cc1: error: bad value (athlon64) for -march= switch
cc1: error: bad value (athlon64) for -mcpu= switch
echo timestamp > clean_s1
make[2]: *** [gengenrtl.o] Error 1
make[2]: Leaving directory `/var/tmp/portage/sys-devel/gcc-3.3.6-r1/work/build/gcc'
make[1]: *** [stage2_build] Error 2
make[1]: *** Waiting for unfinished jobs....
make[1]: Leaving directory `/var/tmp/portage/sys-devel/gcc-3.3.6-r1/work/build/gcc'
make: *** [bootstrap-lean] Error 2

!!! ERROR: sys-devel/gcc-3.3.6-r1 failed.
Call stack:
  ebuild.sh, line 1615:   Called dyn_compile
  ebuild.sh, line 972:   Called qa_call 'src_compile'
  ebuild.sh, line 44:   Called src_compile
  ebuild.sh, line 1305:   Called toolchain_src_compile
  toolchain.eclass, line 26:   Called gcc_src_compile
  toolchain.eclass, line 1537:   Called gcc_do_make
  toolchain.eclass, line 1411:   Called die

!!! emake failed with bootstrap-lean
!!! If you need support, post the topmost build error, and the call stack if relevant.
!!! A complete build log is located at '/var/tmp/portage/sys-devel/gcc-3.3.6-r1/temp/build.log'.