anchor.diff: -{ stdenv, lib, fetchFromGitHub, writeShellScript
  -, gtest, meson, ninja, pkg-config
  +{ lib, fetchFromGitHub, stdenv
  +, gtest, makeWrapper, meson, ninja, pkg-config
   , alsa-lib, fluidsynth, libGL, libGLU, libogg, libpng, munt, opusfile, SDL2, SDL2_net
   }:
   
  -let
  -  dosbox_run = writeShellScript "dosbox" ''
  -    $(dirname "$0")/dosbox-staging "$@"
  -  '';
  -
  -in stdenv.mkDerivation rec {
  +stdenv.mkDerivation rec {
     pname = "dosbox-staging";
     version = "0.77.1";
   
  
positive.code:     # binary to be named dosbox, but get out of the way of vanilla dosbox if the user
      # desires to install that as well.
      mv $out/bin/dosbox $out/bin/${pname}
      cp -r ${dosbox_run} "$out/bin/dosbox"
      cp $out/share/man/man1/dosbox.1.gz $out/share/man/man1/${pname}.1.gz
    '';
  
  
negative.code:     sha256 = "07jwmmm1bhfxavlhl854cj8l5iy5hqx5hpwkkjbcwqg7yh9jfs2x";
    };
  
    nativeBuildInputs = [ gtest makeWrapper meson ninja pkg-config ];
    buildInputs = [ alsa-lib fluidsynth libGL libGLU libogg libpng munt opusfile SDL2 SDL2_net ];
  
    hardeningDisable = [ "format" ];
  