Passing install_root=$out isn't a good idea because the install script is going
to pre-pend that prefix to all other paths even though these have the $out
prefix already. The resulting installation is a mess. Instead, we use the
"fake" install prefix "out" and then move all files and directories into the
right place afterward.
Instead, use the generic package override mechanism to use packages
from earlier bootstrap phases.
* Don't rely on the existence of attributes such as
`stdenv.coreutils'.
svn path=/nixpkgs/trunk/; revision=22991
probably be a bit tricky, due to sendmail "compatibility" (postfix makes
a symlink to "sendmail", so programs will keep on working).
svn path=/nixpkgs/trunk/; revision=5030
