https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62224
--- Comment #8 from Markus Trippelsdorf <trippels at gcc dot gnu.org> --- I don't think this is a compiler bug. cppmodelmanager.o is simply missing in the object file list of the libCppEditor.so link command. And the undefined symbol from cppcodemodelinspectordialog.ii is also correct, because "void ensureUpdated()" is declared, but not defined in that file.