anchor.diff:    '';
   
     nativeBuildInputs = [ premake4 ];
  +
     premakefile = "projects/premake4.lua";
   
     installPhase = ''
  
positive.code:     homepage = "https://github.com/garrynewman/bootil";
      # License unsure - see https://github.com/garrynewman/bootil/issues/21
      license = licenses.free;
      maintainers = [ maintainers.abigailbuccaneer ];
      platforms = platforms.all;
      # Build uses `-msse` and `-mfpmath=sse`
      badPlatforms = [ "aarch64-linux" ];
    };
  
negative.code: { lib
  , stdenv
  , fetchFromGitHub
  , premake4
  }:
  
  stdenv.mkDerivation {
    pname = "bootil";
    version = "unstable-2019-11-18";
  
    src = fetchFromGitHub {
      owner = "garrynewman";
      repo = "bootil";
      rev = "beb4cec8ad29533965491b767b177dc549e62d23";
      sha256 = "1njdj6nvmwf7j2fwqbyvd1cf5l52797vk2wnsliylqdzqcjmfpij";
    };
  
    # Avoid guessing where files end up. Just use current directory.
    postPatch = ''
  