FIX: fix build error

jira: none
Change-Id: I97df69b728fc3871b7c33e1fd3ba068e741d51c7
(cherry picked from commit 326d7d28b47017bdbd98873a6437ef84116291ba)

src/libslic3r/GCode/ToolOrdering.hpp

@@ -217,6 +217,7 @@ private:
     const DynamicPrintConfig*  m_print_full_config = nullptr;
     const PrintConfig*         m_print_config_ptr = nullptr;
     const PrintObject*         m_print_object_ptr = nullptr;
+    Print*                     m_print;
     bool                       m_is_BBL_printer = false;
 };