File xcolors-gcc15.patch of Package xcolors

--- xcolors.c.orig	2025-02-14 11:31:23.614430920 +0000
+++ xcolors.c	2025-02-14 11:28:01.022687819 +0000
@@ -282,7 +282,7 @@ colordemo(parent, startcolor, nearcolor,
     char colorname[50], save_colorname[50];
     char temp_buffer[255];
     FILE *rgb;
-    Bool do_color();
+    Bool do_color(Widget, char *);
     double ddist = maxdist;
     
     rgb = fopen(opts.rgb_file, "r");