NLS on MSVC strikes back!

I have compiled 8.3 (CVS HEAD) with NLS on a XP box. But it seems that NLS
support is broke.
Could someone please confirm this.

My test:

Gevik=#
Gevik=# show lc_messages ;
lc_messages
----------------------------
English_United States.1252
(1 row)

Gevik=#
Gevik=# set lc_messages TO 'de_DE.utf8';
SET
Gevik=# show lc_messages ;
lc_messages
-------------
de_DE.utf8
(1 row)

Gevik=# select to_char(now(), 'TMDay, DD TMMonth YYYY');
to_char
---------------------------
Tuesday, 12 February 2008
(1 row)

Gevik=#
Gevik=# set lc_messages TO 'es_ES.utf8';
SET
Gevik=# show lc_messages ;
lc_messages
-------------
es_ES.utf8
(1 row)

Gevik=# select to_char(now(), 'TMDay, DD TMMonth YYYY');
to_char
---------------------------
Tuesday, 12 February 2008
(1 row)