Going `${CMAKE_INSTALL_BINDIR}/../` looks weird. Derivations that want them in a non-`out` output can just set the `QMLFILES_DESTINATION` CMake flag as needed.
Co-authored-by: rewine <luhongxu@deepin.org>
We sometimes place QML modules into the bin output of derivations. Using CMAKE_INSTALL_BINDIR and backtracking from it
will ensure that the modules will end up under the bin output prefix, if it is enabled.