ViSQOL uses protobuf-internal headers

[gjasny]

Hello,

while building ViSQOL with CMake against a CMake-built protobuf I noticed that ViSQOL uses protobuf-internal headers like src/google/protobuf/stubs/statusor.h which won't be available in a CMake-protobuf installation.

I opened an issue in protocolbuffers/protobuf#7358 and asked to align both: the CMake and Bazel buildsystem in terms of installed or available headers. Based on the outcome you might lose access to StatusOr.

Are you aware of any replacement for StatusOr (e.g. in abseil-cpp)?

Thanks,
Gregor

[mchinen]

Hi, I'm not aware of a replacement for StatusOr, and I have seen several projects using protobuf/stubs/statusor.h; I think the issue you opened up in the protobuf repo should be enlightening. For your situation it seems the hacky workaround will be to manually copy the headers or use a search path.