tree e61b4d93693f1ee74771aa598078b7b2a2ec47f3
parent 8107cd123f9a71d7ad92d7926dd4eb11f42d0e2b
author Wyatt Hepler <hepler@google.com> 1603987957 -0700
committer CQ Bot Account <pigweed-scoped@luci-project-accounts.iam.gserviceaccount.com> 1604607224 +0000

CMake: Support protobuf code gen; add pw_rpc

- Add proto.cmake and the pw_proto_library function. Like the GN
  version, this generates code for .proto files.
- Provide CMakeLists.txt for pw_protobuf, pw_rpc, and pw_hdlc_lite.
- Add a Nanopb wrapper CMakeLists.txt with a cache variable for Nanopb,
  similar to the variable for GN.

Change-Id: I15d09af8aa3575a86fc360787b117988a75f569e
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/22841
Reviewed-by: Zoltan Szatmary-Ban <szatmz@google.com>
Reviewed-by: Alexei Frolov <frolv@google.com>
Reviewed-by: Keir Mierle <keir@google.com>
Commit-Queue: Wyatt Hepler <hepler@google.com>