Move some error reporting from cc_toolchain to rules

This is unfortunate, confusing for the user, and less accurate than what the
original behavior was, but because cc_toolchain cannot access (currently, with
platforms enabled) the target configuration, there is nothing we can do other
than showing the error for the target.

https://github.com/bazelbuild/bazel/issues/6516

RELNOTES: None
PiperOrigin-RevId: 240345500
7 files changed
tree: 5a8c9851ace3eb6762d1676b2c9f929dcf273a5f
  1. .bazelci/
  2. examples/
  3. scripts/
  4. site/
  5. src/
  6. third_party/
  7. tools/
  8. .gitattributes
  9. .gitignore
  10. AUTHORS
  11. BUILD
  12. CHANGELOG.md
  13. CODEOWNERS
  14. combine_distfiles.py
  15. combine_distfiles_to_tar.sh
  16. compile.sh
  17. CONTRIBUTING.md
  18. CONTRIBUTORS
  19. distdir.bzl
  20. ISSUE_TEMPLATE.md
  21. LICENSE
  22. README.md
  23. WORKSPACE
README.md

Bazel

{Fast, Correct} - Choose two

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Documentation

Contributing to Bazel

See CONTRIBUTING.md

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Bazel is released in ‘Beta’. See the product roadmap to learn about the path toward a stable 1.0 release.