1 dnl***************************************************************************
2 dnl Copyright (c) 2010-2012,2013 Free Software Foundation, Inc. *
4 dnl Permission is hereby granted, free of charge, to any person obtaining a *
5 dnl copy of this software and associated documentation files (the *
6 dnl "Software"), to deal in the Software without restriction, including *
7 dnl without limitation the rights to use, copy, modify, merge, publish, *
8 dnl distribute, distribute with modifications, sublicense, and/or sell *
9 dnl copies of the Software, and to permit persons to whom the Software is *
10 dnl furnished to do so, subject to the following conditions: *
12 dnl The above copyright notice and this permission notice shall be included *
13 dnl in all copies or substantial portions of the Software. *
15 dnl THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
16 dnl OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
17 dnl MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
18 dnl IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
19 dnl DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
20 dnl OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
21 dnl THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
23 dnl Except as contained in this notice, the name(s) of the above copyright *
24 dnl holders shall not be used in advertising or otherwise to promote the *
25 dnl sale, use or other dealings in this Software without prior written *
27 dnl***************************************************************************
29 dnl Author: Thomas E. Dickey
31 dnl $Id: aclocal.m4,v 1.64 2013/01/26 22:15:40 tom Exp $
32 dnl Macros used in NCURSES Ada95 auto-configuration script.
34 dnl These macros are maintained separately from NCURSES. The copyright on
35 dnl this file applies to the aggregation of macros and does not affect use of
36 dnl these macros in other applications.
38 dnl See http://invisible-island.net/autoconf/ for additional information.
40 dnl ---------------------------------------------------------------------------
41 dnl ---------------------------------------------------------------------------
42 dnl CF_ACVERSION_CHECK version: 3 updated: 2012/10/03 18:39:53
43 dnl ------------------
44 dnl Conditionally generate script according to whether we're using a given autoconf.
46 dnl $1 = version to compare against
47 dnl $2 = code to use if AC_ACVERSION is at least as high as $1.
48 dnl $3 = code to use if AC_ACVERSION is older than $1.
49 define([CF_ACVERSION_CHECK],
51 ifdef([m4_version_compare],
52 [m4_if(m4_version_compare(m4_defn([AC_ACVERSION]), [$1]), -1, [$3], [$2])],
53 [CF_ACVERSION_COMPARE(
54 AC_PREREQ_CANON(AC_PREREQ_SPLIT([$1])),
55 AC_PREREQ_CANON(AC_PREREQ_SPLIT(AC_ACVERSION)), AC_ACVERSION, [$2], [$3])])])dnl
56 dnl ---------------------------------------------------------------------------
57 dnl CF_ACVERSION_COMPARE version: 3 updated: 2012/10/03 18:39:53
58 dnl --------------------
59 dnl CF_ACVERSION_COMPARE(MAJOR1, MINOR1, TERNARY1,
60 dnl MAJOR2, MINOR2, TERNARY2,
61 dnl PRINTABLE2, not FOUND, FOUND)
62 define([CF_ACVERSION_COMPARE],
63 [ifelse(builtin([eval], [$2 < $5]), 1,
64 [ifelse([$8], , ,[$8])],
65 [ifelse([$9], , ,[$9])])])dnl
66 dnl ---------------------------------------------------------------------------
67 dnl CF_ADA_INCLUDE_DIRS version: 6 updated: 2010/02/26 19:52:07
68 dnl -------------------
69 dnl Construct the list of include-options for the C programs in the Ada95
71 AC_DEFUN([CF_ADA_INCLUDE_DIRS],
73 ACPPFLAGS="-I. -I../include -I../../include $ACPPFLAGS"
74 if test "$srcdir" != "."; then
75 ACPPFLAGS="-I\${srcdir}/../../include $ACPPFLAGS"
77 if test "$GCC" != yes; then
78 ACPPFLAGS="$ACPPFLAGS -I\${includedir}"
79 elif test "$includedir" != "/usr/include"; then
80 if test "$includedir" = '${prefix}/include' ; then
81 if test $prefix != /usr ; then
82 ACPPFLAGS="$ACPPFLAGS -I\${includedir}"
85 ACPPFLAGS="$ACPPFLAGS -I\${includedir}"
90 dnl ---------------------------------------------------------------------------
91 dnl CF_ADD_ADAFLAGS version: 1 updated: 2010/06/19 15:22:18
93 dnl Add to $ADAFLAGS, which is substituted into makefile and scripts.
94 AC_DEFUN([CF_ADD_ADAFLAGS],[
95 ADAFLAGS="$ADAFLAGS $1"
98 dnl ---------------------------------------------------------------------------
99 dnl CF_ADD_CFLAGS version: 10 updated: 2010/05/26 05:38:42
101 dnl Copy non-preprocessor flags to $CFLAGS, preprocessor flags to $CPPFLAGS
102 dnl The second parameter if given makes this macro verbose.
104 dnl Put any preprocessor definitions that use quoted strings in $EXTRA_CPPFLAGS,
105 dnl to simplify use of $CPPFLAGS in compiler checks, etc., that are easily
106 dnl confused by the quotes (which require backslashes to keep them usable).
107 AC_DEFUN([CF_ADD_CFLAGS],
112 cf_new_extra_cppflags=
114 for cf_add_cflags in $1
116 case $cf_fix_cppflags in
118 case $cf_add_cflags in #(vi
119 -undef|-nostdinc*|-I*|-D*|-U*|-E|-P|-C) #(vi
120 case $cf_add_cflags in
122 cf_tst_cflags=`echo ${cf_add_cflags} |sed -e 's/^-D[[^=]]*='\''\"[[^"]]*//'`
124 test "${cf_add_cflags}" != "${cf_tst_cflags}" \
125 && test -z "${cf_tst_cflags}" \
126 && cf_fix_cppflags=yes
128 if test $cf_fix_cppflags = yes ; then
129 cf_new_extra_cppflags="$cf_new_extra_cppflags $cf_add_cflags"
131 elif test "${cf_tst_cflags}" = "\"'" ; then
132 cf_new_extra_cppflags="$cf_new_extra_cppflags $cf_add_cflags"
138 *$cf_add_cflags) #(vi
141 case $cf_add_cflags in #(vi
143 cf_tst_cppflags=`echo "x$cf_add_cflags" | sed -e 's/^...//' -e 's/=.*//'`
144 CF_REMOVE_DEFINE(CPPFLAGS,$CPPFLAGS,$cf_tst_cppflags)
147 cf_new_cppflags="$cf_new_cppflags $cf_add_cflags"
152 cf_new_cflags="$cf_new_cflags $cf_add_cflags"
157 cf_new_extra_cppflags="$cf_new_extra_cppflags $cf_add_cflags"
159 cf_tst_cflags=`echo ${cf_add_cflags} |sed -e 's/^[[^"]]*"'\''//'`
161 test "${cf_add_cflags}" != "${cf_tst_cflags}" \
162 && test -z "${cf_tst_cflags}" \
163 && cf_fix_cppflags=no
168 if test -n "$cf_new_cflags" ; then
169 ifelse([$2],,,[CF_VERBOSE(add to \$CFLAGS $cf_new_cflags)])
170 CFLAGS="$CFLAGS $cf_new_cflags"
173 if test -n "$cf_new_cppflags" ; then
174 ifelse([$2],,,[CF_VERBOSE(add to \$CPPFLAGS $cf_new_cppflags)])
175 CPPFLAGS="$CPPFLAGS $cf_new_cppflags"
178 if test -n "$cf_new_extra_cppflags" ; then
179 ifelse([$2],,,[CF_VERBOSE(add to \$EXTRA_CPPFLAGS $cf_new_extra_cppflags)])
180 EXTRA_CPPFLAGS="$cf_new_extra_cppflags $EXTRA_CPPFLAGS"
183 AC_SUBST(EXTRA_CPPFLAGS)
186 dnl ---------------------------------------------------------------------------
187 dnl CF_ADD_INCDIR version: 13 updated: 2010/05/26 16:44:57
189 dnl Add an include-directory to $CPPFLAGS. Don't add /usr/include, since it's
190 dnl redundant. We don't normally need to add -I/usr/local/include for gcc,
191 dnl but old versions (and some misinstalled ones) need that. To make things
192 dnl worse, gcc 3.x may give error messages if -I/usr/local/include is added to
193 dnl the include-path).
194 AC_DEFUN([CF_ADD_INCDIR],
196 if test -n "$1" ; then
197 for cf_add_incdir in $1
199 while test $cf_add_incdir != /usr/include
201 if test -d $cf_add_incdir
204 if test -n "$CFLAGS$CPPFLAGS" ; then
205 # a loop is needed to ensure we can add subdirs of existing dirs
206 for cf_test_incdir in $CFLAGS $CPPFLAGS ; do
207 if test ".$cf_test_incdir" = ".-I$cf_add_incdir" ; then
208 cf_have_incdir=yes; break
213 if test "$cf_have_incdir" = no ; then
214 if test "$cf_add_incdir" = /usr/local/include ; then
217 cf_save_CPPFLAGS=$CPPFLAGS
218 CPPFLAGS="$CPPFLAGS -I$cf_add_incdir"
219 AC_TRY_COMPILE([#include <stdio.h>],
222 [cf_have_incdir=yes])
223 CPPFLAGS=$cf_save_CPPFLAGS
228 if test "$cf_have_incdir" = no ; then
229 CF_VERBOSE(adding $cf_add_incdir to include-path)
230 ifelse([$2],,CPPFLAGS,[$2])="$ifelse([$2],,CPPFLAGS,[$2]) -I$cf_add_incdir"
232 cf_top_incdir=`echo $cf_add_incdir | sed -e 's%/include/.*$%/include%'`
233 test "$cf_top_incdir" = "$cf_add_incdir" && break
234 cf_add_incdir="$cf_top_incdir"
243 dnl ---------------------------------------------------------------------------
244 dnl CF_ADD_LIB version: 2 updated: 2010/06/02 05:03:05
246 dnl Add a library, used to enforce consistency.
248 dnl $1 = library to add, without the "-l"
249 dnl $2 = variable to update (default $LIBS)
250 AC_DEFUN([CF_ADD_LIB],[CF_ADD_LIBS(-l$1,ifelse($2,,LIBS,[$2]))])dnl
251 dnl ---------------------------------------------------------------------------
252 dnl CF_ADD_LIBDIR version: 9 updated: 2010/05/26 16:44:57
254 dnl Adds to the library-path
256 dnl Some machines have trouble with multiple -L options.
258 dnl $1 is the (list of) directory(s) to add
259 dnl $2 is the optional name of the variable to update (default LDFLAGS)
261 AC_DEFUN([CF_ADD_LIBDIR],
263 if test -n "$1" ; then
264 for cf_add_libdir in $1
266 if test $cf_add_libdir = /usr/lib ; then
268 elif test -d $cf_add_libdir
271 if test -n "$LDFLAGS$LIBS" ; then
272 # a loop is needed to ensure we can add subdirs of existing dirs
273 for cf_test_libdir in $LDFLAGS $LIBS ; do
274 if test ".$cf_test_libdir" = ".-L$cf_add_libdir" ; then
275 cf_have_libdir=yes; break
279 if test "$cf_have_libdir" = no ; then
280 CF_VERBOSE(adding $cf_add_libdir to library-path)
281 ifelse([$2],,LDFLAGS,[$2])="-L$cf_add_libdir $ifelse([$2],,LDFLAGS,[$2])"
287 dnl ---------------------------------------------------------------------------
288 dnl CF_ADD_LIBS version: 1 updated: 2010/06/02 05:03:05
290 dnl Add one or more libraries, used to enforce consistency.
292 dnl $1 = libraries to add, with the "-l", etc.
293 dnl $2 = variable to update (default $LIBS)
294 AC_DEFUN([CF_ADD_LIBS],[ifelse($2,,LIBS,[$2])="$1 [$]ifelse($2,,LIBS,[$2])"])dnl
295 dnl ---------------------------------------------------------------------------
296 dnl CF_ADD_SUBDIR_PATH version: 3 updated: 2010/07/03 20:58:12
297 dnl ------------------
298 dnl Append to a search-list for a nonstandard header/lib-file
299 dnl $1 = the variable to return as result
300 dnl $2 = the package name
301 dnl $3 = the subdirectory, e.g., bin, include or lib
302 dnl $4 = the directory under which we will test for subdirectories
303 dnl $5 = a directory that we do not want $4 to match
304 AC_DEFUN([CF_ADD_SUBDIR_PATH],
306 test "$4" != "$5" && \
308 ifelse([$5],NONE,,[(test $5 = NONE || test "$4" != "$5") &&]) {
309 test -n "$verbose" && echo " ... testing for $3-directories under $4"
310 test -d $4/$3 && $1="[$]$1 $4/$3"
311 test -d $4/$3/$2 && $1="[$]$1 $4/$3/$2"
312 test -d $4/$3/$2/$3 && $1="[$]$1 $4/$3/$2/$3"
313 test -d $4/$2/$3 && $1="[$]$1 $4/$2/$3"
314 test -d $4/$2/$3/$2 && $1="[$]$1 $4/$2/$3/$2"
317 dnl ---------------------------------------------------------------------------
318 dnl CF_ARG_DISABLE version: 3 updated: 1999/03/30 17:24:31
320 dnl Allow user to disable a normally-on option.
321 AC_DEFUN([CF_ARG_DISABLE],
322 [CF_ARG_OPTION($1,[$2],[$3],[$4],yes)])dnl
323 dnl ---------------------------------------------------------------------------
324 dnl CF_ARG_OPTION version: 4 updated: 2010/05/26 05:38:42
326 dnl Restricted form of AC_ARG_ENABLE that ensures user doesn't give bogus
332 dnl $3 = action to perform if option is not default
333 dnl $4 = action if perform if option is default
334 dnl $5 = default option value (either 'yes' or 'no')
335 AC_DEFUN([CF_ARG_OPTION],
336 [AC_ARG_ENABLE([$1],[$2],[test "$enableval" != ifelse([$5],no,yes,no) && enableval=ifelse([$5],no,no,yes)
337 if test "$enableval" != "$5" ; then
339 ,[ $3]) ifelse([$4],,,[
342 fi],[enableval=$5 ifelse([$4],,,[
346 dnl ---------------------------------------------------------------------------
347 dnl CF_AR_FLAGS version: 5 updated: 2010/05/20 20:24:29
349 dnl Check for suitable "ar" (archiver) options for updating an archive.
350 AC_DEFUN([CF_AR_FLAGS],[
351 AC_REQUIRE([CF_PROG_AR])
353 AC_CACHE_CHECK(for options to update archives, cf_cv_ar_flags,[
354 cf_cv_ar_flags=unknown
355 for cf_ar_flags in -curv curv -crv crv -cqv cqv -rv rv
358 # check if $ARFLAGS already contains this choice
359 if test "x$ARFLAGS" != "x" ; then
360 cf_check_ar_flags=`echo "x$ARFLAGS" | sed -e "s/$cf_ar_flags\$//" -e "s/$cf_ar_flags / /"`
361 if test "x$ARFLAGS" != "$cf_check_ar_flags" ; then
367 rm -f conftest.$ac_cv_objext
370 cat >conftest.$ac_ext <<EOF
371 #line __oline__ "configure"
372 int testdata[[3]] = { 123, 456, 789 };
374 if AC_TRY_EVAL(ac_compile) ; then
375 echo "$AR $ARFLAGS $cf_ar_flags conftest.a conftest.$ac_cv_objext" >&AC_FD_CC
376 $AR $ARFLAGS $cf_ar_flags conftest.a conftest.$ac_cv_objext 2>&AC_FD_CC 1>/dev/null
377 if test -f conftest.a ; then
378 cf_cv_ar_flags=$cf_ar_flags
382 CF_VERBOSE(cannot compile test-program)
386 rm -f conftest.a conftest.$ac_ext conftest.$ac_cv_objext
389 if test -n "$ARFLAGS" ; then
390 if test -n "$cf_cv_ar_flags" ; then
391 ARFLAGS="$ARFLAGS $cf_cv_ar_flags"
394 ARFLAGS=$cf_cv_ar_flags
399 dnl ---------------------------------------------------------------------------
400 dnl CF_BUILD_CC version: 7 updated: 2012/10/06 15:31:55
402 dnl If we're cross-compiling, allow the user to override the tools and their
403 dnl options. The configure script is oriented toward identifying the host
404 dnl compiler, etc., but we need a build compiler to generate parts of the
407 dnl $1 = default for $CPPFLAGS
408 dnl $2 = default for $LIBS
409 AC_DEFUN([CF_BUILD_CC],[
410 CF_ACVERSION_CHECK(2.52,,
411 [AC_REQUIRE([CF_PROG_EXT])])
412 if test "$cross_compiling" = yes ; then
414 # defaults that we might want to override
415 : ${BUILD_CFLAGS:=''}
416 : ${BUILD_CPPFLAGS:='ifelse([$1],,,[$1])'}
417 : ${BUILD_LDFLAGS:=''}
418 : ${BUILD_LIBS:='ifelse([$2],,,[$2])'}
419 : ${BUILD_EXEEXT:='$x'}
420 : ${BUILD_OBJEXT:='o'}
422 AC_ARG_WITH(build-cc,
423 [ --with-build-cc=XXX the build C compiler ($BUILD_CC)],
424 [BUILD_CC="$withval"],
425 [AC_CHECK_PROGS(BUILD_CC, gcc cc cl)])
426 AC_MSG_CHECKING(for native build C compiler)
427 AC_MSG_RESULT($BUILD_CC)
429 AC_MSG_CHECKING(for native build C preprocessor)
430 AC_ARG_WITH(build-cpp,
431 [ --with-build-cpp=XXX the build C preprocessor ($BUILD_CPP)],
432 [BUILD_CPP="$withval"],
433 [BUILD_CPP='${BUILD_CC} -E'])
434 AC_MSG_RESULT($BUILD_CPP)
436 AC_MSG_CHECKING(for native build C flags)
437 AC_ARG_WITH(build-cflags,
438 [ --with-build-cflags=XXX the build C compiler-flags ($BUILD_CFLAGS)],
439 [BUILD_CFLAGS="$withval"])
440 AC_MSG_RESULT($BUILD_CFLAGS)
442 AC_MSG_CHECKING(for native build C preprocessor-flags)
443 AC_ARG_WITH(build-cppflags,
444 [ --with-build-cppflags=XXX the build C preprocessor-flags ($BUILD_CPPFLAGS)],
445 [BUILD_CPPFLAGS="$withval"])
446 AC_MSG_RESULT($BUILD_CPPFLAGS)
448 AC_MSG_CHECKING(for native build linker-flags)
449 AC_ARG_WITH(build-ldflags,
450 [ --with-build-ldflags=XXX the build linker-flags ($BUILD_LDFLAGS)],
451 [BUILD_LDFLAGS="$withval"])
452 AC_MSG_RESULT($BUILD_LDFLAGS)
454 AC_MSG_CHECKING(for native build linker-libraries)
455 AC_ARG_WITH(build-libs,
456 [ --with-build-libs=XXX the build libraries (${BUILD_LIBS})],
457 [BUILD_LIBS="$withval"])
458 AC_MSG_RESULT($BUILD_LIBS)
460 # this assumes we're on Unix.
464 : ${BUILD_CC:='${CC}'}
466 if ( test "$BUILD_CC" = "$CC" || test "$BUILD_CC" = '${CC}' ) ; then
467 AC_MSG_ERROR([Cross-build requires two compilers.
468 Use --with-build-cc to specify the native compiler.])
472 : ${BUILD_CC:='${CC}'}
473 : ${BUILD_CPP:='${CPP}'}
474 : ${BUILD_CFLAGS:='${CFLAGS}'}
475 : ${BUILD_CPPFLAGS:='${CPPFLAGS}'}
476 : ${BUILD_LDFLAGS:='${LDFLAGS}'}
477 : ${BUILD_LIBS:='${LIBS}'}
478 : ${BUILD_EXEEXT:='$x'}
479 : ${BUILD_OBJEXT:='o'}
484 AC_SUBST(BUILD_CFLAGS)
485 AC_SUBST(BUILD_CPPFLAGS)
486 AC_SUBST(BUILD_LDFLAGS)
488 AC_SUBST(BUILD_EXEEXT)
489 AC_SUBST(BUILD_OBJEXT)
491 dnl ---------------------------------------------------------------------------
492 dnl CF_CC_ENV_FLAGS version: 1 updated: 2012/10/03 05:25:49
494 dnl Check for user's environment-breakage by stuffing CFLAGS/CPPFLAGS content
495 dnl into CC. This will not help with broken scripts that wrap the compiler with
496 dnl options, but eliminates a more common category of user confusion.
497 AC_DEFUN([CF_CC_ENV_FLAGS],
499 # This should have been defined by AC_PROG_CC
502 AC_MSG_CHECKING(\$CC variable)
505 AC_MSG_RESULT(broken)
506 AC_MSG_WARN(your environment misuses the CC variable to hold CFLAGS/CPPFLAGS options)
508 cf_flags=`echo "$CC" | sed -e 's/^[[^ ]]*[[ ]]//'`
509 CC=`echo "$CC" | sed -e 's/[[ ]].*//'`
510 CF_ADD_CFLAGS($cf_flags)
517 dnl ---------------------------------------------------------------------------
518 dnl CF_CFG_DEFAULTS version: 8 updated: 2011/06/04 20:09:13
520 dnl Determine the default configuration into which we'll install ncurses. This
521 dnl can be overridden by the user's command-line options. There's two items to
523 dnl 1. the prefix (e.g., /usr)
524 dnl 2. the header files (e.g., /usr/include/ncurses)
525 dnl We'll look for a previous installation of ncurses and use the same defaults.
527 dnl We don't use AC_PREFIX_DEFAULT, because it gets evaluated too soon, and
528 dnl we don't use AC_PREFIX_PROGRAM, because we cannot distinguish ncurses's
529 dnl programs from a vendor's.
530 AC_DEFUN([CF_CFG_DEFAULTS],
532 AC_MSG_CHECKING(for prefix)
533 if test "x$prefix" = "xNONE" ; then
534 case "$cf_cv_system_name" in
535 # non-vendor systems don't have a conflict
536 openbsd*|freebsd*|mirbsd*|linux*|cygwin*|k*bsd*-gnu)
539 *) prefix=$ac_default_prefix
543 AC_MSG_RESULT($prefix)
545 if test "x$prefix" = "xNONE" ; then
546 AC_MSG_CHECKING(for default include-directory)
547 test -n "$verbose" && echo 1>&AC_FD_MSG
550 $includedir/ncurses \
552 $prefix/include/ncurses \
554 /usr/local/include/ncurses \
558 cf_dir=`eval echo $cf_symbol`
559 if test -f $cf_dir/curses.h ; then
560 if ( fgrep NCURSES_VERSION $cf_dir/curses.h 2>&1 >/dev/null ) ; then
561 includedir="$cf_symbol"
562 test -n "$verbose" && echo $ac_n " found " 1>&AC_FD_MSG
566 test -n "$verbose" && echo " tested $cf_dir" 1>&AC_FD_MSG
568 AC_MSG_RESULT($includedir)
571 dnl ---------------------------------------------------------------------------
572 dnl CF_CHECK_CACHE version: 12 updated: 2012/10/02 20:55:03
574 dnl Check if we're accidentally using a cache from a different machine.
575 dnl Derive the system name, as a check for reusing the autoconf cache.
577 dnl If we've packaged config.guess and config.sub, run that (since it does a
578 dnl better job than uname). Normally we'll use AC_CANONICAL_HOST, but allow
579 dnl an extra parameter that we may override, e.g., for AC_CANONICAL_SYSTEM
580 dnl which is useful in cross-compiles.
582 dnl Note: we would use $ac_config_sub, but that is one of the places where
583 dnl autoconf 2.5x broke compatibility with autoconf 2.13
584 AC_DEFUN([CF_CHECK_CACHE],
586 if test -f $srcdir/config.guess || test -f $ac_aux_dir/config.guess ; then
587 ifelse([$1],,[AC_CANONICAL_HOST],[$1])
588 system_name="$host_os"
590 system_name="`(uname -s -r) 2>/dev/null`"
591 if test -z "$system_name" ; then
592 system_name="`(hostname) 2>/dev/null`"
595 test -n "$system_name" && AC_DEFINE_UNQUOTED(SYSTEM_NAME,"$system_name",[Define to the system name.])
596 AC_CACHE_VAL(cf_cv_system_name,[cf_cv_system_name="$system_name"])
598 test -z "$system_name" && system_name="$cf_cv_system_name"
599 test -n "$cf_cv_system_name" && AC_MSG_RESULT(Configuring for $cf_cv_system_name)
601 if test ".$system_name" != ".$cf_cv_system_name" ; then
602 AC_MSG_RESULT(Cached system name ($system_name) does not agree with actual ($cf_cv_system_name))
603 AC_MSG_ERROR("Please remove config.cache and try again.")
606 dnl ---------------------------------------------------------------------------
607 dnl CF_CLANG_COMPILER version: 1 updated: 2012/06/16 14:55:39
608 dnl -----------------
609 dnl Check if the given compiler is really clang. clang's C driver defines
610 dnl __GNUC__ (fooling the configure script into setting $GCC to yes) but does
611 dnl not ignore some gcc options.
613 dnl This macro should be run "soon" after AC_PROG_CC or AC_PROG_CPLUSPLUS, to
614 dnl ensure that it is not mistaken for gcc/g++. It is normally invoked from
615 dnl the wrappers for gcc and g++ warnings.
617 dnl $1 = GCC (default) or GXX
618 dnl $2 = INTEL_COMPILER (default) or INTEL_CPLUSPLUS
619 dnl $3 = CFLAGS (default) or CXXFLAGS
620 AC_DEFUN([CF_CLANG_COMPILER],[
621 ifelse([$2],,CLANG_COMPILER,[$2])=no
623 if test "$ifelse([$1],,[$1],GCC)" = yes ; then
624 AC_MSG_CHECKING(if this is really Clang ifelse([$1],GXX,C++,C) compiler)
625 cf_save_CFLAGS="$ifelse([$3],,CFLAGS,[$3])"
626 ifelse([$3],,CFLAGS,[$3])="$ifelse([$3],,CFLAGS,[$3]) -Qunused-arguments"
632 ],[ifelse([$2],,CLANG_COMPILER,[$2])=yes
633 cf_save_CFLAGS="$cf_save_CFLAGS -Qunused-arguments"
635 ifelse([$3],,CFLAGS,[$3])="$cf_save_CFLAGS"
636 AC_MSG_RESULT($ifelse([$2],,CLANG_COMPILER,[$2]))
639 dnl ---------------------------------------------------------------------------
640 dnl CF_CURSES_HEADER version: 3 updated: 2011/05/01 19:47:45
642 dnl Find a "curses" header file, e.g,. "curses.h", or one of the more common
643 dnl variations of ncurses' installs.
645 dnl $1 = ncurses when looking for ncurses, or is empty
646 AC_DEFUN([CF_CURSES_HEADER],[
647 AC_CACHE_CHECK(if we have identified curses headers,cf_cv_ncurses_header,[
648 cf_cv_ncurses_header=none
649 for cf_header in ifelse($1,,,[ \
653 curses.h ifelse($1,,[ncurses/ncurses.h ncurses/curses.h])
655 AC_TRY_COMPILE([#include <${cf_header}>],
656 [initscr(); tgoto("?", 0,0)],
657 [cf_cv_ncurses_header=$cf_header; break],[])
661 if test "$cf_cv_ncurses_header" = none ; then
662 AC_MSG_ERROR(No curses header-files found)
665 # cheat, to get the right #define's for HAVE_NCURSES_H, etc.
666 AC_CHECK_HEADERS($cf_cv_ncurses_header)
668 dnl ---------------------------------------------------------------------------
669 dnl CF_DIRNAME version: 4 updated: 2002/12/21 19:25:52
671 dnl "dirname" is not portable, so we fake it with a shell script.
672 AC_DEFUN([CF_DIRNAME],[$1=`echo $2 | sed -e 's%/[[^/]]*$%%'`])dnl
673 dnl ---------------------------------------------------------------------------
674 dnl CF_DISABLE_ECHO version: 12 updated: 2012/10/06 16:30:28
676 dnl You can always use "make -n" to see the actual options, but it's hard to
677 dnl pick out/analyze warning messages when the compile-line is long.
680 dnl ECHO_LT - symbol to control if libtool is verbose
681 dnl ECHO_LD - symbol to prefix "cc -o" lines
682 dnl RULE_CC - symbol to put before implicit "cc -c" lines (e.g., .c.o)
683 dnl SHOW_CC - symbol to put before explicit "cc -c" lines
684 dnl ECHO_CC - symbol to put before any "cc" line
686 AC_DEFUN([CF_DISABLE_ECHO],[
687 AC_MSG_CHECKING(if you want to see long compiling messages)
689 [ --disable-echo do not display "compiling" commands],
692 ECHO_LD='@echo linking [$]@;'
693 RULE_CC='@echo compiling [$]<'
694 SHOW_CC='@echo compiling [$]@'
703 AC_MSG_RESULT($enableval)
710 dnl ---------------------------------------------------------------------------
711 dnl CF_ENABLE_PC_FILES version: 9 updated: 2012/08/04 13:59:54
712 dnl ------------------
713 dnl This is the "--enable-pc-files" option, which is available if there is a
714 dnl pkg-config configuration on the local machine.
715 AC_DEFUN([CF_ENABLE_PC_FILES],[
716 AC_REQUIRE([CF_PKG_CONFIG])
717 AC_REQUIRE([CF_WITH_PKG_CONFIG_LIBDIR])
719 if test "$PKG_CONFIG" != none ; then
720 AC_MSG_CHECKING(if we should install .pc files for $PKG_CONFIG)
721 AC_ARG_ENABLE(pc-files,
722 [ --enable-pc-files generate and install .pc files for pkg-config],
723 [enable_pc_files=$enableval],
724 [enable_pc_files=no])
725 AC_MSG_RESULT($enable_pc_files)
726 if test "$enable_pc_files" != no
728 CF_PATH_SYNTAX(PKG_CONFIG_LIBDIR)
734 dnl ---------------------------------------------------------------------------
735 dnl CF_FIND_LIBRARY version: 9 updated: 2008/03/23 14:48:54
737 dnl Look for a non-standard library, given parameters for AC_TRY_LINK. We
738 dnl prefer a standard location, and use -L options only if we do not find the
739 dnl library in the standard library location(s).
740 dnl $1 = library name
741 dnl $2 = library class, usually the same as library name
743 dnl $4 = code fragment to compile/link
744 dnl $5 = corresponding function-name
745 dnl $6 = flag, nonnull if failure should not cause an error-exit
747 dnl Sets the variable "$cf_libdir" as a side-effect, so we can see if we had
748 dnl to use a -L option.
749 AC_DEFUN([CF_FIND_LIBRARY],
751 eval 'cf_cv_have_lib_'$1'=no'
754 eval 'cf_cv_have_lib_'$1'=yes',[
756 AC_MSG_CHECKING(for $5 in -l$1)
758 AC_TRY_LINK([$3],[$4],
760 eval 'cf_cv_have_lib_'$1'=yes'
763 CF_LIBRARY_PATH(cf_search,$2)
764 for cf_libdir in $cf_search
766 AC_MSG_CHECKING(for -l$1 in $cf_libdir)
767 LIBS="-L$cf_libdir -l$1 $cf_save_LIBS"
768 AC_TRY_LINK([$3],[$4],
770 eval 'cf_cv_have_lib_'$1'=yes'
773 LIBS="$cf_save_LIBS"])
777 eval 'cf_found_library=[$]cf_cv_have_lib_'$1
779 if test $cf_found_library = no ; then
780 AC_MSG_ERROR(Cannot link $1 library)
784 dnl ---------------------------------------------------------------------------
785 dnl CF_FIND_LINKAGE version: 19 updated: 2010/05/29 16:31:02
787 dnl Find a library (specifically the linkage used in the code fragment),
788 dnl searching for it if it is not already in the library path.
789 dnl See also CF_ADD_SEARCHPATH.
791 dnl Parameters (4-on are optional):
792 dnl $1 = headers for library entrypoint
793 dnl $2 = code fragment for library entrypoint
794 dnl $3 = the library name without the "-l" option or ".so" suffix.
795 dnl $4 = action to perform if successful (default: update CPPFLAGS, etc)
796 dnl $5 = action to perform if not successful
797 dnl $6 = module name, if not the same as the library name
798 dnl $7 = extra libraries
800 dnl Sets these variables:
801 dnl $cf_cv_find_linkage_$3 - yes/no according to whether linkage is found
802 dnl $cf_cv_header_path_$3 - include-directory if needed
803 dnl $cf_cv_library_path_$3 - library-directory if needed
804 dnl $cf_cv_library_file_$3 - library-file if needed, e.g., -l$3
805 AC_DEFUN([CF_FIND_LINKAGE],[
807 # If the linkage is not already in the $CPPFLAGS/$LDFLAGS configuration, these
808 # will be set on completion of the AC_TRY_LINK below.
809 cf_cv_header_path_$3=
810 cf_cv_library_path_$3=
812 CF_MSG_LOG([Starting [FIND_LINKAGE]($3,$6)])
816 AC_TRY_LINK([$1],[$2],[
817 cf_cv_find_linkage_$3=yes
818 cf_cv_header_path_$3=/usr/include
819 cf_cv_library_path_$3=/usr/lib
822 LIBS="-l$3 $7 $cf_save_LIBS"
824 AC_TRY_LINK([$1],[$2],[
825 cf_cv_find_linkage_$3=yes
826 cf_cv_header_path_$3=/usr/include
827 cf_cv_library_path_$3=/usr/lib
828 cf_cv_library_file_$3="-l$3"
830 cf_cv_find_linkage_$3=no
833 CF_VERBOSE(find linkage for $3 library)
834 CF_MSG_LOG([Searching for headers in [FIND_LINKAGE]($3,$6)])
836 cf_save_CPPFLAGS="$CPPFLAGS"
837 cf_test_CPPFLAGS="$CPPFLAGS"
839 CF_HEADER_PATH(cf_search,ifelse([$6],,[$3],[$6]))
840 for cf_cv_header_path_$3 in $cf_search
842 if test -d $cf_cv_header_path_$3 ; then
843 CF_VERBOSE(... testing $cf_cv_header_path_$3)
844 CPPFLAGS="$cf_save_CPPFLAGS -I$cf_cv_header_path_$3"
845 AC_TRY_COMPILE([$1],[$2],[
846 CF_VERBOSE(... found $3 headers in $cf_cv_header_path_$3)
847 cf_cv_find_linkage_$3=maybe
848 cf_test_CPPFLAGS="$CPPFLAGS"
850 CPPFLAGS="$cf_save_CPPFLAGS"
855 if test "$cf_cv_find_linkage_$3" = maybe ; then
857 CF_MSG_LOG([Searching for $3 library in [FIND_LINKAGE]($3,$6)])
860 cf_save_LDFLAGS="$LDFLAGS"
863 CPPFLAGS="$cf_test_CPPFLAGS"
864 LIBS="-l$3 $7 $cf_save_LIBS"
865 AC_TRY_LINK([$1],[$2],[
866 CF_VERBOSE(... found $3 library in system)
867 cf_cv_find_linkage_$3=yes])
868 CPPFLAGS="$cf_save_CPPFLAGS"
872 if test "$cf_cv_find_linkage_$3" != yes ; then
873 CF_LIBRARY_PATH(cf_search,$3)
874 for cf_cv_library_path_$3 in $cf_search
876 if test -d $cf_cv_library_path_$3 ; then
877 CF_VERBOSE(... testing $cf_cv_library_path_$3)
878 CPPFLAGS="$cf_test_CPPFLAGS"
879 LIBS="-l$3 $7 $cf_save_LIBS"
880 LDFLAGS="$cf_save_LDFLAGS -L$cf_cv_library_path_$3"
881 AC_TRY_LINK([$1],[$2],[
882 CF_VERBOSE(... found $3 library in $cf_cv_library_path_$3)
883 cf_cv_find_linkage_$3=yes
884 cf_cv_library_file_$3="-l$3"
886 CPPFLAGS="$cf_save_CPPFLAGS"
888 LDFLAGS="$cf_save_LDFLAGS"
892 CPPFLAGS="$cf_save_CPPFLAGS"
893 LDFLAGS="$cf_save_LDFLAGS"
897 cf_cv_find_linkage_$3=no
904 if test "$cf_cv_find_linkage_$3" = yes ; then
906 CF_ADD_INCDIR($cf_cv_header_path_$3)
907 CF_ADD_LIBDIR($cf_cv_library_path_$3)
911 ifelse([$5],,AC_MSG_WARN(Cannot find $3 library),[$5])
914 dnl ---------------------------------------------------------------------------
915 dnl CF_FIXUP_ADAFLAGS version: 1 updated: 2012/03/31 18:48:10
916 dnl -----------------
917 dnl make ADAFLAGS consistent with CFLAGS
918 AC_DEFUN([CF_FIXUP_ADAFLAGS],[
919 AC_MSG_CHECKING(optimization options for ADAFLAGS)
927 cf_O_flag=`echo "$CFLAGS" |sed -e 's/^.*-O/-O/' -e 's/[[ ]].*//'`
928 CF_ADD_ADAFLAGS($cf_O_flag)
931 AC_MSG_RESULT($ADAFLAGS)
933 dnl ---------------------------------------------------------------------------
934 dnl CF_GCC_ATTRIBUTES version: 16 updated: 2012/10/02 20:55:03
935 dnl -----------------
936 dnl Test for availability of useful gcc __attribute__ directives to quiet
937 dnl compiler warnings. Though useful, not all are supported -- and contrary
938 dnl to documentation, unrecognized directives cause older compilers to barf.
939 AC_DEFUN([CF_GCC_ATTRIBUTES],
943 cat > conftest.i <<EOF
951 #define GCC_NORETURN /* nothing */
954 #define GCC_UNUSED /* nothing */
959 AC_CHECKING([for $CC __attribute__ directives])
960 cat > conftest.$ac_ext <<EOF
961 #line __oline__ "${as_me:-configure}"
962 #include "confdefs.h"
963 #include "conftest.h"
964 #include "conftest.i"
966 #define GCC_PRINTFLIKE(fmt,var) __attribute__((format(printf,fmt,var)))
968 #define GCC_PRINTFLIKE(fmt,var) /*nothing*/
971 #define GCC_SCANFLIKE(fmt,var) __attribute__((format(scanf,fmt,var)))
973 #define GCC_SCANFLIKE(fmt,var) /*nothing*/
975 extern void wow(char *,...) GCC_SCANFLIKE(1,2);
976 extern void oops(char *,...) GCC_PRINTFLIKE(1,2) GCC_NORETURN;
977 extern void foo(void) GCC_NORETURN;
978 int main(int argc GCC_UNUSED, char *argv[[]] GCC_UNUSED) { return 0; }
980 cf_printf_attribute=no
981 cf_scanf_attribute=no
982 for cf_attribute in scanf printf unused noreturn
984 CF_UPPER(cf_ATTRIBUTE,$cf_attribute)
985 cf_directive="__attribute__(($cf_attribute))"
986 echo "checking for $CC $cf_directive" 1>&AC_FD_CC
988 case $cf_attribute in #(vi
990 cf_printf_attribute=yes
991 cat >conftest.h <<EOF
992 #define GCC_$cf_ATTRIBUTE 1
996 cf_scanf_attribute=yes
997 cat >conftest.h <<EOF
998 #define GCC_$cf_ATTRIBUTE 1
1002 cat >conftest.h <<EOF
1003 #define GCC_$cf_ATTRIBUTE $cf_directive
1008 if AC_TRY_EVAL(ac_compile); then
1009 test -n "$verbose" && AC_MSG_RESULT(... $cf_attribute)
1010 cat conftest.h >>confdefs.h
1011 case $cf_attribute in #(vi
1013 AC_DEFINE_UNQUOTED(GCC_NORETURN,$cf_directive,[Define to noreturn-attribute for gcc])
1016 cf_value='/* nothing */'
1017 if test "$cf_printf_attribute" != no ; then
1018 cf_value='__attribute__((format(printf,fmt,var)))'
1019 AC_DEFINE(GCC_PRINTF,1,[Define to 1 if the compiler supports gcc-like printf attribute.])
1021 AC_DEFINE_UNQUOTED(GCC_PRINTFLIKE(fmt,var),$cf_value,[Define to printf-attribute for gcc])
1024 cf_value='/* nothing */'
1025 if test "$cf_scanf_attribute" != no ; then
1026 cf_value='__attribute__((format(scanf,fmt,var)))'
1027 AC_DEFINE(GCC_SCANF,1,[Define to 1 if the compiler supports gcc-like scanf attribute.])
1029 AC_DEFINE_UNQUOTED(GCC_SCANFLIKE(fmt,var),$cf_value,[Define to sscanf-attribute for gcc])
1032 AC_DEFINE_UNQUOTED(GCC_UNUSED,$cf_directive,[Define to unused-attribute for gcc])
1038 fgrep define conftest.i >>confdefs.h
1043 dnl ---------------------------------------------------------------------------
1044 dnl CF_GCC_VERSION version: 7 updated: 2012/10/18 06:46:33
1046 dnl Find version of gcc
1047 AC_DEFUN([CF_GCC_VERSION],[
1048 AC_REQUIRE([AC_PROG_CC])
1050 if test "$GCC" = yes ; then
1051 AC_MSG_CHECKING(version of $CC)
1052 GCC_VERSION="`${CC} --version 2>/dev/null | sed -e '2,$d' -e 's/^.*(GCC[[^)]]*) //' -e 's/^.*(Debian[[^)]]*) //' -e 's/^[[^0-9.]]*//' -e 's/[[^0-9.]].*//'`"
1053 test -z "$GCC_VERSION" && GCC_VERSION=unknown
1054 AC_MSG_RESULT($GCC_VERSION)
1057 dnl ---------------------------------------------------------------------------
1058 dnl CF_GCC_WARNINGS version: 29 updated: 2012/06/16 14:55:39
1060 dnl Check if the compiler supports useful warning options. There's a few that
1061 dnl we don't use, simply because they're too noisy:
1063 dnl -Wconversion (useful in older versions of gcc, but not in gcc 2.7.x)
1064 dnl -Wredundant-decls (system headers make this too noisy)
1065 dnl -Wtraditional (combines too many unrelated messages, only a few useful)
1066 dnl -Wwrite-strings (too noisy, but should review occasionally). This
1067 dnl is enabled for ncurses using "--enable-const".
1071 dnl $1 is an optional list of gcc warning flags that a particular
1072 dnl application might want to use, e.g., "no-unused" for
1075 dnl If $with_ext_const is "yes", add a check for -Wwrite-strings
1077 AC_DEFUN([CF_GCC_WARNINGS],
1079 AC_REQUIRE([CF_GCC_VERSION])
1080 CF_INTEL_COMPILER(GCC,INTEL_COMPILER,CFLAGS)
1081 CF_CLANG_COMPILER(GCC,CLANG_COMPILER,CFLAGS)
1083 cat > conftest.$ac_ext <<EOF
1084 #line __oline__ "${as_me:-configure}"
1085 int main(int argc, char *argv[[]]) { return (argv[[argc-1]] == 0) ; }
1088 if test "$INTEL_COMPILER" = yes
1090 # The "-wdXXX" options suppress warnings:
1091 # remark #1419: external declaration in primary source file
1092 # remark #1683: explicit conversion of a 64-bit integral type to a smaller integral type (potential portability problem)
1093 # remark #1684: conversion from pointer to same-sized integral type (potential portability problem)
1094 # remark #193: zero used for undefined preprocessing identifier
1095 # remark #593: variable "curs_sb_left_arrow" was set but never used
1096 # remark #810: conversion from "int" to "Dimension={unsigned short}" may lose significant bits
1097 # remark #869: parameter "tw" was never referenced
1098 # remark #981: operands are evaluated in unspecified order
1099 # warning #279: controlling expression is constant
1101 AC_CHECKING([for $CC warning options])
1102 cf_save_CFLAGS="$CFLAGS"
1103 EXTRA_CFLAGS="-Wall"
1115 CFLAGS="$cf_save_CFLAGS $EXTRA_CFLAGS -$cf_opt"
1116 if AC_TRY_EVAL(ac_compile); then
1117 test -n "$verbose" && AC_MSG_RESULT(... -$cf_opt)
1118 EXTRA_CFLAGS="$EXTRA_CFLAGS -$cf_opt"
1121 CFLAGS="$cf_save_CFLAGS"
1123 elif test "$GCC" = yes
1125 AC_CHECKING([for $CC warning options])
1126 cf_save_CFLAGS="$CFLAGS"
1129 test "$with_ext_const" = yes && cf_warn_CONST="Wwrite-strings"
1130 for cf_opt in W Wall \
1131 Wbad-function-cast \
1135 Wmissing-declarations \
1136 Wmissing-prototypes \
1140 Wstrict-prototypes \
1141 Wundef $cf_warn_CONST $1
1143 CFLAGS="$cf_save_CFLAGS $EXTRA_CFLAGS -$cf_opt"
1144 if AC_TRY_EVAL(ac_compile); then
1145 test -n "$verbose" && AC_MSG_RESULT(... -$cf_opt)
1146 case $cf_opt in #(vi
1148 CPPFLAGS="$CPPFLAGS -DXTSTRINGDEFINES"
1151 case $GCC_VERSION in
1153 CF_VERBOSE(feature is broken in gcc $GCC_VERSION)
1157 Wpointer-arith) #(vi
1158 case $GCC_VERSION in
1160 CF_VERBOSE(feature is broken in gcc $GCC_VERSION)
1165 EXTRA_CFLAGS="$EXTRA_CFLAGS -$cf_opt"
1168 CFLAGS="$cf_save_CFLAGS"
1172 AC_SUBST(EXTRA_CFLAGS)
1174 dnl ---------------------------------------------------------------------------
1175 dnl CF_GNAT_GENERICS version: 2 updated: 2011/03/23 20:24:41
1176 dnl ----------------
1177 AC_DEFUN([CF_GNAT_GENERICS],
1179 AC_REQUIRE([CF_GNAT_VERSION])
1181 AC_MSG_CHECKING(if GNAT supports generics)
1182 case $cf_gnat_version in #(vi
1183 3.[[1-9]]*|[[4-9]].*) #(vi
1184 cf_gnat_generics=yes
1190 AC_MSG_RESULT($cf_gnat_generics)
1192 if test "$cf_gnat_generics" = yes
1194 cf_compile_generics=generics
1195 cf_generic_objects="\${GENOBJS}"
1197 cf_compile_generics=
1201 AC_SUBST(cf_compile_generics)
1202 AC_SUBST(cf_generic_objects)
1204 dnl ---------------------------------------------------------------------------
1205 dnl CF_GNAT_PRAGMA_UNREF version: 1 updated: 2010/06/19 15:22:18
1206 dnl --------------------
1207 dnl Check if the gnat pragma "Unreferenced" works.
1208 AC_DEFUN([CF_GNAT_PRAGMA_UNREF],[
1209 AC_CACHE_CHECK(if GNAT pragma Unreferenced works,cf_cv_pragma_unreferenced,[
1210 CF_GNAT_TRY_LINK([procedure conftest;],
1213 procedure conftest is
1215 pragma Unreferenced (test);
1218 Text_IO.Put ("Hello World");
1220 GNAT.OS_Lib.OS_Exit (0);
1222 [cf_cv_pragma_unreferenced=yes],
1223 [cf_cv_pragma_unreferenced=no])])
1225 # if the pragma is supported, use it (needed in the Trace code).
1226 if test $cf_cv_pragma_unreferenced = yes ; then
1231 AC_SUBST(PRAGMA_UNREF)
1233 dnl ---------------------------------------------------------------------------
1234 dnl CF_GNAT_PROJECTS version: 2 updated: 2011/03/23 20:24:41
1235 dnl ----------------
1236 dnl GNAT projects are configured with ".gpr" project files.
1237 dnl GNAT libraries are a further development, using the project feature.
1238 AC_DEFUN([CF_GNAT_PROJECTS],
1240 AC_REQUIRE([CF_GNAT_VERSION])
1242 cf_gnat_libraries=no
1245 AC_MSG_CHECKING(if GNAT supports project files)
1246 case $cf_gnat_version in #(vi
1250 case $cf_cv_system_name in #(vi
1254 mkdir conftest.src conftest.bin conftest.lib
1256 rm -rf conftest* *~conftest*
1257 cat >>library.gpr <<CF_EOF
1259 Kind := External ("LIB_KIND");
1260 for Library_Name use "ConfTest";
1261 for Object_Dir use ".";
1262 for Library_ALI_Dir use External("LIBRARY_DIR");
1263 for Library_Version use External ("SONAME");
1264 for Library_Kind use Kind;
1265 for Library_Dir use External("BUILD_DIR");
1266 Source_Dir := External ("SOURCE_DIR");
1267 for Source_Dirs use (Source_Dir);
1269 for Default_Switches ("Ada") use
1273 "-gnatVa", -- All validity checks
1274 "-gnatwa"); -- Activate all optional errors
1278 cat >>confpackage.ads <<CF_EOF
1279 package ConfPackage is
1283 cat >>confpackage.adb <<CF_EOF
1285 package body ConfPackage is
1286 procedure conftest is
1288 Text_IO.Put ("Hello World");
1293 if ( $cf_ada_make $ADAFLAGS \
1295 -XBUILD_DIR=`cd ../conftest.bin;pwd` \
1296 -XLIBRARY_DIR=`cd ../conftest.lib;pwd` \
1297 -XSOURCE_DIR=`pwd` \
1298 -XSONAME=libConfTest.so.1 \
1299 -XLIB_KIND=static 1>&AC_FD_CC 2>&1 ) ; then
1300 cf_gnat_projects=yes
1303 if test -f conftest.lib/confpackage.ali
1305 cf_gnat_libraries=yes
1307 rm -rf conftest* *~conftest*
1312 AC_MSG_RESULT($cf_gnat_projects)
1314 if test $cf_gnat_projects = yes
1316 AC_MSG_CHECKING(if GNAT supports libraries)
1317 AC_MSG_RESULT($cf_gnat_libraries)
1320 if test "$cf_gnat_projects" = yes
1322 USE_OLD_MAKERULES="#"
1323 USE_GNAT_PROJECTS=""
1325 USE_OLD_MAKERULES=""
1326 USE_GNAT_PROJECTS="#"
1329 if test "$cf_gnat_libraries" = yes
1331 USE_GNAT_LIBRARIES=""
1333 USE_GNAT_LIBRARIES="#"
1336 AC_SUBST(USE_OLD_MAKERULES)
1337 AC_SUBST(USE_GNAT_PROJECTS)
1338 AC_SUBST(USE_GNAT_LIBRARIES)
1340 dnl ---------------------------------------------------------------------------
1341 dnl CF_GNAT_SIGINT version: 1 updated: 2011/03/27 20:07:59
1343 dnl Check if gnat supports SIGINT, and presumably tasking. For the latter, it
1344 dnl is noted that gnat may compile a tasking unit even for configurations which
1345 dnl fail at runtime.
1346 AC_DEFUN([CF_GNAT_SIGINT],[
1347 AC_CACHE_CHECK(if GNAT supports SIGINT,cf_cv_gnat_sigint,[
1348 CF_GNAT_TRY_LINK([with Ada.Interrupts.Names;
1352 pragma Warnings (Off); -- the next pragma exists since 3.11p
1353 pragma Unreserve_All_Interrupts;
1354 pragma Warnings (On);
1356 protected Process is
1358 function Continue return Boolean;
1359 pragma Attach_Handler (Stop, Ada.Interrupts.Names.SIGINT);
1361 Done : Boolean := False;
1365 [package body ConfTest is
1366 protected body Process is
1371 function Continue return Boolean is
1377 [cf_cv_gnat_sigint=yes],
1378 [cf_cv_gnat_sigint=no])])
1380 if test $cf_cv_gnat_sigint = yes ; then
1385 AC_SUBST(USE_GNAT_SIGINT)
1387 dnl ---------------------------------------------------------------------------
1388 dnl CF_GNAT_TRY_LINK version: 3 updated: 2011/03/19 14:47:45
1389 dnl ----------------
1390 dnl Verify that a test program compiles/links with GNAT.
1391 dnl $cf_ada_make is set to the program that compiles/links
1392 dnl $ADAFLAGS may be set to the GNAT flags.
1394 dnl $1 is the text of the spec
1395 dnl $2 is the text of the body
1396 dnl $3 is the shell command to execute if successful
1397 dnl $4 is the shell command to execute if not successful
1398 AC_DEFUN([CF_GNAT_TRY_LINK],
1400 rm -rf conftest* *~conftest*
1401 cat >>conftest.ads <<CF_EOF
1404 cat >>conftest.adb <<CF_EOF
1407 if ( $cf_ada_make $ADAFLAGS conftest 1>&AC_FD_CC 2>&1 ) ; then
1408 ifelse($3,, :,[ $3])
1412 rm -rf conftest* *~conftest*
1414 dnl ---------------------------------------------------------------------------
1415 dnl CF_GNAT_TRY_RUN version: 5 updated: 2011/03/19 14:47:45
1417 dnl Verify that a test program compiles and runs with GNAT
1418 dnl $cf_ada_make is set to the program that compiles/links
1419 dnl $ADAFLAGS may be set to the GNAT flags.
1421 dnl $1 is the text of the spec
1422 dnl $2 is the text of the body
1423 dnl $3 is the shell command to execute if successful
1424 dnl $4 is the shell command to execute if not successful
1425 AC_DEFUN([CF_GNAT_TRY_RUN],
1427 rm -rf conftest* *~conftest*
1428 cat >>conftest.ads <<CF_EOF
1431 cat >>conftest.adb <<CF_EOF
1434 if ( $cf_ada_make $ADAFLAGS conftest 1>&AC_FD_CC 2>&1 ) ; then
1435 if ( ./conftest 1>&AC_FD_CC 2>&1 ) ; then
1436 ifelse($3,, :,[ $3])
1443 rm -rf conftest* *~conftest*
1445 dnl ---------------------------------------------------------------------------
1446 dnl CF_GNAT_VERSION version: 18 updated: 2012/01/21 19:28:10
1448 dnl Verify version of GNAT.
1449 AC_DEFUN([CF_GNAT_VERSION],
1451 AC_MSG_CHECKING(for gnat version)
1452 cf_gnat_version=`${cf_ada_make:-gnatmake} -v 2>&1 | \
1453 grep '[[0-9]].[[0-9]][[0-9]]*' |\
1454 sed -e '2,$d' -e 's/[[^0-9 \.]]//g' -e 's/^[[ ]]*//' -e 's/ .*//'`
1455 AC_MSG_RESULT($cf_gnat_version)
1457 case $cf_gnat_version in #(vi
1458 3.1[[1-9]]*|3.[[2-9]]*|[[4-9]].*|20[[0-9]][[0-9]]) #(vi
1459 cf_cv_prog_gnat_correct=yes
1462 AC_MSG_WARN(Unsupported GNAT version $cf_gnat_version. We require 3.11 or better. Disabling Ada95 binding.)
1463 cf_cv_prog_gnat_correct=no
1467 dnl ---------------------------------------------------------------------------
1468 dnl CF_GNU_SOURCE version: 6 updated: 2005/07/09 13:23:07
1470 dnl Check if we must define _GNU_SOURCE to get a reasonable value for
1471 dnl _XOPEN_SOURCE, upon which many POSIX definitions depend. This is a defect
1472 dnl (or misfeature) of glibc2, which breaks portability of many applications,
1473 dnl since it is interwoven with GNU extensions.
1475 dnl Well, yes we could work around it...
1476 AC_DEFUN([CF_GNU_SOURCE],
1478 AC_CACHE_CHECK(if we must define _GNU_SOURCE,cf_cv_gnu_source,[
1479 AC_TRY_COMPILE([#include <sys/types.h>],[
1480 #ifndef _XOPEN_SOURCE
1483 [cf_cv_gnu_source=no],
1484 [cf_save="$CPPFLAGS"
1485 CPPFLAGS="$CPPFLAGS -D_GNU_SOURCE"
1486 AC_TRY_COMPILE([#include <sys/types.h>],[
1487 #ifdef _XOPEN_SOURCE
1490 [cf_cv_gnu_source=no],
1491 [cf_cv_gnu_source=yes])
1495 test "$cf_cv_gnu_source" = yes && CPPFLAGS="$CPPFLAGS -D_GNU_SOURCE"
1497 dnl ---------------------------------------------------------------------------
1498 dnl CF_HEADER_PATH version: 12 updated: 2010/05/05 05:22:40
1500 dnl Construct a search-list of directories for a nonstandard header-file
1503 dnl $1 = the variable to return as result
1504 dnl $2 = the package name
1505 AC_DEFUN([CF_HEADER_PATH],
1509 # collect the current set of include-directories from compiler flags
1510 cf_header_path_list=""
1511 if test -n "${CFLAGS}${CPPFLAGS}" ; then
1512 for cf_header_path in $CPPFLAGS $CFLAGS
1514 case $cf_header_path in #(vi
1516 cf_header_path=`echo ".$cf_header_path" |sed -e 's/^...//' -e 's,/include$,,'`
1517 CF_ADD_SUBDIR_PATH($1,$2,include,$cf_header_path,NONE)
1518 cf_header_path_list="$cf_header_path_list [$]$1"
1524 # add the variations for the package we are looking for
1525 CF_SUBDIR_PATH($1,$2,include)
1527 test "$includedir" != NONE && \
1528 test "$includedir" != "/usr/include" && \
1529 test -d "$includedir" && {
1530 test -d $includedir && $1="[$]$1 $includedir"
1531 test -d $includedir/$2 && $1="[$]$1 $includedir/$2"
1534 test "$oldincludedir" != NONE && \
1535 test "$oldincludedir" != "/usr/include" && \
1536 test -d "$oldincludedir" && {
1537 test -d $oldincludedir && $1="[$]$1 $oldincludedir"
1538 test -d $oldincludedir/$2 && $1="[$]$1 $oldincludedir/$2"
1541 $1="[$]$1 $cf_header_path_list"
1543 dnl ---------------------------------------------------------------------------
1544 dnl CF_HELP_MESSAGE version: 3 updated: 1998/01/14 10:56:23
1546 dnl Insert text into the help-message, for readability, from AC_ARG_WITH.
1547 AC_DEFUN([CF_HELP_MESSAGE],
1548 [AC_DIVERT_HELP([$1])dnl
1550 dnl ---------------------------------------------------------------------------
1551 dnl CF_INCLUDE_DIRS version: 7 updated: 2012/11/10 19:15:05
1553 dnl Construct the list of include-options according to whether we're building
1554 dnl in the source directory or using '--srcdir=DIR' option. If we're building
1555 dnl with gcc, don't append the includedir if it happens to be /usr/include,
1556 dnl since that usually breaks gcc's shadow-includes.
1557 AC_DEFUN([CF_INCLUDE_DIRS],
1559 if test "$GCC" != yes; then
1560 CPPFLAGS="-I\${includedir} $CPPFLAGS"
1561 elif test "$includedir" != "/usr/include"; then
1562 if test "$includedir" = '${prefix}/include' ; then
1563 if test $prefix != /usr ; then
1564 CPPFLAGS="-I\${includedir} $CPPFLAGS"
1567 CPPFLAGS="-I\${includedir} $CPPFLAGS"
1570 if test "$srcdir" != "."; then
1571 CPPFLAGS="-I\${srcdir}/../include $CPPFLAGS"
1573 CPPFLAGS="-I. -I../include $CPPFLAGS"
1576 dnl ---------------------------------------------------------------------------
1577 dnl CF_INTEL_COMPILER version: 4 updated: 2010/05/26 05:38:42
1578 dnl -----------------
1579 dnl Check if the given compiler is really the Intel compiler for Linux. It
1580 dnl tries to imitate gcc, but does not return an error when it finds a mismatch
1581 dnl between prototypes, e.g., as exercised by CF_MISSING_CHECK.
1583 dnl This macro should be run "soon" after AC_PROG_CC or AC_PROG_CPLUSPLUS, to
1584 dnl ensure that it is not mistaken for gcc/g++. It is normally invoked from
1585 dnl the wrappers for gcc and g++ warnings.
1587 dnl $1 = GCC (default) or GXX
1588 dnl $2 = INTEL_COMPILER (default) or INTEL_CPLUSPLUS
1589 dnl $3 = CFLAGS (default) or CXXFLAGS
1590 AC_DEFUN([CF_INTEL_COMPILER],[
1591 ifelse([$2],,INTEL_COMPILER,[$2])=no
1593 if test "$ifelse([$1],,[$1],GCC)" = yes ; then
1596 AC_MSG_CHECKING(if this is really Intel ifelse([$1],GXX,C++,C) compiler)
1597 cf_save_CFLAGS="$ifelse([$3],,CFLAGS,[$3])"
1598 ifelse([$3],,CFLAGS,[$3])="$ifelse([$3],,CFLAGS,[$3]) -no-gcc"
1600 #ifdef __INTEL_COMPILER
1604 ],[ifelse([$2],,INTEL_COMPILER,[$2])=yes
1605 cf_save_CFLAGS="$cf_save_CFLAGS -we147 -no-gcc"
1607 ifelse([$3],,CFLAGS,[$3])="$cf_save_CFLAGS"
1608 AC_MSG_RESULT($ifelse([$2],,INTEL_COMPILER,[$2]))
1613 dnl ---------------------------------------------------------------------------
1614 dnl CF_LARGEFILE version: 8 updated: 2012/10/06 08:57:51
1616 dnl Add checks for large file support.
1617 AC_DEFUN([CF_LARGEFILE],[
1618 ifdef([AC_FUNC_FSEEKO],[
1620 if test "$enable_largefile" != no ; then
1623 # Normally we would collect these definitions in the config.h,
1624 # but (like _XOPEN_SOURCE), some environments rely on having these
1625 # defined before any of the system headers are included. Another
1626 # case comes up with C++, e.g., on AIX the compiler compiles the
1627 # header files by themselves before looking at the body files it is
1628 # told to compile. For ncurses, those header files do not include
1630 test "$ac_cv_sys_large_files" != no && CPPFLAGS="$CPPFLAGS -D_LARGE_FILES "
1631 test "$ac_cv_sys_largefile_source" != no && CPPFLAGS="$CPPFLAGS -D_LARGEFILE_SOURCE "
1632 test "$ac_cv_sys_file_offset_bits" != no && CPPFLAGS="$CPPFLAGS -D_FILE_OFFSET_BITS=$ac_cv_sys_file_offset_bits "
1634 AC_CACHE_CHECK(whether to use struct dirent64, cf_cv_struct_dirent64,[
1636 #include <sys/types.h>
1639 /* if transitional largefile support is setup, this is true */
1640 extern struct dirent64 * readdir(DIR *);
1641 struct dirent64 *x = readdir((DIR *)0);
1642 struct dirent *y = readdir((DIR *)0);
1645 [cf_cv_struct_dirent64=yes],
1646 [cf_cv_struct_dirent64=no])
1648 test "$cf_cv_struct_dirent64" = yes && AC_DEFINE(HAVE_STRUCT_DIRENT64,1,[Define to 1 if we have struct dirent64])
1652 dnl ---------------------------------------------------------------------------
1653 dnl CF_LD_RPATH_OPT version: 5 updated: 2011/07/17 14:48:41
1655 dnl For the given system and compiler, find the compiler flags to pass to the
1656 dnl loader to use the "rpath" feature.
1657 AC_DEFUN([CF_LD_RPATH_OPT],
1659 AC_REQUIRE([CF_CHECK_CACHE])
1662 AC_MSG_CHECKING(for an rpath option)
1663 case $cf_cv_system_name in #(vi
1665 if test "$GCC" = yes; then
1666 LD_RPATH_OPT="-Wl,-rpath,"
1668 LD_RPATH_OPT="-rpath "
1671 linux*|gnu*|k*bsd*-gnu) #(vi
1672 LD_RPATH_OPT="-Wl,-rpath,"
1674 openbsd[[2-9]].*|mirbsd*) #(vi
1675 LD_RPATH_OPT="-Wl,-rpath,"
1677 dragonfly*|freebsd*) #(vi
1678 LD_RPATH_OPT="-rpath "
1681 LD_RPATH_OPT="-Wl,-rpath,"
1684 LD_RPATH_OPT="-rpath "
1692 AC_MSG_RESULT($LD_RPATH_OPT)
1694 case "x$LD_RPATH_OPT" in #(vi
1696 AC_MSG_CHECKING(if we need a space after rpath option)
1697 cf_save_LIBS="$LIBS"
1698 CF_ADD_LIBS(${LD_RPATH_OPT}$libdir)
1699 AC_TRY_LINK(, , cf_rpath_space=no, cf_rpath_space=yes)
1700 LIBS="$cf_save_LIBS"
1701 AC_MSG_RESULT($cf_rpath_space)
1702 test "$cf_rpath_space" = yes && LD_RPATH_OPT="$LD_RPATH_OPT "
1706 dnl ---------------------------------------------------------------------------
1707 dnl CF_LIBRARY_PATH version: 9 updated: 2010/03/28 12:52:50
1709 dnl Construct a search-list of directories for a nonstandard library-file
1712 dnl $1 = the variable to return as result
1713 dnl $2 = the package name
1714 AC_DEFUN([CF_LIBRARY_PATH],
1717 cf_library_path_list=""
1718 if test -n "${LDFLAGS}${LIBS}" ; then
1719 for cf_library_path in $LDFLAGS $LIBS
1721 case $cf_library_path in #(vi
1723 cf_library_path=`echo ".$cf_library_path" |sed -e 's/^...//' -e 's,/lib$,,'`
1724 CF_ADD_SUBDIR_PATH($1,$2,lib,$cf_library_path,NONE)
1725 cf_library_path_list="$cf_library_path_list [$]$1"
1731 CF_SUBDIR_PATH($1,$2,lib)
1733 $1="$cf_library_path_list [$]$1"
1735 dnl ---------------------------------------------------------------------------
1736 dnl CF_LIB_PREFIX version: 9 updated: 2012/01/21 19:28:10
1738 dnl Compute the library-prefix for the given host system
1739 dnl $1 = variable to set
1740 define([CF_LIB_PREFIX],
1742 case $cf_cv_system_name in #(vi
1749 ifelse($1,,,[$1=$LIB_PREFIX])
1750 AC_SUBST(LIB_PREFIX)
1752 dnl ---------------------------------------------------------------------------
1753 dnl CF_LIB_SUFFIX version: 18 updated: 2012/02/25 15:20:07
1755 dnl Compute the library file-suffix from the given model name
1757 dnl $2 = variable to set (the nominal library suffix)
1758 dnl $3 = dependency variable to set (actual filename)
1759 dnl The variable $LIB_SUFFIX, if set, prepends the variable to set.
1760 AC_DEFUN([CF_LIB_SUFFIX],
1762 AC_REQUIRE([CF_SUBST_NCURSES_VERSION])
1781 case $cf_cv_system_name in
1786 cygwin*|mingw*) #(vi
1811 test -n "$LIB_SUFFIX" && $2="${LIB_SUFFIX}[$]{$2}"
1812 test -n "$LIB_SUFFIX" && $3="${LIB_SUFFIX}[$]{$3}"
1814 dnl ---------------------------------------------------------------------------
1815 dnl CF_LIB_TYPE version: 4 updated: 2000/10/20 22:57:49
1817 dnl Compute the string to append to -library from the given model name
1819 dnl $2 = variable to set
1820 dnl The variable $LIB_SUFFIX, if set, prepends the variable to set.
1821 AC_DEFUN([CF_LIB_TYPE],
1830 test -n "$LIB_SUFFIX" && $2="${LIB_SUFFIX}[$]{$2}"
1832 dnl ---------------------------------------------------------------------------
1833 dnl CF_LINK_DATAONLY version: 10 updated: 2012/10/06 17:41:51
1834 dnl ----------------
1835 dnl Some systems have a non-ANSI linker that doesn't pull in modules that have
1836 dnl only data (i.e., no functions), for example NeXT. On those systems we'll
1837 dnl have to provide wrappers for global tables to ensure they're linked
1839 AC_DEFUN([CF_LINK_DATAONLY],
1841 AC_MSG_CHECKING([if data-only library module links])
1842 AC_CACHE_VAL(cf_cv_link_dataonly,[
1844 cat >conftest.$ac_ext <<EOF
1845 #line __oline__ "configure"
1846 int testdata[[3]] = { 123, 456, 789 };
1848 if AC_TRY_EVAL(ac_compile) ; then
1849 mv conftest.o data.o && \
1850 ( $AR $ARFLAGS conftest.a data.o ) 2>&AC_FD_CC 1>/dev/null
1852 rm -f conftest.$ac_ext data.o
1853 cat >conftest.$ac_ext <<EOF
1854 #line __oline__ "configure"
1858 ${cf_cv_main_return:-return}(1); /* I'm told this linker is broken */
1860 extern int testdata[[3]];
1861 return testdata[[0]] == 123
1862 && testdata[[1]] == 456
1863 && testdata[[2]] == 789;
1867 if AC_TRY_EVAL(ac_compile); then
1868 mv conftest.o func.o && \
1869 ( $AR $ARFLAGS conftest.a func.o ) 2>&AC_FD_CC 1>/dev/null
1871 rm -f conftest.$ac_ext func.o
1872 ( eval $RANLIB conftest.a ) 2>&AC_FD_CC >/dev/null
1874 LIBS="conftest.a $LIBS"
1878 extern int testfunc();
1879 ${cf_cv_main_return:-return} (!testfunc());
1882 [cf_cv_link_dataonly=yes],
1883 [cf_cv_link_dataonly=no],
1884 [cf_cv_link_dataonly=unknown])
1887 AC_MSG_RESULT($cf_cv_link_dataonly)
1889 if test "$cf_cv_link_dataonly" = no ; then
1890 AC_DEFINE(BROKEN_LINKER,1,[if data-only library module does not link])
1895 dnl ---------------------------------------------------------------------------
1896 dnl CF_MAKEFLAGS version: 14 updated: 2011/03/31 19:29:46
1898 dnl Some 'make' programs support ${MAKEFLAGS}, some ${MFLAGS}, to pass 'make'
1899 dnl options to lower-levels. It's very useful for "make -n" -- if we have it.
1900 dnl (GNU 'make' does both, something POSIX 'make', which happens to make the
1901 dnl ${MAKEFLAGS} variable incompatible because it adds the assignments :-)
1902 AC_DEFUN([CF_MAKEFLAGS],
1904 AC_CACHE_CHECK(for makeflags variable, cf_cv_makeflags,[
1906 for cf_option in '-${MAKEFLAGS}' '${MFLAGS}'
1908 cat >cf_makeflags.tmp <<CF_EOF
1911 @ echo '.$cf_option'
1913 cf_result=`${MAKE:-make} -k -f cf_makeflags.tmp 2>/dev/null | fgrep -v "ing directory" | sed -e 's,[[ ]]*$,,'`
1914 case "$cf_result" in
1916 cf_result=`${MAKE:-make} -k -f cf_makeflags.tmp CC=cc 2>/dev/null`
1917 case "$cf_result" in
1918 .*CC=*) cf_cv_makeflags=
1920 *) cf_cv_makeflags=$cf_option
1926 *) echo "given option \"$cf_option\", no match \"$cf_result\""
1930 rm -f cf_makeflags.tmp
1933 AC_SUBST(cf_cv_makeflags)
1935 dnl ---------------------------------------------------------------------------
1936 dnl CF_MAKE_TAGS version: 6 updated: 2010/10/23 15:52:32
1938 dnl Generate tags/TAGS targets for makefiles. Do not generate TAGS if we have
1939 dnl a monocase filesystem.
1940 AC_DEFUN([CF_MAKE_TAGS],[
1941 AC_REQUIRE([CF_MIXEDCASE_FILENAMES])
1943 AC_CHECK_PROGS(CTAGS, exctags ctags)
1944 AC_CHECK_PROGS(ETAGS, exetags etags)
1946 AC_CHECK_PROG(MAKE_LOWER_TAGS, ${CTAGS:-ctags}, yes, no)
1948 if test "$cf_cv_mixedcase" = yes ; then
1949 AC_CHECK_PROG(MAKE_UPPER_TAGS, ${ETAGS:-etags}, yes, no)
1954 if test "$MAKE_UPPER_TAGS" = yes ; then
1960 if test "$MAKE_LOWER_TAGS" = yes ; then
1969 AC_SUBST(MAKE_UPPER_TAGS)
1970 AC_SUBST(MAKE_LOWER_TAGS)
1972 dnl ---------------------------------------------------------------------------
1973 dnl CF_MIXEDCASE_FILENAMES version: 4 updated: 2012/10/02 20:55:03
1974 dnl ----------------------
1975 dnl Check if the file-system supports mixed-case filenames. If we're able to
1976 dnl create a lowercase name and see it as uppercase, it doesn't support that.
1977 AC_DEFUN([CF_MIXEDCASE_FILENAMES],
1979 AC_CACHE_CHECK(if filesystem supports mixed-case filenames,cf_cv_mixedcase,[
1980 if test "$cross_compiling" = yes ; then
1981 case $target_alias in #(vi
1982 *-os2-emx*|*-msdosdjgpp*|*-cygwin*|*-mingw32*|*-uwin*) #(vi
1990 rm -f conftest CONFTEST
1992 if test -f CONFTEST ; then
1997 rm -f conftest CONFTEST
2000 test "$cf_cv_mixedcase" = yes && AC_DEFINE(MIXEDCASE_FILENAMES,1,[Define to 1 if filesystem supports mixed-case filenames.])
2002 dnl ---------------------------------------------------------------------------
2003 dnl CF_MKSTEMP version: 9 updated: 2012/10/03 04:34:49
2005 dnl Check for a working mkstemp. This creates two files, checks that they are
2006 dnl successfully created and distinct (AmigaOS apparently fails on the last).
2007 AC_DEFUN([CF_MKSTEMP],[
2008 AC_CACHE_CHECK(for working mkstemp, cf_cv_func_mkstemp,[
2011 #include <sys/types.h>
2015 #include <sys/stat.h>
2018 char *tmpl = "conftestXXXXXX";
2026 for (n = 0; n < 2; ++n) {
2027 strcpy(name[n], tmpl);
2028 if ((fd = mkstemp(name[n])) >= 0) {
2029 if (!strcmp(name[n], tmpl)
2030 || stat(name[n], &sb) != 0
2031 || (sb.st_mode & S_IFMT) != S_IFREG
2032 || (sb.st_mode & 077) != 0) {
2039 && !strcmp(name[0], name[1]))
2041 ${cf_cv_main_return:-return}(result);
2043 ],[cf_cv_func_mkstemp=yes
2044 ],[cf_cv_func_mkstemp=no
2045 ],[cf_cv_func_mkstemp=maybe])
2047 if test "x$cf_cv_func_mkstemp" = xmaybe ; then
2048 AC_CHECK_FUNC(mkstemp)
2050 if test "x$cf_cv_func_mkstemp" = xyes || test "x$ac_cv_func_mkstemp" = xyes ; then
2051 AC_DEFINE(HAVE_MKSTEMP,1,[Define to 1 if mkstemp() is available and working.])
2054 dnl ---------------------------------------------------------------------------
2055 dnl CF_MSG_LOG version: 5 updated: 2010/10/23 15:52:32
2057 dnl Write a debug message to config.log, along with the line number in the
2058 dnl configure script.
2059 AC_DEFUN([CF_MSG_LOG],[
2060 echo "${as_me:-configure}:__oline__: testing $* ..." 1>&AC_FD_CC
2062 dnl ---------------------------------------------------------------------------
2063 dnl CF_NCURSES_ADDON version: 4 updated: 2011/03/27 17:10:13
2064 dnl ----------------
2065 dnl Configure an ncurses add-on, built outside the ncurses tree.
2066 AC_DEFUN([CF_NCURSES_ADDON],[
2068 AC_PROVIDE([CF_SUBST_NCURSES_VERSION])
2070 AC_MSG_CHECKING(if you want wide-character code)
2071 AC_ARG_ENABLE(widec,
2072 [ --enable-widec compile with wide-char/UTF-8 code],
2073 [with_widec=$enableval],
2075 AC_MSG_RESULT($with_widec)
2076 if test "$with_widec" = yes ; then
2078 CF_NCURSES_CONFIG(ncursesw)
2080 CF_NCURSES_CONFIG(ncurses)
2083 if test "$NCURSES_CONFIG" != none ; then
2085 cf_version=`$NCURSES_CONFIG --version`
2087 NCURSES_MAJOR=`echo "$cf_version" | sed -e 's/\..*//'`
2088 NCURSES_MINOR=`echo "$cf_version" | sed -e 's/^[[0-9]][[0-9]]*\.//' -e 's/\..*//'`
2089 NCURSES_PATCH=`echo "$cf_version" | sed -e 's/^[[0-9]][[0-9]]*\.[[0-9]][[0-9]]*\.//'`
2091 # ABI version is not available from headers
2092 cf_cv_abi_version=`$NCURSES_CONFIG --abi-version`
2096 for cf_name in MAJOR MINOR PATCH
2098 cat >conftest.$ac_ext <<CF_EOF
2099 #include <${cf_cv_ncurses_header:-curses.h}>
2100 AUTOCONF_$cf_name NCURSES_VERSION_$cf_name
2102 cf_try="$ac_cpp conftest.$ac_ext 2>&5 | fgrep AUTOCONF_$cf_name >conftest.out"
2104 if test -f conftest.out ; then
2105 cf_result=`cat conftest.out | sed -e "s/^.*AUTOCONF_$cf_name[[ ]][[ ]]*//"`
2106 eval NCURSES_$cf_name=\"$cf_result\"
2107 # cat conftest.$ac_ext
2112 cf_cv_abi_version=${NCURSES_MAJOR}
2116 cf_cv_rel_version=${NCURSES_MAJOR}.${NCURSES_MINOR}
2118 dnl Show the computed version, for logging
2119 cf_cv_timestamp=`date`
2121 AC_MSG_RESULT(Configuring NCURSES $cf_cv_rel_version ABI $cf_cv_abi_version ($cf_cv_timestamp))
2123 dnl We need these values in the generated headers
2124 AC_SUBST(NCURSES_MAJOR)
2125 AC_SUBST(NCURSES_MINOR)
2126 AC_SUBST(NCURSES_PATCH)
2128 dnl We need these values in the generated makefiles
2129 AC_SUBST(cf_cv_rel_version)
2130 AC_SUBST(cf_cv_abi_version)
2132 dnl FIXME - not needed for Ada95
2133 AC_SUBST(cf_cv_builtin_bool)
2134 AC_SUBST(cf_cv_header_stdbool_h)
2135 AC_SUBST(cf_cv_type_of_bool)dnl
2138 dnl ---------------------------------------------------------------------------
2139 dnl CF_NCURSES_CC_CHECK version: 4 updated: 2007/07/29 10:39:05
2140 dnl -------------------
2141 dnl Check if we can compile with ncurses' header file
2142 dnl $1 is the cache variable to set
2143 dnl $2 is the header-file to include
2144 dnl $3 is the root name (ncurses or ncursesw)
2145 AC_DEFUN([CF_NCURSES_CC_CHECK],[
2147 ]ifelse($3,ncursesw,[
2148 #define _XOPEN_SOURCE_EXTENDED
2149 #undef HAVE_LIBUTF8_H /* in case we used CF_UTF8_LIB */
2150 #define HAVE_LIBUTF8_H /* to force ncurses' header file to use cchar_t */
2153 #ifdef NCURSES_VERSION
2154 ]ifelse($3,ncursesw,[
2159 printf("%s\n", NCURSES_VERSION);
2171 dnl ---------------------------------------------------------------------------
2172 dnl CF_NCURSES_CONFIG version: 10 updated: 2012/10/06 08:57:51
2173 dnl -----------------
2174 dnl Tie together the configure-script macros for ncurses.
2175 dnl Prefer the "-config" script from ncurses 6.x, to simplify analysis.
2176 dnl Allow that to be overridden using the $NCURSES_CONFIG environment variable.
2178 dnl $1 is the root library name (default: "ncurses")
2179 AC_DEFUN([CF_NCURSES_CONFIG],
2181 cf_ncuconfig_root=ifelse($1,,ncurses,$1)
2183 echo "Looking for ${cf_ncuconfig_root}-config"
2185 CF_ACVERSION_CHECK(2.52,
2186 [AC_CHECK_TOOLS(NCURSES_CONFIG, ${cf_ncuconfig_root}6-config ${cf_ncuconfig_root}5-config, none)],
2187 [AC_PATH_PROGS(NCURSES_CONFIG, ${cf_ncuconfig_root}6-config ${cf_ncuconfig_root}5-config, none)])
2189 if test "$NCURSES_CONFIG" != none ; then
2191 CPPFLAGS="$CPPFLAGS `$NCURSES_CONFIG --cflags`"
2192 CF_ADD_LIBS(`$NCURSES_CONFIG --libs`)
2194 # even with config script, some packages use no-override for curses.h
2195 CF_CURSES_HEADER(ifelse($1,,ncurses,$1))
2197 dnl like CF_NCURSES_CPPFLAGS
2198 AC_DEFINE(NCURSES,1,[Define to 1 if we are using ncurses headers/libraries])
2200 dnl like CF_NCURSES_LIBS
2201 CF_UPPER(cf_nculib_ROOT,HAVE_LIB$cf_ncuconfig_root)
2202 AC_DEFINE_UNQUOTED($cf_nculib_ROOT)
2204 dnl like CF_NCURSES_VERSION
2205 cf_cv_ncurses_version=`$NCURSES_CONFIG --version`
2209 CF_NCURSES_CPPFLAGS(ifelse($1,,ncurses,$1))
2210 CF_NCURSES_LIBS(ifelse($1,,ncurses,$1))
2214 dnl ---------------------------------------------------------------------------
2215 dnl CF_NCURSES_CPPFLAGS version: 21 updated: 2012/10/06 08:57:51
2216 dnl -------------------
2217 dnl Look for the SVr4 curses clone 'ncurses' in the standard places, adjusting
2218 dnl the CPPFLAGS variable so we can include its header.
2220 dnl The header files may be installed as either curses.h, or ncurses.h (would
2221 dnl be obsolete, except that some packagers prefer this name to distinguish it
2222 dnl from a "native" curses implementation). If not installed for overwrite,
2223 dnl the curses.h file would be in an ncurses subdirectory (e.g.,
2224 dnl /usr/include/ncurses), but someone may have installed overwriting the
2225 dnl vendor's curses. Only very old versions (pre-1.9.2d, the first autoconf'd
2226 dnl version) of ncurses don't define either __NCURSES_H or NCURSES_VERSION in
2229 dnl If the installer has set $CFLAGS or $CPPFLAGS so that the ncurses header
2230 dnl is already in the include-path, don't even bother with this, since we cannot
2231 dnl easily determine which file it is. In this case, it has to be <curses.h>.
2233 dnl The optional parameter gives the root name of the library, in case it is
2234 dnl not installed as the default curses library. That is how the
2235 dnl wide-character version of ncurses is installed.
2236 AC_DEFUN([CF_NCURSES_CPPFLAGS],
2237 [AC_REQUIRE([CF_WITH_CURSES_DIR])
2239 AC_PROVIDE([CF_CURSES_CPPFLAGS])dnl
2240 cf_ncuhdr_root=ifelse($1,,ncurses,$1)
2242 test -n "$cf_cv_curses_dir" && \
2243 test "$cf_cv_curses_dir" != "no" && { \
2244 CF_ADD_INCDIR($cf_cv_curses_dir/include/$cf_ncuhdr_root)
2247 AC_CACHE_CHECK(for $cf_ncuhdr_root header in include-path, cf_cv_ncurses_h,[
2248 cf_header_list="$cf_ncuhdr_root/curses.h $cf_ncuhdr_root/ncurses.h"
2249 ( test "$cf_ncuhdr_root" = ncurses || test "$cf_ncuhdr_root" = ncursesw ) && cf_header_list="$cf_header_list curses.h ncurses.h"
2250 for cf_header in $cf_header_list
2252 CF_NCURSES_CC_CHECK(cf_cv_ncurses_h,$cf_header,$1)
2253 test "$cf_cv_ncurses_h" != no && break
2260 # some applications need this, but should check for NCURSES_VERSION
2261 AC_DEFINE(NCURSES,1,[Define to 1 if we are using ncurses headers/libraries])
2265 dnl ---------------------------------------------------------------------------
2266 dnl CF_NCURSES_HEADER version: 3 updated: 2012/10/06 08:57:51
2267 dnl -----------------
2268 dnl Find a "curses" header file, e.g,. "curses.h", or one of the more common
2269 dnl variations of ncurses' installs.
2271 dnl See also CF_CURSES_HEADER, which sets the same cache variable.
2272 AC_DEFUN([CF_NCURSES_HEADER],[
2274 if test "$cf_cv_ncurses_h" != no ; then
2275 cf_cv_ncurses_header=$cf_cv_ncurses_h
2278 AC_CACHE_CHECK(for $cf_ncuhdr_root include-path, cf_cv_ncurses_h2,[
2279 test -n "$verbose" && echo
2280 CF_HEADER_PATH(cf_search,$cf_ncuhdr_root)
2281 test -n "$verbose" && echo search path $cf_search
2282 cf_save2_CPPFLAGS="$CPPFLAGS"
2283 for cf_incdir in $cf_search
2285 CF_ADD_INCDIR($cf_incdir)
2290 CF_NCURSES_CC_CHECK(cf_cv_ncurses_h2,$cf_header,$1)
2291 if test "$cf_cv_ncurses_h2" != no ; then
2292 cf_cv_ncurses_h2=$cf_incdir/$cf_header
2293 test -n "$verbose" && echo $ac_n " ... found $ac_c" 1>&AC_FD_MSG
2296 test -n "$verbose" && echo " ... tested $cf_incdir/$cf_header" 1>&AC_FD_MSG
2298 CPPFLAGS="$cf_save2_CPPFLAGS"
2299 test "$cf_cv_ncurses_h2" != no && break
2301 test "$cf_cv_ncurses_h2" = no && AC_MSG_ERROR(not found)
2304 CF_DIRNAME(cf_1st_incdir,$cf_cv_ncurses_h2)
2305 cf_cv_ncurses_header=`basename $cf_cv_ncurses_h2`
2306 if test `basename $cf_1st_incdir` = $cf_ncuhdr_root ; then
2307 cf_cv_ncurses_header=$cf_ncuhdr_root/$cf_cv_ncurses_header
2309 CF_ADD_INCDIR($cf_1st_incdir)
2313 # Set definitions to allow ifdef'ing for ncurses.h
2315 case $cf_cv_ncurses_header in # (vi
2317 AC_DEFINE(HAVE_NCURSES_H,1,[Define to 1 if we have ncurses.h])
2321 case $cf_cv_ncurses_header in # (vi
2322 ncurses/curses.h|ncurses/ncurses.h)
2323 AC_DEFINE(HAVE_NCURSES_NCURSES_H,1,[Define to 1 if we have ncurses/ncurses.h])
2325 ncursesw/curses.h|ncursesw/ncurses.h)
2326 AC_DEFINE(HAVE_NCURSESW_NCURSES_H,1,[Define to 1 if we have ncursesw/ncurses.h])
2331 dnl ---------------------------------------------------------------------------
2332 dnl CF_NCURSES_LIBS version: 16 updated: 2010/11/20 17:02:38
2334 dnl Look for the ncurses library. This is a little complicated on Linux,
2335 dnl because it may be linked with the gpm (general purpose mouse) library.
2336 dnl Some distributions have gpm linked with (bsd) curses, which makes it
2337 dnl unusable with ncurses. However, we don't want to link with gpm unless
2338 dnl ncurses has a dependency, since gpm is normally set up as a shared library,
2339 dnl and the linker will record a dependency.
2341 dnl The optional parameter gives the root name of the library, in case it is
2342 dnl not installed as the default curses library. That is how the
2343 dnl wide-character version of ncurses is installed.
2344 AC_DEFUN([CF_NCURSES_LIBS],
2345 [AC_REQUIRE([CF_NCURSES_CPPFLAGS])
2347 cf_nculib_root=ifelse($1,,ncurses,$1)
2348 # This works, except for the special case where we find gpm, but
2349 # ncurses is in a nonstandard location via $LIBS, and we really want
2352 cf_ncurses_SAVE="$LIBS"
2353 AC_CHECK_LIB(gpm,Gpm_Open,
2354 [AC_CHECK_LIB(gpm,initscr,
2355 [LIBS="$cf_ncurses_SAVE"],
2356 [cf_ncurses_LIBS="-lgpm"])])
2358 case $host_os in #(vi
2360 # This is only necessary if you are linking against an obsolete
2361 # version of ncurses (but it should do no harm, since it's static).
2362 if test "$cf_nculib_root" = ncurses ; then
2363 AC_CHECK_LIB(mytinfo,tgoto,[cf_ncurses_LIBS="-lmytinfo $cf_ncurses_LIBS"])
2368 CF_ADD_LIBS($cf_ncurses_LIBS)
2370 if ( test -n "$cf_cv_curses_dir" && test "$cf_cv_curses_dir" != "no" )
2372 CF_ADD_LIBS(-l$cf_nculib_root)
2374 CF_FIND_LIBRARY($cf_nculib_root,$cf_nculib_root,
2375 [#include <${cf_cv_ncurses_header:-curses.h}>],
2380 if test -n "$cf_ncurses_LIBS" ; then
2381 AC_MSG_CHECKING(if we can link $cf_nculib_root without $cf_ncurses_LIBS)
2382 cf_ncurses_SAVE="$LIBS"
2383 for p in $cf_ncurses_LIBS ; do
2384 q=`echo $LIBS | sed -e "s%$p %%" -e "s%$p$%%"`
2385 if test "$q" != "$LIBS" ; then
2389 AC_TRY_LINK([#include <${cf_cv_ncurses_header:-curses.h}>],
2390 [initscr(); mousemask(0,0); tgoto((char *)0, 0, 0);],
2391 [AC_MSG_RESULT(yes)],
2393 LIBS="$cf_ncurses_SAVE"])
2396 CF_UPPER(cf_nculib_ROOT,HAVE_LIB$cf_nculib_root)
2397 AC_DEFINE_UNQUOTED($cf_nculib_ROOT)
2399 dnl ---------------------------------------------------------------------------
2400 dnl CF_NCURSES_VERSION version: 14 updated: 2012/10/06 08:57:51
2401 dnl ------------------
2402 dnl Check for the version of ncurses, to aid in reporting bugs, etc.
2403 dnl Call CF_CURSES_CPPFLAGS first, or CF_NCURSES_CPPFLAGS. We don't use
2404 dnl AC_REQUIRE since that does not work with the shell's if/then/else/fi.
2405 AC_DEFUN([CF_NCURSES_VERSION],
2407 AC_REQUIRE([CF_CURSES_CPPFLAGS])dnl
2408 AC_CACHE_CHECK(for ncurses version, cf_cv_ncurses_version,[
2409 cf_cv_ncurses_version=no
2413 #include <${cf_cv_ncurses_header:-curses.h}>
2417 FILE *fp = fopen("$cf_tempfile", "w");
2418 #ifdef NCURSES_VERSION
2419 # ifdef NCURSES_VERSION_PATCH
2420 fprintf(fp, "%s.%d\n", NCURSES_VERSION, NCURSES_VERSION_PATCH);
2422 fprintf(fp, "%s\n", NCURSES_VERSION);
2426 fprintf(fp, "old\n");
2431 ${cf_cv_main_return:-return}(0);
2433 cf_cv_ncurses_version=`cat $cf_tempfile`],,[
2435 # This will not work if the preprocessor splits the line after the
2436 # Autoconf token. The 'unproto' program does that.
2437 cat > conftest.$ac_ext <<EOF
2438 #include <${cf_cv_ncurses_header:-curses.h}>
2440 #ifdef NCURSES_VERSION
2441 Autoconf NCURSES_VERSION
2449 cf_try="$ac_cpp conftest.$ac_ext 2>&AC_FD_CC | grep '^Autoconf ' >conftest.out"
2451 if test -f conftest.out ; then
2452 cf_out=`cat conftest.out | sed -e 's%^Autoconf %%' -e 's%^[[^"]]*"%%' -e 's%".*%%'`
2453 test -n "$cf_out" && cf_cv_ncurses_version="$cf_out"
2459 test "$cf_cv_ncurses_version" = no || AC_DEFINE(NCURSES,1,[Define to 1 if we are using ncurses headers/libraries])
2461 dnl ---------------------------------------------------------------------------
2462 dnl CF_OBJ_SUBDIR version: 4 updated: 2002/02/23 20:38:31
2464 dnl Compute the object-directory name from the given model name
2465 AC_DEFUN([CF_OBJ_SUBDIR],
2468 libtool) $2='obj_lo' ;;
2469 normal) $2='objects' ;;
2470 debug) $2='obj_g' ;;
2471 profile) $2='obj_p' ;;
2473 case $cf_cv_system_name in #(vi
2481 dnl ---------------------------------------------------------------------------
2482 dnl CF_PATHSEP version: 6 updated: 2012/09/29 18:38:12
2484 dnl Provide a value for the $PATH and similar separator (or amend the value
2485 dnl as provided in autoconf 2.5x).
2486 AC_DEFUN([CF_PATHSEP],
2488 AC_MSG_CHECKING(for PATH separator)
2489 case $cf_cv_system_name in
2490 os2*) PATH_SEPARATOR=';' ;;
2491 *) ${PATH_SEPARATOR:=':'} ;;
2493 ifelse([$1],,,[$1=$PATH_SEPARATOR])
2494 AC_SUBST(PATH_SEPARATOR)
2495 AC_MSG_RESULT($PATH_SEPARATOR)
2497 dnl ---------------------------------------------------------------------------
2498 dnl CF_PATH_SYNTAX version: 14 updated: 2012/06/19 20:58:54
2500 dnl Check the argument to see that it looks like a pathname. Rewrite it if it
2501 dnl begins with one of the prefix/exec_prefix variables, and then again if the
2502 dnl result begins with 'NONE'. This is necessary to work around autoconf's
2503 dnl delayed evaluation of those symbols.
2504 AC_DEFUN([CF_PATH_SYNTAX],[
2505 if test "x$prefix" != xNONE; then
2506 cf_path_syntax="$prefix"
2508 cf_path_syntax="$ac_default_prefix"
2511 case ".[$]$1" in #(vi
2512 .\[$]\(*\)*|.\'*\'*) #(vi
2516 .[[a-zA-Z]]:[[\\/]]*) #(vi OS/2 EMX
2518 .\[$]{*prefix}*|.\[$]{*dir}*) #(vi
2520 case ".[$]$1" in #(vi
2522 $1=`echo [$]$1 | sed -e s%NONE%$cf_path_syntax%`
2527 $1=`echo [$]$1 | sed -e s%NONE%$cf_path_syntax%`
2530 ifelse([$2],,[AC_MSG_ERROR([expected a pathname, not \"[$]$1\"])],$2)
2534 dnl ---------------------------------------------------------------------------
2535 dnl CF_PKG_CONFIG version: 7 updated: 2011/04/29 04:53:22
2537 dnl Check for the package-config program, unless disabled by command-line.
2538 AC_DEFUN([CF_PKG_CONFIG],
2540 AC_MSG_CHECKING(if you want to use pkg-config)
2541 AC_ARG_WITH(pkg-config,
2542 [ --with-pkg-config{=path} enable/disable use of pkg-config],
2543 [cf_pkg_config=$withval],
2544 [cf_pkg_config=yes])
2545 AC_MSG_RESULT($cf_pkg_config)
2547 case $cf_pkg_config in #(vi
2552 CF_ACVERSION_CHECK(2.52,
2553 [AC_PATH_TOOL(PKG_CONFIG, pkg-config, none)],
2554 [AC_PATH_PROG(PKG_CONFIG, pkg-config, none)])
2561 test -z "$PKG_CONFIG" && PKG_CONFIG=none
2562 if test "$PKG_CONFIG" != none ; then
2563 CF_PATH_SYNTAX(PKG_CONFIG)
2566 AC_SUBST(PKG_CONFIG)
2568 dnl ---------------------------------------------------------------------------
2569 dnl CF_POSIX_C_SOURCE version: 8 updated: 2010/05/26 05:38:42
2570 dnl -----------------
2571 dnl Define _POSIX_C_SOURCE to the given level, and _POSIX_SOURCE if needed.
2573 dnl POSIX.1-1990 _POSIX_SOURCE
2574 dnl POSIX.1-1990 and _POSIX_SOURCE and
2575 dnl POSIX.2-1992 C-Language _POSIX_C_SOURCE=2
2577 dnl POSIX.1b-1993 _POSIX_C_SOURCE=199309L
2578 dnl POSIX.1c-1996 _POSIX_C_SOURCE=199506L
2579 dnl X/Open 2000 _POSIX_C_SOURCE=200112L
2582 dnl $1 is the nominal value for _POSIX_C_SOURCE
2583 AC_DEFUN([CF_POSIX_C_SOURCE],
2585 cf_POSIX_C_SOURCE=ifelse([$1],,199506L,[$1])
2587 cf_save_CFLAGS="$CFLAGS"
2588 cf_save_CPPFLAGS="$CPPFLAGS"
2590 CF_REMOVE_DEFINE(cf_trim_CFLAGS,$cf_save_CFLAGS,_POSIX_C_SOURCE)
2591 CF_REMOVE_DEFINE(cf_trim_CPPFLAGS,$cf_save_CPPFLAGS,_POSIX_C_SOURCE)
2593 AC_CACHE_CHECK(if we should define _POSIX_C_SOURCE,cf_cv_posix_c_source,[
2594 CF_MSG_LOG(if the symbol is already defined go no further)
2595 AC_TRY_COMPILE([#include <sys/types.h>],[
2596 #ifndef _POSIX_C_SOURCE
2599 [cf_cv_posix_c_source=no],
2600 [cf_want_posix_source=no
2601 case .$cf_POSIX_C_SOURCE in #(vi
2603 cf_cv_posix_c_source="-D_POSIX_C_SOURCE=$cf_POSIX_C_SOURCE"
2606 cf_cv_posix_c_source="-D_POSIX_C_SOURCE=$cf_POSIX_C_SOURCE"
2607 cf_want_posix_source=yes
2610 cf_want_posix_source=yes
2613 if test "$cf_want_posix_source" = yes ; then
2614 AC_TRY_COMPILE([#include <sys/types.h>],[
2615 #ifdef _POSIX_SOURCE
2618 cf_cv_posix_c_source="$cf_cv_posix_c_source -D_POSIX_SOURCE")
2620 CF_MSG_LOG(ifdef from value $cf_POSIX_C_SOURCE)
2621 CFLAGS="$cf_trim_CFLAGS"
2622 CPPFLAGS="$cf_trim_CPPFLAGS $cf_cv_posix_c_source"
2623 CF_MSG_LOG(if the second compile does not leave our definition intact error)
2624 AC_TRY_COMPILE([#include <sys/types.h>],[
2625 #ifndef _POSIX_C_SOURCE
2628 [cf_cv_posix_c_source=no])
2629 CFLAGS="$cf_save_CFLAGS"
2630 CPPFLAGS="$cf_save_CPPFLAGS"
2634 if test "$cf_cv_posix_c_source" != no ; then
2635 CFLAGS="$cf_trim_CFLAGS"
2636 CPPFLAGS="$cf_trim_CPPFLAGS"
2637 CF_ADD_CFLAGS($cf_cv_posix_c_source)
2641 dnl ---------------------------------------------------------------------------
2642 dnl CF_PROG_AR version: 1 updated: 2009/01/01 20:15:22
2644 dnl Check for archiver "ar".
2645 AC_DEFUN([CF_PROG_AR],[
2646 AC_CHECK_TOOL(AR, ar, ar)
2648 dnl ---------------------------------------------------------------------------
2649 dnl CF_PROG_AWK version: 1 updated: 2006/09/16 11:40:59
2651 dnl Check for awk, ensure that the check found something.
2652 AC_DEFUN([CF_PROG_AWK],
2655 test -z "$AWK" && AC_MSG_ERROR(No awk program found)
2657 dnl ---------------------------------------------------------------------------
2658 dnl CF_PROG_CC version: 3 updated: 2012/10/06 15:31:55
2660 dnl standard check for CC, plus followup sanity checks
2661 dnl $1 = optional parameter to pass to AC_PROG_CC to specify compiler name
2662 AC_DEFUN([CF_PROG_CC],[
2663 ifelse($1,,[AC_PROG_CC],[AC_PROG_CC($1)])
2665 CF_ACVERSION_CHECK(2.52,
2670 dnl ---------------------------------------------------------------------------
2671 dnl CF_PROG_CC_C_O version: 3 updated: 2010/08/14 18:25:37
2673 dnl Analogous to AC_PROG_CC_C_O, but more useful: tests only $CC, ensures that
2674 dnl the output file can be renamed, and allows for a shell variable that can
2675 dnl be used later. The parameter is either CC or CXX. The result is the
2677 dnl $cf_cv_prog_CC_c_o
2678 dnl $cf_cv_prog_CXX_c_o
2679 AC_DEFUN([CF_PROG_CC_C_O],
2680 [AC_REQUIRE([AC_PROG_CC])dnl
2681 AC_MSG_CHECKING([whether [$]$1 understands -c and -o together])
2682 AC_CACHE_VAL(cf_cv_prog_$1_c_o,
2684 cat > conftest.$ac_ext <<CF_EOF
2688 ${cf_cv_main_return:-return}(0);
2691 # We do the test twice because some compilers refuse to overwrite an
2692 # existing .o file with -o, though they will create one.
2693 ac_try='[$]$1 -c conftest.$ac_ext -o conftest2.$ac_objext >&AC_FD_CC'
2694 if AC_TRY_EVAL(ac_try) &&
2695 test -f conftest2.$ac_objext && AC_TRY_EVAL(ac_try);
2697 eval cf_cv_prog_$1_c_o=yes
2699 eval cf_cv_prog_$1_c_o=no
2703 if test $cf_cv_prog_$1_c_o = yes; then
2704 AC_MSG_RESULT([yes])
2709 dnl ---------------------------------------------------------------------------
2710 dnl CF_PROG_EGREP version: 1 updated: 2006/09/16 11:40:59
2712 dnl AC_PROG_EGREP was introduced in autoconf 2.53.
2713 dnl This macro adds a check to ensure the script found something.
2714 AC_DEFUN([CF_PROG_EGREP],
2715 [AC_CACHE_CHECK([for egrep], [ac_cv_prog_egrep],
2716 [if echo a | (grep -E '(a|b)') >/dev/null 2>&1
2717 then ac_cv_prog_egrep='grep -E'
2718 else ac_cv_prog_egrep='egrep'
2720 EGREP=$ac_cv_prog_egrep
2722 test -z "$EGREP" && AC_MSG_ERROR(No egrep program found)
2724 dnl ---------------------------------------------------------------------------
2725 dnl CF_PROG_EXT version: 11 updated: 2012/10/06 08:57:51
2727 dnl Compute $PROG_EXT, used for non-Unix ports, such as OS/2 EMX.
2728 AC_DEFUN([CF_PROG_EXT],
2730 AC_REQUIRE([CF_CHECK_CACHE])
2731 case $cf_cv_system_name in
2733 CFLAGS="$CFLAGS -Zmt"
2734 CPPFLAGS="$CPPFLAGS -D__ST_MT_ERRNO__"
2735 CXXFLAGS="$CXXFLAGS -Zmt"
2736 # autoconf's macro sets -Zexe and suffix both, which conflict:w
2737 LDFLAGS="$LDFLAGS -Zmt -Zcrtdll"
2747 test -n "$PROG_EXT" && AC_DEFINE_UNQUOTED(PROG_EXT,"$PROG_EXT",[Define to the program extension (normally blank)])
2749 dnl ---------------------------------------------------------------------------
2750 dnl CF_PROG_GNAT version: 2 updated: 2011/10/22 14:01:47
2752 dnl Check for gnatmake, ensure that it is complete.
2753 AC_DEFUN([CF_PROG_GNAT],[
2754 cf_ada_make=gnatmake
2755 AC_CHECK_PROG(gnat_exists, $cf_ada_make, yes, no)
2756 if test "$ac_cv_prog_gnat_exists" = no; then
2758 cf_cv_prog_gnat_correct=no
2761 AC_CHECK_PROG(M4_exists, m4, yes, no)
2762 if test "$ac_cv_prog_M4_exists" = no; then
2763 cf_cv_prog_gnat_correct=no
2764 echo Ada95 binding required program m4 not found. Ada95 binding disabled.
2766 if test "$cf_cv_prog_gnat_correct" = yes; then
2767 AC_MSG_CHECKING(if GNAT works)
2768 CF_GNAT_TRY_RUN([procedure conftest;],
2771 procedure conftest is
2773 Text_IO.Put ("Hello World");
2775 GNAT.OS_Lib.OS_Exit (0);
2776 end conftest;],[cf_cv_prog_gnat_correct=yes],[cf_cv_prog_gnat_correct=no])
2777 AC_MSG_RESULT($cf_cv_prog_gnat_correct)
2781 AC_SUBST(cf_ada_make)
2783 dnl ---------------------------------------------------------------------------
2784 dnl CF_PROG_LN_S version: 2 updated: 2010/08/14 18:25:37
2786 dnl Combine checks for "ln -s" and "ln -sf", updating $LN_S to include "-f"
2787 dnl option if it is supported.
2788 AC_DEFUN([CF_PROG_LN_S],[
2790 AC_MSG_CHECKING(if $LN_S -f options work)
2792 rm -f conf$$.src conf$$dst
2794 echo first >conf$$.src
2795 if $LN_S -f conf$$.src conf$$.dst 2>/dev/null; then
2800 rm -f conf$$.dst conf$$src
2801 AC_MSG_RESULT($cf_prog_ln_sf)
2803 test "$cf_prog_ln_sf" = yes && LN_S="$LN_S -f"
2805 dnl ---------------------------------------------------------------------------
2806 dnl CF_REMOVE_DEFINE version: 3 updated: 2010/01/09 11:05:50
2807 dnl ----------------
2808 dnl Remove all -U and -D options that refer to the given symbol from a list
2809 dnl of C compiler options. This works around the problem that not all
2810 dnl compilers process -U and -D options from left-to-right, so a -U option
2811 dnl cannot be used to cancel the effect of a preceding -D option.
2813 dnl $1 = target (which could be the same as the source variable)
2814 dnl $2 = source (including '$')
2815 dnl $3 = symbol to remove
2816 define([CF_REMOVE_DEFINE],
2819 sed -e 's/-[[UD]]'"$3"'\(=[[^ ]]*\)\?[[ ]]/ /g' \
2820 -e 's/-[[UD]]'"$3"'\(=[[^ ]]*\)\?[$]//g'`
2822 dnl ---------------------------------------------------------------------------
2823 dnl CF_REMOVE_LIB version: 1 updated: 2007/02/17 14:11:52
2825 dnl Remove the given library from the symbol
2827 dnl $1 = target (which could be the same as the source variable)
2828 dnl $2 = source (including '$')
2829 dnl $3 = library to remove
2830 define([CF_REMOVE_LIB],
2832 # remove $3 library from $2
2833 $1=`echo "$2" | sed -e 's/-l$3[[ ]]//g' -e 's/-l$3[$]//'`
2835 dnl ---------------------------------------------------------------------------
2836 dnl CF_SHARED_OPTS version: 72 updated: 2013/01/26 16:26:12
2839 dnl Attempt to determine the appropriate CC/LD options for creating a shared
2842 dnl Note: ${LOCAL_LDFLAGS} is used to link executables that will run within the
2843 dnl build-tree, i.e., by making use of the libraries that are compiled in ../lib
2844 dnl We avoid compiling-in a ../lib path for the shared library since that can
2845 dnl lead to unexpected results at runtime.
2846 dnl ${LOCAL_LDFLAGS2} has the same intention but assumes that the shared libraries
2847 dnl are compiled in ../../lib
2849 dnl The variable 'cf_cv_do_symlinks' is used to control whether we configure
2850 dnl to install symbolic links to the rel/abi versions of shared libraries.
2852 dnl The variable 'cf_cv_shlib_version' controls whether we use the rel or abi
2853 dnl version when making symbolic links.
2855 dnl The variable 'cf_cv_shlib_version_infix' controls whether shared library
2856 dnl version numbers are infix (ex: libncurses.<ver>.dylib) or postfix
2857 dnl (ex: libncurses.so.<ver>).
2859 dnl Some loaders leave 'so_locations' lying around. It's nice to clean up.
2860 AC_DEFUN([CF_SHARED_OPTS],
2862 AC_REQUIRE([CF_SUBST_NCURSES_VERSION])
2863 AC_REQUIRE([CF_LD_RPATH_OPT])
2867 INSTALL_LIB="-m 644"
2869 cf_cv_do_symlinks=no
2871 test "$cf_cv_enable_rpath" = yes && cf_ld_rpath_opt="$LD_RPATH_OPT"
2873 AC_MSG_CHECKING(if release/abi version should be used for shared libs)
2874 AC_ARG_WITH(shlib-version,
2875 [ --with-shlib-version=X Specify rel or abi version for shared libs],
2876 [test -z "$withval" && withval=auto
2877 case $withval in #(vi
2879 cf_cv_shlib_version=auto
2881 rel|abi|auto|no) #(vi
2882 cf_cv_shlib_version=$withval
2885 AC_MSG_ERROR([option value must be one of: rel, abi, auto or no])
2888 ],[cf_cv_shlib_version=auto])
2889 AC_MSG_RESULT($cf_cv_shlib_version)
2894 # Some less-capable ports of gcc support only -fpic
2896 if test "$GCC" = yes
2898 AC_MSG_CHECKING(which $CC option to use)
2899 cf_save_CFLAGS="$CFLAGS"
2900 for CC_SHARED_OPTS in -fPIC -fpic ''
2902 CFLAGS="$cf_save_CFLAGS $CC_SHARED_OPTS"
2903 AC_TRY_COMPILE([#include <stdio.h>],[int x = 1],[break],[])
2905 AC_MSG_RESULT($CC_SHARED_OPTS)
2906 CFLAGS="$cf_save_CFLAGS"
2909 cf_cv_shlib_version_infix=no
2911 case $cf_cv_system_name in #(vi
2912 aix4.[3-9]*|aix[[5-7]]*) #(vi
2913 if test "$GCC" = yes; then
2915 MK_SHARED_LIB='${CC} -shared -Wl,-brtl -Wl,-blibpath:${RPATH_LIST}:/usr/lib -o [$]@'
2917 # CC_SHARED_OPTS='-qpic=large -G'
2918 # perhaps "-bM:SRE -bnoentry -bexpall"
2919 MK_SHARED_LIB='${CC} -G -Wl,-brtl -Wl,-blibpath:${RPATH_LIST}:/usr/lib -o [$]@'
2923 MK_SHARED_LIB='${CC} ${CFLAGS} -o $[@] -Xlinker -soname=`basename $[@]` -nostart -e 0'
2927 MK_SHARED_LIB='sh ../mk_shared_lib.sh [$]@ [$]{CC} [$]{CFLAGS}'
2928 cf_cv_shlib_version=cygdll
2929 cf_cv_shlib_version_infix=cygdll
2930 cat >mk_shared_lib.sh <<-CF_EOF
2933 IMPORT_LIB=\`echo "\[$]1" | sed -e 's/cyg/lib/' -e 's/[[0-9]]*\.dll[$]/.dll.a/'\`
2936 Linking shared library
2937 ** SHARED_LIB \[$]SHARED_LIB
2938 ** IMPORT_LIB \[$]IMPORT_LIB
2940 exec \[$]* -shared -Wl,--out-implib=../lib/\[$]{IMPORT_LIB} -Wl,--export-all-symbols -o ../lib/\[$]{SHARED_LIB}
2942 chmod +x mk_shared_lib.sh
2945 cf_try_cflags="no-cpp-precomp"
2946 CC_SHARED_OPTS="-dynamic"
2947 MK_SHARED_LIB='${CC} ${CFLAGS} -dynamiclib -install_name ${libdir}/`basename $[@]` -compatibility_version ${ABI_VERSION} -current_version ${ABI_VERSION} -o $[@]'
2948 test "$cf_cv_shlib_version" = auto && cf_cv_shlib_version=abi
2949 cf_cv_shlib_version_infix=yes
2950 AC_CACHE_CHECK([if ld -search_paths_first works], cf_cv_ldflags_search_paths_first, [
2951 cf_save_LDFLAGS=$LDFLAGS
2952 LDFLAGS="$LDFLAGS -Wl,-search_paths_first"
2953 AC_TRY_LINK(, [int i;], cf_cv_ldflags_search_paths_first=yes, cf_cv_ldflags_search_paths_first=no)
2954 LDFLAGS=$cf_save_LDFLAGS])
2955 if test $cf_cv_ldflags_search_paths_first = yes; then
2956 LDFLAGS="$LDFLAGS -Wl,-search_paths_first"
2960 # HP-UX 8.07 ld lacks "+b" option used for libdir search-list
2961 if test "$GCC" != yes; then
2964 MK_SHARED_LIB='${LD} -b -o $[@]'
2965 INSTALL_LIB="-m 555"
2968 # (tested with gcc 2.7.2 -- I don't have c89)
2969 if test "$GCC" = yes; then
2970 LD_SHARED_OPTS='-Xlinker +b -Xlinker ${libdir}'
2973 LD_SHARED_OPTS='-Wl,+b,${libdir}'
2975 MK_SHARED_LIB='${LD} +b ${libdir} -b -o $[@]'
2976 # HP-UX shared libraries must be executable, and should be
2977 # readonly to exploit a quirk in the memory manager.
2978 INSTALL_LIB="-m 555"
2981 test "$cf_cv_shlib_version" = auto && cf_cv_shlib_version=rel
2982 if test "$cf_cv_shlib_version" = rel; then
2983 cf_shared_soname='`basename $@ .${REL_VERSION}`.${ABI_VERSION}'
2985 cf_shared_soname='`basename $@`'
2988 MK_SHARED_LIB='${CC} -shared -Wl,-rpath,${RPATH_LIST} -Wl,-h,'$cf_shared_soname' -o $@'
2991 if test "$cf_cv_enable_rpath" = yes ; then
2992 EXTRA_LDFLAGS="${cf_ld_rpath_opt}\${RPATH_LIST} $EXTRA_LDFLAGS"
2994 # tested with IRIX 5.2 and 'cc'.
2995 if test "$GCC" != yes; then
2996 CC_SHARED_OPTS='-KPIC'
2997 MK_SHARED_LIB='${CC} -shared -rdata_shared -soname `basename $[@]` -o $[@]'
2999 MK_SHARED_LIB='${CC} -shared -Wl,-soname,`basename $[@]` -o $[@]'
3001 cf_cv_rm_so_locs=yes
3003 linux*|gnu*|k*bsd*-gnu) #(vi
3004 if test "$DFT_LWR_MODEL" = "shared" ; then
3005 LOCAL_LDFLAGS="${LD_RPATH_OPT}\$(LOCAL_LIBDIR)"
3006 LOCAL_LDFLAGS2="$LOCAL_LDFLAGS"
3008 if test "$cf_cv_enable_rpath" = yes ; then
3009 EXTRA_LDFLAGS="${cf_ld_rpath_opt}\${RPATH_LIST} $EXTRA_LDFLAGS"
3012 MK_SHARED_LIB='${CC} ${CFLAGS} -shared -Wl,-soname,'$cf_cv_shared_soname',-stats,-lc -o $[@]'
3015 cf_cv_shlib_version=mingw
3016 cf_cv_shlib_version_infix=mingw
3018 MK_SHARED_LIB='sh ../mk_shared_lib.sh [$]@ [$]{CC} [$]{CFLAGS}'
3019 #MK_SHARED_LIB='${CC} ${CFLAGS} -mdll -Wl,-soname,'$cf_cv_shared_soname',-stats -o $[@]'
3020 #MK_SHARED_LIB='${DLLTOOL} --export-all-symbols --output-exp --output-lib $[@]'
3021 cat >mk_shared_lib.sh <<-CF_EOF
3024 IMPORT_LIB=\`echo "\[$]1" | sed -e 's/[[0-9]]*\.dll[$]/.dll.a/'\`
3027 Linking shared library
3028 ** SHARED_LIB \[$]SHARED_LIB
3029 ** IMPORT_LIB \[$]IMPORT_LIB
3031 exec \[$]* -shared -Wl,--out-implib=../lib/\[$]{IMPORT_LIB} -Wl,--export-all-symbols -o ../lib/\[$]{SHARED_LIB}
3033 chmod +x mk_shared_lib.sh
3035 openbsd[[2-9]].*|mirbsd*) #(vi
3036 if test "$DFT_LWR_MODEL" = "shared" ; then
3037 LOCAL_LDFLAGS="${LD_RPATH_OPT}\$(LOCAL_LIBDIR)"
3038 LOCAL_LDFLAGS2="$LOCAL_LDFLAGS"
3040 if test "$cf_cv_enable_rpath" = yes ; then
3041 EXTRA_LDFLAGS="${cf_ld_rpath_opt}\${RPATH_LIST} $EXTRA_LDFLAGS"
3043 CC_SHARED_OPTS="$CC_SHARED_OPTS -DPIC"
3045 MK_SHARED_LIB='${CC} ${CFLAGS} -shared -Wl,-Bshareable,-soname,'$cf_cv_shared_soname',-stats,-lc -o $[@]'
3047 nto-qnx*|openbsd*|freebsd[[12]].*) #(vi
3048 CC_SHARED_OPTS="$CC_SHARED_OPTS -DPIC"
3049 MK_SHARED_LIB='${LD} -Bshareable -o $[@]'
3050 test "$cf_cv_shlib_version" = auto && cf_cv_shlib_version=rel
3052 dragonfly*|freebsd*) #(vi
3053 CC_SHARED_OPTS="$CC_SHARED_OPTS -DPIC"
3054 if test "$DFT_LWR_MODEL" = "shared" && test "$cf_cv_enable_rpath" = yes ; then
3055 LOCAL_LDFLAGS="${cf_ld_rpath_opt}\$(LOCAL_LIBDIR)"
3056 LOCAL_LDFLAGS2="${cf_ld_rpath_opt}\${RPATH_LIST} $LOCAL_LDFLAGS"
3057 EXTRA_LDFLAGS="${cf_ld_rpath_opt}\${RPATH_LIST} $EXTRA_LDFLAGS"
3060 MK_SHARED_LIB='${LD} -shared -Bshareable -soname=`basename $[@]` -o $[@]'
3063 CC_SHARED_OPTS="$CC_SHARED_OPTS -DPIC"
3064 if test "$DFT_LWR_MODEL" = "shared" && test "$cf_cv_enable_rpath" = yes ; then
3065 LOCAL_LDFLAGS="${cf_ld_rpath_opt}\$(LOCAL_LIBDIR)"
3066 LOCAL_LDFLAGS2="$LOCAL_LDFLAGS"
3067 EXTRA_LDFLAGS="${cf_ld_rpath_opt}\${RPATH_LIST} $EXTRA_LDFLAGS"
3068 if test "$cf_cv_shlib_version" = auto; then
3069 if test -f /usr/libexec/ld.elf_so; then
3070 cf_cv_shlib_version=abi
3072 cf_cv_shlib_version=rel
3076 MK_SHARED_LIB='${CC} ${CFLAGS} -shared -Wl,-soname,'$cf_cv_shared_soname' -o $[@]'
3078 MK_SHARED_LIB='${LD} -shared -Bshareable -o $[@]'
3082 # tested with OSF/1 V3.2 and 'cc'
3083 # tested with OSF/1 V3.2 and gcc 2.6.3 (but the c++ demo didn't
3084 # link with shared libs).
3085 MK_SHARED_LIB='${LD} -set_version ${REL_VERSION}:${ABI_VERSION} -expect_unresolved "*" -shared -soname `basename $[@]`'
3086 case $host_os in #(vi
3088 MK_SHARED_LIB="${MK_SHARED_LIB} -msym"
3091 MK_SHARED_LIB="${MK_SHARED_LIB}"' -o $[@]'
3092 if test "$DFT_LWR_MODEL" = "shared" ; then
3093 LOCAL_LDFLAGS="${LD_RPATH_OPT}\$(LOCAL_LIBDIR)"
3094 LOCAL_LDFLAGS2="$LOCAL_LDFLAGS"
3096 cf_cv_rm_so_locs=yes
3098 sco3.2v5*) # (also uw2* and UW7: hops 13-Apr-98
3099 # tested with osr5.0.5
3100 if test "$GCC" != yes; then
3101 CC_SHARED_OPTS='-belf -KPIC'
3103 MK_SHARED_LIB='${LD} -dy -G -h `basename $[@] .${REL_VERSION}`.${ABI_VERSION} -o [$]@'
3104 if test "$cf_cv_enable_rpath" = yes ; then
3105 # only way is to set LD_RUN_PATH but no switch for it
3108 test "$cf_cv_shlib_version" = auto && cf_cv_shlib_version=rel
3109 LINK_PROGS='LD_RUN_PATH=${libdir}'
3110 LINK_TESTS='Pwd=`pwd`;LD_RUN_PATH=`dirname $${Pwd}`/lib'
3113 # tested with SunOS 4.1.1 and gcc 2.7.0
3114 if test "$GCC" != yes; then
3115 CC_SHARED_OPTS='-KPIC'
3117 MK_SHARED_LIB='${LD} -assert pure-text -o $[@]'
3118 test "$cf_cv_shlib_version" = auto && cf_cv_shlib_version=rel
3121 # tested with SunOS 5.5.1 (solaris 2.5.1) and gcc 2.7.2
3122 # tested with SunOS 5.10 (solaris 10) and gcc 3.4.3
3123 if test "$DFT_LWR_MODEL" = "shared" ; then
3124 LOCAL_LDFLAGS="-R \$(LOCAL_LIBDIR):\${libdir}"
3125 LOCAL_LDFLAGS2="$LOCAL_LDFLAGS"
3127 if test "$cf_cv_enable_rpath" = yes ; then
3128 EXTRA_LDFLAGS="-R \${libdir} $EXTRA_LDFLAGS"
3131 if test "$GCC" != yes; then
3132 cf_save_CFLAGS="$CFLAGS"
3133 for cf_shared_opts in -xcode=pic32 -xcode=pic13 -KPIC -Kpic -O
3135 CFLAGS="$cf_shared_opts $cf_save_CFLAGS"
3136 AC_TRY_COMPILE([#include <stdio.h>],[printf("Hello\n");],[break])
3138 CFLAGS="$cf_save_CFLAGS"
3139 CC_SHARED_OPTS=$cf_shared_opts
3140 MK_SHARED_LIB='${CC} -dy -G -h '$cf_cv_shared_soname' -o $[@]'
3142 MK_SHARED_LIB='${CC} -shared -dy -G -h '$cf_cv_shared_soname' -o $[@]'
3145 sysv5uw7*|unix_sv*) #(vi
3146 # tested with UnixWare 7.1.0 (gcc 2.95.2 and cc)
3147 if test "$GCC" != yes; then
3148 CC_SHARED_OPTS='-KPIC'
3150 MK_SHARED_LIB='${LD} -d y -G -o [$]@'
3153 CC_SHARED_OPTS='unknown'
3154 MK_SHARED_LIB='echo unknown'
3158 # This works if the last tokens in $MK_SHARED_LIB are the -o target.
3159 case "$cf_cv_shlib_version" in #(vi
3161 case "$MK_SHARED_LIB" in #(vi
3163 test "$cf_cv_do_symlinks" = no && cf_cv_do_symlinks=yes
3166 AC_MSG_WARN(ignored --with-shlib-version)
3172 if test -n "$cf_try_cflags"
3174 cat > conftest.$ac_ext <<EOF
3175 #line __oline__ "${as_me:-configure}"
3177 int main(int argc, char *argv[[]])
3180 return (argv[[argc-1]] == 0) ;
3183 cf_save_CFLAGS="$CFLAGS"
3184 for cf_opt in $cf_try_cflags
3186 CFLAGS="$cf_save_CFLAGS -$cf_opt"
3187 AC_MSG_CHECKING(if CFLAGS option -$cf_opt works)
3188 if AC_TRY_EVAL(ac_compile); then
3190 cf_save_CFLAGS="$CFLAGS"
3195 CFLAGS="$cf_save_CFLAGS"
3199 # RPATH_LIST is a colon-separated list of directories
3200 test -n "$cf_ld_rpath_opt" && MK_SHARED_LIB="$MK_SHARED_LIB $cf_ld_rpath_opt\${RPATH_LIST}"
3201 test -z "$RPATH_LIST" && RPATH_LIST="\${libdir}"
3203 CF_VERBOSE(CC_SHARED_OPTS: $CC_SHARED_OPTS)
3204 CF_VERBOSE(MK_SHARED_LIB: $MK_SHARED_LIB)
3206 AC_SUBST(CC_SHARED_OPTS)
3207 AC_SUBST(LD_RPATH_OPT)
3208 AC_SUBST(LD_SHARED_OPTS)
3209 AC_SUBST(MK_SHARED_LIB)
3210 AC_SUBST(LINK_PROGS)
3211 AC_SUBST(LINK_TESTS)
3212 AC_SUBST(EXTRA_LDFLAGS)
3213 AC_SUBST(LOCAL_LDFLAGS)
3214 AC_SUBST(LOCAL_LDFLAGS2)
3215 AC_SUBST(INSTALL_LIB)
3216 AC_SUBST(RPATH_LIST)
3218 dnl ---------------------------------------------------------------------------
3219 dnl CF_SHARED_SONAME version: 3 updated: 2008/09/08 18:34:43
3220 dnl ----------------
3221 dnl utility macro for CF_SHARED_OPTS, constructs "$cf_cv_shared_soname" for
3222 dnl substitution into MK_SHARED_LIB string for the "-soname" (or similar)
3225 dnl $1 is the default that should be used for "$cf_cv_shlib_version".
3226 dnl If missing, use "rel".
3227 define([CF_SHARED_SONAME],
3229 test "$cf_cv_shlib_version" = auto && cf_cv_shlib_version=ifelse($1,,rel,$1)
3230 if test "$cf_cv_shlib_version" = rel; then
3231 cf_cv_shared_soname='`basename $[@] .${REL_VERSION}`.${ABI_VERSION}'
3233 cf_cv_shared_soname='`basename $[@]`'
3236 dnl ---------------------------------------------------------------------------
3237 dnl CF_STRIP_G_OPT version: 3 updated: 2002/12/21 19:25:52
3239 dnl Remove "-g" option from the compiler options
3240 AC_DEFUN([CF_STRIP_G_OPT],
3241 [$1=`echo ${$1} | sed -e 's%-g %%' -e 's%-g$%%'`])dnl
3242 dnl ---------------------------------------------------------------------------
3243 dnl CF_SUBDIR_PATH version: 6 updated: 2010/04/21 06:20:50
3245 dnl Construct a search-list for a nonstandard header/lib-file
3246 dnl $1 = the variable to return as result
3247 dnl $2 = the package name
3248 dnl $3 = the subdirectory, e.g., bin, include or lib
3249 AC_DEFUN([CF_SUBDIR_PATH],
3253 CF_ADD_SUBDIR_PATH($1,$2,$3,/usr,$prefix)
3254 CF_ADD_SUBDIR_PATH($1,$2,$3,$prefix,NONE)
3255 CF_ADD_SUBDIR_PATH($1,$2,$3,/usr/local,$prefix)
3256 CF_ADD_SUBDIR_PATH($1,$2,$3,/opt,$prefix)
3257 CF_ADD_SUBDIR_PATH($1,$2,$3,[$]HOME,$prefix)
3259 dnl ---------------------------------------------------------------------------
3260 dnl CF_TERM_HEADER version: 3 updated: 2012/10/06 08:57:51
3262 dnl Look for term.h, which is part of X/Open curses. It defines the interface
3263 dnl to terminfo database. Usually it is in the same include-path as curses.h,
3264 dnl but some packagers change this, breaking various applications.
3265 AC_DEFUN([CF_TERM_HEADER],[
3266 AC_CACHE_CHECK(for terminfo header, cf_cv_term_header,[
3267 case ${cf_cv_ncurses_header} in #(vi
3268 */ncurses.h|*/ncursesw.h) #(vi
3269 cf_term_header=`echo "$cf_cv_ncurses_header" | sed -e 's%ncurses[[^.]]*\.h$%term.h%'`
3272 cf_term_header=term.h
3276 for cf_test in $cf_term_header "ncurses/term.h" "ncursesw/term.h"
3278 AC_TRY_COMPILE([#include <stdio.h>
3279 #include <${cf_cv_ncurses_header:-curses.h}>
3281 ],[int x = auto_left_margin],[
3282 cf_cv_term_header="$cf_test"],[
3283 cf_cv_term_header=unknown
3285 test "$cf_cv_term_header" != unknown && break
3289 # Set definitions to allow ifdef'ing to accommodate subdirectories
3291 case $cf_cv_term_header in # (vi
3293 AC_DEFINE(HAVE_TERM_H,1,[Define to 1 if we have term.h])
3297 case $cf_cv_term_header in # (vi
3298 ncurses/term.h) #(vi
3299 AC_DEFINE(HAVE_NCURSES_TERM_H,1,[Define to 1 if we have ncurses/term.h])
3302 AC_DEFINE(HAVE_NCURSESW_TERM_H,1,[Define to 1 if we have ncursesw/term.h])
3306 dnl ---------------------------------------------------------------------------
3307 dnl CF_TOP_BUILDDIR version: 1 updated: 2006/10/15 16:33:23
3309 dnl Define a top_builddir symbol, for applications that need an absolute path.
3310 AC_DEFUN([CF_TOP_BUILDDIR],
3313 AC_SUBST(top_builddir)
3315 dnl ---------------------------------------------------------------------------
3316 dnl CF_TRY_XOPEN_SOURCE version: 1 updated: 2011/10/30 17:09:50
3317 dnl -------------------
3318 dnl If _XOPEN_SOURCE is not defined in the compile environment, check if we
3319 dnl can define it successfully.
3320 AC_DEFUN([CF_TRY_XOPEN_SOURCE],[
3321 AC_CACHE_CHECK(if we should define _XOPEN_SOURCE,cf_cv_xopen_source,[
3325 #include <sys/types.h>
3327 #ifndef _XOPEN_SOURCE
3330 [cf_cv_xopen_source=no],
3331 [cf_save="$CPPFLAGS"
3332 CPPFLAGS="$CPPFLAGS -D_XOPEN_SOURCE=$cf_XOPEN_SOURCE"
3336 #include <sys/types.h>
3338 #ifdef _XOPEN_SOURCE
3341 [cf_cv_xopen_source=no],
3342 [cf_cv_xopen_source=$cf_XOPEN_SOURCE])
3347 if test "$cf_cv_xopen_source" != no ; then
3348 CF_REMOVE_DEFINE(CFLAGS,$CFLAGS,_XOPEN_SOURCE)
3349 CF_REMOVE_DEFINE(CPPFLAGS,$CPPFLAGS,_XOPEN_SOURCE)
3350 cf_temp_xopen_source="-D_XOPEN_SOURCE=$cf_cv_xopen_source"
3351 CF_ADD_CFLAGS($cf_temp_xopen_source)
3354 dnl ---------------------------------------------------------------------------
3355 dnl CF_UPPER version: 5 updated: 2001/01/29 23:40:59
3357 dnl Make an uppercase version of a variable
3358 dnl $1=uppercase($2)
3359 AC_DEFUN([CF_UPPER],
3361 $1=`echo "$2" | sed y%abcdefghijklmnopqrstuvwxyz./-%ABCDEFGHIJKLMNOPQRSTUVWXYZ___%`
3363 dnl ---------------------------------------------------------------------------
3364 dnl CF_UTF8_LIB version: 8 updated: 2012/10/06 08:57:51
3366 dnl Check for multibyte support, and if not found, utf8 compatibility library
3367 AC_DEFUN([CF_UTF8_LIB],
3369 AC_CACHE_CHECK(for multibyte character support,cf_cv_utf8_lib,[
3370 cf_save_LIBS="$LIBS"
3372 #include <stdlib.h>],[putwc(0,0);],
3373 [cf_cv_utf8_lib=yes],
3375 #include <libutf8.h>],[putwc(0,0);],utf8,
3376 [cf_cv_utf8_lib=add-on],
3377 [cf_cv_utf8_lib=no])
3380 # HAVE_LIBUTF8_H is used by ncurses if curses.h is shared between
3382 if test "$cf_cv_utf8_lib" = "add-on" ; then
3383 AC_DEFINE(HAVE_LIBUTF8_H,1,[Define to 1 if we should include libutf8.h])
3384 CF_ADD_INCDIR($cf_cv_header_path_utf8)
3385 CF_ADD_LIBDIR($cf_cv_library_path_utf8)
3386 CF_ADD_LIBS($cf_cv_library_file_utf8)
3389 dnl ---------------------------------------------------------------------------
3390 dnl CF_VERBOSE version: 3 updated: 2007/07/29 09:55:12
3392 dnl Use AC_VERBOSE w/o the warnings
3393 AC_DEFUN([CF_VERBOSE],
3394 [test -n "$verbose" && echo " $1" 1>&AC_FD_MSG
3397 dnl ---------------------------------------------------------------------------
3398 dnl CF_WEAK_SYMBOLS version: 1 updated: 2008/08/16 19:18:06
3400 dnl Check for compiler-support for weak symbols.
3401 dnl This works with "recent" gcc.
3402 AC_DEFUN([CF_WEAK_SYMBOLS],[
3403 AC_CACHE_CHECK(if $CC supports weak symbols,cf_cv_weak_symbols,[
3406 #include <stdio.h>],
3408 #if defined(__GNUC__)
3409 # if defined __USE_ISOC99
3410 # define _cat_pragma(exp) _Pragma(#exp)
3411 # define _weak_pragma(exp) _cat_pragma(weak name)
3413 # define _weak_pragma(exp)
3415 # define _declare(name) __extension__ extern __typeof__(name) name
3416 # define weak_symbol(name) _weak_pragma(name) _declare(name) __attribute__((weak))
3420 ],[cf_cv_weak_symbols=yes],[cf_cv_weak_symbols=no])
3423 dnl ---------------------------------------------------------------------------
3424 dnl CF_WITH_ADA_COMPILER version: 2 updated: 2010/06/26 17:35:58
3425 dnl --------------------
3426 dnl Command-line option to specify the Ada95 compiler.
3427 AC_DEFUN([CF_WITH_ADA_COMPILER],[
3428 AC_MSG_CHECKING(for ada-compiler)
3429 AC_ARG_WITH(ada-compiler,
3430 [ --with-ada-compiler=CMD specify Ada95 compiler command (default gnatmake)],
3431 [cf_ada_compiler=$withval],
3432 [cf_ada_compiler=gnatmake])
3433 AC_SUBST(cf_ada_compiler)
3434 AC_MSG_RESULT($cf_ada_compiler)
3436 dnl ---------------------------------------------------------------------------
3437 dnl CF_WITH_ADA_INCLUDE version: 2 updated: 2010/06/26 17:35:58
3438 dnl -------------------
3439 dnl Command-line option to specify where Ada includes will install.
3440 AC_DEFUN([CF_WITH_ADA_INCLUDE],[
3441 AC_MSG_CHECKING(for ada-include)
3442 CF_WITH_PATH(ada-include,
3443 [ --with-ada-include=DIR Ada includes are in DIR],
3445 PREFIX/share/ada/adainclude,
3446 [$]prefix/share/ada/adainclude)
3447 AC_SUBST(ADA_INCLUDE)
3448 AC_MSG_RESULT($ADA_INCLUDE)
3450 dnl ---------------------------------------------------------------------------
3451 dnl CF_WITH_ADA_OBJECTS version: 2 updated: 2010/06/26 17:35:58
3452 dnl -------------------
3453 dnl Command-line option to specify where Ada objects will install.
3454 AC_DEFUN([CF_WITH_ADA_OBJECTS],[
3455 AC_MSG_CHECKING(for ada-objects)
3456 CF_WITH_PATH(ada-objects,
3457 [ --with-ada-objects=DIR Ada objects are in DIR],
3459 PREFIX/lib/ada/adalib,
3460 [$]prefix/lib/ada/adalib)
3461 AC_SUBST(ADA_OBJECTS)
3462 AC_MSG_RESULT($ADA_OBJECTS)
3464 dnl ---------------------------------------------------------------------------
3465 dnl CF_WITH_ADA_SHAREDLIB version: 2 updated: 2010/06/26 17:35:58
3466 dnl ---------------------
3467 dnl Command-line option to specify if an Ada95 shared-library should be built,
3468 dnl and optionally what its soname should be.
3469 AC_DEFUN([CF_WITH_ADA_SHAREDLIB],[
3470 AC_MSG_CHECKING(if an Ada95 shared-library should be built)
3471 AC_ARG_WITH(ada-sharedlib,
3472 [ --with-ada-sharedlib=XX build Ada95 shared-library],
3473 [with_ada_sharedlib=$withval],
3474 [with_ada_sharedlib=no])
3475 AC_MSG_RESULT($with_ada_sharedlib)
3477 ADA_SHAREDLIB='lib$(LIB_NAME).so.1'
3478 MAKE_ADA_SHAREDLIB="#"
3480 if test "x$with_ada_sharedlib" != xno
3483 if test "x$with_ada_sharedlib" != xyes
3485 ADA_SHAREDLIB="$with_ada_sharedlib"
3489 AC_SUBST(ADA_SHAREDLIB)
3490 AC_SUBST(MAKE_ADA_SHAREDLIB)
3492 dnl ---------------------------------------------------------------------------
3493 dnl CF_WITH_CURSES_DIR version: 3 updated: 2010/11/20 17:02:38
3494 dnl ------------------
3495 dnl Wrapper for AC_ARG_WITH to specify directory under which to look for curses
3497 AC_DEFUN([CF_WITH_CURSES_DIR],[
3499 AC_MSG_CHECKING(for specific curses-directory)
3500 AC_ARG_WITH(curses-dir,
3501 [ --with-curses-dir=DIR directory in which (n)curses is installed],
3502 [cf_cv_curses_dir=$withval],
3503 [cf_cv_curses_dir=no])
3504 AC_MSG_RESULT($cf_cv_curses_dir)
3506 if ( test -n "$cf_cv_curses_dir" && test "$cf_cv_curses_dir" != "no" )
3508 CF_PATH_SYNTAX(withval)
3509 if test -d "$cf_cv_curses_dir"
3511 CF_ADD_INCDIR($cf_cv_curses_dir/include)
3512 CF_ADD_LIBDIR($cf_cv_curses_dir/lib)
3516 dnl ---------------------------------------------------------------------------
3517 dnl CF_WITH_LIB_PREFIX version: 1 updated: 2012/01/21 19:28:10
3518 dnl ------------------
3519 dnl Allow the library-prefix to be overridden. OS/2 EMX originally had no
3520 dnl "lib" prefix, e.g., because it used the dll naming convention.
3522 dnl $1 = variable to set
3523 AC_DEFUN([CF_WITH_LIB_PREFIX],
3525 AC_MSG_CHECKING(if you want to have a library-prefix)
3526 AC_ARG_WITH(lib-prefix,
3527 [ --with-lib-prefix override library-prefix],
3528 [with_lib_prefix=$withval],
3529 [with_lib_prefix=auto])
3530 AC_MSG_RESULT($with_lib_prefix)
3532 if test $with_lib_prefix = auto
3535 elif test $with_lib_prefix = no
3539 LIB_PREFIX=$with_lib_prefix
3542 dnl ---------------------------------------------------------------------------
3543 dnl CF_WITH_PATH version: 11 updated: 2012/09/29 15:04:19
3545 dnl Wrapper for AC_ARG_WITH to ensure that user supplies a pathname, not just
3546 dnl defaulting to yes/no.
3548 dnl $1 = option name
3550 dnl $3 = environment variable to set
3551 dnl $4 = default value, shown in the help-message, must be a constant
3552 dnl $5 = default value, if it's an expression & cannot be in the help-message
3554 AC_DEFUN([CF_WITH_PATH],
3555 [AC_ARG_WITH($1,[$2 ](default: ifelse([$4],,empty,[$4])),,
3556 ifelse([$4],,[withval="${$3}"],[withval="${$3:-ifelse([$5],,[$4],[$5])}"]))dnl
3557 if ifelse([$5],,true,[test -n "$5"]) ; then
3558 CF_PATH_SYNTAX(withval)
3563 dnl ---------------------------------------------------------------------------
3564 dnl CF_WITH_PKG_CONFIG_LIBDIR version: 2 updated: 2011/12/10 18:58:47
3565 dnl -------------------------
3566 dnl Allow the choice of the pkg-config library directory to be overridden.
3567 AC_DEFUN([CF_WITH_PKG_CONFIG_LIBDIR],[
3568 if test "$PKG_CONFIG" != none ; then
3569 AC_MSG_CHECKING(for $PKG_CONFIG library directory)
3570 AC_ARG_WITH(pkg-config-libdir,
3571 [ --with-pkg-config-libdir=XXX use given directory for installing pc-files],
3572 [PKG_CONFIG_LIBDIR=$withval],
3573 [PKG_CONFIG_LIBDIR=yes])
3575 case x$PKG_CONFIG_LIBDIR in #(vi
3579 # look for the library directory using the same prefix as the executable
3580 cf_path=`echo "$PKG_CONFIG" | sed -e 's,/[[^/]]*/[[^/]]*$,,'`
3581 case x`(arch) 2>/dev/null` in #(vi
3583 for cf_config in $cf_path/share $cf_path/lib64 $cf_path/lib32 $cf_path/lib
3585 if test -d $cf_config/pkgconfig
3587 PKG_CONFIG_LIBDIR=$cf_config/pkgconfig
3593 PKG_CONFIG_LIBDIR=$cf_path/lib/pkgconfig
3601 AC_MSG_RESULT($PKG_CONFIG_LIBDIR)
3604 AC_SUBST(PKG_CONFIG_LIBDIR)
3606 dnl ---------------------------------------------------------------------------
3607 dnl CF_WITH_PTHREAD version: 6 updated: 2012/10/06 17:41:51
3609 dnl Check for POSIX thread library.
3610 AC_DEFUN([CF_WITH_PTHREAD],
3612 AC_MSG_CHECKING(if you want to link with the pthread library)
3613 AC_ARG_WITH(pthread,
3614 [ --with-pthread use POSIX thread library],
3615 [with_pthread=$withval],
3617 AC_MSG_RESULT($with_pthread)
3619 if test "$with_pthread" != no ; then
3620 AC_CHECK_HEADER(pthread.h,[
3621 AC_DEFINE(HAVE_PTHREADS_H,1,[Define to 1 if we have pthreads.h header])
3623 for cf_lib_pthread in pthread c_r
3625 AC_MSG_CHECKING(if we can link with the $cf_lib_pthread library)
3626 cf_save_LIBS="$LIBS"
3627 CF_ADD_LIB($cf_lib_pthread)
3629 #include <pthread.h>
3631 int rc = pthread_create(0,0,0,0);
3632 int r2 = pthread_mutexattr_settype(0, 0);
3633 ],[with_pthread=yes],[with_pthread=no])
3634 LIBS="$cf_save_LIBS"
3635 AC_MSG_RESULT($with_pthread)
3636 test "$with_pthread" = yes && break
3639 if test "$with_pthread" = yes ; then
3640 CF_ADD_LIB($cf_lib_pthread)
3641 AC_DEFINE(HAVE_LIBPTHREADS,1,[Define to 1 if we have pthreads library])
3643 AC_MSG_ERROR(Cannot link with pthread library)
3648 dnl ---------------------------------------------------------------------------
3649 dnl CF_WITH_SYSTYPE version: 1 updated: 2013/01/26 16:26:12
3651 dnl For testing, override the derived host system-type which is used to decide
3652 dnl things such as the linker commands used to build shared libraries. This is
3653 dnl normally chosen automatically based on the type of system which you are
3654 dnl building on. We use it for testing the configure script.
3656 dnl This is different from the --host option: it is used only for testing parts
3657 dnl of the configure script which would not be reachable with --host since that
3658 dnl relies on the build environment being real, rather than mocked up.
3659 AC_DEFUN([CF_WITH_SYSTYPE],[
3660 CF_CHECK_CACHE([AC_CANONICAL_SYSTEM])
3661 AC_ARG_WITH(system-type,
3662 [ --with-system-type=XXX test: override derived host system-type],
3663 [AC_MSG_WARN(overriding system type to $withval)
3664 cf_cv_system_name=$withval
3668 dnl ---------------------------------------------------------------------------
3669 dnl CF_XOPEN_SOURCE version: 42 updated: 2012/01/07 08:26:49
3671 dnl Try to get _XOPEN_SOURCE defined properly that we can use POSIX functions,
3672 dnl or adapt to the vendor's definitions to get equivalent functionality,
3673 dnl without losing the common non-POSIX features.
3676 dnl $1 is the nominal value for _XOPEN_SOURCE
3677 dnl $2 is the nominal value for _POSIX_C_SOURCE
3678 AC_DEFUN([CF_XOPEN_SOURCE],[
3680 cf_XOPEN_SOURCE=ifelse([$1],,500,[$1])
3681 cf_POSIX_C_SOURCE=ifelse([$2],,199506L,[$2])
3684 case $host_os in #(vi
3686 cf_xopen_source="-D_ALL_SOURCE"
3691 darwin[[0-8]].*) #(vi
3692 cf_xopen_source="-D_APPLE_C_SOURCE"
3695 cf_xopen_source="-D_DARWIN_C_SOURCE"
3698 freebsd*|dragonfly*) #(vi
3699 # 5.x headers associate
3700 # _XOPEN_SOURCE=600 with _POSIX_C_SOURCE=200112L
3701 # _XOPEN_SOURCE=500 with _POSIX_C_SOURCE=199506L
3702 cf_POSIX_C_SOURCE=200112L
3704 cf_xopen_source="-D_BSD_TYPES -D__BSD_VISIBLE -D_POSIX_C_SOURCE=$cf_POSIX_C_SOURCE -D_XOPEN_SOURCE=$cf_XOPEN_SOURCE"
3707 cf_xopen_source="-D_HPUX_SOURCE -D_XOPEN_SOURCE=500"
3710 cf_xopen_source="-D_HPUX_SOURCE"
3713 cf_xopen_source="-D_SGI_SOURCE"
3716 linux*|gnu*|mint*|k*bsd*-gnu) #(vi
3720 # setting _XOPEN_SOURCE or _POSIX_SOURCE breaks <sys/select.h> and other headers which use u_int / u_short types
3722 CF_POSIX_C_SOURCE($cf_POSIX_C_SOURCE)
3725 cf_xopen_source="-D_NETBSD_SOURCE" # setting _XOPEN_SOURCE breaks IPv6 for lynx on NetBSD 1.6, breaks xterm, is not needed for ncursesw
3727 openbsd[[4-9]]*) #(vi
3728 # setting _XOPEN_SOURCE lower than 500 breaks g++ compile with wchar.h, needed for ncursesw
3729 cf_xopen_source="-D_BSD_SOURCE"
3733 # setting _XOPEN_SOURCE breaks xterm on OpenBSD 2.8, is not needed for ncursesw
3736 cf_xopen_source="-D_OSF_SOURCE"
3739 cf_xopen_source="-D_QNX_SOURCE"
3742 # setting _XOPEN_SOURCE breaks Lynx on SCO Unix / OpenServer
3745 cf_xopen_source="-D__EXTENSIONS__"
3749 CF_POSIX_C_SOURCE($cf_POSIX_C_SOURCE)
3753 if test -n "$cf_xopen_source" ; then
3754 CF_ADD_CFLAGS($cf_xopen_source)
3757 dnl In anything but the default case, we may have system-specific setting
3758 dnl which is still not guaranteed to provide all of the entrypoints that
3759 dnl _XOPEN_SOURCE would yield.
3760 if test -n "$cf_XOPEN_SOURCE" && test -z "$cf_cv_xopen_source" ; then
3761 AC_MSG_CHECKING(if _XOPEN_SOURCE really is set)
3762 AC_TRY_COMPILE([#include <stdlib.h>],[
3763 #ifndef _XOPEN_SOURCE
3766 [cf_XOPEN_SOURCE_set=yes],
3767 [cf_XOPEN_SOURCE_set=no])
3768 AC_MSG_RESULT($cf_XOPEN_SOURCE_set)
3769 if test $cf_XOPEN_SOURCE_set = yes
3771 AC_TRY_COMPILE([#include <stdlib.h>],[
3772 #if (_XOPEN_SOURCE - 0) < $cf_XOPEN_SOURCE
3775 [cf_XOPEN_SOURCE_set_ok=yes],
3776 [cf_XOPEN_SOURCE_set_ok=no])
3777 if test $cf_XOPEN_SOURCE_set_ok = no
3779 AC_MSG_WARN(_XOPEN_SOURCE is lower than requested)