Re: [Qemu-devel] converting build system to Meson?

["Daniel P. Berrangé" <berrange@redhat.com>]

On Thu, Mar 07, 2019 at 01:09:52PM +0000, Peter Maydell wrote:
> On Thu, 7 Mar 2019 at 12:56, Paolo Bonzini <pbonzini@redhat.com> wrote:
> > In any case, this wouldn't change; as you suggest below, configure could
> > remain as a front-end (well, in-srcdir builds are not supported by
> > Meson, so "../configure && ninja" perhaps).
> 
> As an aside, it might be a nice idea to drop the in-srcdir
> build altogether for QEMU anyway -- it's not really a very
> good idea and it means our build system has to cope with two
> different ways of working to no particularly useful end.

I'd be in favour of that. A huge amount of the pain I felt when
making previous changes to QEMU's makefiles has been caused by
trying to support both in-srcdir & vpath build with the same
set of rules. Fixing one often breaks the other, so you have
to cycle back & forth doing a fix in one, then testing the
other, repeat, repeat, scream, repeat.

Personally I always do in-srcdir builds, but I'd be fine to
switch to vpath builds to reduce our maint burden in the build
system as it would be a net win overall.

Regards,
Daniel
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