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author | nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2016-04-06 13:41:33 +0000 |
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committer | nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2016-04-06 13:41:33 +0000 |
commit | f3135ed29b58d69e288ac93098396fc7d37a94c2 (patch) | |
tree | 6d76b3a3a0ea89ec8eb208881c437e67c0d451a1 /configure.in | |
parent | acfabe4bc8623a41a67ab5c0f98a9a065f42df63 (diff) | |
download | ruby-f3135ed29b58d69e288ac93098396fc7d37a94c2.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
Diffstat (limited to 'configure.in')
-rw-r--r-- | configure.in | 5 |
1 files changed, 4 insertions, 1 deletions
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; } |