$ emerge --info =qtwebkit-5.2.0_beta1
Portage 2.2.7 (default/linux/amd64/13.0/desktop/kde, gcc-4.7.3, glibc-2.15-r3, 3.11.6-gentoo x86_64)
=================================================================
                         System Settings
=================================================================
System uname: Linux-3.11.6-gentoo-x86_64-AMD_A8-4500M_APU_with_Radeon-tm-_HD_Graphics-with-gentoo-2.2
KiB Mem:     3391096 total,    271252 free
KiB Swap:    8388604 total,   7265392 free
Timestamp of tree: Sat, 26 Oct 2013 01:45:01 +0000
ld GNU ld (GNU Binutils) 2.23.1
ccache version 3.1.9 [enabled]
app-shells/bash:          4.2_p45
dev-java/java-config:     2.1.12-r1
dev-lang/python:          2.7.5-r3, 3.2.5-r3
dev-util/ccache:          3.1.9
dev-util/cmake:           2.8.11.2
dev-util/pkgconfig:       0.28
sys-apps/baselayout:      2.2
sys-apps/openrc:          0.12.2
sys-apps/sandbox:         2.6-r1
sys-devel/autoconf:       2.13, 2.69
sys-devel/automake:       1.11.6, 1.12.6, 1.13.4
sys-devel/binutils:       2.23.1
sys-devel/gcc:            4.7.3-r1
sys-devel/gcc-config:     1.7.3
sys-devel/libtool:        2.4.2
sys-devel/make:           3.82-r4
sys-kernel/linux-headers: 3.9 (virtual/os-headers)
sys-libs/glibc:           2.15-r3
Repositories: gentoo bitcoin gentoo-haskell java qt hasufell TomWij science mine tbc
Installed sets: @myset-claws, @myset-fonts, @myset-octave, @myset-pidgin, @myset-snort, @myset-xmonad
ACCEPT_KEYWORDS="amd64"
ACCEPT_LICENSE="*"
CBUILD="x86_64-pc-linux-gnu"
CFLAGS="-march=native -O2 -pipe"
CHOST="x86_64-pc-linux-gnu"
CONFIG_PROTECT="/etc /usr/share/config /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/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=native -O2 -pipe"
DISTDIR="/usr/portage/distfiles"
EMERGE_DEFAULT_OPTS="--jobs=6 --load-average=5 --keep-going"
FCFLAGS="-O2 -pipe"
FEATURES="assume-digests binpkg-logs candy ccache 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 webrsync-gpg"
FFLAGS="-O2 -pipe"
GENTOO_MIRRORS="http://mirror.opteamax.de/gentoo/ ftp://tux.rainside.sk/gentoo/ http://ftp-stud.hs-esslingen.de/pub/Mirrors/gentoo/ rsync://mirror.opteamax.de/gentoo/ ftp://gentoo.c3sl.ufpr.br/gentoo/"
LANG="de"
LC_ALL="de_DE.UTF-8"
LDFLAGS="-Wl,-O1 -Wl,--as-needed"
MAKEOPTS="-j5 --load-average=5"
PKGDIR="/usr/portage/packages"
PORTAGE_CONFIGROOT="/"
PORTAGE_RSYNC_EXTRA_OPTS="--delete-after"
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"
PORTDIR_OVERLAY="/usr/portage/local/layman/bitcoin /usr/portage/local/layman/haskell /usr/portage/local/layman/java /usr/portage/local/layman/qt /usr/portage/local/layman/hasufell /usr/portage/local/layman/TomWij /usr/portage/local/layman/science /usr/portage/local/mine /usr/portage/local/layman/tbc"
SYNC="rsync://rsync.de.gentoo.org/gentoo-portage"
USE="256-color 3dnow 3dnowext 64bit X a52 aac aacplus aalib accessibility acl acpi ads alsa amd64 amr aotuv apng archive assistant autotrace avx bash-completion berkdb bittorrent blink blksha1 bluetooth bluray boost branding bzip2 c++0x cairo calendar caps cblas-external cdda cddax cdr cg chappa clamdtop clang cleartype cli color consolekit corefonts cracklib crypt css cups curl cxx data dbus dcc_video dcc_voice declarative device-mapper dga dhcpcd dia dillo dirac directfb disk-partition djbfft djvu dlz dos double-precision dri dts dvd dvdr dynamicplugin egl eigen emboss enca encode examples exif faac fam fat fbcon ffmpeg fftw findbugs firefox flac fluidsynth focused-urgency font-styles fontconfig foomaticdb fortran fpx freeimage frei0r fribidi ftp fuse g3dvl gajim gallium gbm gd gdata gdbm geoip ggi gif gimp git glamor gles gles1 gles2 glew glitz gmail gmp gnuplot gnutls go gost gpg gphoto2 gpm graphite graphviz gre gs gsl gstreamer gtk gtk2 gtkstyle gudev gui hddtemp hdri help helpers highlight hoogle hpn hwdb hyperestraier iconv icu id3tag idn imap inkjar inotify introspection iostats ipp ipv6 iso14755 jabber jadetex java java6 javascript jbig jingle jpeg jpeg2k kde kdepim keymap kipi kpathsea ladspa laptop latex lcms ldap libass libcaca libcanberra libguess libindicate libkms libnotify libv4l libv4l2 live lm_sensors lock lyrics lzma lzo mad manual maps marble matroska mercurial midi mime minizip mjpeg mmap mmx mmxext mng modules mousewheel mp2 mp3 mp4 mpeg mplayer msn mudflap multilib music mysql ncat ncurses ndiff network nls nmap-update nntp nodrm notification nping nptl nsplugin ntfs ntp nut ocr octave offensive offlinehelp ogg okteta opencl openexr opengl opengtl openmp openssl openvg optimization osmesa otr pam pango parcheck passfile pch pcre pcre16 pdf pdfimport perl pgp phonon php plasma png policykit pop postscript ppds prediction profile python qt3support qt4 qthelp quicktime r600-llvm-compiler rar raw rdesktop readline reencrypt reiser4 reiserfs rpc rss rtc rtmp samba sasl savedconfig schroedinger script scripts sdl secure-delete semantic-desktop session sidebar silc skins skype smime smp smtp sound speex spell sql sqlite sse sse2 sse3 sse4 sse41 sse4_1 sse4a ssh ssl ssse3 startup-notification stk strong-optimization subtitles subversion svg symlink system-boost system-cairo system-cxx-headers system-ffmpeg system-jpeg system-sqlite t1lib tables tcpd templates theora thinkpad threaded threads thunar tidy tiff timezone timidity tor tor-hardening transparent-proxy trayicon truetype twolame udev udisks unicode unlock-notify upcall upnp upower urandom usb v4l v4l2 vaapi vcd vdpau vf-dlopen video videos vim-pager vim-syntax vim-with-x vnc vorbis vpx vst wayland wcwidth weather-metar weather-xoap webgl webkit webp wifi winbind winpopup wma wmf word-perfect wps wxwidgets x264 xa xanim xcb xcomposite xfce xfs xft xhtml xinerama xkb xml xorg xosd xpfast xpm xpsmall xscreensaver xv xvfb xvid xvmc yahoo zip zlib" ABI_X86="64" ALSA_CARDS="ca0106" 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 author" 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="synaptics evdev" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LIBREOFFICE_EXTENSIONS="presenter-console presenter-minimizer" LINGUAS="de en fr ru" OFFICE_IMPLEMENTATION="libreoffice" PHP_TARGETS="php5-5" PYTHON_SINGLE_TARGET="python2_7" PYTHON_TARGETS="python2_7 python3_2" RUBY_TARGETS="ruby18 ruby19 ruby20" USERLAND="GNU" VIDEO_CARDS="radeon r600" 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, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, USE_PYTHON