IN_NOT           4062 regcomp.c      	if ((state & (IN_ALT | IN_NOT | IN_VAR_REPEAT)) != 0) {
IN_NOT           4109 regcomp.c      	r = setup_tree(an->target, reg, (state | IN_NOT), env);
IN_NOT           4153 regcomp.c      	  r = setup_tree(an->target, reg, (state | IN_NOT), env);