On Thu, Apr 02, 2026 at 10:53:24AM -0500, Nathan Bossart wrote: > I think the new pg_comp_crc32_choose() is infinitely recursing on macOS > because USE_ARMV8_CRC32C_WITH_RUNTIME_CHECK is not defined but > pg_crc32c_armv8_available() returns false. If I trace through that > function, I see that it's going straight to the > > #else > return false; > #endif > > at the end. And sure enough, both HAVE_ELF_AUX_INFO and HAVE_GETAUXVAL > aren't defined in pg_config.h. I think we might need to use sysctlbyname() > to determine PMULL support on macOS, but at this stage of the development > cycle, I would probably lean towards just compiling in the sb8 > implementation.
Hm. On second thought, that probably regresses macOS builds because it was presumably using the armv8 path without runtime checks before... -- nathan
