anchor.diff:  in
   stdenv.mkDerivation rec {
     pname = "julia";
  -  date = "20120922";
  +  date = "20121106";
     name = "${pname}-git-${date}";
   
     grisu_ver = "1.1.1";
  
positive.code: 
    src = fetchgit {
      url = "git://github.com/JuliaLang/julia.git";
      rev = "e1ba1ebf09da42a5bd7f4ed18f1595ae06032b4c";
      sha256 = "187e67a7c6bf44469e0e0dda41072ac8f3a40380ea9364ed07a4cadc08965663";
    };
  
    buildInputs = [ gfortran perl m4 gmp pcre llvm readline zlib
  
negative.code:     sed -e "s@/usr/local/lib@$out/lib@g" -i deps/Makefile
      sed -e "s@/usr/lib@$out/lib@g" -i deps/Makefile
      
      export makeFlags="$makeFlags PREFIX=$out SHELL=${stdenv.shell}"
  
      export dontPatchELF=1
    '';
  
    preBuild = ''
      make -C test/unicode all SHELL="${stdenv.shell}"
      make -C extras glpk_h.jl GLPK_PREFIX="$GLPK_PREFIX" SHELL="${stdenv.shell}"
    '';
  
    postInstall = ''
  