check_c_source_compiles(
        "#if defined(_MSC_VER)
        #include <intrin.h>
        #else
        #include <arm_acle.h>
        #endif
        unsigned int f(unsigned int a, unsigned int b) {
            return __crc32w(a, b);
        }
        int main(void) { return 0; }"
        HAVE_ACLE_FLAG
    )