mapleFU opened a new issue, #35526:
URL: https://github.com/apache/arrow/issues/35526
### Describe the bug, including details regarding any error messages,
version, and platform.
Error messages would be like:
```
D:/a/arrow/arrow/cpp/src/arrow/array/data.h:530:15: warning: 'bool
arrow::internal::IsNullRunEndEncoded(const arrow::ArrayData&, int64_t)'
redeclared without dllimport attribute after being referenced with dll linkage
530 | friend bool internal::IsNullRunEndEncoded(const ArrayData& span,
int64_t i);
| ^~~~~~~~
[122/131] Linking CXX shared library release\libparquet.dll
[123/131] Linking CXX shared library release\libarrow_dataset.dll
[124/131] Linking CXX shared library release\libarrow_substrait.dll
[125/131] Building CXX object
src/gandiva/CMakeFiles/gandiva_shared.dir/Unity/unity_4_cxx.cxx.obj
In file included from D:/a/arrow/arrow/cpp/src/arrow/array/array_base.h:26,
from D:/a/arrow/arrow/cpp/src/arrow/array.h:41,
from D:/a/arrow/arrow/cpp/src/gandiva/arrow.h:23,
from D:/a/arrow/arrow/cpp/src/gandiva/simple_arena.h:27,
from
D:/a/arrow/arrow/cpp/src/gandiva/execution_context.h:22,
from D:/a/arrow/arrow/cpp/src/gandiva/interval_holder.h:27,
from D:/a/arrow/arrow/cpp/src/gandiva/interval_holder.cc:18,
from
D:/a/arrow/arrow/build/cpp/src/gandiva/CMakeFiles/gandiva_shared.dir/Unity/unity_4_cxx.cxx:3:
D:/a/arrow/arrow/cpp/src/arrow/array/data.h:530:15: warning: 'bool
arrow::internal::IsNullRunEndEncoded(const arrow::ArrayData&, int64_t)'
redeclared without dllimport attribute after being referenced with dll linkage
530 | friend bool internal::IsNullRunEndEncoded(const ArrayData& span,
int64_t i);
| ^~~~~~~~
In file included from
D:/a/arrow/arrow/build/cpp/src/gandiva/CMakeFiles/gandiva_shared.dir/Unity/unity_4_cxx.cxx:5:
D:/a/arrow/arrow/cpp/src/gandiva/llvm_generator.cc: In member function
'arrow::Status gandiva::LLVMGenerator::CodeGenExprValue(gandiva::DexPtr, int,
gandiva::FieldDescriptorPtr, int, std::string&,
gandiva::SelectionVector::Mode)':
D:/a/arrow/arrow/cpp/src/gandiva/llvm_generator.cc:362:27: warning:
'selection_vector_type' may be used uninitialized [-Wmaybe-uninitialized]
362 | builder->CreateGEP(selection_vector_type,
arg_selection_vector, loop_var);
|
~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
D:/a/arrow/arrow/cpp/src/gandiva/llvm_generator.cc:282:15: note:
'selection_vector_type' was declared here
282 | llvm::Type* selection_vector_type;
| ^~~~~~~~~~~~~~~~~~~~~
```
See
https://github.com/apache/arrow/actions/runs/4935627139/jobs/8822177881?pr=35520
and
https://github.com/apache/arrow/actions/runs/4926681476/jobs/8802598792?pr=35428
Personally I guess it was introduced in
https://github.com/apache/arrow/commit/fde31ed1cb1de1a0d2b9ade257e66104160d31bb
### Component(s)
C++, Continuous Integration
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