Update m4

[m6w6/libmemcached] / m4 / ax_pthread_timedjoin_np.m4

diff --git a/m4/ax_pthread_timedjoin_np.m4 b/m4/ax_pthread_timedjoin_np.m4
index daec6c568be55e1e8bd1602d338c6fd58346dbd7..39de8fa8f041b66082fcfa3b85c7618402d5def1 100644 (file)
--- a/m4/ax_pthread_timedjoin_np.m4
+++ b/m4/ax_pthread_timedjoin_np.m4
@@ -19,33 +19,32 @@
 #   and this notice are preserved. This file is offered as-is, without any
 #   warranty.
 
-#serial 5
+#serial 6
 
-  AC_DEFUN([AX_PTHREAD_TIMEDJOIN_NP], [
-      AC_REQUIRE([AX_PTHREAD])
-      AC_CACHE_CHECK([check for pthread_timedjoin_np], [ax_cv_pthread_timedjoin_np], [
-        AX_SAVE_FLAGS
-        CFLAGS="$PTHREAD_CFLAGS"
-        LIBS="$PTHREAD_LIBS"
-        AC_LANG_PUSH([C])
-        AC_LINK_IFELSE([
-          AC_LANG_PROGRAM([
+AC_DEFUN([AX_PTHREAD_TIMEDJOIN_NP],
+    [AC_PREREQ([2.63])dnl
+    AC_REQUIRE([AX_PTHREAD])
+    AC_CACHE_CHECK([check for pthread_timedjoin_np], [ax_cv_pthread_timedjoin_np],
+      [AX_SAVE_FLAGS
+      CFLAGS="$PTHREAD_CFLAGS"
+      LIBS="$PTHREAD_LIBS"
+      AC_LANG_PUSH([C])
+      AC_LINK_IFELSE(
+        [AC_LANG_PROGRAM(
+          [
 #include <pthread.h>
 #include <stdlib.h>
-            ], [
-            pthread_t thread;
-            pthread_timedjoin_np(thread, NULL, NULL);
-            ])],
-          [ax_cv_pthread_timedjoin_np=yes],
-          [])
+          ],[
+          pthread_t thread;
+          pthread_timedjoin_np(thread, NULL, NULL);
+          ])],
+        [ax_cv_pthread_timedjoin_np=yes],[])
 
-        AC_LANG_POP
-        AX_RESTORE_FLAGS
-      ])
-
-      AS_IF([test "$ax_cv_pthread_timedjoin_np" = yes],[
-          AC_DEFINE(HAVE_PTHREAD_TIMEDJOIN_NP,[1],[Define if pthread_timedjoin_np is present in pthread.h.])],[
-          AC_DEFINE(HAVE_PTHREAD_TIMEDJOIN_NP,[0],[Define if pthread_timedjoin_np is present in pthread.h.])
-          ])
+      AC_LANG_POP
+      AX_RESTORE_FLAGS
       ])
 
+    AS_IF([test "$ax_cv_pthread_timedjoin_np" = yes],
+        [AC_DEFINE(HAVE_PTHREAD_TIMEDJOIN_NP,[1],[Define if pthread_timedjoin_np is present in pthread.h.])],
+        [AC_DEFINE(HAVE_PTHREAD_TIMEDJOIN_NP,[0],[Define if pthread_timedjoin_np is present in pthread.h.])])
+    ])