From 36f53f7226efc964966a0120c3fe9deda3e7d2bc Mon Sep 17 00:00:00 2001
From: Chris Beall <cbeall3@gatech.edu>
Date: Thu, 17 Apr 2014 23:53:41 -0400
Subject: [PATCH] Fix errors on Windows with VS 2010

---
 gtsam/inference/VariableSlots.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/gtsam/inference/VariableSlots.h b/gtsam/inference/VariableSlots.h
index d393b61b1..9a16ca788 100644
--- a/gtsam/inference/VariableSlots.h
+++ b/gtsam/inference/VariableSlots.h
@@ -55,7 +55,7 @@ class VariableSlots : public FastMap<Key, FastVector<size_t> > {
 public:
 
   typedef FastMap<Key, FastVector<size_t> > Base;
-  static const size_t Empty;
+  GTSAM_EXPORT static const size_t Empty;
 
   /// @name Standard Constructors
   /// @{