make isClang work the way a user might expect

, cc ? null, libc ? null, binutils ? null, coreutils ? null, shell ? stdenv.shell

, zlib ? null, extraPackages ? [], extraBuildCommands ? ""

, dyld ? null # TODO: should this be a setup-hook on dyld?

, isGNU ? false, isClang ? false

, isGNU ? false, isClang ? cc.isClang or false

}:

with stdenv.lib;

    # On some ARM platforms --enable-thumb

    "--enable-shared --disable-static"

    (enableFeature true "pic")

    (if (stdenv.cc.cc.isClang or false) then "--cc=clang" else null)

    (if stdenv.cc.isClang then "--cc=clang" else null)

    (enableFeature smallBuild "small")

    (enableFeature runtimeCpuDetectBuild "runtime-cpudetect")

    (enableFeature grayBuild "gray")

let

  inherit (stdenv.lib) optional;

  isClang = (stdenv.cc.cc.isClang or false);

in

stdenv.mkDerivation rec{

  name = "iniparser-3.1";

  patches = ./no-usr.patch;

  # TODO: Build dylib on Darwin

  buildFlags = (if stdenv.isDarwin then [ "libiniparser.a" ] else [ "libiniparser.so" ])

    ++ optional isClang "CC=clang";

  buildFlags = (if stdenv.isDarwin then [ "libiniparser.a" ] else [ "libiniparser.so" ]) ++ [ "CC=cc" ];

  installPhase = ''

    mkdir -p $out/lib

{ stdenv, appleDerivation, icu, dyld, libdispatch, launchd, libclosure }:

# this project uses blocks, a clang-only extension

assert stdenv.cc.isClang;

appleDerivation {

  buildInputs = [ dyld icu libdispatch launchd libclosure ];

          nativePrefix = bootstrapTools;

          nativeLibc   = false;

          libc         = last.pkgs.darwin.Libsystem;

          isClang      = true;

          cc           = { name = "clang-9.9.9"; outPath = bootstrapTools; };

        };