Case closed. My error was that I had not included an "export" option to
the linker and the symbols were not being exported (I was out of practice
building Window's dlls). The nm command output didn't help me. Thanks to
Tomas Kalibera and Jeroen Ooms for some helpful correspondence.
On Tue, Dec 3
I'm having problems getting code that runs under 3.6.1 on MacOSX (and
Ubuntu)
to run the R version 4.0.0 on Windows. I have not tested R 4.0.0 on mac
(yet).
Key question: Has anything changed in R 4.0.0/Windows regarding how
dynamically loaded
libraries are accessed? Can someone please point me i