tree b22bdca9edc0539197002aca354872d6cd8d08a1
parent 40548a2974f1aea06215272d9c2b47a14a24e556
author Greg Estren <gregestren@gmail.com> 1613076824 -0500
committer Greg Estren <gregestren@gmail.com> 1613076824 -0500

Add custom C++ toolchain example.

Inspired by https://github.com/bazelbuild/bazel/issues/12942.