[oe] multiple DISTRO's in tmp

[Phil Blundell]

On Fri, 2009-12-11 at 09:39 +0100, Frans Meulenbroeks wrote:
> However, I was wondering: wouldn't it be nice to allow multiple
> distro's in one tmp dir (so that e.g. if they share the same version
> of a recipe (like m4-native or os), this does not need to be
> recompiled?

Even if the (PN, PV) tuple is the same for two DISTROs it doesn't
necessarily follow that the resulting packages will be the same.  They
might have selected different compilers, configuration options, or
versions of depended-on packages.  Or they might have a different
filesystem layout, or any number of other things.

So, practically speaking, no: it isn't going to be feasible to make
multiple DISTROs coexist in a single TMPDIR.  This is a case where you
do need to create a separate TMPDIR.

p.