1 sinclude(../config/accross.m4)
3 dnl See if stdbool.h properly defines bool and true/false.
4 AC_DEFUN(gcc_AC_HEADER_STDBOOL,
5 [AC_CACHE_CHECK([for working stdbool.h],
6 ac_cv_header_stdbool_h,
7 [AC_TRY_COMPILE([#include <stdbool.h>],
9 ac_cv_header_stdbool_h=yes, ac_cv_header_stdbool_h=no)])
10 if test $ac_cv_header_stdbool_h = yes; then
11 AC_DEFINE(HAVE_STDBOOL_H, 1,
12 [Define if you have a working <stdbool.h> header file.])
16 dnl See whether we can include both string.h and strings.h.
17 AC_DEFUN(gcc_AC_HEADER_STRING,
18 [AC_CACHE_CHECK([whether string.h and strings.h may both be included],
20 [AC_TRY_COMPILE([#include <string.h>
21 #include <strings.h>], , gcc_cv_header_string=yes, gcc_cv_header_string=no)])
22 if test $gcc_cv_header_string = yes; then
23 AC_DEFINE(STRING_WITH_STRINGS, 1, [Define if you can safely include both <string.h> and <strings.h>.])
27 dnl See whether we need a declaration for a function.
28 dnl The result is highly dependent on the INCLUDES passed in, so make sure
29 dnl to use a different cache variable name in this macro if it is invoked
30 dnl in a different context somewhere else.
31 dnl gcc_AC_CHECK_DECL(SYMBOL,
32 dnl [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND [, INCLUDES]]])
33 AC_DEFUN(gcc_AC_CHECK_DECL,
34 [AC_MSG_CHECKING([whether $1 is declared])
35 AC_CACHE_VAL(gcc_cv_have_decl_$1,
38 char *(*pfn) = (char *(*)) $1 ;
39 #endif], eval "gcc_cv_have_decl_$1=yes", eval "gcc_cv_have_decl_$1=no")])
40 if eval "test \"`echo '$gcc_cv_have_decl_'$1`\" = yes"; then
41 AC_MSG_RESULT(yes) ; ifelse([$2], , :, [$2])
43 AC_MSG_RESULT(no) ; ifelse([$3], , :, [$3])
47 dnl Check multiple functions to see whether each needs a declaration.
48 dnl Arrange to define HAVE_DECL_<FUNCTION> to 0 or 1 as appropriate.
49 dnl gcc_AC_CHECK_DECLS(SYMBOLS,
50 dnl [ACTION-IF-NEEDED [, ACTION-IF-NOT-NEEDED [, INCLUDES]]])
51 AC_DEFUN(gcc_AC_CHECK_DECLS,
55 ac_tr_decl=HAVE_DECL_`echo $ac_func | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
57 gcc_AC_CHECK_DECL($ac_func,
58 [AC_DEFINE_UNQUOTED($ac_tr_decl, 1) $2],
59 [AC_DEFINE_UNQUOTED($ac_tr_decl, 0) $3],
60 dnl It is possible that the include files passed in here are local headers
61 dnl which supply a backup declaration for the relevant prototype based on
62 dnl the definition of (or lack of) the HAVE_DECL_ macro. If so, this test
63 dnl will always return success. E.g. see libiberty.h's handling of
64 dnl `basename'. To avoid this, we define the relevant HAVE_DECL_ macro to
65 dnl 1 so that any local headers used do not provide their own prototype
72 dnl Automatically generate config.h entries via autoheader.
74 patsubst(translit([$1], [a-z], [A-Z]), [\w+],
75 [AC_DEFINE([HAVE_DECL_\&], 1,
76 [Define to 1 if we found this declaration otherwise define to 0.])])dnl
80 dnl See if the printf functions in libc support %p in format strings.
81 AC_DEFUN(gcc_AC_FUNC_PRINTF_PTR,
82 [AC_CACHE_CHECK(whether the printf functions support %p,
83 gcc_cv_func_printf_ptr,
84 [AC_TRY_RUN([#include <stdio.h>
89 char *p = buf, *q = NULL;
90 sprintf(buf, "%p", p);
91 sscanf(buf, "%p", &q);
93 }], gcc_cv_func_printf_ptr=yes, gcc_cv_func_printf_ptr=no,
94 gcc_cv_func_printf_ptr=no)
95 rm -f core core.* *.core])
96 if test $gcc_cv_func_printf_ptr = yes ; then
97 AC_DEFINE(HAVE_PRINTF_PTR, 1, [Define if printf supports "%p".])
101 dnl See if symbolic links work and if not, try to substitute either hard links or simple copy.
102 AC_DEFUN(gcc_AC_PROG_LN_S,
103 [AC_MSG_CHECKING(whether ln -s works)
104 AC_CACHE_VAL(gcc_cv_prog_LN_S,
105 [rm -f conftestdata_t
107 if ln -s conftestdata_f conftestdata_t 2>/dev/null
109 gcc_cv_prog_LN_S="ln -s"
111 if ln conftestdata_f conftestdata_t 2>/dev/null
118 rm -f conftestdata_f conftestdata_t
120 LN_S="$gcc_cv_prog_LN_S"
121 if test "$gcc_cv_prog_LN_S" = "ln -s"; then
124 if test "$gcc_cv_prog_LN_S" = "ln"; then
125 AC_MSG_RESULT([no, using ln])
127 AC_MSG_RESULT([no, and neither does ln, so using cp])
133 dnl See if hard links work and if not, try to substitute either symbolic links or simple copy.
134 AC_DEFUN(gcc_AC_PROG_LN,
135 [AC_MSG_CHECKING(whether ln works)
136 AC_CACHE_VAL(gcc_cv_prog_LN,
137 [rm -f conftestdata_t
139 if ln conftestdata_f conftestdata_t 2>/dev/null
143 if ln -s conftestdata_f conftestdata_t 2>/dev/null
145 gcc_cv_prog_LN="ln -s"
150 rm -f conftestdata_f conftestdata_t
153 if test "$gcc_cv_prog_LN" = "ln"; then
156 if test "$gcc_cv_prog_LN" = "ln -s"; then
157 AC_MSG_RESULT([no, using ln -s])
159 AC_MSG_RESULT([no, and neither does ln -s, so using cp])
165 dnl See whether the stage1 host compiler accepts the volatile keyword.
166 AC_DEFUN(gcc_AC_C_VOLATILE,
167 [AC_CACHE_CHECK([for volatile], gcc_cv_c_volatile,
168 [AC_TRY_COMPILE(, [volatile int foo;],
169 gcc_cv_c_volatile=yes, gcc_cv_c_volatile=no)])
170 if test $gcc_cv_c_volatile = yes ; then
171 AC_DEFINE(HAVE_VOLATILE, 1, [Define if your compiler understands volatile.])
175 dnl Check whether long double is supported. This differs from the
176 dnl built-in autoconf test in that it works for cross compiles.
177 AC_DEFUN(gcc_AC_C_LONG_DOUBLE,
178 [AC_CACHE_CHECK(for long double, gcc_cv_c_long_double,
179 [if test "$GCC" = yes; then
180 gcc_cv_c_long_double=yes
183 [/* The Stardent Vistra knows sizeof(long double), but does not support it. */
184 long double foo = 0.0;
185 /* On Ultrix 4.3 cc, long double is 4 and double is 8. */
186 switch (0) case 0: case (sizeof(long double) >= sizeof(double)):;],
187 gcc_cv_c_long_double=yes, gcc_cv_c_long_double=no)
189 if test $gcc_cv_c_long_double = yes; then
190 AC_DEFINE(HAVE_LONG_DOUBLE, 1,
191 [Define if your compiler supports the \`long double' type.])
195 dnl Check whether _Bool is built-in.
196 AC_DEFUN(gcc_AC_C__BOOL,
197 [AC_CACHE_CHECK(for built-in _Bool, gcc_cv_c__bool,
200 gcc_cv_c__bool=yes, gcc_cv_c__bool=no)
202 if test $gcc_cv_c__bool = yes; then
203 AC_DEFINE(HAVE__BOOL, 1, [Define if the \`_Bool' type is built-in.])
207 dnl Define MKDIR_TAKES_ONE_ARG if mkdir accepts only one argument instead
209 AC_DEFUN(gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG,
210 [AC_CACHE_CHECK([if mkdir takes one argument], gcc_cv_mkdir_takes_one_arg,
212 #include <sys/types.h>
213 #ifdef HAVE_SYS_STAT_H
214 # include <sys/stat.h>
221 #endif], [mkdir ("foo", 0);],
222 gcc_cv_mkdir_takes_one_arg=no, gcc_cv_mkdir_takes_one_arg=yes)])
223 if test $gcc_cv_mkdir_takes_one_arg = yes ; then
224 AC_DEFINE(MKDIR_TAKES_ONE_ARG, 1, [Define if host mkdir takes a single argument.])
228 AC_DEFUN(gcc_AC_PROG_INSTALL,
229 [AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT])dnl
230 # Find a good install program. We prefer a C program (faster),
231 # so one script is as good as another. But avoid the broken or
232 # incompatible versions:
233 # SysV /etc/install, /usr/sbin/install
234 # SunOS /usr/etc/install
237 # AFS /usr/afsws/bin/install, which mishandles nonexistent args
238 # SVR4 /usr/ucb/install, which tries to use the nonexistent group "staff"
239 # ./install, which can be erroneously created by make from ./install.sh.
240 AC_MSG_CHECKING(for a BSD compatible install)
241 if test -z "$INSTALL"; then
242 AC_CACHE_VAL(ac_cv_path_install,
243 [ IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="${IFS}:"
244 for ac_dir in $PATH; do
245 # Account for people who put trailing slashes in PATH elements.
247 /|./|.//|/etc/*|/usr/sbin/*|/usr/etc/*|/sbin/*|/usr/afsws/bin/*|/usr/ucb/*) ;;
249 # OSF1 and SCO ODT 3.0 have their own names for install.
250 for ac_prog in ginstall scoinst install; do
251 if test -f $ac_dir/$ac_prog; then
252 if test $ac_prog = install &&
253 grep dspmsg $ac_dir/$ac_prog >/dev/null 2>&1; then
254 # AIX install. It has an incompatible calling convention.
255 # OSF/1 installbsd also uses dspmsg, but is usable.
258 ac_cv_path_install="$ac_dir/$ac_prog -c"
268 if test "${ac_cv_path_install+set}" = set; then
269 INSTALL="$ac_cv_path_install"
271 # As a last resort, use the slow shell script. We don't cache a
272 # path for INSTALL within a source directory, because that will
273 # break other packages using the cache if that directory is
274 # removed, or if the path is relative.
275 INSTALL="$ac_install_sh"
278 dnl We do special magic for INSTALL instead of AC_SUBST, to get
279 dnl relative paths right.
280 AC_MSG_RESULT($INSTALL)
283 # Use test -z because SunOS4 sh mishandles braces in ${var-val}.
284 # It thinks the first close brace ends the variable substitution.
285 test -z "$INSTALL_PROGRAM" && INSTALL_PROGRAM='${INSTALL}'
286 AC_SUBST(INSTALL_PROGRAM)dnl
288 test -z "$INSTALL_DATA" && INSTALL_DATA='${INSTALL} -m 644'
289 AC_SUBST(INSTALL_DATA)dnl
293 dnl We require the gnatbind program, and a compiler driver that
294 dnl understands Ada. The user may set the driver name explicitly
295 dnl with ADAC; also, the user's CC setting is tried. Failing that,
296 dnl we try gcc and cc, then a sampling of names known to be used for
297 dnl the Ada driver on various systems.
299 dnl Sets the shell variable have_gnat to yes or no as appropriate, and
300 dnl substitutes GNATBIND and ADAC.
301 AC_DEFUN([gcc_AC_PROG_GNAT],
302 [AC_REQUIRE([AC_CHECK_TOOL_PREFIX])
303 AC_CHECK_TOOL(GNATBIND, gnatbind, no)
304 AC_CACHE_CHECK([for compiler driver that understands Ada],
306 [cat >conftest.adb <<EOF
307 procedure conftest is begin null; end conftest;
310 # Have to do ac_tool_prefix and user overrides by hand.
311 for cand in ${ADAC+"$ADAC"} ${CC+"$CC"} \
312 ${ac_tool_prefix}gcc gcc \
313 ${ac_tool_prefix}cc cc \
314 ${ac_tool_prefix}gnatgcc gnatgcc \
315 ${ac_tool_prefix}gnatcc gnatcc \
316 ${ac_tool_prefix}adagcc adagcc \
317 ${ac_tool_prefix}adacc adacc ; do
318 # There is a bug in all released versions of GCC which causes the
319 # driver to exit successfully when the appropriate language module
320 # has not been installed. This is fixed in 2.95.4, 3.0.2, and 3.1.
321 # Therefore we must check for the error message as well as an
323 errors=`($cand -c conftest.adb) 2>&1 || echo failure`
324 if test x"$errors" = x; then
325 gcc_cv_prog_adac=$cand
330 ADAC=$gcc_cv_prog_adac
333 if test x$GNATBIND != xno && test x$ADAC != xno; then
341 dnl This test replaces the one in autoconf.
342 dnl Currently this macro should have the same name as the autoconf macro
343 dnl because gettext's gettext.m4 (distributed in the automake package)
344 dnl still uses it. Otherwise, the use in gettext.m4 makes autoheader
345 dnl give these diagnostics:
346 dnl configure.in:556: AC_TRY_COMPILE was called before AC_ISC_POSIX
347 dnl configure.in:556: AC_TRY_RUN was called before AC_ISC_POSIX
349 undefine([AC_ISC_POSIX])
350 AC_DEFUN(AC_ISC_POSIX,
352 dnl This test replaces the obsolescent AC_ISC_POSIX kludge.
353 AC_CHECK_LIB(cposix, strerror, [LIBS="$LIBS -lcposix"])
358 dnl GCC_PATH_PROG(VARIABLE, PROG-TO-CHECK-FOR [, VALUE-IF-NOT-FOUND [, PATH]])
359 dnl like AC_PATH_PROG but use other cache variables
360 AC_DEFUN(GCC_PATH_PROG,
361 [# Extract the first word of "$2", so it can be a program name with args.
362 set dummy $2; ac_word=[$]2
363 AC_MSG_CHECKING([for $ac_word])
364 AC_CACHE_VAL(gcc_cv_path_$1,
367 gcc_cv_path_$1="[$]$1" # Let the user override the test with a path.
370 gcc_cv_path_$1="[$]$1" # Let the user override the test with a dos path.
373 IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS=":"
374 dnl $ac_dummy forces splitting on constant user-supplied paths.
375 dnl POSIX.2 word splitting is done only on the output of word expansions,
376 dnl not every word. This closes a longstanding sh security hole.
377 ac_dummy="ifelse([$4], , $PATH, [$4])"
378 for ac_dir in $ac_dummy; do
379 test -z "$ac_dir" && ac_dir=.
380 if test -f $ac_dir/$ac_word; then
381 gcc_cv_path_$1="$ac_dir/$ac_word"
386 dnl If no 3rd arg is given, leave the cache variable unset,
387 dnl so GCC_PATH_PROGS will keep looking.
388 ifelse([$3], , , [ test -z "[$]gcc_cv_path_$1" && gcc_cv_path_$1="$3"
393 if test -n "[$]$1"; then
401 # Check whether mmap can map an arbitrary page from /dev/zero or with
402 # MAP_ANONYMOUS, without MAP_FIXED.
403 AC_DEFUN([AC_FUNC_MMAP_ANYWHERE],
404 [AC_CHECK_FUNCS(getpagesize)
405 # The test program for the next two tests is the same except for one
407 changequote({{{,}}})dnl
408 {{{cat >ct-mmap.inc <<'EOF'
409 #include <sys/types.h>
410 #include <sys/mman.h>
416 #if !defined (MAP_ANONYMOUS) && defined (MAP_ANON)
417 # define MAP_ANONYMOUS MAP_ANON
420 /* This mess was copied from the GNU getpagesize.h. */
421 #ifndef HAVE_GETPAGESIZE
422 # ifdef HAVE_UNISTD_H
426 /* Assume that all systems that can run configure have sys/param.h. */
427 # ifndef HAVE_SYS_PARAM_H
428 # define HAVE_SYS_PARAM_H 1
432 # define getpagesize() sysconf(_SC_PAGESIZE)
433 # else /* no _SC_PAGESIZE */
434 # ifdef HAVE_SYS_PARAM_H
435 # include <sys/param.h>
436 # ifdef EXEC_PAGESIZE
437 # define getpagesize() EXEC_PAGESIZE
438 # else /* no EXEC_PAGESIZE */
440 # define getpagesize() NBPG * CLSIZE
443 # endif /* no CLSIZE */
446 # define getpagesize() NBPC
449 # define getpagesize() PAGESIZE
450 # endif /* PAGESIZE */
451 # endif /* no NBPC */
452 # endif /* no NBPG */
453 # endif /* no EXEC_PAGESIZE */
454 # else /* no HAVE_SYS_PARAM_H */
455 # define getpagesize() 8192 /* punt totally */
456 # endif /* no HAVE_SYS_PARAM_H */
457 # endif /* no _SC_PAGESIZE */
459 #endif /* no HAVE_GETPAGESIZE */
462 # define MAP_FAILED -1
466 #define perror_exit(str, val) \
467 do { perror(str); exit(val); } while (0)
469 /* Some versions of cygwin mmap require that munmap is called with the
470 same parameters as mmap. GCC expects that this is not the case.
471 Test for various forms of this problem. Warning - icky signal games. */
473 static sigset_t unblock_sigsegv;
483 return (char *) mmap (0, size, PROT_READ|PROT_WRITE,
484 MAP_PRIVATE|MAP_ANONYMOUS, -1, 0);
486 return (char *) mmap (0, size, PROT_READ|PROT_WRITE,
487 MAP_PRIVATE, devzero, 0);
495 sigprocmask (SIG_UNBLOCK, &unblock_sigsegv, 0);
499 /* Basic functionality test. */
503 char *x = anonmap (pg);
504 if (x == (char *) MAP_FAILED)
505 perror_exit("test 0 mmap", 2);
509 if (munmap(x, pg) < 0)
510 perror_exit("test 0 munmap", 3);
513 /* 1. If we map a 2-page region and unmap its second page, the first page
518 char *x = anonmap (pg * 2);
519 if (x == (char *)MAP_FAILED)
520 perror_exit ("test 1 mmap", 4);
522 signal (SIGSEGV, sigsegv);
524 perror_exit ("test 1 fault", 5);
529 if (munmap (x + pg, pg) < 0)
530 perror_exit ("test 1 munmap 1", 6);
536 perror_exit ("test 1 no fault", 7);
538 if (munmap (x, pg) < 0)
539 perror_exit ("test 1 munmap 2", 8);
542 /* 2. If we map a 2-page region and unmap its first page, the second
547 char *x = anonmap (pg * 2);
548 if (x == (char *)MAP_FAILED)
549 perror_exit ("test 2 mmap", 9);
551 signal (SIGSEGV, sigsegv);
553 perror_exit ("test 2 fault", 10);
558 if (munmap (x, pg) < 0)
559 perror_exit ("test 2 munmap 1", 11);
566 perror_exit ("test 2 no fault", 12);
569 if (munmap (x+pg, pg) < 0)
570 perror_exit ("test 2 munmap 2", 13);
573 /* 3. If we map two adjacent 1-page regions and unmap them both with
574 one munmap, both must go away.
576 Getting two adjacent 1-page regions with two mmap calls is slightly
577 tricky. All OS's tested skip over already-allocated blocks; therefore
578 we have been careful to unmap all allocated regions in previous tests.
579 HP/UX allocates pages backward in memory. No OS has yet been observed
580 to be so perverse as to leave unmapped space between consecutive calls
589 if (x == (char *)MAP_FAILED)
590 perror_exit ("test 3 mmap 1", 14);
592 if (y == (char *)MAP_FAILED)
593 perror_exit ("test 3 mmap 2", 15);
601 fprintf (stderr, "test 3 nonconsecutive pages - %lx, %lx\n",
602 (unsigned long)x, (unsigned long)y);
607 signal (SIGSEGV, sigsegv);
609 perror_exit ("test 3 fault", 17);
614 if (munmap (x, pg*2) < 0)
615 perror_exit ("test 3 munmap", 18);
620 perror_exit ("test 3 no fault 1", 19);
623 signal (SIGSEGV, sigsegv);
627 perror_exit ("test 3 no fault 2", 20);
634 sigemptyset (&unblock_sigsegv);
635 sigaddset (&unblock_sigsegv, SIGSEGV);
638 devzero = open ("/dev/zero", O_RDWR);
640 perror_exit ("open /dev/zero", 1);
653 AC_CACHE_CHECK(for working mmap from /dev/zero,
654 ac_cv_func_mmap_dev_zero,
656 [#include "ct-mmap.inc"],
657 ac_cv_func_mmap_dev_zero=yes,
659 then ac_cv_func_mmap_dev_zero=no
660 else ac_cv_func_mmap_dev_zero=buggy
662 # When cross-building, assume that this works, unless we know it
663 # doesn't. Of course, we have no way of knowing if there even is a /dev/zero
664 # on the host, let alone whether mmap will work on it.
666 cygwin* | win32 | pe | mingw* ) ac_cv_func_mmap_dev_zero=buggy ;;
667 darwin* ) ac_cv_func_mmap_dev_zero=no ;;
668 * ) ac_cv_func_mmap_dev_zero=yes ;;
671 if test $ac_cv_func_mmap_dev_zero = yes; then
672 AC_DEFINE(HAVE_MMAP_DEV_ZERO, 1,
673 [Define if mmap can get us zeroed pages from /dev/zero.])
676 AC_CACHE_CHECK([for working mmap with MAP_ANON(YMOUS)],
677 ac_cv_func_mmap_anon,
679 [#define USE_MAP_ANON
680 #include "ct-mmap.inc"],
681 ac_cv_func_mmap_anon=yes,
683 then ac_cv_func_mmap_anon=no
684 else ac_cv_func_mmap_anon=buggy
686 # Unlike /dev/zero, it is not safe to assume MAP_ANON(YMOUS) works
687 # just because it's there. Some SCO Un*xen define it but don't implement it.
689 darwin* ) ac_cv_func_mmap_anon=yes ;;
690 * ) ac_cv_func_mmap_anon=no ;;
693 if test $ac_cv_func_mmap_anon = yes; then
694 AC_DEFINE(HAVE_MMAP_ANON, 1,
695 [Define if mmap can get us zeroed pages using MAP_ANON(YMOUS).])
700 # Check whether mmap can map a plain file, without MAP_FIXED.
701 AC_DEFUN([AC_FUNC_MMAP_FILE],
702 [AC_CACHE_CHECK(for working mmap of a file, ac_cv_func_mmap_file,
703 [# Create a file one thousand bytes long.
704 for i in 1 2 3 4 5 6 7 8 9 0
705 do for j in 1 2 3 4 5 6 7 8 9 0
708 done > conftestdata$$
711 /* Test by Zack Weinberg. Modified from MMAP_ANYWHERE test by
712 Richard Henderson and Alexandre Oliva.
713 Check whether read-only mmap of a plain file works. */
714 #include <sys/types.h>
715 #include <sys/stat.h>
717 #include <sys/mman.h>
725 fd = open("conftestdata$$", O_RDONLY);
732 x = (char*)mmap(0, st.st_size, PROT_READ, MAP_PRIVATE, fd, 0);
733 if (x == (char *) -1)
736 if (x[0] != '1' || x[1] != ' ' || x[2] != '1' || x[3] != ' ')
739 if (munmap(x, st.st_size) < 0)
743 }], ac_cv_func_mmap_file=yes, ac_cv_func_mmap_file=no,
745 darwin* ) ac_cv_func_mmap_file=yes ;;
746 * ) ac_cv_func_mmap_file=no ;;
748 if test $ac_cv_func_mmap_file = yes; then
749 AC_DEFINE(HAVE_MMAP_FILE, 1,
750 [Define if read-only mmap of a plain file works.])
754 dnl Locate a program and check that its version is acceptable.
755 dnl AC_PROG_CHECK_VER(var, name, version-switch,
756 dnl version-extract-regexp, version-glob)
757 AC_DEFUN(gcc_AC_CHECK_PROG_VER,
758 [AC_CHECK_PROG([$1], [$2], [$2])
759 if test -n "[$]$1"; then
760 # Found it, now check the version.
761 AC_CACHE_CHECK(for modern $2, gcc_cv_prog_$2_modern,
762 [changequote(<<,>>)dnl
763 ac_prog_version=`<<$>>$1 $3 2>&1 |
764 sed -n 's/^.*patsubst(<<$4>>,/,\/).*$/\1/p'`
766 echo "configure:__oline__: version of $2 is $ac_prog_version" >&AC_FD_CC
767 changequote(<<,>>)dnl
768 case $ac_prog_version in
769 '') gcc_cv_prog_$2_modern=no;;
771 gcc_cv_prog_$2_modern=yes;;
772 *) gcc_cv_prog_$2_modern=no;;
777 gcc_cv_prog_$2_modern=no
781 dnl Determine if enumerated bitfields are unsigned. ISO C says they can
782 dnl be either signed or unsigned.
784 AC_DEFUN(gcc_AC_C_ENUM_BF_UNSIGNED,
785 [AC_CACHE_CHECK(for unsigned enumerated bitfields, gcc_cv_enum_bf_unsigned,
786 [AC_TRY_RUN(#include <stdlib.h>
787 enum t { BLAH = 128 } ;
788 struct s_t { enum t member : 8; } s ;
792 if (s.member < 0) exit(1);
795 }, gcc_cv_enum_bf_unsigned=yes, gcc_cv_enum_bf_unsigned=no, gcc_cv_enum_bf_unsigned=yes)])
796 if test $gcc_cv_enum_bf_unsigned = yes; then
797 AC_DEFINE(ENUM_BITFIELDS_ARE_UNSIGNED, 1,
798 [Define if enumerated bitfields are treated as unsigned values.])
801 dnl Probe number of bits in a byte.
802 dnl Note C89 requires CHAR_BIT >= 8.
804 AC_DEFUN(gcc_AC_C_CHAR_BIT,
805 [AC_CACHE_CHECK(for CHAR_BIT, gcc_cv_decl_char_bit,
807 [#ifdef HAVE_LIMITS_H
812 #endif], gcc_cv_decl_char_bit=yes, gcc_cv_decl_char_bit=no)
814 if test $gcc_cv_decl_char_bit = no; then
815 AC_CACHE_CHECK(number of bits in a byte, gcc_cv_c_nbby,
818 while test $i -lt 65; do
821 case (unsigned char)((unsigned long)1 << $i) == ((unsigned long)1 << $i):
822 case (unsigned char)((unsigned long)1<<($i-1)) == ((unsigned long)1<<($i-1)):
824 [gcc_cv_c_nbby=$i; break])
827 test -z "$gcc_cv_c_nbby" && gcc_cv_c_nbby=failed
829 if test $gcc_cv_c_nbby = failed; then
830 AC_MSG_ERROR(cannot determine number of bits in a byte)
832 AC_DEFINE_UNQUOTED(CHAR_BIT, $gcc_cv_c_nbby,
833 [Define as the number of bits in a byte, if \`limits.h' doesn't.])
837 dnl Checking for long long.
838 dnl By Caolan McNamara <caolan@skynet.ie>
839 dnl Added check for __int64, Zack Weinberg <zackw@stanford.edu>
841 AC_DEFUN([gcc_AC_C_LONG_LONG],
842 [AC_CACHE_CHECK(for long long int, ac_cv_c_long_long,
843 [AC_TRY_COMPILE(,[long long int i;],
844 ac_cv_c_long_long=yes,
845 ac_cv_c_long_long=no)])
846 if test $ac_cv_c_long_long = yes; then
847 AC_DEFINE(HAVE_LONG_LONG, 1,
848 [Define if your compiler supports the \`long long' type.])
850 AC_CACHE_CHECK(for __int64, ac_cv_c___int64,
851 [AC_TRY_COMPILE(,[__int64 i;],
853 ac_cv_c___int64=no)])
854 if test $ac_cv_c___int64 = yes; then
855 AC_DEFINE(HAVE___INT64, 1,
856 [Define if your compiler supports the \`__int64' type.])
860 dnl Host character set probe.
861 dnl The EBCDIC values match the table in config/i370/i370.c;
862 dnl there are other versions of EBCDIC but GCC won't work with them.
864 AC_DEFUN([gcc_AC_C_CHARSET],
865 [AC_CACHE_CHECK(execution character set, ac_cv_c_charset,
867 [#if '\n' == 0x0A && ' ' == 0x20 && '0' == 0x30 \
868 && 'A' == 0x41 && 'a' == 0x61 && '!' == 0x21
870 #endif], ac_cv_c_charset=ASCII)
871 if test x${ac_cv_c_charset+set} != xset; then
873 [#if '\n' == 0x15 && ' ' == 0x40 && '0' == 0xF0 \
874 && 'A' == 0xC1 && 'a' == 0x81 && '!' == 0x5A
876 #endif], ac_cv_c_charset=EBCDIC)
878 if test x${ac_cv_c_charset+set} != xset; then
879 ac_cv_c_charset=unknown
881 if test $ac_cv_c_charset = unknown; then
882 AC_MSG_ERROR([*** Cannot determine host character set.])
883 elif test $ac_cv_c_charset = EBCDIC; then
884 AC_DEFINE(HOST_EBCDIC, 1,
885 [Define if the host execution character set is EBCDIC.])
888 dnl Utility macro used by next two tests.
889 dnl AC_EXAMINE_OBJECT(C source code,
890 dnl commands examining object file,
891 dnl [commands to run if compile failed]):
893 dnl Compile the source code to an object file; then convert it into a
894 dnl printable representation. All unprintable characters and
895 dnl asterisks (*) are replaced by dots (.). All white space is
896 dnl deleted. Newlines (ASCII 0x10) in the input are preserved in the
897 dnl output, but runs of newlines are compressed to a single newline.
898 dnl Finally, line breaks are forcibly inserted so that no line is
899 dnl longer than 80 columns and the file ends with a newline. The
900 dnl result of all this processing is in the file conftest.dmp, which
901 dnl may be examined by the commands in the second argument.
903 AC_DEFUN([gcc_AC_EXAMINE_OBJECT],
906 dnl Next bit cribbed from AC_TRY_COMPILE.
907 cat > conftest.$ac_ext <<EOF
908 [#line __oline__ "configure"
909 #include "confdefs.h"
912 if AC_TRY_EVAL(ac_compile); then
914 sed ['s/^[0-7]*[ ]*/ /
917 s/ [0-9][0-9][0-9]/./g
931 dnl Floating point format probe.
932 dnl The basic concept is the same as the above: grep the object
933 dnl file for an interesting string. We have to watch out for
934 dnl rounding changing the values in the object, however; this is
935 dnl handled by ignoring the least significant byte of the float.
937 dnl Does not know about VAX G-float or C4x idiosyncratic format.
938 dnl It does know about PDP-10 idiosyncratic format, but this is
939 dnl not presently supported by GCC. S/390 "binary floating point"
940 dnl is in fact IEEE (but maybe we should have that in EBCDIC as well
943 AC_DEFUN([gcc_AC_C_FLOAT_FORMAT],
944 [AC_CACHE_CHECK(floating point format, ac_cv_c_float_format,
945 [gcc_AC_EXAMINE_OBJECT(
946 [/* This will not work unless sizeof(double) == 8. */
947 extern char sizeof_double_must_be_8 [sizeof(double) == 8 ? 1 : -1];
949 /* This structure must have no internal padding. */
956 #define C(cand) { "\nformat:", cand, ":tamrof\n" }
957 struct possibility table [] =
959 C( 3.25724264705901305206e+01), /* @@IEEEFP - IEEE 754 */
960 C( 3.53802595280598432000e+18), /* D__float - VAX */
961 C( 5.32201830133125317057e-19), /* D.PDP-10 - PDP-10 - the dot is 0x13a */
962 C( 1.77977764695171661377e+10), /* IBMHEXFP - s/390 format, ascii */
963 C(-5.22995989424860458374e+10) /* IBMHEXFP - s/390 format, EBCDIC */
965 [if grep 'format:.@IEEEF.:tamrof' conftest.dmp >/dev/null 2>&1; then
966 ac_cv_c_float_format='IEEE (big-endian)'
967 elif grep 'format:.I@@PFE.:tamrof' conftest.dmp >/dev/null 2>&1; then
968 ac_cv_c_float_format='IEEE (big-endian)'
969 elif grep 'format:.FEEEI@.:tamrof' conftest.dmp >/dev/null 2>&1; then
970 ac_cv_c_float_format='IEEE (little-endian)'
971 elif grep 'format:.EFP@@I.:tamrof' conftest.dmp >/dev/null 2>&1; then
972 ac_cv_c_float_format='IEEE (little-endian)'
973 elif grep 'format:.__floa.:tamrof' conftest.dmp >/dev/null 2>&1; then
974 ac_cv_c_float_format='VAX D-float'
975 elif grep 'format:..PDP-1.:tamrof' conftest.dmp >/dev/null 2>&1; then
976 ac_cv_c_float_format='PDP-10'
977 elif grep 'format:.BMHEXF.:tamrof' conftest.dmp >/dev/null 2>&1; then
978 ac_cv_c_float_format='IBM 370 hex'
980 AC_MSG_ERROR(Unknown floating point format)
982 [AC_MSG_ERROR(compile failed)])
984 # IEEE is the default format. If the float endianness isn't the same
985 # as the integer endianness, we have to set FLOAT_WORDS_BIG_ENDIAN
986 # (which is a tristate: yes, no, default). This is only an issue with
987 # IEEE; the other formats are only supported by a few machines each,
988 # all with the same endianness.
991 case $ac_cv_c_float_format in
992 'IEEE (big-endian)' )
993 if test $ac_cv_c_bigendian = no; then
997 'IEEE (little-endian)' )
998 if test $ac_cv_c_bigendian = yes; then
1003 format=VAX_FLOAT_FORMAT
1006 format=PDP10_FLOAT_FORMAT
1009 format=IBM_FLOAT_FORMAT
1012 if test -n "$format"; then
1013 AC_DEFINE_UNQUOTED(HOST_FLOAT_FORMAT, $format,
1014 [Define to the floating point format of the host machine, if not IEEE.])
1016 if test -n "$fbigend"; then
1017 AC_DEFINE_UNQUOTED(HOST_FLOAT_WORDS_BIG_ENDIAN, $fbigend,
1018 [Define to 1 if the host machine stores floating point numbers in
1019 memory with the word containing the sign bit at the lowest address,
1020 or to 0 if it does it the other way around.
1022 This macro should not be defined if the ordering is the same as for
1023 multi-word integers.])
1029 dnl From Bruno Haible.
1031 AC_DEFUN([AM_ICONV],
1033 dnl Some systems have iconv in libc, some have it in libiconv (OSF/1 and
1034 dnl those with the standalone portable GNU libiconv installed).
1036 am_cv_lib_iconv_ldpath=
1037 AC_ARG_WITH([libiconv-prefix],
1038 [ --with-libiconv-prefix=DIR search for libiconv in DIR/include and DIR/lib], [
1039 for dir in `echo "$withval" | tr : ' '`; do
1040 if test -d $dir/include; then CPPFLAGS="$CPPFLAGS -I$dir/include"; fi
1041 if test -d $dir/lib; then am_cv_lib_iconv_ldpath="-L$dir/lib"; fi
1045 AC_CACHE_CHECK(for iconv, am_cv_func_iconv, [
1046 am_cv_func_iconv="no, consider installing GNU libiconv"
1048 AC_TRY_LINK([#include <stdlib.h>
1049 #include <iconv.h>],
1050 [iconv_t cd = iconv_open("","");
1051 iconv(cd,NULL,NULL,NULL,NULL);
1053 am_cv_func_iconv=yes)
1054 if test "$am_cv_func_iconv" != yes; then
1055 am_save_LIBS="$LIBS"
1056 LIBS="$LIBS $am_cv_libiconv_ldpath -liconv"
1057 AC_TRY_LINK([#include <stdlib.h>
1058 #include <iconv.h>],
1059 [iconv_t cd = iconv_open("","");
1060 iconv(cd,NULL,NULL,NULL,NULL);
1063 am_cv_func_iconv=yes)
1064 LIBS="$am_save_LIBS"
1067 if test "$am_cv_func_iconv" = yes; then
1068 AC_DEFINE(HAVE_ICONV, 1, [Define if you have the iconv() function.])
1069 AC_MSG_CHECKING([for iconv declaration])
1070 AC_CACHE_VAL(am_cv_proto_iconv, [
1078 #if defined(__STDC__) || defined(__cplusplus)
1079 size_t iconv (iconv_t cd, char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft);
1083 ], [], am_cv_proto_iconv_arg1="", am_cv_proto_iconv_arg1="const")
1084 am_cv_proto_iconv="extern size_t iconv (iconv_t cd, $am_cv_proto_iconv_arg1 char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft);"])
1085 am_cv_proto_iconv=`echo "[$]am_cv_proto_iconv" | tr -s ' ' | sed -e 's/( /(/'`
1086 AC_MSG_RESULT([$]{ac_t:-
1087 }[$]am_cv_proto_iconv)
1088 AC_DEFINE_UNQUOTED(ICONV_CONST, $am_cv_proto_iconv_arg1,
1089 [Define as const if the declaration of iconv() needs const.])
1092 if test "$am_cv_lib_iconv" = yes; then
1093 LIBICONV="$am_cv_lib_iconv_ldpath -liconv"
1098 ### Gettext macros begin here.
1099 ### Changes for GCC marked by 'dnl GCC LOCAL'.
1100 ### Note iconv.m4 appears above, as it's used for other reasons.
1104 dnl From Bruno Haible.
1106 AC_DEFUN([AM_LANGINFO_CODESET],
1108 AC_CACHE_CHECK([for nl_langinfo and CODESET], am_cv_langinfo_codeset,
1109 [AC_TRY_LINK([#include <langinfo.h>],
1110 [char* cs = nl_langinfo(CODESET);],
1111 am_cv_langinfo_codeset=yes,
1112 am_cv_langinfo_codeset=no)
1114 if test $am_cv_langinfo_codeset = yes; then
1115 AC_DEFINE(HAVE_LANGINFO_CODESET, 1,
1116 [Define if you have <langinfo.h> and nl_langinfo(CODESET).])
1121 # This test replaces the one in autoconf.
1122 # Currently this macro should have the same name as the autoconf macro
1123 # because gettext's gettext.m4 (distributed in the automake package)
1124 # still uses it. Otherwise, the use in gettext.m4 makes autoheader
1125 # give these diagnostics:
1126 # configure.in:556: AC_TRY_COMPILE was called before AC_ISC_POSIX
1127 # configure.in:556: AC_TRY_RUN was called before AC_ISC_POSIX
1129 undefine([AC_ISC_POSIX])
1131 AC_DEFUN([AC_ISC_POSIX],
1133 dnl This test replaces the obsolescent AC_ISC_POSIX kludge.
1134 dnl GCC LOCAL: Use AC_SEARCH_LIBS.
1135 AC_SEARCH_LIBS(strerror, cposix)
1141 # Test for the GNU C Library, version 2.1 or newer.
1142 # From Bruno Haible.
1144 AC_DEFUN([jm_GLIBC21],
1146 AC_CACHE_CHECK(whether we are using the GNU C Library 2.1 or newer,
1147 ac_cv_gnu_library_2_1,
1148 [AC_EGREP_CPP([Lucky GNU user],
1150 #include <features.h>
1151 #ifdef __GNU_LIBRARY__
1152 #if (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 1) || (__GLIBC__ > 2)
1157 ac_cv_gnu_library_2_1=yes,
1158 ac_cv_gnu_library_2_1=no)
1162 GLIBC21="$ac_cv_gnu_library_2_1"
1166 # Check whether LC_MESSAGES is available in <locale.h>.
1167 # Ulrich Drepper <drepper@cygnus.com>, 1995.
1169 # This file can be copied and used freely without restrictions. It can
1170 # be used in projects which are not available under the GNU General Public
1171 # License or the GNU Library General Public License but which still want
1172 # to provide support for the GNU gettext functionality.
1173 # Please note that the actual code of the GNU gettext library is covered
1174 # by the GNU Library General Public License, and the rest of the GNU
1175 # gettext package package is covered by the GNU General Public License.
1176 # They are *not* in the public domain.
1180 AC_DEFUN([AM_LC_MESSAGES],
1181 [if test $ac_cv_header_locale_h = yes; then
1182 AC_CACHE_CHECK([for LC_MESSAGES], am_cv_val_LC_MESSAGES,
1183 [AC_TRY_LINK([#include <locale.h>], [return LC_MESSAGES],
1184 am_cv_val_LC_MESSAGES=yes, am_cv_val_LC_MESSAGES=no)])
1185 if test $am_cv_val_LC_MESSAGES = yes; then
1186 AC_DEFINE(HAVE_LC_MESSAGES, 1,
1187 [Define if your <locale.h> file defines LC_MESSAGES.])
1191 # Search path for a program which passes the given test.
1192 # Ulrich Drepper <drepper@cygnus.com>, 1996.
1194 # This file can be copied and used freely without restrictions. It can
1195 # be used in projects which are not available under the GNU General Public
1196 # License or the GNU Library General Public License but which still want
1197 # to provide support for the GNU gettext functionality.
1198 # Please note that the actual code of the GNU gettext library is covered
1199 # by the GNU Library General Public License, and the rest of the GNU
1200 # gettext package package is covered by the GNU General Public License.
1201 # They are *not* in the public domain.
1205 dnl AM_PATH_PROG_WITH_TEST(VARIABLE, PROG-TO-CHECK-FOR,
1206 dnl TEST-PERFORMED-ON-FOUND_PROGRAM [, VALUE-IF-NOT-FOUND [, PATH]])
1207 AC_DEFUN([AM_PATH_PROG_WITH_TEST],
1208 [# Extract the first word of "$2", so it can be a program name with args.
1209 set dummy $2; ac_word=[$]2
1210 AC_MSG_CHECKING([for $ac_word])
1211 AC_CACHE_VAL(ac_cv_path_$1,
1214 ac_cv_path_$1="[$]$1" # Let the user override the test with a path.
1217 IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:"
1218 for ac_dir in ifelse([$5], , $PATH, [$5]); do
1219 test -z "$ac_dir" && ac_dir=.
1220 if test -f $ac_dir/$ac_word; then
1222 ac_cv_path_$1="$ac_dir/$ac_word"
1228 dnl If no 4th arg is given, leave the cache variable unset,
1229 dnl so AC_PATH_PROGS will keep looking.
1230 ifelse([$4], , , [ test -z "[$]ac_cv_path_$1" && ac_cv_path_$1="$4"
1235 if test ifelse([$4], , [-n "[$]$1"], ["[$]$1" != "$4"]); then
1236 AC_MSG_RESULT([$]$1)
1243 # Macro to add for using GNU gettext.
1244 # Ulrich Drepper <drepper@cygnus.com>, 1995.
1246 # This file can be copied and used freely without restrictions. It can
1247 # be used in projects which are not available under the GNU General Public
1248 # License or the GNU Library General Public License but which still want
1249 # to provide support for the GNU gettext functionality.
1250 # Please note that the actual code of the GNU gettext library is covered
1251 # by the GNU Library General Public License, and the rest of the GNU
1252 # gettext package package is covered by the GNU General Public License.
1253 # They are *not* in the public domain.
1257 dnl Usage: AM_WITH_NLS([TOOLSYMBOL], [NEEDSYMBOL], [LIBDIR]).
1258 dnl If TOOLSYMBOL is specified and is 'use-libtool', then a libtool library
1259 dnl $(top_builddir)/intl/libintl.la will be created (shared and/or static,
1260 dnl depending on --{enable,disable}-{shared,static} and on the presence of
1261 dnl AM-DISABLE-SHARED). Otherwise, a static library
1262 dnl $(top_builddir)/intl/libintl.a will be created.
1263 dnl If NEEDSYMBOL is specified and is 'need-ngettext', then GNU gettext
1264 dnl implementations (in libc or libintl) without the ngettext() function
1265 dnl will be ignored.
1266 dnl LIBDIR is used to find the intl libraries. If empty,
1267 dnl the value `$(top_builddir)/intl/' is used.
1269 dnl The result of the configuration is one of three cases:
1270 dnl 1) GNU gettext, as included in the intl subdirectory, will be compiled
1272 dnl Catalog format: GNU --> install in $(datadir)
1273 dnl Catalog extension: .mo after installation, .gmo in source tree
1274 dnl 2) GNU gettext has been found in the system's C library.
1275 dnl Catalog format: GNU --> install in $(datadir)
1276 dnl Catalog extension: .mo after installation, .gmo in source tree
1277 dnl 3) No internationalization, always use English msgid.
1278 dnl Catalog format: none
1279 dnl Catalog extension: none
1280 dnl The use of .gmo is historical (it was needed to avoid overwriting the
1281 dnl GNU format catalogs when building on a platform with an X/Open gettext),
1282 dnl but we keep it in order not to force irrelevant filename changes on the
1285 AC_DEFUN([AM_WITH_NLS],
1286 [AC_MSG_CHECKING([whether NLS is requested])
1287 dnl Default is enabled NLS
1289 [ --disable-nls do not use Native Language Support],
1290 USE_NLS=$enableval, USE_NLS=yes)
1291 AC_MSG_RESULT($USE_NLS)
1294 BUILD_INCLUDED_LIBINTL=no
1295 USE_INCLUDED_LIBINTL=no
1296 dnl GCC LOCAL: Separate concept of link command line from dependencies.
1300 dnl If we use NLS figure out what method
1301 if test "$USE_NLS" = "yes"; then
1302 AC_DEFINE(ENABLE_NLS, 1,
1303 [Define to 1 if translation of program messages to the user's native language
1305 AC_MSG_CHECKING([whether included gettext is requested])
1306 AC_ARG_WITH(included-gettext,
1307 [ --with-included-gettext use the GNU gettext library included here],
1308 nls_cv_force_use_gnu_gettext=$withval,
1309 nls_cv_force_use_gnu_gettext=no)
1310 AC_MSG_RESULT($nls_cv_force_use_gnu_gettext)
1312 nls_cv_use_gnu_gettext="$nls_cv_force_use_gnu_gettext"
1313 if test "$nls_cv_force_use_gnu_gettext" != "yes"; then
1314 dnl User does not insist on using GNU NLS library. Figure out what
1315 dnl to use. If GNU gettext is available we use this. Else we have
1316 dnl to fall back to GNU NLS library.
1319 dnl Add a version number to the cache macros.
1320 define(gt_cv_func_gnugettext_libc, [gt_cv_func_gnugettext]ifelse([$2], need-ngettext, 2, 1)[_libc])
1321 define(gt_cv_func_gnugettext_libintl, [gt_cv_func_gnugettext]ifelse([$2], need-ngettext, 2, 1)[_libintl])
1323 dnl GCC LOCAL: Expose presence of libintl.h to C code.
1324 AC_CHECK_HEADER(libintl.h,
1325 [AC_DEFINE([HAVE_LIBINTL_H], 1,
1326 [Define if you have the <libintl.h> header file.])
1327 AC_CACHE_CHECK([for GNU gettext in libc], gt_cv_func_gnugettext_libc,
1328 [AC_TRY_LINK([#include <libintl.h>
1329 extern int _nl_msg_cat_cntr;],
1330 [bindtextdomain ("", "");
1331 return (int) gettext ("")]ifelse([$2], need-ngettext, [ + (int) ngettext ("", "", 0)], [])[ + _nl_msg_cat_cntr],
1332 gt_cv_func_gnugettext_libc=yes,
1333 gt_cv_func_gnugettext_libc=no)])
1335 if test "$gt_cv_func_gnugettext_libc" != "yes"; then
1336 AC_CACHE_CHECK([for GNU gettext in libintl],
1337 gt_cv_func_gnugettext_libintl,
1338 [gt_save_LIBS="$LIBS"
1339 LIBS="$LIBS -lintl $LIBICONV"
1340 AC_TRY_LINK([#include <libintl.h>
1341 extern int _nl_msg_cat_cntr;],
1342 [bindtextdomain ("", "");
1343 return (int) gettext ("")]ifelse([$2], need-ngettext, [ + (int) ngettext ("", "", 0)], [])[ + _nl_msg_cat_cntr],
1344 gt_cv_func_gnugettext_libintl=yes,
1345 gt_cv_func_gnugettext_libintl=no)
1346 LIBS="$gt_save_LIBS"])
1349 dnl If an already present or preinstalled GNU gettext() is found,
1350 dnl use it. But if this macro is used in GNU gettext, and GNU
1351 dnl gettext is already preinstalled in libintl, we update this
1352 dnl libintl. (Cf. the install rule in intl/Makefile.in.)
1353 if test "$gt_cv_func_gnugettext_libc" = "yes" \
1354 || { test "$gt_cv_func_gnugettext_libintl" = "yes" \
1355 && test "$PACKAGE" != gettext; }; then
1356 AC_DEFINE(HAVE_GETTEXT, 1,
1357 [Define if the GNU gettext() function is already present or preinstalled.])
1359 if test "$gt_cv_func_gnugettext_libintl" = "yes"; then
1360 dnl If iconv() is in a separate libiconv library, then anyone
1361 dnl linking with libintl{.a,.so} also needs to link with
1363 INTLLIBS="-lintl $LIBICONV"
1366 gt_save_LIBS="$LIBS"
1367 LIBS="$LIBS $INTLLIBS"
1368 AC_CHECK_FUNCS(dcgettext)
1369 LIBS="$gt_save_LIBS"
1371 dnl Search for GNU msgfmt in the PATH.
1372 AM_PATH_PROG_WITH_TEST(MSGFMT, msgfmt,
1373 [$ac_dir/$ac_word --statistics /dev/null >/dev/null 2>&1], :)
1374 AC_PATH_PROG(GMSGFMT, gmsgfmt, $MSGFMT)
1376 dnl Search for GNU xgettext in the PATH.
1377 AM_PATH_PROG_WITH_TEST(XGETTEXT, xgettext,
1378 [$ac_dir/$ac_word --omit-header /dev/null >/dev/null 2>&1], :)
1384 if test "$CATOBJEXT" = "NONE"; then
1385 dnl GNU gettext is not found in the C library.
1386 dnl Fall back on GNU gettext library.
1387 nls_cv_use_gnu_gettext=yes
1391 if test "$nls_cv_use_gnu_gettext" = "yes"; then
1392 dnl Mark actions used to generate GNU NLS library.
1393 INTLOBJS="\$(GETTOBJS)"
1394 AM_PATH_PROG_WITH_TEST(MSGFMT, msgfmt,
1395 [$ac_dir/$ac_word --statistics /dev/null >/dev/null 2>&1], :)
1396 AC_PATH_PROG(GMSGFMT, gmsgfmt, $MSGFMT)
1397 AM_PATH_PROG_WITH_TEST(XGETTEXT, xgettext,
1398 [$ac_dir/$ac_word --omit-header /dev/null >/dev/null 2>&1], :)
1400 BUILD_INCLUDED_LIBINTL=yes
1401 USE_INCLUDED_LIBINTL=yes
1403 INTLLIBS="ifelse([$3],[],\$(top_builddir)/intl,[$3])/libintl.ifelse([$1], use-libtool, [l], [])a $LIBICONV"
1404 INTLDEPS="ifelse([$3],[],\$(top_builddir)/intl,[$3])/libintl.ifelse([$1], use-libtool, [l], [])a"
1405 LIBS=`echo " $LIBS " | sed -e 's/ -lintl / /' -e 's/^ //' -e 's/ $//'`
1408 dnl This could go away some day; the PATH_PROG_WITH_TEST already does it.
1409 dnl Test whether we really found GNU msgfmt.
1410 if test "$GMSGFMT" != ":"; then
1411 dnl If it is no GNU msgfmt we define it as : so that the
1412 dnl Makefiles still can work.
1413 if $GMSGFMT --statistics /dev/null >/dev/null 2>&1; then
1417 [found msgfmt program is not GNU msgfmt; ignore it])
1422 dnl This could go away some day; the PATH_PROG_WITH_TEST already does it.
1423 dnl Test whether we really found GNU xgettext.
1424 if test "$XGETTEXT" != ":"; then
1425 dnl If it is no GNU xgettext we define it as : so that the
1426 dnl Makefiles still can work.
1427 if $XGETTEXT --omit-header /dev/null >/dev/null 2>&1; then
1431 [found xgettext program is not GNU xgettext; ignore it])
1436 dnl We need to process the po/ directory.
1440 [for ac_file in $CONFIG_FILES; do
1441 # Support "outfile[:infile[:infile...]]"
1443 *:*) ac_file=`echo "$ac_file"|sed 's%:.*%%'` ;;
1445 # PO directories have a Makefile.in generated from Makefile.in.in.
1446 case "$ac_file" in */Makefile.in)
1447 # Adjust a relative srcdir.
1448 ac_dir=`echo "$ac_file"|sed 's%/[^/][^/]*$%%'`
1449 ac_dir_suffix="/`echo "$ac_dir"|sed 's%^\./%%'`"
1450 ac_dots=`echo "$ac_dir_suffix"|sed 's%/[^/]*%../%g'`
1451 # In autoconf-2.13 it is called $ac_given_srcdir.
1452 # In autoconf-2.50 it is called $srcdir.
1453 test -n "$ac_given_srcdir" || ac_given_srcdir="$srcdir"
1454 case "$ac_given_srcdir" in
1455 .) top_srcdir=`echo $ac_dots|sed 's%/$%%'` ;;
1456 /*) top_srcdir="$ac_given_srcdir" ;;
1457 *) top_srcdir="$ac_dots$ac_given_srcdir" ;;
1459 if test -f "$ac_given_srcdir/$ac_dir/POTFILES.in"; then
1460 rm -f "$ac_dir/POTFILES"
1461 test -n "$as_me" && echo "$as_me: creating $ac_dir/POTFILES" || echo "creating $ac_dir/POTFILES"
1462 sed -e "/^#/d" -e "/^[ ]*\$/d" -e "s,.*, $top_srcdir/& \\\\," -e "\$s/\(.*\) \\\\/\1/" < "$ac_given_srcdir/$ac_dir/POTFILES.in" > "$ac_dir/POTFILES"
1463 test -n "$as_me" && echo "$as_me: creating $ac_dir/Makefile" || echo "creating $ac_dir/Makefile"
1464 sed -e "/POTFILES =/r $ac_dir/POTFILES" "$ac_dir/Makefile.in" > "$ac_dir/Makefile"
1471 dnl If this is used in GNU gettext we have to set BUILD_INCLUDED_LIBINTL
1472 dnl to 'yes' because some of the testsuite requires it.
1473 if test "$PACKAGE" = gettext; then
1474 BUILD_INCLUDED_LIBINTL=yes
1477 dnl intl/plural.c is generated from intl/plural.y. It requires bison,
1478 dnl because plural.y uses bison specific features. It requires at least
1479 dnl bison-1.26 because earlier versions generate a plural.c that doesn't
1481 dnl bison is only needed for the maintainer (who touches plural.y). But in
1482 dnl order to avoid separate Makefiles or --enable-maintainer-mode, we put
1483 dnl the rule in general Makefile. Now, some people carelessly touch the
1484 dnl files or have a broken "make" program, hence the plural.c rule will
1485 dnl sometimes fire. To avoid an error, defines BISON to ":" if it is not
1486 dnl present or too old.
1487 AC_CHECK_PROGS([INTLBISON], [bison])
1488 if test -z "$INTLBISON"; then
1491 dnl Found it, now check the version.
1492 AC_MSG_CHECKING([version of bison])
1493 changequote(<<,>>)dnl
1494 ac_prog_version=`$INTLBISON --version 2>&1 | sed -n 's/^.*GNU Bison.* \([0-9]*\.[0-9.]*\).*$/\1/p'`
1495 case $ac_prog_version in
1496 '') ac_prog_version="v. ?.??, bad"; ac_verc_fail=yes;;
1497 1.2[6-9]* | 1.[3-9][0-9]* | [2-9].*)
1499 ac_prog_version="$ac_prog_version, ok"; ac_verc_fail=no;;
1500 *) ac_prog_version="$ac_prog_version, bad"; ac_verc_fail=yes;;
1502 AC_MSG_RESULT([$ac_prog_version])
1504 if test $ac_verc_fail = yes; then
1508 dnl GCC LOCAL: GMOFILES/POFILES removed as unnecessary.
1510 dnl Make all variables we use known to autoconf.
1511 AC_SUBST(BUILD_INCLUDED_LIBINTL)
1512 AC_SUBST(USE_INCLUDED_LIBINTL)
1519 dnl GCC LOCAL: Make USE_INCLUDED_LIBINTL visible to C code.
1520 if test $USE_INCLUDED_LIBINTL = yes; then
1521 AC_DEFINE([USE_INCLUDED_LIBINTL], 1,
1522 [Define to use the libintl included with this package instead of any
1523 version in the system libraries.])
1526 dnl For backward compatibility. Some configure.ins may be using this.
1528 nls_cv_header_libgt=
1530 dnl For backward compatibility. Some Makefiles may be using this.
1532 AC_SUBST(DATADIRNAME)
1534 dnl For backward compatibility. Some Makefiles may be using this.
1536 AC_SUBST(INSTOBJEXT)
1538 dnl For backward compatibility. Some Makefiles may be using this.
1543 dnl Usage: Just like AM_WITH_NLS, which see.
1544 AC_DEFUN([AM_GNU_GETTEXT],
1545 [AC_REQUIRE([AC_PROG_MAKE_SET])dnl
1546 AC_REQUIRE([AC_PROG_CC])dnl
1547 AC_REQUIRE([AC_CANONICAL_HOST])dnl
1548 AC_REQUIRE([AC_PROG_RANLIB])dnl
1549 AC_REQUIRE([AC_ISC_POSIX])dnl
1550 AC_REQUIRE([AC_HEADER_STDC])dnl
1551 AC_REQUIRE([AC_C_CONST])dnl
1552 AC_REQUIRE([AC_C_INLINE])dnl
1553 AC_REQUIRE([AC_TYPE_OFF_T])dnl
1554 AC_REQUIRE([AC_TYPE_SIZE_T])dnl
1555 AC_REQUIRE([AC_FUNC_ALLOCA])dnl
1556 dnl GCC LOCAL: Do not refer to AC_FUNC_MMAP, we have special needs.
1557 dnl AC_REQUIRE([AC_FUNC_MMAP])dnl
1558 AC_REQUIRE([jm_GLIBC21])dnl
1560 AC_CHECK_HEADERS([argz.h limits.h locale.h nl_types.h malloc.h stddef.h \
1561 stdlib.h string.h unistd.h sys/param.h])
1562 AC_CHECK_FUNCS([feof_unlocked fgets_unlocked getcwd getegid geteuid \
1563 getgid getuid mempcpy munmap putenv setenv setlocale stpcpy strchr strcasecmp \
1564 strdup strtoul tsearch __argz_count __argz_stringify __argz_next])
1569 AM_WITH_NLS([$1],[$2],[$3])
1571 dnl GCC LOCAL: The LINGUAS/ALL_LINGUAS/CATALOGS mess that was here
1572 dnl has been torn out and replaced with this more sensible scheme.
1573 if test "x$CATOBJEXT" != x; then
1574 AC_MSG_CHECKING(for catalogs to be installed)
1575 # Look for .po and .gmo files in the source directory.
1578 for cat in $srcdir/po/*$CATOBJEXT $srcdir/po/*.po; do
1579 # If there aren't any .gmo files the shell will give us the
1580 # literal string "../path/to/srcdir/po/*.gmo" which has to be
1582 case "$cat" in *\**)
1585 # The quadruple backslash is collapsed to a double backslash
1586 # by the backticks, then collapsed again by the double quotes,
1587 # leaving us with one backslash in the sed expression (right
1588 # before the dot that mustn't act as a wildcard). The dot to
1589 # be escaped in the second expression is hiding inside CATOBJEXT.
1590 cat=`echo $cat | sed -e "s!$srcdir/!!" -e "s!\\\\.po!$CATOBJEXT!"`
1591 lang=`echo $cat | sed -e 's!po/!!' -e "s!\\\\$CATOBJEXT!!"`
1592 # The user is allowed to set LINGUAS to a list of languages to
1593 # install catalogs for. If it's empty that means "all of them."
1594 if test "x$LINGUAS" = x; then
1595 CATALOGS="$CATALOGS $cat"
1596 XLINGUAS="$XLINGUAS $lang"
1598 case "$LINGUAS" in *$lang*)
1599 CATALOGS="$CATALOGS $cat"
1600 XLINGUAS="$XLINGUAS $lang"
1606 AC_MSG_RESULT($LINGUAS)
1609 dnl If the AC_CONFIG_AUX_DIR macro for autoconf is used we possibly
1610 dnl find the mkinstalldirs script in another subdir but $(top_srcdir).
1611 dnl Try to locate is.
1613 if test -n "$ac_aux_dir"; then
1614 MKINSTALLDIRS="$ac_aux_dir/mkinstalldirs"
1616 if test -z "$MKINSTALLDIRS"; then
1617 MKINSTALLDIRS="\$(top_srcdir)/mkinstalldirs"
1619 AC_SUBST(MKINSTALLDIRS)
1621 dnl Enable libtool support if the surrounding package wishes it.
1622 INTL_LIBTOOL_SUFFIX_PREFIX=ifelse([$1], use-libtool, [l], [])
1623 AC_SUBST(INTL_LIBTOOL_SUFFIX_PREFIX)
1626 AC_DEFUN(gcc_AC_INITFINI_ARRAY,
1627 [AC_ARG_ENABLE(initfini-array,
1628 [ --enable-initfini-array use .init_array/.fini_array sections],
1630 AC_CACHE_CHECK(for .preinit_array/.init_array/.fini_array support,
1631 gcc_cv_initfini_array, [dnl
1634 int main (void) { return x; }
1635 int foo (void) { x = 0; }
1636 int (*fp) (void) __attribute__ ((section (".init_array"))) = foo;],
1637 [gcc_cv_initfini_array=yes], [gcc_cv_initfini_array=no],
1638 [gcc_cv_initfini_array=no])])
1639 enable_initfini_array=$gcc_cv_initfini_array
1641 if test $enable_initfini_array = yes; then
1642 AC_DEFINE(HAVE_INITFINI_ARRAY, 1,
1643 [Define .init_array/.fini_array sections are available and working.])
1646 dnl # _gcc_COMPUTE_GAS_VERSION
1647 dnl # Used by gcc_GAS_VERSION_GTE_IFELSE
1650 dnl # gcc_cv_as_gas_srcdir must be defined before this.
1651 dnl # This gross requirement will go away eventually.
1652 AC_DEFUN([_gcc_COMPUTE_GAS_VERSION],
1653 [gcc_cv_as_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd
1654 for f in $gcc_cv_as_bfd_srcdir/configure \
1655 $gcc_cv_as_gas_srcdir/configure \
1656 $gcc_cv_as_gas_srcdir/configure.in \
1657 $gcc_cv_as_gas_srcdir/Makefile.in ; do
1658 gcc_cv_gas_version=`grep '^VERSION=[[0-9]]*\.[[0-9]]*' $f`
1659 if test x$gcc_cv_gas_version != x; then
1663 gcc_cv_gas_major_version=`expr "$gcc_cv_gas_version" : "VERSION=\([[0-9]]*\)"`
1664 gcc_cv_gas_minor_version=`expr "$gcc_cv_gas_version" : "VERSION=[[0-9]]*\.\([[0-9]]*\)"`
1665 gcc_cv_gas_patch_version=`expr "$gcc_cv_gas_version" : "VERSION=[[0-9]]*\.[[0-9]]*\.\([[0-9]]*\)"`
1666 ]) []dnl # _gcc_COMPUTE_GAS_VERSION
1668 dnl # gcc_GAS_VERSION_GTE_IFELSE(major, minor, patchlevel,
1669 dnl # [command_if_true = :], [command_if_false = :])
1670 dnl # Check to see if the version of GAS is greater than or
1671 dnl # equal to the specified version.
1673 dnl # The first ifelse() shortens the shell code if the patchlevel
1674 dnl # is unimportant (the usual case). The others handle missing
1675 dnl # commands. Note that the tests are structured so that the most
1676 dnl # common version number cases are tested first.
1677 AC_DEFUN([gcc_GAS_VERSION_GTE_IFELSE],
1678 [AC_REQUIRE([_gcc_COMPUTE_GAS_VERSION]) []dnl
1680 [if test $gcc_cv_gas_major_version -eq $1 \
1681 && test $gcc_cv_gas_minor_version -ge $2 \
1682 || test $gcc_cv_gas_major_version -gt $1 ; then
1684 [if test $gcc_cv_gas_major_version -eq $1 \
1685 && (test $gcc_cv_gas_minor_version -gt $2 \
1686 || (test $gcc_cv_gas_minor_version -eq $2 \
1687 && test $gcc_cv_gas_patch_version -ge $3 )) \
1688 || test $gcc_cv_gas_major_version -gt $1 ; then
1690 ifelse([$4],[],[:],[$4])
1691 ifelse([$5],[],[],[else $5])
1693 ]) []dnl # gcc_GAS_VERSION_GTE_IFELSE