diff --git a/base/timing.h b/base/timing.h
index 77a19ce86..52dcec6b9 100644
--- a/base/timing.h
+++ b/base/timing.h
@@ -6,6 +6,7 @@
  */
 #pragma once
 
+#include <stdio.h>
 #include <string>
 
 // simple class for accumulating execution timing information by name
diff --git a/inference/Factor.cpp b/inference/Factor.cpp
index fdea99678..a646f8130 100644
--- a/inference/Factor.cpp
+++ b/inference/Factor.cpp
@@ -47,7 +47,7 @@ Conditional::shared_ptr Factor::eliminateFirst() {
 boost::shared_ptr<BayesNet<Conditional> > Factor::eliminate(varid_t nFrontals) {
   assert(keys_.size() >= nFrontals);
   checkSorted();
-  typename BayesNet<Conditional>::shared_ptr fragment(new BayesNet<Conditional>());
+  BayesNet<Conditional>::shared_ptr fragment(new BayesNet<Conditional>());
   const_iterator nextFrontal = this->begin();
   for(varid_t n = 0; n < nFrontals; ++n, ++nextFrontal)
     fragment->push_back(Conditional::shared_ptr(new Conditional(nextFrontal, const_iterator(this->end()), 1)));
diff --git a/inference/inference.cpp b/inference/inference.cpp
index f853cce38..2b3cb7ec4 100644
--- a/inference/inference.cpp
+++ b/inference/inference.cpp
@@ -18,8 +18,8 @@ Inference::EliminateOneSymbolic(FactorGraph<Factor>& factorGraph, VariableIndex<
   tic("EliminateOne");
 
   // Get the factors involving the eliminated variable
-  typename VariableIndex<>::mapped_type& varIndexEntry(variableIndex[var]);
-  typedef typename VariableIndex<>::mapped_factor_type mapped_factor_type;
+  VariableIndex<>::mapped_type& varIndexEntry(variableIndex[var]);
+  typedef VariableIndex<>::mapped_factor_type mapped_factor_type;
 
   if(!varIndexEntry.empty()) {
 
diff --git a/linear/GaussianJunctionTree.cpp b/linear/GaussianJunctionTree.cpp
index 85f91fb9b..e1568acf2 100644
--- a/linear/GaussianJunctionTree.cpp
+++ b/linear/GaussianJunctionTree.cpp
@@ -1,4 +1,4 @@
-/*
+/**
  * GaussianJunctionTree.cpp
  * Created on: Jul 12, 2010
  * @author Kai Ni
@@ -34,7 +34,7 @@ namespace gtsam {
 		}
 
 		// solve the bayes nets in the child nodes
-		BOOST_FOREACH(const typename BayesTree::sharedClique& child, current->children()) {
+		BOOST_FOREACH(const BayesTree::sharedClique& child, current->children()) {
 			btreeBackSubstitue(child, config);
 		}
 	}