xemacs: how to suppress a warning

[a at zeos.net]

Every time I start xemacs, it reads in a separate buffer:

(1) (xintl/warning) System supports locale `' but X Windows does not

Indeed, locales is as follows:

LANG=
LC_CTYPE=ru_RU.CP866
LC_COLLATE="C"
LC_TIME="C"
LC_NUMERIC="C"
LC_MONETARY="C"
LC_MESSAGES="C"
LC_ALL=

and X Windows does not support ru_RU.CP866. But I do not need this reminder
a hundred times in a day.

How to prevent this warning?

Elisej Babenko