I have updated and moved the notes on the new toolchain. Their URL is https://rawgit.com/kevinushey/RToolsToolchainUpdate/master/mingwnotes.html
Thanks to Kevin for setting this up. Anyone who can solve the problems on that page, or who finds a new problem, please get in contact with us by email or on Github. Duncan Murdoch On 18/03/2015 9:27 AM, Duncan Murdoch wrote: > To anyone following the Windows toolchain saga: > > The gcc 4.9.2 toolchain that is currently in Rtools33 has too many > incompatibilities with existing code, so we won't be using it in the R > 3.2.0 build. I will soon be uploading to CRAN a new version of Rtools33 > that is very similar to Rtools32, containing gcc 4.6.3. > > We are continuing to work on the new toolchain, and hope to have it > ready before R 3.2.1 is released. > > The known problems are as follows: > > - C++ code should not call Rf_error(), as it uses longjmp, and the > behaviour of longjmp is undefined in C++ when destructors need to be > called. However, a number of packages do call Rf_error, and in gcc > 4.6.3, they get away with it. In our candidate 4.9.2 build, they > crashed. If we can't work around this, I'll suggest that we test for > the presence of Rf_error in C++ code, and start issuing warnings or > errors when it is seen. But before we do that, we need a solid replacement. > > - There are some other crashes that appear to be unrelated, also with > C++ code. > > - There are some subtle differences in arithmetic that result in tests > failing. These may be due to bugs in MinGW-w64 code, > or may be unavoidable. > > Duncan Murdoch > ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
