head              478 gc/gcc_support.c     QueueElem* head = q->next;
head              481 gc/gcc_support.c     q->next = head->next;
head              482 gc/gcc_support.c     head->next = q;}
head              489 gc/gcc_support.c     QueueElem* head = (QueueElem*) h;
head              504 gc/gcc_support.c     QueueElem* head = (QueueElem*) h;
head              505 gc/gcc_support.c     QueueElem* q = head->next;
head              510 gc/gcc_support.c         head->next = q->next;