Thanks to both of you! /Henrik On 8/15/07, Duncan Murdoch <[EMAIL PROTECTED]> wrote: > On 8/14/2007 2:52 AM, Prof Brian Ripley wrote: > > The MinGW people have finally released a couple of builds of gcc 4.2.1 > > (and finally moved the build of 3.4.5 to release status after 19 months as > > 'candidate'). > > > > We intend to use gcc 4.2.1 for the binary distribution of R 2.6.0, and > > builds of R-devel are being made with it from now on. The R-admin manual > > now contains details of the pieces you need, and in due course there will > > be an updated Rtools.exe containing this version. I've successfully built > > cross-compilers although am unlikely to distribute one for a while. > > Rtools.exe has now been updated on www.murdoch-sutherland.com/Rtools. > Please let me know of any problems. > > It currently includes both gcc 4.2.1 and 3.4.5; I expect to drop 3.4.5 > sometime after the release of R 2.6.0. It also includes Vanilla Perl, > so finally Rtools.exe is all you need to build packages on Windows. > (You probably want to get the Microsoft help compiler and some LaTeX, > but these are not strictly necessary.) > > Duncan Murdoch > > > > > gcc 4.2.1 is a better check of standards conformance, and you may see > > warnings in packages not present with gcc 3.4.5. All the CRAN packages > > have been checked, and this showed up some issues with packages which > > deviated markedly from the documented procedures. E.g. > > > > - the C++ compiler is $(CXX), not g++, and $(CXX) is defined in MkRules. > > > > - there is a quirk with dlltool both on Vista and with gcc 4.2.1 on XP > > that needs '--as' included amongst the flags. The rule in MkRules > > works: several user-written rules do not. > > > > So far we have seen no issues with mixing code compiled with gcc 3.4.5 and > > 4.2.1. There would almost certainly be issues with third-party C++ > > libraries, and might be some with Fortran libraries that use complex > > numbers. > > > > The advantages of using this port include: > > > > - Vista compatibility out of the box. > > > > - ongoing support. The main MinGW developer is really targetting gcc > > 4.3.0, and these compilers are interim releases with patches backported > > from the gcc trunk. > > > > - More complete C99 features: for example C99 inlining will be supported > > in gcc 4.3.0 (and has already been tested using snapshots). > > > > - integrated F9x support. F9x is supported 'out of the box', and can now > > consider using F9x code in R. > > > > - OMP and threading support. > > > > > > R 2.5.1 will not build out of the box with these compilers, but R-patched > > will (for suitable settings in MkRules). > > > > ______________________________________________ > R-devel@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-devel >
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