default.nix

{ pkgs ? (import <nixpkgs> {})
, useClang ? false
, binutils ? pkgs.binutils
, lib ? pkgs.lib
, stdenv' ? pkgs.stdenv
, gcc ? pkgs.gcc
, clangStdenv ? pkgs.clangStdenv
, gnumake ? pkgs.gnumake
, llvmPackages ? pkgs.llvmPackages
}:

let
  stdenv = stdenv';
  compilerString = if useClang
    then "clang"
    else "gcc";
  internalCompiler = if useClang
    then "${llvmPackages.clang-unwrapped}/bin/${compilerString}"
    else "${gcc}/bin/${compilerString}";
in
stdenv.mkDerivation rec {
  name = "hlibc";
  version = "0.0.1";

  src = ./../..;

  phases = [ "unpackPhase" "patchPhase" "checkPhase" "configurePhase" "installPhase" ];

  patchPhase = if useClang then
  ''
    substituteInPlace ./tools/create_wrappers.sh --replace '"clang' '"hardeningDisable=all exec ${internalCompiler}'
  ''
  else "";
  
  checkPhase = ''
    echo ./tools/build.sh ${compilerString}test ${gcc}/bin/gcc
  '';
  
  postInstall = ''
    ln -s $out/bin/gcc-wrap $out/bin/cc
    substituteInPlace $out/bin/${compilerString}-wrap --replace 'exec ${compilerString}' 'hardeningDisable=all exec ${stdenv.cc}/bin/${compilerString}'
  '';

  doCheck = true;
  dontDisableStatic = true;

  hardeningDisable = ["all"];
  nativeBuildInputs = [ ];
}