Wes McKinney created ARROW-11643:
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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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