check_cxx_source_compiles("
	#include <sys/types.h>
	#include <sys/sysctl.h>
	int main() {
		static const int name[2] = {CTL_KERN, KERN_ARND};
		sysctl(name, 2, nullptr, nullptr, nullptr, 0);
		return 0;
	}
" HAVE_SYSCTL_ARND)