merge revision(s) 54803: [Backport #14321]
* configure.in (rb_cv_lgamma_r_pm0): check if lgamma_r(+0.0)
returns positive infinity, in addition to lgamma_r(-0.0).
AIX returns an incorrect result of negative infinity.
* math.c (ruby_lgamma_r): handle +0.0, in addition to -0.0.
Added by usa (Usaku NAKAMURA) about 6 years ago
merge revision(s) 54803: [Backport #14321]
* configure.in (rb_cv_lgamma_r_pm0): check if lgamma_r(+0.0)
returns positive infinity, in addition to lgamma_r(-0.0).
AIX returns an incorrect result of negative infinity.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_3@62141 b2dd03c8-39d4-4d8f-98ff-823fe69b080e