Avoid compiler warnings in lib-src/ntlib.c

 src/ntlib.c: Include <mbstring.h>, to avoid compiler warning about
 _mbspbrk.

lib-src/ChangeLog

+2012-10-17  Eli Zaretskii  <eliz@gnu.org>
+
+	* ntlib.c: Include <mbstring.h>, to avoid compiler warning about
+	_mbspbrk.
+
 2012-10-08  Eli Zaretskii  <eliz@gnu.org>
 
 	* makefile.w32-in (obj): Add cygw32.o.

lib-src/ntlib.c

@@ -30,6 +30,7 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
 #include <errno.h>
 #include <ctype.h>
 #include <sys/timeb.h>
+#include <mbstring.h>
 
 #include "ntlib.h"