anchor.diff:  
     buildInputs =
       [ iasl dev86 libxslt libxml2 xproto libX11 libXext libXcursor libIDL
  -      libcap glib lvm2 python alsaLib curl libvpx pam xorriso makeself perl
  +      libcap glib lvm2 alsaLib curl libvpx pam xorriso makeself perl
         pkgconfig which libXmu libpng patchelfUnstable ]
       ++ optional javaBindings jdk
       ++ optional pythonBindings python
  
positive.code: with stdenv.lib;
  
  let
    buildType = "release";
  
    inherit (importJSON ./upstream-info.json) version extpackRev extpack main;
  
negative.code: , which, alsaLib, curl, libvpx, gawk, nettools, dbus
  , xorriso, makeself, perl, pkgconfig
  , javaBindings ? false, jdk ? null
  , pythonBindings ? false, python2 ? null
  , enableExtensionPack ? false, requireFile ? null, patchelf ? null, fakeroot ? null
  , pulseSupport ? false, libpulseaudio ? null
  , enableHardening ? false
  