localhost ~ # emerge --update system
Calculating system dependencies... done!
>>> Verifying ebuild Manifests...

>>> Emerging (1 of 1) sys-libs/glibc-2.7-r1 to /
 * glibc-ports-2.7.tar.bz2 RMD160 SHA1 SHA256 size ;-) ...                                                                              [ ok ]
 * glibc-2.7.tar.bz2 RMD160 SHA1 SHA256 size ;-) ...                                                                                    [ ok ]
 * glibc-2.7-patches-1.6.tar.bz2 RMD160 SHA1 SHA256 size ;-) ...                                                                        [ ok ]
 * glibc-libidn-2.7.tar.bz2 RMD160 SHA1 SHA256 size ;-) ...                                                                             [ ok ]
 * checking ebuild checksums ;-) ...                                                                                                    [ ok ]
 * checking auxfile checksums ;-) ...                                                                                                   [ ok ]
 * checking miscfile checksums ;-) ...                                                                                                  [ ok ]
 * checking glibc-2.7.tar.bz2 ;-) ...                                                                                                   [ ok ]
 * checking glibc-libidn-2.7.tar.bz2 ;-) ...                                                                                            [ ok ]
 * checking glibc-ports-2.7.tar.bz2 ;-) ...                                                                                             [ ok ]
 * checking glibc-2.7-patches-1.6.tar.bz2 ;-) ...                                                                                       [ ok ]
 * You still haven't deleted //etc/locales.build.
 * Do so now after making sure //etc/locale.gen is kosher.
 *
 * ERROR: sys-libs/glibc-2.7-r1 failed.
 * Call stack:
 *               ebuild.sh, line   49:  Called pkg_setup
 *     glibc-2.7-r1.ebuild, line  205:  Called die
 * The specific snippet of code:
 *              die "lazy upgrader detected"
 *  The die message:
 *   lazy upgrader detected
 *
 * 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-libs/glibc-2.7-r1/temp/build.log'.
 * The ebuild environment file is located at '/var/tmp/portage/sys-libs/glibc-2.7-r1/temp/die.env'.
 *

 * Messages for package sys-libs/glibc-2.7-r1:

 * You still haven't deleted //etc/locales.build.
 * Do so now after making sure //etc/locale.gen is kosher.
 *
 * ERROR: sys-libs/glibc-2.7-r1 failed.
 * Call stack:
 *               ebuild.sh, line   49:  Called pkg_setup
 *     glibc-2.7-r1.ebuild, line  205:  Called die
 * The specific snippet of code:
 *              die "lazy upgrader detected"
 *  The die message:
 *   lazy upgrader detected
 *
 * 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-libs/glibc-2.7-r1/temp/build.log'.
 * The ebuild environment file is located at '/var/tmp/portage/sys-libs/glibc-2.7-r1/temp/die.env'.