[MESOS-9094] On macOS libprocess_tests fail to link when compiling with gRPC

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.7.0

Environment

macOS 10.13.6 with clang 6.0.1.

• Sprint: Mesosphere Sprint 2018-25
• Story Points: 2
• Assignee: Jan Schlicht
• Reporter: Jan Schlicht
• Shepherd: Chun-Hung Hsiao
• Created: 19/Jul/18 07:31
• Updated: 25/Jul/18 21:22
• Resolved: 25/Jul/18 21:22

Description

Seems like this was introduces with commit a211b4cadf289168464fc50987255d883c226e89. Linking libprocess-tests on macOS with enabled gRPC fails with

Undefined symbols for architecture x86_64:
  "grpc::TimePoint<std::__1::chrono::time_point<std::__1::chrono::system_clock, std::__1::chrono::duration<long long, std::__1::ratio<1l, 1000000000l> > > >::you_need_a_specialization_of_TimePoint()", referenced from:
      process::Future<Try<tests::Pong, process::grpc::StatusError> > process::grpc::client::Runtime::call<std::__1::unique_ptr<grpc::ClientAsyncResponseReader<tests::Pong>, std::__1::default_delete<grpc::ClientAsyncResponseReader<tests::Pong> > > (tests::PingPong::Stub::*)(grpc::ClientContext*, tests::Ping const&, grpc::CompletionQueue*), tests::Ping, tests::Pong, 0>(process::grpc::client::Connection const&, std::__1::unique_ptr<grpc::ClientAsyncResponseReader<tests::Pong>, std::__1::default_delete<grpc::ClientAsyncResponseReader<tests::Pong> > > (tests::PingPong::Stub::*&&)(grpc::ClientContext*, tests::Ping const&, grpc::CompletionQueue*), tests::Ping&&, process::grpc::client::CallOptions const&)::'lambda'(tests::Ping const&, bool, grpc::CompletionQueue*)::operator()(tests::Ping const&, bool, grpc::CompletionQueue*) const in libprocess_tests-grpc_tests.o
ld: symbol(s) not found for architecture x86_64
clang-6.0: error: linker command failed with exit code 1 (use -v to see invocation)