grab some updates from FreeBSD

 http://bugs.gentoo.org/201979

 diff -durN glibc-2.13.orig/misc/sys/queue.h glibc-2.13/misc/sys/queue.h

 diff -durN glibc-2.13.orig/misc/sys/queue.h glibc-2.13/misc/sys/queue.h

 --- glibc-2.13.orig/misc/sys/queue.h	2008-03-05 06:50:30.000000000 +0100

 +++ glibc-2.13/misc/sys/queue.h	2009-11-13 00:49:51.000000000 +0100

 @@ -136,6 +136,11 @@

  		(var);							\

  		(var) = ((var)->field.le_next))

 +#define	LIST_FOREACH_SAFE(var, head, field, tvar)			\

 +	for ((var) = LIST_FIRST((head));				\

 +	    (var) && ((tvar) = LIST_NEXT((var), field), 1);		\

 +	    (var) = (tvar))

 +

  /*

   * List access methods.

   */

 @@ -197,6 +202,16 @@

  #define	SLIST_FOREACH(var, head, field)					\

  	for((var) = (head)->slh_first; (var); (var) = (var)->field.sle_next)

 +#define	SLIST_FOREACH_SAFE(var, head, field, tvar)			\

 +	for ((var) = SLIST_FIRST((head));				\

 +	    (var) && ((tvar) = SLIST_NEXT((var), field), 1);		\

 +	    (var) = (tvar))

 +

 +#define	SLIST_FOREACH_PREVPTR(var, varp, head, field)			\

 +	for ((varp) = &SLIST_FIRST((head));				\

 +	    ((var) = *(varp)) != NULL;					\

 +	    (varp) = &SLIST_NEXT((var), field))

 +

  /*

   * Singly-linked List access methods.

   */

 @@ -242,6 +257,12 @@

  	(head)->stqh_last = &(elm)->field.stqe_next;			\

  } while (/*CONSTCOND*/0)

 +#define	STAILQ_LAST(head, type, field)					\

 +	(STAILQ_EMPTY((head)) ?						\

 +		NULL :							\

 +	        ((struct type *)(void *)				\

 +		((char *)((head)->stqh_last) - __offsetof(struct type, field))))

 +

  #define	STAILQ_INSERT_AFTER(head, listelm, elm, field) do {		\

  	if (((elm)->field.stqe_next = (listelm)->field.stqe_next) == NULL)\

  		(head)->stqh_last = &(elm)->field.stqe_next;		\

 @@ -271,6 +292,11 @@

  		(var);							\

  		(var) = ((var)->field.stqe_next))

 +#define STAILQ_FOREACH_SAFE(var, head, field, tvar)			\

 +	for ((var) = STAILQ_FIRST((head));				\

 +		(var) && ((tvar) = STAILQ_NEXT((var), field), 1);	\

 +		(var) = (tvar))

 +

  #define	STAILQ_CONCAT(head1, head2) do {				\

  	if (!STAILQ_EMPTY((head2))) {					\

  		*(head1)->stqh_last = (head2)->stqh_first;		\

 @@ -437,11 +463,21 @@

  		(var);							\

  		(var) = ((var)->field.tqe_next))

 +#define TAILQ_FOREACH_SAFE(var, head, field, tvar)			\

 +	for ((var) = TAILQ_FIRST((head));				\

 +		(var) && ((tvar) = TAILQ_NEXT((var), field), 1);	\

 +		(var) = (tvar))

 +

  #define	TAILQ_FOREACH_REVERSE(var, head, headname, field)		\

  	for ((var) = (*(((struct headname *)((head)->tqh_last))->tqh_last));	\

  		(var);							\

  		(var) = (*(((struct headname *)((var)->field.tqe_prev))->tqh_last)))

 +#define TAILQ_FOREACH_REVERSE_SAFE(var, head, headname, field, tvar)	\

 +	for ((var) = TAILQ_LAST((head), headname);			\

 +		(var) && ((tvar) = TAILQ_PREV((var), headname, field), 1);	\

 +		(var) = (tvar))

 +

  #define	TAILQ_CONCAT(head1, head2, field) do {				\

  	if (!TAILQ_EMPTY(head2)) {					\

  		*(head1)->tqh_last = (head2)->tqh_first;		\