From 5454156ae38fbe9fa58bcd31fe239a0c11c78a20 Mon Sep 17 00:00:00 2001
From: Brian Aker <brian@tangent.org>
Date: Sat, 25 Jan 2014 23:52:32 -0800
Subject: [PATCH] Updated pthread m4.

---
 m4/ax_pthread.m4 | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/m4/ax_pthread.m4 b/m4/ax_pthread.m4
index 007f6276..18055791 100644
--- a/m4/ax_pthread.m4
+++ b/m4/ax_pthread.m4
@@ -82,11 +82,12 @@
 #   modified version of the Autoconf Macro, you may extend this special
 #   exception to the GPL to apply to your modified version as well.
 
-#serial 22
+#serial 23
 
 AU_ALIAS([ACX_PTHREAD], [AX_PTHREAD])
 AC_DEFUN([AX_PTHREAD], [
 AC_REQUIRE([AC_CANONICAL_HOST])
+AC_LANG_PUSH([C])
 ax_pthread_ok=no
 
 # We used to check for pthread.h first, but this fails if pthread.h
@@ -327,4 +328,5 @@ else
         ax_pthread_ok=no
         $2
 fi
+AC_LANG_POP
 ])dnl AX_PTHREAD
-- 
2.30.2