Fix the MS-Windows build broken by 2011-05-06T07:13:19Z!eggert@cs.ucla.edu.

 src/lread.c: Include limits.h.

src/ChangeLog

+2011-05-06  Eli Zaretskii  <eliz@gnu.org>
+
+	* lread.c: Include limits.h (fixes the MS-Windows build broken by
+	2011-05-06T07:13:19Z!eggert@cs.ucla.edu).
+
 2011-05-06  Paul Eggert  <eggert@cs.ucla.edu>
 
 	* image.c (Finit_image_library) [!HAVE_NTGUI]: Omit unused local.

src/lread.c

@@ -24,6 +24,7 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
 #include <sys/stat.h>
 #include <sys/file.h>
 #include <errno.h>
+#include <limits.h>	/* for CHAR_BIT */
 #include <setjmp.h>
 #include "lisp.h"
 #include "intervals.h"