{  system ? builtins.currentSystem,
 buildtype ? "release",
 compiler ? "gcc",
 lib_type ? "shared",
 dep_type ? "shared",
 mesonFlags ? ""
}:

with import <nixpkgs> { inherit system; };

let
  nonlibc1pkg = pkgs.callPackage ({  system ? builtins.currentSystem,
    buildtype ? "release",
    compiler ? "gcc",
    lib_type ? "shared",
    dep_type ? "shared",
    mesonFlags ? ""
   }:

   with import <nixpkgs> { inherit system; };

   stdenv.mkDerivation rec {
    name = "nonlibc-${buildtype}-${compiler}";
    env = buildEnv { name = name; paths = nativeBuildInputs; };
    outputs = [ "out" ];
    nativeBuildInputs = [
     (lowPrio gcc)
     clang
     clang-tools
     cscope
     meson
     ninja
     pandoc
     python3
     valgrind
     which
    ];

    # just work with the current directory (aka: Git repo), no fancy tarness
    src = ../nonlibc;
    # Override the setupHook in the meson nix derviation,
    # so that meson doesn't automatically get invoked from there.
    meson = pkgs.meson.overrideAttrs ( oldAttrs: rec {
     setupHook = "";
    });

    # build
    mFlags = mesonFlags
     + " --buildtype=${buildtype}"
     + " -Dlib_type=${lib_type}"
     + " -Ddep_type=${dep_type}";
    configurePhase = ''
     echo "pkgconfig: $PKG_CONFIG_PATH"
     echo "flags: $mFlags"
     echo "prefix: $out"
     CC=${compiler} meson --prefix=$out build $mFlags
     cd build
     '';

    buildPhase = ''
     ninja test
     ninja install
     '';
   }) {};

in

stdenv.mkDerivation rec {
 name = "memorywell";
 env = buildEnv { name = name; paths = nativeBuildInputs; };
 outputs = [ "out" ];
 nativeBuildInputs = [
  (lowPrio gcc)
  clang
  clang-tools
  cscope
  meson
  ninja
  pandoc
  pkgconfig
  python3
  valgrind
  which
 ];

 # import nonlibc TODO: fixthis
        # I WANT TO CHANGE THIS CALL TO A LOCAL NIX PACKAGE INTO A 'nativeBuildInputs' dependency that nix finds
        # by itself without 'explicitly' specifying where this package is by doing '../'
 nonlibc1 = callPackage ../nonlibc { inherit buildtype; inherit compiler; 
     lib_type = dep_type; inherit dep_type; };
 postPatch = ''
  PKG_CONFIG_PATH="${nonlibc1.outPath}"/lib/pkgconfig/
 '';

 # just work with the current directory (aka: Git repo), no fancy tarness
 src = ./.;

 # Override the setupHook in the meson nix derviation,
 # so that meson doesn't automatically get invoked from there.
 meson = pkgs.meson.overrideAttrs ( oldAttrs: rec {
  setupHook = "";
 });

 # build
 mFlags = mesonFlags
  + " --buildtype=${buildtype}"
  + " -Dlib_type=${lib_type}"
  + " -Ddep_type=${dep_type}";
 configurePhase = ''
  echo "pkgconfig: $PKG_CONFIG_PATH"
  echo "flags: $mFlags"
  echo "prefix: $out"
  CC=${compiler} meson --prefix=$out build $mFlags
  cd build
  ''; 

 buildPhase = '' 
  ninja test
  ninja install
  '';
}