*/
#if defined(__i386__)
#include <mach/i386/thread_act.h>
+#elif defined(__x86_64__)
+#include <mach/x86_64/thread_act.h>
#elif defined(__ppc__)
#include <mach/ppc/thread_act.h>
+#elif defined(__ppc64__)
+#include <mach/ppc64/thread_act.h>
#else
#error unknown architecture
#endif