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