The QPainterPath type lives in it's own header file now STEPS TO REPRODUCE 1. cmake 2. make OBSERVED RESULT /build/trojita/src/trojita-0.7/src/Gui/Window.cpp:981:26: error: aggregate ‘QPainterPath path’ has incomplete type and cannot be defined SOFTWARE/OS VERSIONS Archlinux/Archlinux32: https://bugs.archlinux32.org/index.php?do=details&task_id=146 Qt Version: 5.15.2 Adding #include <QPainterPath> did it for me.
Fixed in 2869c385e72932cbed7398742b8a4d5e3feda765 already