Properly fix CMake warning

Fixes #96 for real.

Finish release 'v0.3-4'

Finish release 'v0.3-3'

Finish release `v0.3-2`

Finish release 0.3-1

Finish release `0.3`

Finish feature 'v0.2-2'

Finish release 'v0.2-1'

Now adds pre-built binaries for CI.

Finish release 'v0.2'

[lib] Use libclang for implicit virtual check

Apparently there is a libclang function for that...