anchor.diff:  , freetype, fontconfig, file, nspr, nss
   , libGLU, libGL, sqlite, unzip, makeWrapper
   , hunspell, libevent, libstartup_notification
  +, libffi
   , libvpx
   , libwebp
   , icu, libpng, glib, pciutils
  
positive.code: 
    configureFlags = [
      "--enable-application=${application}"
      "--with-system-jpeg"
      "--with-system-zlib"
      "--with-system-libevent"
      "--with-system-libvpx"
      "--with-system-png" # needs APNG support
      "--with-system-icu"
      "--enable-system-ffi"
      "--enable-system-pixman"
      "--disable-tests"
      "--disable-updater"
  
negative.code:     libevent libstartup_notification
      libpng glib
      nasm icu libvpx
      libffi
      libwebp
      nspr nss
    ]
  