[glibmm/glibmm-2-54] tests: Avoid unused function warnings from G_DECLARE_INTERFACE()



commit 2dd089653344c872523cdad9137b7fa1d280186c
Author: Murray Cumming <murrayc murrayc com>
Date:   Wed Sep 20 09:52:23 2017 +0200

    tests: Avoid unused function warnings from G_DECLARE_INTERFACE()

 tests/glibmm_interface_move/main.cc |    7 +++++++
 1 files changed, 7 insertions(+), 0 deletions(-)
---
diff --git a/tests/glibmm_interface_move/main.cc b/tests/glibmm_interface_move/main.cc
index c097cbb..1c3b028 100644
--- a/tests/glibmm_interface_move/main.cc
+++ b/tests/glibmm_interface_move/main.cc
@@ -20,6 +20,13 @@ static void test_Iface_init(gpointer)
 GType
 test_Iface_get_type(void)
 {
+  // Avoid compiler warnings about unused functions.
+  // TODO: With C++17, use [[maybe unused]].
+  (void)TEST_IFACE;
+  (void)TEST_IS_IFACE;
+  (void)TEST_IFACE_GET_IFACE;
+  (void)glib_autoptr_cleanup_TestIface;
+
   static GType type = 0;
 
   if (!type)


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