Public bug reported:
On riscv64, the vendored xxHash RVV implementation defines generic
concat and concat2 preprocessor macros and leaves them defined after the
header is included. Gandiva subsequently includes LLVM headers
containing C++ functions named concat; the preprocessor treats these as
invocations of xxHash’s two-argument macro, causing compilation errors.
Other architectures are unaffected because the offending macros are
defined only when RISC-V Vector support is enabled.
** Affects: apache-arrow (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/2168284
Title:
RISC-V macro names conflict with LLVM 22 symbols
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