From f80501846137cd276536b1e489f4caa8acdcbd5d Mon Sep 17 00:00:00 2001
From: Dominik Picheta <dominikpicheta@googlemail.com>
Date: Mon, 9 Jul 2018 23:33:31 +0100
Subject: Fixes #5880. (#7229)

---
 lib/pure/includes/oserr.nim | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'lib/pure/includes/oserr.nim')

diff --git a/lib/pure/includes/oserr.nim b/lib/pure/includes/oserr.nim
index bfb6118f2..eb350cbd4 100644
--- a/lib/pure/includes/oserr.nim
+++ b/lib/pure/includes/oserr.nim
@@ -66,7 +66,7 @@ proc raiseOSError*(errorCode: OSErrorCode; additionalInfo = "") {.noinline.} =
   raise e
 
 {.push stackTrace:off.}
-proc osLastError*(): OSErrorCode =
+proc osLastError*(): OSErrorCode {.sideEffect.} =
   ## Retrieves the last operating system error code.
   ##
   ## This procedure is useful in the event when an OS call fails. In that case
-- 
cgit 1.4.1-2-gfad0