[patch, libfortran] Fix PR 21797

[Thomas Koenig]

I have committed the patch to 4.1 as Steve wrote it, after
regenerating the files and regression-testing again, under
the "obvious" rule.

I had also submitted a patch, which included some m4 style changes
(always quote everything that's not an m4 macro).  After a bit of
reflection, I have decided not to do this, because I didn't want
to have too many styles in the m4 files at one time.  I'll try to
deal with this some other time.

	Thomas

2005-06-12  Steven G. Kargl <kargls@comcast.net>
            Thomas Koenig  <Thomas.Koenig@online.de>

        PR libfortran/PR21797
        * m4/cexp.m4 (csqrt`'q):  Add type qualifyer to
        sqrt and fabs.
        * generated/exp_c4.c:  Regenerated.