g_hash_table_contains implementation for old glib version

daemon/aux.h

@@ -60,6 +60,12 @@ void g_string_vprintf(GString *string, const gchar *format, va_list args);
 void g_queue_clear(GQueue *);
 #endif
 
+#if !GLIB_CHECK_VERSION(2,32,0)
+static inline int g_hash_table_contains(GHashTable *h, const void *k) {
+	return g_hash_table_lookup(h, k) ? 1 : 0;
+}
+#endif
+
 
 static inline void strmove(char **d, char **s) {
 	if (*d)