I made a CVS update & build this morning to the current devel branch (
22.0.50.1).  The behavior of `create-fontset-from-fontset-spec' seems
change.  Emacs no longer use assigned fonts for each charset.  I made 2
screenshots to describe the problem.  The first one is from CVS version 2005
May 20, in which Emacs uses exactly the font I assiged to chinese charset.
The second one is CVS version 2006 Jul 8, in which Emacs does not use the
font I assigned to chinese charset but picks one itself.