[gnome-build-meta/abderrahim/flatpak-sdk-fixes: 8/8] sdk/gst-libav: build with system ffmpeg

[Abderrahim Kitouni <akitouni src gnome org>]

commit b5ab159c1a0b62732937b7abf7ece16246941ab8
Author: Abderrahim Kitouni <akitouni gnome org>
Date:   Wed Sep 5 16:19:38 2018 +0100

    sdk/gst-libav: build with system ffmpeg
    
    Fixes #53

 elements/sdk/gst-libav.bst | 3 +++
 1 file changed, 3 insertions(+)
---
diff --git a/elements/sdk/gst-libav.bst b/elements/sdk/gst-libav.bst
index c77687c..441e15c 100644
--- a/elements/sdk/gst-libav.bst
+++ b/elements/sdk/gst-libav.bst
@@ -5,9 +5,12 @@ sources:
   track: master
 depends:
 - sdk/gst-plugins-base.bst
+- sdk/ffmpeg.bst
 - filename: base.bst
   junction: freedesktop-sdk.bst
   type: build
 - filename: base-platform.bst
   junction: freedesktop-sdk.bst
   type: runtime
+variables:
+  conf-local: --with-system-libav