Looks similar to this old protobuf problem upstream: https://github.com/protocolbuffers/protobuf/issues/3937
- Bug#1103718: grpc_tools.protoc: undefined symbol: _ZN6... Chris Hofstaedtler
- Bug#1103718: grpc_tools.protoc: undefined symbol:... Petter Reinholdtsen
- Bug#1103718: grpc_tools.protoc: undefined sym... Chris Hofstaedtler
- Bug#1103718: Bug#1030311: grpc_tools.prot... Chris Hofstaedtler
- Bug#1030311: grpc_tools.protoc: undef... Petter Reinholdtsen
- Bug#1030311: grpc_tools.protoc: ... Petter Reinholdtsen