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+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