[Bug 286529] Buildworld fails on 14.2-RELEASE-p1 not finding immintrin.h

From: <bugzilla-noreply_at_freebsd.org>
Date: Fri, 02 May 2025 16:25:39 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=286529

            Bug ID: 286529
           Summary: Buildworld fails on 14.2-RELEASE-p1 not finding
                    immintrin.h
           Product: Base System
           Version: 14.2-RELEASE
          Hardware: amd64
                OS: Any
            Status: New
          Severity: Affects Some People
          Priority: ---
         Component: misc
          Assignee: bugs@FreeBSD.org
          Reporter: marquis@roble.com

On a relatively vanilla 14.2 amd64 system:

#  gitup -r release
...
# Have: 1eb03b059e56b9cde4246e406f96881cc128528a
# Want: 1eb03b059e56b9cde4246e406f96881cc128528a
# Branch: releng/14.2

# freebsd-version
14.2-RELEASE-p1

# make clean && make buildworld
...
In file included from
/usr/src/contrib/llvm-project/llvm/lib/Support/BLAKE3/blake3.c:13:
/usr/src/contrib/llvm-project/llvm/lib/Support/BLAKE3/blake3_impl.h:53:10:
fatal error: 'immintrin.h' file not found
   53 | #include <immintrin.h>

Last successful build was on Feb 1.

See also Bug 283581.

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