bug(build): Can not build on Windows w/ R 4.2 and R 4.1

[schloerke]

👋 terra Team! The Shiny Team has a few Apps that require {terra} for our nightly testing. While it isn't a blocker, it'd be nice to remove the false positives involving installation errors for {terra} and R 4.1 / 4.2.

We are testing using the same r-lib/actions to install the packages. I've updated the GHA script to test on all Windows versions to reprex the behavior within this PR. (Marking PR as "draft" as it isn't intended to be merged)

Request: If I could get an incantation (or code changes) for {terra} to install, I would be most grateful!

Thank you!

cc @karangattu

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I believe if terra is able to be installed, then windows binaries will also be created for R 4.1 / 4.2... which also benefits older R windows users.

PPM+terra: (Must change the OS and R version manually near bottom of page)

[rhijmans]

Happy to help if I can, but I do not understand what false positives you are talking about, nor do I understand what you would like me to do.

[brownag]

Happy to help if I can, but I do not understand what false positives you are talking about, nor do I understand what you would like me to do.

I think @schloerke wants you to approve the workflows to run so the error that is apparently preventing build will show up in CI.

Since it is Windows, I am wondering if there is an issue with libs provided with the particular version of RTools being used by posit package manager for 4.1/4.2--perhaps something similar to this: #881

[schloerke]

Yes. If you can approve the workflows, you'll see the R4.1 and R4.2 fail to compile terra.

Goal: compile terra for GitHub Actions on Windows for R4.1/4.2.

[schloerke]

An example of a failing build: https://github.com/schloerke/terra/actions/runs/19341834550/job/55331943527#step:6:1