I'd like to know which installed packages *actually* depend on one package.I here take webkit-gtk as example current output like this, but in my system, wxGTK does not enable USE=webkit, so it would be a good idea to add one sub-option to hide this? something like --disabled-uses? #equery d webkit-gtk * These packages depend on webkit-gtk: dev-java/swt-4.2-r2 (webkit ? >=net-libs/webkit-gtk-1.2:2) gnome-extra/sushi-3.8.1 (net-libs/webkit-gtk:3[introspection]) gnome-extra/zenity-3.6.0 (webkit ? >=net-libs/webkit-gtk-1.4.0:3) net-libs/gnome-online-accounts-3.6.3 (net-libs/webkit-gtk:3) net-libs/libproxy-0.4.11-r1 (webkit ? >=net-libs/webkit-gtk-1.6:3) www-client/dwb-2013.03.30 (!gtk3 ? >=net-libs/webkit-gtk-1.8.0:2) (gtk3 ? >=net-libs/webkit-gtk-1.8.0:3) x11-libs/wxGTK-2.9.4.1-r1 (webkit ? net-libs/webkit-gtk:2) # equery u x11-libs/wxGTK [ Legend : U - final flag setting for installation] [ : I - package is installed with flag ] [ Colors : set, unset ] * Found these USE flags for x11-libs/wxGTK-2.9.4.1-r1: U I + + X : Add support for X11 - - debug : Enable extra debug codepaths, like asserts and extra output. If you want to get meaningful backtraces see http://www.gentoo.org/proj/en/qa/backtraces.xml + + doc : Add extra documentation (API, Javadoc, etc). It is recommended to enable per package instead of globally - - gnome : Use gnome-base/libgnomeprintui for printing tasks. - - gstreamer : Enable the wxMediaCtrl class for playing audio and video through gstreamer. - - opengl : Add support for OpenGL (3D graphics) - - pch : Enable precompiled header support for faster compilation at the expense of disk space and memory (>=sys-devel/gcc-3.4 only) - - sdl : Use Simple Directmedia Layer (media-libs/libsdl) for audio. - - tiff : Add support for the TIFF image format - - webkit : Add support for the WebKit HTML rendering/layout engine Reproducible: Always