On 12 July 2012 15:42, Arthur Schwarz wrote: > Thank you Johathan; > > Didn't think of that. A novel and productive idea. > > There is only one 'rub', I had a linker (alas, not a loader error as originally > stated) error which I reported and was told that it was difficult to change the > linker and would probably not be done. This was, to me, the somewhat obscure > "vtable undefined" message with an erroneous line reported where the error was > to have occurred. Reporting the error to bugzilla would not be effective, in > this case, because the error was well known and would not be fixed. An external > explanation seems to be the only recourse. That one's described at the link I gave you previously: http://gcc.gnu.org/wiki/VerboseDiagnostics#missing_vtable And all over the internet, searching for "undefined reference vtable" gives several htis that explain it. It's probably the most well-documented (by third parties) of all the errors you might get from GCC.
