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([
void foo(void) { }
extern void bar(void) __attribute__((alias("foo")));],
- [bar();], have_attribute_alias=yes, have_attribute_alias=no)])
- if test $have_attribute_alias = yes; then
+ [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 $libgfor_cv_have_pragma_weak = yes; then
AC_DEFINE(SUPPORTS_WEAK, 1,
[Define to 1 if the target supports #pragma weak])
fi
dnl Check whether target can unlink a file still open.
AC_DEFUN([LIBGFOR_CHECK_UNLINK_OPEN_FILE], [
AC_CACHE_CHECK([whether the target can unlink an open file],
- have_unlink_open_file, [
+ libgfor_cv_have_unlink_open_file, [
AC_TRY_RUN([
#include <errno.h>
#include <fcntl.h>
return 0;
else
return 1;
-}], have_unlink_open_file=yes, have_unlink_open_file=no, [
+}], libgfor_cv_have_unlink_open_file=yes, libgfor_cv_have_unlink_open_file=no, [
case "${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"$libgfor_cv_have_crlf" = xyes; then
AC_DEFINE(HAVE_CRLF, 1, [Define if CRLF is line terminator.])
fi])
-dnl Check whether isfinite is broken.
-dnl The most common problem is that it does not work on long doubles.
-AC_DEFUN([LIBGFOR_CHECK_FOR_BROKEN_ISFINITE], [
- AC_CACHE_CHECK([whether isfinite is broken],
- have_broken_isfinite, [
- libgfor_check_for_broken_isfinite_save_LIBS=$LIBS
- LIBS="$LIBS -lm"
- AC_TRY_RUN([
-#include <math.h>
-#include <float.h>
-int main ()
-{
-#ifdef isfinite
-#ifdef LDBL_MAX
- if (!isfinite(LDBL_MAX)) return 1;
-#endif
-#ifdef DBL_MAX
- if (!isfinite(DBL_MAX)) return 1;
-#endif
-#endif
-return 0;
-}], have_broken_isfinite=no, have_broken_isfinite=yes, [
-case "${target}" in
- hppa*-*-hpux*) have_broken_isfinite=yes ;;
- *) have_broken_isfinite=no ;;
-esac])]
- LIBS=$libgfor_check_for_broken_isfinite_save_LIBS)
-if test x"$have_broken_isfinite" = xyes; then
- AC_DEFINE(HAVE_BROKEN_ISFINITE, 1, [Define if isfinite is broken.])
-fi])
-
-dnl Check whether isnan is broken.
-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_check_for_broken_isnan_save_LIBS=$LIBS
- LIBS="$LIBS -lm"
- AC_TRY_RUN([
-#include <math.h>
-#include <float.h>
-int main ()
-{
-#ifdef isnan
-#ifdef LDBL_MAX
- {
- long double x;
- x = __builtin_nanl ("");
- if (!isnan(x)) return 1;
- if (isnan(LDBL_MAX)) return 1;
-#ifdef NAN
- x = (long double) NAN;
- if (!isnan(x)) return 1;
-#endif
- }
-#endif
-#ifdef DBL_MAX
- {
- double y;
- y = __builtin_nan ("");
- if (!isnan(y)) return 1;
- if (isnan(DBL_MAX)) return 1;
-#ifdef NAN
- y = (double) NAN;
- if (!isnan(y)) return 1;
-#endif
- }
-#endif
-#endif
-return 0;
-}], have_broken_isnan=no, have_broken_isnan=yes, [
-case "${target}" in
- hppa*-*-hpux*) have_broken_isnan=yes ;;
- *) have_broken_isnan=no ;;
-esac])]
- LIBS=$libgfor_check_for_broken_isnan_save_LIBS)
-if test x"$have_broken_isnan" = xyes; then
- AC_DEFINE(HAVE_BROKEN_ISNAN, 1, [Define if isnan is broken.])
-fi])
-
-dnl Check whether fpclassify is broken.
-dnl The most common problem is that it does not work on long doubles.
-AC_DEFUN([LIBGFOR_CHECK_FOR_BROKEN_FPCLASSIFY], [
- AC_CACHE_CHECK([whether fpclassify is broken],
- have_broken_fpclassify, [
- libgfor_check_for_broken_fpclassify_save_LIBS=$LIBS
- LIBS="$LIBS -lm"
- AC_TRY_RUN([
-#include <math.h>
-#include <float.h>
-int main ()
-{
-#ifdef fpclassify
-#ifdef LDBL_MAX
- if (fpclassify(LDBL_MAX) == FP_NAN
- || fpclassify(LDBL_MAX) == FP_INFINITE) return 1;
-#endif
-#ifdef DBL_MAX
- if (fpclassify(DBL_MAX) == FP_NAN
- || fpclassify(DBL_MAX) == FP_INFINITE) return 1;
-#endif
-#endif
-return 0;
-}], have_broken_fpclassify=no, have_broken_fpclassify=yes, [
-case "${target}" in
- hppa*-*-hpux*) have_broken_fpclassify=yes ;;
- *) have_broken_fpclassify=no ;;
-esac])]
- LIBS=$libgfor_check_for_broken_fpclassify_save_LIBS)
-if test x"$have_broken_fpclassify" = xyes; then
- AC_DEFINE(HAVE_BROKEN_FPCLASSIFY, 1, [Define if fpclassify is broken.])
-fi])
-
dnl Check whether the st_ino and st_dev stat fields taken together uniquely
dnl identify the file within the system. This is should be true for POSIX
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"$libgfor_cv_have_fpsetmask" = xyes; then
AC_DEFINE(HAVE_FPSETMASK, 1, [Define if you have fpsetmask.])
fi
])
dnl Check whether we have a mingw that provides a __mingw_snprintf function
AC_DEFUN([LIBGFOR_CHECK_MINGW_SNPRINTF], [
- AC_CACHE_CHECK([whether __mingw_snprintf is present], have_mingw_snprintf, [
+ AC_CACHE_CHECK([whether __mingw_snprintf is present], libgfor_cv_have_mingw_snprintf, [
AC_TRY_LINK([
#include <stdio.h>
extern int __mingw_snprintf (char *, size_t, const char *, ...);
],[
__mingw_snprintf (NULL, 0, "%d\n", 1);
],
- eval "have_mingw_snprintf=yes", eval "have_mingw_snprintf=no")
+ eval "libgfor_cv_have_mingw_snprintf=yes", eval "libgfor_cv_have_mingw_snprintf=no")
])
- if test x"$have_mingw_snprintf" = xyes; then
+ 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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