[Rd] expm1, R-2.2.0 and Windows

[Göran Broström]

A user of 'eha' told me that it failed to load in R-2.2.0 on Windows,
and ideed, I checked and it fails with the error message "The
procedure entry point expm1 could not be located in the dynamic link
libary R.dll". I'm using expm1 (from the C math library on Linux, I
would guess) in a couple of C functions.

This didn't happen with R-2.1.1 (and it doesn't happen with R-2.2.0 on
debian), so I need advise about what to do. File a bug report?

--
Göran Broström