[Mesa-maintainers] RFC discussion using meson for Mesa

[Andreas Boll]

FYI there's a libtool performance regression which causes a slower
build of mesa.

See http://harald.hoyer.xyz/2015/03/05/libtool-getting-rid-of-180000-sed-forks/
and https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=848864

There are three commits [1] [2] [3] for mitigating this issue in the
libtool git repo since 2015
but unfortunately those patches haven't made it into a release yet.

Thanks,
Andreas

[1] http://git.savannah.gnu.org/cgit/libtool.git/commit/?id=32f0df9835ac15ac17e04be57c368172c3ad1d19
[2] http://git.savannah.gnu.org/cgit/libtool.git/commit/?id=16dbc070d32e6d4601cb5878dfdf69f2e29c84e1
[3] http://git.savannah.gnu.org/cgit/libtool.git/commit/?id=9187e9a231e0a06cc29c336857e95f07f855b2c9

2017-03-21 17:59 GMT+01:00 Marek Olšák <maraeo at gmail.com>:
> Despite some negative feedback I gave in the other thread, I think
> ninja is great because it's faster than make.
>
> I've also noticed that building Mesa with a hot ccache and make is
> very slow, while building LLVM (much bigger project) with a hot ccache
> and ninja is very fast. It looks like make can copy 10 files from
> ccache per second, while ninja can copy 100 files from ccache per
> second. (using an SSD here)
>
> Marek
>
> On Tue, Mar 21, 2017 at 5:08 PM, Emil Velikov <emil.l.velikov at gmail.com> wrote:
>> Hi all,
>>
>> For some of you that have missed it there's a discussion (of sorts)
>> whether we should use meson to build Mesa.
>> Thread starts here [1], with libdrm as "learning exercise".
>>
>> Feel free to chime-in [be that here or in-reply to the thread], even
>> if you feel overwhelmed by some of the strong opinions in there - be
>> that mine or not.
>>
>> Disclaimer: There's finders pointed and people bashing autotools with
>> limited [imho] technical details/reasoning.
>>
>> Fwiw I'm not excited about autotools and our our three build systems,
>> despite that doing most of the heavy lifting over the last years
>> [after "taking over" from Matt].
>> Then again, I'm not convinced that meson is the solution we're looking for.
>>
>> -Emil
>> [1] https://lists.freedesktop.org/archives/mesa-dev/2017-March/148314.html
>> _______________________________________________
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