-# define bindtextdomain(Domainname, Dirname) ((const char *) (Dirname))
-# define bind_textdomain_codeset(Domainname, Codeset) ((const char *) (Codeset))
+# define bindtextdomain(Domainname, Dirname) \
+ ((void) (Domainname), (const char *) (Dirname))
+# define bind_textdomain_codeset(Domainname, Codeset) \
+ ((void) (Domainname), (const char *) (Codeset))