The tutorial "Configuring C++ toolchains" uses deprecated mechanisms

[ahyangyi]

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Description of the problem / feature request:

The tutorial "Configuring C++ toolchains" uses deprecated mechanisms

Bugs: what's the simplest, easiest way to reproduce this bug? Please provide a minimal example if possible.

Follow the tutorial at https://docs.bazel.build/versions/master/tutorial/cc-toolchain-config.html
Get the following error message:

in cc_toolchain rule //asmjs_toolchain: attributes 'cpu' and 'compiler' have been deprecated, please remove them. See https://github.com/bazelbuild/bazel/issues/7075 for details.

What operating system are you running Bazel on?

Gentoo Linux

What's the output of bazel info release?

release 0.28.1- (@Non-Git)

If bazel info release returns "development version" or "(@Non-Git)", tell us how you built Bazel.

Built with portage (this shouldn't matter though)

Have you found anything relevant by searching the web?

Yeah, the error message itself points to #7075

[ahyangyi]

Well, actually removing the cpu = ... line in cc_toolchain (but not the target_cpu = ... line in cc_toolchain_config.bzl) fixes the issue.

Anyway, this is a bug report for the documentation.

[UlrichEckhardt]

I don't see the issue in the documentation or maybe I just don't understand where you mean it's faulty. Can you give the actual filename and code? Or, maybe it was fixed and this can be closed.