Index: src/runtime/arc.m
==================================================================
--- src/runtime/arc.m
+++ src/runtime/arc.m
@@ -32,11 +32,11 @@
 static struct objc_hashtable *hashtable;
 #ifdef OF_HAVE_THREADS
 static of_spinlock_t spinlock;
 #endif
 
-static unsigned long
+static uint32_t
 hash(const void *object)
 {
 	return (uint32_t)(uintptr_t)object;
 }