* io.c (rb_stdio_set_default_encoding): prototyped.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@24409 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

io.c

@@ -8408,7 +8408,7 @@ rb_io_set_encoding(int argc, VALUE *argv, VALUE io)
 }
 
 void
-rb_stdio_set_default_encoding()
+rb_stdio_set_default_encoding(void)
 {
     extern VALUE rb_stdin, rb_stdout, rb_stderr;
     VALUE val = Qnil;

ruby.c

@@ -1211,7 +1211,7 @@ rb_f_chomp(argc, argv)
     return str;
 }
 
-void rb_stdio_set_default_encoding();
+void rb_stdio_set_default_encoding(void);
 
 static VALUE
 process_options(int argc, char **argv, struct cmdline_options *opt)