1 dnl***************************************************************************
2 dnl Copyright 2018-2020,2021 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 1.174 2021/04/03 20:46:10 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: 16 updated: 2020/12/31 20:19:42
194 dnl Add an include-directory to $CPPFLAGS. Don't add /usr/include, since it's
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/$2"
342 dnl ---------------------------------------------------------------------------
343 dnl CF_APPEND_TEXT version: 1 updated: 2017/02/25 18:58:55
345 dnl use this macro for appending text without introducing an extra blank at
347 define([CF_APPEND_TEXT],
349 test -n "[$]$1" && $1="[$]$1 "
352 dnl ---------------------------------------------------------------------------
353 dnl CF_ARG_DISABLE version: 3 updated: 1999/03/30 17:24:31
355 dnl Allow user to disable a normally-on option.
356 AC_DEFUN([CF_ARG_DISABLE],
357 [CF_ARG_OPTION($1,[$2],[$3],[$4],yes)])dnl
358 dnl ---------------------------------------------------------------------------
359 dnl CF_ARG_ENABLE version: 3 updated: 1999/03/30 17:24:31
361 dnl Allow user to enable a normally-off option.
362 AC_DEFUN([CF_ARG_ENABLE],
363 [CF_ARG_OPTION($1,[$2],[$3],[$4],no)])dnl
364 dnl ---------------------------------------------------------------------------
365 dnl CF_ARG_OPTION version: 5 updated: 2015/05/10 19:52:14
367 dnl Restricted form of AC_ARG_ENABLE that ensures user doesn't give bogus
373 dnl $3 = action to perform if option is not default
374 dnl $4 = action if perform if option is default
375 dnl $5 = default option value (either 'yes' or 'no')
376 AC_DEFUN([CF_ARG_OPTION],
377 [AC_ARG_ENABLE([$1],[$2],[test "$enableval" != ifelse([$5],no,yes,no) && enableval=ifelse([$5],no,no,yes)
378 if test "$enableval" != "$5" ; then
380 ,[ $3]) ifelse([$4],,,[
383 fi],[enableval=$5 ifelse([$4],,,[
387 dnl ---------------------------------------------------------------------------
388 dnl CF_AR_FLAGS version: 9 updated: 2021/01/01 13:31:04
390 dnl Check for suitable "ar" (archiver) options for updating an archive.
392 dnl In particular, handle some obsolete cases where the "-" might be omitted,
393 dnl as well as a workaround for breakage of make's archive rules by the GNU
394 dnl binutils "ar" program.
395 AC_DEFUN([CF_AR_FLAGS],[
396 AC_REQUIRE([CF_PROG_AR])
398 AC_CACHE_CHECK(for options to update archives, cf_cv_ar_flags,[
399 case "$cf_cv_system_name" in
402 cat >mk_static_lib.sh <<-EOF
407 exec \[$]MSVC_BIN -out:"\[$]out" \[$]@
409 chmod +x mk_static_lib.sh
410 AR=`pwd`/mk_static_lib.sh
413 cf_cv_ar_flags=unknown
414 for cf_ar_flags in -curvU -curv curv -crv crv -cqv cqv -rv rv
417 # check if $ARFLAGS already contains this choice
418 if test "x$ARFLAGS" != "x" ; then
419 cf_check_ar_flags=`echo "x$ARFLAGS" | sed -e "s/$cf_ar_flags\$//" -e "s/$cf_ar_flags / /"`
420 if test "x$ARFLAGS" != "$cf_check_ar_flags" ; then
426 rm -f "conftest.$ac_cv_objext"
429 cat >"conftest.$ac_ext" <<EOF
430 #line __oline__ "configure"
431 int testdata[[3]] = { 123, 456, 789 };
433 if AC_TRY_EVAL(ac_compile) ; then
434 echo "$AR $ARFLAGS $cf_ar_flags conftest.a conftest.$ac_cv_objext" >&AC_FD_CC
435 $AR $ARFLAGS "$cf_ar_flags" conftest.a "conftest.$ac_cv_objext" 2>&AC_FD_CC 1>/dev/null
436 if test -f conftest.a ; then
437 cf_cv_ar_flags="$cf_ar_flags"
441 CF_VERBOSE(cannot compile test-program)
445 rm -f conftest.a "conftest.$ac_ext" "conftest.$ac_cv_objext"
450 if test -n "$ARFLAGS" ; then
451 if test -n "$cf_cv_ar_flags" ; then
452 ARFLAGS="$ARFLAGS $cf_cv_ar_flags"
455 ARFLAGS=$cf_cv_ar_flags
460 dnl ---------------------------------------------------------------------------
461 dnl CF_BUILD_CC version: 9 updated: 2021/01/02 09:31:20
463 dnl If we're cross-compiling, allow the user to override the tools and their
464 dnl options. The configure script is oriented toward identifying the host
465 dnl compiler, etc., but we need a build compiler to generate parts of the
468 dnl $1 = default for $CPPFLAGS
469 dnl $2 = default for $LIBS
470 AC_DEFUN([CF_BUILD_CC],[
471 CF_ACVERSION_CHECK(2.52,,
472 [AC_REQUIRE([CF_PROG_EXT])])
473 if test "$cross_compiling" = yes ; then
475 # defaults that we might want to override
476 : ${BUILD_CFLAGS:=''}
477 : ${BUILD_CPPFLAGS:='ifelse([$1],,,[$1])'}
478 : ${BUILD_LDFLAGS:=''}
479 : ${BUILD_LIBS:='ifelse([$2],,,[$2])'}
480 : ${BUILD_EXEEXT:='$x'}
481 : ${BUILD_OBJEXT:='o'}
483 AC_ARG_WITH(build-cc,
484 [ --with-build-cc=XXX the build C compiler ($BUILD_CC)],
485 [BUILD_CC="$withval"],
486 [AC_CHECK_PROGS(BUILD_CC, [gcc clang c99 c89 cc cl],none)])
487 AC_MSG_CHECKING(for native build C compiler)
488 AC_MSG_RESULT($BUILD_CC)
490 AC_MSG_CHECKING(for native build C preprocessor)
491 AC_ARG_WITH(build-cpp,
492 [ --with-build-cpp=XXX the build C preprocessor ($BUILD_CPP)],
493 [BUILD_CPP="$withval"],
494 [BUILD_CPP='${BUILD_CC} -E'])
495 AC_MSG_RESULT($BUILD_CPP)
497 AC_MSG_CHECKING(for native build C flags)
498 AC_ARG_WITH(build-cflags,
499 [ --with-build-cflags=XXX the build C compiler-flags ($BUILD_CFLAGS)],
500 [BUILD_CFLAGS="$withval"])
501 AC_MSG_RESULT($BUILD_CFLAGS)
503 AC_MSG_CHECKING(for native build C preprocessor-flags)
504 AC_ARG_WITH(build-cppflags,
505 [ --with-build-cppflags=XXX the build C preprocessor-flags ($BUILD_CPPFLAGS)],
506 [BUILD_CPPFLAGS="$withval"])
507 AC_MSG_RESULT($BUILD_CPPFLAGS)
509 AC_MSG_CHECKING(for native build linker-flags)
510 AC_ARG_WITH(build-ldflags,
511 [ --with-build-ldflags=XXX the build linker-flags ($BUILD_LDFLAGS)],
512 [BUILD_LDFLAGS="$withval"])
513 AC_MSG_RESULT($BUILD_LDFLAGS)
515 AC_MSG_CHECKING(for native build linker-libraries)
516 AC_ARG_WITH(build-libs,
517 [ --with-build-libs=XXX the build libraries (${BUILD_LIBS})],
518 [BUILD_LIBS="$withval"])
519 AC_MSG_RESULT($BUILD_LIBS)
521 # this assumes we're on Unix.
525 : ${BUILD_CC:='${CC}'}
527 if { test "$BUILD_CC" = "$CC" || test "$BUILD_CC" = '${CC}'; } ; then
528 AC_MSG_ERROR([Cross-build requires two compilers.
529 Use --with-build-cc to specify the native compiler.])
533 : ${BUILD_CC:='${CC}'}
534 : ${BUILD_CPP:='${CPP}'}
535 : ${BUILD_CFLAGS:='${CFLAGS}'}
536 : ${BUILD_CPPFLAGS:='${CPPFLAGS}'}
537 : ${BUILD_LDFLAGS:='${LDFLAGS}'}
538 : ${BUILD_LIBS:='${LIBS}'}
539 : ${BUILD_EXEEXT:='$x'}
540 : ${BUILD_OBJEXT:='o'}
545 AC_SUBST(BUILD_CFLAGS)
546 AC_SUBST(BUILD_CPPFLAGS)
547 AC_SUBST(BUILD_LDFLAGS)
549 AC_SUBST(BUILD_EXEEXT)
550 AC_SUBST(BUILD_OBJEXT)
552 dnl ---------------------------------------------------------------------------
553 dnl CF_C11_NORETURN version: 3 updated: 2021/03/28 11:36:23
555 AC_DEFUN([CF_C11_NORETURN],
557 AC_MSG_CHECKING(if you want to use C11 _Noreturn feature)
558 CF_ARG_ENABLE(stdnoreturn,
559 [ --enable-stdnoreturn enable C11 _Noreturn feature for diagnostics],
560 [enable_stdnoreturn=yes],
561 [enable_stdnoreturn=no])
562 AC_MSG_RESULT($enable_stdnoreturn)
564 if test $enable_stdnoreturn = yes; then
565 AC_CACHE_CHECK([for C11 _Noreturn feature], cf_cv_c11_noreturn,
569 #include <stdnoreturn.h>
570 static _Noreturn void giveup(void) { exit(0); }
572 [if (feof(stdin)) giveup()],
573 cf_cv_c11_noreturn=yes,
574 cf_cv_c11_noreturn=no)
577 cf_cv_c11_noreturn=no,
580 if test "$cf_cv_c11_noreturn" = yes; then
581 AC_DEFINE(HAVE_STDNORETURN_H, 1,[Define if <stdnoreturn.h> header is available and working])
582 AC_DEFINE_UNQUOTED(STDC_NORETURN,_Noreturn,[Define if C11 _Noreturn keyword is supported])
588 AC_SUBST(HAVE_STDNORETURN_H)
589 AC_SUBST(STDC_NORETURN)
591 dnl ---------------------------------------------------------------------------
592 dnl CF_CC_ENV_FLAGS version: 10 updated: 2020/12/31 18:40:20
594 dnl Check for user's environment-breakage by stuffing CFLAGS/CPPFLAGS content
595 dnl into CC. This will not help with broken scripts that wrap the compiler
596 dnl with options, but eliminates a more common category of user confusion.
598 dnl In particular, it addresses the problem of being able to run the C
599 dnl preprocessor in a consistent manner.
601 dnl Caveat: this also disallows blanks in the pathname for the compiler, but
602 dnl the nuisance of having inconsistent settings for compiler and preprocessor
603 dnl outweighs that limitation.
604 AC_DEFUN([CF_CC_ENV_FLAGS],
606 # This should have been defined by AC_PROG_CC
609 AC_MSG_CHECKING(\$CFLAGS variable)
612 AC_MSG_RESULT(broken)
613 AC_MSG_WARN(your environment uses the CFLAGS variable to hold CPPFLAGS options)
616 for cf_arg in $cf_flags
618 CF_ADD_CFLAGS($cf_arg)
626 AC_MSG_CHECKING(\$CC variable)
629 AC_MSG_RESULT(broken)
630 AC_MSG_WARN(your environment uses the CC variable to hold CFLAGS/CPPFLAGS options)
632 cf_prog=`echo "$CC" | sed -e 's/ / /g' -e 's/[[ ]]* / /g' -e 's/[[ ]]*[[ ]]-[[^ ]].*//'`
633 cf_flags=`echo "$CC" | ${AWK:-awk} -v prog="$cf_prog" '{ printf("%s", [substr]([$]0,1+length(prog))); }'`
635 for cf_arg in $cf_flags
639 CF_ADD_CFLAGS($cf_arg)
646 CF_VERBOSE(resulting CC: '$CC')
647 CF_VERBOSE(resulting CFLAGS: '$CFLAGS')
648 CF_VERBOSE(resulting CPPFLAGS: '$CPPFLAGS')
655 dnl ---------------------------------------------------------------------------
656 dnl CF_CFG_DEFAULTS version: 16 updated: 2021/01/04 19:33:05
658 dnl Determine the default configuration into which we'll install ncurses. This
659 dnl can be overridden by the user's command-line options. There's two items to
661 dnl 1. the prefix (e.g., /usr)
662 dnl 2. the header files (e.g., /usr/include/ncurses)
663 dnl We'll look for a previous installation of ncurses and use the same defaults.
665 dnl We don't use AC_PREFIX_DEFAULT, because it gets evaluated too soon, and
666 dnl we don't use AC_PREFIX_PROGRAM, because we cannot distinguish ncurses's
667 dnl programs from a vendor's.
668 AC_DEFUN([CF_CFG_DEFAULTS],
669 [AC_REQUIRE([AC_PROG_FGREP])dnl
671 AC_MSG_CHECKING(for prefix)
672 if test "x$prefix" = "xNONE" ; then
673 case "$cf_cv_system_name" in
674 # non-vendor systems don't have a conflict
675 (openbsd*|freebsd*|mirbsd*|linux*|cygwin*|msys*|k*bsd*-gnu|mingw*)
678 (*) prefix=$ac_default_prefix
682 AC_MSG_RESULT($prefix)
684 if test "x$prefix" = "xNONE" ; then
685 AC_MSG_CHECKING(for default include-directory)
686 test -n "$verbose" && echo 1>&AC_FD_MSG
689 "$includedir/ncurses" \
691 "$prefix/include/ncurses" \
693 /usr/local/include/ncurses \
697 cf_dir=`eval echo "$cf_symbol"`
698 if test -f "$cf_dir/curses.h" ; then
699 if ( ${FGREP-fgrep} NCURSES_VERSION "$cf_dir/curses.h" >/dev/null 2>&1 ) ; then
700 includedir="$cf_symbol"
701 test -n "$verbose" && echo $ECHO_N " found " 1>&AC_FD_MSG
705 test -n "$verbose" && echo " tested $cf_dir" 1>&AC_FD_MSG
707 AC_MSG_RESULT($includedir)
710 dnl ---------------------------------------------------------------------------
711 dnl CF_CHECK_CACHE version: 13 updated: 2020/12/31 10:54:15
713 dnl Check if we're accidentally using a cache from a different machine.
714 dnl Derive the system name, as a check for reusing the autoconf cache.
716 dnl If we've packaged config.guess and config.sub, run that (since it does a
717 dnl better job than uname). Normally we'll use AC_CANONICAL_HOST, but allow
718 dnl an extra parameter that we may override, e.g., for AC_CANONICAL_SYSTEM
719 dnl which is useful in cross-compiles.
721 dnl Note: we would use $ac_config_sub, but that is one of the places where
722 dnl autoconf 2.5x broke compatibility with autoconf 2.13
723 AC_DEFUN([CF_CHECK_CACHE],
725 if test -f "$srcdir/config.guess" || test -f "$ac_aux_dir/config.guess" ; then
726 ifelse([$1],,[AC_CANONICAL_HOST],[$1])
727 system_name="$host_os"
729 system_name="`(uname -s -r) 2>/dev/null`"
730 if test -z "$system_name" ; then
731 system_name="`(hostname) 2>/dev/null`"
734 test -n "$system_name" && AC_DEFINE_UNQUOTED(SYSTEM_NAME,"$system_name",[Define to the system name.])
735 AC_CACHE_VAL(cf_cv_system_name,[cf_cv_system_name="$system_name"])
737 test -z "$system_name" && system_name="$cf_cv_system_name"
738 test -n "$cf_cv_system_name" && AC_MSG_RESULT(Configuring for $cf_cv_system_name)
740 if test ".$system_name" != ".$cf_cv_system_name" ; then
741 AC_MSG_RESULT(Cached system name ($system_name) does not agree with actual ($cf_cv_system_name))
742 AC_MSG_ERROR("Please remove config.cache and try again.")
745 dnl ---------------------------------------------------------------------------
746 dnl CF_CHECK_GNAT_VERSION version: 4 updated: 2021/01/01 13:31:04
747 dnl ---------------------
748 AC_DEFUN([CF_CHECK_GNAT_VERSION],
750 AC_REQUIRE([CF_GNAT_VERSION])
751 case "$cf_cv_gnat_version" in
752 (3.1[[1-9]]*|3.[[2-9]]*|[[4-9]].*|[[1-9]][[0-9]].[[0-9]]*|20[[0-9]][[0-9]])
753 cf_cv_prog_gnat_correct=yes
756 AC_MSG_WARN(Unsupported GNAT version $cf_cv_gnat_version. We require 3.11 or better. Disabling Ada95 binding.)
757 cf_cv_prog_gnat_correct=no
761 dnl ---------------------------------------------------------------------------
762 dnl CF_CLANG_COMPILER version: 8 updated: 2021/01/01 13:31:04
763 dnl -----------------
764 dnl Check if the given compiler is really clang. clang's C driver defines
765 dnl __GNUC__ (fooling the configure script into setting $GCC to yes) but does
766 dnl not ignore some gcc options.
768 dnl This macro should be run "soon" after AC_PROG_CC or AC_PROG_CPLUSPLUS, to
769 dnl ensure that it is not mistaken for gcc/g++. It is normally invoked from
770 dnl the wrappers for gcc and g++ warnings.
772 dnl $1 = GCC (default) or GXX
773 dnl $2 = CLANG_COMPILER (default)
774 dnl $3 = CFLAGS (default) or CXXFLAGS
775 AC_DEFUN([CF_CLANG_COMPILER],[
776 ifelse([$2],,CLANG_COMPILER,[$2])=no
778 if test "$ifelse([$1],,[$1],GCC)" = yes ; then
779 AC_MSG_CHECKING(if this is really Clang ifelse([$1],GXX,C++,C) compiler)
780 cf_save_CFLAGS="$ifelse([$3],,CFLAGS,[$3])"
786 ],[ifelse([$2],,CLANG_COMPILER,[$2])=yes
788 ifelse([$3],,CFLAGS,[$3])="$cf_save_CFLAGS"
789 AC_MSG_RESULT($ifelse([$2],,CLANG_COMPILER,[$2]))
794 if test "x$ifelse([$2],,CLANG_COMPILER,[$2])" = "xyes" ; then
796 (c[[1-9]][[0-9]]|*/c[[1-9]][[0-9]])
797 AC_MSG_WARN(replacing broken compiler alias $CC)
798 CFLAGS="$CFLAGS -std=`echo "$CC" | sed -e 's%.*/%%'`"
803 AC_MSG_CHECKING(version of $CC)
804 CLANG_VERSION="`$CC --version 2>/dev/null | sed -e '2,$d' -e 's/^.*(CLANG[[^)]]*) //' -e 's/^.*(Debian[[^)]]*) //' -e 's/^[[^0-9.]]*//' -e 's/[[^0-9.]].*//'`"
805 test -z "$CLANG_VERSION" && CLANG_VERSION=unknown
806 AC_MSG_RESULT($CLANG_VERSION)
808 for cf_clang_opt in \
810 -Wno-error=implicit-function-declaration
812 AC_MSG_CHECKING(if option $cf_clang_opt works)
813 cf_save_CFLAGS="$CFLAGS"
814 CFLAGS="$CFLAGS $cf_clang_opt"
816 #include <stdio.h>],[
817 printf("hello!\\n");],[
818 cf_clang_optok=yes],[
820 AC_MSG_RESULT($cf_clang_optok)
821 CFLAGS="$cf_save_CFLAGS"
822 if test "$cf_clang_optok" = yes; then
823 CF_VERBOSE(adding option $cf_clang_opt)
824 CF_APPEND_TEXT(CFLAGS,$cf_clang_opt)
829 dnl ---------------------------------------------------------------------------
830 dnl CF_CONST_X_STRING version: 6 updated: 2021/01/01 13:31:04
831 dnl -----------------
832 dnl The X11R4-X11R6 Xt specification uses an ambiguous String type for most
833 dnl character-strings.
835 dnl It is ambiguous because the specification accommodated the pre-ANSI
836 dnl compilers bundled by more than one vendor in lieu of providing a standard C
837 dnl compiler other than by costly add-ons. Because of this, the specification
838 dnl did not take into account the use of const for telling the compiler that
839 dnl string literals would be in readonly memory.
841 dnl As a workaround, one could (starting with X11R5) define XTSTRINGDEFINES, to
842 dnl let the compiler decide how to represent Xt's strings which were #define'd.
843 dnl That does not solve the problem of using the block of Xt's strings which
844 dnl are compiled into the library (and is less efficient than one might want).
846 dnl Xt specification 7 introduces the _CONST_X_STRING symbol which is used both
847 dnl when compiling the library and compiling using the library, to tell the
848 dnl compiler that String is const.
849 AC_DEFUN([CF_CONST_X_STRING],
851 AC_REQUIRE([AC_PATH_XTRA])
853 CF_SAVE_XTRA_FLAGS([CF_CONST_X_STRING])
858 #include <X11/Intrinsic.h>
860 [String foo = malloc(1); (void)foo],[
862 AC_CACHE_CHECK(for X11/Xt const-feature,cf_cv_const_x_string,[
865 #define _CONST_X_STRING /* X11R7.8 (perhaps) */
866 #undef XTSTRINGDEFINES /* X11R5 and later */
868 #include <X11/Intrinsic.h>
869 ],[String foo = malloc(1); *foo = 0],[
870 cf_cv_const_x_string=no
872 cf_cv_const_x_string=yes
876 CF_RESTORE_XTRA_FLAGS([CF_CONST_X_STRING])
878 case "$cf_cv_const_x_string" in
880 CF_APPEND_TEXT(CPPFLAGS,-DXTSTRINGDEFINES)
883 CF_APPEND_TEXT(CPPFLAGS,-D_CONST_X_STRING)
889 dnl ---------------------------------------------------------------------------
890 dnl CF_CONST_X_STRING version: 6 updated: 2021/01/01 13:31:04
891 dnl -----------------
892 dnl The X11R4-X11R6 Xt specification uses an ambiguous String type for most
893 dnl character-strings.
895 dnl It is ambiguous because the specification accommodated the pre-ANSI
896 dnl compilers bundled by more than one vendor in lieu of providing a standard C
897 dnl compiler other than by costly add-ons. Because of this, the specification
898 dnl did not take into account the use of const for telling the compiler that
899 dnl string literals would be in readonly memory.
901 dnl As a workaround, one could (starting with X11R5) define XTSTRINGDEFINES, to
902 dnl let the compiler decide how to represent Xt's strings which were #define'd.
903 dnl That does not solve the problem of using the block of Xt's strings which
904 dnl are compiled into the library (and is less efficient than one might want).
906 dnl Xt specification 7 introduces the _CONST_X_STRING symbol which is used both
907 dnl when compiling the library and compiling using the library, to tell the
908 dnl compiler that String is const.
909 AC_DEFUN([CF_CONST_X_STRING],
911 AC_REQUIRE([AC_PATH_XTRA])
913 CF_SAVE_XTRA_FLAGS([CF_CONST_X_STRING])
918 #include <X11/Intrinsic.h>
920 [String foo = malloc(1); (void)foo],[
922 AC_CACHE_CHECK(for X11/Xt const-feature,cf_cv_const_x_string,[
925 #define _CONST_X_STRING /* X11R7.8 (perhaps) */
926 #undef XTSTRINGDEFINES /* X11R5 and later */
928 #include <X11/Intrinsic.h>
929 ],[String foo = malloc(1); *foo = 0],[
930 cf_cv_const_x_string=no
932 cf_cv_const_x_string=yes
936 CF_RESTORE_XTRA_FLAGS([CF_CONST_X_STRING])
938 case "$cf_cv_const_x_string" in
940 CF_APPEND_TEXT(CPPFLAGS,-DXTSTRINGDEFINES)
943 CF_APPEND_TEXT(CPPFLAGS,-D_CONST_X_STRING)
949 dnl ---------------------------------------------------------------------------
950 dnl CF_CURSES_HEADER version: 5 updated: 2015/04/23 20:35:30
952 dnl Find a "curses" header file, e.g,. "curses.h", or one of the more common
953 dnl variations of ncurses' installs.
955 dnl $1 = ncurses when looking for ncurses, or is empty
956 AC_DEFUN([CF_CURSES_HEADER],[
957 AC_CACHE_CHECK(if we have identified curses headers,cf_cv_ncurses_header,[
958 cf_cv_ncurses_header=none
960 ncurses.h ifelse($1,,,[$1/ncurses.h]) \
961 curses.h ifelse($1,,,[$1/curses.h]) ifelse($1,,[ncurses/ncurses.h ncurses/curses.h])
963 AC_TRY_COMPILE([#include <${cf_header}>],
964 [initscr(); tgoto("?", 0,0)],
965 [cf_cv_ncurses_header=$cf_header; break],[])
969 if test "$cf_cv_ncurses_header" = none ; then
970 AC_MSG_ERROR(No curses header-files found)
973 # cheat, to get the right #define's for HAVE_NCURSES_H, etc.
974 AC_CHECK_HEADERS($cf_cv_ncurses_header)
976 dnl ---------------------------------------------------------------------------
977 dnl CF_DIRNAME version: 5 updated: 2020/12/31 20:19:42
979 dnl "dirname" is not portable, so we fake it with a shell script.
980 AC_DEFUN([CF_DIRNAME],[$1=`echo "$2" | sed -e 's%/[[^/]]*$%%'`])dnl
981 dnl ---------------------------------------------------------------------------
982 dnl CF_DISABLE_ECHO version: 13 updated: 2015/04/18 08:56:57
984 dnl You can always use "make -n" to see the actual options, but it's hard to
985 dnl pick out/analyze warning messages when the compile-line is long.
988 dnl ECHO_LT - symbol to control if libtool is verbose
989 dnl ECHO_LD - symbol to prefix "cc -o" lines
990 dnl RULE_CC - symbol to put before implicit "cc -c" lines (e.g., .c.o)
991 dnl SHOW_CC - symbol to put before explicit "cc -c" lines
992 dnl ECHO_CC - symbol to put before any "cc" line
994 AC_DEFUN([CF_DISABLE_ECHO],[
995 AC_MSG_CHECKING(if you want to see long compiling messages)
997 [ --disable-echo do not display "compiling" commands],
1000 ECHO_LD='@echo linking [$]@;'
1001 RULE_CC='@echo compiling [$]<'
1002 SHOW_CC='@echo compiling [$]@'
1011 AC_MSG_RESULT($enableval)
1018 dnl ---------------------------------------------------------------------------
1019 dnl CF_DISABLE_GNAT_PROJECTS version: 1 updated: 2014/06/01 11:34:00
1020 dnl ------------------------
1021 AC_DEFUN([CF_DISABLE_GNAT_PROJECTS],[
1022 AC_MSG_CHECKING(if we want to use GNAT projects)
1023 CF_ARG_DISABLE(gnat-projects,
1024 [ --disable-gnat-projects test: disable GNAT projects even if usable],
1025 [enable_gnat_projects=no],
1026 [enable_gnat_projects=yes])
1027 AC_MSG_RESULT($enable_gnat_projects)
1029 dnl ---------------------------------------------------------------------------
1030 dnl CF_ENABLE_BROKEN_LINKER version: 2 updated: 2021/01/02 17:09:14
1031 dnl -----------------------
1032 dnl Some linkers cannot reference a data-only object. Cygwin used to be one.
1033 dnl This usually follows CF_LINK_DATAONLY, but is not required in case we need
1034 dnl an unconditional feature.
1035 AC_DEFUN([CF_ENABLE_BROKEN_LINKER],[
1037 AC_MSG_CHECKING(if you want broken-linker support code)
1038 AC_ARG_ENABLE(broken_linker,
1039 [ --enable-broken_linker compile with broken-linker support code],
1040 [with_broken_linker=$enableval],
1041 [with_broken_linker=no])
1042 AC_MSG_RESULT($with_broken_linker)
1044 : "${BROKEN_LINKER:=0}"
1045 if test "x$with_broken_linker" = xyes ; then
1046 AC_DEFINE(BROKEN_LINKER,1,[Define to 1 to work around linkers which cannot link data-only modules])
1049 AC_SUBST(BROKEN_LINKER)
1051 dnl ---------------------------------------------------------------------------
1052 dnl CF_ENABLE_WARNINGS version: 9 updated: 2021/01/05 19:40:50
1053 dnl ------------------
1054 dnl Configure-option to enable gcc warnings
1056 dnl $1 = extra options to add, if supported
1057 dnl $2 = option for checking attributes. By default, this is done when
1058 dnl warnings are enabled. For other values:
1059 dnl yes: always do this, e.g., to use in generated library-headers
1060 dnl no: never do this
1061 AC_DEFUN([CF_ENABLE_WARNINGS],[
1062 if test "$GCC" = yes || test "$GXX" = yes
1064 CF_FIX_WARNINGS(CFLAGS)
1065 CF_FIX_WARNINGS(CPPFLAGS)
1066 CF_FIX_WARNINGS(LDFLAGS)
1067 AC_MSG_CHECKING(if you want to turn on gcc warnings)
1068 CF_ARG_ENABLE(warnings,
1069 [ --enable-warnings test: turn on gcc compiler warnings],
1070 [enable_warnings=yes],
1071 [enable_warnings=no])
1072 AC_MSG_RESULT($enable_warnings)
1073 if test "$enable_warnings" = "yes"
1075 ifelse($2,,[CF_GCC_ATTRIBUTES])
1078 ifelse($2,yes,[CF_GCC_ATTRIBUTES])
1081 dnl ---------------------------------------------------------------------------
1082 dnl CF_FIND_LIBRARY version: 11 updated: 2021/01/02 09:31:20
1084 dnl Look for a non-standard library, given parameters for AC_TRY_LINK. We
1085 dnl prefer a standard location, and use -L options only if we do not find the
1086 dnl library in the standard library location(s).
1087 dnl $1 = library name
1088 dnl $2 = library class, usually the same as library name
1090 dnl $4 = code fragment to compile/link
1091 dnl $5 = corresponding function-name
1092 dnl $6 = flag, nonnull if failure should not cause an error-exit
1094 dnl Sets the variable "$cf_libdir" as a side-effect, so we can see if we had
1095 dnl to use a -L option.
1096 AC_DEFUN([CF_FIND_LIBRARY],
1098 eval 'cf_cv_have_lib_'"$1"'=no'
1101 eval 'cf_cv_have_lib_'"$1"'=yes',[
1102 cf_save_LIBS="$LIBS"
1103 AC_MSG_CHECKING(for $5 in -l$1)
1105 AC_TRY_LINK([$3],[$4],
1107 eval 'cf_cv_have_lib_'"$1"'=yes'
1110 CF_LIBRARY_PATH(cf_search,$2)
1111 for cf_libdir in $cf_search
1113 AC_MSG_CHECKING(for -l$1 in $cf_libdir)
1114 LIBS="-L$cf_libdir -l$1 $cf_save_LIBS"
1115 AC_TRY_LINK([$3],[$4],
1117 eval 'cf_cv_have_lib_'"$1"'=yes'
1120 LIBS="$cf_save_LIBS"])
1124 eval 'cf_found_library="[$]cf_cv_have_lib_'"$1"\"
1126 if test "$cf_found_library" = no ; then
1127 AC_MSG_ERROR(Cannot link $1 library)
1131 dnl ---------------------------------------------------------------------------
1132 dnl CF_FIND_LINKAGE version: 22 updated: 2020/12/31 20:19:42
1134 dnl Find a library (specifically the linkage used in the code fragment),
1135 dnl searching for it if it is not already in the library path.
1136 dnl See also CF_ADD_SEARCHPATH.
1138 dnl Parameters (4-on are optional):
1139 dnl $1 = headers for library entrypoint
1140 dnl $2 = code fragment for library entrypoint
1141 dnl $3 = the library name without the "-l" option or ".so" suffix.
1142 dnl $4 = action to perform if successful (default: update CPPFLAGS, etc)
1143 dnl $5 = action to perform if not successful
1144 dnl $6 = module name, if not the same as the library name
1145 dnl $7 = extra libraries
1147 dnl Sets these variables:
1148 dnl $cf_cv_find_linkage_$3 - yes/no according to whether linkage is found
1149 dnl $cf_cv_header_path_$3 - include-directory if needed
1150 dnl $cf_cv_library_path_$3 - library-directory if needed
1151 dnl $cf_cv_library_file_$3 - library-file if needed, e.g., -l$3
1152 AC_DEFUN([CF_FIND_LINKAGE],[
1154 # If the linkage is not already in the $CPPFLAGS/$LDFLAGS configuration, these
1155 # will be set on completion of the AC_TRY_LINK below.
1156 cf_cv_header_path_$3=
1157 cf_cv_library_path_$3=
1159 CF_MSG_LOG([Starting [FIND_LINKAGE]($3,$6)])
1161 cf_save_LIBS="$LIBS"
1163 AC_TRY_LINK([$1],[$2],[
1164 cf_cv_find_linkage_$3=yes
1165 cf_cv_header_path_$3=/usr/include
1166 cf_cv_library_path_$3=/usr/lib
1169 LIBS="-l$3 $7 $cf_save_LIBS"
1171 AC_TRY_LINK([$1],[$2],[
1172 cf_cv_find_linkage_$3=yes
1173 cf_cv_header_path_$3=/usr/include
1174 cf_cv_library_path_$3=/usr/lib
1175 cf_cv_library_file_$3="-l$3"
1177 cf_cv_find_linkage_$3=no
1178 LIBS="$cf_save_LIBS"
1180 CF_VERBOSE(find linkage for $3 library)
1181 CF_MSG_LOG([Searching for headers in [FIND_LINKAGE]($3,$6)])
1183 cf_save_CPPFLAGS="$CPPFLAGS"
1184 cf_test_CPPFLAGS="$CPPFLAGS"
1186 CF_HEADER_PATH(cf_search,ifelse([$6],,[$3],[$6]))
1187 for cf_cv_header_path_$3 in $cf_search
1189 if test -d "$cf_cv_header_path_$3" ; then
1190 CF_VERBOSE(... testing $cf_cv_header_path_$3)
1191 CPPFLAGS="$cf_save_CPPFLAGS"
1192 CF_APPEND_TEXT(CPPFLAGS,-I$cf_cv_header_path_$3)
1193 AC_TRY_COMPILE([$1],[$2],[
1194 CF_VERBOSE(... found $3 headers in $cf_cv_header_path_$3)
1195 cf_cv_find_linkage_$3=maybe
1196 cf_test_CPPFLAGS="$CPPFLAGS"
1198 CPPFLAGS="$cf_save_CPPFLAGS"
1203 if test "$cf_cv_find_linkage_$3" = maybe ; then
1205 CF_MSG_LOG([Searching for $3 library in [FIND_LINKAGE]($3,$6)])
1207 cf_save_LIBS="$LIBS"
1208 cf_save_LDFLAGS="$LDFLAGS"
1211 CPPFLAGS="$cf_test_CPPFLAGS"
1212 LIBS="-l$3 $7 $cf_save_LIBS"
1213 AC_TRY_LINK([$1],[$2],[
1214 CF_VERBOSE(... found $3 library in system)
1215 cf_cv_find_linkage_$3=yes])
1216 CPPFLAGS="$cf_save_CPPFLAGS"
1217 LIBS="$cf_save_LIBS"
1220 if test "$cf_cv_find_linkage_$3" != yes ; then
1221 CF_LIBRARY_PATH(cf_search,$3)
1222 for cf_cv_library_path_$3 in $cf_search
1224 if test -d "$cf_cv_library_path_$3" ; then
1225 CF_VERBOSE(... testing $cf_cv_library_path_$3)
1226 CPPFLAGS="$cf_test_CPPFLAGS"
1227 LIBS="-l$3 $7 $cf_save_LIBS"
1228 LDFLAGS="$cf_save_LDFLAGS -L$cf_cv_library_path_$3"
1229 AC_TRY_LINK([$1],[$2],[
1230 CF_VERBOSE(... found $3 library in $cf_cv_library_path_$3)
1231 cf_cv_find_linkage_$3=yes
1232 cf_cv_library_file_$3="-l$3"
1234 CPPFLAGS="$cf_save_CPPFLAGS"
1235 LIBS="$cf_save_LIBS"
1236 LDFLAGS="$cf_save_LDFLAGS"
1240 CPPFLAGS="$cf_save_CPPFLAGS"
1241 LDFLAGS="$cf_save_LDFLAGS"
1245 cf_cv_find_linkage_$3=no
1250 LIBS="$cf_save_LIBS"
1252 if test "$cf_cv_find_linkage_$3" = yes ; then
1254 CF_ADD_INCDIR($cf_cv_header_path_$3)
1255 CF_ADD_LIBDIR($cf_cv_library_path_$3)
1259 ifelse([$5],,AC_MSG_WARN(Cannot find $3 library),[$5])
1262 dnl ---------------------------------------------------------------------------
1263 dnl CF_FIXUP_ADAFLAGS version: 2 updated: 2015/04/17 21:13:04
1264 dnl -----------------
1265 dnl make ADAFLAGS consistent with CFLAGS
1266 AC_DEFUN([CF_FIXUP_ADAFLAGS],[
1267 AC_MSG_CHECKING(optimization options for ADAFLAGS)
1275 cf_O_flag=`echo "$CFLAGS" |sed -e 's/^.*-O/-O/' -e 's/[[ ]].*//'`
1276 CF_ADD_ADAFLAGS($cf_O_flag)
1279 AC_MSG_RESULT($ADAFLAGS)
1281 dnl ---------------------------------------------------------------------------
1282 dnl CF_FIX_WARNINGS version: 3 updated: 2020/12/31 18:40:20
1284 dnl Warning flags do not belong in CFLAGS, CPPFLAGS, etc. Any of gcc's
1285 dnl "-Werror" flags can interfere with configure-checks. Those go into
1288 dnl $1 = variable name to repair
1289 define([CF_FIX_WARNINGS],[
1290 if test "$GCC" = yes || test "$GXX" = yes
1294 CF_VERBOSE(repairing $1: [$]$1)
1296 for cf_temp_scan in [$]$1
1298 case "x$cf_temp_scan" in
1300 CF_APPEND_TEXT(EXTRA_CFLAGS,$cf_temp_scan)
1303 CF_APPEND_TEXT(cf_temp_flags,$cf_temp_scan)
1308 CF_VERBOSE(... fixed [$]$1)
1309 CF_VERBOSE(... extra $EXTRA_CFLAGS)
1313 AC_SUBST(EXTRA_CFLAGS)
1315 dnl ---------------------------------------------------------------------------
1316 dnl CF_GCC_ATTRIBUTES version: 24 updated: 2021/03/20 12:00:25
1317 dnl -----------------
1318 dnl Test for availability of useful gcc __attribute__ directives to quiet
1319 dnl compiler warnings. Though useful, not all are supported -- and contrary
1320 dnl to documentation, unrecognized directives cause older compilers to barf.
1321 AC_DEFUN([CF_GCC_ATTRIBUTES],
1322 [AC_REQUIRE([AC_PROG_FGREP])dnl
1323 AC_REQUIRE([CF_C11_NORETURN])dnl
1325 if test "$GCC" = yes || test "$GXX" = yes
1327 cat > conftest.i <<EOF
1329 #define GCC_PRINTF 0
1334 #ifndef GCC_NORETURN
1335 #define GCC_NORETURN /* nothing */
1338 #define GCC_UNUSED /* nothing */
1341 if test "$GCC" = yes
1343 AC_CHECKING([for $CC __attribute__ directives])
1344 cat > "conftest.$ac_ext" <<EOF
1345 #line __oline__ "${as_me:-configure}"
1346 #include "confdefs.h"
1347 #include "conftest.h"
1348 #include "conftest.i"
1350 #define GCC_PRINTFLIKE(fmt,var) __attribute__((format(printf,fmt,var)))
1352 #define GCC_PRINTFLIKE(fmt,var) /*nothing*/
1355 #define GCC_SCANFLIKE(fmt,var) __attribute__((format(scanf,fmt,var)))
1357 #define GCC_SCANFLIKE(fmt,var) /*nothing*/
1359 extern void wow(char *,...) GCC_SCANFLIKE(1,2);
1360 extern GCC_NORETURN void oops(char *,...) GCC_PRINTFLIKE(1,2);
1361 extern GCC_NORETURN void foo(void);
1362 int main(int argc GCC_UNUSED, char *argv[[]] GCC_UNUSED) { (void)argc; (void)argv; return 0; }
1364 cf_printf_attribute=no
1365 cf_scanf_attribute=no
1366 for cf_attribute in scanf printf unused noreturn
1368 CF_UPPER(cf_ATTRIBUTE,$cf_attribute)
1369 cf_directive="__attribute__(($cf_attribute))"
1370 echo "checking for $CC $cf_directive" 1>&AC_FD_CC
1372 case "$cf_attribute" in
1374 cf_printf_attribute=yes
1375 cat >conftest.h <<EOF
1376 #define GCC_$cf_ATTRIBUTE 1
1380 cf_scanf_attribute=yes
1381 cat >conftest.h <<EOF
1382 #define GCC_$cf_ATTRIBUTE 1
1386 cat >conftest.h <<EOF
1387 #define GCC_$cf_ATTRIBUTE $cf_directive
1392 if AC_TRY_EVAL(ac_compile); then
1393 test -n "$verbose" && AC_MSG_RESULT(... $cf_attribute)
1394 cat conftest.h >>confdefs.h
1395 case "$cf_attribute" in
1397 AC_DEFINE_UNQUOTED(GCC_NORETURN,$cf_directive,[Define to noreturn-attribute for gcc])
1400 cf_value='/* nothing */'
1401 if test "$cf_printf_attribute" != no ; then
1402 cf_value='__attribute__((format(printf,fmt,var)))'
1403 AC_DEFINE(GCC_PRINTF,1,[Define to 1 if the compiler supports gcc-like printf attribute.])
1405 AC_DEFINE_UNQUOTED(GCC_PRINTFLIKE(fmt,var),$cf_value,[Define to printf-attribute for gcc])
1408 cf_value='/* nothing */'
1409 if test "$cf_scanf_attribute" != no ; then
1410 cf_value='__attribute__((format(scanf,fmt,var)))'
1411 AC_DEFINE(GCC_SCANF,1,[Define to 1 if the compiler supports gcc-like scanf attribute.])
1413 AC_DEFINE_UNQUOTED(GCC_SCANFLIKE(fmt,var),$cf_value,[Define to sscanf-attribute for gcc])
1416 AC_DEFINE_UNQUOTED(GCC_UNUSED,$cf_directive,[Define to unused-attribute for gcc])
1422 ${FGREP-fgrep} define conftest.i >>confdefs.h
1427 dnl ---------------------------------------------------------------------------
1428 dnl CF_GCC_VERSION version: 8 updated: 2019/09/07 13:38:36
1430 dnl Find version of gcc, and (because icc/clang pretend to be gcc without being
1431 dnl compatible), attempt to determine if icc/clang is actually used.
1432 AC_DEFUN([CF_GCC_VERSION],[
1433 AC_REQUIRE([AC_PROG_CC])
1435 if test "$GCC" = yes ; then
1436 AC_MSG_CHECKING(version of $CC)
1437 GCC_VERSION="`${CC} --version 2>/dev/null | sed -e '2,$d' -e 's/^.*(GCC[[^)]]*) //' -e 's/^.*(Debian[[^)]]*) //' -e 's/^[[^0-9.]]*//' -e 's/[[^0-9.]].*//'`"
1438 test -z "$GCC_VERSION" && GCC_VERSION=unknown
1439 AC_MSG_RESULT($GCC_VERSION)
1441 CF_INTEL_COMPILER(GCC,INTEL_COMPILER,CFLAGS)
1442 CF_CLANG_COMPILER(GCC,CLANG_COMPILER,CFLAGS)
1444 dnl ---------------------------------------------------------------------------
1445 dnl CF_GCC_WARNINGS version: 41 updated: 2021/01/01 16:53:59
1447 dnl Check if the compiler supports useful warning options. There's a few that
1448 dnl we don't use, simply because they're too noisy:
1450 dnl -Wconversion (useful in older versions of gcc, but not in gcc 2.7.x)
1451 dnl -Winline (usually not worthwhile)
1452 dnl -Wredundant-decls (system headers make this too noisy)
1453 dnl -Wtraditional (combines too many unrelated messages, only a few useful)
1454 dnl -Wwrite-strings (too noisy, but should review occasionally). This
1455 dnl is enabled for ncurses using "--enable-const".
1459 dnl $1 is an optional list of gcc warning flags that a particular
1460 dnl application might want to use, e.g., "no-unused" for
1463 dnl If $with_ext_const is "yes", add a check for -Wwrite-strings
1465 AC_DEFUN([CF_GCC_WARNINGS],
1467 AC_REQUIRE([CF_GCC_VERSION])
1468 if test "x$have_x" = xyes; then CF_CONST_X_STRING fi
1469 cat > "conftest.$ac_ext" <<EOF
1470 #line __oline__ "${as_me:-configure}"
1471 int main(int argc, char *argv[[]]) { return (argv[[argc-1]] == 0) ; }
1473 if test "$INTEL_COMPILER" = yes
1475 # The "-wdXXX" options suppress warnings:
1476 # remark #1419: external declaration in primary source file
1477 # remark #1683: explicit conversion of a 64-bit integral type to a smaller integral type (potential portability problem)
1478 # remark #1684: conversion from pointer to same-sized integral type (potential portability problem)
1479 # remark #193: zero used for undefined preprocessing identifier
1480 # remark #593: variable "curs_sb_left_arrow" was set but never used
1481 # remark #810: conversion from "int" to "Dimension={unsigned short}" may lose significant bits
1482 # remark #869: parameter "tw" was never referenced
1483 # remark #981: operands are evaluated in unspecified order
1484 # warning #279: controlling expression is constant
1486 AC_CHECKING([for $CC warning options])
1487 cf_save_CFLAGS="$CFLAGS"
1488 EXTRA_CFLAGS="$EXTRA_CFLAGS -Wall"
1500 CFLAGS="$cf_save_CFLAGS $EXTRA_CFLAGS -$cf_opt"
1501 if AC_TRY_EVAL(ac_compile); then
1502 test -n "$verbose" && AC_MSG_RESULT(... -$cf_opt)
1503 EXTRA_CFLAGS="$EXTRA_CFLAGS -$cf_opt"
1506 CFLAGS="$cf_save_CFLAGS"
1507 elif test "$GCC" = yes && test "$GCC_VERSION" != "unknown"
1509 AC_CHECKING([for $CC warning options])
1510 cf_save_CFLAGS="$CFLAGS"
1512 test "$with_ext_const" = yes && cf_warn_CONST="Wwrite-strings"
1513 cf_gcc_warnings="Wignored-qualifiers Wlogical-op Wvarargs"
1514 test "x$CLANG_COMPILER" = xyes && cf_gcc_warnings=
1515 for cf_opt in W Wall \
1516 Wbad-function-cast \
1519 Wdeclaration-after-statement \
1522 Wmissing-declarations \
1523 Wmissing-prototypes \
1527 Wstrict-prototypes \
1528 Wundef Wno-inline $cf_gcc_warnings $cf_warn_CONST $1
1530 CFLAGS="$cf_save_CFLAGS $EXTRA_CFLAGS -$cf_opt"
1531 if AC_TRY_EVAL(ac_compile); then
1532 test -n "$verbose" && AC_MSG_RESULT(... -$cf_opt)
1535 case "$GCC_VERSION" in
1537 CF_VERBOSE(feature is broken in gcc $GCC_VERSION)
1542 case "$GCC_VERSION" in
1544 CF_VERBOSE(feature is broken in gcc $GCC_VERSION)
1549 EXTRA_CFLAGS="$EXTRA_CFLAGS -$cf_opt"
1552 CFLAGS="$cf_save_CFLAGS"
1556 AC_SUBST(EXTRA_CFLAGS)
1558 dnl ---------------------------------------------------------------------------
1559 dnl CF_GNATPREP_OPT_T version: 1 updated: 2014/08/02 18:37:25
1560 dnl -----------------
1561 AC_DEFUN([CF_GNATPREP_OPT_T],[
1562 AC_CACHE_CHECK(if GNATPREP supports -T option,cf_cv_gnatprep_opt_t,[
1563 cf_cv_gnatprep_opt_t=no
1564 gnatprep -T 2>/dev/null >/dev/null && cf_cv_gnatprep_opt_t=yes
1566 test "$cf_cv_gnatprep_opt_t" = yes && GNATPREP_OPTS="-T $GNATPREP_OPTS"
1567 AC_SUBST(GNATPREP_OPTS)
1569 dnl ---------------------------------------------------------------------------
1570 dnl CF_GNAT_GENERICS version: 7 updated: 2021/01/01 13:31:04
1571 dnl ----------------
1572 AC_DEFUN([CF_GNAT_GENERICS],
1574 AC_REQUIRE([CF_GNAT_VERSION])
1576 AC_MSG_CHECKING(if GNAT supports generics)
1577 case "$cf_cv_gnat_version" in
1578 (3.1[[1-9]]*|3.[[2-9]]*|[[4-9]].*|[[1-9]][[0-9]].[[0-9]]*|20[[0-9]][[0-9]])
1579 cf_gnat_generics=yes
1585 AC_MSG_RESULT($cf_gnat_generics)
1587 if test "$cf_gnat_generics" = yes
1589 cf_compile_generics=generics
1590 cf_generic_objects="\${GENOBJS}"
1592 cf_compile_generics=
1596 AC_SUBST(cf_compile_generics)
1597 AC_SUBST(cf_generic_objects)
1599 dnl ---------------------------------------------------------------------------
1600 dnl CF_GNAT_PROJECTS version: 13 updated: 2021/01/02 17:09:14
1601 dnl ----------------
1602 dnl GNAT projects are configured with ".gpr" project files.
1603 dnl GNAT libraries are a further development, using the project feature.
1604 AC_DEFUN([CF_GNAT_PROJECTS],
1606 AC_REQUIRE([CF_GNAT_VERSION])
1607 AC_REQUIRE([CF_DISABLE_GNAT_PROJECTS])
1609 cf_gnat_libraries=no
1612 if test "$enable_gnat_projects" != no ; then
1613 AC_MSG_CHECKING(if GNAT supports project files)
1614 case "$cf_cv_gnat_version" in
1618 case "$cf_cv_system_name" in
1622 rm -rf ./conftest* ./*~conftest*
1623 if mkdir conftest.src conftest.bin conftest.lib
1626 rm -rf ./conftest* ./*~conftest*
1627 cat >>library.gpr <<CF_EOF
1629 Kind := External ("LIB_KIND");
1630 for Library_Name use "ConfTest";
1631 for Object_Dir use ".";
1632 for Library_ALI_Dir use External("LIBRARY_DIR");
1633 for Library_Version use External ("SONAME");
1634 for Library_Kind use Kind;
1635 for Library_Dir use External("BUILD_DIR");
1636 Source_Dir := External ("SOURCE_DIR");
1637 for Source_Dirs use (Source_Dir);
1640 cat >>confpackage.ads <<CF_EOF
1641 package ConfPackage is
1645 cat >>confpackage.adb <<CF_EOF
1647 package body ConfPackage is
1648 procedure conftest is
1650 Text_IO.Put ("Hello World");
1655 if ( "$cf_ada_make" $ADAFLAGS \
1657 -XBUILD_DIR="`cd ../conftest.bin;pwd`" \
1658 -XLIBRARY_DIR="`cd ../conftest.lib;pwd`" \
1659 -XSOURCE_DIR="`pwd`" \
1660 -XSONAME=libConfTest.so.1 \
1661 -XLIB_KIND=static 1>&AC_FD_CC 2>&1 ) ; then
1662 cf_gnat_projects=yes
1666 if test -f conftest.lib/confpackage.ali
1668 cf_gnat_libraries=yes
1670 rm -rf ./conftest* ./*~conftest*
1675 AC_MSG_RESULT($cf_gnat_projects)
1676 fi # enable_gnat_projects
1678 if test "$cf_gnat_projects" = yes
1680 AC_MSG_CHECKING(if GNAT supports libraries)
1681 AC_MSG_RESULT($cf_gnat_libraries)
1684 USE_OLD_MAKERULES=""
1685 USE_GNAT_PROJECTS="#"
1686 USE_GNAT_MAKE_GPR="#"
1687 USE_GNAT_GPRBUILD="#"
1689 if test "$cf_gnat_projects" = yes
1691 USE_OLD_MAKERULES="#"
1692 USE_GNAT_PROJECTS=""
1693 if test "$cf_cv_VERSION_GPRBUILD" != no
1695 USE_GNAT_GPRBUILD=""
1696 elif test "$cf_cv_VERSION_GNATMAKE" != no
1698 USE_GNAT_MAKE_GPR=""
1700 AC_MSG_WARN(use old makefile rules since tools are missing)
1704 if test "$cf_gnat_libraries" = yes
1706 USE_GNAT_LIBRARIES=""
1708 USE_GNAT_LIBRARIES="#"
1711 AC_SUBST(USE_OLD_MAKERULES)
1712 AC_SUBST(USE_GNAT_PROJECTS)
1713 AC_SUBST(USE_GNAT_LIBRARIES)
1714 AC_SUBST(USE_GNAT_MAKE_GPR)
1715 AC_SUBST(USE_GNAT_GPRBUILD)
1717 dnl ---------------------------------------------------------------------------
1718 dnl CF_GNAT_SIGINT version: 2 updated: 2021/01/01 13:31:04
1720 dnl Check if gnat supports SIGINT, and presumably tasking. For the latter, it
1721 dnl is noted that gnat may compile a tasking unit even for configurations which
1722 dnl fail at runtime.
1723 AC_DEFUN([CF_GNAT_SIGINT],[
1724 AC_CACHE_CHECK(if GNAT supports SIGINT,cf_cv_gnat_sigint,[
1725 CF_GNAT_TRY_LINK([with Ada.Interrupts.Names;
1729 pragma Warnings (Off); -- the next pragma exists since 3.11p
1730 pragma Unreserve_All_Interrupts;
1731 pragma Warnings (On);
1733 protected Process is
1735 function Continue return Boolean;
1736 pragma Attach_Handler (Stop, Ada.Interrupts.Names.SIGINT);
1738 Done : Boolean := False;
1742 [package body ConfTest is
1743 protected body Process is
1748 function Continue return Boolean is
1754 [cf_cv_gnat_sigint=yes],
1755 [cf_cv_gnat_sigint=no])])
1757 if test "$cf_cv_gnat_sigint" = yes ; then
1762 AC_SUBST(USE_GNAT_SIGINT)
1764 dnl ---------------------------------------------------------------------------
1765 dnl CF_GNAT_TRY_LINK version: 4 updated: 2021/01/01 13:31:04
1766 dnl ----------------
1767 dnl Verify that a test program compiles/links with GNAT.
1768 dnl $cf_ada_make is set to the program that compiles/links
1769 dnl $ADAFLAGS may be set to the GNAT flags.
1771 dnl $1 is the text of the spec
1772 dnl $2 is the text of the body
1773 dnl $3 is the shell command to execute if successful
1774 dnl $4 is the shell command to execute if not successful
1775 AC_DEFUN([CF_GNAT_TRY_LINK],
1777 rm -rf ./conftest* ./*~conftest*
1778 cat >>conftest.ads <<CF_EOF
1781 cat >>conftest.adb <<CF_EOF
1784 if ( "$cf_ada_make" $ADAFLAGS conftest 1>&AC_FD_CC 2>&1 ) ; then
1785 ifelse($3,, :,[ $3])
1789 rm -rf ./conftest* ./*~conftest*
1791 dnl ---------------------------------------------------------------------------
1792 dnl CF_GNAT_TRY_RUN version: 6 updated: 2021/01/01 13:31:04
1794 dnl Verify that a test program compiles and runs with GNAT
1795 dnl $cf_ada_make is set to the program that compiles/links
1796 dnl $ADAFLAGS may be set to the GNAT flags.
1798 dnl $1 is the text of the spec
1799 dnl $2 is the text of the body
1800 dnl $3 is the shell command to execute if successful
1801 dnl $4 is the shell command to execute if not successful
1802 AC_DEFUN([CF_GNAT_TRY_RUN],
1804 rm -rf ./conftest* ./*~conftest*
1805 cat >>conftest.ads <<CF_EOF
1808 cat >>conftest.adb <<CF_EOF
1811 if ( "$cf_ada_make" $ADAFLAGS conftest 1>&AC_FD_CC 2>&1 ) ; then
1812 if ( ./conftest 1>&AC_FD_CC 2>&1 ) ; then
1813 ifelse($3,, :,[ $3])
1820 rm -rf ./conftest* ./*~conftest*
1822 dnl ---------------------------------------------------------------------------
1823 dnl CF_GNAT_VERSION version: 22 updated: 2019/12/31 08:53:54
1825 dnl $1 = cache variable to update
1826 dnl $2 = program name
1827 dnl Verify version of GNAT or related tool
1828 AC_DEFUN([CF_GNAT_VERSION],
1830 AC_CACHE_CHECK(for ifelse($2,,gnat,$2) version, cf_cv_gnat_version,[
1831 cf_cv_gnat_version=`ifelse($2,,${cf_ada_make:-gnatmake},$2) --version 2>&1 | \
1832 grep '[[0-9]].[[0-9]][[0-9]]*' |\
1833 sed -e '2,$d' -e 's/[[^0-9 \.]]//g' -e 's/^[[ ]]*//' -e 's/ .*//'`
1835 test -z "$cf_cv_gnat_version" && cf_cv_gnat_version=no
1836 ifelse($1,,,[eval $1=$cf_cv_gnat_version; unset cf_cv_gnat_version])
1838 dnl ---------------------------------------------------------------------------
1839 dnl CF_GNU_SOURCE version: 10 updated: 2018/12/10 20:09:41
1841 dnl Check if we must define _GNU_SOURCE to get a reasonable value for
1842 dnl _XOPEN_SOURCE, upon which many POSIX definitions depend. This is a defect
1843 dnl (or misfeature) of glibc2, which breaks portability of many applications,
1844 dnl since it is interwoven with GNU extensions.
1846 dnl Well, yes we could work around it...
1849 dnl $1 is the nominal value for _XOPEN_SOURCE
1850 AC_DEFUN([CF_GNU_SOURCE],
1852 cf_gnu_xopen_source=ifelse($1,,500,$1)
1854 AC_CACHE_CHECK(if this is the GNU C library,cf_cv_gnu_library,[
1855 AC_TRY_COMPILE([#include <sys/types.h>],[
1856 #if __GLIBC__ > 0 && __GLIBC_MINOR__ >= 0
1858 #elif __NEWLIB__ > 0 && __NEWLIB_MINOR__ >= 0
1861 # error not GNU C library
1863 [cf_cv_gnu_library=yes],
1864 [cf_cv_gnu_library=no])
1867 if test x$cf_cv_gnu_library = xyes; then
1869 # With glibc 2.19 (13 years after this check was begun), _DEFAULT_SOURCE
1870 # was changed to help a little. newlib incorporated the change about 4
1872 AC_CACHE_CHECK(if _DEFAULT_SOURCE can be used as a basis,cf_cv_gnu_library_219,[
1874 CF_APPEND_TEXT(CPPFLAGS,-D_DEFAULT_SOURCE)
1875 AC_TRY_COMPILE([#include <sys/types.h>],[
1876 #if (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 19) || (__GLIBC__ > 2)
1878 #elif (__NEWLIB__ == 2 && __NEWLIB_MINOR__ >= 4) || (__GLIBC__ > 3)
1881 # error GNU C library __GLIBC__.__GLIBC_MINOR__ is too old
1883 [cf_cv_gnu_library_219=yes],
1884 [cf_cv_gnu_library_219=no])
1888 if test "x$cf_cv_gnu_library_219" = xyes; then
1890 AC_CACHE_CHECK(if _XOPEN_SOURCE=$cf_gnu_xopen_source works with _DEFAULT_SOURCE,cf_cv_gnu_dftsrc_219,[
1891 CF_ADD_CFLAGS(-D_DEFAULT_SOURCE -D_XOPEN_SOURCE=$cf_gnu_xopen_source)
1894 #include <sys/types.h>
1896 #if (_XOPEN_SOURCE >= $cf_gnu_xopen_source) && (MB_LEN_MAX > 1)
1899 # error GNU C library is too old
1901 [cf_cv_gnu_dftsrc_219=yes],
1902 [cf_cv_gnu_dftsrc_219=no])
1904 test "x$cf_cv_gnu_dftsrc_219" = "xyes" || CPPFLAGS="$cf_save"
1906 cf_cv_gnu_dftsrc_219=maybe
1909 if test "x$cf_cv_gnu_dftsrc_219" != xyes; then
1911 AC_CACHE_CHECK(if we must define _GNU_SOURCE,cf_cv_gnu_source,[
1912 AC_TRY_COMPILE([#include <sys/types.h>],[
1913 #ifndef _XOPEN_SOURCE
1914 #error expected _XOPEN_SOURCE to be defined
1916 [cf_cv_gnu_source=no],
1917 [cf_save="$CPPFLAGS"
1918 CF_ADD_CFLAGS(-D_GNU_SOURCE)
1919 AC_TRY_COMPILE([#include <sys/types.h>],[
1920 #ifdef _XOPEN_SOURCE
1921 #error expected _XOPEN_SOURCE to be undefined
1923 [cf_cv_gnu_source=no],
1924 [cf_cv_gnu_source=yes])
1929 if test "$cf_cv_gnu_source" = yes
1931 AC_CACHE_CHECK(if we should also define _DEFAULT_SOURCE,cf_cv_default_source,[
1932 CF_APPEND_TEXT(CPPFLAGS,-D_GNU_SOURCE)
1933 AC_TRY_COMPILE([#include <sys/types.h>],[
1934 #ifdef _DEFAULT_SOURCE
1935 #error expected _DEFAULT_SOURCE to be undefined
1937 [cf_cv_default_source=no],
1938 [cf_cv_default_source=yes])
1940 if test "$cf_cv_default_source" = yes
1942 CF_APPEND_TEXT(CPPFLAGS,-D_DEFAULT_SOURCE)
1949 dnl ---------------------------------------------------------------------------
1950 dnl CF_HEADER_PATH version: 15 updated: 2021/01/01 13:31:04
1952 dnl Construct a search-list of directories for a nonstandard header-file
1955 dnl $1 = the variable to return as result
1956 dnl $2 = the package name
1957 AC_DEFUN([CF_HEADER_PATH],
1961 # collect the current set of include-directories from compiler flags
1962 cf_header_path_list=""
1963 if test -n "${CFLAGS}${CPPFLAGS}" ; then
1964 for cf_header_path in $CPPFLAGS $CFLAGS
1966 case "$cf_header_path" in
1968 cf_header_path=`echo ".$cf_header_path" |sed -e 's/^...//' -e 's,/include$,,'`
1969 CF_ADD_SUBDIR_PATH($1,$2,include,$cf_header_path,NONE)
1970 cf_header_path_list="$cf_header_path_list [$]$1"
1976 # add the variations for the package we are looking for
1977 CF_SUBDIR_PATH($1,$2,include)
1979 test "$includedir" != NONE && \
1980 test "$includedir" != "/usr/include" && \
1981 test -d "$includedir" && {
1982 test -d "$includedir" && $1="[$]$1 $includedir"
1983 test -d "$includedir/$2" && $1="[$]$1 $includedir/$2"
1986 test "$oldincludedir" != NONE && \
1987 test "$oldincludedir" != "/usr/include" && \
1988 test -d "$oldincludedir" && {
1989 test -d "$oldincludedir" && $1="[$]$1 $oldincludedir"
1990 test -d "$oldincludedir/$2" && $1="[$]$1 $oldincludedir/$2"
1993 $1="[$]$1 $cf_header_path_list"
1995 dnl ---------------------------------------------------------------------------
1996 dnl CF_HELP_MESSAGE version: 4 updated: 2019/12/31 08:53:54
1998 dnl Insert text into the help-message, for readability, from AC_ARG_WITH.
1999 AC_DEFUN([CF_HELP_MESSAGE],
2000 [CF_ACVERSION_CHECK(2.53,[],[
2001 AC_DIVERT_HELP($1)])dnl
2003 dnl ---------------------------------------------------------------------------
2004 dnl CF_INCLUDE_DIRS version: 10 updated: 2014/09/19 20:58:42
2006 dnl Construct the list of include-options according to whether we're building
2007 dnl in the source directory or using '--srcdir=DIR' option.
2008 AC_DEFUN([CF_INCLUDE_DIRS],
2010 if test "$srcdir" != "."; then
2011 CPPFLAGS="-I\${srcdir}/../include $CPPFLAGS"
2013 CPPFLAGS="-I../include $CPPFLAGS"
2014 if test "$srcdir" != "."; then
2015 CPPFLAGS="-I\${srcdir} $CPPFLAGS"
2017 CPPFLAGS="-I. $CPPFLAGS"
2020 dnl ---------------------------------------------------------------------------
2021 dnl CF_INSTALL_OPTS version: 2 updated: 2018/08/18 12:19:21
2023 dnl prompt for/fill-in useful install-program options
2024 AC_DEFUN([CF_INSTALL_OPTS],
2030 dnl ---------------------------------------------------------------------------
2031 dnl CF_INSTALL_OPT_O version: 3 updated: 2020/12/31 20:19:42
2032 dnl ----------------
2033 dnl Almost all "install" programs default to the current user's ownership.
2034 dnl Almost - MINIX is an exception.
2035 AC_DEFUN([CF_INSTALL_OPT_O],
2037 AC_MSG_CHECKING(if install needs to be told about ownership)
2038 case `$ac_config_guess` in
2047 AC_MSG_RESULT($with_install_o)
2048 if test "x$with_install_o" = xyes
2050 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'`"
2055 AC_SUBST(INSTALL_OPT_O)
2057 dnl ---------------------------------------------------------------------------
2058 dnl CF_INSTALL_OPT_P version: 3 updated: 2021/01/01 13:31:04
2059 dnl ----------------
2060 dnl Some install-programs accept a "-p" option to preserve file modification
2061 dnl timestamps. That can be useful as an install option, as well as a way to
2062 dnl avoid the need for ranlib after copying a static archive.
2063 AC_DEFUN([CF_INSTALL_OPT_P],
2065 : "${INSTALL:=install}"
2066 AC_CACHE_CHECK(if install accepts -p option, cf_cv_install_p,[
2071 if $INSTALL -p conftest.in conftest.out 2>/dev/null
2073 if test -f conftest.out/conftest.in
2075 test conftest.in -nt conftest.out/conftest.in 2>conftest.err && \
2076 test conftest.out/conftest.in -nt conftest.in 2>conftest.err
2077 if test -s conftest.err
2092 dnl ---------------------------------------------------------------------------
2093 dnl CF_INSTALL_OPT_S version: 3 updated: 2021/01/05 19:23:48
2094 dnl ----------------
2095 dnl By default, we should strip executables which are installed, but leave the
2096 dnl ability to suppress that for unit-testing.
2097 AC_DEFUN([CF_INSTALL_OPT_S],
2099 AC_MSG_CHECKING(if you want to install stripped executables)
2100 CF_ARG_DISABLE(stripping,
2101 [ --disable-stripping do not strip (debug info) installed executables],
2102 [enable_stripping=no],
2103 [enable_stripping=yes])
2104 AC_MSG_RESULT($enable_stripping)
2106 if test "$enable_stripping" = yes
2112 AC_SUBST(INSTALL_OPT_S)
2114 dnl ---------------------------------------------------------------------------
2115 dnl CF_INTEL_COMPILER version: 8 updated: 2021/01/01 16:53:59
2116 dnl -----------------
2117 dnl Check if the given compiler is really the Intel compiler for Linux. It
2118 dnl tries to imitate gcc, but does not return an error when it finds a mismatch
2119 dnl between prototypes, e.g., as exercised by CF_MISSING_CHECK.
2121 dnl This macro should be run "soon" after AC_PROG_CC or AC_PROG_CPLUSPLUS, to
2122 dnl ensure that it is not mistaken for gcc/g++. It is normally invoked from
2123 dnl the wrappers for gcc and g++ warnings.
2125 dnl $1 = GCC (default) or GXX
2126 dnl $2 = INTEL_COMPILER (default) or INTEL_CPLUSPLUS
2127 dnl $3 = CFLAGS (default) or CXXFLAGS
2128 AC_DEFUN([CF_INTEL_COMPILER],[
2129 AC_REQUIRE([AC_CANONICAL_HOST])
2130 ifelse([$2],,INTEL_COMPILER,[$2])=no
2132 if test "$ifelse([$1],,[$1],GCC)" = yes ; then
2135 AC_MSG_CHECKING(if this is really Intel ifelse([$1],GXX,C++,C) compiler)
2136 cf_save_CFLAGS="$ifelse([$3],,CFLAGS,[$3])"
2137 ifelse([$3],,CFLAGS,[$3])="$ifelse([$3],,CFLAGS,[$3]) -no-gcc"
2139 #ifdef __INTEL_COMPILER
2143 ],[ifelse([$2],,INTEL_COMPILER,[$2])=yes
2144 cf_save_CFLAGS="$cf_save_CFLAGS -we147"
2146 ifelse([$3],,CFLAGS,[$3])="$cf_save_CFLAGS"
2147 AC_MSG_RESULT($ifelse([$2],,INTEL_COMPILER,[$2]))
2152 dnl ---------------------------------------------------------------------------
2153 dnl CF_LARGEFILE version: 12 updated: 2020/03/19 20:23:48
2155 dnl Add checks for large file support.
2156 AC_DEFUN([CF_LARGEFILE],[
2157 ifdef([AC_FUNC_FSEEKO],[
2159 if test "$enable_largefile" != no ; then
2162 # Normally we would collect these definitions in the config.h,
2163 # but (like _XOPEN_SOURCE), some environments rely on having these
2164 # defined before any of the system headers are included. Another
2165 # case comes up with C++, e.g., on AIX the compiler compiles the
2166 # header files by themselves before looking at the body files it is
2167 # told to compile. For ncurses, those header files do not include
2169 if test "$ac_cv_sys_large_files" != no
2171 CF_APPEND_TEXT(CPPFLAGS,-D_LARGE_FILES)
2173 if test "$ac_cv_sys_largefile_source" != no
2175 CF_APPEND_TEXT(CPPFLAGS,-D_LARGEFILE_SOURCE)
2177 if test "$ac_cv_sys_file_offset_bits" != no
2179 CF_APPEND_TEXT(CPPFLAGS,-D_FILE_OFFSET_BITS=$ac_cv_sys_file_offset_bits)
2182 AC_CACHE_CHECK(whether to use struct dirent64, cf_cv_struct_dirent64,[
2184 #pragma GCC diagnostic error "-Wincompatible-pointer-types"
2185 #include <sys/types.h>
2188 /* if transitional largefile support is setup, this is true */
2189 extern struct dirent64 * readdir(DIR *);
2190 struct dirent64 *x = readdir((DIR *)0);
2191 struct dirent *y = readdir((DIR *)0);
2195 [cf_cv_struct_dirent64=yes],
2196 [cf_cv_struct_dirent64=no])
2198 test "$cf_cv_struct_dirent64" = yes && AC_DEFINE(HAVE_STRUCT_DIRENT64,1,[Define to 1 if we have struct dirent64])
2202 dnl ---------------------------------------------------------------------------
2203 dnl CF_LD_RPATH_OPT version: 9 updated: 2021/01/01 13:31:04
2205 dnl For the given system and compiler, find the compiler flags to pass to the
2206 dnl loader to use the "rpath" feature.
2207 AC_DEFUN([CF_LD_RPATH_OPT],
2209 AC_REQUIRE([CF_CHECK_CACHE])
2212 if test "x$cf_cv_enable_rpath" != xno
2214 AC_MSG_CHECKING(for an rpath option)
2215 case "$cf_cv_system_name" in
2217 if test "$GCC" = yes; then
2218 LD_RPATH_OPT="-Wl,-rpath,"
2220 LD_RPATH_OPT="-rpath "
2223 (linux*|gnu*|k*bsd*-gnu|freebsd*)
2224 LD_RPATH_OPT="-Wl,-rpath,"
2226 (openbsd[[2-9]].*|mirbsd*)
2227 LD_RPATH_OPT="-Wl,-rpath,"
2230 LD_RPATH_OPT="-rpath "
2233 LD_RPATH_OPT="-Wl,-rpath,"
2236 LD_RPATH_OPT="-rpath "
2244 AC_MSG_RESULT($LD_RPATH_OPT)
2246 case "x$LD_RPATH_OPT" in
2248 AC_MSG_CHECKING(if we need a space after rpath option)
2249 cf_save_LIBS="$LIBS"
2250 CF_ADD_LIBS(${LD_RPATH_OPT}$libdir)
2251 AC_TRY_LINK(, , cf_rpath_space=no, cf_rpath_space=yes)
2252 LIBS="$cf_save_LIBS"
2253 AC_MSG_RESULT($cf_rpath_space)
2254 test "$cf_rpath_space" = yes && LD_RPATH_OPT="$LD_RPATH_OPT "
2259 dnl ---------------------------------------------------------------------------
2260 dnl CF_LIBRARY_PATH version: 11 updated: 2021/01/01 13:31:04
2262 dnl Construct a search-list of directories for a nonstandard library-file
2265 dnl $1 = the variable to return as result
2266 dnl $2 = the package name
2267 AC_DEFUN([CF_LIBRARY_PATH],
2270 cf_library_path_list=""
2271 if test -n "${LDFLAGS}${LIBS}" ; then
2272 for cf_library_path in $LDFLAGS $LIBS
2274 case "$cf_library_path" in
2276 cf_library_path=`echo ".$cf_library_path" |sed -e 's/^...//' -e 's,/lib$,,'`
2277 CF_ADD_SUBDIR_PATH($1,$2,lib,$cf_library_path,NONE)
2278 cf_library_path_list="$cf_library_path_list [$]$1"
2284 CF_SUBDIR_PATH($1,$2,lib)
2286 $1="$cf_library_path_list [$]$1"
2288 dnl ---------------------------------------------------------------------------
2289 dnl CF_LIB_PREFIX version: 14 updated: 2021/01/01 13:31:04
2291 dnl Compute the library-prefix for the given host system
2292 dnl $1 = variable to set
2293 define([CF_LIB_PREFIX],
2295 case "$cf_cv_system_name" in
2297 if test "$DFT_LWR_MODEL" = libtool; then
2306 (*) LIB_PREFIX='lib'
2309 ifelse($1,,,[$1=$LIB_PREFIX])
2310 AC_SUBST(LIB_PREFIX)
2312 dnl ---------------------------------------------------------------------------
2313 dnl CF_LIB_SUFFIX version: 28 updated: 2021/01/01 16:53:59
2315 dnl Compute the library file-suffix from the given model name
2317 dnl $2 = variable to set (the nominal library suffix)
2318 dnl $3 = dependency variable to set (actual filename)
2319 dnl The variable $LIB_SUFFIX, if set, prepends the variable to set.
2320 AC_DEFUN([CF_LIB_SUFFIX],
2328 case "$cf_cv_system_name" in
2339 case "$cf_cv_system_name" in
2350 case "$cf_cv_system_name" in
2359 (cygwin*|msys*|mingw*)
2397 if test -n "${LIB_SUFFIX}${EXTRA_SUFFIX}"
2399 $2="${LIB_SUFFIX}${EXTRA_SUFFIX}[$]{$2}"
2400 $3="${LIB_SUFFIX}${EXTRA_SUFFIX}[$]{$3}"
2403 dnl ---------------------------------------------------------------------------
2404 dnl CF_LIB_TYPE version: 5 updated: 2015/04/17 21:13:04
2406 dnl Compute the string to append to -library from the given model name
2408 dnl $2 = variable to set
2409 dnl The variable $LIB_SUFFIX, if set, prepends the variable to set.
2410 AC_DEFUN([CF_LIB_TYPE],
2416 (profile) $2='_p' ;;
2419 test -n "$LIB_SUFFIX" && $2="${LIB_SUFFIX}[$]{$2}"
2421 dnl ---------------------------------------------------------------------------
2422 dnl CF_LINK_DATAONLY version: 13 updated: 2020/02/08 15:59:30
2423 dnl ----------------
2424 dnl Some systems have a non-ANSI linker that doesn't pull in modules that have
2425 dnl only data (i.e., no functions), for example NeXT. On those systems we'll
2426 dnl have to provide wrappers for global tables to ensure they're linked
2428 AC_DEFUN([CF_LINK_DATAONLY],
2430 AC_MSG_CHECKING([if data-only library module links])
2431 AC_CACHE_VAL(cf_cv_link_dataonly,[
2433 cat >conftest.$ac_ext <<EOF
2434 #line __oline__ "configure"
2435 int testdata[[3]] = { 123, 456, 789 };
2437 if AC_TRY_EVAL(ac_compile) ; then
2438 mv conftest.o data.o && \
2439 ( $AR $ARFLAGS conftest.a data.o ) 2>&AC_FD_CC 1>/dev/null
2441 rm -f conftest.$ac_ext data.o
2442 cat >conftest.$ac_ext <<EOF
2443 #line __oline__ "configure"
2447 ${cf_cv_main_return:-return}(1); /* I'm told this linker is broken */
2449 extern int testdata[[3]];
2450 return testdata[[0]] == 123
2451 && testdata[[1]] == 456
2452 && testdata[[2]] == 789;
2456 if AC_TRY_EVAL(ac_compile); then
2457 mv conftest.o func.o && \
2458 ( $AR $ARFLAGS conftest.a func.o ) 2>&AC_FD_CC 1>/dev/null
2460 rm -f conftest.$ac_ext func.o
2461 ( eval $RANLIB conftest.a ) 2>&AC_FD_CC >/dev/null
2463 LIBS="conftest.a $LIBS"
2467 extern int testfunc();
2468 ${cf_cv_main_return:-return} (!testfunc());
2471 [cf_cv_link_dataonly=yes],
2472 [cf_cv_link_dataonly=no],
2473 [cf_cv_link_dataonly=unknown])
2476 AC_MSG_RESULT($cf_cv_link_dataonly)
2478 if test "$cf_cv_link_dataonly" = no ; then
2479 AC_DEFINE(BROKEN_LINKER,1,[if data-only library module does not link])
2482 AC_SUBST(BROKEN_LINKER)
2485 dnl ---------------------------------------------------------------------------
2486 dnl CF_MAKEFLAGS version: 20 updated: 2021/01/03 19:29:49
2488 dnl Some 'make' programs support ${MAKEFLAGS}, some ${MFLAGS}, to pass 'make'
2489 dnl options to lower-levels. It's very useful for "make -n" -- if we have it.
2490 dnl (GNU 'make' does both, something POSIX 'make', which happens to make the
2491 dnl ${MAKEFLAGS} variable incompatible because it adds the assignments :-)
2492 AC_DEFUN([CF_MAKEFLAGS],
2493 [AC_REQUIRE([AC_PROG_FGREP])dnl
2495 AC_CACHE_CHECK(for makeflags variable, cf_cv_makeflags,[
2497 for cf_option in '-${MAKEFLAGS}' '${MFLAGS}'
2499 cat >cf_makeflags.tmp <<CF_EOF
2502 @ echo '.$cf_option'
2504 cf_result=`${MAKE:-make} -k -f cf_makeflags.tmp 2>/dev/null | ${FGREP-fgrep} -v "ing directory" | sed -e 's,[[ ]]*$,,'`
2505 case "$cf_result" in
2507 cf_result="`${MAKE:-make} -k -f cf_makeflags.tmp CC=cc 2>/dev/null`"
2508 case "$cf_result" in
2509 (.*CC=*) cf_cv_makeflags=
2511 (*) cf_cv_makeflags=$cf_option
2519 CF_MSG_LOG(given option \"$cf_option\", no match \"$cf_result\")
2523 rm -f cf_makeflags.tmp
2526 AC_SUBST(cf_cv_makeflags)
2528 dnl ---------------------------------------------------------------------------
2529 dnl CF_MAKE_TAGS version: 6 updated: 2010/10/23 15:52:32
2531 dnl Generate tags/TAGS targets for makefiles. Do not generate TAGS if we have
2532 dnl a monocase filesystem.
2533 AC_DEFUN([CF_MAKE_TAGS],[
2534 AC_REQUIRE([CF_MIXEDCASE_FILENAMES])
2536 AC_CHECK_PROGS(CTAGS, exctags ctags)
2537 AC_CHECK_PROGS(ETAGS, exetags etags)
2539 AC_CHECK_PROG(MAKE_LOWER_TAGS, ${CTAGS:-ctags}, yes, no)
2541 if test "$cf_cv_mixedcase" = yes ; then
2542 AC_CHECK_PROG(MAKE_UPPER_TAGS, ${ETAGS:-etags}, yes, no)
2547 if test "$MAKE_UPPER_TAGS" = yes ; then
2553 if test "$MAKE_LOWER_TAGS" = yes ; then
2562 AC_SUBST(MAKE_UPPER_TAGS)
2563 AC_SUBST(MAKE_LOWER_TAGS)
2565 dnl ---------------------------------------------------------------------------
2566 dnl CF_MIXEDCASE_FILENAMES version: 9 updated: 2021/01/01 16:53:59
2567 dnl ----------------------
2568 dnl Check if the file-system supports mixed-case filenames. If we're able to
2569 dnl create a lowercase name and see it as uppercase, it doesn't support that.
2570 AC_DEFUN([CF_MIXEDCASE_FILENAMES],
2572 AC_CACHE_CHECK(if filesystem supports mixed-case filenames,cf_cv_mixedcase,[
2573 if test "$cross_compiling" = yes ; then
2574 case "$target_alias" in
2575 (*-os2-emx*|*-msdosdjgpp*|*-cygwin*|*-msys*|*-mingw*|*-uwin*|darwin*)
2583 rm -f conftest CONFTEST
2585 if test -f CONFTEST ; then
2590 rm -f conftest CONFTEST
2593 test "$cf_cv_mixedcase" = yes && AC_DEFINE(MIXEDCASE_FILENAMES,1,[Define to 1 if filesystem supports mixed-case filenames.])
2595 dnl ---------------------------------------------------------------------------
2596 dnl CF_MKSTEMP version: 11 updated: 2021/01/01 13:31:04
2598 dnl Check for a working mkstemp. This creates two files, checks that they are
2599 dnl successfully created and distinct (AmigaOS apparently fails on the last).
2600 AC_DEFUN([CF_MKSTEMP],[
2604 AC_CACHE_CHECK(for working mkstemp, cf_cv_func_mkstemp,[
2607 #include <sys/types.h>
2608 #ifdef HAVE_UNISTD_H
2614 #include <sys/stat.h>
2617 char *tmpl = "conftestXXXXXX";
2625 for (n = 0; n < 2; ++n) {
2626 strcpy(name[n], tmpl);
2627 if ((fd = mkstemp(name[n])) >= 0) {
2628 if (!strcmp(name[n], tmpl)
2629 || stat(name[n], &sb) != 0
2630 || (sb.st_mode & S_IFMT) != S_IFREG
2631 || (sb.st_mode & 077) != 0) {
2638 && !strcmp(name[0], name[1]))
2640 ${cf_cv_main_return:-return}(result);
2642 ],[cf_cv_func_mkstemp=yes
2643 ],[cf_cv_func_mkstemp=no
2644 ],[cf_cv_func_mkstemp=maybe])
2646 if test "x$cf_cv_func_mkstemp" = xmaybe ; then
2647 AC_CHECK_FUNC(mkstemp)
2649 if test "x$cf_cv_func_mkstemp" = xyes || test "x$ac_cv_func_mkstemp" = xyes ; then
2650 AC_DEFINE(HAVE_MKSTEMP,1,[Define to 1 if mkstemp() is available and working.])
2653 dnl ---------------------------------------------------------------------------
2654 dnl CF_MSG_LOG version: 5 updated: 2010/10/23 15:52:32
2656 dnl Write a debug message to config.log, along with the line number in the
2657 dnl configure script.
2658 AC_DEFUN([CF_MSG_LOG],[
2659 echo "${as_me:-configure}:__oline__: testing $* ..." 1>&AC_FD_CC
2661 dnl ---------------------------------------------------------------------------
2662 dnl CF_NCURSES_ADDON version: 6 updated: 2021/01/04 19:33:05
2663 dnl ----------------
2664 dnl Configure an ncurses add-on, built outside the ncurses tree.
2665 AC_DEFUN([CF_NCURSES_ADDON],[
2666 AC_REQUIRE([CF_NCURSES_CONFIG])
2668 AC_PROVIDE([CF_SUBST_NCURSES_VERSION])
2670 AC_MSG_CHECKING(if you want wide-character code)
2671 AC_ARG_ENABLE(widec,
2672 [ --enable-widec compile with wide-char/UTF-8 code],
2673 [with_widec=$enableval],
2675 AC_MSG_RESULT($with_widec)
2676 if test "$with_widec" = yes ; then
2678 CF_NCURSES_CONFIG(ncursesw)
2680 CF_NCURSES_CONFIG(ncurses)
2683 if test "$NCURSES_CONFIG_PKG" != none ; then
2684 cf_version=`$PKG_CONFIG --modversion $NCURSES_CONFIG_PKG 2>/dev/null`
2686 NCURSES_MAJOR=`echo "$cf_version" | sed -e 's/\..*//'`
2687 NCURSES_MINOR=`echo "$cf_version" | sed -e 's/^[[0-9]][[0-9]]*\.//' -e 's/\..*//'`
2688 NCURSES_PATCH=`echo "$cf_version" | sed -e 's/^[[0-9]][[0-9]]*\.[[0-9]][[0-9]]*\.//'`
2690 cf_cv_abi_version=`$PKG_CONFIG --variable=abi_version $NCURSES_CONFIG_PKG 2>/dev/null`
2691 if test -z "$cf_cv_abi_version"
2693 cf_cv_abi_version=`$PKG_CONFIG --variable=major_version $NCURSES_CONFIG_PKG 2>/dev/null`
2696 elif test "$NCURSES_CONFIG" != none ; then
2698 cf_version=`$NCURSES_CONFIG --version 2>/dev/null`
2700 NCURSES_MAJOR=`echo "$cf_version" | sed -e 's/\..*//'`
2701 NCURSES_MINOR=`echo "$cf_version" | sed -e 's/^[[0-9]][[0-9]]*\.//' -e 's/\..*//'`
2702 NCURSES_PATCH=`echo "$cf_version" | sed -e 's/^[[0-9]][[0-9]]*\.[[0-9]][[0-9]]*\.//'`
2704 # ABI version is not available from headers
2705 cf_cv_abi_version=`$NCURSES_CONFIG --abi-version 2>/dev/null`
2709 for cf_name in MAJOR MINOR PATCH
2711 cat >conftest.$ac_ext <<CF_EOF
2712 #include <${cf_cv_ncurses_header:-curses.h}>
2713 AUTOCONF_$cf_name NCURSES_VERSION_$cf_name
2715 cf_try="$ac_cpp conftest.$ac_ext 2>&5 | fgrep AUTOCONF_$cf_name >conftest.out"
2717 if test -f conftest.out ; then
2718 cf_result=`sed -e "s/^.*AUTOCONF_${cf_name}[[ ]][[ ]]*//" conftest.out`
2719 eval NCURSES_$cf_name=\"$cf_result\"
2720 # cat conftest.$ac_ext
2725 cf_cv_abi_version=${NCURSES_MAJOR}
2729 cf_cv_rel_version=${NCURSES_MAJOR}.${NCURSES_MINOR}
2731 dnl Show the computed version, for logging
2732 cf_cv_timestamp=`date`
2734 AC_MSG_RESULT(Configuring NCURSES $cf_cv_rel_version ABI $cf_cv_abi_version ($cf_cv_timestamp))
2736 dnl We need these values in the generated headers
2737 AC_SUBST(NCURSES_MAJOR)
2738 AC_SUBST(NCURSES_MINOR)
2739 AC_SUBST(NCURSES_PATCH)
2741 dnl We need these values in the generated makefiles
2742 AC_SUBST(cf_cv_rel_version)
2743 AC_SUBST(cf_cv_abi_version)
2745 dnl FIXME - not needed for Ada95
2746 AC_SUBST(cf_cv_builtin_bool)
2747 AC_SUBST(cf_cv_header_stdbool_h)
2748 AC_SUBST(cf_cv_type_of_bool)dnl
2751 dnl ---------------------------------------------------------------------------
2752 dnl CF_NCURSES_CC_CHECK version: 5 updated: 2020/12/31 20:19:42
2753 dnl -------------------
2754 dnl Check if we can compile with ncurses' header file
2755 dnl $1 is the cache variable to set
2756 dnl $2 is the header-file to include
2757 dnl $3 is the root name (ncurses or ncursesw)
2758 AC_DEFUN([CF_NCURSES_CC_CHECK],[
2760 ]ifelse($3,ncursesw,[
2761 #define _XOPEN_SOURCE_EXTENDED
2762 #undef HAVE_LIBUTF8_H /* in case we used CF_UTF8_LIB */
2763 #define HAVE_LIBUTF8_H /* to force ncurses' header file to use cchar_t */
2766 #ifdef NCURSES_VERSION
2767 ]ifelse($3,ncursesw,[
2772 printf("%s\\n", NCURSES_VERSION);
2784 dnl ---------------------------------------------------------------------------
2785 dnl CF_NCURSES_CONFIG version: 26 updated: 2021/01/03 08:05:37
2786 dnl -----------------
2787 dnl Tie together the configure-script macros for ncurses, preferring these in
2789 dnl a) ".pc" files for pkg-config, using $NCURSES_CONFIG_PKG
2790 dnl b) the "-config" script from ncurses, using $NCURSES_CONFIG
2791 dnl c) just plain libraries
2793 dnl $1 is the root library name (default: "ncurses")
2794 AC_DEFUN([CF_NCURSES_CONFIG],[
2795 AC_REQUIRE([CF_PKG_CONFIG])
2796 cf_ncuconfig_root=ifelse($1,,ncurses,$1)
2797 cf_have_ncuconfig=no
2799 if test "x${PKG_CONFIG:=none}" != xnone; then
2800 AC_MSG_CHECKING(pkg-config for $cf_ncuconfig_root)
2801 if "$PKG_CONFIG" --exists $cf_ncuconfig_root ; then
2804 AC_MSG_CHECKING(if the $cf_ncuconfig_root package files work)
2805 cf_have_ncuconfig=unknown
2807 cf_save_CFLAGS="$CFLAGS"
2808 cf_save_CPPFLAGS="$CPPFLAGS"
2809 cf_save_LIBS="$LIBS"
2811 cf_pkg_cflags="`$PKG_CONFIG --cflags $cf_ncuconfig_root`"
2812 cf_pkg_libs="`$PKG_CONFIG --libs $cf_ncuconfig_root`"
2814 # while -W for passing linker flags is prevalent, it is not "standard".
2815 # At least one wrapper for c89/c99 (in Apple's xcode) has its own
2816 # incompatible _and_ non-standard -W option which gives an error. Work
2817 # around that pitfall.
2818 case "x${CC}@@${cf_pkg_libs}@${cf_pkg_cflags}" in
2820 CF_ADD_CFLAGS($cf_pkg_cflags)
2821 CF_ADD_LIBS($cf_pkg_libs)
2823 AC_TRY_LINK([#include <${cf_cv_ncurses_header:-curses.h}>],
2824 [initscr(); mousemask(0,0); tigetstr((char *)0);],
2825 [AC_TRY_RUN([#include <${cf_cv_ncurses_header:-curses.h}>
2827 { char *xx = curses_version(); return (xx == 0); }],
2828 [cf_test_ncuconfig=yes],
2829 [cf_test_ncuconfig=no],
2830 [cf_test_ncuconfig=maybe])],
2831 [cf_test_ncuconfig=no])
2833 CFLAGS="$cf_save_CFLAGS"
2834 CPPFLAGS="$cf_save_CPPFLAGS"
2835 LIBS="$cf_save_LIBS"
2837 if test "x$cf_test_ncuconfig" != xyes; then
2838 cf_temp=`echo "x$cf_pkg_cflags" | sed -e s/^x// -e 's/-W[[^ ]]*//g'`
2839 cf_pkg_cflags="$cf_temp"
2840 cf_temp=`echo "x$cf_pkg_libs" | sed -e s/^x// -e 's/-W[[^ ]]*//g'`
2841 cf_pkg_libs="$cf_temp"
2846 CF_ADD_CFLAGS($cf_pkg_cflags)
2847 CF_ADD_LIBS($cf_pkg_libs)
2849 AC_TRY_LINK([#include <${cf_cv_ncurses_header:-curses.h}>],
2850 [initscr(); mousemask(0,0); tigetstr((char *)0);],
2851 [AC_TRY_RUN([#include <${cf_cv_ncurses_header:-curses.h}>
2853 { char *xx = curses_version(); return (xx == 0); }],
2854 [cf_have_ncuconfig=yes],
2855 [cf_have_ncuconfig=no],
2856 [cf_have_ncuconfig=maybe])],
2857 [cf_have_ncuconfig=no])
2858 AC_MSG_RESULT($cf_have_ncuconfig)
2859 test "$cf_have_ncuconfig" = maybe && cf_have_ncuconfig=yes
2860 if test "$cf_have_ncuconfig" != "yes"
2862 CPPFLAGS="$cf_save_CPPFLAGS"
2863 LIBS="$cf_save_LIBS"
2864 NCURSES_CONFIG_PKG=none
2866 AC_DEFINE(NCURSES,1,[Define to 1 if we are using ncurses headers/libraries])
2867 NCURSES_CONFIG_PKG=$cf_ncuconfig_root
2873 NCURSES_CONFIG_PKG=none
2876 NCURSES_CONFIG_PKG=none
2879 if test "x$cf_have_ncuconfig" = "xno"; then
2880 cf_ncurses_config="${cf_ncuconfig_root}${NCURSES_CONFIG_SUFFIX}-config"; echo "Looking for ${cf_ncurses_config}"
2882 CF_ACVERSION_CHECK(2.52,
2883 [AC_CHECK_TOOLS(NCURSES_CONFIG, ${cf_ncurses_config} ${cf_ncuconfig_root}6-config ${cf_ncuconfig_root}6-config ${cf_ncuconfig_root}5-config, none)],
2884 [AC_PATH_PROGS(NCURSES_CONFIG, ${cf_ncurses_config} ${cf_ncuconfig_root}6-config ${cf_ncuconfig_root}6-config ${cf_ncuconfig_root}5-config, none)])
2886 if test "$NCURSES_CONFIG" != none ; then
2888 CF_ADD_CFLAGS(`$NCURSES_CONFIG --cflags`)
2889 CF_ADD_LIBS(`$NCURSES_CONFIG --libs`)
2891 # even with config script, some packages use no-override for curses.h
2892 CF_CURSES_HEADER(ifelse($1,,ncurses,$1))
2894 dnl like CF_NCURSES_CPPFLAGS
2895 AC_DEFINE(NCURSES,1,[Define to 1 if we are using ncurses headers/libraries])
2897 dnl like CF_NCURSES_LIBS
2898 CF_UPPER(cf_nculib_ROOT,HAVE_LIB$cf_ncuconfig_root)
2899 AC_DEFINE_UNQUOTED($cf_nculib_ROOT)
2901 dnl like CF_NCURSES_VERSION
2902 cf_cv_ncurses_version="`$NCURSES_CONFIG --version`"
2906 CF_NCURSES_CPPFLAGS(ifelse($1,,ncurses,$1))
2907 CF_NCURSES_LIBS(ifelse($1,,ncurses,$1))
2914 dnl ---------------------------------------------------------------------------
2915 dnl CF_NCURSES_CPPFLAGS version: 22 updated: 2021/01/02 09:31:20
2916 dnl -------------------
2917 dnl Look for the SVr4 curses clone 'ncurses' in the standard places, adjusting
2918 dnl the CPPFLAGS variable so we can include its header.
2920 dnl The header files may be installed as either curses.h, or ncurses.h (would
2921 dnl be obsolete, except that some packagers prefer this name to distinguish it
2922 dnl from a "native" curses implementation). If not installed for overwrite,
2923 dnl the curses.h file would be in an ncurses subdirectory (e.g.,
2924 dnl /usr/include/ncurses), but someone may have installed overwriting the
2925 dnl vendor's curses. Only very old versions (pre-1.9.2d, the first autoconf'd
2926 dnl version) of ncurses don't define either __NCURSES_H or NCURSES_VERSION in
2929 dnl If the installer has set $CFLAGS or $CPPFLAGS so that the ncurses header
2930 dnl is already in the include-path, don't even bother with this, since we cannot
2931 dnl easily determine which file it is. In this case, it has to be <curses.h>.
2933 dnl The optional parameter gives the root name of the library, in case it is
2934 dnl not installed as the default curses library. That is how the
2935 dnl wide-character version of ncurses is installed.
2936 AC_DEFUN([CF_NCURSES_CPPFLAGS],
2937 [AC_REQUIRE([CF_WITH_CURSES_DIR])
2939 AC_PROVIDE([CF_CURSES_CPPFLAGS])dnl
2940 cf_ncuhdr_root=ifelse($1,,ncurses,$1)
2942 test -n "$cf_cv_curses_dir" && \
2943 test "$cf_cv_curses_dir" != "no" && { \
2944 CF_ADD_INCDIR($cf_cv_curses_dir/include/$cf_ncuhdr_root)
2947 AC_CACHE_CHECK(for $cf_ncuhdr_root header in include-path, cf_cv_ncurses_h,[
2948 cf_header_list="$cf_ncuhdr_root/curses.h $cf_ncuhdr_root/ncurses.h"
2949 { test "$cf_ncuhdr_root" = ncurses || test "$cf_ncuhdr_root" = ncursesw; } && cf_header_list="$cf_header_list curses.h ncurses.h"
2950 for cf_header in $cf_header_list
2952 CF_NCURSES_CC_CHECK(cf_cv_ncurses_h,$cf_header,$1)
2953 test "$cf_cv_ncurses_h" != no && break
2960 # some applications need this, but should check for NCURSES_VERSION
2961 AC_DEFINE(NCURSES,1,[Define to 1 if we are using ncurses headers/libraries])
2965 dnl ---------------------------------------------------------------------------
2966 dnl CF_NCURSES_HEADER version: 7 updated: 2021/01/04 19:33:05
2967 dnl -----------------
2968 dnl Find a "curses" header file, e.g,. "curses.h", or one of the more common
2969 dnl variations of ncurses' installs.
2971 dnl See also CF_CURSES_HEADER, which sets the same cache variable.
2972 AC_DEFUN([CF_NCURSES_HEADER],[
2974 if test "$cf_cv_ncurses_h" != no ; then
2975 cf_cv_ncurses_header=$cf_cv_ncurses_h
2978 AC_CACHE_CHECK(for $cf_ncuhdr_root include-path, cf_cv_ncurses_h2,[
2979 test -n "$verbose" && echo
2980 CF_HEADER_PATH(cf_search,$cf_ncuhdr_root)
2981 test -n "$verbose" && echo "search path $cf_search"
2982 cf_save2_CPPFLAGS="$CPPFLAGS"
2983 for cf_incdir in $cf_search
2985 CF_ADD_INCDIR($cf_incdir)
2990 CF_NCURSES_CC_CHECK(cf_cv_ncurses_h2,$cf_header,$1)
2991 if test "$cf_cv_ncurses_h2" != no ; then
2992 cf_cv_ncurses_h2=$cf_incdir/$cf_header
2993 test -n "$verbose" && echo $ECHO_N " ... found $ECHO_C" 1>&AC_FD_MSG
2996 test -n "$verbose" && echo " ... tested $cf_incdir/$cf_header" 1>&AC_FD_MSG
2998 CPPFLAGS="$cf_save2_CPPFLAGS"
2999 test "$cf_cv_ncurses_h2" != no && break
3001 test "$cf_cv_ncurses_h2" = no && AC_MSG_ERROR(not found)
3004 CF_DIRNAME(cf_1st_incdir,$cf_cv_ncurses_h2)
3005 cf_cv_ncurses_header="`basename "$cf_cv_ncurses_h2"`"
3006 if test "`basename "$cf_1st_incdir"`" = "$cf_ncuhdr_root" ; then
3007 cf_cv_ncurses_header="$cf_ncuhdr_root/$cf_cv_ncurses_header"
3009 CF_ADD_INCDIR($cf_1st_incdir)
3013 # Set definitions to allow ifdef'ing for ncurses.h
3015 case "$cf_cv_ncurses_header" in
3017 AC_DEFINE(HAVE_NCURSES_H,1,[Define to 1 if we have ncurses.h])
3021 case "$cf_cv_ncurses_header" in
3022 (ncurses/curses.h|ncurses/ncurses.h)
3023 AC_DEFINE(HAVE_NCURSES_NCURSES_H,1,[Define to 1 if we have ncurses/ncurses.h])
3025 (ncursesw/curses.h|ncursesw/ncurses.h)
3026 AC_DEFINE(HAVE_NCURSESW_NCURSES_H,1,[Define to 1 if we have ncursesw/ncurses.h])
3031 dnl ---------------------------------------------------------------------------
3032 dnl CF_NCURSES_LIBS version: 20 updated: 2021/01/03 08:05:37
3034 dnl Look for the ncurses library. This is a little complicated on Linux,
3035 dnl because it may be linked with the gpm (general purpose mouse) library.
3036 dnl Some distributions have gpm linked with (bsd) curses, which makes it
3037 dnl unusable with ncurses. However, we don't want to link with gpm unless
3038 dnl ncurses has a dependency, since gpm is normally set up as a shared library,
3039 dnl and the linker will record a dependency.
3041 dnl The optional parameter gives the root name of the library, in case it is
3042 dnl not installed as the default curses library. That is how the
3043 dnl wide-character version of ncurses is installed.
3044 AC_DEFUN([CF_NCURSES_LIBS],
3045 [AC_REQUIRE([CF_NCURSES_CPPFLAGS])
3047 cf_nculib_root=ifelse($1,,ncurses,$1)
3048 # This works, except for the special case where we find gpm, but
3049 # ncurses is in a nonstandard location via $LIBS, and we really want
3052 cf_ncurses_SAVE="$LIBS"
3053 AC_CHECK_LIB(gpm,Gpm_Open,
3054 [AC_CHECK_LIB(gpm,initscr,
3055 [LIBS="$cf_ncurses_SAVE"],
3056 [cf_ncurses_LIBS="-lgpm"])])
3060 # This is only necessary if you are linking against an obsolete
3061 # version of ncurses (but it should do no harm, since it's static).
3062 if test "$cf_nculib_root" = ncurses ; then
3063 AC_CHECK_LIB(mytinfo,tgoto,[cf_ncurses_LIBS="-lmytinfo $cf_ncurses_LIBS"])
3068 CF_ADD_LIBS($cf_ncurses_LIBS)
3070 if test -n "$cf_cv_curses_dir" && test "$cf_cv_curses_dir" != "no"
3072 CF_ADD_LIBS(-l$cf_nculib_root)
3074 CF_FIND_LIBRARY($cf_nculib_root,$cf_nculib_root,
3075 [#include <${cf_cv_ncurses_header:-curses.h}>],
3080 if test -n "$cf_ncurses_LIBS" ; then
3081 AC_MSG_CHECKING(if we can link $cf_nculib_root without $cf_ncurses_LIBS)
3082 cf_ncurses_SAVE="$LIBS"
3083 for p in $cf_ncurses_LIBS ; do
3084 q=`echo "$LIBS" | sed -e "s%$p %%" -e "s%$p$%%"`
3085 if test "$q" != "$LIBS" ; then
3089 AC_TRY_LINK([#include <${cf_cv_ncurses_header:-curses.h}>],
3090 [initscr(); mousemask(0,0); tigetstr((char *)0);],
3091 [AC_MSG_RESULT(yes)],
3093 LIBS="$cf_ncurses_SAVE"])
3096 CF_UPPER(cf_nculib_ROOT,HAVE_LIB$cf_nculib_root)
3097 AC_DEFINE_UNQUOTED($cf_nculib_ROOT)
3099 dnl ---------------------------------------------------------------------------
3100 dnl CF_NCURSES_VERSION version: 16 updated: 2020/12/31 20:19:42
3101 dnl ------------------
3102 dnl Check for the version of ncurses, to aid in reporting bugs, etc.
3103 dnl Call CF_CURSES_CPPFLAGS first, or CF_NCURSES_CPPFLAGS. We don't use
3104 dnl AC_REQUIRE since that does not work with the shell's if/then/else/fi.
3105 AC_DEFUN([CF_NCURSES_VERSION],
3107 AC_REQUIRE([CF_CURSES_CPPFLAGS])dnl
3108 AC_CACHE_CHECK(for ncurses version, cf_cv_ncurses_version,[
3109 cf_cv_ncurses_version=no
3111 rm -f "$cf_tempfile"
3113 #include <${cf_cv_ncurses_header:-curses.h}>
3117 FILE *fp = fopen("$cf_tempfile", "w");
3118 #ifdef NCURSES_VERSION
3119 # ifdef NCURSES_VERSION_PATCH
3120 fprintf(fp, "%s.%d\\n", NCURSES_VERSION, NCURSES_VERSION_PATCH);
3122 fprintf(fp, "%s\\n", NCURSES_VERSION);
3126 fprintf(fp, "old\\n");
3131 ${cf_cv_main_return:-return}(0);
3133 cf_cv_ncurses_version=`cat $cf_tempfile`],,[
3135 # This will not work if the preprocessor splits the line after the
3136 # Autoconf token. The 'unproto' program does that.
3137 cat > "conftest.$ac_ext" <<EOF
3138 #include <${cf_cv_ncurses_header:-curses.h}>
3140 #ifdef NCURSES_VERSION
3141 Autoconf NCURSES_VERSION
3149 cf_try="$ac_cpp conftest.$ac_ext 2>&AC_FD_CC | grep '^Autoconf ' >conftest.out"
3151 if test -f conftest.out ; then
3152 cf_out=`sed -e 's%^Autoconf %%' -e 's%^[[^"]]*"%%' -e 's%".*%%' conftest.out`
3153 test -n "$cf_out" && cf_cv_ncurses_version="$cf_out"
3157 rm -f "$cf_tempfile"
3159 test "$cf_cv_ncurses_version" = no || AC_DEFINE(NCURSES,1,[Define to 1 if we are using ncurses headers/libraries])
3161 dnl ---------------------------------------------------------------------------
3162 dnl CF_OBJ_SUBDIR version: 8 updated: 2021/01/01 13:31:04
3164 dnl Compute the object-directory name from the given model name
3165 AC_DEFUN([CF_OBJ_SUBDIR],
3168 (libtool) $2='obj_lo' ;;
3169 (normal) $2='objects' ;;
3170 (debug) $2='obj_g' ;;
3171 (profile) $2='obj_p' ;;
3173 case "$cf_cv_system_name" in
3181 dnl ---------------------------------------------------------------------------
3182 dnl CF_PATHSEP version: 8 updated: 2021/01/01 13:31:04
3184 dnl Provide a value for the $PATH and similar separator (or amend the value
3185 dnl as provided in autoconf 2.5x).
3186 AC_DEFUN([CF_PATHSEP],
3188 AC_MSG_CHECKING(for PATH separator)
3189 case "$cf_cv_system_name" in
3190 (os2*) PATH_SEPARATOR=';' ;;
3191 (*) ${PATH_SEPARATOR:=':'} ;;
3193 ifelse([$1],,,[$1=$PATH_SEPARATOR])
3194 AC_SUBST(PATH_SEPARATOR)
3195 AC_MSG_RESULT($PATH_SEPARATOR)
3197 dnl ---------------------------------------------------------------------------
3198 dnl CF_PATH_SYNTAX version: 18 updated: 2020/12/31 18:40:20
3200 dnl Check the argument to see that it looks like a pathname. Rewrite it if it
3201 dnl begins with one of the prefix/exec_prefix variables, and then again if the
3202 dnl result begins with 'NONE'. This is necessary to work around autoconf's
3203 dnl delayed evaluation of those symbols.
3204 AC_DEFUN([CF_PATH_SYNTAX],[
3205 if test "x$prefix" != xNONE; then
3206 cf_path_syntax="$prefix"
3208 cf_path_syntax="$ac_default_prefix"
3212 (.\[$]\(*\)*|.\'*\'*)
3216 (.[[a-zA-Z]]:[[\\/]]*) # OS/2 EMX
3218 (.\[$]\{*prefix\}*|.\[$]\{*dir\}*)
3222 $1=`echo "[$]$1" | sed -e s%NONE%$cf_path_syntax%`
3227 $1=`echo "[$]$1" | sed -e s%NONE%$cf_path_syntax%`
3230 ifelse([$2],,[AC_MSG_ERROR([expected a pathname, not \"[$]$1\"])],$2)
3234 dnl ---------------------------------------------------------------------------
3235 dnl CF_PKG_CONFIG version: 11 updated: 2021/01/01 13:31:04
3237 dnl Check for the package-config program, unless disabled by command-line.
3238 AC_DEFUN([CF_PKG_CONFIG],
3240 AC_MSG_CHECKING(if you want to use pkg-config)
3241 AC_ARG_WITH(pkg-config,
3242 [ --with-pkg-config{=path} enable/disable use of pkg-config],
3243 [cf_pkg_config=$withval],
3244 [cf_pkg_config=yes])
3245 AC_MSG_RESULT($cf_pkg_config)
3247 case "$cf_pkg_config" in
3252 CF_ACVERSION_CHECK(2.52,
3253 [AC_PATH_TOOL(PKG_CONFIG, pkg-config, none)],
3254 [AC_PATH_PROG(PKG_CONFIG, pkg-config, none)])
3261 test -z "$PKG_CONFIG" && PKG_CONFIG=none
3262 if test "$PKG_CONFIG" != none ; then
3263 CF_PATH_SYNTAX(PKG_CONFIG)
3264 elif test "x$cf_pkg_config" != xno ; then
3265 AC_MSG_WARN(pkg-config is not installed)
3268 AC_SUBST(PKG_CONFIG)
3270 dnl ---------------------------------------------------------------------------
3271 dnl CF_POSIX_C_SOURCE version: 11 updated: 2018/12/31 20:46:17
3272 dnl -----------------
3273 dnl Define _POSIX_C_SOURCE to the given level, and _POSIX_SOURCE if needed.
3275 dnl POSIX.1-1990 _POSIX_SOURCE
3276 dnl POSIX.1-1990 and _POSIX_SOURCE and
3277 dnl POSIX.2-1992 C-Language _POSIX_C_SOURCE=2
3279 dnl POSIX.1b-1993 _POSIX_C_SOURCE=199309L
3280 dnl POSIX.1c-1996 _POSIX_C_SOURCE=199506L
3281 dnl X/Open 2000 _POSIX_C_SOURCE=200112L
3284 dnl $1 is the nominal value for _POSIX_C_SOURCE
3285 AC_DEFUN([CF_POSIX_C_SOURCE],
3286 [AC_REQUIRE([CF_POSIX_VISIBLE])dnl
3288 if test "$cf_cv_posix_visible" = no; then
3290 cf_POSIX_C_SOURCE=ifelse([$1],,199506L,[$1])
3292 cf_save_CFLAGS="$CFLAGS"
3293 cf_save_CPPFLAGS="$CPPFLAGS"
3295 CF_REMOVE_DEFINE(cf_trim_CFLAGS,$cf_save_CFLAGS,_POSIX_C_SOURCE)
3296 CF_REMOVE_DEFINE(cf_trim_CPPFLAGS,$cf_save_CPPFLAGS,_POSIX_C_SOURCE)
3298 AC_CACHE_CHECK(if we should define _POSIX_C_SOURCE,cf_cv_posix_c_source,[
3299 CF_MSG_LOG(if the symbol is already defined go no further)
3300 AC_TRY_COMPILE([#include <sys/types.h>],[
3301 #ifndef _POSIX_C_SOURCE
3304 [cf_cv_posix_c_source=no],
3305 [cf_want_posix_source=no
3306 case .$cf_POSIX_C_SOURCE in
3308 cf_cv_posix_c_source="-D_POSIX_C_SOURCE=$cf_POSIX_C_SOURCE"
3311 cf_cv_posix_c_source="-D_POSIX_C_SOURCE=$cf_POSIX_C_SOURCE"
3312 cf_want_posix_source=yes
3315 cf_want_posix_source=yes
3318 if test "$cf_want_posix_source" = yes ; then
3319 AC_TRY_COMPILE([#include <sys/types.h>],[
3320 #ifdef _POSIX_SOURCE
3323 cf_cv_posix_c_source="$cf_cv_posix_c_source -D_POSIX_SOURCE")
3325 CF_MSG_LOG(ifdef from value $cf_POSIX_C_SOURCE)
3326 CFLAGS="$cf_trim_CFLAGS"
3327 CPPFLAGS="$cf_trim_CPPFLAGS"
3328 CF_APPEND_TEXT(CPPFLAGS,$cf_cv_posix_c_source)
3329 CF_MSG_LOG(if the second compile does not leave our definition intact error)
3330 AC_TRY_COMPILE([#include <sys/types.h>],[
3331 #ifndef _POSIX_C_SOURCE
3334 [cf_cv_posix_c_source=no])
3335 CFLAGS="$cf_save_CFLAGS"
3336 CPPFLAGS="$cf_save_CPPFLAGS"
3340 if test "$cf_cv_posix_c_source" != no ; then
3341 CFLAGS="$cf_trim_CFLAGS"
3342 CPPFLAGS="$cf_trim_CPPFLAGS"
3343 CF_ADD_CFLAGS($cf_cv_posix_c_source)
3346 fi # cf_cv_posix_visible
3349 dnl ---------------------------------------------------------------------------
3350 dnl CF_POSIX_VISIBLE version: 1 updated: 2018/12/31 20:46:17
3351 dnl ----------------
3352 dnl POSIX documents test-macros which an application may set before any system
3353 dnl headers are included to make features available.
3355 dnl Some BSD platforms (originally FreeBSD, but copied by a few others)
3356 dnl diverged from POSIX in 2002 by setting symbols which make all of the most
3357 dnl recent features visible in the system header files unless the application
3358 dnl overrides the corresponding test-macros. Doing that introduces portability
3361 dnl This macro makes a special check for the symbols used for this, to avoid a
3362 dnl conflicting definition.
3363 AC_DEFUN([CF_POSIX_VISIBLE],
3365 AC_CACHE_CHECK(if the POSIX test-macros are already defined,cf_cv_posix_visible,[
3366 AC_TRY_COMPILE([#include <stdio.h>],[
3367 #if defined(__POSIX_VISIBLE) && ((__POSIX_VISIBLE - 0L) > 0) \
3368 && defined(__XSI_VISIBLE) && ((__XSI_VISIBLE - 0L) > 0) \
3369 && defined(__BSD_VISIBLE) && ((__BSD_VISIBLE - 0L) > 0) \
3370 && defined(__ISO_C_VISIBLE) && ((__ISO_C_VISIBLE - 0L) > 0)
3371 #error conflicting symbols found
3373 ],[cf_cv_posix_visible=no],[cf_cv_posix_visible=yes])
3376 dnl ---------------------------------------------------------------------------
3377 dnl CF_PROG_AR version: 1 updated: 2009/01/01 20:15:22
3379 dnl Check for archiver "ar".
3380 AC_DEFUN([CF_PROG_AR],[
3381 AC_CHECK_TOOL(AR, ar, ar)
3383 dnl ---------------------------------------------------------------------------
3384 dnl CF_PROG_AWK version: 1 updated: 2006/09/16 11:40:59
3386 dnl Check for awk, ensure that the check found something.
3387 AC_DEFUN([CF_PROG_AWK],
3390 test -z "$AWK" && AC_MSG_ERROR(No awk program found)
3392 dnl ---------------------------------------------------------------------------
3393 dnl CF_PROG_CC version: 5 updated: 2019/12/31 08:53:54
3395 dnl standard check for CC, plus followup sanity checks
3396 dnl $1 = optional parameter to pass to AC_PROG_CC to specify compiler name
3397 AC_DEFUN([CF_PROG_CC],[
3398 CF_ACVERSION_CHECK(2.53,
3399 [AC_MSG_WARN(this will incorrectly handle gnatgcc choice)
3400 AC_REQUIRE([AC_PROG_CC])],
3402 ifelse($1,,[AC_PROG_CC],[AC_PROG_CC($1)])
3404 CF_ACVERSION_CHECK(2.52,
3409 dnl ---------------------------------------------------------------------------
3410 dnl CF_PROG_CC_C_O version: 6 updated: 2021/01/01 13:31:04
3412 dnl Analogous to AC_PROG_CC_C_O, but more useful: tests only $CC, ensures that
3413 dnl the output file can be renamed, and allows for a shell variable that can
3414 dnl be used later. The parameter is either CC or CXX. The result is the
3416 dnl $cf_cv_prog_CC_c_o
3417 dnl $cf_cv_prog_CXX_c_o
3420 dnl $2 = compiler options, if any
3421 AC_DEFUN([CF_PROG_CC_C_O],
3422 [AC_REQUIRE([AC_PROG_CC])dnl
3423 AC_MSG_CHECKING([whether [$]$1 understands -c and -o together])
3424 AC_CACHE_VAL(cf_cv_prog_$1_c_o,
3426 cat > conftest.$ac_ext <<CF_EOF
3429 ${cf_cv_main_return:-return}(0);
3432 # We do the test twice because some compilers refuse to overwrite an
3433 # existing .o file with -o, though they will create one.
3434 ac_try='[$]$1 $2 -c conftest.$ac_ext -o conftest2.$ac_objext >&AC_FD_CC'
3435 if AC_TRY_EVAL(ac_try) &&
3436 test -f conftest2.$ac_objext && AC_TRY_EVAL(ac_try);
3438 eval cf_cv_prog_$1_c_o=yes
3440 eval cf_cv_prog_$1_c_o=no
3444 if test "$cf_cv_prog_$1_c_o" = yes; then
3445 AC_MSG_RESULT([yes])
3450 dnl ---------------------------------------------------------------------------
3451 dnl CF_PROG_EGREP version: 2 updated: 2015/04/18 08:56:57
3453 dnl AC_PROG_EGREP was introduced in autoconf 2.53.
3454 dnl This macro adds a check to ensure the script found something.
3455 AC_DEFUN([CF_PROG_EGREP],
3456 [AC_CACHE_CHECK([for egrep], [ac_cv_prog_egrep],
3457 [if echo a | (grep -E '(a|b)') >/dev/null 2>&1
3458 then ac_cv_prog_egrep='grep -E'
3459 else ac_cv_prog_egrep='egrep'
3461 EGREP=$ac_cv_prog_egrep
3463 test -z "$EGREP" && AC_MSG_ERROR(No egrep program found)
3465 dnl ---------------------------------------------------------------------------
3466 dnl CF_PROG_EXT version: 15 updated: 2021/01/02 09:31:20
3468 dnl Compute $PROG_EXT, used for non-Unix ports, such as OS/2 EMX.
3469 AC_DEFUN([CF_PROG_EXT],
3471 AC_REQUIRE([CF_CHECK_CACHE])
3472 case "$cf_cv_system_name" in
3474 CFLAGS="$CFLAGS -Zmt"
3475 CF_APPEND_TEXT(CPPFLAGS,-D__ST_MT_ERRNO__)
3476 CXXFLAGS="$CXXFLAGS -Zmt"
3477 # autoconf's macro sets -Zexe and suffix both, which conflict:w
3478 LDFLAGS="$LDFLAGS -Zmt -Zcrtdll"
3488 test -n "$PROG_EXT" && AC_DEFINE_UNQUOTED(PROG_EXT,"$PROG_EXT",[Define to the program extension (normally blank)])
3490 dnl ---------------------------------------------------------------------------
3491 dnl CF_PROG_GNAT version: 12 updated: 2021/01/02 17:09:14
3493 dnl Check for gnat/gnatmake/etc, ensure that the toolset is complete.
3494 AC_DEFUN([CF_PROG_GNAT],[
3495 for cf_prog_gnat in gnat gnatmake gprconfig gprbuild
3497 CF_UPPER(cf_upper_prog_gnat,${cf_prog_gnat})
3499 unset ac_cv_path_cf_TEMP_gnat
3501 AC_PATH_PROG(cf_TEMP_gnat,$cf_prog_gnat,no)
3502 eval "cf_cv_PATH_$cf_upper_prog_gnat=[$]ac_cv_path_cf_TEMP_gnat"
3504 if test "x$cf_TEMP_gnat" != xno; then
3505 unset cf_cv_gnat_version
3507 CF_GNAT_VERSION(cf_TEMP_gnat,$cf_prog_gnat)
3509 eval "cf_cv_VERSION_$cf_upper_prog_gnat=[$]cf_TEMP_gnat"
3512 unset cf_cv_gnat_version
3513 unset ac_cv_path_cf_TEMP_gnat
3516 if test "x$cf_cv_VERSION_GNATMAKE" = "xno"; then
3518 cf_cv_prog_gnat_correct=no
3520 cf_ada_make=gnatmake
3521 if test "x$cf_cv_VERSION_GPRCONFIG" = "xno"; then
3522 # gprconfig is newer than gnatmake; we can continue...
3525 rm -rf ./conftest* ./*~conftest*
3526 if mkdir conftest.src
3530 for cf_gprconfig in Ada C
3532 AC_MSG_CHECKING(for gprconfig name for $cf_gprconfig)
3533 if test "$cf_gprconfig" = C
3535 for cf_gprconfig_param in \
3536 "$cf_gprconfig,,,,GNATGCC" \
3537 "$cf_gprconfig,,,,GCC" \
3540 cf_gprconfig_value=`echo s| gprconfig --config=$cf_gprconfig_param 2>&AC_FD_CC | ${AWK:-awk} '/^\*/{print [$]3;}' | head -n 1`
3541 test -n "$cf_gprconfig_value" && break
3544 cf_gprconfig_param=$cf_gprconfig
3545 cf_gprconfig_value=`echo s| gprconfig --config=$cf_gprconfig_param 2>&AC_FD_CC | ${AWK:-awk} '/^\*/{print [$]3;}' | head -n 1`
3547 if test -n "$cf_gprconfig_value"
3549 eval "cf_ada_config_[$]cf_gprconfig=[$]cf_gprconfig_value"
3550 AC_MSG_RESULT($cf_gprconfig_value)
3552 AC_MSG_RESULT(missing)
3558 rm -rf ./conftest* ./*~conftest*
3561 if test "x$cf_ada_config" != "x#"
3564 CF_CHECK_GNAT_VERSION
3565 AC_CHECK_PROG(M4_exists, m4, yes, no)
3566 if test "$ac_cv_prog_M4_exists" = no; then
3567 cf_cv_prog_gnat_correct=no
3568 AC_MSG_WARN(Ada95 binding required program m4 not found. Ada95 binding disabled)
3570 if test "$cf_cv_prog_gnat_correct" = yes; then
3571 AC_MSG_CHECKING(if GNAT works)
3572 CF_GNAT_TRY_RUN([procedure conftest;],
3575 procedure conftest is
3577 Text_IO.Put ("Hello World");
3579 GNAT.OS_Lib.OS_Exit (0);
3581 [cf_cv_prog_gnat_correct=yes],
3582 [cf_cv_prog_gnat_correct=no])
3583 AC_MSG_RESULT($cf_cv_prog_gnat_correct)
3586 cf_cv_prog_gnat_correct=no
3590 AC_SUBST(cf_ada_make)
3591 AC_SUBST(cf_ada_config)
3592 AC_SUBST(cf_ada_config_Ada)
3593 AC_SUBST(cf_ada_config_C)
3595 dnl ---------------------------------------------------------------------------
3596 dnl CF_PROG_INSTALL version: 10 updated: 2021/01/04 19:33:05
3598 dnl Force $INSTALL to be an absolute-path. Otherwise, edit_man.sh and the
3599 dnl misc/tabset install won't work properly. Usually this happens only when
3600 dnl using the fallback mkinstalldirs script
3601 AC_DEFUN([CF_PROG_INSTALL],
3607 CF_DIRNAME(cf_dir,$INSTALL)
3608 test -z "$cf_dir" && cf_dir=.