There was a small mistake in this patch, fixed like this:
2023-06-25 Bruno Haible <br...@clisp.org>
exclude: Complete last change.
* lib/exclude.c: Include <uchar.h> instead of <wctype.h>.
diff --git a/lib/exclude.c b/lib/exclude.c
index af204cd300..15f238e09c 100644
--- a/lib/exclude.c
+++ b/lib/exclude.c
@@ -29,7 +29,7 @@
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
-#include <wctype.h>
+#include <uchar.h>
#include <regex.h>
#include "exclude.h"
