Fix compile error for MG_LEGACY_INTERFACES
Fix compile error for MG_LEGACY_INTERFACES

This interface is untested for years and going to be removed soon

GerHobbelt/civet-webserver,GerHobbelt/civet-webserver,GerHobbelt/civet-webserver,GerHobbelt/civet-webserver,GerHobbelt/civet-webserver,GerHobbelt/civet-webserver