[gnome-tetravex] configure: check for gio-2.0

[Michael Catanzaro <mcatanzaro src gnome org>]

commit c2e31721f7c31bbd917e18e5f51682d94b864f4a
Author: Michael Catanzaro <mcatanzaro gnome org>
Date:   Sun Oct 27 17:16:40 2013 -0500

    configure: check for gio-2.0
    
    Needed for glib-compile-resources

 configure.ac |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 431cf0c..ac4d843 100644
--- a/configure.ac
+++ b/configure.ac
@@ -17,6 +17,7 @@ GLIB_REQUIRED=2.36.0
 GTK_REQUIRED=3.10.0
 
 PKG_CHECK_MODULES(GNOME_TETRAVEX, [
+  gio-2.0 >= $GLIB_REQUIRED
   glib-2.0 >= $GLIB_REQUIRED
   gtk+-3.0 >= $GTK_REQUIRED
 ])