1 dnl See if stdbool.h properly defines bool and true/false.
2 AC_DEFUN(gcc_AC_HEADER_STDBOOL,
3 [AC_CACHE_CHECK([for working stdbool.h],
4 ac_cv_header_stdbool_h,
5 [AC_TRY_COMPILE([#include <stdbool.h>],
7 ac_cv_header_stdbool_h=yes, ac_cv_header_stdbool_h=no)])
8 if test $ac_cv_header_stdbool_h = yes; then
9 AC_DEFINE(HAVE_STDBOOL_H, 1,
10 [Define if you have a working <stdbool.h> header file.])
14 dnl See whether we can include both string.h and strings.h.
15 AC_DEFUN(gcc_AC_HEADER_STRING,
16 [AC_CACHE_CHECK([whether string.h and strings.h may both be included],
18 [AC_TRY_COMPILE([#include <string.h>
19 #include <strings.h>], , gcc_cv_header_string=yes, gcc_cv_header_string=no)])
20 if test $gcc_cv_header_string = yes; then
21 AC_DEFINE(STRING_WITH_STRINGS, 1, [Define if you can safely include both <string.h> and <strings.h>.])
25 dnl See whether we need a declaration for a function.
26 dnl The result is highly dependent on the INCLUDES passed in, so make sure
27 dnl to use a different cache variable name in this macro if it is invoked
28 dnl in a different context somewhere else.
29 dnl gcc_AC_CHECK_DECL(SYMBOL,
30 dnl [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND [, INCLUDES]]])
31 AC_DEFUN(gcc_AC_CHECK_DECL,
32 [AC_MSG_CHECKING([whether $1 is declared])
33 AC_CACHE_VAL(gcc_cv_have_decl_$1,
36 char *(*pfn) = (char *(*)) $1 ;
37 #endif], eval "gcc_cv_have_decl_$1=yes", eval "gcc_cv_have_decl_$1=no")])
38 if eval "test \"`echo '$gcc_cv_have_decl_'$1`\" = yes"; then
39 AC_MSG_RESULT(yes) ; ifelse([$2], , :, [$2])
41 AC_MSG_RESULT(no) ; ifelse([$3], , :, [$3])
45 dnl Check multiple functions to see whether each needs a declaration.
46 dnl Arrange to define HAVE_DECL_<FUNCTION> to 0 or 1 as appropriate.
47 dnl gcc_AC_CHECK_DECLS(SYMBOLS,
48 dnl [ACTION-IF-NEEDED [, ACTION-IF-NOT-NEEDED [, INCLUDES]]])
49 AC_DEFUN(gcc_AC_CHECK_DECLS,
53 ac_tr_decl=HAVE_DECL_`echo $ac_func | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
55 gcc_AC_CHECK_DECL($ac_func,
56 [AC_DEFINE_UNQUOTED($ac_tr_decl, 1) $2],
57 [AC_DEFINE_UNQUOTED($ac_tr_decl, 0) $3],
58 dnl It is possible that the include files passed in here are local headers
59 dnl which supply a backup declaration for the relevant prototype based on
60 dnl the definition of (or lack of) the HAVE_DECL_ macro. If so, this test
61 dnl will always return success. E.g. see libiberty.h's handling of
62 dnl `basename'. To avoid this, we define the relevant HAVE_DECL_ macro to
63 dnl 1 so that any local headers used do not provide their own prototype
70 dnl Automatically generate config.h entries via autoheader.
72 patsubst(translit([$1], [a-z], [A-Z]), [\w+],
73 [AC_DEFINE([HAVE_DECL_\&], 1,
74 [Define to 1 if we found this declaration otherwise define to 0.])])dnl
78 dnl See if the printf functions in libc support %p in format strings.
79 AC_DEFUN(gcc_AC_FUNC_PRINTF_PTR,
80 [AC_CACHE_CHECK(whether the printf functions support %p,
81 gcc_cv_func_printf_ptr,
82 [AC_TRY_RUN([#include <stdio.h>
87 char *p = buf, *q = NULL;
88 sprintf(buf, "%p", p);
89 sscanf(buf, "%p", &q);
91 }], gcc_cv_func_printf_ptr=yes, gcc_cv_func_printf_ptr=no,
92 gcc_cv_func_printf_ptr=no)
93 rm -f core core.* *.core])
94 if test $gcc_cv_func_printf_ptr = yes ; then
95 AC_DEFINE(HAVE_PRINTF_PTR, 1, [Define if printf supports "%p".])
99 dnl See if symbolic links work and if not, try to substitute either hard links or simple copy.
100 AC_DEFUN(gcc_AC_PROG_LN_S,
101 [AC_MSG_CHECKING(whether ln -s works)
102 AC_CACHE_VAL(gcc_cv_prog_LN_S,
103 [rm -f conftestdata_t
105 if ln -s conftestdata_f conftestdata_t 2>/dev/null
107 gcc_cv_prog_LN_S="ln -s"
109 if ln conftestdata_f conftestdata_t 2>/dev/null
116 rm -f conftestdata_f conftestdata_t
118 LN_S="$gcc_cv_prog_LN_S"
119 if test "$gcc_cv_prog_LN_S" = "ln -s"; then
122 if test "$gcc_cv_prog_LN_S" = "ln"; then
123 AC_MSG_RESULT([no, using ln])
125 AC_MSG_RESULT([no, and neither does ln, so using cp])
131 dnl See if hard links work and if not, try to substitute either symbolic links or simple copy.
132 AC_DEFUN(gcc_AC_PROG_LN,
133 [AC_MSG_CHECKING(whether ln works)
134 AC_CACHE_VAL(gcc_cv_prog_LN,
135 [rm -f conftestdata_t
137 if ln conftestdata_f conftestdata_t 2>/dev/null
141 if ln -s conftestdata_f conftestdata_t 2>/dev/null
143 gcc_cv_prog_LN="ln -s"
148 rm -f conftestdata_f conftestdata_t
151 if test "$gcc_cv_prog_LN" = "ln"; then
154 if test "$gcc_cv_prog_LN" = "ln -s"; then
155 AC_MSG_RESULT([no, using ln -s])
157 AC_MSG_RESULT([no, and neither does ln -s, so using cp])
163 dnl See whether the stage1 host compiler accepts the volatile keyword.
164 AC_DEFUN(gcc_AC_C_VOLATILE,
165 [AC_CACHE_CHECK([for volatile], gcc_cv_c_volatile,
166 [AC_TRY_COMPILE(, [volatile int foo;],
167 gcc_cv_c_volatile=yes, gcc_cv_c_volatile=no)])
168 if test $gcc_cv_c_volatile = yes ; then
169 AC_DEFINE(HAVE_VOLATILE, 1, [Define if your compiler understands volatile.])
173 dnl Check whether long double is supported. This differs from the
174 dnl built-in autoconf test in that it works for cross compiles.
175 AC_DEFUN(gcc_AC_C_LONG_DOUBLE,
176 [AC_CACHE_CHECK(for long double, gcc_cv_c_long_double,
177 [if test "$GCC" = yes; then
178 gcc_cv_c_long_double=yes
181 [/* The Stardent Vistra knows sizeof(long double), but does not support it. */
182 long double foo = 0.0;
183 /* On Ultrix 4.3 cc, long double is 4 and double is 8. */
184 switch (0) case 0: case (sizeof(long double) >= sizeof(double)):;],
185 gcc_cv_c_long_double=yes, gcc_cv_c_long_double=no)
187 if test $gcc_cv_c_long_double = yes; then
188 AC_DEFINE(HAVE_LONG_DOUBLE, 1,
189 [Define if your compiler supports the \`long double' type.])
193 dnl Check whether _Bool is built-in.
194 AC_DEFUN(gcc_AC_C__BOOL,
195 [AC_CACHE_CHECK(for built-in _Bool, gcc_cv_c__bool,
198 gcc_cv_c__bool=yes, gcc_cv_c__bool=no)
200 if test $gcc_cv_c__bool = yes; then
201 AC_DEFINE(HAVE__BOOL, 1, [Define if the \`_Bool' type is built-in.])
205 dnl Define MKDIR_TAKES_ONE_ARG if mkdir accepts only one argument instead
207 AC_DEFUN(gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG,
208 [AC_CACHE_CHECK([if mkdir takes one argument], gcc_cv_mkdir_takes_one_arg,
210 #include <sys/types.h>
211 #ifdef HAVE_SYS_STAT_H
212 # include <sys/stat.h>
219 #endif], [mkdir ("foo", 0);],
220 gcc_cv_mkdir_takes_one_arg=no, gcc_cv_mkdir_takes_one_arg=yes)])
221 if test $gcc_cv_mkdir_takes_one_arg = yes ; then
222 AC_DEFINE(MKDIR_TAKES_ONE_ARG, 1, [Define if host mkdir takes a single argument.])
226 AC_DEFUN(gcc_AC_PROG_INSTALL,
227 [AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT])dnl
228 # Find a good install program. We prefer a C program (faster),
229 # so one script is as good as another. But avoid the broken or
230 # incompatible versions:
231 # SysV /etc/install, /usr/sbin/install
232 # SunOS /usr/etc/install
235 # AFS /usr/afsws/bin/install, which mishandles nonexistent args
236 # SVR4 /usr/ucb/install, which tries to use the nonexistent group "staff"
237 # ./install, which can be erroneously created by make from ./install.sh.
238 AC_MSG_CHECKING(for a BSD compatible install)
239 if test -z "$INSTALL"; then
240 AC_CACHE_VAL(ac_cv_path_install,
241 [ IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="${IFS}:"
242 for ac_dir in $PATH; do
243 # Account for people who put trailing slashes in PATH elements.
245 /|./|.//|/etc/*|/usr/sbin/*|/usr/etc/*|/sbin/*|/usr/afsws/bin/*|/usr/ucb/*) ;;
247 # OSF1 and SCO ODT 3.0 have their own names for install.
248 for ac_prog in ginstall scoinst install; do
249 if test -f $ac_dir/$ac_prog; then
250 if test $ac_prog = install &&
251 grep dspmsg $ac_dir/$ac_prog >/dev/null 2>&1; then
252 # AIX install. It has an incompatible calling convention.
253 # OSF/1 installbsd also uses dspmsg, but is usable.
256 ac_cv_path_install="$ac_dir/$ac_prog -c"
266 if test "${ac_cv_path_install+set}" = set; then
267 INSTALL="$ac_cv_path_install"
269 # As a last resort, use the slow shell script. We don't cache a
270 # path for INSTALL within a source directory, because that will
271 # break other packages using the cache if that directory is
272 # removed, or if the path is relative.
273 INSTALL="$ac_install_sh"
276 dnl We do special magic for INSTALL instead of AC_SUBST, to get
277 dnl relative paths right.
278 AC_MSG_RESULT($INSTALL)
281 # Use test -z because SunOS4 sh mishandles braces in ${var-val}.
282 # It thinks the first close brace ends the variable substitution.
283 test -z "$INSTALL_PROGRAM" && INSTALL_PROGRAM='${INSTALL}'
284 AC_SUBST(INSTALL_PROGRAM)dnl
286 test -z "$INSTALL_DATA" && INSTALL_DATA='${INSTALL} -m 644'
287 AC_SUBST(INSTALL_DATA)dnl
291 dnl We require the gnatbind program, and a compiler driver that
292 dnl understands Ada. The user may set the driver name explicitly
293 dnl with ADAC; also, the user's CC setting is tried. Failing that,
294 dnl we try gcc and cc, then a sampling of names known to be used for
295 dnl the Ada driver on various systems.
297 dnl Sets the shell variable have_gnat to yes or no as appropriate, and
298 dnl substitutes GNATBIND and ADAC.
299 AC_DEFUN([gcc_AC_PROG_GNAT],
300 [AC_REQUIRE([AC_CHECK_TOOL_PREFIX])
301 AC_CHECK_TOOL(GNATBIND, gnatbind, no)
302 AC_CACHE_CHECK([for compiler driver that understands Ada],
304 [cat >conftest.adb <<EOF
305 procedure conftest is begin null; end conftest;
308 # Have to do ac_tool_prefix and user overrides by hand.
311 for cand in ${ac_tool_prefix}$user_adac $user_adac \
312 ${ac_tool_prefix}$user_cc $user_cc \
313 ${ac_tool_prefix}gcc gcc \
314 ${ac_tool_prefix}cc cc \
315 ${ac_tool_prefix}gnatgcc gnatgcc \
316 ${ac_tool_prefix}gnatcc gnatcc \
317 ${ac_tool_prefix}adagcc adagcc \
318 ${ac_tool_prefix}adacc adacc ; do
319 # There is a bug in all released versions of GCC which causes the
320 # driver to exit successfully when the appropriate language module
321 # has not been installed. This is fixed in 2.95.4, 3.0.2, and 3.1.
322 # Therefore we must check for the error message as well as an
324 errors=`($cand -c conftest.adb) 2>&1 || echo failure`
325 if test x"$errors" = x; then
326 gcc_cv_prog_adac=$cand
331 ADAC=$gcc_cv_prog_adac
334 if test x$GNATBIND != xno && test x$ADAC != xno; then
342 dnl This test replaces the one in autoconf.
343 dnl Currently this macro should have the same name as the autoconf macro
344 dnl because gettext's gettext.m4 (distributed in the automake package)
345 dnl still uses it. Otherwise, the use in gettext.m4 makes autoheader
346 dnl give these diagnostics:
347 dnl configure.in:556: AC_TRY_COMPILE was called before AC_ISC_POSIX
348 dnl configure.in:556: AC_TRY_RUN was called before AC_ISC_POSIX
350 undefine([AC_ISC_POSIX])
351 AC_DEFUN(AC_ISC_POSIX,
353 dnl This test replaces the obsolescent AC_ISC_POSIX kludge.
354 AC_CHECK_LIB(cposix, strerror, [LIBS="$LIBS -lcposix"])
359 dnl GCC_PATH_PROG(VARIABLE, PROG-TO-CHECK-FOR [, VALUE-IF-NOT-FOUND [, PATH]])
360 dnl like AC_PATH_PROG but use other cache variables
361 AC_DEFUN(GCC_PATH_PROG,
362 [# Extract the first word of "$2", so it can be a program name with args.
363 set dummy $2; ac_word=[$]2
364 AC_MSG_CHECKING([for $ac_word])
365 AC_CACHE_VAL(gcc_cv_path_$1,
368 gcc_cv_path_$1="[$]$1" # Let the user override the test with a path.
371 gcc_cv_path_$1="[$]$1" # Let the user override the test with a dos path.
374 IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS=":"
375 dnl $ac_dummy forces splitting on constant user-supplied paths.
376 dnl POSIX.2 word splitting is done only on the output of word expansions,
377 dnl not every word. This closes a longstanding sh security hole.
378 ac_dummy="ifelse([$4], , $PATH, [$4])"
379 for ac_dir in $ac_dummy; do
380 test -z "$ac_dir" && ac_dir=.
381 if test -f $ac_dir/$ac_word; then
382 gcc_cv_path_$1="$ac_dir/$ac_word"
387 dnl If no 3rd arg is given, leave the cache variable unset,
388 dnl so GCC_PATH_PROGS will keep looking.
389 ifelse([$3], , , [ test -z "[$]gcc_cv_path_$1" && gcc_cv_path_$1="$3"
394 if test -n "[$]$1"; then
402 # Check whether mmap can map an arbitrary page from /dev/zero or with
403 # MAP_ANONYMOUS, without MAP_FIXED.
404 AC_DEFUN([AC_FUNC_MMAP_ANYWHERE],
405 [AC_CHECK_FUNCS(getpagesize)
406 # The test program for the next two tests is the same except for one
408 changequote({{{,}}})dnl
409 {{{cat >ct-mmap.inc <<'EOF'
410 #include <sys/types.h>
411 #include <sys/mman.h>
417 #if !defined (MAP_ANONYMOUS) && defined (MAP_ANON)
418 # define MAP_ANONYMOUS MAP_ANON
421 /* This mess was copied from the GNU getpagesize.h. */
422 #ifndef HAVE_GETPAGESIZE
423 # ifdef HAVE_UNISTD_H
427 /* Assume that all systems that can run configure have sys/param.h. */
428 # ifndef HAVE_SYS_PARAM_H
429 # define HAVE_SYS_PARAM_H 1
433 # define getpagesize() sysconf(_SC_PAGESIZE)
434 # else /* no _SC_PAGESIZE */
435 # ifdef HAVE_SYS_PARAM_H
436 # include <sys/param.h>
437 # ifdef EXEC_PAGESIZE
438 # define getpagesize() EXEC_PAGESIZE
439 # else /* no EXEC_PAGESIZE */
441 # define getpagesize() NBPG * CLSIZE
444 # endif /* no CLSIZE */
447 # define getpagesize() NBPC
450 # define getpagesize() PAGESIZE
451 # endif /* PAGESIZE */
452 # endif /* no NBPC */
453 # endif /* no NBPG */
454 # endif /* no EXEC_PAGESIZE */
455 # else /* no HAVE_SYS_PARAM_H */
456 # define getpagesize() 8192 /* punt totally */
457 # endif /* no HAVE_SYS_PARAM_H */
458 # endif /* no _SC_PAGESIZE */
460 #endif /* no HAVE_GETPAGESIZE */
463 # define MAP_FAILED -1
467 #define perror_exit(str, val) \
468 do { perror(str); exit(val); } while (0)
470 /* Some versions of cygwin mmap require that munmap is called with the
471 same parameters as mmap. GCC expects that this is not the case.
472 Test for various forms of this problem. Warning - icky signal games. */
474 static sigset_t unblock_sigsegv;
484 return (char *) mmap (0, size, PROT_READ|PROT_WRITE,
485 MAP_PRIVATE|MAP_ANONYMOUS, -1, 0);
487 return (char *) mmap (0, size, PROT_READ|PROT_WRITE,
488 MAP_PRIVATE, devzero, 0);
496 sigprocmask (SIG_UNBLOCK, &unblock_sigsegv, 0);
500 /* Basic functionality test. */
504 char *x = anonmap (pg);
505 if (x == (char *) MAP_FAILED)
506 perror_exit("test 0 mmap", 2);
510 if (munmap(x, pg) < 0)
511 perror_exit("test 0 munmap", 3);
514 /* 1. If we map a 2-page region and unmap its second page, the first page
519 char *x = anonmap (pg * 2);
520 if (x == (char *)MAP_FAILED)
521 perror_exit ("test 1 mmap", 4);
523 signal (SIGSEGV, sigsegv);
525 perror_exit ("test 1 fault", 5);
530 if (munmap (x + pg, pg) < 0)
531 perror_exit ("test 1 munmap 1", 6);
537 perror_exit ("test 1 no fault", 7);
539 if (munmap (x, pg) < 0)
540 perror_exit ("test 1 munmap 2", 8);
543 /* 2. If we map a 2-page region and unmap its first page, the second
548 char *x = anonmap (pg * 2);
549 if (x == (char *)MAP_FAILED)
550 perror_exit ("test 2 mmap", 9);
552 signal (SIGSEGV, sigsegv);
554 perror_exit ("test 2 fault", 10);
559 if (munmap (x, pg) < 0)
560 perror_exit ("test 2 munmap 1", 11);
567 perror_exit ("test 2 no fault", 12);
570 if (munmap (x+pg, pg) < 0)
571 perror_exit ("test 2 munmap 2", 13);
574 /* 3. If we map two adjacent 1-page regions and unmap them both with
575 one munmap, both must go away.
577 Getting two adjacent 1-page regions with two mmap calls is slightly
578 tricky. All OS's tested skip over already-allocated blocks; therefore
579 we have been careful to unmap all allocated regions in previous tests.
580 HP/UX allocates pages backward in memory. No OS has yet been observed
581 to be so perverse as to leave unmapped space between consecutive calls
590 if (x == (char *)MAP_FAILED)
591 perror_exit ("test 3 mmap 1", 14);
593 if (y == (char *)MAP_FAILED)
594 perror_exit ("test 3 mmap 2", 15);
602 fprintf (stderr, "test 3 nonconsecutive pages - %lx, %lx\n",
603 (unsigned long)x, (unsigned long)y);
608 signal (SIGSEGV, sigsegv);
610 perror_exit ("test 3 fault", 17);
615 if (munmap (x, pg*2) < 0)
616 perror_exit ("test 3 munmap", 18);
621 perror_exit ("test 3 no fault 1", 19);
624 signal (SIGSEGV, sigsegv);
628 perror_exit ("test 3 no fault 2", 20);
635 sigemptyset (&unblock_sigsegv);
636 sigaddset (&unblock_sigsegv, SIGSEGV);
639 devzero = open ("/dev/zero", O_RDWR);
641 perror_exit ("open /dev/zero", 1);
654 AC_CACHE_CHECK(for working mmap from /dev/zero,
655 ac_cv_func_mmap_dev_zero,
657 [#include "ct-mmap.inc"],
658 ac_cv_func_mmap_dev_zero=yes,
660 then ac_cv_func_mmap_dev_zero=no
661 else ac_cv_func_mmap_dev_zero=buggy
663 # If this is not cygwin, and /dev/zero is a character device, it's probably
664 # safe to assume it works.
666 cygwin* | win32 | pe | mingw* ) ac_cv_func_mmap_dev_zero=buggy ;;
667 * ) if test -c /dev/zero
668 then ac_cv_func_mmap_dev_zero=yes
669 else ac_cv_func_mmap_dev_zero=no
673 if test $ac_cv_func_mmap_dev_zero = yes; then
674 AC_DEFINE(HAVE_MMAP_DEV_ZERO, 1,
675 [Define if mmap can get us zeroed pages from /dev/zero.])
678 AC_CACHE_CHECK([for working mmap with MAP_ANON(YMOUS)],
679 ac_cv_func_mmap_anon,
681 [#define USE_MAP_ANON
682 #include "ct-mmap.inc"],
683 ac_cv_func_mmap_anon=yes,
685 then ac_cv_func_mmap_anon=no
686 else ac_cv_func_mmap_anon=buggy
688 # Unlike /dev/zero, it is not safe to assume MAP_ANON(YMOUS) works
689 # just because it's there. Some SCO Un*xen define it but don't implement it.
690 ac_cv_func_mmap_anon=no)
692 if test $ac_cv_func_mmap_anon = yes; then
693 AC_DEFINE(HAVE_MMAP_ANON, 1,
694 [Define if mmap can get us zeroed pages using MAP_ANON(YMOUS).])
699 # Check whether mmap can map a plain file, without MAP_FIXED.
700 AC_DEFUN([AC_FUNC_MMAP_FILE],
701 [AC_CACHE_CHECK(for working mmap of a file, ac_cv_func_mmap_file,
702 [# Create a file one thousand bytes long.
703 for i in 1 2 3 4 5 6 7 8 9 0
704 do for j in 1 2 3 4 5 6 7 8 9 0
707 done > conftestdata$$
710 /* Test by Zack Weinberg. Modified from MMAP_ANYWHERE test by
711 Richard Henderson and Alexandre Oliva.
712 Check whether read-only mmap of a plain file works. */
713 #include <sys/types.h>
714 #include <sys/stat.h>
716 #include <sys/mman.h>
724 fd = open("conftestdata$$", O_RDONLY);
731 x = (char*)mmap(0, st.st_size, PROT_READ, MAP_PRIVATE, fd, 0);
732 if (x == (char *) -1)
735 if (x[0] != '1' || x[1] != ' ' || x[2] != '1' || x[3] != ' ')
738 if (munmap(x, st.st_size) < 0)
742 }], ac_cv_func_mmap_file=yes, ac_cv_func_mmap_file=no,
743 ac_cv_func_mmap_file=no)])
744 if test $ac_cv_func_mmap_file = yes; then
745 AC_DEFINE(HAVE_MMAP_FILE, 1,
746 [Define if read-only mmap of a plain file works.])
750 dnl Locate a program and check that its version is acceptable.
751 dnl AC_PROG_CHECK_VER(var, name, version-switch,
752 dnl version-extract-regexp, version-glob)
753 AC_DEFUN(gcc_AC_CHECK_PROG_VER,
754 [AC_CHECK_PROG([$1], [$2], [$2])
755 if test -n "[$]$1"; then
756 # Found it, now check the version.
757 AC_CACHE_CHECK(for modern $2, gcc_cv_prog_$2_modern,
758 [changequote(<<,>>)dnl
759 ac_prog_version=`<<$>>$1 $3 2>&1 |
760 sed -n 's/^.*patsubst(<<$4>>,/,\/).*$/\1/p'`
762 echo "configure:__oline__: version of $2 is $ac_prog_version" >&AC_FD_CC
763 changequote(<<,>>)dnl
764 case $ac_prog_version in
765 '') gcc_cv_prog_$2_modern=no;;
767 gcc_cv_prog_$2_modern=yes;;
768 *) gcc_cv_prog_$2_modern=no;;
773 gcc_cv_prog_$2_modern=no
777 dnl Determine if enumerated bitfields are unsigned. ISO C says they can
778 dnl be either signed or unsigned.
780 AC_DEFUN(gcc_AC_C_ENUM_BF_UNSIGNED,
781 [AC_CACHE_CHECK(for unsigned enumerated bitfields, gcc_cv_enum_bf_unsigned,
782 [AC_TRY_RUN(#include <stdlib.h>
783 enum t { BLAH = 128 } ;
784 struct s_t { enum t member : 8; } s ;
788 if (s.member < 0) exit(1);
791 }, gcc_cv_enum_bf_unsigned=yes, gcc_cv_enum_bf_unsigned=no, gcc_cv_enum_bf_unsigned=yes)])
792 if test $gcc_cv_enum_bf_unsigned = yes; then
793 AC_DEFINE(ENUM_BITFIELDS_ARE_UNSIGNED, 1,
794 [Define if enumerated bitfields are treated as unsigned values.])
797 dnl Host type sizes probe.
798 dnl By Kaveh R. Ghazi. One typo fixed since.
800 AC_DEFUN([gcc_AC_COMPILE_CHECK_SIZEOF],
801 [changequote(<<, >>)dnl
802 dnl The name to #define.
803 define(<<AC_TYPE_NAME>>, translit(sizeof_$1, [a-z *], [A-Z_P]))dnl
804 dnl The cache variable name.
805 define(<<AC_CV_NAME>>, translit(ac_cv_sizeof_$1, [ *], [_p]))dnl
807 AC_MSG_CHECKING(size of $1)
808 AC_CACHE_VAL(AC_CV_NAME,
809 [for ac_size in 4 8 1 2 16 $3 ; do # List sizes in rough order of prevalence.
810 AC_TRY_COMPILE([#include "confdefs.h"
811 #include <sys/types.h>
813 ], [switch (0) case 0: case (sizeof ($1) == $ac_size):;], AC_CV_NAME=$ac_size)
814 if test x$AC_CV_NAME != x ; then break; fi
817 if test x$AC_CV_NAME = x ; then
818 AC_MSG_ERROR([cannot determine a size for $1])
820 AC_MSG_RESULT($AC_CV_NAME)
821 AC_DEFINE_UNQUOTED(AC_TYPE_NAME, $AC_CV_NAME, [The number of bytes in type $1])
822 undefine([AC_TYPE_NAME])dnl
823 undefine([AC_CV_NAME])dnl
826 dnl Probe number of bits in a byte.
827 dnl Note C89 requires CHAR_BIT >= 8.
829 AC_DEFUN(gcc_AC_C_CHAR_BIT,
830 [AC_CACHE_CHECK(for CHAR_BIT, gcc_cv_decl_char_bit,
832 [#ifdef HAVE_LIMITS_H
837 #endif], gcc_cv_decl_char_bit=yes, gcc_cv_decl_char_bit=no)
839 if test $gcc_cv_decl_char_bit = no; then
840 AC_CACHE_CHECK(number of bits in a byte, gcc_cv_c_nbby,
843 while test $i -lt 65; do
846 case (unsigned char)((unsigned long)1 << $i) == ((unsigned long)1 << $i):
847 case (unsigned char)((unsigned long)1<<($i-1)) == ((unsigned long)1<<($i-1)):
849 [gcc_cv_c_nbby=$i; break])
852 test -z "$gcc_cv_c_nbby" && gcc_cv_c_nbby=failed
854 if test $gcc_cv_c_nbby = failed; then
855 AC_MSG_ERROR(cannot determine number of bits in a byte)
857 AC_DEFINE_UNQUOTED(CHAR_BIT, $gcc_cv_c_nbby,
858 [Define as the number of bits in a byte, if \`limits.h' doesn't.])
862 dnl Checking for long long.
863 dnl By Caolan McNamara <caolan@skynet.ie>
864 dnl Added check for __int64, Zack Weinberg <zackw@stanford.edu>
866 AC_DEFUN([gcc_AC_C_LONG_LONG],
867 [AC_CACHE_CHECK(for long long int, ac_cv_c_long_long,
868 [AC_TRY_COMPILE(,[long long int i;],
869 ac_cv_c_long_long=yes,
870 ac_cv_c_long_long=no)])
871 if test $ac_cv_c_long_long = yes; then
872 AC_DEFINE(HAVE_LONG_LONG, 1,
873 [Define if your compiler supports the \`long long' type.])
875 AC_CACHE_CHECK(for __int64, ac_cv_c___int64,
876 [AC_TRY_COMPILE(,[__int64 i;],
878 ac_cv_c___int64=no)])
879 if test $ac_cv_c___int64 = yes; then
880 AC_DEFINE(HAVE___INT64, 1,
881 [Define if your compiler supports the \`__int64' type.])
885 dnl Host character set probe.
886 dnl The EBCDIC values match the table in config/i370/i370.c;
887 dnl there are other versions of EBCDIC but GCC won't work with them.
889 AC_DEFUN([gcc_AC_C_CHARSET],
890 [AC_CACHE_CHECK(execution character set, ac_cv_c_charset,
892 [#if '\n' == 0x0A && ' ' == 0x20 && '0' == 0x30 \
893 && 'A' == 0x41 && 'a' == 0x61 && '!' == 0x21
895 #endif], ac_cv_c_charset=ASCII)
896 if test x${ac_cv_c_charset+set} != xset; then
898 [#if '\n' == 0x15 && ' ' == 0x40 && '0' == 0xF0 \
899 && 'A' == 0xC1 && 'a' == 0x81 && '!' == 0x5A
901 #endif], ac_cv_c_charset=EBCDIC)
903 if test x${ac_cv_c_charset+set} != xset; then
904 ac_cv_c_charset=unknown
906 if test $ac_cv_c_charset = unknown; then
907 AC_MSG_ERROR([*** Cannot determine host character set.])
908 elif test $ac_cv_c_charset = EBCDIC; then
909 AC_DEFINE(HOST_EBCDIC, 1,
910 [Define if the host execution character set is EBCDIC.])
913 dnl Utility macro used by next two tests.
914 dnl AC_EXAMINE_OBJECT(C source code,
915 dnl commands examining object file,
916 dnl [commands to run if compile failed]):
918 dnl Compile the source code to an object file; then convert it into a
919 dnl printable representation. All unprintable characters and
920 dnl asterisks (*) are replaced by dots (.). All white space is
921 dnl deleted. Newlines (ASCII 0x10) in the input are preserved in the
922 dnl output, but runs of newlines are compressed to a single newline.
923 dnl Finally, line breaks are forcibly inserted so that no line is
924 dnl longer than 80 columns and the file ends with a newline. The
925 dnl result of all this processing is in the file conftest.dmp, which
926 dnl may be examined by the commands in the second argument.
928 AC_DEFUN([gcc_AC_EXAMINE_OBJECT],
931 dnl Next bit cribbed from AC_TRY_COMPILE.
932 cat > conftest.$ac_ext <<EOF
933 [#line __oline__ "configure"
934 #include "confdefs.h"
937 if AC_TRY_EVAL(ac_compile); then
939 sed ['s/^[0-7]*[ ]*/ /
942 s/ [0-9][0-9][0-9]/./g
956 dnl Host endianness probe.
957 dnl This tests byte-within-word endianness. GCC actually needs
958 dnl to know word-within-larger-object endianness. They are the
959 dnl same on all presently supported hosts.
960 dnl Differs from AC_C_BIGENDIAN in that it does not require
961 dnl running a program on the host, and it defines the macro we
964 AC_DEFUN([gcc_AC_C_COMPILE_ENDIAN],
965 [AC_CACHE_CHECK(byte ordering, ac_cv_c_compile_endian,
966 [ac_cv_c_compile_endian=unknown
967 gcc_AC_EXAMINE_OBJECT([
971 /* This structure must have no internal padding. */
973 char prefix[sizeof "\nendian:" - 1];
978 #if SIZEOF_SHORT == 4
979 ('A' << (CHAR_BIT * 3)) | ('B' << (CHAR_BIT * 2)) |
981 ('A' << CHAR_BIT) | 'B',
984 [if grep 'endian:AB' conftest.dmp >/dev/null 2>&1; then
985 ac_cv_c_compile_endian=big-endian
986 elif grep 'endian:BA' conftest.dmp >/dev/null 2>&1; then
987 ac_cv_c_compile_endian=little-endian
990 if test $ac_cv_c_compile_endian = unknown; then
991 AC_MSG_ERROR([*** unable to determine endianness])
992 elif test $ac_cv_c_compile_endian = big-endian; then
993 AC_DEFINE(HOST_WORDS_BIG_ENDIAN, 1,
994 [Define if the host machine stores words of multi-word integers in
999 dnl Floating point format probe.
1000 dnl The basic concept is the same as the above: grep the object
1001 dnl file for an interesting string. We have to watch out for
1002 dnl rounding changing the values in the object, however; this is
1003 dnl handled by ignoring the least significant byte of the float.
1005 dnl Does not know about VAX G-float or C4x idiosyncratic format.
1006 dnl It does know about PDP-10 idiosyncratic format, but this is
1007 dnl not presently supported by GCC. S/390 "binary floating point"
1008 dnl is in fact IEEE (but maybe we should have that in EBCDIC as well
1011 AC_DEFUN([gcc_AC_C_FLOAT_FORMAT],
1012 [AC_CACHE_CHECK(floating point format, ac_cv_c_float_format,
1013 [gcc_AC_EXAMINE_OBJECT(
1014 [/* This will not work unless sizeof(double) == 8. */
1015 extern char sizeof_double_must_be_8 [sizeof(double) == 8 ? 1 : -1];
1017 /* This structure must have no internal padding. */
1018 struct possibility {
1024 #define C(cand) { "\nformat:", cand, ":tamrof\n" }
1025 struct possibility table [] =
1027 C( 3.25724264705901305206e+01), /* @@IEEEFP - IEEE 754 */
1028 C( 3.53802595280598432000e+18), /* D__float - VAX */
1029 C( 5.32201830133125317057e-19), /* D.PDP-10 - PDP-10 - the dot is 0x13a */
1030 C( 1.77977764695171661377e+10), /* IBMHEXFP - s/390 format, ascii */
1031 C(-5.22995989424860458374e+10) /* IBMHEXFP - s/390 format, EBCDIC */
1033 [if grep 'format:.@IEEEF.:tamrof' conftest.dmp >/dev/null 2>&1; then
1034 ac_cv_c_float_format='IEEE (big-endian)'
1035 elif grep 'format:.I@@PFE.:tamrof' conftest.dmp >/dev/null 2>&1; then
1036 ac_cv_c_float_format='IEEE (big-endian)'
1037 elif grep 'format:.FEEEI@.:tamrof' conftest.dmp >/dev/null 2>&1; then
1038 ac_cv_c_float_format='IEEE (little-endian)'
1039 elif grep 'format:.EFP@@I.:tamrof' conftest.dmp >/dev/null 2>&1; then
1040 ac_cv_c_float_format='IEEE (little-endian)'
1041 elif grep 'format:.__floa.:tamrof' conftest.dmp >/dev/null 2>&1; then
1042 ac_cv_c_float_format='VAX D-float'
1043 elif grep 'format:..PDP-1.:tamrof' conftest.dmp >/dev/null 2>&1; then
1044 ac_cv_c_float_format='PDP-10'
1045 elif grep 'format:.BMHEXF.:tamrof' conftest.dmp >/dev/null 2>&1; then
1046 ac_cv_c_float_format='IBM 370 hex'
1048 AC_MSG_ERROR(Unknown floating point format)
1050 [AC_MSG_ERROR(compile failed)])
1052 # IEEE is the default format. If the float endianness isn't the same
1053 # as the integer endianness, we have to set FLOAT_WORDS_BIG_ENDIAN
1054 # (which is a tristate: yes, no, default). This is only an issue with
1055 # IEEE; the other formats are only supported by a few machines each,
1056 # all with the same endianness.
1059 case $ac_cv_c_float_format in
1060 'IEEE (big-endian)' )
1061 if test $ac_cv_c_compile_endian = little-endian; then
1065 'IEEE (little-endian)' )
1066 if test $ac_cv_c_compile_endian = big-endian; then
1071 format=VAX_FLOAT_FORMAT
1074 format=PDP10_FLOAT_FORMAT
1077 format=IBM_FLOAT_FORMAT
1080 if test -n "$format"; then
1081 AC_DEFINE_UNQUOTED(HOST_FLOAT_FORMAT, $format,
1082 [Define to the floating point format of the host machine, if not IEEE.])
1084 if test -n "$fbigend"; then
1085 AC_DEFINE_UNQUOTED(HOST_FLOAT_WORDS_BIG_ENDIAN, $fbigend,
1086 [Define to 1 if the host machine stores floating point numbers in
1087 memory with the word containing the sign bit at the lowest address,
1088 or to 0 if it does it the other way around.
1090 This macro should not be defined if the ordering is the same as for
1091 multi-word integers.])
1097 dnl From Bruno Haible.
1099 AC_DEFUN([AM_ICONV],
1101 dnl Some systems have iconv in libc, some have it in libiconv (OSF/1 and
1102 dnl those with the standalone portable GNU libiconv installed).
1104 AC_ARG_WITH([libiconv-prefix],
1105 [ --with-libiconv-prefix=DIR search for libiconv in DIR/include and DIR/lib], [
1106 for dir in `echo "$withval" | tr : ' '`; do
1107 if test -d $dir/include; then CPPFLAGS="$CPPFLAGS -I$dir/include"; fi
1108 if test -d $dir/lib; then LDFLAGS="$LDFLAGS -L$dir/lib"; fi
1112 AC_CACHE_CHECK(for iconv, am_cv_func_iconv, [
1113 am_cv_func_iconv="no, consider installing GNU libiconv"
1115 AC_TRY_LINK([#include <stdlib.h>
1116 #include <iconv.h>],
1117 [iconv_t cd = iconv_open("","");
1118 iconv(cd,NULL,NULL,NULL,NULL);
1120 am_cv_func_iconv=yes)
1121 if test "$am_cv_func_iconv" != yes; then
1122 am_save_LIBS="$LIBS"
1123 LIBS="$LIBS -liconv"
1124 AC_TRY_LINK([#include <stdlib.h>
1125 #include <iconv.h>],
1126 [iconv_t cd = iconv_open("","");
1127 iconv(cd,NULL,NULL,NULL,NULL);
1130 am_cv_func_iconv=yes)
1131 LIBS="$am_save_LIBS"
1134 if test "$am_cv_func_iconv" = yes; then
1135 AC_DEFINE(HAVE_ICONV, 1, [Define if you have the iconv() function.])
1136 AC_MSG_CHECKING([for iconv declaration])
1137 AC_CACHE_VAL(am_cv_proto_iconv, [
1145 #if defined(__STDC__) || defined(__cplusplus)
1146 size_t iconv (iconv_t cd, char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft);
1150 ], [], am_cv_proto_iconv_arg1="", am_cv_proto_iconv_arg1="const")
1151 am_cv_proto_iconv="extern size_t iconv (iconv_t cd, $am_cv_proto_iconv_arg1 char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft);"])
1152 am_cv_proto_iconv=`echo "[$]am_cv_proto_iconv" | tr -s ' ' | sed -e 's/( /(/'`
1153 AC_MSG_RESULT([$]{ac_t:-
1154 }[$]am_cv_proto_iconv)
1155 AC_DEFINE_UNQUOTED(ICONV_CONST, $am_cv_proto_iconv_arg1,
1156 [Define as const if the declaration of iconv() needs const.])
1159 if test "$am_cv_lib_iconv" = yes; then
1165 ### Gettext macros begin here.
1166 ### Changes for GCC marked by 'dnl GCC LOCAL'.
1167 ### Note iconv.m4 appears above, as it's used for other reasons.
1171 dnl From Bruno Haible.
1173 AC_DEFUN([AM_LANGINFO_CODESET],
1175 AC_CACHE_CHECK([for nl_langinfo and CODESET], am_cv_langinfo_codeset,
1176 [AC_TRY_LINK([#include <langinfo.h>],
1177 [char* cs = nl_langinfo(CODESET);],
1178 am_cv_langinfo_codeset=yes,
1179 am_cv_langinfo_codeset=no)
1181 if test $am_cv_langinfo_codeset = yes; then
1182 AC_DEFINE(HAVE_LANGINFO_CODESET, 1,
1183 [Define if you have <langinfo.h> and nl_langinfo(CODESET).])
1188 # This test replaces the one in autoconf.
1189 # Currently this macro should have the same name as the autoconf macro
1190 # because gettext's gettext.m4 (distributed in the automake package)
1191 # still uses it. Otherwise, the use in gettext.m4 makes autoheader
1192 # give these diagnostics:
1193 # configure.in:556: AC_TRY_COMPILE was called before AC_ISC_POSIX
1194 # configure.in:556: AC_TRY_RUN was called before AC_ISC_POSIX
1196 undefine([AC_ISC_POSIX])
1198 AC_DEFUN([AC_ISC_POSIX],
1200 dnl This test replaces the obsolescent AC_ISC_POSIX kludge.
1201 dnl GCC LOCAL: Use AC_SEARCH_LIBS.
1202 AC_SEARCH_LIBS(strerror, cposix)
1208 # Test for the GNU C Library, version 2.1 or newer.
1209 # From Bruno Haible.
1211 AC_DEFUN([jm_GLIBC21],
1213 AC_CACHE_CHECK(whether we are using the GNU C Library 2.1 or newer,
1214 ac_cv_gnu_library_2_1,
1215 [AC_EGREP_CPP([Lucky GNU user],
1217 #include <features.h>
1218 #ifdef __GNU_LIBRARY__
1219 #if (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 1) || (__GLIBC__ > 2)
1224 ac_cv_gnu_library_2_1=yes,
1225 ac_cv_gnu_library_2_1=no)
1229 GLIBC21="$ac_cv_gnu_library_2_1"
1233 # Check whether LC_MESSAGES is available in <locale.h>.
1234 # Ulrich Drepper <drepper@cygnus.com>, 1995.
1236 # This file can be copied and used freely without restrictions. It can
1237 # be used in projects which are not available under the GNU General Public
1238 # License or the GNU Library General Public License but which still want
1239 # to provide support for the GNU gettext functionality.
1240 # Please note that the actual code of the GNU gettext library is covered
1241 # by the GNU Library General Public License, and the rest of the GNU
1242 # gettext package package is covered by the GNU General Public License.
1243 # They are *not* in the public domain.
1247 AC_DEFUN([AM_LC_MESSAGES],
1248 [if test $ac_cv_header_locale_h = yes; then
1249 AC_CACHE_CHECK([for LC_MESSAGES], am_cv_val_LC_MESSAGES,
1250 [AC_TRY_LINK([#include <locale.h>], [return LC_MESSAGES],
1251 am_cv_val_LC_MESSAGES=yes, am_cv_val_LC_MESSAGES=no)])
1252 if test $am_cv_val_LC_MESSAGES = yes; then
1253 AC_DEFINE(HAVE_LC_MESSAGES, 1,
1254 [Define if your <locale.h> file defines LC_MESSAGES.])
1258 # Search path for a program which passes the given test.
1259 # Ulrich Drepper <drepper@cygnus.com>, 1996.
1261 # This file can be copied and used freely without restrictions. It can
1262 # be used in projects which are not available under the GNU General Public
1263 # License or the GNU Library General Public License but which still want
1264 # to provide support for the GNU gettext functionality.
1265 # Please note that the actual code of the GNU gettext library is covered
1266 # by the GNU Library General Public License, and the rest of the GNU
1267 # gettext package package is covered by the GNU General Public License.
1268 # They are *not* in the public domain.
1272 dnl AM_PATH_PROG_WITH_TEST(VARIABLE, PROG-TO-CHECK-FOR,
1273 dnl TEST-PERFORMED-ON-FOUND_PROGRAM [, VALUE-IF-NOT-FOUND [, PATH]])
1274 AC_DEFUN([AM_PATH_PROG_WITH_TEST],
1275 [# Extract the first word of "$2", so it can be a program name with args.
1276 set dummy $2; ac_word=[$]2
1277 AC_MSG_CHECKING([for $ac_word])
1278 AC_CACHE_VAL(ac_cv_path_$1,
1281 ac_cv_path_$1="[$]$1" # Let the user override the test with a path.
1284 IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:"
1285 for ac_dir in ifelse([$5], , $PATH, [$5]); do
1286 test -z "$ac_dir" && ac_dir=.
1287 if test -f $ac_dir/$ac_word; then
1289 ac_cv_path_$1="$ac_dir/$ac_word"
1295 dnl If no 4th arg is given, leave the cache variable unset,
1296 dnl so AC_PATH_PROGS will keep looking.
1297 ifelse([$4], , , [ test -z "[$]ac_cv_path_$1" && ac_cv_path_$1="$4"
1302 if test ifelse([$4], , [-n "[$]$1"], ["[$]$1" != "$4"]); then
1303 AC_MSG_RESULT([$]$1)
1310 # Macro to add for using GNU gettext.
1311 # Ulrich Drepper <drepper@cygnus.com>, 1995.
1313 # This file can be copied and used freely without restrictions. It can
1314 # be used in projects which are not available under the GNU General Public
1315 # License or the GNU Library General Public License but which still want
1316 # to provide support for the GNU gettext functionality.
1317 # Please note that the actual code of the GNU gettext library is covered
1318 # by the GNU Library General Public License, and the rest of the GNU
1319 # gettext package package is covered by the GNU General Public License.
1320 # They are *not* in the public domain.
1324 dnl Usage: AM_WITH_NLS([TOOLSYMBOL], [NEEDSYMBOL], [LIBDIR]).
1325 dnl If TOOLSYMBOL is specified and is 'use-libtool', then a libtool library
1326 dnl $(top_builddir)/intl/libintl.la will be created (shared and/or static,
1327 dnl depending on --{enable,disable}-{shared,static} and on the presence of
1328 dnl AM-DISABLE-SHARED). Otherwise, a static library
1329 dnl $(top_builddir)/intl/libintl.a will be created.
1330 dnl If NEEDSYMBOL is specified and is 'need-ngettext', then GNU gettext
1331 dnl implementations (in libc or libintl) without the ngettext() function
1332 dnl will be ignored.
1333 dnl LIBDIR is used to find the intl libraries. If empty,
1334 dnl the value `$(top_builddir)/intl/' is used.
1336 dnl The result of the configuration is one of three cases:
1337 dnl 1) GNU gettext, as included in the intl subdirectory, will be compiled
1339 dnl Catalog format: GNU --> install in $(datadir)
1340 dnl Catalog extension: .mo after installation, .gmo in source tree
1341 dnl 2) GNU gettext has been found in the system's C library.
1342 dnl Catalog format: GNU --> install in $(datadir)
1343 dnl Catalog extension: .mo after installation, .gmo in source tree
1344 dnl 3) No internationalization, always use English msgid.
1345 dnl Catalog format: none
1346 dnl Catalog extension: none
1347 dnl The use of .gmo is historical (it was needed to avoid overwriting the
1348 dnl GNU format catalogs when building on a platform with an X/Open gettext),
1349 dnl but we keep it in order not to force irrelevant filename changes on the
1352 AC_DEFUN([AM_WITH_NLS],
1353 [AC_MSG_CHECKING([whether NLS is requested])
1354 dnl Default is enabled NLS
1356 [ --disable-nls do not use Native Language Support],
1357 USE_NLS=$enableval, USE_NLS=yes)
1358 AC_MSG_RESULT($USE_NLS)
1361 BUILD_INCLUDED_LIBINTL=no
1362 USE_INCLUDED_LIBINTL=no
1363 dnl GCC LOCAL: Separate concept of link command line from dependencies.
1367 dnl If we use NLS figure out what method
1368 if test "$USE_NLS" = "yes"; then
1369 AC_DEFINE(ENABLE_NLS, 1,
1370 [Define to 1 if translation of program messages to the user's native language
1372 AC_MSG_CHECKING([whether included gettext is requested])
1373 AC_ARG_WITH(included-gettext,
1374 [ --with-included-gettext use the GNU gettext library included here],
1375 nls_cv_force_use_gnu_gettext=$withval,
1376 nls_cv_force_use_gnu_gettext=no)
1377 AC_MSG_RESULT($nls_cv_force_use_gnu_gettext)
1379 nls_cv_use_gnu_gettext="$nls_cv_force_use_gnu_gettext"
1380 if test "$nls_cv_force_use_gnu_gettext" != "yes"; then
1381 dnl User does not insist on using GNU NLS library. Figure out what
1382 dnl to use. If GNU gettext is available we use this. Else we have
1383 dnl to fall back to GNU NLS library.
1386 dnl Add a version number to the cache macros.
1387 define(gt_cv_func_gnugettext_libc, [gt_cv_func_gnugettext]ifelse([$2], need-ngettext, 2, 1)[_libc])
1388 define(gt_cv_func_gnugettext_libintl, [gt_cv_func_gnugettext]ifelse([$2], need-ngettext, 2, 1)[_libintl])
1390 dnl GCC LOCAL: Expose presence of libintl.h to C code.
1391 AC_CHECK_HEADER(libintl.h,
1392 [AC_DEFINE([HAVE_LIBINTL_H], 1,
1393 [Define if you have the <libintl.h> header file.])
1394 AC_CACHE_CHECK([for GNU gettext in libc], gt_cv_func_gnugettext_libc,
1395 [AC_TRY_LINK([#include <libintl.h>
1396 extern int _nl_msg_cat_cntr;],
1397 [bindtextdomain ("", "");
1398 return (int) gettext ("")]ifelse([$2], need-ngettext, [ + (int) ngettext ("", "", 0)], [])[ + _nl_msg_cat_cntr],
1399 gt_cv_func_gnugettext_libc=yes,
1400 gt_cv_func_gnugettext_libc=no)])
1402 if test "$gt_cv_func_gnugettext_libc" != "yes"; then
1403 AC_CACHE_CHECK([for GNU gettext in libintl],
1404 gt_cv_func_gnugettext_libintl,
1405 [gt_save_LIBS="$LIBS"
1406 LIBS="$LIBS -lintl $LIBICONV"
1407 AC_TRY_LINK([#include <libintl.h>
1408 extern int _nl_msg_cat_cntr;],
1409 [bindtextdomain ("", "");
1410 return (int) gettext ("")]ifelse([$2], need-ngettext, [ + (int) ngettext ("", "", 0)], [])[ + _nl_msg_cat_cntr],
1411 gt_cv_func_gnugettext_libintl=yes,
1412 gt_cv_func_gnugettext_libintl=no)
1413 LIBS="$gt_save_LIBS"])
1416 dnl If an already present or preinstalled GNU gettext() is found,
1417 dnl use it. But if this macro is used in GNU gettext, and GNU
1418 dnl gettext is already preinstalled in libintl, we update this
1419 dnl libintl. (Cf. the install rule in intl/Makefile.in.)
1420 if test "$gt_cv_func_gnugettext_libc" = "yes" \
1421 || { test "$gt_cv_func_gnugettext_libintl" = "yes" \
1422 && test "$PACKAGE" != gettext; }; then
1423 AC_DEFINE(HAVE_GETTEXT, 1,
1424 [Define if the GNU gettext() function is already present or preinstalled.])
1426 if test "$gt_cv_func_gnugettext_libintl" = "yes"; then
1427 dnl If iconv() is in a separate libiconv library, then anyone
1428 dnl linking with libintl{.a,.so} also needs to link with
1430 INTLLIBS="-lintl $LIBICONV"
1433 gt_save_LIBS="$LIBS"
1434 LIBS="$LIBS $INTLLIBS"
1435 AC_CHECK_FUNCS(dcgettext)
1436 LIBS="$gt_save_LIBS"
1438 dnl Search for GNU msgfmt in the PATH.
1439 AM_PATH_PROG_WITH_TEST(MSGFMT, msgfmt,
1440 [$ac_dir/$ac_word --statistics /dev/null >/dev/null 2>&1], :)
1441 AC_PATH_PROG(GMSGFMT, gmsgfmt, $MSGFMT)
1443 dnl Search for GNU xgettext in the PATH.
1444 AM_PATH_PROG_WITH_TEST(XGETTEXT, xgettext,
1445 [$ac_dir/$ac_word --omit-header /dev/null >/dev/null 2>&1], :)
1451 if test "$CATOBJEXT" = "NONE"; then
1452 dnl GNU gettext is not found in the C library.
1453 dnl Fall back on GNU gettext library.
1454 nls_cv_use_gnu_gettext=yes
1458 if test "$nls_cv_use_gnu_gettext" = "yes"; then
1459 dnl Mark actions used to generate GNU NLS library.
1460 INTLOBJS="\$(GETTOBJS)"
1461 AM_PATH_PROG_WITH_TEST(MSGFMT, msgfmt,
1462 [$ac_dir/$ac_word --statistics /dev/null >/dev/null 2>&1], :)
1463 AC_PATH_PROG(GMSGFMT, gmsgfmt, $MSGFMT)
1464 AM_PATH_PROG_WITH_TEST(XGETTEXT, xgettext,
1465 [$ac_dir/$ac_word --omit-header /dev/null >/dev/null 2>&1], :)
1467 BUILD_INCLUDED_LIBINTL=yes
1468 USE_INCLUDED_LIBINTL=yes
1470 INTLLIBS="ifelse([$3],[],\$(top_builddir)/intl,[$3])/libintl.ifelse([$1], use-libtool, [l], [])a $LIBICONV"
1471 INTLDEPS="ifelse([$3],[],\$(top_builddir)/intl,[$3])/libintl.ifelse([$1], use-libtool, [l], [])a"
1472 LIBS=`echo " $LIBS " | sed -e 's/ -lintl / /' -e 's/^ //' -e 's/ $//'`
1475 dnl This could go away some day; the PATH_PROG_WITH_TEST already does it.
1476 dnl Test whether we really found GNU msgfmt.
1477 if test "$GMSGFMT" != ":"; then
1478 dnl If it is no GNU msgfmt we define it as : so that the
1479 dnl Makefiles still can work.
1480 if $GMSGFMT --statistics /dev/null >/dev/null 2>&1; then
1484 [found msgfmt program is not GNU msgfmt; ignore it])
1489 dnl This could go away some day; the PATH_PROG_WITH_TEST already does it.
1490 dnl Test whether we really found GNU xgettext.
1491 if test "$XGETTEXT" != ":"; then
1492 dnl If it is no GNU xgettext we define it as : so that the
1493 dnl Makefiles still can work.
1494 if $XGETTEXT --omit-header /dev/null >/dev/null 2>&1; then
1498 [found xgettext program is not GNU xgettext; ignore it])
1503 dnl We need to process the po/ directory.
1507 [for ac_file in $CONFIG_FILES; do
1508 # Support "outfile[:infile[:infile...]]"
1510 *:*) ac_file=`echo "$ac_file"|sed 's%:.*%%'` ;;
1512 # PO directories have a Makefile.in generated from Makefile.in.in.
1513 case "$ac_file" in */Makefile.in)
1514 # Adjust a relative srcdir.
1515 ac_dir=`echo "$ac_file"|sed 's%/[^/][^/]*$%%'`
1516 ac_dir_suffix="/`echo "$ac_dir"|sed 's%^\./%%'`"
1517 ac_dots=`echo "$ac_dir_suffix"|sed 's%/[^/]*%../%g'`
1518 # In autoconf-2.13 it is called $ac_given_srcdir.
1519 # In autoconf-2.50 it is called $srcdir.
1520 test -n "$ac_given_srcdir" || ac_given_srcdir="$srcdir"
1521 case "$ac_given_srcdir" in
1522 .) top_srcdir=`echo $ac_dots|sed 's%/$%%'` ;;
1523 /*) top_srcdir="$ac_given_srcdir" ;;
1524 *) top_srcdir="$ac_dots$ac_given_srcdir" ;;
1526 if test -f "$ac_given_srcdir/$ac_dir/POTFILES.in"; then
1527 rm -f "$ac_dir/POTFILES"
1528 test -n "$as_me" && echo "$as_me: creating $ac_dir/POTFILES" || echo "creating $ac_dir/POTFILES"
1529 sed -e "/^#/d" -e "/^[ ]*\$/d" -e "s,.*, $top_srcdir/& \\\\," -e "\$s/\(.*\) \\\\/\1/" < "$ac_given_srcdir/$ac_dir/POTFILES.in" > "$ac_dir/POTFILES"
1530 test -n "$as_me" && echo "$as_me: creating $ac_dir/Makefile" || echo "creating $ac_dir/Makefile"
1531 sed -e "/POTFILES =/r $ac_dir/POTFILES" "$ac_dir/Makefile.in" > "$ac_dir/Makefile"
1538 dnl If this is used in GNU gettext we have to set BUILD_INCLUDED_LIBINTL
1539 dnl to 'yes' because some of the testsuite requires it.
1540 if test "$PACKAGE" = gettext; then
1541 BUILD_INCLUDED_LIBINTL=yes
1544 dnl intl/plural.c is generated from intl/plural.y. It requires bison,
1545 dnl because plural.y uses bison specific features. It requires at least
1546 dnl bison-1.26 because earlier versions generate a plural.c that doesn't
1548 dnl bison is only needed for the maintainer (who touches plural.y). But in
1549 dnl order to avoid separate Makefiles or --enable-maintainer-mode, we put
1550 dnl the rule in general Makefile. Now, some people carelessly touch the
1551 dnl files or have a broken "make" program, hence the plural.c rule will
1552 dnl sometimes fire. To avoid an error, defines BISON to ":" if it is not
1553 dnl present or too old.
1554 AC_CHECK_PROGS([INTLBISON], [bison])
1555 if test -z "$INTLBISON"; then
1558 dnl Found it, now check the version.
1559 AC_MSG_CHECKING([version of bison])
1560 changequote(<<,>>)dnl
1561 ac_prog_version=`$INTLBISON --version 2>&1 | sed -n 's/^.*GNU Bison.* \([0-9]*\.[0-9.]*\).*$/\1/p'`
1562 case $ac_prog_version in
1563 '') ac_prog_version="v. ?.??, bad"; ac_verc_fail=yes;;
1564 1.2[6-9]* | 1.[3-9][0-9]* | [2-9].*)
1566 ac_prog_version="$ac_prog_version, ok"; ac_verc_fail=no;;
1567 *) ac_prog_version="$ac_prog_version, bad"; ac_verc_fail=yes;;
1569 AC_MSG_RESULT([$ac_prog_version])
1571 if test $ac_verc_fail = yes; then
1575 dnl GCC LOCAL: GMOFILES/POFILES removed as unnecessary.
1577 dnl Make all variables we use known to autoconf.
1578 AC_SUBST(BUILD_INCLUDED_LIBINTL)
1579 AC_SUBST(USE_INCLUDED_LIBINTL)
1586 dnl GCC LOCAL: Make USE_INCLUDED_LIBINTL visible to C code.
1587 if test $USE_INCLUDED_LIBINTL = yes; then
1588 AC_DEFINE([USE_INCLUDED_LIBINTL], 1,
1589 [Define to use the libintl included with this package instead of any
1590 version in the system libraries.])
1593 dnl For backward compatibility. Some configure.ins may be using this.
1595 nls_cv_header_libgt=
1597 dnl For backward compatibility. Some Makefiles may be using this.
1599 AC_SUBST(DATADIRNAME)
1601 dnl For backward compatibility. Some Makefiles may be using this.
1603 AC_SUBST(INSTOBJEXT)
1605 dnl For backward compatibility. Some Makefiles may be using this.
1610 dnl Usage: Just like AM_WITH_NLS, which see.
1611 AC_DEFUN([AM_GNU_GETTEXT],
1612 [AC_REQUIRE([AC_PROG_MAKE_SET])dnl
1613 AC_REQUIRE([AC_PROG_CC])dnl
1614 AC_REQUIRE([AC_CANONICAL_HOST])dnl
1615 AC_REQUIRE([AC_PROG_RANLIB])dnl
1616 AC_REQUIRE([AC_ISC_POSIX])dnl
1617 AC_REQUIRE([AC_HEADER_STDC])dnl
1618 AC_REQUIRE([AC_C_CONST])dnl
1619 AC_REQUIRE([AC_C_INLINE])dnl
1620 AC_REQUIRE([AC_TYPE_OFF_T])dnl
1621 AC_REQUIRE([AC_TYPE_SIZE_T])dnl
1622 AC_REQUIRE([AC_FUNC_ALLOCA])dnl
1623 dnl GCC LOCAL: Do not refer to AC_FUNC_MMAP, we have special needs.
1624 dnl AC_REQUIRE([AC_FUNC_MMAP])dnl
1625 AC_REQUIRE([jm_GLIBC21])dnl
1627 AC_CHECK_HEADERS([argz.h limits.h locale.h nl_types.h malloc.h stddef.h \
1628 stdlib.h string.h unistd.h sys/param.h])
1629 AC_CHECK_FUNCS([feof_unlocked fgets_unlocked getcwd getegid geteuid \
1630 getgid getuid mempcpy munmap putenv setenv setlocale stpcpy strchr strcasecmp \
1631 strdup strtoul tsearch __argz_count __argz_stringify __argz_next])
1636 AM_WITH_NLS([$1],[$2],[$3])
1638 dnl GCC LOCAL: The LINGUAS/ALL_LINGUAS/CATALOGS mess that was here
1639 dnl has been torn out and replaced with this more sensible scheme.
1640 if test "x$CATOBJEXT" != x; then
1641 AC_MSG_CHECKING(for catalogs to be installed)
1642 # Look for .po and .gmo files in the source directory.
1645 for cat in $srcdir/po/*$CATOBJEXT $srcdir/po/*.po; do
1646 # If there aren't any .gmo files the shell will give us the
1647 # literal string "../path/to/srcdir/po/*.gmo" which has to be
1649 case "$cat" in *\**)
1652 # The quadruple backslash is collapsed to a double backslash
1653 # by the backticks, then collapsed again by the double quotes,
1654 # leaving us with one backslash in the sed expression (right
1655 # before the dot that mustn't act as a wildcard). The dot to
1656 # be escaped in the second expression is hiding inside CATOBJEXT.
1657 cat=`echo $cat | sed -e "s!$srcdir/!!" -e "s!\\\\.po!$CATOBJEXT!"`
1658 lang=`echo $cat | sed -e 's!po/!!' -e "s!\\\\$CATOBJEXT!!"`
1659 # The user is allowed to set LINGUAS to a list of languages to
1660 # install catalogs for. If it's empty that means "all of them."
1661 if test "x$LINGUAS" = x; then
1662 CATALOGS="$CATALOGS $cat"
1663 XLINGUAS="$XLINGUAS $lang"
1665 case "$LINGUAS" in *$lang*)
1666 CATALOGS="$CATALOGS $cat"
1667 XLINGUAS="$XLINGUAS $lang"
1673 AC_MSG_RESULT($LINGUAS)
1676 dnl If the AC_CONFIG_AUX_DIR macro for autoconf is used we possibly
1677 dnl find the mkinstalldirs script in another subdir but $(top_srcdir).
1678 dnl Try to locate is.
1680 if test -n "$ac_aux_dir"; then
1681 MKINSTALLDIRS="$ac_aux_dir/mkinstalldirs"
1683 if test -z "$MKINSTALLDIRS"; then
1684 MKINSTALLDIRS="\$(top_srcdir)/mkinstalldirs"
1686 AC_SUBST(MKINSTALLDIRS)
1688 dnl Enable libtool support if the surrounding package wishes it.
1689 INTL_LIBTOOL_SUFFIX_PREFIX=ifelse([$1], use-libtool, [l], [])
1690 AC_SUBST(INTL_LIBTOOL_SUFFIX_PREFIX)