let
  pkgs = import <nixpkgs> {};
in pkgs.buildFHSUserEnv {
  name = "julia";
  targetPkgs = pkgs: with pkgs; [
    zlib
    pcre
    libtool
    gnumake
    # gcc # gcc will be pulled in by gfortran
    python
    (llvmPackages.clang-unwrapped.overrideAttrs ( oldAttrs: rec { meta.priority = 6; }))
    llvmPackages.llvm
    (gfortran.overrideAttrs ( oldAttrs: rec { meta.priority = 5; }))
    perl
    wget
    m4
    gawk
    git
    patch
    cmake
    pkgconfig
  ];
}