1 files changed, 6 insertions, 3 deletions
diff --git a/extern/ceres/internal/ceres/sparse_normal_cholesky_solver.h b/extern/ceres/internal/ceres/sparse_normal_cholesky_solver.h
index ef3274323f5..caec566612e 100644
--- a/extern/ceres/internal/ceres/sparse_normal_cholesky_solver.h
+++ b/extern/ceres/internal/ceres/sparse_normal_cholesky_solver.h
@@ -36,11 +36,13 @@
 
 // This include must come before any #ifndef check on Ceres compile options.
 // clang-format off
-#include "ceres/internal/port.h"
+#include "ceres/internal/config.h"
 // clang-format on
 
+#include <memory>
 #include <vector>
 
+#include "ceres/internal/export.h"
 #include "ceres/linear_solver.h"
 
 namespace ceres {
@@ -52,13 +54,14 @@ class SparseCholesky;
 
 // Solves the normal equations (A'A + D'D) x = A'b, using the sparse
 // linear algebra library of the user's choice.
-class SparseNormalCholeskySolver : public BlockSparseMatrixSolver {
+class CERES_NO_EXPORT SparseNormalCholeskySolver
+    : public BlockSparseMatrixSolver {
  public:
   explicit SparseNormalCholeskySolver(const LinearSolver::Options& options);
   SparseNormalCholeskySolver(const SparseNormalCholeskySolver&) = delete;
   void operator=(const SparseNormalCholeskySolver&) = delete;
 
-  virtual ~SparseNormalCholeskySolver();
+  ~SparseNormalCholeskySolver() override;
 
  private:
   LinearSolver::Summary SolveImpl(BlockSparseMatrix* A,