diff --git a/testsuite/a11y/children.c b/testsuite/a11y/children.c
index 6a4fcc9a81..91d69f7b87 100644
--- a/testsuite/a11y/children.c
+++ b/testsuite/a11y/children.c
@@ -108,7 +108,7 @@ parent_notify (AtkObject *obj, GParamSpec *pspec, SignalData *data)
   data->parent = atk_object_get_parent (obj);
 }
 
-gboolean
+static gboolean
 do_create_child (STATE *state, gint i)
 {
   if (GTK_IS_ENTRY (state->widget))
diff --git a/testsuite/a11y/derive.c b/testsuite/a11y/derive.c
index a926074f4a..397097237f 100644
--- a/testsuite/a11y/derive.c
+++ b/testsuite/a11y/derive.c
@@ -28,6 +28,8 @@
 typedef GtkButtonAccessible MyButtonAccessible;
 typedef GtkButtonAccessibleClass MyButtonAccessibleClass;
 
+
+GType my_button_accessible_get_type (void);
 G_DEFINE_TYPE (MyButtonAccessible, my_button_accessible, GTK_TYPE_BUTTON_ACCESSIBLE)
 
 static void
@@ -43,6 +45,7 @@ my_button_accessible_class_init (MyButtonAccessibleClass *class)
 typedef GtkButton MyButton;
 typedef GtkButtonClass MyButtonClass;
 
+GType my_button_get_type (void);
 G_DEFINE_TYPE (MyButton, my_button, GTK_TYPE_BUTTON)
 
 static void
diff --git a/testsuite/a11y/meson.build b/testsuite/a11y/meson.build
index ec3a8a3a2a..4bc3c339a0 100644
--- a/testsuite/a11y/meson.build
+++ b/testsuite/a11y/meson.build
@@ -78,6 +78,7 @@ foreach t: a11y_tests
   test (t,
         executable (t, '@0@.c'.format(t),
                     install: get_option('install-tests'),
+                    c_args: common_cflags,
                     install_dir: testexecdir,
                     dependencies: libgtk_dep),
         args: [ '--tap', '-k', ],
diff --git a/testsuite/a11y/tree-relationships.c b/testsuite/a11y/tree-relationships.c
index e23f7b5bd9..f24d70e643 100644
--- a/testsuite/a11y/tree-relationships.c
+++ b/testsuite/a11y/tree-relationships.c
@@ -216,7 +216,7 @@ quit_loop (gpointer data)
 }
 
 static void
-process_pending_idles ()
+process_pending_idles (void)
 {
   GMainLoop *loop = g_main_loop_new (NULL, FALSE);
   g_idle_add (quit_loop, loop);