Index: src/runtime/arc.m
==================================================================
--- src/runtime/arc.m
+++ src/runtime/arc.m
@@ -29,11 +29,11 @@
 struct weak_ref {
 	id **locations;
 	size_t count;
 };
 
-struct objc_hashtable *hashtable;
+static struct objc_hashtable *hashtable;
 #ifdef OF_HAVE_THREADS
 static of_spinlock_t spinlock;
 #endif
 
 static uint32_t

Index: src/runtime/synchronized.m
==================================================================
--- src/runtime/synchronized.m
+++ src/runtime/synchronized.m
@@ -23,11 +23,11 @@
 #import "runtime-private.h"
 
 #ifdef OF_HAVE_THREADS
 # import "threading.h"
 
-struct lock_s {
+static struct lock_s {
 	id	      object;
 	int	      count;
 	of_rmutex_t   rmutex;
 	struct lock_s *next;
 } *locks = NULL;