Bazel build fails on macOS

[ek9852]

CC=clang CXX=clang++ bazel build -s --check_visibility=false //connections:core --spawn_strategy=standalone --verbose_failures

In file included from ./internal/platform/base_inputstream.h:19: ./internal/platform/exception.h:108:23: error: no matching constructor for initialization of 'location::nearby::Exception' Exception exception{Exception::kFailed}; ^~~~~~~~ ./internal/platform/exception.h:25:8: note: candidate constructor (the implicit copy constructor) not viable: no known conversion from 'location::nearby::Exception::Value' to 'const location::nearby::Exception' for 1st argument struct Exception { ^ ./internal/platform/exception.h:25:8: note: candidate constructor (the implicit move constructor) not viable: no known conversion from 'location::nearby::Exception::Value' to 'location::nearby::Exception' for 1st argument struct Exception { ^ ./internal/platform/exception.h:25:8: note: candidate constructor (the implicit default constructor) not viable: requires 0 arguments, but 1 was provided ./internal/platform/exception.h:90:20: error: no matching constructor for initialization of 'location::nearby::Exception' exception_ = Exception{Exception::kSuccess}; ^ ~~~~~ ./internal/platform/exception.h:25:8: note: candidate constructor (the implicit copy constructor) not viable: no known conversion from 'location::nearby::Exception::Value' to 'const location::nearby::Exception' for 1st argument struct Exception { ^ ./internal/platform/exception.h:25:8: note: candidate constructor (the implicit move constructor) not viable: no known conversion from 'location::nearby::Exception::Value' to 'location::nearby::Exception' for 1st argument struct Exception { ^ ./internal/platform/exception.h:25:8: note: candidate constructor (the implicit default constructor) not viable: requires 0 arguments, but 1 was provided In file included from internal/platform/byte_utils.cc:20: ./internal/platform/base_input_stream.h:38:12: error: no matching conversion for functional-style cast from 'size_t' (aka 'unsigned long') to 'ExceptionOr' (aka 'ExceptionOr') return ExceptionOr(real_offset); ^~~~~~~ ./internal/platform/exception.h:72:7: note: candidate constructor (the implicit copy constructor) not viable: no known conversion from 'size_t' (aka 'unsigned long') to 'const location::nearby::ExceptionOr' for 1st argument class ExceptionOr { ^ ./internal/platform/exception.h:72:7: note: candidate constructor (the implicit move constructor) not viable: no known conversion from 'size_t' (aka 'unsigned long') to 'location::nearby::ExceptionOr' for 1st argument ./internal/platform/exception.h:85:12: note: candidate template ignored: could not match 'ExceptionOr' against 'unsigned long' explicit ExceptionOr(ExceptionOr value) { ^ ./internal/platform/exception.h:74:3: note: candidate constructor not viable: requires 0 arguments, but 1 was provided ExceptionOr() = default; ^ In file included from internal/platform/byte_utils.cc:20: ./internal/platform/base_input_stream.h:43:12: error: no matching constructor for initialization of 'location::nearby::Exception' return {Exception::kSuccess}; ^~~~~ ./internal/platform/exception.h:25:8: note: candidate constructor (the implicit copy constructor) not viable: no known conversion from 'location::nearby::Exception::Value' to 'const location::nearby::Exception' for 1st argument struct Exception { ^ ./internal/platform/exception.h:25:8: note: candidate constructor (the implicit move constructor) not viable: no known conversion from 'location::nearby::Exception::Value' to 'location::nearby::Exception' for 1st argument ./internal/platform/exception.h:25:8: note: candidate constructor (the implicit default constructor) not viable: requires 0 arguments, but 1 was provided 4 errors generated.

[bourdakos1]

We don’t have support for building with Bazel on macOS at the moment. However, we do support macOS through Swift Package Manager.