The problem with checking is you now have divergent builds/build procedures
depending on where you're installing. If you have DESTDIR=/ and this checks
for it you now have to manually maintain your password file against src/etc's
copy and in all other cases you don't.

This definitly fails the principle of least surprise if I was someone new 
coming along to build a system. build.sh will warn you about DESTDIR=/ but
the behavior of the build or it's outputs don't change otherwise.

James


>   
>    > It might bite people who change the uids of default users when
>    > building into "/".  That's why I didn't make this the default
>    > when I added the support.
>   
>   I'm not sure I particularly care about supporting that case.  If you
>   do that, be prepared to fixup your sources if you source-upgrade, I say.
>
>
>i think the problem comes from when people had pre-existing accounts
>that we've added.  i know it's affected me at least twice.
>
>
>.mrg.
>
>
>
>