ospf ecmp implementation - what to do?

hi all, i want to have multipath support in bird. but as in 1.0.9 it isn't. so i read the source an find in proto/ospf/rt.c a comment that say: /* ... we don't support multiple next hops. */ /* I'll start as soon as nest will */ so i looked at the core of bird called nest. but unfortunately it is not clear to me where to start. i think support has to go to nest/rt-table.c but if someone would give me some advise what has to be done exactly that would be very nice. what do you think how complicated is it to implement multipath functionality in bird? thanks birger