Hi, all. With Jung's patch(http://sigsegv.s25.xrea.com/distfiles/citrus/OpenBSD/), i can use Chinese Simp locale(zh_CN.GB18030) successfully, and can use scim(+pinyin) type Chinese now.
Big thanks to Jung and Kevin Lo. And i also wrote a simple documentation(in Chinese) here: http://www.openbsdonly.org/thread-234-1-1.html -- Michael Bibby(Huangbin Zhang) RedHat + OpenBSD
