"Seek" package failed download - removed using "make menuconfig" to de-select it.
"Distribute" package failed compile in parallel make mode, succeeded in single.
Thank you cydergoth. Using a 64 bit box is not supported. It's known to work (my pc is 64 bit and I do all the development on it) but we don't support it: making everyone use the same setup gives everyone the best chances to succeed.
As for the missing package, it may happen. Only possible solution is to wait until upstream site becomes available once more or, as you did, remove the package from the list.
That's also why the build script tries to keep all the downloaded packages into DL folder.