From 6f2dbb7c82c53591f9070ea336f9437f2392fd8f Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Fri, 4 May 2012 12:40:25 +0200
Subject: Add -D_REENTRANT when building on Linux to emulate -pthread

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

diff --git a/m4/acx-pthread.m4 b/m4/acx-pthread.m4
index ffa3dfa..204b32d 100644
--- a/m4/acx-pthread.m4
+++ b/m4/acx-pthread.m4
@@ -220,7 +220,9 @@ dnl     fi
         flag=no
         case "${host_cpu}-${host_os}" in
             *-aix* | *-freebsd* | *-darwin*) flag="-D_THREAD_SAFE";;
-            *solaris* | *-osf* | *-hpux*) flag="-D_REENTRANT";;
+            # CS: Add _REENTRANT in Linux to emulate -pthread.
+            #
+            *-linux* | *solaris* | *-osf* | *-hpux*) flag="-D_REENTRANT";;
         esac
         AC_MSG_RESULT(${flag})
         if test "x$flag" != xno; then
-- 
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