From 6a79276eddaafb5d80252b173c535e63f9d5c620 Mon Sep 17 00:00:00 2001 From: nobu Date: Wed, 6 Apr 2016 13:41:33 +0000 Subject: configure.in: fix lgamma_r condition * configure.in (rb_cv_lgamma_r_m0): fix the condition for lgamma_r(-0.0). [Bug #12249] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@54503 b2dd03c8-39d4-4d8f-98ff-823fe69b080e --- ChangeLog | 5 +++++ configure.in | 5 ++++- 2 files changed, 9 insertions(+), 1 deletion(-) diff --git a/ChangeLog b/ChangeLog index aae738bd3b..f8d2b81b85 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,8 @@ +Wed Apr 6 22:41:31 2016 Nobuyoshi Nakada + + * configure.in (rb_cv_lgamma_r_m0): fix the condition for + lgamma_r(-0.0). [Bug #12249] + Wed Apr 6 17:38:42 2016 NAKAMURA Usaku * tool/downloader.rb (RubyGems.download): follow the change of the diff --git a/configure.in b/configure.in index 3454d3ae82..57f767c5f1 100644 --- a/configure.in +++ b/configure.in @@ -2516,8 +2516,11 @@ int main(int argc, char **argv) { int sign; + double x = lgamma_r(-0.0, &sign); - if (lgamma_r(-0.0, &sign) >= 0) return EXIT_FAILURE; + /* should be [+inf, -1] */ + if (x <= 0) return EXIT_FAILURE; + if (!isinf(x)) return EXIT_FAILURE; if (sign != -1) return EXIT_FAILURE; return EXIT_SUCCESS; } -- cgit v1.2.3