf_TEMP_gnat
3705 if test "x$cf_cv_VERSION_GNATMAKE" = "xno"; then
3707 cf_cv_prog_gnat_correct=no
3709 cf_ada_make=gnatmake
3710 if test "x$cf_cv_VERSION_GPRCONFIG" = "xno"; then
3711 # gprconfig is newer than gnatmake; we can continue...
3714 rm -rf ./conftest* ./*~conftest*
3715 if mkdir conftest.src
3719 for cf_gprconfig in Ada C
3721 AC_MSG_CHECKING(for gprconfig name for $cf_gprconfig)
3722 if test "$cf_gprconfig" = C
3724 for cf_gprconfig_param in \
3725 "$cf_gprconfig,,,,GNATGCC" \
3726 "$cf_gprconfig,,,,GCC" \
3729 cf_gprconfig_value=`echo s| gprconfig --config=$cf_gprconfig_param 2>&AC_FD_CC | ${AWK:-awk} '/^\*/{print [$]3;}' | head -n 1`
3730 test -n "$cf_gprconfig_value" && break
3733 cf_gprconfig_param=$cf_gprconfig
3734 cf_gprconfig_value=`echo s| gprconfig --config=$cf_gprconfig_param 2>&AC_FD_CC | ${AWK:-awk} '/^\*/{print [$]3;}' | head -n 1`
3736 if test -n "$cf_gprconfig_value"
3738 eval "cf_ada_config_[$]cf_gprconfig=[$]cf_gprconfig_value"
3739 AC_MSG_RESULT($cf_gprconfig_value)
3741 AC_MSG_RESULT(missing)
3747 rm -rf ./conftest* ./*~conftest*
3750 if test "x$cf_ada_config" != "x#"
3753 CF_CHECK_GNAT_VERSION
3754 AC_CHECK_PROG(M4_exists, m4, yes, no)
3755 if test "$ac_cv_prog_M4_exists" = no; then
3756 cf_cv_prog_gnat_correct=no
3757 AC_MSG_WARN(Ada95 binding required program m4 not found. Ada95 binding disabled)
3759 if test "$cf_cv_prog_gnat_correct" = yes; then
3760 AC_MSG_CHECKING(if GNAT works)
3761 CF_GNAT_TRY_RUN([procedure conftest;],
3764 procedure conftest is
3766 Text_IO.Put ("Hello World");
3768 GNAT.OS_Lib.OS_Exit (0);
3770 [cf_cv_prog_gnat_correct=yes],
3771 [cf_cv_prog_gnat_correct=no])
3772 AC_MSG_RESULT($cf_cv_prog_gnat_correct)
3775 cf_cv_prog_gnat_correct=no
3779 AC_SUBST(cf_ada_make)
3780 AC_SUBST(cf_ada_config)
3781 AC_SUBST(cf_ada_config_Ada)
3782 AC_SUBST(cf_ada_config_C)
3784 dnl ---------------------------------------------------------------------------
3785 dnl CF_PROG_INSTALL version: 10 updated: 2021/01/04 19:33:05
3787 dnl Force $INSTALL to be an absolute-path. Otherwise, edit_man.sh and the
3788 dnl misc/tabset install won't work properly. Usually this happens only when
3789 dnl using the fallback mkinstalldirs script
3790 AC_DEFUN([CF_PROG_INSTALL],
3796 CF_DIRNAME(cf_dir,$INSTALL)
3797 test -z "$cf_dir" && cf_dir=.
3798 INSTALL="`cd \"$cf_dir\" && pwd`"/"`echo "$INSTALL" | sed -e 's%^.*/%%'`"
3802 dnl ---------------------------------------------------------------------------
3803 dnl CF_PROG_LN_S version: 2 updated: 2010/08/14 18:25:37
3805 dnl Combine checks for "ln -s" and "ln -sf", updating $LN_S to include "-f"
3806 dnl option if it is supported.
3807 AC_DEFUN([CF_PROG_LN_S],[
3809 AC_MSG_CHECKING(if $LN_S -f options work)
3811 rm -f conf$$.src conf$$dst
3813 echo first >conf$$.src
3814 if $LN_S -f conf$$.src conf$$.dst 2>/dev/null; then
3819 rm -f conf$$.dst conf$$src
3820 AC_MSG_RESULT($cf_prog_ln_sf)
3822 test "$cf_prog_ln_sf" = yes && LN_S="$LN_S -f"
3824 dnl ---------------------------------------------------------------------------
3825 dnl CF_REMOVE_CFLAGS version: 3 updated: 2021/09/05 17:25:40
3826 dnl ----------------
3827 dnl Remove a given option from CFLAGS/CPPFLAGS
3828 dnl $1 = option to remove
3829 dnl $2 = variable to update
3830 dnl $3 = nonempty to allow verbose message
3831 define([CF_REMOVE_CFLAGS],
3833 cf_tmp_cflag=`echo "x$1" | sed -e 's/^.//' -e 's/=.*//'`
3836 cf_old_cflag=`echo "x[$]$2" | sed -e 's/^.//' -e 's/[[ ]][[ ]]*-/ -/g' -e "s%$cf_tmp_cflag\\(=[[^ ]][[^ ]]*\\)\?%%" -e 's/^[[ ]]*//' -e 's%[[ ]][[ ]]*-D% -D%g' -e 's%[[ ]][[ ]]*-I% -I%g'`
3837 test "[$]$2" != "$cf_old_cflag" || break
3838 ifelse([$3],,,[CF_VERBOSE(removing old option $1 from $2)])
3842 dnl ---------------------------------------------------------------------------
3843 dnl CF_REMOVE_DEFINE version: 3 updated: 2010/01/09 11:05:50
3844 dnl ----------------
3845 dnl Remove all -U and -D options that refer to the given symbol from a list
3846 dnl of C compiler options. This works around the problem that not all
3847 dnl compilers process -U and -D options from left-to-right, so a -U option
3848 dnl cannot be used to cancel the effect of a preceding -D option.
3850 dnl $1 = target (which could be the same as the source variable)
3851 dnl $2 = source (including '$')
3852 dnl $3 = symbol to remove
3853 define([CF_REMOVE_DEFINE],
3856 sed -e 's/-[[UD]]'"$3"'\(=[[^ ]]*\)\?[[ ]]/ /g' \
3857 -e 's/-[[UD]]'"$3"'\(=[[^ ]]*\)\?[$]//g'`
3859 dnl ---------------------------------------------------------------------------
3860 dnl CF_REMOVE_LIB version: 1 updated: 2007/02/17 14:11:52
3862 dnl Remove the given library from the symbol
3864 dnl $1 = target (which could be the same as the source variable)
3865 dnl $2 = source (including '$')
3866 dnl $3 = library to remove
3867 define([CF_REMOVE_LIB],
3869 # remove $3 library from $2
3870 $1=`echo "$2" | sed -e 's/-l$3[[ ]]//g' -e 's/-l$3[$]//'`
3872 dnl ---------------------------------------------------------------------------
3873 dnl CF_RESTORE_XTRA_FLAGS version: 1 updated: 2020/01/11 16:47:45
3874 dnl ---------------------
3875 dnl Restore flags saved in CF_SAVE_XTRA_FLAGS
3876 dnl $1 = name of current macro
3877 define([CF_RESTORE_XTRA_FLAGS],
3879 LIBS="$cf_save_LIBS_$1"
3880 CFLAGS="$cf_save_CFLAGS_$1"
3881 CPPFLAGS="$cf_save_CPPFLAGS_$1"
3883 dnl ---------------------------------------------------------------------------
3884 dnl CF_SAVE_XTRA_FLAGS version: 1 updated: 2020/01/11 16:46:44
3885 dnl ------------------
3886 dnl Use this macro to save CFLAGS/CPPFLAGS/LIBS before checks against X headers
3887 dnl and libraries which do not update those variables.
3889 dnl $1 = name of current macro
3890 define([CF_SAVE_XTRA_FLAGS],
3892 cf_save_LIBS_$1="$LIBS"
3893 cf_save_CFLAGS_$1="$CFLAGS"
3894 cf_save_CPPFLAGS_$1="$CPPFLAGS"
3895 LIBS="$LIBS ${X_PRE_LIBS} ${X_LIBS} ${X_EXTRA_LIBS}"
3896 for cf_X_CFLAGS in $X_CFLAGS
3898 case "x$cf_X_CFLAGS" in
3900 CPPFLAGS="$CPPFLAGS $cf_X_CFLAGS"
3903 CFLAGS="$CFLAGS $cf_X_CFLAGS"
3908 dnl ---------------------------------------------------------------------------
3909 dnl CF_SHARED_OPTS version: 107 updated: 2021/09/04 06:47:34
3912 dnl Attempt to determine the appropriate CC/LD options for creating a shared
3916 dnl a) ${LOCAL_LDFLAGS} is used to link executables that will run within
3917 dnl the build-tree, i.e., by making use of the libraries that are compiled in
3918 dnl $rel_builddir/lib We avoid compiling-in a $rel_builddir/lib path for the
3919 dnl shared library since that can lead to unexpected results at runtime.
3920 dnl b) ${LOCAL_LDFLAGS2} has the same intention but assumes that the shared
3921 dnl libraries are compiled in ../../lib
3923 dnl The variable 'cf_cv_do_symlinks' is used to control whether we configure
3924 dnl to install symbolic links to the rel/abi versions of shared libraries.
3926 dnl The variable 'cf_cv_shlib_version' controls whether we use the rel or abi
3927 dnl version when making symbolic links.
3929 dnl The variable 'cf_cv_shlib_version_infix' controls whether shared library
3930 dnl version numbers are infix (ex: libncurses.<ver>.dylib) or postfix
3931 dnl (ex: libncurses.so.<ver>).
3933 dnl Some loaders leave 'so_locations' lying around. It is nice to clean up.
3934 AC_DEFUN([CF_SHARED_OPTS],
3936 AC_REQUIRE([CF_LD_RPATH_OPT])
3942 INSTALL_LIB="-m 644"
3943 : ${rel_builddir:=.}
3951 cf_cv_do_symlinks=no
3953 test "$cf_cv_enable_rpath" = yes && cf_ld_rpath_opt="$LD_RPATH_OPT"
3955 AC_MSG_CHECKING(if release/abi version should be used for shared libs)
3956 AC_ARG_WITH(shlib-version,
3957 [ --with-shlib-version=X Specify rel or abi version for shared libs],
3958 [test -z "$withval" && withval=auto
3961 cf_cv_shlib_version=auto
3964 cf_cv_shlib_version=$withval
3967 AC_MSG_RESULT($withval)
3968 AC_MSG_ERROR([option value must be one of: rel, abi, or auto])
3971 ],[cf_cv_shlib_version=auto])
3972 AC_MSG_RESULT($cf_cv_shlib_version)
3977 # Some less-capable ports of gcc support only -fpic
3981 if test "$GCC" = yes
3985 case "$cf_cv_system_name" in
3986 (*linux*) # e.g., PGI compiler
3992 if test "$cf_try_fPIC" = yes
3994 AC_MSG_CHECKING(which $CC option to use)
3995 cf_save_CFLAGS="$CFLAGS"
3996 for CC_SHARED_OPTS in -fPIC -fpic ''
3998 CFLAGS="$cf_save_CFLAGS $CC_SHARED_OPTS"
3999 AC_TRY_COMPILE([#include <stdio.h>],[int x = 1],[break],[])
4001 AC_MSG_RESULT($CC_SHARED_OPTS)
4002 CFLAGS="$cf_save_CFLAGS"
4005 cf_cv_shlib_version_infix=no
4007 case "$cf_cv_system_name" in
4008 (aix4.[3-9]*|aix[[5-7]]*)
4009 if test "$GCC" = yes; then
4010 CC_SHARED_OPTS='-Wl,-brtl'
4011 MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -Wl,-brtl -Wl,-blibpath:${RPATH_LIST}:/usr/lib -o [$]@'
4013 CC_SHARED_OPTS='-brtl'
4014 # as well as '-qpic=large -G' or perhaps "-bM:SRE -bnoentry -bexpall"
4015 MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -G -Wl,-brtl -Wl,-blibpath:${RPATH_LIST}:/usr/lib -o [$]@'
4019 MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -o $[@] -Xlinker -soname=`basename $[@]` -nostart -e 0'
4023 MK_SHARED_LIB=$SHELL' '$rel_builddir'/mk_shared_lib.sh [$]@ [$]{CC} [$]{CFLAGS}'
4024 RM_SHARED_OPTS="$RM_SHARED_OPTS $rel_builddir/mk_shared_lib.sh *.dll.a"
4025 cf_cv_shlib_version=cygdll
4026 cf_cv_shlib_version_infix=cygdll
4029 cat >mk_shared_lib.sh <<-CF_EOF
4032 IMPORT_LIB=\`echo "\[$]1" | sed -e 's/cyg/lib/' -e 's/[[0-9]]*\.dll[$]/.dll.a/'\`
4035 Linking shared library
4036 ** SHARED_LIB \[$]SHARED_LIB
4037 ** IMPORT_LIB \[$]IMPORT_LIB
4039 exec \[$]* ${LDFLAGS} -shared -Wl,--out-implib=\[$]{IMPORT_LIB} -Wl,--export-all-symbols -o \[$]{SHARED_LIB}
4041 chmod +x mk_shared_lib.sh
4045 MK_SHARED_LIB=$SHELL' '$rel_builddir'/mk_shared_lib.sh [$]@ [$]{CC} [$]{CFLAGS}'
4046 RM_SHARED_OPTS="$RM_SHARED_OPTS $rel_builddir/mk_shared_lib.sh *.dll.a"
4047 cf_cv_shlib_version=msysdll
4048 cf_cv_shlib_version_infix=msysdll
4051 cat >mk_shared_lib.sh <<-CF_EOF
4054 IMPORT_LIB=\`echo "\[$]1" | sed -e 's/msys-/lib/' -e 's/[[0-9]]*\.dll[$]/.dll.a/'\`
4057 Linking shared library
4058 ** SHARED_LIB \[$]SHARED_LIB
4059 ** IMPORT_LIB \[$]IMPORT_LIB
4061 exec \[$]* ${LDFLAGS} -shared -Wl,--out-implib=\[$]{IMPORT_LIB} -Wl,--export-all-symbols -o \[$]{SHARED_LIB}
4063 chmod +x mk_shared_lib.sh
4066 cf_try_cflags="no-cpp-precomp"
4067 CC_SHARED_OPTS="-dynamic"
4068 MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -dynamiclib -install_name ${libdir}/`basename $[@]` -compatibility_version ${ABI_VERSION} -current_version ${ABI_VERSION} -o $[@]'
4069 test "$cf_cv_shlib_version" = auto && cf_cv_shlib_version=abi
4070 cf_cv_shlib_version_infix=yes
4071 AC_CACHE_CHECK([if ld -search_paths_first works], cf_cv_ldflags_search_paths_first, [
4072 cf_save_LDFLAGS=$LDFLAGS
4073 LDFLAGS="$LDFLAGS -Wl,-search_paths_first"
4074 AC_TRY_LINK(, [int i;], cf_cv_ldflags_search_paths_first=yes, cf_cv_ldflags_search_paths_first=no)
4075 LDFLAGS=$cf_save_LDFLAGS])
4076 if test "$cf_cv_ldflags_search_paths_first" = yes; then
4077 LDFLAGS="$LDFLAGS -Wl,-search_paths_first"
4082 MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -Wl,-soname,'$cf_cv_shared_soname',-stats,-lc -o $[@]'
4085 # HP-UX 8.07 ld lacks "+b" option used for libdir search-list
4086 if test "$GCC" != yes; then
4089 MK_SHARED_LIB='${LD} ${LDFLAGS} -b -o $[@]'
4090 INSTALL_LIB="-m 555"
4093 # (tested with gcc 2.7.2 -- I don't have c89)
4094 if test "$GCC" = yes; then
4095 LD_SHARED_OPTS='-Xlinker +b -Xlinker ${libdir}'
4098 LD_SHARED_OPTS='-Wl,+b,${libdir}'
4100 MK_SHARED_LIB='${LD} ${LDFLAGS} +b ${libdir} -b -o $[@]'
4101 # HP-UX shared libraries must be executable, and should be
4102 # readonly to exploit a quirk in the memory manager.
4103 INSTALL_LIB="-m 555"
4106 test "$cf_cv_shlib_version" = auto && cf_cv_shlib_version=rel
4107 if test "$cf_cv_shlib_version" = rel; then
4108 cf_shared_soname='`basename $[@] .${REL_VERSION}`.${ABI_VERSION}'
4110 cf_shared_soname='`basename $[@]`'
4113 MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -Wl,-rpath,${RPATH_LIST} -Wl,-h,'$cf_shared_soname' -o $[@]'
4116 if test "$cf_cv_enable_rpath" = yes ; then
4117 EXTRA_LDFLAGS="${cf_ld_rpath_opt}\${RPATH_LIST} $EXTRA_LDFLAGS"
4119 # tested with IRIX 5.2 and 'cc'.
4120 if test "$GCC" != yes; then
4121 CC_SHARED_OPTS='-KPIC'
4122 MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -rdata_shared -soname `basename $[@]` -o $[@]'
4124 MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -Wl,-soname,`basename $[@]` -o $[@]'
4126 cf_cv_rm_so_locs=yes
4128 (linux*|gnu*|k*bsd*-gnu)
4129 if test "$DFT_LWR_MODEL" = "shared" && test -n "$LD_RPATH_OPT" ; then
4130 LOCAL_LDFLAGS="${LD_RPATH_OPT}\$(LOCAL_LIBDIR)"
4131 LOCAL_LDFLAGS2="$LOCAL_LDFLAGS"
4133 if test "$cf_cv_enable_rpath" = yes ; then
4134 EXTRA_LDFLAGS="${cf_ld_rpath_opt}\${RPATH_LIST} $EXTRA_LDFLAGS"
4137 MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -Wl,-soname,'$cf_cv_shared_soname',-stats,-lc -o $[@]'
4140 cf_cv_shlib_version=msvcdll
4141 cf_cv_shlib_version_infix=msvcdll
4144 if test "$DFT_LWR_MODEL" = "shared" ; then
4145 LOCAL_LDFLAGS="-link -dll"
4146 LOCAL_LDFLAGS2="$LOCAL_LDFLAGS"
4147 EXTRA_LDFLAGS="-link -dll $EXTRA_LDFLAGS"
4150 MK_SHARED_LIB=$SHELL' '$rel_builddir'/mk_shared_lib.sh [$]@ ${LD} [$]{CFLAGS}'
4151 RM_SHARED_OPTS="$RM_SHARED_OPTS $rel_builddir/mk_shared_lib.sh *.dll.lib"
4152 cat >mk_shared_lib.sh <<-CF_EOF
4155 IMPORT_LIB=\`echo "\[$]1" | sed -e 's/[[0-9]]*\.dll[$]/.dll.lib/'\`
4160 Linking shared library
4161 ** SHARED LIB \$SHARED_LIB
4162 ** IMPORT_LIB \$IMPORT_LIB
4164 args=\$(echo \[$]* | sed -E "s#-l(\w*)#\1.dll.lib#g" | sed -E "s#-L(\w*)#-LIBPATH:\1#g")
4165 exec \$my_ld -DLL -IMPLIB:"\${IMPORT_LIB}" -OUT:"\${SHARED_LIB}" ${LDFLAGS} \$args
4166 mv "\${IMPORT_LIB}" "\${IMPORT_LIB}"
4168 chmod +x mk_shared_lib.sh
4169 cat >mk_prog.sh <<-CF_EOF
4172 # Ignore first argument (compiler) and use LD (link.exe) unconditionally
4175 ldopts=("/subsystem:console")
4178 while test \[$]# -gt 0; do
4181 # ignore -link argument
4183 -M[[TD]] | -M[[TD]]d)
4184 # ignore runtime-library option
4199 libs+=("\`echo \"\[$]1\" | sed \"s/^-l//\"\`")
4202 ldopts+=("\`echo \"\[$]1\" | sed \"s/^-L/-LIBPATH:/\"\`")
4208 for linkarg in \`echo '\[$]1' | sed -e 's/-Wl,//' -e 's/,/ /'\`; do
4209 ldopts+=("\[$]{linkarg}")
4217 ldopts+=("-out:\[$]1")
4226 if [[ "\$isdll" -ne 0 ]]; then
4227 for lib in \[$]{libs[[*]]}; do
4228 ldopts+=("\[$]lib.dll.lib")
4231 for lib in \[$]{libs[[*]]}; do
4232 ldopts+=("\[$]lib.lib")
4237 ** ld options: "\[$]{ldopts[[@]]}"
4239 exec \[$]LD \[$]{ldopts[[@]]}
4242 LINK_PROGS="$SHELL ${rel_builddir}/mk_prog.sh"
4243 LINK_TESTS="$SHELL ${rel_builddir}/mk_prog.sh"
4246 cf_cv_shlib_version=mingw
4247 cf_cv_shlib_version_infix=mingw
4250 if test "$DFT_LWR_MODEL" = "shared" ; then
4251 LOCAL_LDFLAGS="-Wl,--enable-auto-import"
4252 LOCAL_LDFLAGS2="$LOCAL_LDFLAGS"
4253 EXTRA_LDFLAGS="-Wl,--enable-auto-import $EXTRA_LDFLAGS"
4256 MK_SHARED_LIB=$SHELL' '$rel_builddir'/mk_shared_lib.sh [$]@ [$]{CC} [$]{CFLAGS}'
4257 RM_SHARED_OPTS="$RM_SHARED_OPTS $rel_builddir/mk_shared_lib.sh *.dll.a"
4258 cat >mk_shared_lib.sh <<-CF_EOF
4261 IMPORT_LIB=\`echo "\[$]1" | sed -e 's/[[0-9]]*\.dll[$]/.dll.a/'\`
4264 Linking shared library
4265 ** SHARED_LIB \[$]SHARED_LIB
4266 ** IMPORT_LIB \[$]IMPORT_LIB
4268 exec \[$]* ${LDFLAGS} -shared -Wl,--enable-auto-import,--out-implib=\[$]{IMPORT_LIB} -Wl,--export-all-symbols -o \[$]{SHARED_LIB}
4270 chmod +x mk_shared_lib.sh
4272 (openbsd[[2-9]].*|mirbsd*)
4273 if test "$DFT_LWR_MODEL" = "shared" && test -n "$LD_RPATH_OPT" ; then
4274 LOCAL_LDFLAGS="${LD_RPATH_OPT}\$(LOCAL_LIBDIR)"
4275 LOCAL_LDFLAGS2="$LOCAL_LDFLAGS"
4277 if test "$cf_cv_enable_rpath" = yes ; then
4278 EXTRA_LDFLAGS="${cf_ld_rpath_opt}\${RPATH_LIST} $EXTRA_LDFLAGS"
4280 CC_SHARED_OPTS="$CC_SHARED_OPTS -DPIC"
4282 MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -Wl,-Bshareable,-soname,'$cf_cv_shared_soname',-stats,-lc -o $[@]'
4286 MK_SHARED_LIB='${LD} -Wshared -Weld=-export_all -o $[@]'
4290 MK_SHARED_LIB='${LD} -Wshared -Wxld=-export_all -o $[@]'
4292 (nto-qnx*|openbsd*|freebsd[[12]].*)
4293 CC_SHARED_OPTS="$CC_SHARED_OPTS -DPIC"
4294 MK_SHARED_LIB='${LD} ${LDFLAGS} -Bshareable -o $[@]'
4295 test "$cf_cv_shlib_version" = auto && cf_cv_shlib_version=rel
4297 (dragonfly*|freebsd*)
4298 CC_SHARED_OPTS="$CC_SHARED_OPTS -DPIC"
4299 if test "$DFT_LWR_MODEL" = "shared" && test "$cf_cv_enable_rpath" = yes ; then
4300 LOCAL_LDFLAGS="${cf_ld_rpath_opt}\$(LOCAL_LIBDIR)"
4301 LOCAL_LDFLAGS2="${cf_ld_rpath_opt}\${RPATH_LIST} $LOCAL_LDFLAGS"
4302 EXTRA_LDFLAGS="${cf_ld_rpath_opt}\${RPATH_LIST} $EXTRA_LDFLAGS"
4305 MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -Wl,-soname,'$cf_cv_shared_soname',-stats,-lc -o $[@]'
4308 CC_SHARED_OPTS="$CC_SHARED_OPTS -DPIC"
4309 if test "$DFT_LWR_MODEL" = "shared" && test "$cf_cv_enable_rpath" = yes ; then
4310 LOCAL_LDFLAGS="${cf_ld_rpath_opt}\$(LOCAL_LIBDIR)"
4311 LOCAL_LDFLAGS2="$LOCAL_LDFLAGS"
4312 EXTRA_LDFLAGS="${cf_ld_rpath_opt}\${RPATH_LIST} $EXTRA_LDFLAGS"
4313 if test "$cf_cv_shlib_version" = auto; then
4314 if test -f /usr/libexec/ld.elf_so; then
4315 cf_cv_shlib_version=abi
4317 cf_cv_shlib_version=rel
4321 MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -Wl,-soname,'$cf_cv_shared_soname' -o $[@]'
4323 MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -o $[@]'
4327 # tested with OSF/1 V3.2 and 'cc'
4328 # tested with OSF/1 V3.2 and gcc 2.6.3 (but the c++ demo didn't
4329 # link with shared libs).
4330 MK_SHARED_LIB='${LD} ${LDFLAGS} -set_version ${REL_VERSION}:${ABI_VERSION} -expect_unresolved "*" -shared -soname `basename $[@]`'
4333 MK_SHARED_LIB="${MK_SHARED_LIB} -msym"
4336 MK_SHARED_LIB="${MK_SHARED_LIB}"' -o $[@]'
4337 if test "$DFT_LWR_MODEL" = "shared" && test -n "$LD_RPATH_OPT" ; then
4338 LOCAL_LDFLAGS="${LD_RPATH_OPT}\$(LOCAL_LIBDIR)"
4339 LOCAL_LDFLAGS2="$LOCAL_LDFLAGS"
4341 cf_cv_rm_so_locs=yes
4343 (sco3.2v5*) # also uw2* and UW7: hops 13-Apr-98
4344 # tested with osr5.0.5
4345 if test "$GCC" != yes; then
4346 CC_SHARED_OPTS='-belf -KPIC'
4348 MK_SHARED_LIB='${LD} ${LDFLAGS} -dy -G -h `basename $[@] .${REL_VERSION}`.${ABI_VERSION} -o [$]@'
4349 if test "$cf_cv_enable_rpath" = yes ; then
4350 # only way is to set LD_RUN_PATH but no switch for it
4353 test "$cf_cv_shlib_version" = auto && cf_cv_shlib_version=rel
4354 LINK_PROGS='LD_RUN_PATH=${libdir}'
4355 LINK_TESTS='Pwd=`pwd`;LD_RUN_PATH=`dirname $${Pwd}`/lib'
4358 # tested with SunOS 4.1.1 and gcc 2.7.0
4359 if test "$GCC" != yes; then
4360 CC_SHARED_OPTS='-KPIC'
4362 MK_SHARED_LIB='${LD} ${LDFLAGS} -assert pure-text -o $[@]'
4363 test "$cf_cv_shlib_version" = auto && cf_cv_shlib_version=rel
4366 # tested with SunOS 5.5.1 (solaris 2.5.1) and gcc 2.7.2
4367 # tested with SunOS 5.10 (solaris 10) and gcc 3.4.3
4368 if test "$DFT_LWR_MODEL" = "shared" ; then
4369 LOCAL_LDFLAGS="-R \$(LOCAL_LIBDIR):\${libdir}"
4370 LOCAL_LDFLAGS2="$LOCAL_LDFLAGS"
4372 if test "$cf_cv_enable_rpath" = yes ; then
4373 EXTRA_LDFLAGS="-R \${libdir} $EXTRA_LDFLAGS"
4376 if test "$GCC" != yes; then
4377 cf_save_CFLAGS="$CFLAGS"
4378 for cf_shared_opts in -xcode=pic32 -xcode=pic13 -KPIC -Kpic -O
4380 CFLAGS="$cf_shared_opts $cf_save_CFLAGS"
4381 AC_TRY_COMPILE([#include <stdio.h>],[printf("Hello\\n");],[break])
4383 CFLAGS="$cf_save_CFLAGS"
4384 CC_SHARED_OPTS=$cf_shared_opts
4385 MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -dy -G -h '$cf_cv_shared_soname' -o $[@]'
4387 MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -dy -G -h '$cf_cv_shared_soname' -o $[@]'
4390 (sysv5uw7*|unix_sv*)
4391 # tested with UnixWare 7.1.0 (gcc 2.95.2 and cc)
4392 if test "$GCC" != yes; then
4393 CC_SHARED_OPTS='-KPIC'
4395 MK_SHARED_LIB='${LD} ${LDFLAGS} -d y -G -o [$]@'
4398 CC_SHARED_OPTS='unknown'
4399 MK_SHARED_LIB='echo unknown'
4403 # This works if the last tokens in $MK_SHARED_LIB are the -o target.
4404 case "$cf_cv_shlib_version" in
4406 case "$MK_SHARED_LIB" in
4408 test "$cf_cv_do_symlinks" = no && cf_cv_do_symlinks=yes
4411 AC_MSG_WARN(ignored --with-shlib-version)
4417 if test -n "$cf_try_cflags"
4419 cat > conftest.$ac_ext <<EOF
4420 #line __oline__ "${as_me:-configure}"
4422 int main(int argc, char *argv[[]])
4425 return (argv[[argc-1]] == 0) ;
4428 cf_save_CFLAGS="$CFLAGS"
4429 for cf_opt in $cf_try_cflags
4431 CFLAGS="$cf_save_CFLAGS -$cf_opt"
4432 AC_MSG_CHECKING(if CFLAGS option -$cf_opt works)
4433 if AC_TRY_EVAL(ac_compile); then
4435 cf_save_CFLAGS="$CFLAGS"
4440 CFLAGS="$cf_save_CFLAGS"
4444 # RPATH_LIST is a colon-separated list of directories
4445 test -n "$cf_ld_rpath_opt" && MK_SHARED_LIB="$MK_SHARED_LIB $cf_ld_rpath_opt\${RPATH_LIST}"
4446 test -z "$RPATH_LIST" && RPATH_LIST="\${libdir}"
4448 test "$cf_cv_rm_so_locs" = yes && RM_SHARED_OPTS="$RM_SHARED_OPTS so_locations"
4450 CF_VERBOSE(CC_SHARED_OPTS: $CC_SHARED_OPTS)
4451 CF_VERBOSE(MK_SHARED_LIB: $MK_SHARED_LIB)
4453 AC_SUBST(CC_SHARED_OPTS)
4454 AC_SUBST(LD_RPATH_OPT)
4455 AC_SUBST(LD_SHARED_OPTS)
4456 AC_SUBST(MK_SHARED_LIB)
4457 AC_SUBST(RM_SHARED_OPTS)
4459 AC_SUBST(LINK_PROGS)
4460 AC_SUBST(LINK_TESTS)
4462 AC_SUBST(EXTRA_LDFLAGS)
4463 AC_SUBST(LOCAL_LDFLAGS)
4464 AC_SUBST(LOCAL_LDFLAGS2)
4466 AC_SUBST(INSTALL_LIB)
4467 AC_SUBST(RPATH_LIST)
4469 dnl ---------------------------------------------------------------------------
4470 dnl CF_SHARED_SONAME version: 3 updated: 2008/09/08 18:34:43
4471 dnl ----------------
4472 dnl utility macro for CF_SHARED_OPTS, constructs "$cf_cv_shared_soname" for
4473 dnl substitution into MK_SHARED_LIB string for the "-soname" (or similar)
4476 dnl $1 is the default that should be used for "$cf_cv_shlib_version".
4477 dnl If missing, use "rel".
4478 define([CF_SHARED_SONAME],
4480 test "$cf_cv_shlib_version" = auto && cf_cv_shlib_version=ifelse($1,,rel,$1)
4481 if test "$cf_cv_shlib_version" = rel; then
4482 cf_cv_shared_soname='`basename $[@] .${REL_VERSION}`.${ABI_VERSION}'
4484 cf_cv_shared_soname='`basename $[@]`'
4487 dnl ---------------------------------------------------------------------------
4488 dnl CF_STRIP_G_OPT version: 4 updated: 2021/01/02 09:31:20
4490 dnl Remove "-g" option from the compiler options
4491 AC_DEFUN([CF_STRIP_G_OPT],
4492 [$1=`echo "${$1}" | CF__SED_TRIMBLANKS(-e 's%-g %%' -e 's%-g$%%')`])dnl
4493 dnl ---------------------------------------------------------------------------
4494 dnl CF_SUBDIR_PATH version: 7 updated: 2014/12/04 04:33:06
4496 dnl Construct a search-list for a nonstandard header/lib-file
4497 dnl $1 = the variable to return as result
4498 dnl $2 = the package name
4499 dnl $3 = the subdirectory, e.g., bin, include or lib
4500 AC_DEFUN([CF_SUBDIR_PATH],
4504 CF_ADD_SUBDIR_PATH($1,$2,$3,$prefix,NONE)
4506 for cf_subdir_prefix in \
4514 CF_ADD_SUBDIR_PATH($1,$2,$3,$cf_subdir_prefix,$prefix)
4517 dnl ---------------------------------------------------------------------------
4518 dnl CF_TERM_HEADER version: 6 updated: 2021/01/02 09:31:20
4520 dnl Look for term.h, which is part of X/Open curses. It defines the interface
4521 dnl to terminfo database. Usually it is in the same include-path as curses.h,
4522 dnl but some packagers change this, breaking various applications.
4523 AC_DEFUN([CF_TERM_HEADER],[
4524 AC_CACHE_CHECK(for terminfo header, cf_cv_term_header,[
4525 case "${cf_cv_ncurses_header}" in
4526 (*/ncurses.h|*/ncursesw.h)
4527 cf_term_header=`echo "$cf_cv_ncurses_header" | sed -e 's%ncurses[[^.]]*\.h$%term.h%'`
4530 cf_term_header=term.h
4534 for cf_test in $cf_term_header "ncurses/term.h" "ncursesw/term.h"
4536 AC_TRY_COMPILE([#include <stdio.h>
4537 #include <${cf_cv_ncurses_header:-curses.h}>
4539 ],[int x = auto_left_margin; (void)x],[
4540 cf_cv_term_header="$cf_test"],[
4541 cf_cv_term_header=unknown
4543 test "$cf_cv_term_header" != unknown && break
4547 # Set definitions to allow ifdef'ing to accommodate subdirectories
4549 case "$cf_cv_term_header" in
4551 AC_DEFINE(HAVE_TERM_H,1,[Define to 1 if we have term.h])
4555 case "$cf_cv_term_header" in
4557 AC_DEFINE(HAVE_NCURSES_TERM_H,1,[Define to 1 if we have ncurses/term.h])
4560 AC_DEFINE(HAVE_NCURSESW_TERM_H,1,[Define to 1 if we have ncursesw/term.h])
4564 dnl ---------------------------------------------------------------------------
4565 dnl CF_TOP_BUILDDIR version: 2 updated: 2013/07/27 17:38:32
4567 dnl Define a top_builddir symbol, for applications that need an absolute path.
4568 AC_DEFUN([CF_TOP_BUILDDIR],
4570 top_builddir=ifelse($1,,`pwd`,$1)
4571 AC_SUBST(top_builddir)
4573 dnl ---------------------------------------------------------------------------
4574 dnl CF_TRY_XOPEN_SOURCE version: 4 updated: 2022/09/10 15:16:16
4575 dnl -------------------
4576 dnl If _XOPEN_SOURCE is not defined in the compile environment, check if we
4577 dnl can define it successfully.
4578 AC_DEFUN([CF_TRY_XOPEN_SOURCE],[
4579 AC_CACHE_CHECK(if we should define _XOPEN_SOURCE,cf_cv_xopen_source,[
4580 AC_TRY_COMPILE(CF__XOPEN_SOURCE_HEAD,CF__XOPEN_SOURCE_BODY,
4581 [cf_cv_xopen_source=no],
4582 [cf_save="$CPPFLAGS"
4583 CF_APPEND_TEXT(CPPFLAGS,-D_XOPEN_SOURCE=$cf_XOPEN_SOURCE)
4584 AC_TRY_COMPILE(CF__XOPEN_SOURCE_HEAD,CF__XOPEN_SOURCE_BODY,
4585 [cf_cv_xopen_source=no],
4586 [cf_cv_xopen_source=$cf_XOPEN_SOURCE])
4591 if test "$cf_cv_xopen_source" != no ; then
4592 CF_REMOVE_DEFINE(CFLAGS,$CFLAGS,_XOPEN_SOURCE)
4593 CF_REMOVE_DEFINE(CPPFLAGS,$CPPFLAGS,_XOPEN_SOURCE)
4594 cf_temp_xopen_source="-D_XOPEN_SOURCE=$cf_cv_xopen_source"
4595 CF_APPEND_CFLAGS($cf_temp_xopen_source)
4598 dnl ---------------------------------------------------------------------------
4599 dnl CF_UPPER version: 5 updated: 2001/01/29 23:40:59
4601 dnl Make an uppercase version of a variable
4602 dnl $1=uppercase($2)
4603 AC_DEFUN([CF_UPPER],
4605 $1=`echo "$2" | sed y%abcdefghijklmnopqrstuvwxyz./-%ABCDEFGHIJKLMNOPQRSTUVWXYZ___%`
4607 dnl ---------------------------------------------------------------------------
4608 dnl CF_UTF8_LIB version: 10 updated: 2023/01/11 04:05:23
4610 dnl Check for multibyte support, and if not found, utf8 compatibility library
4611 AC_DEFUN([CF_UTF8_LIB],
4613 AC_HAVE_HEADERS(wchar.h)
4614 AC_CACHE_CHECK(for multibyte character support,cf_cv_utf8_lib,[
4615 cf_save_LIBS="$LIBS"
4617 $ac_includes_default
4622 [cf_cv_utf8_lib=yes],
4624 #include <libutf8.h>],[putwc(0,0);],utf8,
4625 [cf_cv_utf8_lib=add-on],
4626 [cf_cv_utf8_lib=no])
4629 # HAVE_LIBUTF8_H is used by ncurses if curses.h is shared between
4631 if test "$cf_cv_utf8_lib" = "add-on" ; then
4632 AC_DEFINE(HAVE_LIBUTF8_H,1,[Define to 1 if we should include libutf8.h])
4633 CF_ADD_INCDIR($cf_cv_header_path_utf8)
4634 CF_ADD_LIBDIR($cf_cv_library_path_utf8)
4635 CF_ADD_LIBS($cf_cv_library_file_utf8)
4638 dnl ---------------------------------------------------------------------------
4639 dnl CF_VERBOSE version: 3 updated: 2007/07/29 09:55:12
4641 dnl Use AC_VERBOSE w/o the warnings
4642 AC_DEFUN([CF_VERBOSE],
4643 [test -n "$verbose" && echo " $1" 1>&AC_FD_MSG
4646 dnl ---------------------------------------------------------------------------
4647 dnl CF_WEAK_SYMBOLS version: 1 updated: 2008/08/16 19:18:06
4649 dnl Check for compiler-support for weak symbols.
4650 dnl This works with "recent" gcc.
4651 AC_DEFUN([CF_WEAK_SYMBOLS],[
4652 AC_CACHE_CHECK(if $CC supports weak symbols,cf_cv_weak_symbols,[
4655 #include <stdio.h>],
4657 #if defined(__GNUC__)
4658 # if defined __USE_ISOC99
4659 # define _cat_pragma(exp) _Pragma(#exp)
4660 # define _weak_pragma(exp) _cat_pragma(weak name)
4662 # define _weak_pragma(exp)
4664 # define _declare(name) __extension__ extern __typeof__(name) name
4665 # define weak_symbol(name) _weak_pragma(name) _declare(name) __attribute__((weak))
4669 ],[cf_cv_weak_symbols=yes],[cf_cv_weak_symbols=no])
4672 dnl ---------------------------------------------------------------------------
4673 dnl CF_WITH_ADA_COMPILER version: 2 updated: 2010/06/26 17:35:58
4674 dnl --------------------
4675 dnl Command-line option to specify the Ada95 compiler.
4676 AC_DEFUN([CF_WITH_ADA_COMPILER],[
4677 AC_MSG_CHECKING(for ada-compiler)
4678 AC_ARG_WITH(ada-compiler,
4679 [ --with-ada-compiler=CMD specify Ada95 compiler command (default gnatmake)],
4680 [cf_ada_compiler=$withval],
4681 [cf_ada_compiler=gnatmake])
4682 AC_SUBST(cf_ada_compiler)
4683 AC_MSG_RESULT($cf_ada_compiler)
4685 dnl ---------------------------------------------------------------------------
4686 dnl CF_WITH_ADA_INCLUDE version: 2 updated: 2010/06/26 17:35:58
4687 dnl -------------------
4688 dnl Command-line option to specify where Ada includes will install.
4689 AC_DEFUN([CF_WITH_ADA_INCLUDE],[
4690 AC_MSG_CHECKING(for ada-include)
4691 CF_WITH_PATH(ada-include,
4692 [ --with-ada-include=DIR Ada includes are in DIR],
4694 PREFIX/share/ada/adainclude,
4695 [$]prefix/share/ada/adainclude)
4696 AC_SUBST(ADA_INCLUDE)
4697 AC_MSG_RESULT($ADA_INCLUDE)
4699 dnl ---------------------------------------------------------------------------
4700 dnl CF_WITH_ADA_LIBNAME version: 1 updated: 2019/09/07 18:59:41
4701 dnl -------------------
4702 dnl CF_WITH_ADA_LIBNAME
4703 dnl -------------------
4704 dnl Command-line option to specify how to name the resulting Ada library.
4705 dnl $1 = default value
4706 AC_DEFUN([CF_WITH_ADA_LIBNAME],[
4707 AC_MSG_CHECKING(for ada-libname)
4708 AC_ARG_WITH(ada-libname,
4709 [ --with-ada-libname=XXX override default Ada library-name],
4710 ADA_LIBNAME=[$]withval,
4712 case "x$ADA_LIBNAME" in
4717 AC_SUBST(ADA_LIBNAME)
4718 AC_MSG_RESULT($ADA_LIBNAME)
4720 dnl ---------------------------------------------------------------------------
4721 dnl CF_WITH_ADA_OBJECTS version: 2 updated: 2010/06/26 17:35:58
4722 dnl -------------------
4723 dnl Command-line option to specify where Ada objects will install.
4724 AC_DEFUN([CF_WITH_ADA_OBJECTS],[
4725 AC_MSG_CHECKING(for ada-objects)
4726 CF_WITH_PATH(ada-objects,
4727 [ --with-ada-objects=DIR Ada objects are in DIR],
4729 PREFIX/lib/ada/adalib,
4730 [$]prefix/lib/ada/adalib)
4731 AC_SUBST(ADA_OBJECTS)
4732 AC_MSG_RESULT($ADA_OBJECTS)
4734 dnl ---------------------------------------------------------------------------
4735 dnl CF_WITH_ADA_SHAREDLIB version: 5 updated: 2018/07/21 19:10:35
4736 dnl ---------------------
4737 dnl Command-line option to specify if an Ada95 shared-library should be built,
4738 dnl and optionally what its soname should be.
4739 AC_DEFUN([CF_WITH_ADA_SHAREDLIB],[
4740 AC_REQUIRE([CF_GNAT_PROJECTS])
4741 AC_MSG_CHECKING(if an Ada95 shared-library should be built)
4742 AC_ARG_WITH(ada-sharedlib,
4743 [ --with-ada-sharedlib=soname build shared-library (requires GNAT projects)],
4744 [with_ada_sharedlib=$withval],
4745 [with_ada_sharedlib=no])
4746 AC_MSG_RESULT($with_ada_sharedlib)
4748 if test "x$with_ada_sharedlib" != xno
4750 if test "x$cf_gnat_projects" != xyes
4752 AC_MSG_WARN(disabling shared-library since GNAT projects are not supported)
4753 with_ada_sharedlib=no
4757 ADA_SHAREDLIB='lib$(LIB_NAME).so.1'
4758 MAKE_ADA_SHAREDLIB="#"
4760 if test "x$with_ada_sharedlib" != xno
4763 if test "x$with_ada_sharedlib" != xyes
4765 ADA_SHAREDLIB="$with_ada_sharedlib"
4769 AC_SUBST(ADA_SHAREDLIB)
4770 AC_SUBST(MAKE_ADA_SHAREDLIB)
4772 dnl ---------------------------------------------------------------------------
4773 dnl CF_WITH_CURSES_DIR version: 4 updated: 2021/01/02 19:22:58
4774 dnl ------------------
4775 dnl Wrapper for AC_ARG_WITH to specify directory under which to look for curses
4777 AC_DEFUN([CF_WITH_CURSES_DIR],[
4779 AC_MSG_CHECKING(for specific curses-directory)
4780 AC_ARG_WITH(curses-dir,
4781 [ --with-curses-dir=DIR directory in which (n)curses is installed],
4782 [cf_cv_curses_dir=$withval],
4783 [cf_cv_curses_dir=no])
4784 AC_MSG_RESULT($cf_cv_curses_dir)
4786 if test -n "$cf_cv_curses_dir" && test "$cf_cv_curses_dir" != "no"
4788 CF_PATH_SYNTAX(withval)
4789 if test -d "$cf_cv_curses_dir"
4791 CF_ADD_INCDIR($cf_cv_curses_dir/include)
4792 CF_ADD_LIBDIR($cf_cv_curses_dir/lib)
4796 dnl ---------------------------------------------------------------------------
4797 dnl CF_WITH_LIB_PREFIX version: 2 updated: 2021/01/01 16:53:59
4798 dnl ------------------
4799 dnl Allow the library-prefix to be overridden. OS/2 EMX originally had no
4800 dnl "lib" prefix, e.g., because it used the dll naming convention.
4802 dnl $1 = variable to set
4803 AC_DEFUN([CF_WITH_LIB_PREFIX],
4805 AC_MSG_CHECKING(if you want to have a library-prefix)
4806 AC_ARG_WITH(lib-prefix,
4807 [ --with-lib-prefix override library-prefix],
4808 [with_lib_prefix=$withval],
4809 [with_lib_prefix=auto])
4810 AC_MSG_RESULT($with_lib_prefix)
4812 if test "$with_lib_prefix" = auto
4815 elif test "$with_lib_prefix" = no
4819 LIB_PREFIX=$with_lib_prefix
4822 dnl ---------------------------------------------------------------------------
4823 dnl CF_WITH_PATH version: 12 updated: 2021/09/04 06:35:04
4825 dnl Wrapper for AC_ARG_WITH to ensure that user supplies a pathname, not just
4826 dnl defaulting to yes/no.
4828 dnl $1 = option name
4830 dnl $3 = environment variable to set
4831 dnl $4 = default value, shown in the help-message, must be a constant
4832 dnl $5 = default value, if it is an expression & cannot be in the help-message
4834 AC_DEFUN([CF_WITH_PATH],
4835 [AC_ARG_WITH($1,[$2 ](default: ifelse([$4],,empty,[$4])),,
4836 ifelse([$4],,[withval="${$3}"],[withval="${$3:-ifelse([$5],,[$4],[$5])}"]))dnl
4837 if ifelse([$5],,true,[test -n "$5"]) ; then
4838 CF_PATH_SYNTAX(withval)
4843 dnl ---------------------------------------------------------------------------
4844 dnl CF_WITH_PKG_CONFIG_LIBDIR version: 21 updated: 2023/01/22 13:37:42
4845 dnl -------------------------
4846 dnl Allow the choice of the pkg-config library directory to be overridden.
4848 dnl pkg-config uses a search-list built from these colon-separated lists of
4850 dnl a) $PKG_CONFIG_PATH (tested first, added if set)
4851 dnl b) $PKG_CONFIG_LIBDIR (tested second, added if set)
4852 dnl c) builtin-list (added if $PKG_CONFIG_LIBDIR is not set)
4854 dnl pkgconf (used with some systems such as FreeBSD in place of pkg-config)
4855 dnl optionally ignores $PKG_CONFIG_LIBDIR. Very old versions of pkg-config,
4856 dnl e.g., Solaris 10 also do not recognize $PKG_CONFIG_LIBDIR.
4857 AC_DEFUN([CF_WITH_PKG_CONFIG_LIBDIR],[
4859 case "$PKG_CONFIG" in
4861 AC_MSG_CHECKING(for pkg-config library directory)
4864 AC_MSG_CHECKING(for $PKG_CONFIG library directory)
4868 # if $PKG_CONFIG_LIBDIR is set, try to use that
4869 if test -n "$PKG_CONFIG_PATH"; then
4870 cf_search_path=`echo "$PKG_CONFIG_PATH" | sed -e 's/:/ /g' -e 's,^[[ ]]*,,' -e 's,[[ ]]*$,,'`
4871 elif test -n "$PKG_CONFIG_LIBDIR"; then
4872 cf_search_path=`echo "$PKG_CONFIG_LIBDIR" | sed -e 's/:/ /g' -e 's,^[[ ]]*,,' -e 's,[[ ]]*$,,'`
4877 # if the option is used, let that override. otherwise default to "libdir"
4878 AC_ARG_WITH(pkg-config-libdir,
4879 [ --with-pkg-config-libdir=XXX use given directory for installing pc-files],
4880 [cf_search_path=$withval],
4881 [test "x$PKG_CONFIG" != xnone && test -z "$cf_search_path" && cf_search_path=libdir])
4883 case "x$cf_search_path" in
4885 PKG_CONFIG_LIBDIR='${libdir}/pkgconfig'
4886 AC_MSG_RESULT($PKG_CONFIG_LIBDIR)
4895 PKG_CONFIG_LIBDIR="$cf_search_path"
4896 AC_MSG_RESULT($PKG_CONFIG_LIBDIR)
4902 # Look for the library directory using the same prefix as the executable
4903 AC_MSG_CHECKING(for search-list)
4904 if test "x$PKG_CONFIG" != xnone
4906 # works for pkg-config since version 0.24 (2009)
4907 # works for pkgconf since version 0.8.3 (2012)
4908 for cf_pkg_program in \
4909 `echo "$PKG_CONFIG" | sed -e 's,^.*/,,'` \
4913 cf_search_path=`"$PKG_CONFIG" --variable=pc_path "$cf_pkg_program" 2>/dev/null | tr : ' '`
4914 test -n "$cf_search_path" && break
4917 # works for pkg-config since import in 2005 of original 2001 HP code.
4918 test -z "$cf_search_path" && \
4920 "$PKG_CONFIG" --debug --exists no-such-package 2>&1 | $AWK "\
4921 /^Scanning directory (#[1-9][0-9]* )?'.*'$/{ \
4922 sub(\"^[[^']]*'\",\"\"); \
4923 sub(\"'.*\",\"\"); \
4924 printf \" %s\", \\[$]0; } \
4929 AC_MSG_RESULT($cf_search_path)
4932 AC_MSG_ERROR(Unexpected option value: $cf_search_path)
4936 if test -n "$cf_search_path"
4938 AC_MSG_CHECKING(for first directory)
4939 cf_pkg_config_path=none
4940 for cf_config in $cf_search_path
4942 if test -d "$cf_config"
4944 cf_pkg_config_path=$cf_config
4948 AC_MSG_RESULT($cf_pkg_config_path)
4950 if test "x$cf_pkg_config_path" != xnone ; then
4951 # limit this to the first directory found
4952 PKG_CONFIG_LIBDIR="$cf_pkg_config_path"
4955 if test -z "$PKG_CONFIG_LIBDIR" && test -n "$cf_search_path"
4957 AC_MSG_CHECKING(for workaround)
4958 if test "$prefix" = "NONE" ; then
4959 cf_prefix="$ac_default_prefix"
4963 eval cf_libdir=$libdir
4964 cf_libdir=`echo "$cf_libdir" | sed -e "s,^NONE,$cf_prefix,"`
4966 for cf_config in $cf_search_path
4969 $cf_libdir/pkgconfig)
4970 PKG_CONFIG_LIBDIR=$cf_libdir/pkgconfig
4974 test -z "$cf_backup" && cf_backup=$cf_config
4978 test -z "$PKG_CONFIG_LIBDIR" && PKG_CONFIG_LIBDIR=$cf_backup
4979 AC_MSG_RESULT($PKG_CONFIG_LIBDIR)
4983 AC_SUBST(PKG_CONFIG_LIBDIR)
4985 dnl ---------------------------------------------------------------------------
4986 dnl CF_WITH_PTHREAD version: 7 updated: 2015/04/18 08:56:57
4988 dnl Check for POSIX thread library.
4989 AC_DEFUN([CF_WITH_PTHREAD],
4991 AC_MSG_CHECKING(if you want to link with the pthread library)
4992 AC_ARG_WITH(pthread,
4993 [ --with-pthread use POSIX thread library],
4994 [with_pthread=$withval],
4996 AC_MSG_RESULT($with_pthread)
4998 if test "$with_pthread" != no ; then
4999 AC_CHECK_HEADER(pthread.h,[
5000 AC_DEFINE(HAVE_PTHREADS_H,1,[Define to 1 if we have pthreads.h header])
5002 for cf_lib_pthread in pthread c_r
5004 AC_MSG_CHECKING(if we can link with the $cf_lib_pthread library)
5005 cf_save_LIBS="$LIBS"
5006 CF_ADD_LIB($cf_lib_pthread)
5008 #include <pthread.h>
5010 int rc = pthread_create(0,0,0,0);
5011 int r2 = pthread_mutexattr_settype(0, 0);
5012 ],[with_pthread=yes],[with_pthread=no])
5013 LIBS="$cf_save_LIBS"
5014 AC_MSG_RESULT($with_pthread)
5015 test "$with_pthread" = yes && break
5018 if test "$with_pthread" = yes ; then
5019 CF_ADD_LIB($cf_lib_pthread)
5020 AC_DEFINE(HAVE_LIBPTHREADS,1,[Define to 1 if we have pthreads library])
5022 AC_MSG_ERROR(Cannot link with pthread library)
5027 dnl ---------------------------------------------------------------------------
5028 dnl CF_WITH_SYSTYPE version: 1 updated: 2013/01/26 16:26:12
5030 dnl For testing, override the derived host system-type which is used to decide
5031 dnl things such as the linker commands used to build shared libraries. This is
5032 dnl normally chosen automatically based on the type of system which you are
5033 dnl building on. We use it for testing the configure script.
5035 dnl This is different from the --host option: it is used only for testing parts
5036 dnl of the configure script which would not be reachable with --host since that
5037 dnl relies on the build environment being real, rather than mocked up.
5038 AC_DEFUN([CF_WITH_SYSTYPE],[
5039 CF_CHECK_CACHE([AC_CANONICAL_SYSTEM])
5040 AC_ARG_WITH(system-type,
5041 [ --with-system-type=XXX test: override derived host system-type],
5042 [AC_MSG_WARN(overriding system type to $withval)
5043 cf_cv_system_name=$withval
5047 dnl ---------------------------------------------------------------------------
5048 dnl CF_XOPEN_SOURCE version: 66 updated: 2023/04/03 04:19:37
5050 dnl Try to get _XOPEN_SOURCE defined properly that we can use POSIX functions,
5051 dnl or adapt to the vendor's definitions to get equivalent functionality,
5052 dnl without losing the common non-POSIX features.
5055 dnl $1 is the nominal value for _XOPEN_SOURCE
5056 dnl $2 is the nominal value for _POSIX_C_SOURCE
5058 dnl The default case prefers _XOPEN_SOURCE over _POSIX_C_SOURCE if the
5059 dnl implementation predefines it, because X/Open and most implementations agree
5060 dnl that the latter is a legacy or "aligned" value.
5062 dnl Because _XOPEN_SOURCE is preferred, if defining _POSIX_C_SOURCE turns
5063 dnl that off, then refrain from setting _POSIX_C_SOURCE explicitly.
5066 dnl https://pubs.opengroup.org/onlinepubs/007904975/functions/xsh_chap02_02.html
5067 dnl https://docs.oracle.com/cd/E19253-01/816-5175/standards-5/index.html
5068 dnl https://www.gnu.org/software/libc/manual/html_node/Feature-Test-Macros.html
5069 AC_DEFUN([CF_XOPEN_SOURCE],[
5070 AC_REQUIRE([AC_CANONICAL_HOST])
5071 AC_REQUIRE([CF_POSIX_VISIBLE])
5073 if test "$cf_cv_posix_visible" = no; then
5075 cf_XOPEN_SOURCE=ifelse([$1],,500,[$1])
5076 cf_POSIX_C_SOURCE=ifelse([$2],,199506L,[$2])
5081 cf_xopen_source="-D_ALL_SOURCE"
5084 cf_xopen_source="-D_APPLE_C_SOURCE"
5087 cf_xopen_source="-D_DARWIN_C_SOURCE"
5090 (freebsd*|dragonfly*|midnightbsd*)
5091 # 5.x headers associate
5092 # _XOPEN_SOURCE=600 with _POSIX_C_SOURCE=200112L
5093 # _XOPEN_SOURCE=500 with _POSIX_C_SOURCE=199506L
5094 cf_POSIX_C_SOURCE=200112L
5096 cf_xopen_source="-D_BSD_TYPES -D__BSD_VISIBLE -D_POSIX_C_SOURCE=$cf_POSIX_C_SOURCE -D_XOPEN_SOURCE=$cf_XOPEN_SOURCE"
5099 cf_xopen_source="-D_HPUX_SOURCE -D_XOPEN_SOURCE=500"
5102 cf_xopen_source="-D_HPUX_SOURCE"
5105 cf_xopen_source="-D_SGI_SOURCE"
5108 (linux*gnu|linux*gnuabi64|linux*gnuabin32|linux*gnueabi|linux*gnueabihf|linux*gnux32|uclinux*|gnu*|mint*|k*bsd*-gnu|cygwin|msys|mingw*)
5109 CF_GNU_SOURCE($cf_XOPEN_SOURCE)
5112 cf_xopen_source="-D_NETBSD_SOURCE" # POSIX.1-2001 features are ifdef'd with this...
5115 # setting _XOPEN_SOURCE or _POSIX_SOURCE breaks <sys/select.h> and other headers which use u_int / u_short types
5117 CF_POSIX_C_SOURCE($cf_POSIX_C_SOURCE)
5120 cf_xopen_source="-D_NETBSD_SOURCE" # setting _XOPEN_SOURCE breaks IPv6 for lynx on NetBSD 1.6, breaks xterm, is not needed for ncursesw
5123 # OpenBSD 6.x has broken locale support, both compile-time and runtime.
5124 # see https://www.mail-archive.com/bugs@openbsd.org/msg13200.html
5125 # Abusing the conformance level is a workaround.
5126 AC_MSG_WARN(this system does not provide usable locale support)
5127 cf_xopen_source="-D_BSD_SOURCE"
5131 # setting _XOPEN_SOURCE lower than 500 breaks g++ compile with wchar.h, needed for ncursesw
5132 cf_xopen_source="-D_BSD_SOURCE"
5136 # setting _XOPEN_SOURCE breaks xterm on OpenBSD 2.8, is not needed for ncursesw
5139 cf_xopen_source="-D_OSF_SOURCE"
5142 cf_xopen_source="-D_QNX_SOURCE"
5145 # setting _XOPEN_SOURCE breaks Lynx on SCO Unix / OpenServer
5148 cf_xopen_source="-D__EXTENSIONS__"
5149 cf_cv_xopen_source=broken
5151 (sysv4.2uw2.*) # Novell/SCO UnixWare 2.x (tested on 2.1.2)
5157 cf_save_xopen_cppflags="$CPPFLAGS"
5158 CF_POSIX_C_SOURCE($cf_POSIX_C_SOURCE)
5159 # Some of these niche implementations use copy/paste, double-check...
5160 if test "$cf_cv_xopen_source" = no ; then
5161 CF_VERBOSE(checking if _POSIX_C_SOURCE interferes with _XOPEN_SOURCE)
5162 AC_TRY_COMPILE(CF__XOPEN_SOURCE_HEAD,CF__XOPEN_SOURCE_BODY,,[
5163 AC_MSG_WARN(_POSIX_C_SOURCE definition is not usable)
5164 CPPFLAGS="$cf_save_xopen_cppflags"])
5169 if test -n "$cf_xopen_source" ; then
5170 CF_APPEND_CFLAGS($cf_xopen_source,true)
5173 dnl In anything but the default case, we may have system-specific setting
5174 dnl which is still not guaranteed to provide all of the entrypoints that
5175 dnl _XOPEN_SOURCE would yield.
5176 if test -n "$cf_XOPEN_SOURCE" && test -z "$cf_cv_xopen_source" ; then
5177 AC_MSG_CHECKING(if _XOPEN_SOURCE really is set)
5178 AC_TRY_COMPILE([#include <stdlib.h>],[
5179 #ifndef _XOPEN_SOURCE
5180 #error _XOPEN_SOURCE is not defined
5182 [cf_XOPEN_SOURCE_set=yes],
5183 [cf_XOPEN_SOURCE_set=no])
5184 AC_MSG_RESULT($cf_XOPEN_SOURCE_set)
5185 if test "$cf_XOPEN_SOURCE_set" = yes
5187 AC_TRY_COMPILE([#include <stdlib.h>],[
5188 #if (_XOPEN_SOURCE - 0) < $cf_XOPEN_SOURCE
5189 #error (_XOPEN_SOURCE - 0) < $cf_XOPEN_SOURCE
5191 [cf_XOPEN_SOURCE_set_ok=yes],
5192 [cf_XOPEN_SOURCE_set_ok=no])
5193 if test "$cf_XOPEN_SOURCE_set_ok" = no
5195 AC_MSG_WARN(_XOPEN_SOURCE is lower than requested)
5201 fi # cf_cv_posix_visible
5203 dnl ---------------------------------------------------------------------------
5204 dnl CF__SED_TRIMBLANKS version: 1 updated: 2021/01/02 09:31:20
5205 dnl ------------------
5206 dnl Trim something using sed, then trim extra whitespace
5207 dnl $1 = extra parameters, e.g., in CF_STRIP_G_OPT
5208 define([CF__SED_TRIMBLANKS],[sed ifelse($1,,,[$1] )-e 's%[[ ]]% %g' -e 's% [[ ]]*% %g' -e 's%^ %%' -e 's% [$]%%'])dnl
5209 dnl ---------------------------------------------------------------------------
5210 dnl CF__XOPEN_SOURCE_BODY version: 2 updated: 2023/02/18 17:41:25
5211 dnl ---------------------
5212 dnl body of test when test-compiling for _XOPEN_SOURCE check
5213 define([CF__XOPEN_SOURCE_BODY],
5215 #ifndef _XOPEN_SOURCE
5216 #error _XOPEN_SOURCE is not defined
5219 dnl ---------------------------------------------------------------------------
5220 dnl CF__XOPEN_SOURCE_HEAD version: 2 updated: 2023/02/18 17:41:25
5221 dnl ---------------------
5222 dnl headers to include when test-compiling for _XOPEN_SOURCE check
5223 define([CF__XOPEN_SOURCE_HEAD],
5225 $ac_includes_default