Fix build error

m-kuhn · m-kuhn · commit b879d5303c0e · 2017-08-13T13:08:07.000+02:00
diff --git a/src/core/geometry/qgsgeometrymakevalid.cpp b/src/core/geometry/qgsgeometrymakevalid.cpp
@@ -28,6 +28,8 @@
 #include "qgsmultipolygon.h"
 #include "qgspolygon.h"
 
+#include <memory>
+
 
 // ------------ BuildArea stuff ---------------------------------------------------------------------
 
