--- src/Numbertext.cxx
+++ src/Numbertext.cxx
@@ -1,6 +1,9 @@
  * 2018 (c) László Németh
  * License: LGPL/BSD dual license */
 
+#if defined __GNUC__
+#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
+#endif
 #include <codecvt>
 #include <locale>
 #include <sstream>