Bugzilla Bug 143804

From /usr/include/linux/compiler.h, line 29:
# define __builtin_warning(x, y...) (1)

This may make sense for the kernel itself, but clearly does not belong in the
headers programs should use, and no installed header file actually uses
__builtin_warning. Would you please consider removing it? (I noticed it when a
non-GCC compiler complained about the syntax used.)

[ebuild   R   ] sys-kernel/linux-headers-2.6.17  USE="-gcc64" 0 kB 

Portage 2.1.1_pre5 (default-linux/x86/2006.0, gcc-4.1.1/vanilla, glibc-2.4-r3,
2.6.17.7 i686)
=================================================================
System uname: 2.6.17.7 i686 AMD Duron(tm) Processor
Gentoo Base System version 1.12.4
Last Sync: Unknown
app-admin/eselect-compiler: 2.0.0_rc2-r1
dev-lang/python:     2.4.3-r1
dev-python/pycrypto: 2.0.1-r5
dev-util/ccache:     [Not Present]
dev-util/confcache:  [Not Present]
sys-apps/sandbox:    1.2.18.1
sys-devel/autoconf:  2.13, 2.60
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:  2.17
sys-devel/gcc-config: [Not Present]
sys-devel/libtool:   1.5.22
virtual/os-headers:  2.6.17
ACCEPT_KEYWORDS="x86 ~x86"
AUTOCLEAN="yes"
CBUILD="i686-pc-linux-gnu"
CFLAGS="-march=athlon-tbird -O3 -pipe -fomit-frame-pointer"
CHOST="i686-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/eselect/compiler /etc/gconf
/etc/revdep-rebuild /etc/terminfo /etc/texmf/web2c"
CXXFLAGS="-march=athlon-tbird -O3 -pipe -fomit-frame-pointer"
DISTDIR="/var/dist"
FEATURES="assume-digests autoconfig autopatch collision-protect cvs distlocks
metadata-transfer notitles parallel-fetch sandbox sfperms sign strict test
userpriv usersandbox"
GENTOO_MIRRORS="http://ftp.easynet.nl/mirror/gentoo"
LANG="en_GB.UTF-8"
LDFLAGS="-Xlinker --as-needed"
LINGUAS="en_GB en"
PKGDIR="/var/pkg"
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="/var/cvs/gentoo-x86"
PORTDIR_OVERLAY="/etc/portage/overlay /etc/portage/overlay/enlightenment"
SYNC="rsync://rsync.nl.gentoo.org/gentoo-portage"
USE="x86 3dnow 3dnowext X alsa bindist cairo cdparanoia cjk cups debugger dri
elibc_glibc ftp gcc-libffi gif gpgme graphviz gtk iconv idn immqt
input_devices_keyboard input_devices_mouse ipv6 ithreads jpeg kdeenablefinal
kdehiddenvisibility kernel_linux linguas_en linguas_en_GB lynxkeymap mbox mmx
mmxext mozdevelop mudflap ncurses nethack nls no-old-linux nocxx nptl nptlonly
offensive ogg opengl pango paste64 pcre pdf perl png ppds qt3 readline rtc sdl
ssl svg tcl test theora truetype unicode userland_GNU video_cards_radeon
vim-pager vorbis win32codecs xim xine xorg"
Unset:  CTARGET, EMERGE_DEFAULT_OPTS, INSTALL_MASK, LC_ALL, MAKEOPTS,
PORTAGE_RSYNC_EXTRA_OPTS

Fixed, thanks!