time.c (rb_gmtime_r): renamed from rb_gmtime.
(rb_localtime_r): renamed from rb_localtime.
(rb_localtime_r2): call rb_localtime_r and validate the result if
there is overflow problem.
(rb_gmtime_r2): call rb_gmtime_r and validate the result if there
is overflow problem.
configure.in: test localtime(3) overflow. [ruby-dev:40910]
time.c (rb_gmtime_r): renamed from rb_gmtime.
(rb_localtime_r): renamed from rb_localtime.
(rb_localtime_r2): call rb_localtime_r and validate the result if
there is overflow problem.
(rb_gmtime_r2): call rb_gmtime_r and validate the result if there
is overflow problem.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@27237 b2dd03c8-39d4-4d8f-98ff-823fe69b080e