In fact, there is no such file of src/platform/OpenThread/BUILD.gn. Maybe we can add the source set later but not in this PR.

[dhrishi]

          In fact, there is no such file of `src/platform/OpenThread/BUILD.gn`. Maybe we can add the source set later but not in this PR.

Originally posted by @wqx6 in #33872 (comment)

[dhrishi]

@wqx6 PTAL

[wqx6]

I cannot add a source_set for OpenThreadBorderRouter delegate in src/platform/OpenThread/BUILD.gn. The sources use the headers such as platform/ThreadStackManager.h which are in the static_library ${chip_root}/src/platform:platform. If we make the thread_br source_set depend on the static_library ${chip_root}/src/platform:platform. There will be a dependency cycle error. I guess that is the reason why we didn't create BUILD.gn file in src/platform/OpenThread before.

ERROR Dependency cycle:
  //third_party/connectedhomeip/src/platform:platform ->
  //third_party/connectedhomeip/src/platform/ESP32:ESP32 ->
  //third_party/connectedhomeip/src/platform/OpenThread:border-router-delegate ->
  //third_party/connectedhomeip/src/platform:platform