anchor.diff:  
     buildInputs = [
       alsaLib
  -    bc  # for the Everything module calculator mode
  +    bc # for the Everything module calculator mode
       bzip2
       efl
       gdbm
  
positive.code:       --replace "ecore_exe_pipe_run(\"bc -l\"" "ecore_exe_pipe_run(\"${bc}/bin/bc -l\""
    '';
  
    mesonFlags = [ "-Dsystemdunitdir=lib/systemd/user" ];
  
    enableParallelBuilding = true;
  
  
negative.code: { stdenv
  , fetchurl
  , meson
  , ninja
  , pkgconfig
  , gettext
  , alsaLib
  , bc
  , bzip2
  , efl
  , gdbm
  , libXdmcp
  , libXrandr
  , libcap
  , libffi
  , libpthreadstubs
  , libxcb
  , luajit
  , mesa
  , pam
  , pcre
  , xcbutilkeysyms
  , xkeyboard_config
  
  , bluetoothSupport ? true, bluez5
  , pulseSupport ? !stdenv.isDarwin, libpulseaudio
  }:
  
  stdenv.mkDerivation rec {
  