Upstream-Status: Backport

ar.c (do_oper_delete): Fix num passed to memset
native build failed as following on Fedora18+: 
ar.c: In function 'do_oper_delete':
ar.c:918:31: error: argument to 'sizeof' in 'memset' call is the same expression as the destination; did you mean to dereference it? [-Werror=sizeof-pointer-memaccess]
   memset (found, '\0', sizeof (found));
                                ^
The original commit is http://git.fedorahosted.org/cgit/elfutils.git/commit/src/ar.c?id=1a4d0668d18bf1090c5c08cdb5cb3ba2b8eb5410

Signed-off-by: Zhenhua Luo <zhenhua.luo@freescale.com>

--- elfutils-0.148/src/ar.c.org	2013-03-12 21:12:17.928281375 -0500
+++ elfutils-0.148/src/ar.c	2013-03-12 21:15:30.053285271 -0500
@@ -915,7 +915,7 @@
 		long int instance)
 {
   bool *found = alloca (sizeof (bool) * argc);
-  memset (found, '\0', sizeof (found));
+  memset (found, '\0', sizeof (bool) * argc);
 
   /* List of the files we keep.  */
   struct armem *to_copy = NULL;