search for: check_flavors

Is the mechanism by which packages are tested on CRAN described anywhere? Is it by any chance written in R? The FastR <https://bitbucket.org/allr/fastr/wiki/Home> team is interested in running a virtual CRAN where we can test all the CRAN packages on FastR. Thanks Mick Jordan [[alternative HTML version deleted]]

There appears to have been some progress on this matter: -Note that @command{g++} 4.9.x (as used for @R{} on Windows up to 3.6.x) +Note that @command{g++} 4.9.x (as used on Windows prior to @R{} 4.0.0) See SVN commit r78169 titled 'anticipate change in Windows toolchain', or the mirrored git commit at https://github.com/wch/r-source/commit/bd674e2b76b2384169424e3d899fbfb5ac174978 Dirk

...r and possibly others are keeping an eye on this thread so it would be good to post a note here too. As of version 4.0.0, the official R for Windows and binary packages provided via CRAN are built with gcc-8.3.0 from rtools40, as shown in the CRAN check table: https://cran.r-project.org/web/checks/check_flavors.html Instructions and installers for rtools40 are available at the usual location: https://cran.r-project.org/bin/windows/Rtools/ . Suggestions for improving the documentation can be posted here: https://github.com/r-windows/docs On Tue, Apr 7, 2020 at 6:07 PM Kevin Ushey <kevinushey at...