From a5fb8eec04aa9e35c8fb094b3bc460e6b1ec4938 Mon Sep 17 00:00:00 2001
From: "Brian J. Cardiff" <bcardiff@gmail.com>
Date: Tue, 6 Oct 2020 18:36:24 -0300
Subject: [PATCH] Allow  -Dgc_none to "work" with weak_ref

Otherwise it is impossible on medium projects with crystal-db to run with the gc_none flag.
---
 src/gc/none.cr | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/gc/none.cr b/src/gc/none.cr
index 1c1690a0e368..4f5cf5f7f7e3 100644
--- a/src/gc/none.cr
+++ b/src/gc/none.cr
@@ -43,6 +43,9 @@ module GC
   def self.add_finalizer(object)
   end
 
+  def self.register_disappearing_link(pointer : Void**)
+  end
+
   def self.stats
     zero = LibC::ULong.new(0)
     Stats.new(zero, zero, zero, zero, zero)