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Use find_cpp_toolchain instead of accessing ctx.attr._cc_toolchain directly #1467

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aherrmann opened this issue Jan 4, 2021 · 0 comments · Fixed by #1468
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Use find_cpp_toolchain instead of accessing ctx.attr._cc_toolchain directly #1467

aherrmann opened this issue Jan 4, 2021 · 0 comments · Fixed by #1468

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@aherrmann
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With the --incompatible_enable_cc_toolchain_resolution flag enabled Bazel supports platform based toolchain selection for the cc toolchain. However, ctx.attr._cc_toolchain points to the toolchain that is configured via the old --crosstool_top flag, even if cc toolchain resolution is enabled. We need to use find_cpp_toolchain instead to access the correct toolchain in this case.

This is blocked by bazelbuild/bazel#6874
This is related to the hermetic nixpkgs provided cc toolchain tweag/rules_nixpkgs#128
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Use find_cpp_toolchain instead of ctx.attr._cc_toolchain directly tweag/rules_haskell
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@aherrmann