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+Fri Dec  5 18:13:39 2008  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* win32/win32.c (rb_w32_isatty): check whether fd is valid.
+
 Fri Dec  5 12:49:24 2008  NAKAMURA Usaku  <usa@ruby-lang.org>
 
 	* win32/win32.c (waitpid): fix bug of checking child slot.