[COMMITTED PATCH] NaCl: Fix glob.c build after getlogin_r -> __getlogin_r.

[Roland McGrath]

2015-06-24  Roland McGrath  <roland@hack.frob.com>

	* sysdeps/nacl/glob.c (getlogin_r): Macro renamed to ...
	(__getlogin_r): ... this.

diff --git a/sysdeps/nacl/glob.c b/sysdeps/nacl/glob.c
index 36d62e8..eda6e9e 100644
--- a/sysdeps/nacl/glob.c
+++ b/sysdeps/nacl/glob.c
@@ -16,11 +16,11 @@
    License along with the GNU C Library; if not, see
    <http://www.gnu.org/licenses/>.  */
 
-#include <unistd.h>			/* Declares getlogin_r.  */
+#include <unistd.h>			/* Declares __getlogin_r.  */
 
 /* We do not have getlogin_r in the library at all for NaCl.
    Define it away so the glob code does not try to use it.  */
-#define getlogin_r(name, len)		(ENOSYS)
+#define __getlogin_r(name, len)		(ENOSYS)
 
 /* Fetch the version that defines glob64 as an alias.  */
 #include <sysdeps/wordsize-64/glob.c>