The NetBSD-current/i386 build is working again. The following commits were made between the last failed build and the first successful build:
2024.07.15.13.59.19 riastradh src/sys/crypto/arch/x86/immintrin.h 1.3 2024.07.15.13.59.19 riastradh src/sys/crypto/arch/x86/immintrin_ext.h 1.2 Logs can be found at: http://releng.NetBSD.org/b5reports/i386/commits-2024.07.html#2024.07.15.13.59.19