In libstageplugin/p_driver.h, the following functions are declared as part of the InterfaceModel class:
However, no definition exists for these calls in either p_driver.h or p_driver.cpp. This causes a build failure in newer Linux distributions.
If these methods are really meant to override the base class and do nothing, then they should be given an empty definition. Otherwise, the declarations should probably be removed.
I've removed the prototypes from the header. Thanks for the report.