File x3270-gcc15.patch of Package x3270

--- x026-1.2/x026.c	2025-02-14 11:59:47.781340989 +0000
+++ x026-1.2/x026.c	2025-02-14 11:57:47.954597116 +0000
@@ -603,7 +603,7 @@ struct button {
 	char *label;
 	void (*callback)(int);
 } button[] = {
-	{ "Off", (void (*)())exit },
+	{ "Off", (void (*)(int))exit },
 	{ "Save", save },
 	{ NULL, NULL },
 };