7.3RC2 install woes

I have gotten 7.3RC2 finally installed but I am having troubles getting
it to run ...

I did an initdb and then tried to start the postmast but got the
following erro when trying to start the postmaster:

postgres@localhost pgsql7.3RC2]$ bin/initdb -D -E EUC_JP
/usr/local/pgsql7.3RC2/data
The files belonging to this database system will be owned by user
"postgres".
This user must also own the server process.

The database cluster will be initialized with locale en_US.ja_JP.eucJP.
[..]

Failed to initialize lc_messages to ''
ok
creating configuration files... ok
initializing pg_shadow... Failed to initialize lc_messages to ''
ok
enabling unlimited row size for system tables... Failed to initialize
lc_messages to ''
ok
initializing pg_depend... Failed to initialize lc_messages to ''
ok
creating system views... Failed to initialize lc_messages to ''
ok
loading pg_description... Failed to initialize lc_messages to ''
ok
creating conversions... Failed to initialize lc_messages to ''
ok
setting privileges on built-in objects... Failed to initialize
lc_messages to ''
ok
vacuuming database template1... Failed to initialize lc_messages to ''
ok
copying template1 to template0... Failed to initialize lc_messages to ''
ok

Success. You can now start the database server using:

     bin/postmaster -D /usr/local/pgsql7.3RC2/data
or
     bin/pg_ctl -D /usr/local/pgsql7.3RC2/data -l logfile start

[postgres@localhost pgsql7.3RC2]$ bin/pg_ctl -D
/usr/local/pgsql7.3RC2/data start
postmaster successfully started
Failed to initialize lc_messages to ''
FATAL:  invalid value for option 'LC_MESSAGES': 'en_US.ja_JP.eucJP'

Seems postgres doesn't like me setting the encoding to EUC_JP?

Jc