Hi,
Between Tuesday and Wednesday (Indian time), something(s) went into mainline that is showing me a dramatic decrease in bootstrap times - a c,c++,java bootstrap on i686-pc-linux-gnu now takes 51m for me compared to 65-66m earlier, which is around 20% of savings over the course of a single day! So who do I thank for it? :-)
I do not know if it is entirely because of the patch to build libjava one-directory-at-a-time. If it is, you should thank me :-) for the patch, and rth for reviewing it very quickly.
If you want, you can help by testing the patch for PR17485 against jacks; since a few days, I cannot get jacks to run (but I think it's my fault, not the tree's).
Paolo
