The default installation path for QPA plugins is appended to
QT_QPA_PLATFORM_PLUGIN_PATH, making it unnecessary to wrap some applications and
preventing applications from loading platform plugins from the wrong Qt version.
(this is reapplying 6b1957d17a, which got
lost in a merge)
Including apple_sdk.sdk is generally a recipe for a bad time on LLVM 3.8
and above, since you end up with bad headers in the wrong place that hurt
the new libc++ in 3.8 and above. In this case, qt only wanted the super-
generic SDK for CUPS headers, which we can just depend on directly now.
Including apple_sdk.sdk is generally a recipe for a bad time on LLVM 3.8
and above, since you end up with bad headers in the wrong place that hurt
the new libc++ in 3.8 and above. In this case, qt only wanted the super-
generic SDK for CUPS headers, which we can just depend on directly now.
So that pkg-config can be used to find 'moc' etc. (Currently it points
to a non-existing path.)
Fixes#22945 ('Linux kbuild incompatible with "nix-shell -p qt5.full"').
