Steam install

help plz!

localhost frd # emerge games-util/steam-client-meta

* IMPORTANT: 12 news items need reading for repository 'gentoo'.
* Use eselect news read to view new items.

* IMPORTANT: 8 config files in '/etc/portage' need updating.
* See the CONFIGURATION FILES section of the emerge
* man page to learn how to update config files.
Calculating dependencies... done!
[ebuild R ] sys-libs/zlib-1.2.8-r1 USE="-minizip*" ABI_X86="32*"
[ebuild R ] dev-libs/expat-2.1.0-r5 ABI_X86="32*"
[ebuild R ] dev-libs/libffi-3.0.13-r1 ABI_X86="32*"
[ebuild R ] virtual/libffi-3.0.13-r1 ABI_X86="32*"
[ebuild R ] x11-libs/libpciaccess-0.13.4 ABI_X86="32*"
[ebuild N ] media-fonts/font-alias-1.0.3-r1
[ebuild R ] x11-libs/libxshmfence-1.2 ABI_X86="32*"
[ebuild R ] x11-proto/xf86vidmodeproto-2.3.1-r1 ABI_X86="32*"
[ebuild R ] x11-proto/presentproto-1.0 ABI_X86="32*"
[ebuild R ] x11-proto/dri3proto-1.0 ABI_X86="32*"
[ebuild R ] x11-proto/dri2proto-2.8-r1 ABI_X86="32*"
[ebuild R ] x11-proto/xf86driproto-2.1.1-r1 ABI_X86="32*"
[ebuild R ] x11-proto/damageproto-1.2.1-r1 ABI_X86="32*"
[ebuild R ] x11-proto/fixesproto-5.0-r1 ABI_X86="32*"
[ebuild R ] x11-libs/libXfixes-5.0.1 ABI_X86="32*"
[ebuild R ] x11-libs/libdrm-2.4.65 ABI_X86="32*" VIDEO_CARDS="-radeon* -vmware*"
[ebuild N ] media-fonts/font-mutt-misc-1.0.3 USE="X nls"
[ebuild R ] x11-libs/libXxf86vm-1.1.4 ABI_X86="32*"
[ebuild N ] media-fonts/font-bitstream-100dpi-1.0.3 USE="X nls"
[ebuild R ] x11-libs/libXdamage-1.1.4-r1 ABI_X86="32*"
[ebuild R ] x11-proto/glproto-1.4.17-r1 ABI_X86="32*"
[ebuild R ] sys-fs/eudev-3.1.5 USE="introspection*" ABI_X86="32*"
[ebuild R ] virtual/libudev-215-r1 ABI_X86="32*"
[ebuild R ] sys-libs/ncurses-5.9-r5 USE="gpm*" ABI_X86="32*"
[ebuild R ] sys-libs/ncurses-5.9-r99 USE="gpm*" ABI_X86="32*"
[ebuild R ] sys-libs/gpm-1.20.7-r2 ABI_X86="32*"
[ebuild R ] sys-devel/llvm-3.5.0 ABI_X86="32*" VIDEO_CARDS="-radeon*"
[ebuild R ] media-libs/mesa-11.0.6 ABI_X86="32*" VIDEO_CARDS="-radeon* -vmware*"
[ebuild R ] virtual/opengl-7.0-r1 ABI_X86="32*"
[ebuild N ~] games-util/steam-client-meta-0-r20150828 USE="pulseaudio steamruntime -flash -steamfonts -streaming -trayicon" VIDEO_CARDS="intel -nvidia"

!!! Multiple package instances within a single package slot have been pulled
!!! into the dependency graph, resulting in a slot conflict:

sys-libs/zlib:0

(sys-libs/zlib-1.2.8-r1:0/0::gentoo, ebuild scheduled for merge) pulled in by
>=sys-libs/zlib-1.2.8-r1:=[abi_x86_32(-)?,abi_x86_64(-)?,abi_x86_x32(-)?,abi_mips_n32(-)?,abi_mips_n64(-)?,abi_mips_o32(-)?,abi_ppc_32(-)?,abi_ppc_64(-)?,abi_s390_32(-)?,abi_s390_64(-)?] required by (x11-libs/libpciaccess-0.13.4:0/0::gentoo, ebuild scheduled for merge)

(sys-libs/zlib-1.2.8-r1:0/0::gentoo, installed) pulled in by
>=sys-libs/zlib-1.2.5.1-r2:0[minizip] required by (dev-lang/R-3.2.2:0/0::gentoo, installed)
^^^^^^^
sys-libs/zlib:=[minizip] required by (www-client/chromium-49.0.2623.108:0/0::gentoo, installed)
^^^^^^^
sys-libs/zlib:0/0=[minizip] required by (www-client/chromium-49.0.2623.108:0/0::gentoo, installed)
^^^^^^^
>=sys-libs/zlib-1.2.5.1-r2:0[minizip] required by (media-video/vlc-2.2.1-r1:0/5-8::gentoo, installed)
^^^^^^^

It might be possible to solve this slot collision
by applying all of the following changes:
- sys-libs/zlib-1.2.8-r1 (Change USE: +minizip)

The following keyword changes are necessary to proceed:
(see "package.accept_keywords" in the portage(5) man page for more details)
# required by games-util/steam-client-meta (argument)
=games-util/steam-client-meta-0-r20150828 ~amd64

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.