m4_include(../config/acx.m4)
m4_include(../config/no-executables.m4)
-dnl Check:
-dnl * If we have gettimeofday;
-dnl * If we have struct timezone for use in calling it;
-dnl * If calling it with a timezone pointer actually works -- this is deemed
-dnl obsolete or undefined on some systems which say you should use a null
-dnl pointer -- and undefine HAVE_TIMEZONE if so;
-dnl * Whether it only takes one arg.
-AC_DEFUN([LIBGFOR_GETTIMEOFDAY], [
- AC_CHECK_FUNCS(gettimeofday)
- if test "$ac_cv_func_gettimeofday" = yes; then
- AC_CACHE_CHECK([for struct timezone], gfor_cv_struct_timezone,
- [AC_TRY_COMPILE([#include <sys/time.h>],
- [struct timezone tz;],
- gfor_cv_struct_timezone=yes, gfor_cv_struct_timezone=no)])
- if test $gfor_cv_struct_timezone = yes; then
- dnl It may be that we can't call gettimeofday with a non-null pointer.
- dnl In that case we'll lie about struct timezone.
- AC_TRY_RUN([
-#ifdef TIME_WITH_SYS_TIME
-#include <sys/time.h>
-#include <time.h>
-#else
-#ifdef HAVE_SYS_TIME_H
-#include <sys/time.h>
-#else
-#include <time.h>
-#endif
-#endif
-main ()
-{
- struct timeval time;
- struct timezone dummy;
- if (gettimeofday (&time, &dummy))
- exit (1);
- else
- exit (0);
-}],
- [gfor_have_struct_timezone=yes], [gfor_have_struct_timezone=no],
- [gfor_have_struct_timezone=yes])
- if test $gfor_have_struct_timezone = yes; then
- AC_DEFINE(HAVE_TIMEZONE, 1, [Do we have struct timezone])
- fi
- fi
- AC_REQUIRE([AC_HEADER_TIME])
- AC_CACHE_CHECK([whether gettimeofday can accept two arguments],
- emacs_cv_gettimeofday_two_arguments,
- [AC_TRY_LINK([
-#ifdef TIME_WITH_SYS_TIME
-#include <sys/time.h>
-#include <time.h>
-#else
-#ifdef HAVE_SYS_TIME_H
-#include <sys/time.h>
-#else
-#include <time.h>
-#endif
-#endif
- ],
- [
- struct timeval time;
-#ifdef HAVE_TIMEZONE
- struct timezone dummy;
-#define DUMMY &dummy
-#else
-#define DUMMY NULL
-#endif
- gettimeofday (&time, DUMMY);],
- emacs_cv_gettimeofday_two_arguments=yes,
- emacs_cv_gettimeofday_two_arguments=no)])
- if test $emacs_cv_gettimeofday_two_arguments = no; then
- AC_DEFINE(GETTIMEOFDAY_ONE_ARGUMENT, 1,
- [Does gettimeofday take a single argument])
- fi
- fi])
+dnl Check that we have a working GNU Fortran compiler
+AC_DEFUN([LIBGFOR_WORKING_GFORTRAN], [
+AC_MSG_CHECKING([whether the GNU Fortran compiler is working])
+AC_LANG_PUSH([Fortran])
+AC_COMPILE_IFELSE([[
+ program foo
+ real, parameter :: bar = sin (12.34 / 2.5)
+ end program foo]],
+ [AC_MSG_RESULT([yes])],
+ [AC_MSG_RESULT([no])
+ AC_MSG_ERROR([GNU Fortran is not working; please report a bug in http://gcc.gnu.org/bugzilla, attaching $PWD/config.log])
+ ])
+AC_LANG_POP([Fortran])
+])
+
sinclude(../libtool.m4)
dnl The lines below arrange for aclocal not to bring an installed
AC_DEFUN([AC_PROG_LD])
])
-dnl Check whether the target is ILP32.
-AC_DEFUN([LIBGFOR_TARGET_ILP32], [
- AC_CACHE_CHECK([whether the target is ILP32], target_ilp32, [
- save_CFLAGS="$CFLAGS"
- CFLAGS="-O2"
- AC_TRY_LINK(,[
-if (sizeof(int) == 4 && sizeof(long) == 4 && sizeof(void *) == 4)
- ;
-else
- undefined_function ();
- ],
- target_ilp32=yes,
- target_ilp32=no)
- CFLAGS="$save_CFLAGS"])
- if test $target_ilp32 = yes; then
- AC_DEFINE(TARGET_ILP32, 1,
- [Define to 1 if the target is ILP32.])
- fi
- ])
-
dnl Check whether the target supports hidden visibility.
AC_DEFUN([LIBGFOR_CHECK_ATTRIBUTE_VISIBILITY], [
AC_CACHE_CHECK([whether the target supports hidden visibility],
- have_attribute_visibility, [
+ libgfor_cv_have_attribute_visibility, [
save_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS -Werror"
AC_TRY_COMPILE([void __attribute__((visibility("hidden"))) foo(void) { }],
- [], have_attribute_visibility=yes,
- have_attribute_visibility=no)
+ [], libgfor_cv_have_attribute_visibility=yes,
+ libgfor_cv_have_attribute_visibility=no)
CFLAGS="$save_CFLAGS"])
- if test $have_attribute_visibility = yes; then
+ if test $libgfor_cv_have_attribute_visibility = yes; then
AC_DEFINE(HAVE_ATTRIBUTE_VISIBILITY, 1,
[Define to 1 if the target supports __attribute__((visibility(...))).])
fi])
dnl Check whether the target supports dllexport
AC_DEFUN([LIBGFOR_CHECK_ATTRIBUTE_DLLEXPORT], [
AC_CACHE_CHECK([whether the target supports dllexport],
- have_attribute_dllexport, [
+ libgfor_cv_have_attribute_dllexport, [
save_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS -Werror"
AC_TRY_COMPILE([void __attribute__((dllexport)) foo(void) { }],
- [], have_attribute_dllexport=yes,
- have_attribute_dllexport=no)
+ [], libgfor_cv_have_attribute_dllexport=yes,
+ libgfor_cv_have_attribute_dllexport=no)
CFLAGS="$save_CFLAGS"])
- if test $have_attribute_dllexport = yes; then
+ if test $libgfor_cv_have_attribute_dllexport = yes; then
AC_DEFINE(HAVE_ATTRIBUTE_DLLEXPORT, 1,
[Define to 1 if the target supports __attribute__((dllexport)).])
fi])
dnl Check whether the target supports symbol aliases.
AC_DEFUN([LIBGFOR_CHECK_ATTRIBUTE_ALIAS], [
AC_CACHE_CHECK([whether the target supports symbol aliases],
- have_attribute_alias, [
+ libgfor_cv_have_attribute_alias, [
AC_TRY_LINK([
-#define ULP STR1(__USER_LABEL_PREFIX__)
-#define STR1(x) STR2(x)
-#define STR2(x) #x
void foo(void) { }
-extern void bar(void) __attribute__((alias(ULP "foo")));],
- [bar();], have_attribute_alias=yes, have_attribute_alias=no)])
- if test $have_attribute_alias = yes; then
+extern void bar(void) __attribute__((alias("foo")));],
+ [bar();], libgfor_cv_have_attribute_alias=yes, libgfor_cv_have_attribute_alias=no)])
+ if test $libgfor_cv_have_attribute_alias = yes; then
AC_DEFINE(HAVE_ATTRIBUTE_ALIAS, 1,
[Define to 1 if the target supports __attribute__((alias(...))).])
fi])
dnl Check whether the target supports __sync_fetch_and_add.
AC_DEFUN([LIBGFOR_CHECK_SYNC_FETCH_AND_ADD], [
AC_CACHE_CHECK([whether the target supports __sync_fetch_and_add],
- have_sync_fetch_and_add, [
+ libgfor_cv_have_sync_fetch_and_add, [
AC_TRY_LINK([int foovar = 0;], [
if (foovar <= 0) return __sync_fetch_and_add (&foovar, 1);
if (foovar > 10) return __sync_add_and_fetch (&foovar, -1);],
- have_sync_fetch_and_add=yes, have_sync_fetch_and_add=no)])
- if test $have_sync_fetch_and_add = yes; then
+ libgfor_cv_have_sync_fetch_and_add=yes, libgfor_cv_have_sync_fetch_and_add=no)])
+ if test $libgfor_cv_have_sync_fetch_and_add = yes; then
AC_DEFINE(HAVE_SYNC_FETCH_AND_ADD, 1,
[Define to 1 if the target supports __sync_fetch_and_add])
fi])
dnl Check if threads are supported.
AC_DEFUN([LIBGFOR_CHECK_GTHR_DEFAULT], [
AC_CACHE_CHECK([configured target thread model],
- target_thread_file, [
-target_thread_file=`$CC -v 2>&1 | sed -n 's/^Thread model: //p'`])
+ libgfor_cv_target_thread_file, [
+libgfor_cv_target_thread_file=`$CC -v 2>&1 | sed -n 's/^Thread model: //p'`])
- if test $target_thread_file != single; then
+ if test $libgfor_cv_target_thread_file != single; then
AC_DEFINE(HAVE_GTHR_DEFAULT, 1,
[Define if the compiler has a thread header that is non single.])
fi])
dnl Check for pragma weak.
AC_DEFUN([LIBGFOR_GTHREAD_WEAK], [
AC_CACHE_CHECK([whether pragma weak works],
- have_pragma_weak, [
+ libgfor_cv_have_pragma_weak, [
gfor_save_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS -Wunknown-pragmas"
AC_TRY_COMPILE([void foo (void);
#pragma weak foo], [if (foo) foo ();],
- have_pragma_weak=yes, have_pragma_weak=no)])
- if test $have_pragma_weak = yes; then
+ libgfor_cv_have_pragma_weak=yes, libgfor_cv_have_pragma_weak=no)])
+ if test $libgfor_cv_have_pragma_weak = yes; then
AC_DEFINE(SUPPORTS_WEAK, 1,
[Define to 1 if the target supports #pragma weak])
fi
case "$host" in
- *-*-darwin* | *-*-hpux* | *-*-cygwin*)
+ *-*-darwin* | *-*-hpux* | *-*-cygwin* | *-*-mingw* )
AC_DEFINE(GTHREAD_USE_WEAK, 0,
[Define to 0 if the target shouldn't use #pragma weak])
;;
dnl Check whether target can unlink a file still open.
AC_DEFUN([LIBGFOR_CHECK_UNLINK_OPEN_FILE], [
AC_CACHE_CHECK([whether the target can unlink an open file],
- have_unlink_open_file, [
+ libgfor_cv_have_unlink_open_file, [
AC_TRY_RUN([
#include <errno.h>
#include <fcntl.h>
return 0;
else
return 1;
-}], have_unlink_open_file=yes, have_unlink_open_file=no, [
+}], libgfor_cv_have_unlink_open_file=yes, libgfor_cv_have_unlink_open_file=no, [
case "${target}" in
- *mingw*) have_unlink_open_file=no ;;
- *) have_unlink_open_file=yes;;
+ *mingw*) libgfor_cv_have_unlink_open_file=no ;;
+ *) libgfor_cv_have_unlink_open_file=yes;;
esac])])
-if test x"$have_unlink_open_file" = xyes; then
+if test x"$libgfor_cv_have_unlink_open_file" = xyes; then
AC_DEFINE(HAVE_UNLINK_OPEN_FILE, 1, [Define if target can unlink open files.])
fi])
dnl Check whether CRLF is the line terminator
AC_DEFUN([LIBGFOR_CHECK_CRLF], [
AC_CACHE_CHECK([whether the target has CRLF as line terminator],
- have_crlf, [
+ libgfor_cv_have_crlf, [
AC_TRY_RUN([
/* This test program should exit with status 0 if system uses a CRLF as
line terminator, and status 1 otherwise.
else
exit(1);
#endif
-}], have_crlf=yes, have_crlf=no, [
+}], libgfor_cv_have_crlf=yes, libgfor_cv_have_crlf=no, [
case "${target}" in
- *mingw*) have_crlf=yes ;;
- *) have_crlf=no;;
+ *mingw*) libgfor_cv_have_crlf=yes ;;
+ *) libgfor_cv_have_crlf=no;;
esac])])
-if test x"$have_crlf" = xyes; then
+if test x"$libgfor_cv_have_crlf" = xyes; then
AC_DEFINE(HAVE_CRLF, 1, [Define if CRLF is line terminator.])
fi])
dnl The most common problem is that it does not work on long doubles.
AC_DEFUN([LIBGFOR_CHECK_FOR_BROKEN_ISFINITE], [
AC_CACHE_CHECK([whether isfinite is broken],
- have_broken_isfinite, [
+ libgfor_cv_have_broken_isfinite, [
libgfor_check_for_broken_isfinite_save_LIBS=$LIBS
LIBS="$LIBS -lm"
AC_TRY_RUN([
-#ifdef HAVE_MATH_H
#include <math.h>
-#endif
#include <float.h>
int main ()
{
#endif
#endif
return 0;
-}], have_broken_isfinite=no, have_broken_isfinite=yes, [
+}], libgfor_cv_have_broken_isfinite=no, libgfor_cv_have_broken_isfinite=yes, [
case "${target}" in
- hppa*-*-hpux*) have_broken_isfinite=yes ;;
- *) have_broken_isfinite=no ;;
+ hppa*-*-hpux*) libgfor_cv_have_broken_isfinite=yes ;;
+ *) libgfor_cv_have_broken_isfinite=no ;;
esac])]
LIBS=$libgfor_check_for_broken_isfinite_save_LIBS)
-if test x"$have_broken_isfinite" = xyes; then
+if test x"$libgfor_cv_have_broken_isfinite" = xyes; then
AC_DEFINE(HAVE_BROKEN_ISFINITE, 1, [Define if isfinite is broken.])
fi])
dnl The most common problem is that it does not work on long doubles.
AC_DEFUN([LIBGFOR_CHECK_FOR_BROKEN_ISNAN], [
AC_CACHE_CHECK([whether isnan is broken],
- have_broken_isnan, [
+ libgfor_cv_have_broken_isnan, [
libgfor_check_for_broken_isnan_save_LIBS=$LIBS
LIBS="$LIBS -lm"
AC_TRY_RUN([
-#ifdef HAVE_MATH_H
#include <math.h>
-#endif
#include <float.h>
int main ()
{
#endif
#endif
return 0;
-}], have_broken_isnan=no, have_broken_isnan=yes, [
+}], libgfor_cv_have_broken_isnan=no, libgfor_cv_have_broken_isnan=yes, [
case "${target}" in
- hppa*-*-hpux*) have_broken_isnan=yes ;;
- *) have_broken_isnan=no ;;
+ hppa*-*-hpux*) libgfor_cv_have_broken_isnan=yes ;;
+ *) libgfor_cv_have_broken_isnan=no ;;
esac])]
LIBS=$libgfor_check_for_broken_isnan_save_LIBS)
-if test x"$have_broken_isnan" = xyes; then
+if test x"$libgfor_cv_have_broken_isnan" = xyes; then
AC_DEFINE(HAVE_BROKEN_ISNAN, 1, [Define if isnan is broken.])
fi])
dnl The most common problem is that it does not work on long doubles.
AC_DEFUN([LIBGFOR_CHECK_FOR_BROKEN_FPCLASSIFY], [
AC_CACHE_CHECK([whether fpclassify is broken],
- have_broken_fpclassify, [
+ libgfor_cv_have_broken_fpclassify, [
libgfor_check_for_broken_fpclassify_save_LIBS=$LIBS
LIBS="$LIBS -lm"
AC_TRY_RUN([
-#ifdef HAVE_MATH_H
#include <math.h>
-#endif
#include <float.h>
int main ()
{
#endif
#endif
return 0;
-}], have_broken_fpclassify=no, have_broken_fpclassify=yes, [
+}], libgfor_cv_have_broken_fpclassify=no, libgfor_cv_have_broken_fpclassify=yes, [
case "${target}" in
- hppa*-*-hpux*) have_broken_fpclassify=yes ;;
- *) have_broken_fpclassify=no ;;
+ hppa*-*-hpux*) libgfor_cv_have_broken_fpclassify=yes ;;
+ *) libgfor_cv_have_broken_fpclassify=no ;;
esac])]
LIBS=$libgfor_check_for_broken_fpclassify_save_LIBS)
-if test x"$have_broken_fpclassify" = xyes; then
+if test x"$libgfor_cv_have_broken_fpclassify" = xyes; then
AC_DEFINE(HAVE_BROKEN_FPCLASSIFY, 1, [Define if fpclassify is broken.])
fi])
dnl systems; it is known to be false on mingw32.
AC_DEFUN([LIBGFOR_CHECK_WORKING_STAT], [
AC_CACHE_CHECK([whether the target stat is reliable],
- have_working_stat, [
+ libgfor_cv_have_working_stat, [
AC_TRY_RUN([
#include <stdio.h>
#include <sys/types.h>
fclose(f);
fclose(g);
return 0;
-}], have_working_stat=yes, have_working_stat=no, [
+}], libgfor_cv_have_working_stat=yes, libgfor_cv_have_working_stat=no, [
case "${target}" in
- *mingw*) have_working_stat=no ;;
- *) have_working_stat=yes;;
+ *mingw*) libgfor_cv_have_working_stat=no ;;
+ *) libgfor_cv_have_working_stat=yes;;
esac])])
-if test x"$have_working_stat" = xyes; then
+if test x"$libgfor_cv_have_working_stat" = xyes; then
AC_DEFINE(HAVE_WORKING_STAT, 1, [Define if target has a reliable stat.])
fi])
dnl Checks for fpsetmask function.
AC_DEFUN([LIBGFOR_CHECK_FPSETMASK], [
- AC_CACHE_CHECK([whether fpsetmask is present], have_fpsetmask, [
+ AC_CACHE_CHECK([whether fpsetmask is present], libgfor_cv_have_fpsetmask, [
AC_TRY_LINK([
#if HAVE_FLOATINGPOINT_H
# include <floatingpoint.h>
#if HAVE_IEEEFP_H
# include <ieeefp.h>
#endif /* HAVE_IEEEFP_H */],[fpsetmask(0);],
- eval "have_fpsetmask=yes", eval "have_fpsetmask=no")
+ eval "libgfor_cv_have_fpsetmask=yes", eval "libgfor_cv_have_fpsetmask=no")
])
- if test x"$have_fpsetmask" = xyes; then
+ if test x"$libgfor_cv_have_fpsetmask" = xyes; then
AC_DEFINE(HAVE_FPSETMASK, 1, [Define if you have fpsetmask.])
fi
])
+
+dnl Check whether we have a mingw that provides a __mingw_snprintf function
+AC_DEFUN([LIBGFOR_CHECK_MINGW_SNPRINTF], [
+ AC_CACHE_CHECK([whether __mingw_snprintf is present], libgfor_cv_have_mingw_snprintf, [
+ AC_TRY_LINK([
+#include <stdio.h>
+extern int __mingw_snprintf (char *, size_t, const char *, ...);
+],[
+__mingw_snprintf (NULL, 0, "%d\n", 1);
+],
+ eval "libgfor_cv_have_mingw_snprintf=yes", eval "libgfor_cv_have_mingw_snprintf=no")
+ ])
+ if test x"$libgfor_cv_have_mingw_snprintf" = xyes; then
+ AC_DEFINE(HAVE_MINGW_SNPRINTF, 1, [Define if you have __mingw_snprintf.])
+ fi
+])
+
+dnl Check whether we have a broken powf implementation
+AC_DEFUN([LIBGFOR_CHECK_FOR_BROKEN_POWF], [
+ AC_CACHE_CHECK([whether powf is broken], libgfor_cv_have_broken_powf, [
+case "${target}" in
+ hppa*64*-*-hpux*) libgfor_cv_have_broken_powf=yes ;;
+ *) libgfor_cv_have_broken_powf=no;;
+esac])
+ if test x"$libgfor_cv_have_broken_powf" = xyes; then
+ AC_DEFINE(HAVE_BROKEN_POWF, 1, [Define if powf is broken.])
+ fi
+])
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