mirror of
git://git.sv.gnu.org/autoconf
synced 2025-02-17 14:01:27 +08:00
1999-10-31 Akim Demaille <akim@epita.fr>
Fix the compatibility of the compiling macros with C++.
* acgeneral.m4 (AC_TRY_COMPILE, AC_TRY_LINK, AC_CHECK_SIZEOF): Use
`int main () {...}', instead of `main () {...}'.
* acspecific.m4 (AC_TYPE_GETGROUPS, AC_FUNC_CLOSEDIR_VOID,
AC_FUNC_FNMATCH, AC_FUNC_GETPGRP, AC_FUNC_SETPGRP, AC_FUNC_VFORK,
AC_FUNC_WAIT3, AC_FUNC_ALLOCA, AC_FUNC_UTIME_NULL,
AC_FUNC_SETVBUF_REVERSED, AC_FUNC_MEMCMP, AC_C_CHAR_UNSIGNED,
AC_C_LONG_DOUBLE, AC_C_BIGENDIAN, AC_SYS_RESTARTABLE_SYSCALLS):
Likewise.
* acspecific.m4 (AC_FUNC_FNMATCH): Call
AC_CHECK_HEADERS(fnmatch.h), and include fnmatch.h in the compiled
code.
This commit is contained in:
Akim Demaille
parent
71a65156f8
commit
c2ff56bad5
16
ChangeLog
16
ChangeLog
@ -1,3 +1,19 @@
|
||||
1999-10-31 Akim Demaille <akim@epita.fr>
|
||||
|
||||
Fix the compatibility of the compiling macros with C++.
|
||||
|
||||
* acgeneral.m4 (AC_TRY_COMPILE, AC_TRY_LINK, AC_CHECK_SIZEOF): Use
|
||||
`int main () {...}', instead of `main () {...}'.
|
||||
* acspecific.m4 (AC_TYPE_GETGROUPS, AC_FUNC_CLOSEDIR_VOID,
|
||||
AC_FUNC_FNMATCH, AC_FUNC_GETPGRP, AC_FUNC_SETPGRP, AC_FUNC_VFORK,
|
||||
AC_FUNC_WAIT3, AC_FUNC_ALLOCA, AC_FUNC_UTIME_NULL,
|
||||
AC_FUNC_SETVBUF_REVERSED, AC_FUNC_MEMCMP, AC_C_CHAR_UNSIGNED,
|
||||
AC_C_LONG_DOUBLE, AC_C_BIGENDIAN, AC_SYS_RESTARTABLE_SYSCALLS):
|
||||
Likewise.
|
||||
* acspecific.m4 (AC_FUNC_FNMATCH): Call
|
||||
AC_CHECK_HEADERS(fnmatch.h), and include fnmatch.h in the compiled
|
||||
code.
|
||||
|
||||
1999-10-31 Akim Demaille <akim@epita.fr>
|
||||
|
||||
* acgeneral.m4 (AC_COMPILE_CHECK, AC_TRY_COMPILE,
|
||||
|
||||
33
acgeneral.m4
33
acgeneral.m4
@ -2578,9 +2578,15 @@ dnl [#]line __oline__ "[$]0"
|
||||
[#]line __oline__ "configure"
|
||||
#include "confdefs.h"
|
||||
[$1]
|
||||
int main() {
|
||||
int
|
||||
main ()
|
||||
{
|
||||
dnl Do *not* indent the following line: there may be CPP directives.
|
||||
dnl Don't move the `;' right after for the same reason.
|
||||
[$2]
|
||||
; return 0; }
|
||||
;
|
||||
return 0;
|
||||
}
|
||||
])EOF
|
||||
if AC_TRY_EVAL(ac_compile); then
|
||||
ifelse([$3], , :, [rm -rf conftest*
|
||||
@ -2620,13 +2626,19 @@ ifelse(AC_LANG, [FORTRAN77],
|
||||
end
|
||||
],
|
||||
[dnl This sometimes fails to find confdefs.h, for some reason.
|
||||
dnl [#]line __oline__ "[$]0"
|
||||
[#]line __oline__ "configure"
|
||||
dnl @PND@line __oline__ "[$]0"
|
||||
@PND@line __oline__ "configure"
|
||||
#include "confdefs.h"
|
||||
[$1]
|
||||
int main() {
|
||||
int
|
||||
main()
|
||||
{
|
||||
dnl Do *not* indent the following line: there may be CPP directives.
|
||||
dnl Don't move the `;' right after for the same reason.
|
||||
[$2]
|
||||
; return 0; }
|
||||
;
|
||||
return 0;
|
||||
}
|
||||
])EOF
|
||||
if AC_TRY_EVAL(ac_link) && test -s conftest${ac_exeext}; then
|
||||
ifelse([$3], , :, [rm -rf conftest*
|
||||
@ -2658,11 +2670,13 @@ else
|
||||
fi
|
||||
])
|
||||
|
||||
dnl Like AC_TRY_RUN but assumes a native-environment (non-cross) compiler.
|
||||
|
||||
dnl AC_TRY_RUN_NATIVE(PROGRAM, [ACTION-IF-TRUE [, ACTION-IF-FALSE]])
|
||||
dnl ----------------------------------------------------------------
|
||||
dnl Like AC_TRY_RUN but assumes a native-environment (non-cross) compiler.
|
||||
AC_DEFUN(AC_TRY_RUN_NATIVE,
|
||||
[cat >conftest.$ac_ext <<EOF
|
||||
[#]line __oline__ "configure"
|
||||
@PND@line __oline__ "configure"
|
||||
#include "confdefs.h"
|
||||
ifelse(AC_LANG, CPLUSPLUS, [#ifdef __cplusplus
|
||||
extern "C" void exit(int);
|
||||
@ -2886,7 +2900,8 @@ AC_DEFUN(AC_CHECK_SIZEOF,
|
||||
AC_CACHE_CHECK([size of $1], ac_Sizeof,
|
||||
[AC_TRY_RUN([#include <stdio.h>
|
||||
[$3]
|
||||
main()
|
||||
int
|
||||
main ()
|
||||
{
|
||||
FILE *f=fopen("conftestval", "w");
|
||||
if (!f) exit(1);
|
||||
|
||||
150
acspecific.m4
150
acspecific.m4
@ -1141,6 +1141,7 @@ changequote(<<, >>)dnl
|
||||
#define NGID 256
|
||||
#undef MAX
|
||||
#define MAX(x, y) ((x) > (y) ? (x) : (y))
|
||||
int
|
||||
main()
|
||||
{
|
||||
gid_t gidset[NGID];
|
||||
@ -1229,9 +1230,16 @@ dnl that case.
|
||||
AC_DEFUN(AC_FUNC_CLOSEDIR_VOID,
|
||||
[AC_REQUIRE([AC_HEADER_DIRENT])dnl
|
||||
AC_CACHE_CHECK(whether closedir returns void, ac_cv_func_closedir_void,
|
||||
[AC_TRY_RUN([#include <sys/types.h>
|
||||
[AC_TRY_RUN(
|
||||
[#include <sys/types.h>
|
||||
#include <$ac_header_dirent>
|
||||
int closedir(); main() { exit(closedir(opendir(".")) != 0); }],
|
||||
|
||||
int closedir();
|
||||
int
|
||||
main()
|
||||
{
|
||||
exit(closedir(opendir(".")) != 0);
|
||||
}],
|
||||
ac_cv_func_closedir_void=no,
|
||||
ac_cv_func_closedir_void=yes,
|
||||
ac_cv_func_closedir_void=yes)])
|
||||
@ -1241,19 +1249,33 @@ if test $ac_cv_func_closedir_void = yes; then
|
||||
fi
|
||||
])
|
||||
|
||||
dnl AC_FUNC_FNMATCH
|
||||
dnl ---------------
|
||||
dnl We look for fnmatch.h to avoid that the test fails in C++.
|
||||
AC_DEFUN(AC_FUNC_FNMATCH,
|
||||
[AC_CACHE_CHECK(for working fnmatch, ac_cv_func_fnmatch_works,
|
||||
[AC_CHECK_HEADERS(fnmatch.h)
|
||||
AC_CACHE_CHECK(for working fnmatch, ac_cv_func_fnmatch_works,
|
||||
# Some versions of Solaris or SCO have a broken fnmatch function.
|
||||
# So we run a test program. If we are cross-compiling, take no chance.
|
||||
# Thanks to John Oleynick and Franc,ois Pinard for this test.
|
||||
[AC_TRY_RUN([main() { exit (fnmatch ("a*", "abc", 0) != 0); }],
|
||||
[AC_TRY_RUN(
|
||||
[#if HAVE_FNMATCH_H
|
||||
# include <fnmatch.h>
|
||||
#endif
|
||||
|
||||
int
|
||||
main()
|
||||
{
|
||||
exit (fnmatch ("a*", "abc", 0) != 0);
|
||||
}],
|
||||
ac_cv_func_fnmatch_works=yes, ac_cv_func_fnmatch_works=no,
|
||||
ac_cv_func_fnmatch_works=no)])
|
||||
if test $ac_cv_func_fnmatch_works = yes; then
|
||||
AC_DEFINE(HAVE_FNMATCH, 1,
|
||||
[Define if your system has a working `fnmatch' function.])
|
||||
fi
|
||||
])
|
||||
])dnl AC_FUNC_FNMATCH
|
||||
|
||||
|
||||
dnl AC_FUNC_MMAP
|
||||
dnl ------------
|
||||
@ -1423,7 +1445,8 @@ int pid;
|
||||
int pg1, pg2, pg3, pg4;
|
||||
int ng, np, s, child;
|
||||
|
||||
main()
|
||||
int
|
||||
main ()
|
||||
{
|
||||
pid = getpid();
|
||||
pg1 = getpgrp(0);
|
||||
@ -1468,33 +1491,38 @@ if test $ac_cv_func_getpgrp_void = yes; then
|
||||
fi
|
||||
])dnl AC_FUNC_GETPGRP
|
||||
|
||||
|
||||
dnl AC_FUNC_SETPGRP
|
||||
dnl ---------------
|
||||
AC_DEFUN(AC_FUNC_SETPGRP,
|
||||
[AC_CACHE_CHECK(whether setpgrp takes no argument, ac_cv_func_setpgrp_void,
|
||||
AC_TRY_RUN([
|
||||
#ifdef HAVE_UNISTD_H
|
||||
#include <unistd.h>
|
||||
AC_TRY_RUN(
|
||||
[#ifdef HAVE_UNISTD_H
|
||||
# include <unistd.h>
|
||||
#endif
|
||||
|
||||
/*
|
||||
* If this system has a BSD-style setpgrp, which takes arguments, exit
|
||||
* successfully.
|
||||
*/
|
||||
main()
|
||||
/* If this system has a BSD-style setpgrp, which takes arguments, exit
|
||||
successfully. */
|
||||
|
||||
int
|
||||
main ()
|
||||
{
|
||||
if (setpgrp(1,1) == -1)
|
||||
exit(0);
|
||||
else
|
||||
exit(1);
|
||||
}
|
||||
], ac_cv_func_setpgrp_void=no, ac_cv_func_setpgrp_void=yes,
|
||||
if (setpgrp (1,1) == -1)
|
||||
exit (0);
|
||||
else
|
||||
exit (1);
|
||||
}], ac_cv_func_setpgrp_void=no, ac_cv_func_setpgrp_void=yes,
|
||||
AC_MSG_ERROR(cannot check setpgrp if cross compiling))
|
||||
)
|
||||
if test $ac_cv_func_setpgrp_void = yes; then
|
||||
AC_DEFINE(SETPGRP_VOID, 1,
|
||||
[Define if the `setpgrp' function takes no argument.])
|
||||
fi
|
||||
])
|
||||
])dnl AC_FUNC_SETPGRP
|
||||
|
||||
|
||||
dnl AC_FUNC_VPRINTF
|
||||
dnl ---------------
|
||||
dnl Why the heck is that _doprnt does not define HAVE__DOPRNT???
|
||||
dnl That the logical name! In addition, why doesn't it use
|
||||
dnl AC_CHECK_FUNCS(vprintf)? Because old Autoconf uses sh for loops.
|
||||
@ -1557,7 +1585,10 @@ sparc_address_test (arg) int arg;
|
||||
}
|
||||
}
|
||||
}
|
||||
main() {
|
||||
|
||||
int
|
||||
main ()
|
||||
{
|
||||
pid_t parent = getpid ();
|
||||
pid_t child;
|
||||
|
||||
@ -1617,16 +1648,22 @@ ac_cv_func_vfork_works=$ac_cv_func_vfork)])
|
||||
if test "x$ac_cv_func_vfork_works" = xno; then
|
||||
AC_DEFINE(vfork, fork, [Define as `fork' if `vfork' does not work.])
|
||||
fi
|
||||
])
|
||||
])dnl AC_FUNC_VFORK
|
||||
|
||||
|
||||
dnl AC_FUNC_WAIT3
|
||||
dnl -------------
|
||||
AC_DEFUN(AC_FUNC_WAIT3,
|
||||
[AC_CACHE_CHECK(for wait3 that fills in rusage, ac_cv_func_wait3_rusage,
|
||||
[AC_TRY_RUN([#include <sys/types.h>
|
||||
[AC_TRY_RUN(
|
||||
[#include <sys/types.h>
|
||||
#include <sys/time.h>
|
||||
#include <sys/resource.h>
|
||||
#include <stdio.h>
|
||||
/* HP-UX has wait3 but does not fill in rusage at all. */
|
||||
main() {
|
||||
int
|
||||
main()
|
||||
{
|
||||
struct rusage r;
|
||||
int i;
|
||||
/* Use a field that we can force nonzero --
|
||||
@ -1742,6 +1779,7 @@ AC_CACHE_CHECK(stack direction for C alloca, ac_cv_c_stack_direction,
|
||||
else
|
||||
return (&dummy > addr) ? 1 : -1;
|
||||
}
|
||||
int
|
||||
main ()
|
||||
{
|
||||
exit (find_stack_direction() < 0);
|
||||
@ -1878,13 +1916,18 @@ AC_DEFUN(AC_FUNC_UTIME_NULL,
|
||||
[AC_CACHE_CHECK(whether utime accepts a null argument, ac_cv_func_utime_null,
|
||||
[rm -f conftestdata; >conftestdata
|
||||
# Sequent interprets utime(file, 0) to mean use start of epoch. Wrong.
|
||||
AC_TRY_RUN([#include <sys/types.h>
|
||||
AC_TRY_RUN(
|
||||
[#include <sys/types.h>
|
||||
#include <sys/stat.h>
|
||||
main() {
|
||||
struct stat s, t;
|
||||
exit(!(stat ("conftestdata", &s) == 0 && utime("conftestdata", (long *)0) == 0
|
||||
&& stat("conftestdata", &t) == 0 && t.st_mtime >= s.st_mtime
|
||||
&& t.st_mtime - s.st_mtime < 120));
|
||||
int
|
||||
main()
|
||||
{
|
||||
struct stat s, t;
|
||||
exit (!(stat ("conftestdata", &s) == 0
|
||||
&& utime ("conftestdata", (long *)0) == 0
|
||||
&& stat ("conftestdata", &t) == 0
|
||||
&& t.st_mtime >= s.st_mtime
|
||||
&& t.st_mtime - s.st_mtime < 120));
|
||||
}], ac_cv_func_utime_null=yes, ac_cv_func_utime_null=no,
|
||||
ac_cv_func_utime_null=no)
|
||||
rm -f core core.* *.core])
|
||||
@ -1901,6 +1944,7 @@ dnl ---------------
|
||||
AC_DEFUN(AC_FUNC_STRCOLL,
|
||||
[AC_CACHE_CHECK(for working strcoll, ac_cv_func_strcoll_works,
|
||||
[AC_TRY_RUN([#include <string.h>
|
||||
int
|
||||
main ()
|
||||
{
|
||||
exit (strcoll ("abc", "def") >= 0 ||
|
||||
@ -1923,7 +1967,9 @@ AC_DEFUN(AC_FUNC_SETVBUF_REVERSED,
|
||||
ac_cv_func_setvbuf_reversed,
|
||||
[AC_TRY_RUN([#include <stdio.h>
|
||||
/* If setvbuf has the reversed format, exit 0. */
|
||||
main () {
|
||||
int
|
||||
main ()
|
||||
{
|
||||
/* This call has the arguments reversed.
|
||||
A reversed system may check and see that the address of main
|
||||
is not _IOLBF, _IONBF, or _IOFBF, and return nonzero. */
|
||||
@ -2136,13 +2182,14 @@ dnl AC_FUNC_MEMCMP
|
||||
dnl --------------
|
||||
AC_DEFUN(AC_FUNC_MEMCMP,
|
||||
[AC_CACHE_CHECK(for 8-bit clean memcmp, ac_cv_func_memcmp_clean,
|
||||
[AC_TRY_RUN([
|
||||
[AC_TRY_RUN(
|
||||
[int
|
||||
main()
|
||||
{
|
||||
char c0 = 0x40, c1 = 0x80, c2 = 0x81;
|
||||
exit(memcmp(&c0, &c2, 1) < 0 && memcmp(&c1, &c2, 1) < 0 ? 0 : 1);
|
||||
}
|
||||
], ac_cv_func_memcmp_clean=yes, ac_cv_func_memcmp_clean=no,
|
||||
exit (memcmp(&c0, &c2, 1) < 0
|
||||
&& memcmp(&c1, &c2, 1) < 0 ? 0 : 1);
|
||||
}], ac_cv_func_memcmp_clean=yes, ac_cv_func_memcmp_clean=no,
|
||||
ac_cv_func_memcmp_clean=no)])
|
||||
test $ac_cv_func_memcmp_clean = no && LIBOBJS="$LIBOBJS memcmp.${ac_objext}"
|
||||
AC_SUBST(LIBOBJS)dnl
|
||||
@ -2327,10 +2374,13 @@ else
|
||||
AC_TRY_RUN(
|
||||
[/* volatile prevents gcc2 from optimizing the test away on sparcs. */
|
||||
#if !defined(__STDC__) || __STDC__ != 1
|
||||
#define volatile
|
||||
# define volatile
|
||||
#endif
|
||||
main() {
|
||||
volatile char c = 255; exit(c < 0);
|
||||
int
|
||||
main()
|
||||
{
|
||||
volatile char c = 255;
|
||||
exit(c < 0);
|
||||
}], ac_cv_c_char_unsigned=yes, ac_cv_c_char_unsigned=no)
|
||||
fi])
|
||||
if test $ac_cv_c_char_unsigned = yes && test "$GCC" != yes; then
|
||||
@ -2393,7 +2443,10 @@ AC_TRY_COMPILE([#include <sys/types.h>
|
||||
#endif
|
||||
], ac_cv_c_bigendian=yes, ac_cv_c_bigendian=no)])
|
||||
if test $ac_cv_c_bigendian = unknown; then
|
||||
AC_TRY_RUN([main () {
|
||||
AC_TRY_RUN(
|
||||
[int
|
||||
main ()
|
||||
{
|
||||
/* Are we little or big endian? From Harbison&Steele. */
|
||||
union
|
||||
{
|
||||
@ -2434,7 +2487,7 @@ case "$ac_cv_c_inline" in
|
||||
[Define as `__inline' if that's what the C compiler
|
||||
calls it, or to nothing if it is not supported.]) ;;
|
||||
esac
|
||||
])
|
||||
])dnl AC_C_INLINE
|
||||
|
||||
|
||||
dnl AC_C_CONST
|
||||
@ -2992,6 +3045,9 @@ if test $ac_cv_sys_long_file_names = yes; then
|
||||
fi
|
||||
])
|
||||
|
||||
|
||||
dnl AC_SYS_RESTARTABLE_SYSCALLS
|
||||
dnl ---------------------------
|
||||
AC_DEFUN(AC_SYS_RESTARTABLE_SYSCALLS,
|
||||
[AC_CACHE_CHECK(for restartable system calls, ac_cv_sys_restartable_syscalls,
|
||||
[AC_TRY_RUN(
|
||||
@ -3001,22 +3057,26 @@ AC_DEFUN(AC_SYS_RESTARTABLE_SYSCALLS,
|
||||
#include <sys/types.h>
|
||||
#include <signal.h>
|
||||
ucatch (isig) { }
|
||||
main () {
|
||||
int
|
||||
main ()
|
||||
{
|
||||
int i = fork (), status;
|
||||
if (i == 0) { sleep (3); kill (getppid (), SIGINT); sleep (3); exit (0); }
|
||||
signal (SIGINT, ucatch);
|
||||
status = wait(&i);
|
||||
if (status == -1) wait(&i);
|
||||
exit (status == -1);
|
||||
}
|
||||
], ac_cv_sys_restartable_syscalls=yes, ac_cv_sys_restartable_syscalls=no)])
|
||||
}], ac_cv_sys_restartable_syscalls=yes, ac_cv_sys_restartable_syscalls=no)])
|
||||
if test $ac_cv_sys_restartable_syscalls = yes; then
|
||||
AC_DEFINE(HAVE_RESTARTABLE_SYSCALLS, 1,
|
||||
[Define if system calls automatically restart after interruption
|
||||
by a signal.])
|
||||
fi
|
||||
])
|
||||
])dnl AC_SYS_RESTARTABLE_SYSCALLS
|
||||
|
||||
|
||||
dnl AC_PATH_X
|
||||
dnl ---------
|
||||
AC_DEFUN(AC_PATH_X,
|
||||
[AC_REQUIRE_CPP()dnl Set CPP; we run AC_PATH_X_DIRECT conditionally.
|
||||
# If we find X, set shell vars x_includes and x_libraries to the
|
||||
|
||||
@ -2578,9 +2578,15 @@ dnl [#]line __oline__ "[$]0"
|
||||
[#]line __oline__ "configure"
|
||||
#include "confdefs.h"
|
||||
[$1]
|
||||
int main() {
|
||||
int
|
||||
main ()
|
||||
{
|
||||
dnl Do *not* indent the following line: there may be CPP directives.
|
||||
dnl Don't move the `;' right after for the same reason.
|
||||
[$2]
|
||||
; return 0; }
|
||||
;
|
||||
return 0;
|
||||
}
|
||||
])EOF
|
||||
if AC_TRY_EVAL(ac_compile); then
|
||||
ifelse([$3], , :, [rm -rf conftest*
|
||||
@ -2620,13 +2626,19 @@ ifelse(AC_LANG, [FORTRAN77],
|
||||
end
|
||||
],
|
||||
[dnl This sometimes fails to find confdefs.h, for some reason.
|
||||
dnl [#]line __oline__ "[$]0"
|
||||
[#]line __oline__ "configure"
|
||||
dnl @PND@line __oline__ "[$]0"
|
||||
@PND@line __oline__ "configure"
|
||||
#include "confdefs.h"
|
||||
[$1]
|
||||
int main() {
|
||||
int
|
||||
main()
|
||||
{
|
||||
dnl Do *not* indent the following line: there may be CPP directives.
|
||||
dnl Don't move the `;' right after for the same reason.
|
||||
[$2]
|
||||
; return 0; }
|
||||
;
|
||||
return 0;
|
||||
}
|
||||
])EOF
|
||||
if AC_TRY_EVAL(ac_link) && test -s conftest${ac_exeext}; then
|
||||
ifelse([$3], , :, [rm -rf conftest*
|
||||
@ -2658,11 +2670,13 @@ else
|
||||
fi
|
||||
])
|
||||
|
||||
dnl Like AC_TRY_RUN but assumes a native-environment (non-cross) compiler.
|
||||
|
||||
dnl AC_TRY_RUN_NATIVE(PROGRAM, [ACTION-IF-TRUE [, ACTION-IF-FALSE]])
|
||||
dnl ----------------------------------------------------------------
|
||||
dnl Like AC_TRY_RUN but assumes a native-environment (non-cross) compiler.
|
||||
AC_DEFUN(AC_TRY_RUN_NATIVE,
|
||||
[cat >conftest.$ac_ext <<EOF
|
||||
[#]line __oline__ "configure"
|
||||
@PND@line __oline__ "configure"
|
||||
#include "confdefs.h"
|
||||
ifelse(AC_LANG, CPLUSPLUS, [#ifdef __cplusplus
|
||||
extern "C" void exit(int);
|
||||
@ -2886,7 +2900,8 @@ AC_DEFUN(AC_CHECK_SIZEOF,
|
||||
AC_CACHE_CHECK([size of $1], ac_Sizeof,
|
||||
[AC_TRY_RUN([#include <stdio.h>
|
||||
[$3]
|
||||
main()
|
||||
int
|
||||
main ()
|
||||
{
|
||||
FILE *f=fopen("conftestval", "w");
|
||||
if (!f) exit(1);
|
||||
|
||||
@ -1141,6 +1141,7 @@ changequote(<<, >>)dnl
|
||||
#define NGID 256
|
||||
#undef MAX
|
||||
#define MAX(x, y) ((x) > (y) ? (x) : (y))
|
||||
int
|
||||
main()
|
||||
{
|
||||
gid_t gidset[NGID];
|
||||
@ -1229,9 +1230,16 @@ dnl that case.
|
||||
AC_DEFUN(AC_FUNC_CLOSEDIR_VOID,
|
||||
[AC_REQUIRE([AC_HEADER_DIRENT])dnl
|
||||
AC_CACHE_CHECK(whether closedir returns void, ac_cv_func_closedir_void,
|
||||
[AC_TRY_RUN([#include <sys/types.h>
|
||||
[AC_TRY_RUN(
|
||||
[#include <sys/types.h>
|
||||
#include <$ac_header_dirent>
|
||||
int closedir(); main() { exit(closedir(opendir(".")) != 0); }],
|
||||
|
||||
int closedir();
|
||||
int
|
||||
main()
|
||||
{
|
||||
exit(closedir(opendir(".")) != 0);
|
||||
}],
|
||||
ac_cv_func_closedir_void=no,
|
||||
ac_cv_func_closedir_void=yes,
|
||||
ac_cv_func_closedir_void=yes)])
|
||||
@ -1241,19 +1249,33 @@ if test $ac_cv_func_closedir_void = yes; then
|
||||
fi
|
||||
])
|
||||
|
||||
dnl AC_FUNC_FNMATCH
|
||||
dnl ---------------
|
||||
dnl We look for fnmatch.h to avoid that the test fails in C++.
|
||||
AC_DEFUN(AC_FUNC_FNMATCH,
|
||||
[AC_CACHE_CHECK(for working fnmatch, ac_cv_func_fnmatch_works,
|
||||
[AC_CHECK_HEADERS(fnmatch.h)
|
||||
AC_CACHE_CHECK(for working fnmatch, ac_cv_func_fnmatch_works,
|
||||
# Some versions of Solaris or SCO have a broken fnmatch function.
|
||||
# So we run a test program. If we are cross-compiling, take no chance.
|
||||
# Thanks to John Oleynick and Franc,ois Pinard for this test.
|
||||
[AC_TRY_RUN([main() { exit (fnmatch ("a*", "abc", 0) != 0); }],
|
||||
[AC_TRY_RUN(
|
||||
[#if HAVE_FNMATCH_H
|
||||
# include <fnmatch.h>
|
||||
#endif
|
||||
|
||||
int
|
||||
main()
|
||||
{
|
||||
exit (fnmatch ("a*", "abc", 0) != 0);
|
||||
}],
|
||||
ac_cv_func_fnmatch_works=yes, ac_cv_func_fnmatch_works=no,
|
||||
ac_cv_func_fnmatch_works=no)])
|
||||
if test $ac_cv_func_fnmatch_works = yes; then
|
||||
AC_DEFINE(HAVE_FNMATCH, 1,
|
||||
[Define if your system has a working `fnmatch' function.])
|
||||
fi
|
||||
])
|
||||
])dnl AC_FUNC_FNMATCH
|
||||
|
||||
|
||||
dnl AC_FUNC_MMAP
|
||||
dnl ------------
|
||||
@ -1423,7 +1445,8 @@ int pid;
|
||||
int pg1, pg2, pg3, pg4;
|
||||
int ng, np, s, child;
|
||||
|
||||
main()
|
||||
int
|
||||
main ()
|
||||
{
|
||||
pid = getpid();
|
||||
pg1 = getpgrp(0);
|
||||
@ -1468,33 +1491,38 @@ if test $ac_cv_func_getpgrp_void = yes; then
|
||||
fi
|
||||
])dnl AC_FUNC_GETPGRP
|
||||
|
||||
|
||||
dnl AC_FUNC_SETPGRP
|
||||
dnl ---------------
|
||||
AC_DEFUN(AC_FUNC_SETPGRP,
|
||||
[AC_CACHE_CHECK(whether setpgrp takes no argument, ac_cv_func_setpgrp_void,
|
||||
AC_TRY_RUN([
|
||||
#ifdef HAVE_UNISTD_H
|
||||
#include <unistd.h>
|
||||
AC_TRY_RUN(
|
||||
[#ifdef HAVE_UNISTD_H
|
||||
# include <unistd.h>
|
||||
#endif
|
||||
|
||||
/*
|
||||
* If this system has a BSD-style setpgrp, which takes arguments, exit
|
||||
* successfully.
|
||||
*/
|
||||
main()
|
||||
/* If this system has a BSD-style setpgrp, which takes arguments, exit
|
||||
successfully. */
|
||||
|
||||
int
|
||||
main ()
|
||||
{
|
||||
if (setpgrp(1,1) == -1)
|
||||
exit(0);
|
||||
else
|
||||
exit(1);
|
||||
}
|
||||
], ac_cv_func_setpgrp_void=no, ac_cv_func_setpgrp_void=yes,
|
||||
if (setpgrp (1,1) == -1)
|
||||
exit (0);
|
||||
else
|
||||
exit (1);
|
||||
}], ac_cv_func_setpgrp_void=no, ac_cv_func_setpgrp_void=yes,
|
||||
AC_MSG_ERROR(cannot check setpgrp if cross compiling))
|
||||
)
|
||||
if test $ac_cv_func_setpgrp_void = yes; then
|
||||
AC_DEFINE(SETPGRP_VOID, 1,
|
||||
[Define if the `setpgrp' function takes no argument.])
|
||||
fi
|
||||
])
|
||||
])dnl AC_FUNC_SETPGRP
|
||||
|
||||
|
||||
dnl AC_FUNC_VPRINTF
|
||||
dnl ---------------
|
||||
dnl Why the heck is that _doprnt does not define HAVE__DOPRNT???
|
||||
dnl That the logical name! In addition, why doesn't it use
|
||||
dnl AC_CHECK_FUNCS(vprintf)? Because old Autoconf uses sh for loops.
|
||||
@ -1557,7 +1585,10 @@ sparc_address_test (arg) int arg;
|
||||
}
|
||||
}
|
||||
}
|
||||
main() {
|
||||
|
||||
int
|
||||
main ()
|
||||
{
|
||||
pid_t parent = getpid ();
|
||||
pid_t child;
|
||||
|
||||
@ -1617,16 +1648,22 @@ ac_cv_func_vfork_works=$ac_cv_func_vfork)])
|
||||
if test "x$ac_cv_func_vfork_works" = xno; then
|
||||
AC_DEFINE(vfork, fork, [Define as `fork' if `vfork' does not work.])
|
||||
fi
|
||||
])
|
||||
])dnl AC_FUNC_VFORK
|
||||
|
||||
|
||||
dnl AC_FUNC_WAIT3
|
||||
dnl -------------
|
||||
AC_DEFUN(AC_FUNC_WAIT3,
|
||||
[AC_CACHE_CHECK(for wait3 that fills in rusage, ac_cv_func_wait3_rusage,
|
||||
[AC_TRY_RUN([#include <sys/types.h>
|
||||
[AC_TRY_RUN(
|
||||
[#include <sys/types.h>
|
||||
#include <sys/time.h>
|
||||
#include <sys/resource.h>
|
||||
#include <stdio.h>
|
||||
/* HP-UX has wait3 but does not fill in rusage at all. */
|
||||
main() {
|
||||
int
|
||||
main()
|
||||
{
|
||||
struct rusage r;
|
||||
int i;
|
||||
/* Use a field that we can force nonzero --
|
||||
@ -1742,6 +1779,7 @@ AC_CACHE_CHECK(stack direction for C alloca, ac_cv_c_stack_direction,
|
||||
else
|
||||
return (&dummy > addr) ? 1 : -1;
|
||||
}
|
||||
int
|
||||
main ()
|
||||
{
|
||||
exit (find_stack_direction() < 0);
|
||||
@ -1878,13 +1916,18 @@ AC_DEFUN(AC_FUNC_UTIME_NULL,
|
||||
[AC_CACHE_CHECK(whether utime accepts a null argument, ac_cv_func_utime_null,
|
||||
[rm -f conftestdata; >conftestdata
|
||||
# Sequent interprets utime(file, 0) to mean use start of epoch. Wrong.
|
||||
AC_TRY_RUN([#include <sys/types.h>
|
||||
AC_TRY_RUN(
|
||||
[#include <sys/types.h>
|
||||
#include <sys/stat.h>
|
||||
main() {
|
||||
struct stat s, t;
|
||||
exit(!(stat ("conftestdata", &s) == 0 && utime("conftestdata", (long *)0) == 0
|
||||
&& stat("conftestdata", &t) == 0 && t.st_mtime >= s.st_mtime
|
||||
&& t.st_mtime - s.st_mtime < 120));
|
||||
int
|
||||
main()
|
||||
{
|
||||
struct stat s, t;
|
||||
exit (!(stat ("conftestdata", &s) == 0
|
||||
&& utime ("conftestdata", (long *)0) == 0
|
||||
&& stat ("conftestdata", &t) == 0
|
||||
&& t.st_mtime >= s.st_mtime
|
||||
&& t.st_mtime - s.st_mtime < 120));
|
||||
}], ac_cv_func_utime_null=yes, ac_cv_func_utime_null=no,
|
||||
ac_cv_func_utime_null=no)
|
||||
rm -f core core.* *.core])
|
||||
@ -1901,6 +1944,7 @@ dnl ---------------
|
||||
AC_DEFUN(AC_FUNC_STRCOLL,
|
||||
[AC_CACHE_CHECK(for working strcoll, ac_cv_func_strcoll_works,
|
||||
[AC_TRY_RUN([#include <string.h>
|
||||
int
|
||||
main ()
|
||||
{
|
||||
exit (strcoll ("abc", "def") >= 0 ||
|
||||
@ -1923,7 +1967,9 @@ AC_DEFUN(AC_FUNC_SETVBUF_REVERSED,
|
||||
ac_cv_func_setvbuf_reversed,
|
||||
[AC_TRY_RUN([#include <stdio.h>
|
||||
/* If setvbuf has the reversed format, exit 0. */
|
||||
main () {
|
||||
int
|
||||
main ()
|
||||
{
|
||||
/* This call has the arguments reversed.
|
||||
A reversed system may check and see that the address of main
|
||||
is not _IOLBF, _IONBF, or _IOFBF, and return nonzero. */
|
||||
@ -2136,13 +2182,14 @@ dnl AC_FUNC_MEMCMP
|
||||
dnl --------------
|
||||
AC_DEFUN(AC_FUNC_MEMCMP,
|
||||
[AC_CACHE_CHECK(for 8-bit clean memcmp, ac_cv_func_memcmp_clean,
|
||||
[AC_TRY_RUN([
|
||||
[AC_TRY_RUN(
|
||||
[int
|
||||
main()
|
||||
{
|
||||
char c0 = 0x40, c1 = 0x80, c2 = 0x81;
|
||||
exit(memcmp(&c0, &c2, 1) < 0 && memcmp(&c1, &c2, 1) < 0 ? 0 : 1);
|
||||
}
|
||||
], ac_cv_func_memcmp_clean=yes, ac_cv_func_memcmp_clean=no,
|
||||
exit (memcmp(&c0, &c2, 1) < 0
|
||||
&& memcmp(&c1, &c2, 1) < 0 ? 0 : 1);
|
||||
}], ac_cv_func_memcmp_clean=yes, ac_cv_func_memcmp_clean=no,
|
||||
ac_cv_func_memcmp_clean=no)])
|
||||
test $ac_cv_func_memcmp_clean = no && LIBOBJS="$LIBOBJS memcmp.${ac_objext}"
|
||||
AC_SUBST(LIBOBJS)dnl
|
||||
@ -2327,10 +2374,13 @@ else
|
||||
AC_TRY_RUN(
|
||||
[/* volatile prevents gcc2 from optimizing the test away on sparcs. */
|
||||
#if !defined(__STDC__) || __STDC__ != 1
|
||||
#define volatile
|
||||
# define volatile
|
||||
#endif
|
||||
main() {
|
||||
volatile char c = 255; exit(c < 0);
|
||||
int
|
||||
main()
|
||||
{
|
||||
volatile char c = 255;
|
||||
exit(c < 0);
|
||||
}], ac_cv_c_char_unsigned=yes, ac_cv_c_char_unsigned=no)
|
||||
fi])
|
||||
if test $ac_cv_c_char_unsigned = yes && test "$GCC" != yes; then
|
||||
@ -2393,7 +2443,10 @@ AC_TRY_COMPILE([#include <sys/types.h>
|
||||
#endif
|
||||
], ac_cv_c_bigendian=yes, ac_cv_c_bigendian=no)])
|
||||
if test $ac_cv_c_bigendian = unknown; then
|
||||
AC_TRY_RUN([main () {
|
||||
AC_TRY_RUN(
|
||||
[int
|
||||
main ()
|
||||
{
|
||||
/* Are we little or big endian? From Harbison&Steele. */
|
||||
union
|
||||
{
|
||||
@ -2434,7 +2487,7 @@ case "$ac_cv_c_inline" in
|
||||
[Define as `__inline' if that's what the C compiler
|
||||
calls it, or to nothing if it is not supported.]) ;;
|
||||
esac
|
||||
])
|
||||
])dnl AC_C_INLINE
|
||||
|
||||
|
||||
dnl AC_C_CONST
|
||||
@ -2992,6 +3045,9 @@ if test $ac_cv_sys_long_file_names = yes; then
|
||||
fi
|
||||
])
|
||||
|
||||
|
||||
dnl AC_SYS_RESTARTABLE_SYSCALLS
|
||||
dnl ---------------------------
|
||||
AC_DEFUN(AC_SYS_RESTARTABLE_SYSCALLS,
|
||||
[AC_CACHE_CHECK(for restartable system calls, ac_cv_sys_restartable_syscalls,
|
||||
[AC_TRY_RUN(
|
||||
@ -3001,22 +3057,26 @@ AC_DEFUN(AC_SYS_RESTARTABLE_SYSCALLS,
|
||||
#include <sys/types.h>
|
||||
#include <signal.h>
|
||||
ucatch (isig) { }
|
||||
main () {
|
||||
int
|
||||
main ()
|
||||
{
|
||||
int i = fork (), status;
|
||||
if (i == 0) { sleep (3); kill (getppid (), SIGINT); sleep (3); exit (0); }
|
||||
signal (SIGINT, ucatch);
|
||||
status = wait(&i);
|
||||
if (status == -1) wait(&i);
|
||||
exit (status == -1);
|
||||
}
|
||||
], ac_cv_sys_restartable_syscalls=yes, ac_cv_sys_restartable_syscalls=no)])
|
||||
}], ac_cv_sys_restartable_syscalls=yes, ac_cv_sys_restartable_syscalls=no)])
|
||||
if test $ac_cv_sys_restartable_syscalls = yes; then
|
||||
AC_DEFINE(HAVE_RESTARTABLE_SYSCALLS, 1,
|
||||
[Define if system calls automatically restart after interruption
|
||||
by a signal.])
|
||||
fi
|
||||
])
|
||||
])dnl AC_SYS_RESTARTABLE_SYSCALLS
|
||||
|
||||
|
||||
dnl AC_PATH_X
|
||||
dnl ---------
|
||||
AC_DEFUN(AC_PATH_X,
|
||||
[AC_REQUIRE_CPP()dnl Set CPP; we run AC_PATH_X_DIRECT conditionally.
|
||||
# If we find X, set shell vars x_includes and x_libraries to the
|
||||
|
||||
Loading…
Reference in New Issue
Block a user