File toycars-gcc47.patch of Package toycars

diff -Naur toycars-0.3.10.orig/toycars/src/MyFisix/Convex.h toycars-0.3.10/toycars/src/MyFisix/Convex.h
--- toycars-0.3.10.orig/toycars/src/MyFisix/Convex.h	2008-09-09 12:14:27.000000000 +0200
+++ toycars-0.3.10/toycars/src/MyFisix/Convex.h	2012-05-01 14:35:37.000000000 +0200
@@ -14,6 +14,8 @@
  *  Created by Ruben on Wed Aug 25 2004.
  */
 
+#include <unistd.h>
+
 #ifndef CONVEX_H
 #define CONVEX_H