anchor.diff: -{ stdenv, fetchurl
  -, pkgconfig, which, autoreconfHook
  -, rep-gtk, pango, gdk-pixbuf-xlib
  -, imlib, gettext, texinfo
  -, libXinerama, libXrandr, libXtst, libICE, libSM
  +{ stdenv
  +, fetchurl
  +, pkg-config
  +, which
  +, autoreconfHook
  +, rep-gtk
  +, pango
  +, gdk-pixbuf-xlib
  +, imlib
  +, gettext
  +, texinfo
  +, libXinerama
  +, libXrandr
  +, libXtst
  +, libICE
  +, libSM
   , makeWrapper
   }:
   
  -with stdenv.lib;
  -
   stdenv.mkDerivation rec {
  -
     pname = "sawfish";
     version = "1.12.90";
  -  sourceName = "sawfish_${version}";
   
     src = fetchurl {
  -    url = "https://download.tuxfamily.org/sawfish/${sourceName}.tar.xz";
  +    url = "https://download.tuxfamily.org/sawfish/${pname}_${version}.tar.xz";
       sha256 = "18p8srqqj9vjffg13qhspfz2gr1h4vfs10qzlv89g76r289iam31";
     };
   
  -  nativeBuildInputs = [ autoreconfHook pkgconfig ];
  +  nativeBuildInputs = [ autoreconfHook pkg-config ];
     buildInputs = [ which
       rep-gtk pango gdk-pixbuf-xlib imlib gettext texinfo
       libXinerama libXrandr libXtst libICE libSM
  
positive.code:   '';
  
    postInstall = ''
      for i in $out/lib/sawfish/sawfish-menu $out/bin/sawfish-about  $out/bin/sawfish-client $out/bin/sawfish-config $out/bin/sawfish; do
        wrapProgram $i \
          --prefix REP_DL_LOAD_PATH : "$out/lib/rep" \
          --set REP_LOAD_PATH "$out/share/sawfish/lisp"
      done
    '';
  
    meta = {
      description = "An extensible, Lisp-based window manager";
      longDescription = ''
        Sawfish is an extensible window manager using a Lisp-based scripting language.
  
negative.code:       All high-level WM functions are implemented in Lisp for future extensibility
        or redefinition.
      '';
      homepage = "https://sawfish.fandom.com/wiki/Main_Page";
      license = licenses.gpl2;
      maintainers = [ maintainers.AndersonTorres ];
    };
  