env: preprend gst-build/prefix/etc/xdg to XDG_CONFIG_DIRS
So gst-build/prefix/etc/xdg/tizonia/tizonia.conf can be found. Which one contains path to tizonia plugins. Useful when compiling tizonia-openmax-il and installing it in gst-build 's prefix location: autoreconf -ifs ./configure --disable-player --without-libspotify --prefix=path_to_gst-build/prefix/ make && make install
Allows the following to work: gst-launch-1.0 videotestsrc ! vp8enc ! omxvp8dec ! xvimagesink