[Bug 1323] wctomb does not fail on invalid characters

[Wine Bugs]

http://bugs.winehq.com/show_bug.cgi?id=1323

------- Additional Comments From [e-mail]  2003-22-06 09:00 -------
Bug comments restored from Gmane.org:

To determine whether text is ansii, unicode (big or little endian) a series of
test are performed including calling wctomb. This routine should return -1 if
the conversion cannot be performed in the current locale. As a result, under
Wine, an ansii string appears to be unicode (both big or little endian).