From fb465a03b83fad2dceaea091ee3763c3dc6e83d2 Mon Sep 17 00:00:00 2001
From: Sergey Sharybin <sergey.vfx@gmail.com>
Date: Mon, 5 Aug 2013 22:35:14 -0700
Subject: [PATCH] Fix compilation error caused by missing suitesparse headers

Covariance implementation file used to unconditionally include
SuiteSparseQR.hpp which caused compilation error in cases you
don't have SuiteSuite installed to the system

Moved the include to #ifdef block.

Change-Id: I3a52c0f81711b2b70ae625fe80b758ecb0817cc6
---
 internal/ceres/covariance_impl.cc | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/internal/ceres/covariance_impl.cc b/internal/ceres/covariance_impl.cc
index 1befde738..ca5be4948 100644
--- a/internal/ceres/covariance_impl.cc
+++ b/internal/ceres/covariance_impl.cc
@@ -48,7 +48,10 @@
 #include "ceres/suitesparse.h"
 #include "ceres/wall_time.h"
 #include "glog/logging.h"
-#include "SuiteSparseQR.hpp"
+
+#ifndef CERES_NO_SUITESPARSE
+#  include "SuiteSparseQR.hpp"
+#endif
 
 namespace ceres {
 namespace internal {