https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71622
--- Comment #8 from Thiago Macieira <thiago at kde dot org> --- cc1plus doesn't stop in gdb, for some reason. Instead, it prints: painting/qdrawhelper.cpp: In function ‘void qt_bitmapblit_quint16(QRasterBuffer*, int, int, const QRgba64&, const uchar*, int, int, int)’: painting/qdrawhelper.cpp:5753:20: internal compiler error: in tree_node_structure_for_code, at tree.c:508 inline static void qt_bitmapblit_quint16(QRasterBuffer *rasterBuffer, ^ Outside of gdb, it prints "Segmentation fault", but doesn't generate a core file nor does systemd-coredump catch this crash, so no postmortem debugging. Any tricks to do that?