From 9c5c6bdd6fd7bfccd873f4a7b2cebd9698fb37a2 Mon Sep 17 00:00:00 2001
From: Zahary Karadjov <zahary@gmail.com>
Date: Thu, 1 Aug 2019 19:26:22 +0300
Subject: [PATCH] Fix a build issue affecting Nim 0.20.2

---
 faststreams/input_stream.nim | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/faststreams/input_stream.nim b/faststreams/input_stream.nim
index 20c292a..7894576 100644
--- a/faststreams/input_stream.nim
+++ b/faststreams/input_stream.nim
@@ -6,7 +6,7 @@ const
   debugHelpers = false
 
 type
-  StreamReader = proc (bufferStart: ptr byte, bufferSize: int): int
+  StreamReader = proc (bufferStart: ptr byte, bufferSize: int): int {.gcsafe.}
   # TODO: use openarray once it's supported
   AsyncStreamReader = StreamReader # proc (bufferStart: ptr byte, bufferSize: int): Future[int]
   CloseStreamProc = proc ()