anchor.diff:  
   stdenv.mkDerivation rec {
     pname = "julia";
  -  version = "0.5.1";
  +  version = "0.5.2";
     name = "${pname}-${version}";
   
  -  src = fetchurl {
  +  src = fetchzip {
       url = "https://github.com/JuliaLang/${pname}/releases/download/v${version}/${name}.tar.gz";
  -    sha256 = "1a9m7hzzrwk71gvwwrd1p45s64yid61i41n95gm5pzbry6p9fpl0";
  +    sha256 = "1616f53dj7xc0g2iys8qfbzal6dx55nswnws5g5r44dlbf4hcl0h";
     };
     prePatch = ''
       mkdir deps/srccache
  
positive.code:   preBuild = ''
      sed -e '/^install:/s@[^ ]*/doc/[^ ]*@@' -i Makefile
      sed -e '/[$](DESTDIR)[$](docdir)/d' -i Makefile
    '';
  
    postInstall = ''
  
negative.code: { stdenv, fetchgit, fetchurl, fetchzip
  # build tools
  , gfortran, m4, makeWrapper, patchelf, perl, which, python2
  , runCommand
  