Just in case anyone else is interested...
Chris D. sez:
> Module version unchanged at 1
> Undefined first referenced
> symbol in file
> PackedString_unpackCString_closure test.o
> ld: fatal: Symbol referencing errors. No output written to a.out
Doubtless this is an Unsound and Deprecated solution, but hey, it seems
to work: instead of importing PackedString, import PackBase, which is
apparently still a built-in. Certainly it's a different version of
the function, but presumably it does the same job.
Slainte,
Alex.
