commit bde2667a22c355467a4f07246c6d07a9dcc89366
Author: Joseph Myers <joseph@codesourcery.com>
Date:   Tue Nov 25 21:40:51 2014 +0000

    Fix warning in posix/bug-regex31.c.
    
    This patch fixes a "set but not used" warning in posix/bug-regex31.c.
    A variable res stored an indication of whether the test behaved as
    expected, but was then ignored and the test returned 0 unconditionally
    (as an mtrace test, the auxiliary test for leaks could still have
    failed if that bug was present).  This patch makes the test return
    res.
    
    Tested for x86_64.
    
            * posix/bug-regex31.c (main): Return RES not 0.

diff --git a/posix/bug-regex31.c b/posix/bug-regex31.c
index fc485815fcf67d82..fd7e0c57cab515be 100644
--- a/posix/bug-regex31.c
+++ b/posix/bug-regex31.c
@@ -33,5 +33,5 @@ main (void)
 
   free (buf);
 
-  return 0;
+  return res;
 }