[Bug 22001] datetime.c test fails when LC_CTYPE="ru_RU.UTF-8"

http://bugs.winehq.org/show_bug.cgi?id=22001

--- Comment #9 from Nikolay Sivov   2010-03-12 03:55:10 ---
Honestly I have mixed feelings about that. It seems that we should use
LOCALE_USER_DEFAULT for format strings any way, same time I don't know how the
following:

---
LANG=
LC_CTYPE=de_DE.utf8
---
LANG=en_US
LC_CTYPE=ru_RU.UTF-8
---

should be properly handled in Wine. Let's wait for some experienced opinion
here, questions are:

- what LC_*/LANG locale data part has priority to set system/user locale in
Wine;
- is there a way to check that control uses system locale in Windows? Is there
a way to alter system locale bits in Windows to see difference?