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) {
        #if defined(_MSC_VER)
            return _arm_uqsub16(a, b);
        #else
            return __uqsub16(a, b);
        #endif
        }
        int main(void) { return f(1,2); }"
        HAVE_ARMV6_INTRIN
    )