Index: src/OFBlock.m
==================================================================
--- src/OFBlock.m
+++ src/OFBlock.m
@@ -407,17 +407,17 @@
 		return [super autorelease];
 
 	return self;
 }
 
-- (size_t)retainCount
+- (unsigned int)retainCount
 {
 	if (isa == (Class)&_NSConcreteMallocBlock)
 		return ((of_block_literal_t*)self)->flags &
 		    OF_BLOCK_REFCOUNT_MASK;
 
-	return SIZE_MAX;
+	return OF_RETAIN_COUNT_MAX;
 }
 
 - (void)release
 {
 	Block_release(self);

Index: src/OFConstantString.m
==================================================================
--- src/OFConstantString.m
+++ src/OFConstantString.m
@@ -146,13 +146,13 @@
 - autorelease
 {
 	return self;
 }
 
-- (size_t)retainCount
+- (unsigned int)retainCount
 {
-	return SIZE_MAX;
+	return OF_RETAIN_COUNT_MAX;
 }
 
 - (void)release
 {
 }

Index: src/OFExceptions.m
==================================================================
--- src/OFExceptions.m
+++ src/OFExceptions.m
@@ -125,13 +125,13 @@
 - autorelease
 {
 	return self;
 }
 
-- (size_t)retainCount
+- (unsigned int)retainCount
 {
-	return SIZE_MAX;
+	return OF_RETAIN_COUNT_MAX;
 }
 
 - (void)release
 {
 }

Index: src/OFFile.m
==================================================================
--- src/OFFile.m
+++ src/OFFile.m
@@ -642,13 +642,13 @@
 
 - (void)release
 {
 }
 
-- (size_t)retainCount
+- (unsigned int)retainCount
 {
-	return SIZE_MAX;
+	return OF_RETAIN_COUNT_MAX;
 }
 
 - (void)dealloc
 {
 	@throw [OFNotImplementedException newWithClass: isa

Index: src/OFObject.h
==================================================================
--- src/OFObject.h
+++ src/OFObject.h
@@ -31,10 +31,12 @@
 # import <objfw-rt.h>
 #else
 # import <objc/objc.h>
 #endif
 
+#define OF_RETAIN_COUNT_MAX UINT_MAX
+
 /**
  * \brief A result of a comparison.
  */
 typedef enum of_comparison_result_t {
 	/// The left object is smaller than the right
@@ -108,11 +110,11 @@
 - retain;
 
 /**
  * \return The retain count
  */
-- (size_t)retainCount;
+- (unsigned int)retainCount;
 
 /**
  * Decreases the retain count.
  *
  * Each time an object is released, the retain count gets decreased and the

Index: src/OFObject.m
==================================================================
--- src/OFObject.m
+++ src/OFObject.m
@@ -700,14 +700,14 @@
 #endif
 
 	return self;
 }
 
-- (size_t)retainCount
+- (unsigned int)retainCount
 {
 	assert(PRE_IVAR->retain_count >= 0);
-	return (size_t)PRE_IVAR->retain_count;
+	return PRE_IVAR->retain_count;
 }
 
 - (void)release
 {
 #if defined(OF_ATOMIC_OPS)
@@ -839,13 +839,13 @@
 + autorelease
 {
 	return self;
 }
 
-+ (size_t)retainCount
++ (unsigned int)retainCount
 {
-	return SIZE_MAX;
+	return OF_RETAIN_COUNT_MAX;
 }
 
 + (void)release
 {
 }