bcooksley added a comment.
I still question how these installs conflict - as all the scenarios where they could conflict should already be taken into account: 1. Linux distros, FreeBSD, etc have no co-installability issues here 2. Windows installs should be one prefix per application, which means KF5 and KDE 4 installs should never collide 3. macOS is basically the same as Windows, only difference being it's a .app bundle instead Can you provide some background please Ralf? Note that the CI already has native Umbrello builds for Windows so cross compilation shouldn't be required. REPOSITORY R241 KIO REVISION DETAIL https://phabricator.kde.org/D5175 To: habacker, dfaure, ltoscano, bcooksley Cc: cgiboudeaux, #frameworks