1 files changed, 8 insertions, 1 deletions
diff --git a/io.c b/io.c
index 43e2458668..7c0fbd8d2b 100644
--- a/io.c
+++ b/io.c
@@ -3,7 +3,7 @@
   io.c -
 
   $Author: matz $
-  $Date: 1995/01/10 10:42:39 $
+  $Date: 1996/12/25 10:42:39 $
   created at: Fri Oct 15 18:08:59 JST 1993
 
   Copyright (C) 1993-1996 Yukihiro Matsumoto
@@ -116,6 +116,11 @@ closed()
     Raise(eIOError, "closed stream");
 }
 
+void
+io_wrong_type()
+{
+}
+
 /* writing functions */
 VALUE
 io_write(io, str)
@@ -1738,6 +1743,8 @@ Init_IO()
     cIO = rb_define_class("IO", cObject);
     rb_include_module(cIO, mEnumerable);
 
+    rb_undef_method(CLASS_OF(cIO), "new");
+
     rb_define_singleton_method(cIO, "popen", io_popen, -1);
     rb_define_singleton_method(cIO, "foreach", io_foreach, 1);
     rb_define_singleton_method(cIO, "select", f_select, -1);