Packages (e.g., python3-pybind11) that symlink to *.pc files in
/usr/{lib,share}/pkgconfig will have those links overwritten with actual
copies of the files after the hook
common/hooks/post-install/13-pkg-config-clean-xbps-cross-base-ref.sh
attempts to remove $XBPS_CROSS_BASE from paths. This will result in the
new copy containing corrected paths, but the original file remaining
uncorrected.
This was stolen fro @tornaria.
dc44dff8d5