[Bug 265027] devel/qt5-core does not compile on Penryn (-march=native does not support sse42) crc32 error

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Mon Mar 23 00:08:20 GMT 2026


https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=265027

--- Comment #10 from Torsten Zuehlsdorff <tz at freebsd.org> ---
I am closing this bug as a user configuration issue. The crc32 instruction
error occurs because -march=native does not properly map Penryn CPU
capabilities with LLVM 14. Maintainer tcberner provided the workaround
(-march=penryn in make.conf), and Adriaan de Groot confirmed this is a compiler
issue, not a port bug. The Qt5 port has been updated to 5.15.18 since.

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