anchor.diff:        "-DCMAKE_INSTALL_PREFIX=${bundle}"
       )
     '';
  -  
  +
     preInstall = ''
       mkdir -p $out/bin
       mkdir -p ${bundle}
     '';
  -  
  +
     postInstall = ''
       cp ext/spice/libSpice.so       ${bundle}/lib
       cp ext/ghoul/ext/lua/libLua.so ${bundle}/lib
     '';
  -  
  +
     postFixup = ''
       for bin in ${bundle}/bin/*
       do
         rpath=$(patchelf --print-rpath $bin)
         patchelf --set-rpath $rpath:${bundle}/lib $bin
  -      
  +
         name=$(basename $bin)
         makeWrapper $bin $out/bin/$name --run "cd ${bundle}"
       done
     '';
  -  
  +
     meta = {
       description     = "Open-source astrovisualization project";
       longDescription = ''
  
positive.code: stdenv.mkDerivation rec {
    version = "0.11.1";
    name    = "openspace-${version}";
    
    src = fetchFromGitHub {
      owner  = "OpenSpace";
      repo   = "OpenSpace";
  
negative.code:     homepage  = https://www.openspaceproject.com/;
      license   = stdenv.lib.licenses.mit;
      platforms = stdenv.lib.platforms.linux;
      broken = true; # fails to build
    };
  }
  