anchor.diff:    '';
   
     preBuild = ''
  +    cat >Makefile.inc<<EOF
  +    CLANG = ${stdenv.lib.getBin llvmPackages.clang-unwrapped}/bin/clang
  +    LLVM_CONFIG = ${stdenv.lib.getBin llvmPackages.llvm}/bin/llvm-config
  +    EOF
  +
       mkdir -p build
       cp ${luajitSrc} build/${luajitArchive}
     '';
  
positive.code:     paxmark m $bin/bin/terra
    '';
  
    buildInputs = with llvmPackages; [ which lua llvm clang-unwrapped ncurses ];
  
    meta = with stdenv.lib; {
      inherit (src.meta) homepage;
  
negative.code: { stdenv, fetchFromGitHub, fetchurl, llvmPackages, ncurses, lua }:
  
  let
    luajitArchive = "LuaJIT-2.0.4.tar.gz";
  