On 23 Dec 2017, at 10:56, Peter Jeremy <pe...@rulingia.com> wrote: > > Since r326496, buildworld on my 12-current/amd64 system has consistently > died as follows. ... > /usr/src/contrib/llvm/tools/clang/lib/Basic/SourceManager.cpp:1166:10: fatal > error: 'emmintrin.h' file not found > #include <emmintrin.h> > ^~~~~~~~~~~~~ > 1 error generated. > *** Error code 1 > > Stop. > make: stopped in /usr/src/lib/clang/libclang > > I'm building on a 12.0-CURRENT VirtualBox guest at r326430. I've checked > that my /usr/src is clean and deleted /usr/obj to no effect. I have dug > into SourceManager.cpp and the #include is protected by a #if __SSE2__, > which is relying on clang internal checks to define (and my CPU supports > SSE2). Does anyone have any ideas to explain what is going on?
First of all, does your host system have emmintrin.h? E.g. what is the output of "find /usr/lib/clang -name emmintrin.h" ? Second, I think this scenario might be possible if you force -march or other CPU type flags into CFLAGS, instead of using CPUTYPE. What is the contents of your make.conf, and other build environment variables? -Dimitry
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