From 50d9db03c64f6641254c098ba359dfc11e352936 Mon Sep 17 00:00:00 2001
From: Billingsly Wetherfordshire <phowl.mouth@gmail.com>
Date: Mon, 20 Oct 2014 19:12:10 -0500
Subject: [PATCH] fix issue #1581

---
 compiler/vmgen.nim | 1 +
 1 file changed, 1 insertion(+)

diff --git a/compiler/vmgen.nim b/compiler/vmgen.nim
index fac3cf1bfd..e0e34306ce 100644
--- a/compiler/vmgen.nim
+++ b/compiler/vmgen.nim
@@ -1126,6 +1126,7 @@ proc checkCanEval(c: PCtx; n: PNode) =
   # we need to ensure that we don't evaluate 'x' here:
   # proc foo() = var x ...
   let s = n.sym
+  if {sfCompileTime, sfGlobal} <= s.flags: return
   if s.kind in {skVar, skTemp, skLet, skParam, skResult} and 
       not s.isOwnedBy(c.prc.sym) and s.owner != c.module:
     cannotEval(n)