Merge topic 'FindPkgConfig-LIBRARY_PATH' into release-3.23 11c8da94d4 FindPkgConfig: Fix preservation of ENV{PKG_CONFIG_ALLOW_SYSTEM_LIBS} Acked-by: Kitware Robot <kwrobot@kitware.com> Acked-by: buildbot <buildbot@kitware.com> Merge-request: !7258