[R-pkg-devel] Is there an Rtools40 changelog?
j@y|@mb20 @end|ng |rom gm@||@com
Sun May 10 22:31:17 CEST 2020
I am a maintainer on the LightGBM project, focused on that project's R
package. The R package is not available on CRAN yet (we are working on it),
so for now our users must build it from source.
The package includes compilation of a C++ library, and we link to R.dll /
R.so to use R-provided functions like Rprintf.
With the release of R4.0 and Rtools40, we recently received reports from
our users that they are unable to build our package on Windows systems with
R 4.0 and Rtools 4.0 (https://github.com/microsoft/LightGBM/issues/3064).
After some investigation, I've learned that the following changes in
Rtools40 (relative to Rtools35) broke our installation process:
- *gendef.exe* was removed
- *mingw32-make.exe* was removed
- paths like "mingw_64/bin" were changed to "mingw64/bin"
I do not expect that our off-CRAN installation process is supported. I
understand that by maintaining our own process, we are taking on the burden
of keeping up with new releases of R and Rtools.
My question is this...is there public documentation about why the changes I
mentioned above were made? I have not found any mention of them in the
following places, and am not sure where else to look.
Thank you very much for your time and consideration,
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