I just took a look, and it seems as if the Chart::Gnuplot package has native dependencies, and a really messy/stupid config phase… It spits out errors and warnings about missing libs, and instead of giving you a reasonable output about those, it just starts to compile and fails.
Also I see it seems to require qt components. Those are sometimes a bit messy to deal with.
I am not sure if I am able to help from here on.