[gentoo-embedded] cross building into custom SYSROOT with non root user ?

[Joakim Tjernlund]

I am trying to get this old dream to fly again:
Building a root fs in my own sysroot (other that /usr/CHOST ) as a normal 
user because the
good old /usr/CHOST as root doesn't really fly in a multi developer 
project where people expect to
be able build stuff as a normal user and being able to have multiple 
versions of root fs installed.

I could not even build glibc:
 > SYSROOT=/usr/local/src/X-5000/root 
PKGDIR=/usr/local/src/X-5000/overlay/packages 
DISTDIR=/usr/local/src/X-5000/overlay/distfiles 
ROOT=/usr/local/src/X-5000/root emerge-x86_64-tm-linux-gnu -a --nodeps 
sys-libs/glibc
....
   /usr/bin/install: cannot change ownership of 
'/usr/x86_64-tm-linux-gnu/tmp/portage/sys-libs/glibc-2.17/image//usr/lib/misc/glibc/pt_chown': 
Operation not permitted

I got fakeroot installed but seems like emerge ignores that somehow.
Is this just a futile dream still?

 Jocke