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fix AC_LANG_SOURCE warnings

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* configure.ac: Fix annoying AC_LANG_SOURCE warnings.
This commit is contained in:
Andy Wingo 2011-06-17 11:37:11 +02:00
parent 074f39c7bc
commit ad0fedbf82
1 changed files with 9 additions and 9 deletions
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18
configure.ac
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@ -1145,19 +1145,19 @@ AC_CHECK_FUNCS(asinh acosh atanh copysign finite sincos trunc)
# use <math.h> so doesn't detect on macro-only systems like HP-UX.
#
AC_MSG_CHECKING([for isinf])
AC_LINK_IFELSE(AC_LANG_SOURCE(
AC_LINK_IFELSE([AC_LANG_SOURCE(
[[#include <math.h>
volatile double x = 0.0;
int main () { return (isinf(x) != 0); }]]),
int main () { return (isinf(x) != 0); }]])],
[AC_MSG_RESULT([yes])
AC_DEFINE([HAVE_ISINF], 1,
[Define to 1 if you have the `isinf' macro or function.])],
[AC_MSG_RESULT([no])])
AC_MSG_CHECKING([for isnan])
AC_LINK_IFELSE(AC_LANG_SOURCE(
[[#include <math.h>
AC_LINK_IFELSE([AC_LANG_SOURCE([[
#include <math.h>
volatile double x = 0.0;
int main () { return (isnan(x) != 0); }]]),
int main () { return (isnan(x) != 0); }]])],
[AC_MSG_RESULT([yes])
AC_DEFINE([HAVE_ISNAN], 1,
[Define to 1 if you have the `isnan' macro or function.])],
@ -1438,8 +1438,8 @@ case "$with_threads" in
AC_CACHE_CHECK([whether PTHREAD_ONCE_INIT needs braces],
guile_cv_need_braces_on_pthread_once_init,
[AC_COMPILE_IFELSE([#include <pthread.h>
pthread_once_t foo = PTHREAD_ONCE_INIT;],
[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <pthread.h>
pthread_once_t foo = PTHREAD_ONCE_INIT;]])],
[guile_cv_need_braces_on_pthread_once_init=no],
[guile_cv_need_braces_on_pthread_once_init=yes])])
if test "$guile_cv_need_braces_on_pthread_once_init" = yes; then
@ -1450,8 +1450,8 @@ case "$with_threads" in
# 6.5.30m with GCC 3.3.
AC_CACHE_CHECK([whether PTHREAD_MUTEX_INITIALIZER needs braces],
guile_cv_need_braces_on_pthread_mutex_initializer,
[AC_COMPILE_IFELSE([#include <pthread.h>
pthread_mutex_t foo = PTHREAD_MUTEX_INITIALIZER;],
[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <pthread.h>
pthread_mutex_t foo = PTHREAD_MUTEX_INITIALIZER;]])],
[guile_cv_need_braces_on_pthread_mutex_initializer=no],
[guile_cv_need_braces_on_pthread_mutex_initializer=yes])])
if test "$guile_cv_need_braces_on_pthread_mutex_initializer" = yes; then