> I see, thanks. Don't know next release(e.g.,1.5.2)
> will support or not.

It will be included in the next _major_ release, say, 1.6. Probably.

> > The XPG4DL source (from which the NetBSD's locale
> > was made) seems to
> > have zh_CN.eucCN, zh_TW.BIG5, and zh_TW.eucTW.
> 
> Okay. But the correct is zh_TW.Big5, not zh_TW.BIG5.
> Hope they fixed it...

AFAIK, locale names are not standardized neither by POSIX nor ISO. So
I think that it can't be said if "zh_TW.BIG5" is wrong or not.

I don't know where the (wrong) name ("zh_TW.BIG5") comes from. But at
least X uses "zh_TW.Big5" as you say.

Regards,
Masao