Here the error, on my machine it's reproducible: gcc -O2 -Wall -O2 -g -fno-strict-aliasing -fomit-frame-pointer -I. -I/var/tmp/portage/qemu-softmmu-0.8.0/work/qemu-0.8.0/target-i386 -I/var/tmp/portage/qemu-softmmu-0.8.0/work/qemu-0.8.0 -D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -I/var/tmp/portage/qemu-softmmu-0.8.0/work/qemu-0.8.0/fpu -DHAS_AUDIO -I/var/tmp/portage/qemu-softmmu-0.8.0/work/qemu-0.8.0/slirp -c -o helper.o /var/tmp/portage/qemu-softmmu-0.8.0/work/qemu-0.8.0/target-i386/helper.c /var/tmp/portage/qemu-softmmu-0.8.0/work/qemu-0.8.0/target-i386/helper.c: In function 'helper_cmpxchg8b': /var/tmp/portage/qemu-softmmu-0.8.0/work/qemu-0.8.0/target-i386/helper.c:1286: error: unable to find a register to spill in class 'GENERAL_REGS' /var/tmp/portage/qemu-softmmu-0.8.0/work/qemu-0.8.0/target-i386/helper.c:1286: error: this is the insn: (insn:HI 114 113 115 6 /var/tmp/portage/qemu-softmmu-0.8.0/work/qemu-0.8.0/cpu-all.h:342 (set (mem:DI (plus:SI (reg:SI 60 [ T2.2313 ]) (reg:SI 112 [ <variable>.addend ])) [0 S8 A64]) (reg/v:DI 63 [ v ])) 56 {*movdi_2} (insn_list:REG_DEP_TRUE 113 (nil)) (expr_list:REG_DEAD (reg/v:DI 63 [ v ]) (expr_list:REG_DEAD (reg:SI 60 [ T2.2313 ]) (expr_list:REG_DEAD (reg:SI 112 [ <variable>.addend ]) (nil))))) /var/tmp/portage/qemu-softmmu-0.8.0/work/qemu-0.8.0/target-i386/helper.c:1286: confused by earlier errors, bailing out make[1]: *** [helper.o] Error 1 make[1]: *** Waiting for unfinished jobs.... /var/tmp/portage/qemu-softmmu-0.8.0/work/qemu-0.8.0/target-i386/ops_template_mem.h: In function 'op_adcb_user_T0_T1_cc': /var/tmp/portage/qemu-softmmu-0.8.0/work/qemu-0.8.0/softmmu_header.h:203: error: can't find a register in class 'GENERAL_REGS' while reloading 'asm' make[1]: *** [op.o] Error 1 make[1]: Leaving directory `/var/tmp/portage/qemu-softmmu-0.8.0/work/qemu-0.8.0/i386-softmmu' make: *** [all] Error 1 !!! ERROR: app-emulation/qemu-softmmu-0.8.0 failed. Call stack: ebuild.sh, line 1546: Called dyn_compile ebuild.sh, line 937: Called src_compile qemu-softmmu-0.8.0.ebuild, line 84: Called die !!! make failed !!! If you need support, post the topmost build error, and the call stack if relevant. And my emerge --info: Portage 2.1.1-r1 (default-linux/x86/2006.1, gcc-4.1.1, glibc-2.4-r4, 2.6.17-gentoo-r7 i686) ================================================================= System uname: 2.6.17-gentoo-r7 i686 Intel(R) Pentium(R) 4 CPU 1.70GHz Gentoo Base System version 1.12.6 Last Sync: Wed, 15 Nov 2006 20:00:01 +0000 distcc 2.18.3 i686-pc-linux-gnu (protocols 1 and 2) (default port 3632) [disabled] ccache version 2.3 [enabled] app-admin/eselect-compiler: [Not Present] dev-java/java-config: 1.3.7, 2.0.30 dev-lang/python: 2.4.3-r4 dev-python/pycrypto: 2.0.1-r5 dev-util/ccache: 2.3 dev-util/confcache: [Not Present] sys-apps/sandbox: 1.2.17 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: 2.16.1-r3 sys-devel/gcc-config: 1.3.13-r4 sys-devel/libtool: 1.5.22 virtual/os-headers: 2.6.17-r1 ACCEPT_KEYWORDS="x86" AUTOCLEAN="yes" CBUILD="i686-pc-linux-gnu" CFLAGS="-march=pentium4 -O2 -pipe" 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/env.d/java/ /etc/gconf /etc/java-config/vms/ /etc/revdep-rebuild /etc/terminfo" CXXFLAGS="-march=pentium4 -O2 -pipe" DISTDIR="/usr/portage/distfiles" FEATURES="autoconfig ccache distlocks metadata-transfer parallel-fetch sandbox sfperms strict" GENTOO_MIRRORS="http://ds.thn.htu.se/linux/gentoo http://ftp.du.se/pub/os/gentoo http://mirror.pudas.net/gentoo" 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" SYNC="rsync://rsync.gentoo.org/gentoo-portage" USE="x86 3dnow X alsa avi berkdb bitmap-fonts cli cpudetection cracklib crypt dlloader dri elibc_glibc gdbm gif gpm gtk gtk2 iconv input_devices_keyboard input_devices_mouse isdnlog java jpeg kernel_linux libg++ mad mmx mp3 mpeg ncurses nls nptl nptlonly opengl pam pcre perl png ppds pppd python quicktime readline reflection samba sdl session spl sse sse2 ssl truetype truetype-fonts type1-fonts udev unicode userland_GNU video_cards_nvidia win32codecs xorg xv zlib" Unset: CTARGET, EMERGE_DEFAULT_OPTS, INSTALL_MASK, LANG, LC_ALL, LDFLAGS, LINGUAS, PORTAGE_RSYNC_EXTRA_OPTS
*** This bug has been marked as a duplicate of 122228 ***