@@ -21,11 +21,11 @@
 
 #import "runtime.h"
 #import "runtime-private.h"
 
 static struct objc_sparsearray_level2 *empty_level2 = NULL;
-#ifndef OF_SELUID16
+#ifdef OF_SELUID24
 static struct objc_sparsearray_level3 *empty_level3 = NULL;
 #endif
 
 static void
 init(void)
@@ -36,19 +36,19 @@
 	if (empty_level2 == NULL)
 		OBJC_ERROR("Not enough memory to allocate sparse array!");
 
 	empty_level2->empty = YES;
 
-#ifndef OF_SELUID16
+#ifdef OF_SELUID24
 	empty_level3 = malloc(sizeof(struct objc_sparsearray_level3));
 	if (empty_level3 == NULL)
 		OBJC_ERROR("Not enough memory to allocate sparse array!");
 
 	empty_level3->empty = YES;
 #endif
 
-#ifndef OF_SELUID16
+#ifdef OF_SELUID24
 	for (i = 0; i < 256; i++) {
 		empty_level2->buckets[i] = empty_level3;
 		empty_level3->buckets[i] = NULL;
 	}
 #else
@@ -61,11 +61,11 @@
 objc_sparsearray_new(void)
 {
 	struct objc_sparsearray *s;
 	uint_fast16_t i;
 
-#ifndef OF_SELUID16
+#ifdef OF_SELUID24
 	if (empty_level2 == NULL || empty_level3 == NULL)
 		init();
 #else
 	if (empty_level2 == NULL)
 		init();
@@ -83,20 +83,20 @@
 void
 objc_sparsearray_copy(struct objc_sparsearray *dst,
     struct objc_sparsearray *src)
 {
 	uint_fast16_t i, j;
-#ifndef OF_SELUID16
+#ifdef OF_SELUID24
 	uint_fast16_t k;
 #endif
 	uint32_t idx;
 
 	for (i = 0; i < 256; i++) {
 		if (src->buckets[i]->empty)
 			continue;
 
-#ifndef OF_SELUID16
+#ifdef OF_SELUID24
 		for (j = 0; j < 256; j++) {
 			if (src->buckets[i]->buckets[j]->empty)
 				continue;
 
 			for (k = 0; k < 256; k++) {
@@ -129,11 +129,11 @@
 }
 
 void
 objc_sparsearray_set(struct objc_sparsearray *s, uint32_t idx, const void *obj)
 {
-#ifndef OF_SELUID16
+#ifdef OF_SELUID24
 	uint8_t i = idx >> 16;
 	uint8_t j = idx >>  8;
 	uint8_t k = idx;
 #else
 	uint8_t i = idx >> 8;
@@ -151,20 +151,20 @@
 			    "array!");
 
 		t->empty = NO;
 
 		for (l = 0; l < 256; l++)
-#ifndef OF_SELUID16
+#ifdef OF_SELUID24
 			t->buckets[l] = empty_level3;
 #else
 			t->buckets[l] = NULL;
 #endif
 
 		s->buckets[i] = t;
 	}
 
-#ifndef OF_SELUID16
+#ifdef OF_SELUID24
 	if (s->buckets[i]->buckets[j]->empty) {
 		struct objc_sparsearray_level3 *t;
 		uint_fast16_t l;
 
 		t = malloc(sizeof(struct objc_sparsearray_level3));
@@ -189,16 +189,16 @@
 
 void
 objc_sparsearray_free(struct objc_sparsearray *s)
 {
 	uint_fast16_t i;
-#ifndef OF_SELUID16
+#ifdef OF_SELUID24
 	uint_fast16_t j;
 #endif
 
 	for (i = 0; i < 256; i++) {
-#ifndef OF_SELUID16
+#ifdef OF_SELUID24
 		if (s->buckets[i]->empty)
 			continue;
 
 		for (j = 0; j < 256; j++)
 			if (!s->buckets[i]->buckets[j]->empty)
@@ -214,15 +214,15 @@
 void
 objc_sparsearray_cleanup(void)
 {
 	if (empty_level2 != NULL)
 		free(empty_level2);
-#ifndef OF_SELUID16
+#ifdef OF_SELUID24
 	if (empty_level3 != NULL)
 		free(empty_level3);
 #endif
 
 	empty_level2 = NULL;
-#ifndef OF_SELUID16
+#ifdef OF_SELUID24
 	empty_level3 = NULL;
 #endif
 }