Testsuite construction question

[Jerry James]

I've got bignums purring along pretty well on Linux using GNU MP and
limping along with a thorn in its foot on Solaris 5.8 using the native
MP.  (Man, that's a badly designed interface!)

It's about time I learned about testsuites.  I did a little bit of work
on tests/automated/lisp-tests.el.  Now I want to write some tests that
involve constants the un-bignumed reader can't grok.  How should I
handle that?  I thought of putting it into a separate test file, but it
looks like src/Makefile.in.in just runs everything in tests/automated,
so that won't help.  I could wrap the whole testsuite in

  (when (featurep 'bignum)
   ...)

but the reader will still try to tokenize the body.  Is there some way I
can tell a no-bignum XEmacs, "don't even try to read this file; just go
away and be happy?"

I could do something like mule-tests does, but part of the point is to
test the bignum-enhanced reader.  Also, I'll have the same problem with
ratios.

Thanks,
-- 
Jerry James
http://www.ittc.ku.edu/~james/