[PATCH 1/3] mock cvs 2007-03: cross-compile support

[Ken MacLeod]

Thanks for the excellent review, I'll rebase and implement the changes
in my next coding session.  

Michael E Brown <Michael_E_Brown at dell.com> writes:

> On Tue, Jun 12, 2007 at 09:15:13PM -0500, Ken MacLeod wrote:

> Can you give an overview for the ignorant (ie. me) about the
> difference between /cross and /target? Why is /cross its own
> chroot-like thing?  Couldnt you just say, "install this one
> additional cross-buildsys-rpm, which pulls in the cross-toolchain?"

I agree that that's the way it should work.  You've got it right that
the /cross tools are essentially part of the host environment, so the
difference to /target is that target is the chroot for holding the
target libraries and headers.

Most cross-development toolkits assume their cross-tools install into
a dedicated root and they don't do any renaming so they'd be replacing
the equivalent host tools.  A few do install themselves cleanly into
/opt so I'll be able to test those without a cross root.  RTEMS is
built to install with RPM directly into the host filesystem under
/opt, where MontaVista cross RPMs install under /opt but (I think)
aren't set up to be in the host RPM db.

When there's a good reference example for installing into the host
filesystem (maybe RTEMS or MV) we can provide guidance for other
distributions.

  -- Ken