#ifdef __APPLE__
-#define CLOCK_REALTIME 0
-#define CLOCK_MONOTONIC 1
+#include <mach/clock_types.h>
+#define CLOCK_REALTIME CALENDAR_CLOCK
+#define CLOCK_MONOTONIC SYSTEM_CLOCK
-void clock_gettime(int type, struct timespec *tv);
+int clock_gettime(int type, struct timespec *tv);
#endif
#define __packed __attribute__((packed))
#endif
+#ifndef __constructor
+#define __constructor __attribute__((constructor))
+#endif
+
+#ifndef __destructor
+#define __destructor __attribute__((destructor))
+#endif
+
+#ifndef __hidden
+#define __hidden __attribute__((visibility("hidden")))
+#endif
+
#ifndef BITS_PER_LONG
#define BITS_PER_LONG (8 * sizeof(unsigned long))
#endif
+#define BITFIELD_SIZE(_n) (((_n) + (BITS_PER_LONG - 1)) / BITS_PER_LONG)
+
static inline void bitfield_set(unsigned long *bits, int bit)
{
bits[bit / BITS_PER_LONG] |= (1UL << (bit % BITS_PER_LONG));