Compiler warning fixes.

g_thread_init is automatically called since 2.32 (and deprecated since 2.35).
g_type_init is automatically called since 2.36 and will be deprecated in the
future.

indra/plugins/filepicker/legacy.cpp

@@ -70,7 +70,9 @@ namespace LLWindowSDL {
 		if (!tried_gtk_init)
 		{
 			tried_gtk_init = TRUE;
+#if !GLIB_CHECK_VERSION(2, 32, 0)
 			if (!g_thread_supported ()) g_thread_init (NULL);
+#endif
 			//maybe_lock_display();
 			gtk_is_good = gtk_init_check(NULL, NULL);
 			//maybe_unlock_display();