Index: src/OFObject.m
==================================================================
--- src/OFObject.m
+++ src/OFObject.m
@@ -66,11 +66,11 @@
 #endif
 };
 
 /* Hopefully no arch needs more than 16 bytes padding */
 #define PRE_IVAR_ALIGN ((sizeof(struct pre_ivar) + 15) & ~15)
-#define PRE_IVAR ((struct pre_ivar*)((char*)self - PRE_IVAR_ALIGN))
+#define PRE_IVAR ((struct pre_ivar*)(void*)((char*)self - PRE_IVAR_ALIGN))
 
 static struct {
 	Class isa;
 } alloc_failed_exception;
 static Class autoreleasepool = Nil;

Index: src/objc_properties.m
==================================================================
--- src/objc_properties.m
+++ src/objc_properties.m
@@ -43,11 +43,11 @@
 
 id
 objc_getProperty(id self, SEL _cmd, ptrdiff_t offset, BOOL atomic)
 {
 	if (atomic) {
-		id *ptr = (id*)((char*)self + offset);
+		id *ptr = (id*)(void*)((char*)self + offset);
 #ifdef OF_THREADS
 		unsigned hash = SPINLOCK_HASH(ptr);
 
 		assert(of_spinlock_lock(&spinlocks[hash]));
 
@@ -59,19 +59,19 @@
 #else
 		return [[*ptr retain] autorelease];
 #endif
 	}
 
-	return *(id*)((char*)self + offset);
+	return *(id*)(void*)((char*)self + offset);
 }
 
 void
 objc_setProperty(id self, SEL _cmd, ptrdiff_t offset, id value, BOOL atomic,
     BOOL copy)
 {
 	if (atomic) {
-		id *ptr = (id*)((char*)self + offset);
+		id *ptr = (id*)(void*)((char*)self + offset);
 #ifdef OF_THREADS
 		unsigned hash = SPINLOCK_HASH(ptr);
 
 		assert(of_spinlock_lock(&spinlocks[hash]));
 
@@ -103,11 +103,11 @@
 #endif
 
 		return;
 	}
 
-	id *ptr = (id*)((char*)self + offset);
+	id *ptr = (id*)(void*)((char*)self + offset);
 	id old = *ptr;
 
 	switch (copy) {
 	case 0:
 		*ptr = [value retain];