diff --git a/ChangeLog b/ChangeLog
index 8f6695b877..a895a00734 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+2010-01-17  Samuel Thibault  <samuel.thibault@ens-lyon.org>
+
+	* sysdeps/mach/hurd/bits/libc-lock.h
+	(__rtld_lock_recursive_t): New type.
+	(__rtld_lock_initialize): New macro.
+
 2010-01-14  Ryan S. Arnold  <rsa@us.ibm.com>
 
 	* sysdeps/powerpc/powerpc32/cell/memcpy.S: New file.
diff --git a/sysdeps/mach/hurd/bits/libc-lock.h b/sysdeps/mach/hurd/bits/libc-lock.h
index 0fa90bcc3e..90e46e02f6 100644
--- a/sysdeps/mach/hurd/bits/libc-lock.h
+++ b/sysdeps/mach/hurd/bits/libc-lock.h
@@ -31,6 +31,7 @@ typedef struct
   void *owner;
   int count;
 } __libc_lock_recursive_t;
+typedef __libc_lock_recursive_t __rtld_lock_recursive_t;
 
 #define __libc_lock_owner_self() ((void *) __hurd_threadvar_location (0))
 
@@ -121,6 +122,8 @@ typedef struct __libc_lock_recursive_opaque__ __libc_lock_recursive_t;
 
 #define __rtld_lock_init_recursive(NAME) \
   __libc_lock_init_recursive (NAME)
+#define __rtld_lock_initialize(NAME) \
+  (void) ((NAME) = (__rtld_lock_recursive_t) _RTLD_LOCK_RECURSIVE_INITIALIZER)
 #define __rtld_lock_trylock_recursive(NAME) \
   __libc_lock_trylock_recursive (NAME)
 #define __rtld_lock_lock_recursive(NAME) \