qt:
compiles+installs+no collisions.
Compiling qt4 apps against it works fine as well.
Portage 2.1.3.19 (default-linux/amd64/2007.0/desktop, gcc-4.1.2,
glibc-2.6.1-r0, 2.6.22-gentoo-r8 x86_64)
=================================================================
System uname: 2.6.22-gentoo-r8 x86_64 AMD Athlon(tm) 64 Processor 3400+
Timestamp of tree: Sun, 11 Nov 2007 01:47:01 +0000
ccache version 2.4 [enabled]
app-shells/bash: 3.2_p17
dev-java/java-config: 1.3.7, 2.0.33-r1
dev-lang/python: 2.4.4-r6
dev-python/pycrypto: 2.0.1-r6
dev-util/ccache: 2.4-r7
sys-apps/baselayout: 1.12.9-r2
sys-apps/sandbox: 1.2.18.1-r2
sys-devel/autoconf: 2.13, 2.61-r1
sys-devel/automake: 1.7.9-r1, 1.8.5-r3, 1.9.6-r2, 1.10
sys-devel/binutils: 2.18-r1
sys-devel/gcc-config: 1.3.16
sys-devel/libtool: 1.5.24
virtual/os-headers: 2.6.22-r2
ACCEPT_KEYWORDS="amd64"
CBUILD="x86_64-pc-linux-gnu"
CFLAGS="-march=athlon64 -O2 -pipe"
CHOST="x86_64-pc-linux-gnu"
CONFIG_PROTECT="/etc /usr/kde/3.5/env /usr/kde/3.5/share/config
/usr/kde/3.5/shutdown /usr/share/X11/xkb /usr/share/config"
CONFIG_PROTECT_MASK="/etc/env.d /etc/env.d/java/ /etc/gconf /etc/revdep-rebuild
/etc/terminfo /etc/udev/rules.d"
CXXFLAGS="-march=athlon64 -O2 -pipe"
DISTDIR="/distfiles"
FEATURES="ccache collision-protect distlocks metadata-transfer multilib-strict
nostrip parallel-fetch sandbox sfperms strict test unmerge-orphans userfetch"
GENTOO_MIRRORS="http://distfiles.gentoo.org
http://distro.ibiblio.org/pub/linux/distributions/gentoo"
MAKEOPTS="-j2"
PKGDIR="/usr/portage/packages"
PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --compress
--force --whole-file --delete --delete-after --stats --timeout=180
--exclude=/distfiles --exclude=/local --exclude=/packages
--filter=H_**/files/digest-*"
PORTAGE_TMPDIR="/var/tmp"
PORTDIR="/usr/portage"
PORTDIR_OVERLAY="/overlay"
SYNC="rsync://kv80/gentoo-portage"
USE="X acl acpi aim alsa amd64 arts bash-completion berkdb bitmap-fonts
branding cairo cli cracklib crypt cups dbus dri dvd dvdread emboss encode esd
evo fam firefox fortran gdbm gif gpm gstreamer hal iconv imap ipv6 isdnlog jpeg
kde kerberos mad midi mikmod mmx mp3 mpeg mqsli mudflap mysql ncurses nls nptl
nptlonly nvidia ogg opengl openmp oss pam pcre pdf perl png pppd python qt3
qt3support quicktime readline reflection sdl session sockets spell spl sqlite3
sse sse2 ssl svg tcpd test tiff truetype truetype-fonts type1-fonts unicode vim
vim-syntax vorbis xcomposite xine xml xorg xv zlib" ALSA_CARDS="ali5451 als4000
atiixp atiixp-modem bt87x ca0106 cmipci 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 mulaw multi
null plug rate route share shm softvol" ELIBC="glibc" INPUT_DEVICES="keyboard
mouse evdev" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780
lb216 lcdm001 mtxorb ncurses text" USERLAND="GNU" VIDEO_CARDS="nvidia"
Unset: CPPFLAGS, CTARGET, EMERGE_DEFAULT_OPTS, INSTALL_MASK, LANG, LC_ALL,
LDFLAGS, LINGUAS, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS,
PORTAGE_RSYNC_EXTRA_OPTS
