test-float fails on regular PowerPC, too.

[Andreas Metzler]

Hello,

test-float fails on PowerPC (not PowerPC64), too. This causes
testsuite failures in grep 2.9 and GnuTLS 2.12.10. There is bug report
on savannah for grep. <http://savannah.gnu.org/bugs/?33710>
-------------------------
(sid)address@hidden:~/GNUTLS/grep-2.9/gnulib-tests$ ./test-float
test-float.c:303: assertion failed
Aborted
-------------------------

Upgrading test-float.c to GIT head, i.e. applying 
9926b90d5159916a539b49359b3589fe89c2d987, triggers the next assertion:
-------------------------
$ ./test-float
test-float.c:331: assertion failed
Aborted
-------------------------

Building with -mlong-double-64 (which is what RedHat/Fedora are doing)
makes the test succeed (even without
9926b90d5159916a539b49359b3589fe89c2d987).

cu andreas
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