If you are building R (especially R-devel) for Windows, you will need to update your tools. First, we now require binutils-2.16.91-20050827 (and even 2.2.1 effectively did). There is a patched ld.exe for that available from the Rtools site, which should be used if you intend to distribute compiled packages. (It overcomes a bug only seen on NT4: the patched version is being used for the pre-compiled packages Uwe Ligges makes.) Second, the recommended gcc 3.4.4 compilers have been replaced by 3.4.5 ones. As the 3.4.4 builds are not longer available, we recommend you do use the currently available 3.4.5. Third, I have updated my cross-compiler suite to binutils-2.16.91-20050827 (with the patched ld.exe), mingw-runtime-3.9 and w32api-3.5, and the updated suite is required to build R-devel or R-patched. After a considerable struggle I have managed to cross-build all of gcc-3.4.5, so full C++ support is available again. -- Brian D. Ripley, ripley at stats.ox.ac.uk Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/ University of Oxford, Tel: +44 1865 272861 (self) 1 South Parks Road, +44 1865 272866 (PA) Oxford OX1 3TG, UK Fax: +44 1865 272595