[Patch] Fix PR52945

[Dominique Dhumieres]

The following patch fixes PR52945 on Darwin. It as beem approved
by Jan Hubicka in PR52945#c5. Since I don't have write permission,
could someone commit it for me?

TIA

Dominique

2012-10-08  Dominique d'Humieres  <domi...@lps.ens.fr>

        PR gcc/52945
        * testsuite/gcc.dg/lto/pr52634_0.c: skip the test on Darwin.

--- /opt/gcc/_clean/gcc/testsuite/gcc.dg/lto/pr52634_0.c        2012-04-10 
08:58:02.000000000 +0200
+++ /opt/gcc/work/gcc/testsuite/gcc.dg/lto/pr52634_0.c  2012-06-19 
15:09:29.000000000 +0200
@@ -1,3 +1,5 @@
+/* { dg-require-weak "" } */
+/* { dg-require-alias "" } */
 /* { dg-lto-do link } */
 /* { dg-lto-options {{-flto -r -nostdlib -flto-partition=1to1}} */
 extern int cfliteValueCallBacks;