--- lib/regex.h.orig	Thu Feb 10 12:27:41 2000
+++ lib/regex.h	Thu Feb 10 12:26:55 2000
@@ -23,6 +23,7 @@
 /* POSIX says that <sys/types.h> must be included (by the caller) before
    <regex.h>.  */
 
+#include <sys/syslimits.h>
 #ifdef VMS
 /* VMS doesn't have `size_t' in <sys/types.h>, even though POSIX says it
    should be there.  */