Meson: Compiling Mesa?

business_kid · 07-23-2019, 03:42 PM

Bad news folks

Mesa project has switched to meson to build it. I am trying to figure out what to do with mesa, and it's a bit like starting riding horses in a steeplechase :-/.

I compiled Mesa-19.0.8 yesterday. I used 2 consoles in the mesa directory. In 1, I did the './configure --help |less' and in the other, I did the configure. It ended something like

Code:

./configure --prefix=/usr --libdir=/usr/lib64 --sysconfdir=/etc--with-gnu-ld  --with-gallium-drivers=[list] --with-dri-drivers=[list] --with-vulkan-drivers=[list]
make -j2
make DESTDIR=/tmp/pack install

Now from https://mesonbuild.com/Builtin-options.html I get some simple options but how the <expletive> am I going to get something like that out of meson?

individual · 07-23-2019, 05:29 PM

It's not as bad as you think. I've had to modify several SlackBuilds to use Meson, and it isn't so bad. The configuration options are almost all the same as traditional configuration options.

Code:

meson build
meson configure --[OPTIONS]
ninja -C build
meson install -C build

EDIT: You can also take a look at how it's built in -current here.

business_kid · 07-24-2019, 12:16 PM

Thanks, individual.

Personally, I had no confidence that

It would pick up on the /usr/lib & /usr/lib64 thing
I could install it to a $DESTDIR
I would be able to leave out the heavyweight Radeon & Nouveau directories which I don't need on my laptop
That it could even get the cpu optimisations right. I don't want to do it.

When I look at what the current Mesa maintainer has done, he appears to have no confidence in it either. He has put in a 206 line script which clearly implies meson cannot be trusted. Gnu Autotools had some level of cop on, and good help and feedback.

I was at the stage where I had hacked into mesa_options.txt, and was able to specify what directories I wanted to build, and I could get the command-line options to handle the prefrix & libdir, but was looking for the rest and had given up reading verbiage for one day. There's no torch burning under my a** these days, so personal preference can assert itself.