From 38eb518feb76efd629a5d28899d5d837c5dc9236 Mon Sep 17 00:00:00 2001
From: nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Mon, 22 Jul 2013 00:48:35 +0000
Subject: [PATCH] readline.c: $SAFE

* ext/readline/readline.c (readline_s_delete_text): $SAFE=4 is
  obsolete.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42102 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 ext/readline/readline.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/ext/readline/readline.c b/ext/readline/readline.c
index 368be99b5b..a4d06b28b4 100644
--- a/ext/readline/readline.c
+++ b/ext/readline/readline.c
@@ -44,6 +44,10 @@
 #include <sys/stat.h>
 #endif
 
+#ifndef RUBY_SAFE_LEVEL_MAX
+#define RUBY_SAFE_LEVEL_MAX 4	/* 2.0 or earlier */
+#endif
+
 static VALUE mReadline;
 
 #define EDIT_LINE_LIBRARY_VERSION "EditLine wrapper"
@@ -574,7 +578,7 @@ readline_s_insert_text(VALUE self, VALUE str)
 static VALUE
 readline_s_delete_text(int argc, VALUE *argv, VALUE self)
 {
-    rb_secure(4);
+    rb_secure(RUBY_SAFE_LEVEL_MAX);
     rb_check_arity(argc, 0, 2);
     if (rl_line_buffer) {
 	char *p, *ptr = rl_line_buffer;