encnames.c:	public functions for both the backend and the frontend.
conv.c:		static functions and a public table for code conversion
wchar.c:	mostly static functions and a public table for mb string and
		multibyte conversion
mbutils.c:	public functions for the backend only.
		requires conv.c and wchar.c
wstrcmp.c:	strcmp for mb
wstrncmp.c:	strncmp for mb
win866.c:	a tool to generate KOI8 <--> CP866 conversion table
iso.c:		a tool to generate KOI8 <--> ISO8859-5 conversion table
win1251.c:	a tool to generate KOI8 <--> CP1251 conversion table
