anchor.diff:  
     dontDisableStatic = true;
     
  -  # Darwin Support, optional isDarwin failed
  -  nativeBuildInputs = [ gcc ];
  +  nativeBuildInputs = []
  +    ++ optional stdenv.isDarwin gcc;
       
     configureFlags = [
       "--with-sysdeps=${skalibs}/lib/skalibs/sysdeps"
  
positive.code:     "--with-lib=${skalibs}/lib"
      "--with-dynlib=${skalibs}/lib"
    ]
    ++ (stdenv.lib.optional stdenv.isDarwin "--target=${stdenv.system}");
  
    meta = with stdenv.lib; {
      homepage = http://www.skarnet.org/software/s6-portable-utils/;
      description = "A set of tiny general Unix utilities optimized for simplicity and small size";
      platforms = platforms.all;
  
negative.code: { stdenv, fetchFromGitHub, skalibs, gcc }:
  
  with stdenv.lib;
  
  stdenv.mkDerivation rec {
    name = "s6-portable-utils-${version}";
  