[gnome-disk-utility] Validate appdata in distcheck

[Michael Catanzaro <mcatanzaro src gnome org>]

commit 404282a0422713ec38db7b7df572e4f0e456850e
Author: Michael Catanzaro <mcatanzaro gnome org>
Date:   Mon Jun 29 18:40:57 2015 -0500

    Validate appdata in distcheck

 data/Makefile.am |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/data/Makefile.am b/data/Makefile.am
index b0357c4..a98df81 100644
--- a/data/Makefile.am
+++ b/data/Makefile.am
@@ -34,6 +34,8 @@ appstream_XML = $(appstream_in_files:.xml.in=.xml)
 @INTLTOOL_XML_RULE@
 @GSETTINGS_RULES@
 
+DISTCHECK_CONFIGURE_FLAGS == --enable-appdata-check
+
 EXTRA_DIST =                   \
        $(appstream_in_files)   \
        $(desktop_in_files)     \