>>> checksums src_uri ;-) glibc-fedora-20060306T1239.tar.bz2
 * glibc-2.4 is nptl-only!
 * NPTL requires a CHOST of i486 or better

!!! ERROR: sys-libs/glibc-2.4-r1 failed.
Call stack:
  ebuild.sh, line 1573:   Called dyn_setup
  ebuild.sh, line 678:   Called pkg_setup

!!! please add USE='nptl nptlonly' to make.conf
!!! If you need support, post the topmost build error, and the call stack if relevant.