anchor.diff:      url = "http://download.lighttpd.net/lighttpd/releases-1.4.x/lighttpd-${lighttpd_ver}.tar.gz";
       sha256 = "ff9f4de3901d03bb285634c5b149191223d17f1c269a16c863bac44238119c85";
     };
  +  patchelf_src = fetchurl {
  +    url = "http://hydra.nixos.org/build/1524660/download/2/patchelf-${patchelf_ver}.tar.bz2";
  +    sha256 = "00bw29vdsscsili65wcb5ay0gvg1w0ljd00sb5xc6br8bylpyzpw";
  +  };
   
     src = fetchgit {
       url = "git://github.com/JuliaLang/julia.git";
  -    rev = "51076ef4c1b269de738b6185865b389601627eb7";
  -    sha256 = "1hbhxdiymkv0pd4dhr9wbvh1566ivfffhmafsjh8jcwh2f9fz90b";
  +    rev = "53598b026b6fd9f79eba02cbc4e2d6c38ca32bd7";
  +    sha256 = "159yasgfbbj6px16kgwf7bg478giv8zbm5hg90ipncp1ls2lv3jy";
     };
   
     buildInputs = [ gfortran perl m4 gmp pcre llvm readline zlib
  
positive.code:   preBuild = ''
      make -C test/unicode all SHELL="${stdenv.shell}"
      make -C extras glpk_h.jl GLPK_PREFIX="$GLPK_PREFIX" SHELL="${stdenv.shell}"
    '';
  
    postInstall = ''
  
negative.code:   arpack_ver = "3.1.2";
    clp_ver = "1.14.5";
    lighttpd_ver = "1.4.29";
    patchelf_ver = "0.6";
  
    grisu_src = fetchurl {
      url = "http://double-conversion.googlecode.com/files/double-conversion-${grisu_ver}.tar.gz";
  