In file included from /build/kcoreaddons/src/build/src/lib/pybuild/PyKF5/KCoreAddons/unifiedKCoreAddons.cpp:17:0: /build/kcoreaddons/src/build/src/lib/pybuild/PyKF5/KCoreAddons/sipKCoreAddonsKCompositeJob.cpp: In function 'void* init_type_KCompositeJob(sipSimpleWrapper*, PyObject*, PyObject*, PyObject**, PyObject**, PyObject**)': /build/kcoreaddons/src/build/src/lib/pybuild/PyKF5/KCoreAddons/sipKCoreAddonsKCompositeJob.cpp:1180:45: error: invalid new-expression of abstract class type 'sipKCompositeJob' sipCpp = new sipKCompositeJob(a0); ^
I can't reproduce this with $ g++ --version g++ (Ubuntu 5.4.0-6ubuntu1~16.04.4) 5.4.0 20160609 Copyright (C) 2015 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. and PyQt 5.5.1. Can you revert ECM commit 2e20aeab6e86670a66ff99a7b79120c4004b4d22 and report whether that fixes the problem?
Yes, reverting that commit fixed the build