On 9/8/21 2:08 PM, Hiroaki Yutani wrote:
Hi, Are there any proper ways to know whether the session is running on the R that is built with the UCRT toolchain or not? Checking if the encoding is UTF-8 might do the trick, but I'm not sure if it's always reliable.
There in not such a mechanism, yet, but can be added, at least for diagnostics.
You are right that checking for UTF-8 encoding would not always be reliable. For example, the version of Windows may be too old to allow R use UTF-8 as native encoding (e.g. Windows server 2016), then R will use the native code page as it does today in the MSVCRT builds.
Also, I'd like to know if there's any mechanism to detect the UCRT in configure.win. I know there are Makevars.ucrt and Makefile.ucrt, but one might want to do some feature test that is specific to the UCRT toolchain.
We could add support for configure.ucrt, which would take precedence over configure.win on the UCRT builds (like Makevars.ucrt takes precedence over Makevars.win). Would that work for you?
Best Tomas
Best, Hiroaki Yutani ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
