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Add root_base 6.38.0 migration with C++ standard variants#8241

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chrisburr merged 1 commit intoconda-forge:mainfrom
chrisburr:root_base63800
Feb 17, 2026
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Add root_base 6.38.0 migration with C++ standard variants#8241
chrisburr merged 1 commit intoconda-forge:mainfrom
chrisburr:root_base63800

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@chrisburr
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Add root_cxx_std as a new variant dimension zipped with root_base to
support building ROOT packages against both C++20 and C++23. ROOT's
C++ standard affects ABI (dictionaries, .pcm files, allDict.cxx.pch),
so separate variants are needed.

The migration adds three combos: ROOT 6.36.8/C++20, ROOT 6.38.0/C++20,
and ROOT 6.38.0/C++23. Since zip_keys couples root_base and root_cxx_std,
downstream feedstocks that only depend on root_base get a deduplicated
matrix (no extra builds). Feedstocks that also depend on root_cxx_std
get the full three combos.
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Hi! This is the friendly automated conda-forge-linting service.

I just wanted to let you know that I linted all conda-recipes in your PR (recipe/meta.yaml) and found it was in an excellent condition.

I do have some suggestions for making it better though...

For recipe/meta.yaml:

  • ℹ️ The recipe is not parsable by parser conda-recipe-manager. The recipe can only be automatically migrated to the new v1 format if it is parseable by conda-recipe-manager.

This message was generated by GitHub Actions workflow run https://github.com/conda-forge/conda-forge-webservices/actions/runs/22030412371. Examine the logs at this URL for more detail.

@chrisburr chrisburr mentioned this pull request Feb 16, 2026
5 tasks
@chrisburr chrisburr marked this pull request as ready for review February 17, 2026 19:08
@chrisburr chrisburr requested a review from a team as a code owner February 17, 2026 19:08
@chrisburr chrisburr merged commit a8a28cd into conda-forge:main Feb 17, 2026
3 checks passed
@chrisburr chrisburr deleted the root_base63800 branch March 6, 2026 05:09
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2 participants