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

[Paolo Bonzini]

On 08/03/19 17:17, Eric Blake wrote:
> On 3/8/19 6:03 AM, Peter Maydell wrote:
>> On Fri, 8 Mar 2019 at 11:58, Gerd Hoffmann <address@hidden> wrote:
>>> On Fri, Mar 08, 2019 at 10:31:20AM +0000, Peter Maydell wrote:
>>>> I think in fact I have just broken in-tree builds with the
>>>> Sphinx support patchset :-/
>>>
>>> Great opportunity!  Stop supporting in-tree build fixes a bug,
>>> so this can be merged post soft-freeze.
>>
>> Joking aside, this is quite tempting, because Sphinx simply
>> does not support building into the same directory as its
>> source documentation files. So we need to either:
>>  * create an ad-hoc build directory (eg docs/built)
>>    where Sphinx builds the docs to if we're doing an
>>    in-tree build, and have the 'make install' phase pull
>>    the docs out of there
> 
> Lots of work to just throw away if we plan on doing a flag day in 4.1.
> But necessary if you want 4.0 to still support in-tree builds for one
> last hurrah.
> 
>>  * declare in-tree builds to be no longer supported at all
> 
> Moves the flag day a bit sooner (today! surprise!), but I can live with
> this.
> 
> How long do we wait for objections, or should we pull the trigger?

Let's go and do it.  If somebody really wants to do in-tree builds they
can use --disable-docs.

The only possible negative effect could be that Coverity might show my
local paths - IIRC that's why I switched Coverity to use an in-tree
build - but we'll find a way around it.

Paolo

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