diff --git a/newlib/ChangeLog b/newlib/ChangeLog
index 8acd7ab79..1d66d47c8 100644
--- a/newlib/ChangeLog
+++ b/newlib/ChangeLog
@@ -1,3 +1,7 @@
+2012-07-16  Ralf Corsépius  <ralf.corsepius@rtems.org>
+
+	* libc/posix/telldir.c: Conditionally build dd_hash_lock.
+
 2012-07-13  Ralf Corsépius  <ralf.corsepius@rtems.org>
 
 	* libc/sys/rtems/machine/_types.h (_ssize_t): Add __ARM_EABI__,
diff --git a/newlib/libc/posix/telldir.c b/newlib/libc/posix/telldir.c
index f2b1c79bd..caac4890b 100644
--- a/newlib/libc/posix/telldir.c
+++ b/newlib/libc/posix/telldir.c
@@ -69,7 +69,10 @@ struct ddloc {
 
 static long	dd_loccnt = 1;	/* Index of entry for sequential readdir's */
 static struct	ddloc *dd_hash[NDIRHASH];   /* Hash list heads for ddlocs */
+
+#ifdef HAVE_DD_LOCK
 __LOCK_INIT(static, dd_hash_lock);
+#endif
 
 /*
  * return a pointer into a directory