anchor.diff: -{ stdenv, fetchurl, unzip, curl }:
  +{ stdenv, fetchurl, unzip, curl, makeWrapper, gcc }:
   
   stdenv.mkDerivation {
     name = "dmd-2.067.1";
  
positive.code:       cp -r std $out/include/d2
        cp -r etc $out/include/d2
  
        cd $out/bin
        tee dmd.conf << EOF
        [Environment]
  
negative.code:     sha256 = "0ny99vfllvvgcl79pwisxcdnb3732i827k9zg8c0j4s0n79k5z94";
    };
  
    buildInputs = [ unzip curl makeWrapper ];
  
    # Allow to use "clang++", commented in Makefile
    postPatch = stdenv.lib.optionalString stdenv.isDarwin ''
  