File wdiff-gcc15.patch of Package wdiff

--- wdiff-1.2.2/src/mdiff.c	2014-04-14 22:05:53.000000000 +0200
+++ wdiff-1.2.2/src/mdiff.c	2025-02-19 15:54:26.678366353 +0100
@@ -53,8 +53,6 @@
 #include <ctype.h>
 #include <string.h>
 
-char *strstr ();
-
 #if HAVE_TPUTS
 # if HAVE_TERMCAP_H
 #  include <termcap.h>