nobu	2013-07-22 23:24:41 +0900 (Mon, 22 Jul 2013)

  New Revision: 42114

  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=rev&revision=42114

  Log:
    readline.c: $SAFE 4
    
    * ext/readline/readline.c (readline_s_delete_text): call rb_secure
      only if level 4 is allowed.  otherwise do nothing.

  Modified files:
    trunk/ext/readline/readline.c

Index: ext/readline/readline.c
===================================================================
--- ext/readline/readline.c	(revision 42113)
+++ ext/readline/readline.c	(revision 42114)
@@ -578,7 +578,9 @@ readline_s_insert_text(VALUE self, VALUE https://github.com/ruby/ruby/blob/trunk/ext/readline/readline.c#L578
 static VALUE
 readline_s_delete_text(int argc, VALUE *argv, VALUE self)
 {
-    rb_secure(RUBY_SAFE_LEVEL_MAX);
+#if RUBY_SAFE_LEVEL_MAX >= 4
+    rb_secure(4);
+#endif
     rb_check_arity(argc, 0, 2);
     if (rl_line_buffer) {
 	char *p, *ptr = rl_line_buffer;

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