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+Thu Dec  4 01:22:41 2008  Tadayoshi Funaba  <tadf@dotrb.org>
+
+	* complex.c (f_signbit): NaN may be signed value.
+
 Wed Dec  3 22:54:39 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 	* parse.y (expr): keyword_not can continue across newline.