From 9f86e50e1e03daff73a36fd8490f0457db98a641 Mon Sep 17 00:00:00 2001
From: Sutou Kouhei <kou@clear-code.com>
Date: Thu, 17 Jun 2021 13:40:11 +0900
Subject: [PATCH] [ruby/fiddle] StringValuePtr may change the val

https://github.com/ruby/fiddle/commit/bddca7c895
---
 ext/fiddle/pointer.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/ext/fiddle/pointer.c b/ext/fiddle/pointer.c
index c5fb442aec..9336f0431c 100644
--- a/ext/fiddle/pointer.c
+++ b/ext/fiddle/pointer.c
@@ -770,6 +770,7 @@ rb_fiddle_ptr_s_to_ptr(VALUE self, VALUE val)
     }
     else if (RTEST(rb_obj_is_kind_of(val, rb_cString))){
 	char *str = StringValuePtr(val);
+        wrap = val;
 	ptr = rb_fiddle_ptr_new(str, RSTRING_LEN(val), NULL);
     }
     else if ((vptr = rb_check_funcall(val, id_to_ptr, 0, 0)) != Qundef){