On Fri, Mar 9, 2012 at 8:27 AM, Disreali <mdisreali@xxxxxxxxx> wrote: > Well, when Urias and I examined the build output, it looked like the ffmpeg > stuff was being compiled before the package had been downloaded. > > Urias figured that using "-j2" was the cause, and since the build completed > on my third attempt when I did not use it, I thought he was correct. And that confirms what Stephan was saying: even if you're using multiple jobs, the dependencies should prevent jam from issuing a compilation job for something where a dependency hasn't yet finished building/downloading. The implication here is simply that something isn't marked as being dependent where it should be. Regards, Rene