Static musl libc for x86_64 linux

[SebastianMpl]

Hi,
Thank you for your work.
It would be great if you could consider release of privaxy built with static musl libc for the x86_64 linux target. I mean for nogui version:)
Thanks,

[Pierre Barre]

Hi,

This will be a blocker for now: briansmith/ring#713