TRAMP 2.1.13 on XEmacs 21.4 patch 21 wont compile

[Testing]

I have a problem with configuring and compiling Tramp 2.1.13:

XEmacs 21.4 (patch 21) "Educational Tevelvision" [Lucid] (i686-pc-cygwin, Mule)

$ ./configure --with-xemacs --prefix=/home/testimap1/elisp/xemacs-packages/
     lisp/tramp-2.1.13 --with-contrib
configure: Tramp 2.1.13
checking for gmake... no
checking for make... make
checking for reasonable make version... ok
checking whether make sets $(MAKE)... yes
checking for xemacs... yes
checking for xemacs flavor... xemacs
checking for xemacs gateway support... no
checking for xemacs utilities support... yes
checking for xemacs version... ok
checking for base64.el... ok
checking for format-spec.el... ok
checking for password.el... ./configure: line 2331:  6100 Aborted
  (core dumped) ${EM} "(let ((x ${elisp})) (write-region (if (stringp x) (princ
x 'ignore) (prin1-to-string x)) nil \"${OUTPUT}\"nil 5))" 1>&5 2>&1

configure: error: calling xemacs


What do I need to do to fix this?

Perhaps there is a later version of Tramp that I can try that works
with XEmacs and supports:

  ssh from cygwin-PC machine A through Unix machine B to Linux machine C

If so, where can I retrieve this version?

What is the XEmacs setup for tramp-multi-connect-X and/or
 tramp-default-proxies-alist and the XEmacs syntax:

  ^X^F /[multi:ssh:testimap1@machine-B.undp.org:ssh:testimap1@machine-C.undp.o
    rg]/home/testimap1/file1.txt

(long lines are wrapped)

to achieve this?

Thanks.