examples/example_without_cc_toolchain/README.md - third_party/protobuf - Git at Google

 This example demonstrates what happens when a Bazel user doesn't have a proper
 CC toolchain installed. This case commonly happens in projects with no C++ code,
 so they don't have a hermetic method of building C++ code.
	This example demonstrates what happens when a Bazel user doesn't have a proper
	CC toolchain installed. This case commonly happens in projects with no C++ code,
	so they don't have a hermetic method of building C++ code.