Determining if the include file immintrin.h exists failed with the following output: Change Dir: /home/rclinux/rc-buildroot-test/scripts/instance-0/output-1/build/minizip-2.10.0/CMakeFiles/CMakeTmp Run Build Command(s):/usr/bin/make cmTC_da883/fast && make[1]: Entering directory '/home/rclinux/rc-buildroot-test/scripts/instance-0/output-1/build/minizip-2.10.0/CMakeFiles/CMakeTmp' /usr/bin/make -f CMakeFiles/cmTC_da883.dir/build.make CMakeFiles/cmTC_da883.dir/build make[2]: Entering directory '/home/rclinux/rc-buildroot-test/scripts/instance-0/output-1/build/minizip-2.10.0/CMakeFiles/CMakeTmp' Building C object CMakeFiles/cmTC_da883.dir/CheckIncludeFile.c.o /home/rclinux/rc-buildroot-test/scripts/instance-0/output-1/host/bin/arm-none-linux-gnueabi-gcc --sysroot=/home/rclinux/rc-buildroot-test/scripts/instance-0/output-1/host/arm-buildroot-linux-gnueabi/sysroot -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -O2 -D_FORTIFY_SOURCE=2 -DNDEBUG -o CMakeFiles/cmTC_da883.dir/CheckIncludeFile.c.o -c /home/rclinux/rc-buildroot-test/scripts/instance-0/output-1/build/minizip-2.10.0/CMakeFiles/CMakeTmp/CheckIncludeFile.c /home/rclinux/rc-buildroot-test/scripts/instance-0/output-1/build/minizip-2.10.0/CMakeFiles/CMakeTmp/CheckIncludeFile.c:1:23: fatal error: immintrin.h: No such file or directory #include ^ compilation terminated. CMakeFiles/cmTC_da883.dir/build.make:65: recipe for target 'CMakeFiles/cmTC_da883.dir/CheckIncludeFile.c.o' failed make[2]: *** [CMakeFiles/cmTC_da883.dir/CheckIncludeFile.c.o] Error 1 make[2]: Leaving directory '/home/rclinux/rc-buildroot-test/scripts/instance-0/output-1/build/minizip-2.10.0/CMakeFiles/CMakeTmp' Makefile:121: recipe for target 'cmTC_da883/fast' failed make[1]: *** [cmTC_da883/fast] Error 2 make[1]: Leaving directory '/home/rclinux/rc-buildroot-test/scripts/instance-0/output-1/build/minizip-2.10.0/CMakeFiles/CMakeTmp'