anchor.diff:    nativeBuildInputs = [
       ncurses
       makeWrapper
  +    python3Packages.wrapPython
     ];
   
     buildInputs = [
  
positive.code:     # fix executable includes
      chmod -x $out/include/coz.h
  
      # make sure that PYTHONPATH doesn't leak from the environment
      wrapProgram $out/bin/coz \
        --unset PYTHONPATH
    '';
  
    meta = {
  
negative.code: , libelfin
  , ncurses
  , python3
  , python3Packages
  , makeWrapper
  }:
  stdenv.mkDerivation rec {
  