anchor.diff:      paxmark m $bin/bin/terra
     '';
   
  -  buildInputs = with llvmPackages; [ which lua llvm clang-unwrapped ncurses ];
  +  buildInputs = with llvmPackages; [ lua llvm clang-unwrapped ncurses ];
   
     meta = with stdenv.lib; {
       inherit (src.meta) homepage;
  
positive.code: { stdenv, fetchFromGitHub, fetchurl, which, llvmPackages, ncurses, lua }:
  
  let
    luajitArchive = "LuaJIT-2.0.4.tar.gz";
  
negative.code:   '';
  
    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}
    '';
  