Added more NORETURN declarations

1 files changed, 2 insertions, 1 deletions

diff --git a/hash.c b/hash.c
index ab6dd3ba79..8b6ea34229 100644
--- a/hash.c
+++ b/hash.c
@@ -6328,6 +6328,7 @@ env_reject(VALUE _)
     return rb_hash_delete_if(env_to_hash());
 }
 
+NORETURN(static VALUE env_freeze(VALUE self));
 /*
  * call-seq:
  *   ENV.freeze
@@ -6339,7 +6340,7 @@ static VALUE
 env_freeze(VALUE self)
 {
     rb_raise(rb_eTypeError, "cannot freeze ENV");
-    return self; /* Not reached */
+    UNREACHABLE_RETURN(self);
 }
 
 /*