How to use a specific version of protoc ?

[jao...@gmail.com]

Hi all,

I'd like to use a specific version of protoc (3.9.1) when building a library that depends on grpc

In the WORKSPACE I have the following lines to load grpc dependencies:

  load("@com_github_grpc_grpc//bazel:grpc_deps.bzl", "grpc_deps")

  grpc_deps()

  load("@com_github_grpc_grpc//bazel:grpc_extra_deps.bzl", "grpc_extra_deps")

  grpc_extra_deps()

If I use recent grpc source (1.27+), it uses a version of protobuf that I can't set automatically.

Is it possible to use a specific version of protoc in this case ?

[Richard Belleville]

You should be able to specify your preferred version of the protobuf repo in your WORKSPACE file. As you can see, we only provide a default revision of the protobuf repo when none is specified by the workspace pulling us in. However, we only test against this version in CI, so it's possible that you'll have to manually work through build issues when you supply your desired version.