Zoltán Borók-Nagy created IMPALA-13190:
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Summary: Backport Clang compiler fix to Toolchain Clang 5.0.1
Key: IMPALA-13190
URL: https://issues.apache.org/jira/browse/IMPALA-13190
Project: IMPALA
Issue Type: Sub-task
Components: Toolchain
Reporter: Zoltán Borók-Nagy
Toolchain Clang 5.0.1 fails to compile the CRoaring library.
There was an overlook in the C11 standard that didn't allow const argument for
atomic_load operations. It was later revised, see
[https://www.open-std.org/jtc1/sc22/wg14/www/docs/n1807.htm]
Since then GCC/Clang allow passing const _Atomic(T)* in all versions of C.
* LLVM discussion thread:
[https://lists.llvm.org/pipermail/cfe-dev/2018-May/058129.html]
* Clang fix:
[https://github.com/llvm/llvm-project/commit/b4b1f59869b1045258787f5a138f9710859cfe95]
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