Tried isomaster from source and portage both worked fine(adding amd64 flag to ebuild), managed to rebuild an ISO file without any issues. Reproducible: Always Steps to Reproduce: emerge --info Portage 2.1.1-r2 (default-linux/amd64/2006.1, gcc-4.1.1, glibc-2.4-r4, 2.6.20-gentoo x86_64) ================================================================= System uname: 2.6.20-gentoo x86_64 AMD Athlon(tm) 64 Processor 3500+ Gentoo Base System release 1.12.8 Last Sync: Thu, 08 Feb 2007 20:00:01 +0000 ccache version 2.4 [enabled] app-admin/eselect-compiler: [Not Present] dev-java/java-config: 1.3.7, 2.0.31 dev-lang/python: 2.3.5-r3, 2.4.3-r4 dev-python/pycrypto: 2.0.1-r5 dev-util/ccache: 2.4-r6 dev-util/confcache: [Not Present] sys-apps/sandbox: 1.2.17 sys-devel/autoconf: 2.13, 2.61 sys-devel/automake: 1.4_p6, 1.5, 1.6.3, 1.7.9-r1, 1.8.5-r3, 1.9.6-r2, 1.10 sys-devel/binutils: 2.16.1-r3 sys-devel/gcc-config: 1.3.14 sys-devel/libtool: 1.5.22 virtual/os-headers: 2.6.17-r1 ACCEPT_KEYWORDS="amd64" AUTOCLEAN="yes" CBUILD="x86_64-pc-linux-gnu" CFLAGS="-march=athlon64 -O3 -ftracer -pipe -funroll-loops -fpeel-loops" CHOST="x86_64-pc-linux-gnu" CONFIG_PROTECT="/etc /usr/share/X11/xkb" CONFIG_PROTECT_MASK="/etc/env.d /etc/env.d/java/ /etc/gconf /etc/java-config/vms/ /etc/revdep-rebuild /etc/splash /etc/terminfo" CXXFLAGS="-march=athlon64 -O3 -ftracer -pipe -funroll-loops -fpeel-loops" DISTDIR="/usr/portage/distfiles" FEATURES="autoconfig candy ccache distlocks fixpackages metadata-transfer sandbox sfperms strict" GENTOO_MIRRORS="http://gentoo.blueyonder.co.uk/" LANG="en_GB" LC_ALL="en_GB" LINGUAS="en_GB" 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" SYNC="rsync://rsync.gentoo.org/gentoo-portage" USE="3dnowex X a52 aac aiglx alsa alsa_cards_ali5451 alsa_cards_als4000 alsa_cards_atiixp alsa_cards_atiixp-modem alsa_cards_bt87x alsa_cards_ca0106 alsa_cards_cmipci alsa_cards_emu10k1x alsa_cards_ens1370 alsa_cards_ens1371 alsa_cards_es1938 alsa_cards_es1968 alsa_cards_fm801 alsa_cards_hda-intel alsa_cards_intel8x0 alsa_cards_intel8x0m alsa_cards_maestro3 alsa_cards_trident alsa_cards_usb-audio alsa_cards_via82xx alsa_cards_via82xx-modem alsa_cards_ymfpci alsa_pcm_plugins_adpcm alsa_pcm_plugins_alaw alsa_pcm_plugins_asym alsa_pcm_plugins_copy alsa_pcm_plugins_dmix alsa_pcm_plugins_dshare alsa_pcm_plugins_dsnoop alsa_pcm_plugins_empty alsa_pcm_plugins_extplug alsa_pcm_plugins_file alsa_pcm_plugins_hooks alsa_pcm_plugins_iec958 alsa_pcm_plugins_ioplug alsa_pcm_plugins_ladspa alsa_pcm_plugins_lfloat alsa_pcm_plugins_linear alsa_pcm_plugins_meter alsa_pcm_plugins_mulaw alsa_pcm_plugins_multi alsa_pcm_plugins_null alsa_pcm_plugins_plug alsa_pcm_plugins_rate alsa_pcm_plugins_route alsa_pcm_plugins_share alsa_pcm_plugins_shm alsa_pcm_plugins_softvol amd64 berkdb bitmap-fonts cairo cddb cdr cli cracklib crypt cups dbus divx4linux dlloader dri dvd dvdr elibc_glibc emul-linux-x86 encode exif exo ffmpeg foomaticdb fortran freetype gdbm gif gimpprint glitz gpm gtk gtk2 hal iconv imlib input_devices_keyboard input_devices_mouse ipv6 isdnlog java jpeg kernel_linux lcd_devices_bayrad lcd_devices_cfontz lcd_devices_cfontz633 lcd_devices_glk lcd_devices_hd44780 lcd_devices_lb216 lcd_devices_lcdm001 lcd_devices_mtxorb lcd_devices_ncurses lcd_devices_text libg++ linguas_en_GB mad midi mmx2 mp3 mpeg ncurses nls nptl nptlonly nsplugin nvidia ogg opengl pam pcre pdf png ppds pppd python quicktime readline reflection sdl session spell spl ssl startup-notification svg tcpd tiff truetype truetype-fonts type1-fonts udev unicode usb userland_GNU video_cards_nvidia wxwindows xcomposite xorg xorg-x11 xscreensaver xv xvid zlib" Unset: CTARGET, EMERGE_DEFAULT_OPTS, INSTALL_MASK, LDFLAGS, MAKEOPTS, PORTAGE_RSYNC_EXTRA_OPTS
Thanks, done.
