From 7a6b1950216490f64d3e318a685fe83986cf1c80 Mon Sep 17 00:00:00 2001
From: andri lim <jangko128@gmail.com>
Date: Wed, 27 Mar 2019 19:53:28 +0700
Subject: [PATCH] fix nimbus/premix appveyor build

---
 eth/p2p/rlpx.nim | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/eth/p2p/rlpx.nim b/eth/p2p/rlpx.nim
index da0a697..99f3802 100644
--- a/eth/p2p/rlpx.nim
+++ b/eth/p2p/rlpx.nim
@@ -1121,7 +1121,7 @@ proc handshakeImpl[T](peer: Peer,
                       sendFut: Future[void],
                       responseFut: Future[T],
                       timeout: Duration): Future[T] {.async.} =
-  sendFut.addCallback do (arg: pointer):
+  sendFut.addCallback do (arg: pointer) {.gcsafe.}:
     if sendFut.failed:
       debug "Handshake message not delivered", peer