File trunc.patch of Package xstereograph

--- libsx-2.03/src/colorsel.c.orig	2015-06-28 14:14:45.765337556 +0100
+++ libsx-2.03/src/colorsel.c	2015-06-28 14:16:12.564387032 +0100
@@ -63,6 +63,7 @@
 static void show_best_match(Widget w, CSelData *cdata);
 */
 
+#define trunc my_trunc
 int trunc(float v)
 {
   return (int)(0.5+v);