Failed to initialize lc_messages to ''

Hi,
I have problem start database.

1) I compile postgresql 7.3.3 with parameters.

./configure --enable-nls --enable-multibyte --enable-locale

2) Then set env variables ,

export LANG=cs_CZ

3) initdb -D /my_cz_db

Initdb returned :

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 cs_CS.
This locale setting will prevent the use of indexes for pattern matching
operations. If that is a concern, rerun initdb with the collation order
set to "C". For more information see the Administrator's Guide.

Fixing permissions on existing directory /var/lib/postgres/data2... ok
creating directory /var/lib/postgres/data2/base... ok
creating directory /var/lib/postgres/data2/global... ok
creating directory /var/lib/postgres/data2/pg_xlog... ok
creating directory /var/lib/postgres/data2/pg_clog... ok
creating template1 database in /var/lib/postgres/data2/base/1... 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

4) /usr/local/pgsql/bin/postmaster -D /var/lib/postgres/my_cz_db

Postmaster returned:

Failed to initialize lc_messages to ''
FATAL: invalid value for option 'LC_MESSAGES': 'cs_CZ'

Thanks.

--
Rado Petrik <r(dot)p(at)szm(dot)sk>