Index: libcfa/src/concurrency/clib/cfathread.cfa
===================================================================
--- libcfa/src/concurrency/clib/cfathread.cfa	(revision 3bd42934fbf4ba05e9dab064fea3471e9f86f8d2)
+++ libcfa/src/concurrency/clib/cfathread.cfa	(revision 5c04e829e26d10e1f249a5a93e00eace2074d254)
@@ -243,5 +243,5 @@
 	// Mutex
 	struct cfathread_mutex {
-		single_acquisition_lock impl;
+		fast_lock impl;
 	};
 	int cfathread_mutex_init(cfathread_mutex_t *restrict mut, const cfathread_mutexattr_t *restrict) __attribute__((nonnull (1))) { *mut = new(); return 0; }
@@ -258,5 +258,5 @@
 	// Condition
 	struct cfathread_condition {
-		condition_variable(single_acquisition_lock) impl;
+		condition_variable(fast_lock) impl;
 	};
 	int cfathread_cond_init(cfathread_cond_t *restrict cond, const cfathread_condattr_t *restrict) __attribute__((nonnull (1))) { *cond = new(); return 0; }