tree: https://github.com/0day-ci/linux/commits/UPDATE-20210715-014555/Alexey-Dobriyan/Decouple-build-from-userspace-headers/20210714-034924 head: f189675c22efc0acc3b1d1d15220c37aa3cb4fe3 commit: f189675c22efc0acc3b1d1d15220c37aa3cb4fe3 Decouple build from userspace headers date: 5 hours ago config: powerpc-randconfig-r014-20210714 (attached as .config) compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project 8d69635ed9ecf36fd0ca85906bfde17949671cbe) reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # install powerpc cross compiling tool for clang build # apt-get install binutils-powerpc-linux-gnu # https://github.com/0day-ci/linux/commit/f189675c22efc0acc3b1d1d15220c37aa3cb4fe3 git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review UPDATE-20210715-014555/Alexey-Dobriyan/Decouple-build-from-userspace-headers/20210714-034924 git checkout f189675c22efc0acc3b1d1d15220c37aa3cb4fe3 # save the attached .config to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross O=build_dir ARCH=powerpc SHELL=/bin/bash arch/powerpc/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot All errors (new ones prefixed by >>): >> arch/powerpc/lib/xor_vmx.c:14:10: fatal error: 'altivec.h' file not found #include ^~~~~~~~~~~ 1 error generated. vim +14 arch/powerpc/lib/xor_vmx.c ef1313deafb7ba Anton Blanchard 2013-10-14 @14 #include 8fe088850f13ea Daniel Axtens 2016-04-26 15 #else 8fe088850f13ea Daniel Axtens 2016-04-26 16 #define vec_xor(a, b) a ^ b 8fe088850f13ea Daniel Axtens 2016-04-26 17 #define vector __attribute__((vector_size(16))) 8fe088850f13ea Daniel Axtens 2016-04-26 18 #endif ef1313deafb7ba Anton Blanchard 2013-10-14 19 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org