bintuils working, nothing else

gcc-cross.nix

self: super:

let target-gcc = arch:
  let target = {
    config = arch;
    libc = null;
    isDarwin = false;
  };
  #binutils = self.pkgs.binutils.override {
  #  targetPlatform = target;
  #};
  binutils = self.pkgs.wrapBintoolsWith {
    libc = null;
    bintools = 
      self.pkgs.binutils-unwrapped.overrideAttrs (old: rec {
        configurePlatforms = ["build" "host"];
        targetPrefix = "${arch}-";
        name = targetPrefix + "binutils-${old.passthru.version}";
        passthru = old.passthru // {
          inherit targetPrefix;
        };
        configureFlags = old.configureFlags ++ ["--target=${arch}"];
      });
  };
  in self.pkgs.wrapCCWith {
    name = "gcc-" + arch;
    cc = self.pkgs.gcc7.cc.override {
      targetPlatform = target;
      crossStageStatic = true;
      langCC = false;
      langC = true;
      libcCross = null;
      enableShared = false;
      targetPackages.stdenv.cc.bintools = binutils;
    };
    bintools = binutils;
    libc = null;
  };
in
{
  gcc-cross = {
    i686 = target-gcc "i686-elf";
    #riscv = target-gcc "riscv64-elf";
    arm = target-gcc "arm-none-eabi";
    #redox = target-gcc "x86_64-elf-redox";
  };
}