anchor.diff:      "--with-app-defaults=${placeholder "out"}/share/xscreensaver/app-defaults"
     ];
   
  -  postInstall = lib.optionalString forceInstallAllHacks ''
  +  postInstall = ''
  +    for bin in $out/bin/*; do
  +      wrapProgram "$bin" \
  +        --prefix PATH : "$out/libexec/xscreensaver" \
  +        --prefix PATH : "${lib.makeBinPath [ coreutils ]}"
  +    done
  +  '' + lib.optionalString forceInstallAllHacks ''
       make -j$NIX_BUILD_CORES -C hacks/glx dnalogo
       cat hacks/Makefile.in \
         | grep -E '([a-z0-9]+):[[:space:]]*\1[.]o' | cut -d : -f 1 | xargs make -j$NIX_BUILD_CORES -C hacks
  
positive.code: { lib, stdenv, fetchurl
  , pkg-config, intltool
  , perl, gettext, libX11, libXext, libXi, libXt
  , libXft, libXinerama, libXrandr, libXxf86vm, libGL, libGLU, gle
  , gtk2, gdk-pixbuf, gdk-pixbuf-xlib, libxml2, pam
  , systemd
  , forceInstallAllHacks ? false
  , withSystemd ? stdenv.isLinux
  }:
  
negative.code:   };
  
    nativeBuildInputs = [
      pkg-config intltool makeWrapper
    ];
  
    buildInputs = [
  