Gentoo ~amd64 with last emerge world done with a portage snapshot on ~ 2012-07-14.
$ uname -a
Linux dull 3.0.36-gentoo #2 SMP PREEMPT Fri Jul 13 13:11:00 MST 2012 x86_64 Intel(R) Core(TM) i7 CPU 920 @ 2.67GHz GenuineIntel GNU/Linux
$ lsb_release -a
LSB Version: n/a
Distributor ID: Gentoo
Description: Gentoo Base System release 2.1
Release: 2.1
Codename: n/a
$ sudo emerge --info
Portage 2.1.11.5 (default/linux/amd64/10.0, gcc-4.6.3, glibc-2.15-r2, 3.0.36-gentoo x86_64)
=================================================================
System uname: Linux-3.0.36-gentoo-x86_64-Intel-R-_Core-TM-_i7_CPU_920_@_2.67GHz-with-gentoo-2.1
Timestamp of tree: Sat, 14 Jul 2012 11:00:01 +0000
distcc 3.1 x86_64-pc-linux-gnu [disabled]
ccache version 3.1.7 [enabled]
app-shells/bash: 4.2_p29
dev-java/java-config: 2.1.12
dev-lang/python: 2.7.3-r2, 3.2.3-r1
dev-util/ccache: 3.1.7
dev-util/cmake: 2.8.8-r3
dev-util/pkgconfig: 0.26
sys-apps/baselayout: 2.1-r1
sys-apps/openrc: 0.10.5
sys-apps/sandbox: 2.6
sys-devel/autoconf: 2.13, 2.69
sys-devel/automake: 1.10.3, 1.11.6, 1.12.2
sys-devel/binutils: 2.22-r1
sys-devel/gcc: 4.6.3
sys-devel/gcc-config: 1.7.3
sys-devel/libtool: 2.4.2
sys-devel/make: 3.82-r3
sys-kernel/linux-headers: 3.4-r1 (virtual/os-headers)
sys-libs/glibc: 2.15-r2
Repositories: gentoo
ACCEPT_KEYWORDS="amd64 ~amd64"
ACCEPT_LICENSE="*"
CBUILD="x86_64-pc-linux-gnu"
CFLAGS="-O2 -mtune=native -pipe"
CHOST="x86_64-pc-linux-gnu"
CONFIG_PROTECT="/etc /usr/share/gnupg/qualified.txt /var/bind"
CONFIG_PROTECT_MASK="${EPREFIX}/etc/gconf /etc/bluetooth /etc/ca-certificates.conf /etc/dbus-1 /etc/dconf /etc/env.d /etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release /etc/gtk-2.0 /etc/init.d /etc/kde /etc/mono /etc/pam.d /etc/php/apache2-php5.4/ext-active/ /etc/php/cgi-php5.4/ext-active/ /etc/php/cli-php5.4/ext-active/ /etc/revdep-rebuild /etc/sandbox.d /etc/sound /etc/terminfo /etc/texmf /etc/texmf/language.dat.d /etc/texmf/language.def.d /etc/texmf/updmap.d /etc/texmf/web2c /etc/udev /etc/xdg /usr/share/X11/xkb /usr/share/texmf"
CXXFLAGS="-O2 -pipe"
DISTDIR="/usr/portage/distfiles"
EMERGE_DEFAULT_OPTS="--load-average=8 --jobs=32 --keep-going=y --with-bdeps=y"
FCFLAGS="-O2 -pipe"
FEATURES="assume-digests binpkg-logs ccache config-protect-if-modified distlocks ebuild-locks fail-clean fixlafiles news parallel-fetch parse-eapi-ebuild-head protect-owned sfperms strict suidctl unknown-features-warn unmerge-logs unmerge-orphans userfetch usersync xattr"
FFLAGS="-O2 -pipe"
GENTOO_MIRRORS="http://distfiles.gentoo.org"
LANG="en_US.utf8"
LDFLAGS="-Wl,-O1 -Wl,--as-needed"
LINGUAS="en_US"
MAKEOPTS="-j8"
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/portage"
PORTDIR="/usr/portage"
PORTDIR_OVERLAY=""
SYNC="rsync://rsync.gentoo.org/gentoo-portage"
USE="X \ a52 aac aalib acl acpi alsa amd64 apache2 bash-completion berkdb bluetooth bzip2 cairo cdr cli cracklib crypt cups cxx dbus device-mapper dri dts dv dvd dvdr dvdread encode exif ffmpeg firefox flac fortran galago gdbm gdu gif glitz gmp gnome gpm graphviz gs gtk gtk2 howl iconv imap ipv6 jbig jpeg jpeg2k kpathsea kqemu lame lcms libnotify lzo matroska mbox mjpeg mmx mng modules mono mozilla mozsvg mp3 mplayer mudflap multilib ncurses nls nptl nptlonly nsplugin nvidia offensive ogg opengl openmp pam pcre pdf perl pic png policykit pppd pulseaudio python quicktime readline samba sdl session spell sse sse2 ssl static-libs subtitles svg sysfs tcpd theora tiff truetype udev unicode usb v4l v4l2 vcd vim-with-x vorbis win32codes wmf x264 xattr xcb xinerama xorg xv xvid xvmc zlib" ALSA_CARDS="emu10k1" 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="actions alias asis auth_digest autoindex cache dav deflate dir env expires headers include info log_config logio mime negotiation proxy rewrite setenvif speling status userdir usertrack auth_basic authn_alias authn_anon aut hn_dbd authn_dbm authn_default authn_file authz_dbm authz_default authz_groupfil e authz_host authz_owner authz_user cern_meta charset_lite dav_fs dav_lock dbd d isk_cache dumpio ext_filter file_cache filter ident imagemap log_forensic mem_ca che mime_magic proxy_ajp proxy_balancer proxy_connect proxy_ftp proxy_http uniqu e_id version vhost_alias cgi" APACHE2_MPMS="prefork" 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_US" PHP_TARGETS="php5-3" PYTHON_TARGETS="python3_2 python2_7" RUBY_TARGETS="ruby18 ruby19" USERLAND="GNU" VIDEO_CARDS="nvidia nv" 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, LC_ALL, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS, USE_PYTHON
$ ldd /usr/local/bin/spring | sed -rn "s/.*=> ([^ ]+).*/\1/p"
/usr/lib/gcc/x86_64-pc-linux-gnu/4.6.3/libgomp.so.1
/usr/lib64/libSDL-1.2.so.0
/usr/lib64/libGL.so.1
/usr/lib64/libGLU.so.1
/usr/lib64/libGLEW.so.1.7
/usr/lib64/libfreetype.so.6
/lib64/libz.so.1
/lib64/libbz2.so.1
/usr/lib64/libX11.so.6
/usr/lib64/libXcursor.so.1
/usr/lib64/libIL.so.1
/usr/lib64/libboost_regex-mt-1_49.so.1.49.0
/usr/lib64/libboost_thread-mt-1_49.so.1.49.0
/usr/lib64/libboost_program_options-mt-1_49.so.1.49.0
/usr/lib64/libboost_system-mt-1_49.so.1.49.0
/usr/lib64/libboost_signals-mt-1_49.so.1.49.0
/usr/lib64/libminizip.so.1
/lib64/libdl.so.2
/usr/lib64/libopenal.so.1
/usr/lib64/libogg.so.0
/usr/lib64/libvorbisfile.so.3
/usr/lib64/libvorbis.so.0
/usr/lib/gcc/x86_64-pc-linux-gnu/4.6.3/libstdc++.so.6
/lib64/libm.so.6
/usr/lib/gcc/x86_64-pc-linux-gnu/4.6.3/libgcc_s.so.1
/lib64/libpthread.so.0
/lib64/libc.so.6
/lib64/librt.so.1
/usr/lib64/libasound.so.2
/usr/lib64/libpulse-simple.so.0
/usr/lib64/libpulse.so.0
/usr/lib64/libaa.so.1
/usr/lib64/opengl/nvidia/lib/libnvidia-tls.so.302.17
/usr/lib64/libnvidia-glcore.so.302.17
/usr/lib64/libXext.so.6
/usr/lib64/libxcb.so.1
/usr/lib64/libXrender.so.1
/usr/lib64/libXfixes.so.3
/usr/lib64/libtiff.so.5
/usr/lib64/libpng15.so.15
/usr/lib64/libmng.so.1
/usr/lib64/liblcms.so.1
/usr/lib64/libjasper.so.1
/usr/lib64/libjpeg.so.8
/usr/lib64/libjson.so.0
/usr/lib64/pulseaudio/libpulsecommon-2.0.so
/usr/lib64/libX11-xcb.so.1
/usr/lib64/libICE.so.6
/usr/lib64/libSM.so.6
/usr/lib64/libXtst.so.6
/lib64/libwrap.so.0
/usr/lib64/libsndfile.so.1
/usr/lib64/libFLAC.so.8
/usr/lib64/libvorbisenc.so.2
/usr/lib64/libasyncns.so.0
/usr/lib64/libdbus-1.so.3
/usr/lib64/libgdbm.so.4
/lib64/libcap.so.2
/lib64/libncurses.so.5
/lib64/libgpm.so.1
/usr/lib64/libXau.so.6
/usr/lib64/libXdmcp.so.6
/usr/lib64/libjbig.so
/lib64/libuuid.so.1
/lib64/libresolv.so.2
/lib64/libattr.so.1