fatal error: 'immintrin.h' file not found

[Dimitry Andric]

On 22 Jul 2018, at 21:59, Stefan Hagen <sh+freebsd-current at codevoid.de> wrote:
> 
> I think I broke something and I can't figure out what it is. Since a few
> weeks, I'm not able to build current anymore.
> 
> make buildkernel, buildworld, toolchain - all abort with the following
> error:
> 
> --- lz_encoder.o ---
> In file included from /usr/src/contrib/xz/src/liblzma/lz/lz_encoder.c:23:
> /usr/src/contrib/xz/src/liblzma/common/memcmplen.h:19:11: fatal error: 'immintrin.h' file not found
> #       include <immintrin.h>
>                ^~~~~~~~~~~~~
> 1 error generated.
> 
> Find shows me, that immintrin.h can be found in the following locations:
> 
> $ find / -name "immintrin.h"
> /usr/lib/clang/4.0.0/include/immintrin.h
> /usr/lib/clang/3.8.0/include/immintrin.h
> /usr/lib/clang/5.0.0/include/immintrin.h
> /usr/lib/clang/6.0.0/include/immintrin.h
> /usr/lib/clang/5.0.1/include/immintrin.h

What does "cc -v" show?  If it is clang 6.0.1, you are missing the 6.0.1
intrinsics headers, located in /usr/lib/clang/6.0.1/include.  As a quick
hack, you can try copying the /usr/lib/clang/6.0.0 headers there, or
attempt to run "make install" in /usr/src/lib/clang/headers.

-Dimitry

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