# HG changeset patch
# User Ryan C. Gordon <icculus@icculus.org>
# Date 1427155644 14400
# Node ID a3344156e514adb953f5bbc5a9973b6d7c2c0aa2
# Parent  3df83030dab9064a3f65cea6c317db77a437606b
configure script: fix recursive mutex test on Linux systems (thanks, Ozkan!).

diff -r 3df83030dab9 -r a3344156e514 configure
--- a/configure	Mon Mar 23 19:54:33 2015 -0400
+++ b/configure	Mon Mar 23 20:07:24 2015 -0400
@@ -21916,6 +21916,7 @@
                 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
+                  #define _GNU_SOURCE 1
                   #include <pthread.h>
 
 int
@@ -21929,7 +21930,7 @@
   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 @@
 
 
 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 @@
   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 @@
 
 
 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 -r 3df83030dab9 -r a3344156e514 configure.in
--- a/configure.in	Mon Mar 23 19:54:33 2015 -0400
+++ b/configure.in	Mon Mar 23 20:07:24 2015 -0400
@@ -2424,7 +2424,8 @@
             AC_MSG_CHECKING(for recursive mutexes)
             has_recursive_mutexes=no
             if test x$has_recursive_mutexes = xno; then
-                AC_TRY_COMPILE([
+                AC_TRY_LINK([
+                  #define _GNU_SOURCE 1
                   #include <pthread.h>
                 ],[
                   pthread_mutexattr_t attr;
@@ -2435,7 +2436,8 @@
                 ])
             fi
             if test x$has_recursive_mutexes = xno; then
-                AC_TRY_COMPILE([
+                AC_TRY_LINK([
+                  #define _GNU_SOURCE 1
                   #include <pthread.h>
                 ],[
                   pthread_mutexattr_t attr;