From 68a0fc15048fdadbbd3d736daa62229053e5f286 Mon Sep 17 00:00:00 2001
From: Stephan Wiesand <Stephan.Wiesand@desy.de>
Date: Mon, 26 Feb 2007 17:52:04 +0000
Subject: [PATCH] DEVEL15-update-tasklist-lock-test-20070226

FIXES 54916

make the tasklist lock test actually detect GPL stupidity


(cherry picked from commit bed42291bcc16065f23e964b64d60090ffaa96f9)
---
 src/cf/linux-test4.m4 | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/cf/linux-test4.m4 b/src/cf/linux-test4.m4
index 438d7a229..dff6dbfd0 100644
--- a/src/cf/linux-test4.m4
+++ b/src/cf/linux-test4.m4
@@ -6,6 +6,7 @@ AC_DEFUN([LINUX_EXPORTS_TASKLIST_LOCK], [
 #include <linux/sched.h>],
 [
 extern rwlock_t tasklist_lock __attribute__((weak)); 
+read_lock(&tasklist_lock);
 ],
       ac_cv_linux_exports_tasklist_lock=yes,
       ac_cv_linux_exports_tasklist_lock=no)])
-- 
2.39.5