https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104964
--- Comment #18 from Sam James <sam at gentoo dot org> --- Thanks. I reported the Qt issue upstream at https://bugreports.qt.io/browse/QTBUG-103782. I've hit the ACL issue independently in Gentoo and will forward that upstream too (https://bugs.gentoo.org/847280).