i'll enable multibyte LC_CTYPE locale stuff in libc shortly.
	there's a long discussion on PR 12017 and tech-userlevel in the past.
	to summarize:
	- libc.a (for static linked binary) can enjoy singlebyte locale only.
	- libc.so (for shared binary) can enjoy multibyte locale library
	  support.  multibyte locale support needs /usr/lib/runemodule.*.so to
	  get dlopen'ed at runtime.

itojun