At least I know I can do all 60 packages in roughly 6 hours :)
Takes me a little longer with 100 packages. Mostly I only run with Slackware 13.1 32-bit because that is what I use. But when I test a build run for the other two releases, which include 64-bit, that makes for 6 runs times about 7 hours. I have two dual core machines, but only one is configured to build the other 6 runs. There is no way to do any of this fast. :-)
Glad to hear about the 4.7.1 fix. I have to wait until that update arrives for Slackware.
Darrell