From 2d7abe071076234a34599a7b89107f7252227a79 Mon Sep 17 00:00:00 2001
From: Alex Cunningham <alexgcunningham@gmail.com>
Date: Thu, 8 Aug 2013 16:51:04 +0000
Subject: [PATCH] Added explicit templated base class instantiation within
 NonlinearFactorGraph

---
 gtsam/nonlinear/NonlinearFactorGraph.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/gtsam/nonlinear/NonlinearFactorGraph.cpp b/gtsam/nonlinear/NonlinearFactorGraph.cpp
index 6441c2eba..555e7a22d 100644
--- a/gtsam/nonlinear/NonlinearFactorGraph.cpp
+++ b/gtsam/nonlinear/NonlinearFactorGraph.cpp
@@ -32,6 +32,9 @@ using namespace std;
 
 namespace gtsam {
 
+// Instantiate base classes
+template class FactorGraph<NonlinearFactor>;
+
 /* ************************************************************************* */
 double NonlinearFactorGraph::probPrime(const Values& c) const {
   return exp(-0.5 * error(c));