[gtksourceview] SpaceDrawer: include config.h for windows

[Sébastien Wilmet <swilmet src gnome org>]

commit 5c38f41aa92699c902f9e65a99b9e6291d0dc086
Author: Sébastien Wilmet <swilmet gnome org>
Date:   Sun Nov 13 11:52:02 2016 +0100

    SpaceDrawer: include config.h for windows

 gtksourceview/gtksourcespacedrawer.c |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)
---
diff --git a/gtksourceview/gtksourcespacedrawer.c b/gtksourceview/gtksourcespacedrawer.c
index df77941..5d7cee3 100644
--- a/gtksourceview/gtksourcespacedrawer.c
+++ b/gtksourceview/gtksourcespacedrawer.c
@@ -24,6 +24,10 @@
  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  */
 
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
 #include "gtksourcespacedrawer.h"
 #include "gtksourcespacedrawer-private.h"
 #include "gtksourcebuffer.h"