[Libva] [gst-vaapi patch] respect GST_PLUGIN_PATH before the gst default path

[Gwenole Beauchesne]

Hi,

2012/12/5 Zhao Halley <halley.zhao at intel.com>:

> @@ -278,7 +281,11 @@ AC_SUBST(GST_PLUGIN_LDFLAGS)
>
>  dnl Check for the GStreamer plugins directory
>  AC_MSG_CHECKING([for GStreamer plugins directory])
> -GST_PLUGINS_DIR=`$PKG_CONFIG gstreamer-$GST_MAJORMINOR --variable pluginsdir`
> +if test -z "$GST_PLUGIN_PATH"; then
> +    GST_PLUGINS_DIR=`$PKG_CONFIG gstreamer-$GST_MAJORMINOR --variable pluginsdir`
> +else
> +    GST_PLUGINS_DIR=$GST_PLUGIN_PATH
> +fi
>  if test -z "$GST_PLUGINS_DIR"; then
>      echo "FAIL FAIL FAIL"
>      GST_PLUGINS_DIR="\$(libdir)/gstreamer-$GST_MAJORMINOR"

Applied, with some minor changes:
- Use test -d $GST_PLUGIN_PATH make it the first check
- Drop the ancient "FAIL FAIL FAIL" message. pkg-config is quite
common nowadays, so this should not fail.

Thanks,
Gwenole.