1 files changed, 2 insertions, 2 deletions
diff --git a/extern/ceres/include/ceres/evaluation_callback.h b/extern/ceres/include/ceres/evaluation_callback.h
index b9f5bbb5194..495d565047a 100644
--- a/extern/ceres/include/ceres/evaluation_callback.h
+++ b/extern/ceres/include/ceres/evaluation_callback.h
@@ -31,7 +31,7 @@
 #ifndef CERES_PUBLIC_EVALUATION_CALLBACK_H_
 #define CERES_PUBLIC_EVALUATION_CALLBACK_H_
 
-#include "ceres/internal/port.h"
+#include "ceres/internal/export.h"
 
 namespace ceres {
 
@@ -62,7 +62,7 @@ namespace ceres {
 // execute faster.
 class CERES_EXPORT EvaluationCallback {
  public:
-  virtual ~EvaluationCallback() {}
+  virtual ~EvaluationCallback();
 
   // Called before Ceres requests residuals or jacobians for a given setting of
   // the parameters. User parameters (the double* values provided to the cost