Hi Tim,
i had a look at the object files: the main.o calls _Z13tbroute_setupv, but the tbroute.o contains only a tbroute_setup ... well, i haven't learned assembler, yet...
is the tbroute class instantiated with FLEXT_NEW* (for a stand-alone external) or - correctly - with FLEXT_LIB* (for an external that is part of a library) ?
In flext this is relevant, unfortunately...
best, Thomas