Describe the Bug

Most linux distros dont ship everything as static libs, On gentoo, you specifically have to specify if you want a package to also build static libs. this if statement should be fixed to include unix builds in cmakelists.txt

https://github.com/LizardByte/Sunshine/blob/master/CMakeLists.txt#L71-L73

This should not just be for apple, but unix based builds as well.

Expected Behavior

Being able to build on systems that dont supply boost libs as static libs

Additional Context

Gentoo doesnt seem to build/install static boost libs, if you change this statement, and build against the shared libs, it builds, and runs fine, if you dont, it wont build at all

Host Operating System

Linux

Operating System Version

Gentoo

Architecture

x86_64

Sunshine Version

Master

GPU Type

Intel/Nvidia

GPU Model

Irrelevant

GPU Driver/Mesa Version

Irrelevant

Capture Method (Linux Only)

No response

Relevant log output

Cmake Fails when looking for static boost libs, on unix/linux when shared lib version is installed, with out also having static lib version.