[Rcpp-devel] Rcpp upgrading legacy code linking error

[Dahir Alihassan]

Hi,

I am posting here upon Dirk's suggestion, as I understand this is well
attended to and I'd be grateful for any help. I am taking over a project
which involves upgrading to the latest version of Rcpp and thus I have to
upgrade all the old style API calls (which is compatible with the Classic
version I believe). The compile works fine but the errors arise on linking
against the resulting \inst\libs\RLinkage.dll.

I have manged to convert a lot of the code (mainly using Rcpp::List to
extract and pack incoming and outgoing function parameters but also a bit
of exception handling) but I simply keep getting "undefined reference"
errors on linking. The build log after compiling says "Linking console
executable" and this is where it list undefined references in the
*.o:*.cpp files to:

1.Rprintf or Rf_error and forward_exception_to_r.
2.R_NilValue
3.Rf_install

I do have #include <Rcpp.h> (there was a series of errors that were
occuring because I had included iostream before Rcpp, which was
strange). I've tried looking at the RCPP PDF but can't seem to figure it
out. I also tried to ensure that R.dll is on my PATH (C:\Program
Files\R\R-2.12.1\bin\x64). I am using Code::Blocks 10.05 IDE with RTools
installed and Mingw64 referenced explicitly in the toolchain (and
correctly Autodetected as the compiler). I'd be extremelt grateful for any
heads up.
Thanks!