[gnome-chess] Add appdata-validate to 'make check'

[Michael Catanzaro <mcatanzaro src gnome org>]

commit 6ee65f3227e9fed2c3c907c25af9efcfdce43f70
Author: Michael Catanzaro <mcatanzaro gnome org>
Date:   Thu Sep 26 09:12:38 2013 -0500

    Add appdata-validate to 'make check'

 configure.ac     |    2 ++
 data/Makefile.am |    4 ++++
 2 files changed, 6 insertions(+), 0 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index bf82ba3..f0fd357 100644
--- a/configure.ac
+++ b/configure.ac
@@ -33,6 +33,8 @@ PKG_CHECK_MODULES(TEST, [
   gio-2.0
 ])
 
+AC_PATH_PROG(APPDATA_VALIDATE, appdata-validate)
+
 dnl ###########################################################################
 dnl Disable C warnings
 dnl ###########################################################################
diff --git a/data/Makefile.am b/data/Makefile.am
index c2089cb..22f1e2e 100644
--- a/data/Makefile.am
+++ b/data/Makefile.am
@@ -24,6 +24,10 @@ dist_sysconf_DATA = chess-engines.conf
 
 dist_man_MANS = gnome-chess.6
 
+
+check-local: $(appdata_DATA)
+       $(APPDATA_VALIDATE) $(appdata_DATA)
+
 EXTRA_DIST = \
        $(appdata_in_files) \
        $(gsettings_SCHEMAS)