@@ -66,11 +66,11 @@
 		return OSAtomicAdd64Barrier(i, p);
 # endif
 	else
 		abort();
 #else
-# error No atomic operations available!
+# error of_atomic_add_int not implemented!
 #endif
 }
 
 static OF_INLINE int32_t
 of_atomic_add_32(volatile int32_t *p, int32_t i)
@@ -90,11 +90,11 @@
 #elif defined(OF_HAVE_GCC_ATOMIC_OPS)
 	return __sync_add_and_fetch(p, i);
 #elif defined(OF_HAVE_OSATOMIC)
 	return OSAtomicAdd32Barrier(i, p);
 #else
-# error No atomic operations available!
+# error of_atomic_add_32 not implemented!
 #endif
 }
 
 static OF_INLINE void*
 of_atomic_add_ptr(void* volatile *p, intptr_t i)
@@ -131,11 +131,11 @@
 		return (void*)OSAtomicAdd64Barrier(i, (int64_t*)p);
 # endif
 	else
 		abort();
 #else
-# error No atomic operations available!
+# error of_atomic_add_ptr not implemented!
 #endif
 }
 
 static OF_INLINE int
 of_atomic_sub_int(volatile int *p, int i)
@@ -177,11 +177,11 @@
 		return OSAtomicAdd64Barrier(-i, p);
 # endif
 	else
 		abort();
 #else
-# error No atomic operations available!
+# error of_atomic_sub_int not implemented!
 #endif
 }
 
 static OF_INLINE int32_t
 of_atomic_sub_32(volatile int32_t *p, int32_t i)
@@ -202,11 +202,11 @@
 #elif defined(OF_HAVE_GCC_ATOMIC_OPS)
 	return __sync_sub_and_fetch(p, i);
 #elif defined(OF_HAVE_OSATOMIC)
 	return OSAtomicAdd32Barrier(-i, p);
 #else
-# error No atomic operations available!
+# error of_atomic_sub_32 not implemented!
 #endif
 }
 
 static OF_INLINE void*
 of_atomic_sub_ptr(void* volatile *p, intptr_t i)
@@ -245,11 +245,11 @@
 		return (void*)OSAtomicAdd64Barrier(-i, (int64_t*)p);
 # endif
 	else
 		abort();
 #else
-# error No atomic operations available!
+# error of_atomic_sub_ptr not implemented!
 #endif
 }
 
 static OF_INLINE int
 of_atomic_inc_int(volatile int *p)
@@ -295,11 +295,11 @@
 		return OSAtomicDecrement64Barrier(p);
 # endif
 	else
 		abort();
 #else
-# error No atomic operations available!
+# error of_atomic_inc_int not implemented!
 #endif
 }
 
 static OF_INLINE int32_t
 of_atomic_inc_32(volatile int32_t *p)
@@ -323,11 +323,11 @@
 #elif defined(OF_HAVE_GCC_ATOMIC_OPS)
 	return __sync_add_and_fetch(p, 1);
 #elif defined(OF_HAVE_OSATOMIC)
 	return OSAtomicIncrement32Barrier(p);
 #else
-# error No atomic operations available!
+# error of_atomic_inc_32 not implemented!
 #endif
 }
 
 static OF_INLINE int
 of_atomic_dec_int(volatile int *p)
@@ -373,11 +373,11 @@
 		return OSAtomicDecrement64Barrier(p);
 # endif
 	else
 		abort();
 #else
-# error No atomic operations available!
+# error of_atomic_dec_int not implemented!
 #endif
 }
 
 static OF_INLINE int32_t
 of_atomic_dec_32(volatile int32_t *p)
@@ -401,11 +401,11 @@
 #elif defined(OF_HAVE_GCC_ATOMIC_OPS)
 	return __sync_sub_and_fetch(p, 1);
 #elif defined(OF_HAVE_OSATOMIC)
 	return OSAtomicDecrement32Barrier(p);
 #else
-# error No atomic operations available!
+# error of_atomic_dec_32 not implemented!
 #endif
 }
 
 static OF_INLINE unsigned int
 of_atomic_or_int(volatile unsigned int *p, unsigned int i)
@@ -455,11 +455,11 @@
 		return OSAtomicOr64Barrier(i, p);
 # endif
 	else
 		abort();
 #else
-# error No atomic operations available!
+# error of_atomic_or_int not implemented!
 #endif
 }
 
 static OF_INLINE uint32_t
 of_atomic_or_32(volatile uint32_t *p, uint32_t i)
@@ -484,11 +484,11 @@
 #elif defined(OF_HAVE_GCC_ATOMIC_OPS)
 	return __sync_or_and_fetch(p, i);
 #elif defined(OF_HAVE_OSATOMIC)
 	return OSAtomicOr32Barrier(i, p);
 #else
-# error No atomic operations available!
+# error of_atomic_or_32 not implemented!
 #endif
 }
 
 static OF_INLINE unsigned int
 of_atomic_and_int(volatile unsigned int *p, unsigned int i)
@@ -538,11 +538,11 @@
 		return OSAtomicAnd64Barrier(i, p);
 # endif
 	else
 		abort();
 #else
-# error No atomic operations available!
+# error of_atomic_and_int not implemented!
 #endif
 }
 
 static OF_INLINE uint32_t
 of_atomic_and_32(volatile uint32_t *p, uint32_t i)
@@ -567,11 +567,11 @@
 #elif defined(OF_HAVE_GCC_ATOMIC_OPS)
 	return __sync_and_and_fetch(p, i);
 #elif defined(OF_HAVE_OSATOMIC)
 	return OSAtomicAnd32Barrier(i, p);
 #else
-# error No atomic operations available!
+# error of_atomic_and_32 not implemented!
 #endif
 }
 
 static OF_INLINE unsigned int
 of_atomic_xor_int(volatile unsigned int *p, unsigned int i)
@@ -621,11 +621,11 @@
 		return OSAtomicXor64Barrier(i, p);
 # endif
 	else
 		abort();
 #else
-# error No atomic operations available!
+# error of_atomic_xor_int not implemented!
 #endif
 }
 
 static OF_INLINE uint32_t
 of_atomic_xor_32(volatile uint32_t *p, uint32_t i)
@@ -650,11 +650,11 @@
 #elif defined(OF_HAVE_GCC_ATOMIC_OPS)
 	return __sync_xor_and_fetch(p, i);
 #elif defined(OF_HAVE_OSATOMIC)
 	return OSAtomicXor32Barrier(i, p);
 #else
-# error No atomic operations available!
+# error of_atomic_xor_32 not implemented!
 #endif
 }
 
 static OF_INLINE bool
 of_atomic_cmpswap_int(volatile int *p, int o, int n)
@@ -683,11 +683,11 @@
 #elif defined(OF_HAVE_GCC_ATOMIC_OPS)
 	return __sync_bool_compare_and_swap(p, o, n);
 #elif defined(OF_HAVE_OSATOMIC)
 	return OSAtomicCompareAndSwapIntBarrier(o, n, p);
 #else
-# error No atomic operations available!
+# error of_atomic_cmpswap_int not implemented!
 #endif
 }
 
 static OF_INLINE bool
 of_atomic_cmpswap_32(volatile int32_t *p, int32_t o, int32_t n)
@@ -716,11 +716,11 @@
 #elif defined(OF_HAVE_GCC_ATOMIC_OPS)
 	return __sync_bool_compare_and_swap(p, o, n);
 #elif defined(OF_HAVE_OSATOMIC)
 	return OSAtomicCompareAndSwap32Barrier(o, n, p);
 #else
-# error No atomic operations available!
+# error of_atomic_cmpswap_32 not implemented!
 #endif
 }
 
 static OF_INLINE bool
 of_atomic_cmpswap_ptr(void* volatile *p, void *o, void *n)
@@ -749,11 +749,11 @@
 #elif defined(OF_HAVE_GCC_ATOMIC_OPS)
 	return __sync_bool_compare_and_swap(p, o, n);
 #elif defined(OF_HAVE_OSATOMIC)
 	return OSAtomicCompareAndSwapPtrBarrier(o, n, p);
 #else
-# error No atomic operations available!
+# error of_atomic_cmpswap_ptr not implemented!
 #endif
 }
 
 static OF_INLINE void
 of_memory_barrier(void)
@@ -766,11 +766,11 @@
 #elif defined(OF_HAVE_GCC_ATOMIC_OPS)
 	__sync_synchronize();
 #elif defined(OF_HAVE_OSATOMIC)
 	OSMemoryBarrier();
 #else
-# error No atomic operations available!
+# error of_memory_barrier not implemented!
 #endif
 }
 
 static OF_INLINE void
 of_memory_read_barrier(void)