Attaching a patch...
Created attachment 86054 [details, diff] trigger-0.5.2-gcc41.patch
I just used the same fix to compile trigger-0.5.2-r1 (the new release for freealut/openal split), works fine here Portage 2.1_rc1-r2 (default-linux/amd64/2006.0, gcc-4.1.0, glibc-2.4-r3, 2.6.16-ck10 x86_64) ================================================================= System uname: 2.6.16-ck10 x86_64 AMD Athlon(tm) 64 Processor 3700+ Gentoo Base System version 1.12.0_pre19 ccache version 2.4 [enabled] 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: 1.2.17 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-r2 sys-devel/binutils: 2.16.92 sys-devel/libtool: 1.5.22 virtual/os-headers: 2.6.11-r3 ACCEPT_KEYWORDS="amd64 ~amd64" AUTOCLEAN="yes" CBUILD="x86_64-pc-linux-gnu" CFLAGS="-march=athlon64 -O2 -pipe" CHOST="x86_64-pc-linux-gnu" CONFIG_PROTECT="/etc /usr/NX/etc /usr/NX/home /usr/grass60/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/lib64/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/splash /etc/terminfo /etc/texmf/web2c /etc/env.d" CXXFLAGS="-march=athlon64 -O2 -pipe" DISTDIR="/usr/portage/distfiles" FEATURES="autoconfig ccache confcache distlocks fixpackages metadata-transfer parallel-fetch prelink sandbox sfperms strict" GENTOO_MIRRORS="http://ftp.belnet.be/mirror/rsync.gentoo.org/gentoo/ http://ftp.snt.utwente.nl/pub/os/linux/gentoo http://mir.zyrianes.net/gentoo/ http://pandemonium.tiscali.de/pub/gentoo/" LANG="fr_FR@euro" LC_ALL="fr_FR" LDFLAGS="-Wl,-O1 -Wl,--as-needed -Wl,-hashvals -Wl,-Bdirect -Wl,-zdynsort" LINGUAS="fr fr_FR" 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'" PORTAGE_TMPDIR="/var/tmp" PORTDIR="/usr/portage" PORTDIR_OVERLAY="/usr/local/portage /usr/portage/local/layman/nxsty-glibc /usr/portage/local/layman/nxsty-binutils" SYNC="rsync://rsync.europe.gentoo.org/gentoo-portage" USE="amd64 X a52 aac aalib acpi aim alsa audiofile avi bash-completion berkdb bitmap-fonts bonobo browserplugin bzip2 cairo cddb cdr cli crypt cscope cups curl dbus dga dio dlloader dri dts dvb dvd dvdr dvdread emboss encode exif expat ffmpeg fftw flac foomaticdb fortran ftp gb gcj gd gdbm gif gimp glut gmp gnome gnustep gnutls gphoto2 gpm gstreamer gtk gtk2 gtkhtml iconv idn imagemagick imap imlib ipv6 isdnlog jabber java jikes joystick jpeg lcms libcaca live lzw lzw-tiff mad matroska mbox mikmod mime mng mono mozilla mp3 mpeg msn musicbrainz nas ncurses nls nptl nptlonly nsplugin nvidia objc offensive ogg oggvorbis openal opengl oscar oss pam pcmcia pcre pda pdflib perl php pic png posix ppds pppd python qt quicktime readline recode reflection ruby samba scanner sdl session slang speex spell spl sqlite ssl startup-notification svg tcltk tcpd tetex theora threads tiff truetype truetype-fonts type1-fonts unicode usb v4l vcd vorbis wifi wmf wxwindows x264 xcomposite xface xine xinerama xml xml2 xmms xorg xosd xpm xscreensaver xv xvid yahoo zlib elibc_glibc input_devices_keyboard input_devices_mouse input_devices_synaptics kernel_linux linguas_fr linguas_fr_FR userland_GNU video_cards_none video_cards_nvidia" Unset: ASFLAGS, CTARGET, EMERGE_DEFAULT_OPTS, INSTALL_MASK, PORTAGE_RSYNC_EXTRA_OPTS
Fix is in portage, thanks