New Rtools sent to CRAN

Hi Dan,

Currently the r-devel builds from CRAN still use the old tool chain. A
copy of r-devel which has been configured with the new tool chain is
available from http://www.stat.ucla.edu/~jeroen/mingw-w64/R-experimental-r69418.exe

This build has BINPREF (the path to the compiler) hardcoded to the
default location of the new tool chains. To change it you would need
to edit this variable in C:\Program
Files\R\R-experimental\etc\x64\Makeconf and C:\Program
Files\R\R-experimental\etc\i386\Makeconf.

We are currently discussing how to design it such that you can set the
path to the compiler using an environment variable.

I ran the Bioconductor builds overnight using this toolchain and recent R-devel and did not notice anything odd with packages containing native code, which means either the new toolchain is working perfectly (which is wonderful) or gcc-4.6.3 is still being used and maybe I need to do something to faciliate the use of gcc-4.9.3. Can you advise?

We're talking to CRAN on how to coordinate the migration to the new
tool chain. If you have bioc packages that link to external c++
libraries, those need a rebuild. The most current information is
available from: https://github.com/rwinlib/r-base#readme