Several packages won't precompile after update

Hi all,

After I updated all packages this morning, several packages (e.g., Gadfly, Optim, KernelDensity) refuse to pre-compile, all giving the following error:

LoadError: UndefVarError: @printf not defined

I deleted the .julia folder, installed the packages afresh, but I’m running into the same problem. Btw, @printf works fine (after running using Printf). Does anyone have an idea what happened?

I had Julia installed from the Arch repositories. I removed that and re-installed from the Julia website, which solved the problem.