sys-libs/glibc
# breaks gcc and such
dev-libs/libiconv

# doesnt seem to work
=app-arch/tar-1.15.91
=app-arch/tar-1.16-r2
=app-arch/tar-1.16.1
>=sys-fs/xfsprogs-2.8.10

# newer versions require stropts.h which uclibc doesnt implement [yet]
~sys-fs/udev-090
~sys-fs/udev-094
~sys-fs/udev-096
~sys-fs/udev-098
~sys-fs/udev-099
~sys-fs/udev-100