[gnome-desktop] Ignore deprecations in tests

[Matthias Clasen <matthiasc src gnome org>]

commit d88f70a9792a22917e8ee1a1ac3a351e2f6be686
Author: Matthias Clasen <mclasen redhat com>
Date:   Thu Jun 26 12:51:38 2014 -0400

    Ignore deprecations in tests
    
    This is recent GLib breakage. Don't let that ruin our tests.

 tests/Makefile.am |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/tests/Makefile.am b/tests/Makefile.am
index 2fa928d..e1bd748 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -10,6 +10,8 @@ AM_CPPFLAGS =                                                 \
 
 AM_CFLAGS = -g $(WARN_CFLAGS)
 
+TESTS_ENVIRONMENT = G_ENABLE_DIAGNOSTIC=0
+
 test_programs =                        \
        wall-clock              \
        gtk-reftest             \