Opened 14 months ago
#68444 assigned defect
protobuf3-cpp: build error in dependents: unknown type name 'max_align_t'
Reported by: | jmroot (Joshua Root) | Owned by: | mascguy (Christopher Nielsen) |
---|---|---|---|
Priority: | Normal | Milestone: | |
Component: | ports | Version: | |
Keywords: | Cc: | ||
Port: | protobuf3-cpp |
Description
Dependents can fail to build when using some toolchain versions, see for example py311-onnx: https://build.macports.org/builders/ports-10.9_x86_64-builder/builds/249207/steps/install-port/logs/stdio
In file included from /opt/local/var/macports/build/_opt_bblocal_var_buildworker_ports_build_ports_python_py-onnx/py311-onnx/work/onnx-1.14.1/.setuptools-cmake-build/onnx/onnx-data.pb.cc:4: In file included from /opt/local/var/macports/build/_opt_bblocal_var_buildworker_ports_build_ports_python_py-onnx/py311-onnx/work/onnx-1.14.1/.setuptools-cmake-build/onnx/onnx-data.pb.h:24: In file included from /opt/local/include/google/protobuf/arena.h:52: /opt/local/include/google/protobuf/arena_impl.h:62:34: error: unknown type name 'max_align_t'; did you mean 'std::max_align_t'? enum { kCacheAlignment = alignof(max_align_t) }; // do the best we can ^ /Library/Developer/CommandLineTools/usr/bin/../include/c++/v1/cstddef:55:21: note: 'std::max_align_t' declared here typedef long double max_align_t; ^
Explicitly specifying the std namespace here would be more correct anyway, as max_align_t
in the global namespace is really a C thing not C++.
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