Commit ac2bb3f200b9d765e2e41f0d9532b41e75e82381
2015-03-23T20:07:24
configure script: fix recursive mutex test on Linux systems (thanks, Ozkan!).
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diff --git a/configure b/configure
index 81e6b24..e220948 100755
--- a/configure
+++ b/configure
@@ -21916,6 +21916,7 @@ $as_echo_n "checking for recursive mutexes... " >&6; }
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
+ #define _GNU_SOURCE 1
#include <pthread.h>
int
@@ -21929,7 +21930,7 @@ main ()
return 0;
}
_ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_c_try_link "$LINENO"; then :
has_recursive_mutexes=yes
@@ -21937,12 +21938,14 @@ $as_echo "#define SDL_THREAD_PTHREAD_RECURSIVE_MUTEX 1" >>confdefs.h
fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext \
+ conftest$ac_exeext conftest.$ac_ext
fi
if test x$has_recursive_mutexes = xno; then
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
+ #define _GNU_SOURCE 1
#include <pthread.h>
int
@@ -21956,7 +21959,7 @@ main ()
return 0;
}
_ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_c_try_link "$LINENO"; then :
has_recursive_mutexes=yes
@@ -21964,7 +21967,8 @@ $as_echo "#define SDL_THREAD_PTHREAD_RECURSIVE_MUTEX_NP 1" >>confdefs.h
fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext \
+ conftest$ac_exeext conftest.$ac_ext
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $has_recursive_mutexes" >&5
$as_echo "$has_recursive_mutexes" >&6; }
diff --git a/configure.in b/configure.in
index a2ad20a..6e38782 100644
--- a/configure.in
+++ b/configure.in
@@ -2424,7 +2424,8 @@ AC_HELP_STRING([--enable-pthread-sem], [use pthread semaphores [[default=yes]]])
AC_MSG_CHECKING(for recursive mutexes)
has_recursive_mutexes=no
if test x$has_recursive_mutexes = xno; then
- AC_TRY_COMPILE([
+ AC_TRY_LINK([
+ #define _GNU_SOURCE 1
#include <pthread.h>
],[
pthread_mutexattr_t attr;
@@ -2435,7 +2436,8 @@ AC_HELP_STRING([--enable-pthread-sem], [use pthread semaphores [[default=yes]]])
])
fi
if test x$has_recursive_mutexes = xno; then
- AC_TRY_COMPILE([
+ AC_TRY_LINK([
+ #define _GNU_SOURCE 1
#include <pthread.h>
],[
pthread_mutexattr_t attr;