实践验证Idea Jetbrains开发IDE可以在Xfce环境使用（虽然官方只说明支持Gnome和KDE）
emerge --ask --depclean kde-base/kdelibs $(qlist -IC 'kde-base/*') $(for name in $(qlist -IC | grep -v '^kde-base/') ; do ( qdepends -C $name | grep -q kdelibs ) && echo $name ; done)
emerge --unmerge kde-plasma/plasma-desktop
emerge --unmerge kde-plasma/plasma-meta
emerge --unmerge @kde-frameworks
emerge --unmerge app-i18n/fcitx-qt5 app-i18n/fcitx
emerge --unmerge dev-qt/qt-meta dev-qt/qtopengl
emerge --unmerge kde-base/kdelibs kde-apps/khelpcenter
emerge --unmerge kde-apps/konsole kde-apps/dolphin kde-apps/kate kde-base/kactivities dev-qt/qtdeclarative calligra goldendict kdevelop-live
emerge --unmerge kde-apps/kdeadmin-meta kde-apps/kdeartwork-meta kde-apps/kdesdk-meta kde-plasma/powerdevil sys-power/upower-pm-utils
CFLAGS="-march=native -O2 -pipe"
CXXFLAGS="${CFLAGS}"
CHOST="x86_64-pc-linux-gnu"
MAKEOPTS="-j5"
FEATURES="parallel-fetch"
FEATURES="ccache parallel-fetch"
CCACHE_SIZE="16G"
#USE="-ipv6 -fortran -qt3 -qt4 -arts -gnome -cups -multilib -X qt5 dbus wayland threads mmx mmxext sse sse2 ssse3 png xcb jpeg opengl dri sna udev alsa"
USE="-ipv6 -fortran -arts -gnome -cups -qt3 -qt4 -qt5 -kde threads icu dbus hal X mmx mmxext sse sse2 ssse3 png xcb jpeg opengl dri sna udev alsa"
# x11-wm/awesome need png xcb
# Intel Video recommand "opengl dri sna udev"
CONFIG_PROTECT="-*"
ACCEPT_KEYWORDS="~amd64"
PORTDIR="/usr/portage"
DISTDIR="${PORTDIR}/distfiles"
PKGDIR="${PORTDIR}/packages"
GENTOO_MIRRORS="http://mirrors.163.com/gentoo/ http://mirrors.xmu.edu.cn/gentoo http://ftp.lecl.net/pub/gentoo/"
INPUT_DEVICES="evdev synaptics"
VIDEO_CARDS="intel i965"
emerge --update --deep --newuse world
emerge --update --deep --newuse --with-bdeps=y @world
emerge --depclean
revdep-rebuild
revdep-rebuild需要安装Gentoolkit