[PATCH] Don't use long double *_finite functions if no long double math

[Joseph S. Myers]

Was this bug in 2.15?  If so, I think the patch should be backported to 
2.15 (and we should have a bug for it in Bugzilla - in accordance with the 
rule that developers finding a bug that was user-visible in a release 
should file it in Bugzilla even if immediately fixing it, so people can 
search Bugzilla for known fixed bugs - that bug should be added to NEWS 
as fixed for 2.16, and should be marked with the glibc_2.15 keyword for a 
backport).

-- 
Joseph S. Myers
joseph@codesourcery.com