LANG warning in Synaptic

[Eric P <eric.maillist@gmail.com>]

Hi all,

I run Debian with LANG=ja_JP.EUC-JP.

However, if I run synaptic in English (LANG=en_US && synaptic), I get
hammered with these messages.

perl: warning: Falling back to the standard locale ("C").
perl: warning: Setting locale failed.
perl: warning: Please check that your locale settings:
        LANGUAGE = (unset),
        LC_ALL = (unset),
        LANG = "en_US"
    are supported and installed on your system.
perl: warning: Falling back to the standard locale ("C").


Is there anyway around this?  I need the Japanese environment, but it's
not my first language so I also need to pop to English (for myself and
for posting issues on other mailing lists).

Any ideas?

Yoroshiku!
Eric P.