nobu	2016-03-07 10:05:36 +0900 (Mon, 07 Mar 2016)

  New Revision: 54012

  https://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=54012

  Log:
    io.c: remove extra declarations
    
    * io.c (rb_io_set_encoding): remove extra declarations,
      rb_std{in,out,err} are defined in this file.

  Modified files:
    trunk/io.c
Index: io.c
===================================================================
--- io.c	(revision 54011)
+++ io.c	(revision 54012)
@@ -10872,7 +10872,6 @@ rb_io_set_encoding(int argc, VALUE *argv https://github.com/ruby/ruby/blob/trunk/io.c#L10872
 void
 rb_stdio_set_default_encoding(void)
 {
-    extern VALUE rb_stdin, rb_stdout, rb_stderr;
     VALUE val = Qnil;
 
     rb_io_set_encoding(1, &val, rb_stdin);

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