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fix: pin host root_base to a C++23 ROOT build #18

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Merged
olantwin merged 1 commit into from
Jul 22, 2026
Merged

fix: pin host root_base to a C++23 ROOT build #18

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10 changes: 9 additions & 1 deletion pixi.toml
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Original file line number Diff line number Diff line change
Expand Up @@ -29,7 +29,15 @@ extra-args = [
]

[package.host-dependencies]
root_base = "*"
# Constrain to a C++23 ROOT build. pixi-build-cmake exact-pins the root_base
# build it resolves here into shipdatamodel's run-export, and its host solve
# does not honour the root_cxx_standard == "==23" below (it can pick a cxx20
# build). An unconstrained root_base therefore leaks a cxx20 run-export that
# conflicts with the C++23 stack (root_cxx_standard == "==23") in downstream
# dev environments (aegir). Pinning the build string keeps the run-export
# cxx23-compatible. Drop once pixi-build honours root_cxx_standard / uses
# root_base's run_exports range.
root_base = { version = "*", build = "cxx23_*" }
root_cxx_standard = "==23"

[dependencies]
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