[jira] [Created] (ARROW-11643) [C++] protobuf_ep failure on Xcode 8.3.3 / Apple LLVM 8.1

["Wes McKinney (Jira)" <ji...@apache.org>]

Wes McKinney created ARROW-11643:
------------------------------------

             Summary: [C++] protobuf_ep failure on Xcode 8.3.3 / Apple LLVM 8.1
                 Key: ARROW-11643
                 URL: https://issues.apache.org/jira/browse/ARROW-11643
             Project: Apache Arrow
          Issue Type: Bug
          Components: C++
            Reporter: Wes McKinney


I randomly decided to see if we can still build and run on a pre-SSE4.2 machine (2009-era MacBook), but protobuf_ep fails with

{code}
FAILED: CMakeFiles/libprotobuf.dir/Users/wesm/code/arrow/cpp/build/protobuf_ep-prefix/src/protobuf_ep/src/google/protobuf/dynamic_message.cc.o 
/Applications/Xcode8.3.3.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/c++  -DGOOGLE_PROTOBUF_CMAKE_BUILD -DHAVE_PTHREAD -DHAVE_ZLIB -I. -I/Users/wesm/code/arrow/cpp/build/protobuf_ep-prefix/src/protobuf_ep/src -Qunused-arguments -fcolor-diagnostics -O3 -DNDEBUG -O3 -DNDEBUG -fPIC  -Qunused-arguments -fcolor-diagnostics -O3 -DNDEBUG -O3 -DNDEBUG -fPIC   -std=c++11 -MD -MT CMakeFiles/libprotobuf.dir/Users/wesm/code/arrow/cpp/build/protobuf_ep-prefix/src/protobuf_ep/src/google/protobuf/dynamic_message.cc.o -MF CMakeFiles/libprotobuf.dir/Users/wesm/code/arrow/cpp/build/protobuf_ep-prefix/src/protobuf_ep/src/google/protobuf/dynamic_message.cc.o.d -o CMakeFiles/libprotobuf.dir/Users/wesm/code/arrow/cpp/build/protobuf_ep-prefix/src/protobuf_ep/src/google/protobuf/dynamic_message.cc.o -c /Users/wesm/code/arrow/cpp/build/protobuf_ep-prefix/src/protobuf_ep/src/google/protobuf/dynamic_message.cc
In file included from /Users/wesm/code/arrow/cpp/build/protobuf_ep-prefix/src/protobuf_ep/src/google/protobuf/dynamic_message.cc:80:
/Users/wesm/code/arrow/cpp/build/protobuf_ep-prefix/src/protobuf_ep/src/google/protobuf/map_field.h:332:37: error: constexpr constructor never produces a constant expression [-Winvalid-constexpr]
  explicit PROTOBUF_MAYBE_CONSTEXPR MapFieldBase(ConstantInitialized)
                                    ^
/Users/wesm/code/arrow/cpp/build/protobuf_ep-prefix/src/protobuf_ep/src/google/protobuf/map_field.h:335:9: note: non-literal type 'internal::WrappedMutex' cannot be used in a constant expression
        mutex_(GOOGLE_PROTOBUF_LINKER_INITIALIZED),
        ^
1 error generated.
{code}

Since this appears to be a warning, perhaps it can be suppressed



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