[libmediaart] extract*: Add missing config.h includes

[Carlos Garnacho <carlosg src gnome org>]

commit 8c8a1162c4baa73e617475cdb435eacaff77e241
Author: Carlos Garnacho <carlosg gnome org>
Date:   Thu Aug 10 14:16:20 2017 +0200

    extract*: Add missing config.h includes
    
    This was making the functions defined in extractgeneric.h not really
    exported.

 libmediaart/extractdummy.c  |    2 ++
 libmediaart/extractpixbuf.c |    2 ++
 2 files changed, 4 insertions(+), 0 deletions(-)
---
diff --git a/libmediaart/extractdummy.c b/libmediaart/extractdummy.c
index 6ae89d5..a11f866 100644
--- a/libmediaart/extractdummy.c
+++ b/libmediaart/extractdummy.c
@@ -20,6 +20,8 @@
  * Philip Van Hoof <philip codeminded be>
  */
 
+#include "config.h"
+
 #include "extractgeneric.h"
 
 /**
diff --git a/libmediaart/extractpixbuf.c b/libmediaart/extractpixbuf.c
index 3b2854b..1a12195 100644
--- a/libmediaart/extractpixbuf.c
+++ b/libmediaart/extractpixbuf.c
@@ -20,6 +20,8 @@
  * Philip Van Hoof <philip codeminded be>
  */
 
+#include "config.h"
+
 #include <gdk-pixbuf/gdk-pixbuf.h>
 
 #include "extractgeneric.h"