anchor.diff:  { stdenv, fetchurl, builderDefs, mesa, libXi, libXt, libXext, libX11
  -, libXmu, freeglut, esound }:
  +, libXmu, freeglut }:
   
   with builderDefs;
   	let localDefs = builderDefs.passthru.function (rec {
  
positive.code: 			gunzip < ${debianPatch} | patch -Np1
                          cd src
  			sed -e 's@/usr/share/games/orbit/@'$out'/dump/@g' -i *.c
                          sed -e '/DIR=/d' -i Makefile 
                          make 
                          ensureDir $out/bin
                          cp -r .. $out/dump
  
negative.code: 			url = http://ftp.de.debian.org/debian/pool/main/s/space-orbit/space-orbit_1.01.orig.tar.gz;
  		};
  
  		buildInputs = [mesa libXi libXt libXext libX11 libXmu freeglut];
  		configureFlags = [];
  		debianPatch = 
  		fetchurl {
  