In case glib is installed into local prefix dir.
https://bugzilla.gnome.org/show_bug.cgi?id=748626
export GST_VALIDATE_SCENARIOS_PATH=$GST/gst-devtools/validate/data/scenarios:$GST_VALIDATE_SCENARIOS_PATH
export GST_VALIDATE_APPS_DIR=$GST_VALIDATE_APPS_DIR:$GST/gst-editing-services/tests/validate/
export GST_VALIDATE_PLUGIN_PATH=$GST_VALIDATE_PLUGIN_PATH:$GST/gst-devtools/validate/plugins/
+export GIO_EXTRA_MODULES=$GST/prefix/lib/gio/modules:$GIO_EXTRA_MODULES
if [ -d "$GST/gst-libav" -a -d "$GST/gst-ffmpeg" ]; then
echo