hammer_rterm_rb_cmp
static int hammer_rterm_rb_cmp(hammer_rterm_t rt1, hammer_rterm_t rt2);
RB_PROTOTYPE(hammer_rterm_rb_tree, hammer_rterm, rb_node, hammer_rterm_rb_cmp);
RB_GENERATE(hammer_rterm_rb_tree, hammer_rterm, rb_node, hammer_rterm_rb_cmp);