Enables KDE_INSTALL_USE_QT_SYS_PATHS if CMAKE_INSTALL_PREFIX Qt5 prefix

Make Qt and ECM-based projects use the same directory sctructure (i.e.
where plugins are, libs, etc.) by default. Otherwise it creates a tiny mess
that might be controlled but usually won't.

In the end, otherwise, people need to keep adapting their systems with
environment variables anyway. All distros end up setting always this
setting as ON, as well as brave developers who don't have separate prefixes
for Qt and KDE.

REVIEW: 127169

0 files changed, 0 insertions, 0 deletions