On Wed, Mar 9, 2011 at 9:14 AM, Dahir Alihassan <[email protected]> wrote: > 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
Except for forward_exception_to_r those symbols are part of the R API. Can you provide the output from the compilation of the package? The last line of the compilation should look like g++ -shared -o minqa.so altmov.o bigden.o biglag.o bobyqa.o bobyqb.o lagmax.o minqa.o newuoa.o newuob.o prelim.o rescue.o trsapp.o trsbox.o trstep.o uobyqa.o uobyqb.o update.o updatebobyqa.o -L/home/bates/R/x86_64-pc-linux-gnu-library/2.12/Rcpp/lib -lRcpp -Wl,-rpath,/home/bates/R/x86_64-pc-linux-gnu-library/2.12/Rcpp/lib -lgfortran -lm -L/usr/lib64/R/lib -lR and the important part is the -lR at the end. That is where those symbols (except for forward_exception_to_r) are defined. > 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! > > > > _______________________________________________ > Rcpp-devel mailing list > [email protected] > https://lists.r-forge.r-project.org/cgi-bin/mailman/listinfo/rcpp-devel > _______________________________________________ Rcpp-devel mailing list [email protected] https://lists.r-forge.r-project.org/cgi-bin/mailman/listinfo/rcpp-devel
