From 71282fa442f86e5659b34b2a3b0886aee4e66aaa Mon Sep 17 00:00:00 2001
From: Dmitriy Ryajov <dryajov@gmail.com>
Date: Fri, 30 Aug 2019 16:15:47 -0600
Subject: [PATCH] make matcher func gcsafe

---
 libp2p/multistream.nim | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libp2p/multistream.nim b/libp2p/multistream.nim
index b606050b7..b6ca77158 100644
--- a/libp2p/multistream.nim
+++ b/libp2p/multistream.nim
@@ -19,7 +19,7 @@ const Ls = "\x03ls\n"
 
 type
   MultisteamSelectException = object of CatchableError
-  Matcher* = proc (proto: string): bool
+  Matcher* = proc (proto: string): bool {.gcsafe.}
 
   HandlerHolder* = object
     proto: string