1 files changed, 3 insertions, 2 deletions
diff --git a/extern/ceres/internal/ceres/trust_region_minimizer.h b/extern/ceres/internal/ceres/trust_region_minimizer.h
index b5c41225ddc..be4d40653c4 100644
--- a/extern/ceres/internal/ceres/trust_region_minimizer.h
+++ b/extern/ceres/internal/ceres/trust_region_minimizer.h
@@ -32,7 +32,9 @@
 #define CERES_INTERNAL_TRUST_REGION_MINIMIZER_H_
 
 #include <memory>
+
 #include "ceres/internal/eigen.h"
+#include "ceres/internal/port.h"
 #include "ceres/minimizer.h"
 #include "ceres/solver.h"
 #include "ceres/sparse_matrix.h"
@@ -46,7 +48,7 @@ namespace internal {
 // Generic trust region minimization algorithm.
 //
 // For example usage, see SolverImpl::Minimize.
-class TrustRegionMinimizer : public Minimizer {
+class CERES_EXPORT_INTERNAL TrustRegionMinimizer : public Minimizer {
  public:
   ~TrustRegionMinimizer();
 
@@ -80,7 +82,6 @@ class TrustRegionMinimizer : public Minimizer {
   bool MinTrustRegionRadiusReached();
 
   bool IsStepSuccessful();
-  void HandleUnsuccessfulStep();
   bool HandleSuccessfulStep();
   bool HandleInvalidStep();