SUMMARY I have number of threads set in my .kdesrc-buildrc: make-options -j4 But still, Qt seem builds with a single thread: Building Qt5 from qt5-set (1/117) Updating Qt5 (to branch 5.14) ... STEPS TO REPRODUCE 1. $ kdesrc-build Qt 2. Note not all CPUs are loaded
*** This bug has been marked as a duplicate of bug 404487 ***