On 16 Apr 2023, at 20:32, Tom Vogt <freebsdli...@bsdunix.ch> wrote:
> 
> I try to compile the latest 13 stable version but it fails with an llvm error.
> 
> My working version is:
> 13.2-STABLE stable/13-3cea7ca84 GENERIC amd64
> 
> The version I try o compile is:
> git show -s
> commit 3e9d966ce45e3971c295a1dff7435d6b9f1321da (grafted, HEAD -> stable/13, 
> origin/stable/13)
> 
> Compile:
> make -j `sysctl -n hw.ncpu` buildworld buildkernel && make installkernel
> 
> Error:
> cc  -O2 -pipe -fno-common 
> -I/usr/obj/usr/src/amd64.amd64/tmp/obj-tools/lib/clang/libllvm 
> -I/usr/src/contrib/llvm-project/llvm/lib/Target/X86 
> -I/usr/src/contrib/llvm-project/llvm/lib/ObjCopy -I/usr/src/lib/clang/include 
> -I/usr/src/contrib/llvm-project/llvm/include -D__STDC_CONSTANT_MACROS 
> -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -DHAVE_VCS_VERSION_INC -DNDEBUG 
> -DLLVM_DEFAULT_TARGET_TRIPLE=\"x86_64-unknown-freebsd13.2\" 
> -DLLVM_HOST_TRIPLE=\"x86_64-unknown-freebsd13.2\" 
> -DDEFAULT_SYSROOT=\"/usr/obj/usr/src/amd64.amd64/tmp\" 
> -DLLVM_TARGET_ENABLE_X86 -DLLVM_NATIVE_ASMPARSER=LLVMInitializeX86AsmParser 
> -DLLVM_NATIVE_ASMPRINTER=LLVMInitializeX86AsmPrinter 
> -DLLVM_NATIVE_DISASSEMBLER=LLVMInitializeX86Disassembler 
> -DLLVM_NATIVE_TARGET=LLVMInitializeX86Target 
> -DLLVM_NATIVE_TARGETINFO=LLVMInitializeX86TargetInfo 
> -DLLVM_NATIVE_TARGETMC=LLVMInitializeX86TargetMC -ffunction-sections 
> -fdata-sections -MD  -MF.depend.Support_BLAKE3_blake3.o 
> -MTSupport/BLAKE3/blake3.o -std=gnu99 -Wno-format-zero-length 
> -Wno-pointer-sign -Wno-empty-body -Wno-string-plus-int 
> -Wno-unused-const-variable -Wno-error=unused-but-set-variable 
> -Wno-tautological-compare -Wno-unused-value -Wno-parentheses-equality 
> -Wno-unused-function -Wno-enum-conversion -Wno-unused-local-typedef 
> -Wno-address-of-packed-member -Wno-switch -Wno-switch-enum 
> -Wno-knr-promoted-parameter -Wno-parentheses  -Qunused-arguments 
> -I/usr/obj/usr/src/amd64.amd64/tmp/legacy/usr/include -c 
> /usr/src/contrib/llvm-project/llvm/lib/Support/BLAKE3/blake3.c -o 
> Support/BLAKE3/blake3.o
> 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:61:10: 
> fatal error: 'immintrin.h' file not found
> #include <immintrin.h>
>         ^~~~~~~~~~~~~

This type of error pops up every once in a while, and it usually turns
out that people deleted their /usr/lib/clang directory for some reason,
or if they did a packaged base install, they did not install the
toolchain packages.

In any case, you will have to restore the files in /usr/lib/clang for
the build to continue.

-Dimitry

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