# emerge --info =net-libs/opal-3.6.8-r1
Portage 2.1.9.25 (default/linux/x86/10.0/desktop/gnome, gcc-4.4.4, glibc-2.11.2-r3, 2.6.35-gentoo-r4 i686)
=================================================================
                        System Settings
=================================================================
System uname: Linux-2.6.35-gentoo-r4-i686-AMD_Athlon-tm-_64_X2_Dual_Core_Processor_4000+-with-gentoo-1.12.14
Timestamp of tree: Thu, 20 Jan 2011 01:45:01 +0000
distcc 3.1 i686-pc-linux-gnu [enabled]
ccache version 2.4 [disabled]
app-shells/bash:     4.1_p7
dev-java/java-config: 1.3.7-r1, 2.1.11-r1
dev-lang/python:     2.4.6, 2.5.4-r4, 2.6.6-r1, 3.1.2-r4
dev-util/ccache:     2.4-r9
dev-util/cmake:      2.8.1-r2
sys-apps/baselayout: 1.12.14-r1
sys-apps/sandbox:    1.6-r2
sys-devel/autoconf:  2.13, 2.65-r1
sys-devel/automake:  1.5, 1.6.3, 1.7.9-r1, 1.8.5-r3, 1.9.6-r2, 1.10.2, 1.11.1
sys-devel/binutils:  2.20.1-r1
sys-devel/gcc:       3.3.6-r3::<unknown repository>, 3.4.6-r2, 4.4.4-r2
sys-devel/gcc-config: 1.4.1
sys-devel/libtool:   2.2.10
sys-devel/make:      3.81-r2
virtual/os-headers:  2.6.30-r1 (sys-kernel/linux-headers)
ACCEPT_KEYWORDS="x86"
ACCEPT_LICENSE="*"
CBUILD="i686-pc-linux-gnu"
CFLAGS="-march=athlon-fx -O3 -pipe -fomit-frame-pointer -w"
CHOST="i686-pc-linux-gnu"
CONFIG_PROTECT="/etc /var/lib/hsqldb"
CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/env.d /etc/env.d/java/ /etc/fonts/fonts.conf /etc/gconf /etc/php/apache2-php5.3/ext-active/ /etc/php/cgi-php5.3/ext-active/ /etc/php/cli-php5.3/ext-active/ /etc/revdep-rebuild /etc/sandbox.d /etc/terminfo"
CXXFLAGS="-march=athlon-fx -O3 -pipe -fomit-frame-pointer -w"
DISTDIR="/usr/portage/distfiles"
FEATURES="assume-digests binpkg-logs collision-protect distcc distlocks fixlafiles fixpackages news parallel-fetch protect-owned sandbox sfperms strict unknown-features-warn unmerge-logs unmerge-orphans userfetch"
GENTOO_MIRRORS="http://mirror.datapipe.net/gentoo http://www.gtlib.gatech.edu/pub/gentoo http://gentoo.chem.wisc.edu/gentoo"
LDFLAGS="-Wl,-O1 -Wl,--as-needed"
LINGUAS="en"
MAKEOPTS="-j6"
PKGDIR="/usr/portage/packages"
PORTAGE_CONFIGROOT="/"
PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --compress --force --whole-file --delete --stats --timeout=180 --exclude=/distfiles --exclude=/local --exclude=/packages"
PORTAGE_TMPDIR="/var/tmp"
PORTDIR="/usr/portage"
PORTDIR_OVERLAY="/usr/local/portage"
SYNC="rsync://rsync21.us.gentoo.org/gentoo-portage"
USE="X a52 aac aalib accessibility acl acpi additions ads aim alsa amr apache2 applet asf autoreplace bash-completion berkdb bootsplash branding bzip2 cairo cdparanoia cdr cdrom chroot cifsupcall cli connectionstatus consolekit cpudetection cracklib crypt cscope cups curl cxx dbus dcraw device-mapper dga dirac disk-partition diskio divx dmx dnd dri dts dvd dvdnav dvdr dvdread eds emboss encode evo evolution exchange exif extensions extrafilters extras faac faad fam fbcon ffmpeg fftw firefox flac fontconfig fortran ftp fts3 fuse gallium gcc4 gd gdbm gdu geoip gif gimp gimpprint glitz gmedia gmp gnome gnome-keyring gnutls gpm groupwise gstreamer gstreamer010 gstreamer08 gtalk gtk gtk2 gzip hal hdri history hvm iconv icq imagemagick imlib ipv6 irc ithreads jabber java javascript jbig jfs jingle jpeg jpeg2k kdexdeltas kdm kerberos koffice-plugin kvm lame laptop lcms ldap libnotify libsamplerate live lm_sensors ltsp lvm lzma lzo mad mikmod mjpeg mmx mmxext mng modules mono mozilla mozsvg mp3 mp4 mpeg mpeg2 mpeg4 mplayer mpm-prefork msn mudflap mysql mythtv nautilus ncurses netmeeting netpbm network networkmanager nls nologin nowlistening nptl nptlonly nsplugin ntfs nuv ogg ooo-kde openexr opengl openmp pam pango parted pcap pcre pdf perl perlsuid php png pnp policykit ppds pppd prediction pulseaudio python qemu qt3support qt4 quicktime raw rdesktop rdesktop-vrdp readline realmedia reiser4 reiserfs remote rtc samba sasl schroedinger sdl server session shaper silc slp sms sndfile snmp sockets spell sqlite sse sse2 ssl startup-notification statistics svg sysfs szip tcpd templates texteffect theora threads tiff transcode truetype type1 udev unicode unzip usb utempter v4l v4l2 vboxwebsrv vhosts videos vim-syntax vim-with-x virtualbox vnc vorbis webkit wifi wmf wmp x264 x86 xcb xcomposite xfs xine xinerama xml xorg xosd xprint xrandr xscreensaver xsettings xulrunner xv xvid xvmc yahoo yv12 zip zlib" ALSA_CARDS="ali5451 als4000 atiixp atiixp-modem bt87x ca0106 cmipci emu10k1 emu10k1x ens1370 ens1371 es1938 es1968 fm801 hda-intel intel8x0 intel8x0m maestro3 trident usb-audio via82xx via82xx-modem ymfpci" 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 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" CAMERAS="canon" 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" LINGUAS="en" PHP_TARGETS="php5-3" QEMU_SOFTMMU_TARGETS="i386 x86_64" QEMU_USER_TARGETS="i386 x86_64" RUBY_TARGETS="ruby18" USERLAND="GNU" VIDEO_CARDS="vesa ati radeon" 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, EMERGE_DEFAULT_OPTS, FFLAGS, INSTALL_MASK, LANG, LC_ALL, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS

amd ~ # emerge -pqv =net-libs/opal-3.6.8-r1
[ebuild     U ] net-libs/opal-3.6.8-r1 [2.2.11] USE="audio%* ffmpeg%* ipv6%* java%* ldap%* plugins%* sip%* ssl%* theora%* video%* x264%* xml%* -capi% -celt% -debug -doc% -dtmf% -examples% -fax% -h224% -h281% -h323% -iax% -ivr% -ixj% -lid% -sbc% -sipim% -srtp% -stats% -swig% -vpb% -vxml% -wav% -x264-static% (-noaudio%) (-novideo%)"