[pacman-dev] _alpm_list_add_first

Hi! In many cases we use alpm_list as a "stack", or we just use it as a set. In these cases an O(1) _alpm_list_add_first function would be more efficient (which add the new member as a first element) than the O(n) _alpm_list_add. Mostly in time "critical" parts (see my favorite sortbydeps function for example;-). Bye, ngaba