This page is for R 2.14.2 and later.

Multilib toolchain

This is part of Rtools215.exe and later available from here and separately as multi.zip (53MB)

Note that this is a multilib toolchain. All the tools are 32-bit Windows executables, so this toolchain can be run on 32- or 64-bit Windows. Generating 64-bit code is selected by a flag (for the compilers, -m64).

The toolchain contains separate 32- and 64-bit versions of gdb: either its bin32 or bin64 directory can put in your path or /path/to/binxx/gdb.exe used directly.

All the sources are in the multilib directory.

OpenMP and pthreads

pthreads-w32 is a more mature implementation, but based only on DLLs which you would need to ship with a package that makes use of it. Further, as those DLLs are licensed under LGPL, you need to meet their licence requirements (the sources are here).

winpthreads is from the `experimental' branch of the MinGW-w64 project. The two versions differ in using DLLs and static linking: there are some known problems (at least with the DLL version) for 64-bit builds with packages using C++.

The current toolchain packaging includes static winpthreads, which has proved to be the most satisfactory..

Tcl/Tk

The procedures and scripts used to compile the Tcl directory and in particular to produce the help file are at https://svn.r-project.org/R-packages/trunk/R-Tcl-win/. The sources used were tcl8.5.8-src.tar.gz, tk8.5.8-src.tar.gz, BWidget-1.8.0.tar.bz2 and Tktable2.9.tar.gz.