File xcb-gcc15.patch of Package xcb

--- a/xcb.c	2025-02-14 11:42:31.494798776 +0000
+++ b/xcb.c	2025-02-14 11:41:16.412751722 +0000
@@ -983,7 +983,7 @@ dogetseln (n, ptr, nb)
 static void
 dolist (list, fn, data, nbytes)
      char *list;
-     void (*fn) ();
+     void (*fn) (int, char *, int);
      char *data;
      int nbytes;
 {