Linux
After using QFileDialog, you may experience an infinite error message loop
when quitting EQL5.
The SIGSEGV happens in QIcon::~QIcon(), and is therefore neither the fault
of ECL nor EQL5.
(It seems to be related to Gtk/Themes.)
A drastic measure against this annoying behaviour is calling abort() instead
of exit() by using:
(eql:qquit -1) ; negative exit status
which would be :abort or :qa directly on the top-level.