* checking ebuild checksums ;-) ...                                                                                   [ ok ] * checking auxfile checksums ;-) ...                                                                                  [ ok ] * checking miscfile checksums ;-) ...                                                                                 [ ok ] * checking glibc-2.4.tar.bz2 ;-) ...                                                                                  [ ok ] * checking glibc-ports-2.4.tar.bz2 ;-) ...                                                                            [ ok ] * checking glibc-libidn-2.4.tar.bz2 ;-) ...                                                                           [ ok ] * checking glibc-2.4-patches-1.17.tar.bz2 ;-) ...                                                                     [ ok ] * checking glibc-linuxthreads-20060605.tar.bz2 ;-) ...                                                                [ ok ] * checking glibc-powerpc-cpu-addon-v0.01.tgz ;-) ...                                                                  [ ok ] * glibc-2.4 is nptl-only!

!!! ERROR: sys-libs/glibc-2.4-r3 failed.
Call stack:
  ebuild.sh, line 1562:   Called dyn_setup
  ebuild.sh, line 665:   Called pkg_setup
  glibc-2.4-r3.ebuild, line 1087:   Called die

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