aboutsummaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
authornobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2016-04-06 13:41:33 +0000
committernobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2016-04-06 13:41:33 +0000
commit6a79276eddaafb5d80252b173c535e63f9d5c620 (patch)
tree6d76b3a3a0ea89ec8eb208881c437e67c0d451a1
parent3f1fc5e42b846f902a1dfc84766dd22b359b87c7 (diff)
downloadruby-6a79276eddaafb5d80252b173c535e63f9d5c620.tar.gz
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
-rw-r--r--ChangeLog5
-rw-r--r--configure.in5
2 files changed, 9 insertions, 1 deletions
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 <nobu@ruby-lang.org>
+
+ * 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 <usa@ruby-lang.org>
* 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;
}