You might be better off using the same g++ as distributed and found on Prof Ripley's web site, rather than the newer 4.x:
$ /home/hin-tak/mingw-cross/bin/i586-mingw32-c++ --version i586-mingw32-c++ (GCC) 3.4.5 (mingw special) ... Name-mangling and C++ ABI had changed between gcc 3.x and 4.x, so compiling c++ programs might be different. It had worked out-of-the-box for me when I was using fedora 5 x86_64 (I just upgraded to fedora 6 yesterday, and I haven't tried doing any cross-compiling yet). So fc4 probably should work. HTH, Hin-Tak Leung Tom McCallum wrote: > Thanks for your reply, as an example it appears to have difficulty linking > to even ostream library of the standard C++, as shown below: > > /home/tmccallum/ritzel/RItzel/src/Classifier.cpp:209: undefined reference > to `_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc' > Classifier.o: In function `operator<<': > /usr/lib/gcc/i386-redhat-linux/4.0.2/../../../../include/c++/4.0.2/ostream:218: > > undefined reference to `_ZNSolsEd' > /usr/lib/gcc/i386-redhat-linux/4.0.2/../../../../include/c++/4.0.2/ostream:196: > > undefined reference to `_ZNSolsEl' > > I am currently working R-2.4.0 as downloaded today. > > I know the g++ has gone through some alterations and wondered if you knew > the version of g++ you cross-compiled your package with for comparison - > mine is g++ (GCC) 4.0.2 20051125 (Red Hat 4.0.2-8). > > Many thanks > > Tom > > > On Wed, 25 Oct 2006 18:10:40 +0100, Ramon Diaz-Uriarte <[EMAIL PROTECTED]> > wrote: > >> Dear Tom, >> >> It has worked for me out-of-the box in at least two times, one a while >> ago >> with R-2.2-something and recently with R-2.4.0. In both cases, I was >> running >> Debian (with a mix of testing and unstable) on x86. I never had to do >> anything, just run the script and at least in one case I did >> crosscompile a >> package with C++. >> >> >> R. >> >> On Wednesday 25 October 2006 18:03, Tom McCallum wrote: >>> Hi everyone, >>> >>> I am trying to cross-compile a package I wrote using the Yan and Rossini >>> tutorial "Building Microsoft Windows versions of R and R packages using >>> Intel Linux". I have got reasonably far with this but when doing the >>> linking using the line: >>> >>> i586-mingw32-g++ -shared -s -o mylibrary.dll mylibrary.def mylibrary.o >>> mylibrary_res.o -L/my/path/RCrossBuild/WinR/R-2.4.0/bin -lR >>> >>> I get lots of these type of messages: >>> /my/path/to/mylibrary.cpp:43: undefined reference to >>> `_GLOBAL_OFFSET_TABLE_' >>> >>> and other similar linker errors for virtually every object and command >>> in >>> the program. After some googling I have found that there may be >>> problems >>> with the libgcc.a library and its default -fPIC argument during >>> compilation. >>> >>> Has anyone got this tutorial to work and if so how did they overcome >>> this? >>> >>> I am attempting to do this on Fedora Core 4 on a 32-bit machine, having >>> completed all the previous sections of the tutorial for building a >>> cross-platform version of R. >>> >>> Many thanks >>> >>> Tom > > > ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
