Switch enable-multilib to default

[ralf.corsepius at rtems.org (Ralf Corsepius)]

On Tue, 2008-02-19 at 15:16 -0600, Joel Sherrill wrote:
> Hi,
> 
> Ralf asked about this today and I think it is
> time to discuss it.  It is effectively moving
> us to cpukit being the default build mode if I
> understand correctly.
> 
> Ralf... explain a typical configuration from
> source for us.

What I had proposed was to let RTEMS source tree's default configuration
to default to building RTEMS multilib'ed.

I.e. people would have to explicitly specify --disable-multilib to build
RTEMS non-multilib'ed, instead of having to specify --enable-multilib to
build RTEMS multilib'ed, as the situation is now.

It basically means to inverse the default value of
--enable/disable-multilib of the source-tree's configuration.


The purpose of this step is to encourage people to build RTEMS
multilib'ed, to extend exposure of multilibs and to shake out
multilib-related issues early in RTEMS development process.
(ATM, we have a pretty poor footprint on such issues)

Ralf