According to https://w1.fi/cgit/hostap/commit/?id=8d2ed87d82dd76a8d32227c6b39e1e8e9db7efea wpa_gui should now also compile and run with Qt5. So the ebuild should be enhanced to utilize the qt5 use flag. Reproducible: Always
Hey that's my commit you've pasted there :-P Added support in the ebuild per your request: https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=c9af05c10f41da787179e10a999d452956af0323