qemu can't be built with some compilers (gcc 4), but I can't set it on the
command-line with "CC=gcc-3.3.6 emerge qemu-softmmu".
# emerge --info
Portage 2.1_pre10-r3 (default-linux/x86/2006.0, gcc-4.0.2, glibc-2.4-r1,
2.6.15.6 i686)
=================================================================
System uname: 2.6.15.6 i686 AMD Athlon(tm) MP 2400+
Gentoo Base System version 1.12.0_pre19
distcc 2.18.3 i686-pc-linux-gnu (protocols 1 and 2) (default port 3632)
[disabled]
ccache version 2.4 [disabled]
dev-lang/python: 2.4.3-r1
dev-python/pycrypto: 2.0.1-r5
dev-util/ccache: 2.4-r1
dev-util/confcache: 0.4.2
sys-apps/sandbox: 1.2.18
sys-devel/autoconf: 2.13, 2.59-r7
sys-devel/automake: 1.4_p6, 1.5, 1.6.3, 1.7.9-r1, 1.8.5-r3, 1.9.6-r2
sys-devel/binutils: 2.16.1-r2
sys-devel/libtool: 1.5.22
virtual/os-headers: 2.6.11-r5
ACCEPT_KEYWORDS="x86 ~x86"
AUTOCLEAN="yes"
CBUILD="i686-pc-linux-gnu"
CFLAGS="-Os -mtune=athlon-mp -march=athlon-mp -pipe -fomit-frame-pointer
-ftree-vectorize"
CHOST="i686-pc-linux-gnu"
CONFIG_PROTECT="/etc /usr/kde/2/share/config /usr/kde/3.5/env
/usr/kde/3.5/share/config /usr/kde/3.5/shutdown /usr/kde/3/share/config
/usr/lib/mozilla/defaults/pref /usr/share/X11/xkb /usr/share/config
/var/qmail/control"
CONFIG_PROTECT_MASK="/etc/eselect/compiler /etc/gconf /etc/revdep-rebuild
/etc/terminfo /etc/texmf/web2c /etc/env.d"
CXXFLAGS="-Os -mtune=athlon-mp -march=athlon-mp -pipe -fomit-frame-pointer
-ftree-vectorize -finline-functions"
DISTDIR="/usr/portage/distfiles"
FEATURES="autoconfig buildsyspkg collision-protect confcache distlocks
metadata-transfer parallel-fetch sandbox sfperms"
GENTOO_MIRRORS="http://ftp.belnet.be/mirror/rsync.gentoo.org/gentoo/"
LANG="fr_FR@euro"
LC_ALL="fr_FR@euro"
LINGUAS="fr"
MAKEOPTS="-j 3"
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'"
PORTAGE_TMPDIR="/var/tmp"
PORTDIR="/usr/portage"
PORTDIR_OVERLAY="/usr/local/overlays/portage /usr/local/overlays/xgl-overlay"
SYNC="rsync://rsync.de.gentoo.org/gentoo-portage"
USE="x86 3dnow 3dnowext X a52 aac alsa apm avi berkdb bitmap-fonts bzip2 cairo
cdparanoia cdr cli crypt cups curl dbus dlloader dri dts dvd dvdr dvdread eds
emboss encode ext2 ext3 fat ffmpeg firefox flac foomaticdb gcj gdbm gif glitz
gnome gnutls gpm gstreamer gtk gtk2 hal imagemagick imlib ipv6 isdnlog jikes
jpeg libg++ libwww lzo mad matroska mikmod mmx mmxext mng motif mp3 mp4 mpeg
ncurses nls nptl nptlonly ntfs nvidia ogg openal opengl pam pcre pdflib perl
pic pie png pppd python qt qt4 quicktime readline reflection reiser4 reiserfs
samba sdl session slang smp spell spl sse ssl svg tcpd tga theora threads
truetype truetype-fonts type1-fonts udev usb userlocales v4l v4l2 vorbis
win32codecs x264 xinerama xml xml2 xorg xrandr xv xvid zlib elibc_glibc
input_devices_evdev input_devices_joystick input_devices_keyboard
input_devices_mouse kernel_linux linguas_fr userland_GNU video_cards_nv
video_cards_nvidia video_cards_vesa video_cards_vga video_cards_v4l"
Unset: ASFLAGS, CTARGET, EMERGE_DEFAULT_OPTS, INSTALL_MASK, LDFLAGS,
PORTAGE_RSYNC_EXTRA_OPTS
