Multiprocessing in LAPACK is gone

Hello everyone,
I had built my own Julia excutable because I need to install CUDAdrv. But I was probably not aware of the multiprocessing options. Now when I call eigfact(), there is always only one core running, but on my computer I have 8 available.

How can I enforce lapack to exploit all available cores? How to check the multiprocessing functionality in my own build of Julia?