Using -ftracer resulted in {standard input}:190: Error: symbol `cl_module__cl_prin_globals__ctorend' is already defined removing it from cflags and cln builds properly emerge --info Portage 2.1_pre4-r1 (default-linux/x86/2005.1, gcc-4.0.3-20060126, glibc-2.3.6-r2, 2.6.15-archck3 i686) ================================================================= System uname: 2.6.15-archck3 i686 Intel(R) Pentium(R) 4 CPU 3.20GHz Gentoo Base System version 1.12.0_pre15 ccache version 2.4 [enabled] dev-lang/python: 2.3.5-r2, 2.4.2-r1 sys-apps/sandbox: 1.2.17 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-r1 sys-devel/binutils: 2.16.1-r1 sys-devel/libtool: 1.5.22 virtual/os-headers: 2.6.11-r3 ACCEPT_KEYWORDS="x86 ~x86" AUTOCLEAN="yes" CBUILD="i686-pc-linux-gnu" CFLAGS="-O2 -march=pentium4 -fomit-frame-pointer -ftracer -pipe" CHOST="i686-pc-linux-gnu" CONFIG_PROTECT="/etc /usr/kde/2/share/config /usr/kde/3/share/config /usr/share/X11/xkb /usr/share/config /var/qmail/control" CONFIG_PROTECT_MASK="/etc/gconf /etc/splash /etc/terminfo /etc/texmf/web2c /etc/env.d" CXXFLAGS="-O2 -march=pentium4 -fomit-frame-pointer -ftracer -pipe -fvisibility-inlines-hidden -Wl,-O1" DISTDIR="/usr/portage/distfiles" FEATURES="autoconfig ccache distlocks sandbox sfperms strict" GENTOO_MIRRORS="http://gentoo.osuosl.org/ http://gentoo.mirrors.pair.com/ http://cudlug.cudenver.edu/gentoo/ http://gentoo.cites.uiuc.edu/pub/gentoo/ http://www.gtlib.gatech.edu/pub/gentoo" LDFLAGS="-Wl,-O1 -Wl,--enable-new-dtags -Wl,--sort-common -s" MAKEOPTS="-j2" PKGDIR="/usr/portage/packages" PORTAGE_TMPDIR="/var/tmp" PORTDIR="/usr/portage" PORTDIR_OVERLAY="/usr/local/portage /usr/local/fluidportage/trunk" SYNC="rsync://rsync.gentoo.org/gentoo-portage" USE="x86 X a52 aac acpi alsa audiofile avi bash-completion berkdb bitmap-fonts bluetooth bzip2 cdr crypt cscope cups dbus dvd dvdr dvdread eds emacs encode fbcon ffmpeg foomaticdb ftp gdbm gif ginac gpm gstreamer gtk gtk2 hal imagemagick imlib java javascript jpeg libg++ libwww lm_sensors mad mikmod mmx motif mp3 mpeg ncurses nptl nsplugin nvidia ogg oggvorbis opengl pam pcmcia pdf pdflib perl png ppds python quicktime readline samba sdl sndfile spell sse sse2 ssl svg tcltk tcpd tetex threads tiff truetype truetype-fonts type1-fonts unicode usb v4l vorbis wifi win32codecs xine xml2 xmms xv xvid zlib elibc_glibc input_devices_keyboard input_devices_mouse input_devices_synaptics kernel_linux userland_GNU video_cards_nv video_cards_nvidia video_cards_v4l" Unset: ASFLAGS, CTARGET, EMERGE_DEFAULT_OPTS, LANG, LC_ALL, LINGUAS
Problem and solution confirmed on gcc-4.1.0 (and ~amd64). gcc-3.4.6 and lower did not have this AFAIK.Shouldn't this flag be filtered by the ebuild?
I have filtered -ftracer in 1.1.10 now and also 1.1.11 which I just bumped. This closes this bug.