bti

emerge  --info
Portage 2.2.0_alpha155 (default/linux/amd64/13.0/desktop/gnome, gcc-4.7.2, glibc-2.15-r3, 3.7.1-gentoo x86_64)
=================================================================
System uname: Linux-3.7.1-gentoo-x86_64-Intel-R-_Core-TM-_i7-2700K_CPU_@_3.50GHz-with-gentoo-2.1
KiB Mem:    16402344 total,   2764568 free
KiB Swap:    4000180 total,   3849380 free
Timestamp of tree: Tue, 12 Mar 2013 06:30:01 +0000
ld GNU ld (GNU Binutils) 2.22
ccache version 3.1.9 [enabled]
app-shells/bash:          4.2_p37
dev-java/java-config:     2.1.10
dev-lang/python:          2.7.3-r2, 3.2.3
dev-util/ccache:          3.1.9
dev-util/cmake:           2.8.9
dev-util/pkgconfig:       0.28
sys-apps/baselayout:      2.1-r1
sys-apps/openrc:          0.11.8
sys-apps/sandbox:         2.5
sys-devel/autoconf:       2.13, 2.69
sys-devel/automake:       1.9.6-r3, 1.10.3, 1.11.6
sys-devel/binutils:       2.22-r1
sys-devel/gcc:            4.7.2-r1
sys-devel/gcc-config:     1.7.3
sys-devel/libtool:        2.4-r1
sys-devel/make:           3.82-r4
sys-kernel/linux-headers: 3.6 (virtual/os-headers)
sys-libs/glibc:           2.15-r3
Repositories: gentoo local gamerlay ephemeral
ACCEPT_KEYWORDS="amd64"
ACCEPT_LICENSE="* -@EULA PUEL AdobeFlash-10.1 AdobeFlash-10.3 AdobeFlash-11.x skype-eula dlj-1.1 googleearth google-chrome Oracle-BCLA-JavaSE"
CBUILD="x86_64-pc-linux-gnu"
CFLAGS="-march=native -O2 -pipe"
CHOST="x86_64-pc-linux-gnu"
CONFIG_PROTECT="/etc /usr/share/gnupg/qualified.txt"
CONFIG_PROTECT_MASK="${EPREFIX}/etc/gconf /etc/ca-certificates.conf /etc/dconf /etc/env.d /etc/env.d/java/ /etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release /etc/php/apache2-php5.3/ext-active/ /etc/php/apache2-php5.4/ext-active/ /etc/php/cgi-php5.3/ext-active/ /etc/php/cgi-php5.4/ext-active/ /etc/php/cli-php5.3/ext-active/ /etc/php/cli-php5.4/ext-active/ /etc/revdep-rebuild /etc/sandbox.d /etc/terminfo"
CXXFLAGS="-march=native -O2 -pipe"
DISTDIR="/usr/portage/distfiles"
EMERGE_DEFAULT_OPTS="--jobs --autounmask-write --autounmask-keep-masks --keep-going --load-average=8"
FCFLAGS="-O2 -pipe"
FEATURES="assume-digests binpkg-logs ccache distlocks ebuild-locks fixlafiles merge-sync metadata-transfer news parallel-fetch preserve-libs protect-owned sandbox sfperms strict unknown-features-warn unmerge-logs unmerge-orphans userfetch"
FFLAGS="-O2 -pipe"
GENTOO_MIRRORS="http://mirror.yandex.ru/gentoo-distfiles/ ftp://mirror.yandex.ru/gentoo-distfiles/ http://mirrors.kernel.org/gentoo/distfiles/"
LC_ALL="ru_RU.UTF-8"
LDFLAGS="-Wl,-O1 -Wl,--as-needed"
MAKEOPTS="-j9"
PKGDIR="/usr/portage/packages"
PORTAGE_CONFIGROOT="/"
PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --compress --force --whole-file --delete --stats --human-readable --timeout=180 --exclude=/distfiles --exclude=/local --exclude=/packages"
PORTAGE_TMPDIR="/var/tmp"
PORTDIR="/usr/portage"
PORTDIR_OVERLAY="/usr/local/portage /var/lib/layman/gamerlay /var/lib/layman/ephemeral"
SYNC="rsync://rsync.gentoo.org/gentoo-portage"
USE="X a52 aac acl acpi alsa amd64 bash-completion bashlogger berkdb bluetooth branding bzip2 cairo caps cdr cleartype cli colord consolekit cracklib crypt cups custom-optimization cxx dbus device-mapper disk-partition djvu dri dri2 dts dvd dvdr emboss encode exif extras fam ffmpeg firefox flac fontconfig fortran fuse gdbm gdu gif gnome gnome-keyring gnome-online-accounts gpm gstreamer gtk iconv icu ipv6 jpeg jpeg2k lame lcms libnotify lua lzma mmx mng modules mp3 mp4 mpeg mudflap multilib nautilus ncurses nls nptl ogg opengl openmp pam pango pch pcre pdf png policykit qt4 readline samba session smbsharemodes socialweb sqlite sse sse2 ssl ssse3 startup-notification svg tcpd threads tiff truetype udev udisks unicode upower usb vdpau video vorbis wmf x264 xcb xcomposite xml xv xvid zlib" ABI_X86="64" ALSA_CARDS="hda-intel" ALSA_PCM_PLUGINS="adpcm alaw asym copy dmix dshare dsnoop empty extplug file hooks iec958 ioplug ladspa lfloat linear meter mmap_emul mulaw multi null plug rate route share shm softvol" APACHE2_MODULES="authn_core authz_core socache_shmcb unixd actions alias auth_basic authn_alias authn_anon authn_dbm authn_default authn_file authz_dbm authz_default authz_groupfile authz_host authz_owner authz_user autoindex cache cgi cgid dav dav_fs dav_lock deflate dir disk_cache env expires ext_filter file_cache filter headers include info log_config logio mem_cache mime mime_magic negotiation rewrite setenvif speling status unique_id userdir usertrack vhost_alias" CALLIGRA_FEATURES="kexi words flow plan sheets stage tables krita karbon braindump" CAMERAS="ptp2" COLLECTD_PLUGINS="df interface irq load memory rrdtool swap syslog" ELIBC="glibc" GPSD_PROTOCOLS="ashtech aivdm earthmate evermore fv18 garmin garmintxt gpsclock itrax mtk3301 nmea ntrip navcom oceanserver oldstyle oncore rtcm104v2 rtcm104v3 sirf superstar2 timing tsip tripmate tnt ubx" INPUT_DEVICES="evdev" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LIBREOFFICE_EXTENSIONS="presenter-console presenter-minimizer" LINGUAS="en ru" PHP_TARGETS="php5-3" PYTHON_SINGLE_TARGET="python2_7" PYTHON_TARGETS="python2_7 python3_2" RUBY_TARGETS="ruby18 ruby19" USERLAND="GNU" VIDEO_CARDS="nvidia" XTABLES_ADDONS="quota2 psd pknock lscan length2 ipv4options ipset ipp2p iface geoip fuzzy condition tee tarpit sysrq steal rawnat logmark ipmark dhcpmac delude chaos account"
Unset:  CPPFLAGS, CTARGET, INSTALL_MASK, LANG, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS, USE_PYTHON






emerge -pv =libsdl-2.0.0_pre6963-r1

These are the packages that would be merged, in order:

Calculating dependencies... done!
[ebuild   R   ~] media-libs/libsdl-2.0.0_pre6963-r1:2::gamerlay  USE="X alsa asm mmx opengl sse sse2 threads video -3dnow (-altivec) (-aqua) -fusionsound -gles -nas -oss -pulseaudio -static-libs -tslib -xinerama -xscreensaver" ABI_X86="32 (64) (-x32)" 0 kB