* egg-com.el (ccl-decode-fixed-euc-jp): Make it XEmacs compatible.

* egg-com.el (ccl-decode-fixed-euc-jp): Make it XEmacs compatible.
(ccl-decode-fixed-euc-kr): Ditto.
(decode-fixed-euc-china-region): Check against the charset sisheng
which is an XEmacs version of chinese-sisheng.
Use make-char instead of writing internal byte-sequence directly.
(comm-format-u16-string): Work around the problem that XEmacs does
not call pre-write-conversion when encode-coding-string is called.
(comm-unpack-u16-string): Work around the problem that XEmacs does
not call post-read-conversion when decode-coding-string is called.

* egg-com.el: Add call to XEmacs version of make-coding-system.