New comment by classabbyamp on void-packages repository

https://github.com/void-linux/void-packages/pull/43981#issuecomment-1556058510

Comment:
> Before this change, cmake and pkg-config couldn't find the library.

generally you can do something like `-Dpybind11_DIR=${XBPS_CROSS_BASE}/${py3_sitelib}/pybind11/share/cmake/pybind11`