Minor fixes to libs/wpp/preproc.c (fwd)

[Gerald Pfeifer]

I noticed this hasn't been applied, so let me split off the straight-
forward part of this patch.

ChangeLog:
Add missing #include <ctype.h>.

Index: libs/wpp/preproc.c
===================================================================
RCS file: /home/wine/wine/libs/wpp/preproc.c,v
retrieving revision 1.10
diff -u -3 -p -r1.10 preproc.c
--- libs/wpp/preproc.c	12 Sep 2006 12:31:07 -0000	1.10
+++ libs/wpp/preproc.c	27 Dec 2008 08:10:49 -0000
@@ -20,6 +20,7 @@
 #include "wine/port.h"
 
 #include <assert.h>
+#include <ctype.h>
 #include <fcntl.h>
 #include <stdio.h>
 #include <stdlib.h>