anchor.diff:      # should be patched with a less useless default PATH, but for now
       # we add everything we need manually.
       wrapProgram "$out/bin/woeusb" \
  -      --set PATH '${stdenv.lib.makeBinPath [ coreutils dosfstools findutils gawk gnugrep grub2_light ncurses ntfs3g parted utillinux wget ]}'
  +      --set PATH '${stdenv.lib.makeBinPath [ coreutils dosfstools findutils gawk gnugrep grub2_light ncurses ntfs3g parted utillinux wget p7zip ]}'
     '';
   
     doInstallCheck = true;
  
positive.code:     sha256 = "0jzgwh9xv92yns5yi5zpl49zbp3csh6m6iclgq070awpjpsqlqi0";
    };
  
    buildInputs = [ wxGTK30 autoreconfHook makeWrapper ];
  
    postPatch = ''
      # Emulate version smudge filter (see .gitattributes, .gitconfig).
  
negative.code: { stdenv, fetchFromGitHub, autoreconfHook, makeWrapper
  , coreutils, dosfstools, findutils, gawk, gnugrep, grub2_light, ncurses, ntfs3g, parted, p7zip, utillinux, wget
  , wxGTK30 }:
  
  stdenv.mkDerivation rec {
  