anchor.diff:      sha256 = "05mz77vml396mff43dbs50524rlm4fyds6widypagfbh5hc55qdc";
     };
   
  -in stdenv.mkDerivation rec {
  +in gcc6Stdenv.mkDerivation rec {
     pname = "dxx-rebirth";
     version = "0.59.100";
   
  
positive.code:     install -Dm644 -t $out/share/doc/dxx-rebirth *.txt
    '';
  
    meta = with stdenv.lib; {
      description = "Source Port of the Descent 1 and 2 engines";
      homepage = https://www.dxx-rebirth.com/;
      license = licenses.free;
      maintainers = with maintainers; [ peterhoeg ];
      platforms = with platforms; linux;
  
negative.code: { gcc6Stdenv, fetchurl, fetchpatch, scons, pkgconfig
  , SDL, SDL_mixer, libGLU_combined, physfs
  }:
  
  