anchor.diff:  
     makeFlags = [
       "PREFIX=$(out)"
  -    "NSSHARED=${buildsystem}/share/netsurf-buildsystem"
       "TARGET=${uilib}"
     ];
   
  
positive.code:   name = "netsurf-${version}";
    version = "3.9";
  
    # UI libs incldue Framebuffer, and gtk
  
    src = fetchurl {
      url = "http://download.netsurf-browser.org/netsurf/releases/source/netsurf-${version}-src.tar.gz";
      sha256 = "1hzcm2s2wh5sapgr000lg63hcdbj6hyajxl43xa1x80kc5piqbyp";
  
negative.code: { stdenv, fetchurl, fetchpatch, pkgconfig, libpng, openssl, curl, gtk2, check, SDL
  , libXcursor, libXrandr, makeWrapper
  , libwebp
  , libxml2, libidn, perl, perlPackages, xxd
  , uilib ? "framebuffer"
  , nsgenbind
  , libnsfb
  , libwapcaplet
  