anchor.diff:  
         rpath = "${stdenv.lib.makeLibraryPath runtimeDependencies}:${stdenv.cc.cc.lib}/lib64";
   
  -      phases = [ "unpackPhase" "installPhase" "fixupPhase" ];
  -
         unpackPhase = ''
           sh $src --keep --noexec
   
  
positive.code:       installPhase = ''
          mkdir $out
          cd $(basename $src)
          perl ./install-linux.pl --prefix="$out"
          cd ..
          for patch in $runPatches; do
  
negative.code:         rm -rf $out/lib
  
          # Remove some cruft.
          ${lib.optionalString (lib.versionAtLeast version "7.0") "rm $out/bin/uninstall*"}
  
          # Fixup path to samples (needed for cuda 6.5 or else nsight will not find them)
          if [ -d "$out"/cuda-samples ]; then
  