+#if defined(__NetBSD__) && defined(HAVE_ATOMIC_OPS)
+
+#define WAPI_ATOMIC_ASM
+static inline gint32 InterlockedCompareExchange(volatile gint32 *dest,
+ gint32 exch, gint32 comp)
+{
+ return atomic_cas_32((uint32_t*)dest, comp, exch);
+}
+
+static inline gpointer InterlockedCompareExchangePointer(volatile gpointer *dest, gpointer exch, gpointer comp)
+{
+ return atomic_cas_ptr(dest, comp, exch);
+}
+
+static inline gint32 InterlockedIncrement(volatile gint32 *val)
+{
+ return atomic_inc_32_nv((uint32_t*)val);
+}
+
+static inline gint32 InterlockedDecrement(volatile gint32 *val)
+{
+ return atomic_dec_32_nv((uint32_t*)val);
+}
+
+static inline gint32 InterlockedExchange(volatile gint32 *val, gint32 new_val)
+{
+ return atomic_swap_32((uint32_t*)val, new_val);
+}
+
+static inline gpointer InterlockedExchangePointer(volatile gpointer *val,
+ gpointer new_val)
+{
+ return atomic_swap_ptr(val, new_val);
+}
+
+static inline gint32 InterlockedExchangeAdd(volatile gint32 *val, gint32 add)
+{
+ return atomic_add_32_nv((uint32_t*)val, add) - add;
+}
+
+#elif defined(__i386__) || defined(__x86_64__)