i dont have declare radeon in my make.config. but this package force me to install radeon on my box. Reproducible: Always Actual Results: # emerge --ask --changed-use --deep @world --keep-going * IMPORTANT: 1 news items need reading for repository 'mva'. * IMPORTANT: 9 news items need reading for repository 'gentoo'. * Use eselect news to read news items. These are the packages that would be merged, in order: Calculating dependencies... done! [ebuild R ] sys-devel/llvm-3.3-r1 USE="clang*" VIDEO_CARDS="radeon*" [ebuild N ] sys-devel/clang-3.3-r100 USE="python static-analyzer -debug -multitarget" ABI_X86="32 (64) (-x32)" [ebuild N ] dev-libs/libclc-0.0.1_pre20130819-r1 [ebuild R ] media-libs/mesa-9.2.1 USE="opencl*" The following USE changes are necessary to proceed: (see "package.use" in the portage(5) man page for more details) # required by media-libs/mesa-9.2.1[opencl] # required by x11-base/xorg-server-1.14.3-r2[-minimal] # required by x11-drivers/xf86-video-nouveau-1.0.9 # required by x11-base/xorg-drivers-1.14[video_cards_nouveau] # required by x11-misc/bumblebee-3.2.1 # required by @selected # required by @world (argument) =sys-devel/llvm-3.3-r1 video_cards_radeon Use --autounmask-write to write changes to config files (honoring CONFIG_PROTECT). Carefully examine the list of proposed changes, paying special attention to mask or keyword changes that may expose experimental or unstable packages. TuX cornix # Portage 2.2.7 (default/linux/amd64/13.0/desktop, gcc-4.8.1, glibc-2.17, 3.11.6-gentoo x86_64) ================================================================= System uname: Linux-3.11.6-gentoo-x86_64-Intel-R-_Core-TM-_i7-3740QM_CPU_@_2.70GHz-with-gentoo-2.2 KiB Mem: 24697572 total, 18784752 free KiB Swap: 25081852 total, 25081852 free Timestamp of tree: Wed, 23 Oct 2013 06:30:01 +0000 ld GNU ld (GNU Binutils) 2.23.2 app-shells/bash: 4.2_p45 dev-java/java-config: 2.2.0 dev-lang/python: 2.7.5-r3, 3.2.5-r3, 3.3.2-r2 dev-util/cmake: 2.8.12 dev-util/pkgconfig: 0.28 sys-apps/baselayout: 2.2 sys-apps/openrc: 0.12.3 sys-apps/sandbox: 2.6-r1 sys-devel/autoconf: 2.13, 2.69 sys-devel/automake: 1.11.6, 1.12.6, 1.14 sys-devel/binutils: 2.23.2 sys-devel/gcc: 4.8.1-r1 sys-devel/gcc-config: 1.8 sys-devel/libtool: 2.4.2 sys-devel/make: 3.82-r5::gnome sys-kernel/linux-headers: 3.11 (virtual/os-headers) sys-libs/glibc: 2.17 Repositories: gentoo qt mva gnome luman wavilen lokal ACCEPT_KEYWORDS="amd64 ~amd64" ACCEPT_LICENSE="*" CBUILD="x86_64-pc-linux-gnu" CFLAGS="-march=corei7 -O2 -pipe" CHOST="x86_64-pc-linux-gnu" CONFIG_PROTECT="/etc /etc/X11/Sessions/awesome /etc/X11/Sessions/dwm /etc/conf.d/consolefont /etc/conf.d/hostname /etc/conf.d/hwclock /etc/conf.d/keymaps /etc/default/grub /etc/eix-sync.conf /etc/fstab /etc/hosts /etc/locale.gen /etc/make.conf /etc/timezone /usr/share/gnupg/qualified.txt /var/lib/hsqldb" CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/env.d /etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release /etc/php/apache2-php5.5/ext-active/ /etc/php/cgi-php5.5/ext-active/ /etc/php/cli-php5.5/ext-active/ /etc/revdep-rebuild /etc/sandbox.d /etc/terminfo /etc/texmf/language.dat.d /etc/texmf/language.def.d /etc/texmf/updmap.d /etc/texmf/web2c" CXXFLAGS="-march=corei7 -O2 -pipe" DISTDIR="/usr/portage/distfiles" FCFLAGS="-O2 -pipe" FEATURES="assume-digests binpkg-logs config-protect-if-modified distlocks ebuild-locks fixlafiles merge-sync news parallel-fetch preserve-libs protect-owned sandbox sfperms strict unknown-features-warn unmerge-logs unmerge-orphans userfetch userpriv usersandbox usersync" FFLAGS="-O2 -pipe" GENTOO_MIRRORS="http://distfiles.gentoo.org" LANG="de_DE.UTF-8" LC_ALL="" LDFLAGS="-Wl,-O1 -Wl,--as-needed" MAKEOPTS="-j9" PKGDIR="/usr/portage/packages" PORTAGE_CONFIGROOT="/" PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --omit-dir-times --compress --force --whole-file --delete --stats --human-readable --timeout=180 --exclude=/distfiles --exclude=/local --exclude=/packages" PORTAGE_TMPDIR="/var/tmp" PORTDIR="/usr/portage"
See the output that forces to enable it: > # required by media-libs/mesa-9.2.1[opencl] If you look in the ebuild you will see > opencl? ( >=sys-devel/llvm-3.3-r1[video_cards_radeon,${MULTILIB_USEDEP}] ... ) which means that mesa[opencl] forces llvm[video_cards_radeon]; so, you will want to disable that opencl USE flag on mesa.