[Mesa-dev] Lets talk about autotools

[Dylan Baker]

Quoting Eric Engestrom (2018-09-18 09:00:49)
> On Tuesday, 2018-09-18 08:24:52 -0700, Dylan Baker wrote:
> > Quoting Kenneth Graunke (2018-09-18 01:40:48)
> > > On Monday, September 17, 2018 3:24:56 PM PDT Dylan Baker wrote:
> > > > Quoting Marek Ol\u0161ák (2018-09-17 15:14:11)
> > > > > How do I build 32-bit Mesa with meson?
> > > > > 
> > > > > Thanks,
> > > > > Marek
> > > > > 
> > > > 
> > > > Some people get away with just adding CFLAGs=-m32, but using a cross file and
> > > > doing a cross build is a better way, and is basically required if you want llvm.
> > > > Here's mine: https://gitlab.freedesktop.org/snippets/504
> > > > 
> > > > Dylan
> > > 
> > > I've attached mine, I then do:
> > > 
> > > meson --cross-file=/home/kwg/.local/meson-32-cross --buildtype=release --prefix=/home/kwg/Projects/mesa/build/32/install -Ddri-drivers=i965 -Dvulkan-drivers=intel -Dgallium-drivers= -Db_ndebug=true -Dglvnd=true build/32
> > > 
> > > Other than the addition of --cross-file, it's just like any other build.
> > 
> > If you put your cross file in ~/.local/share/meson/cross then you could just do
> > 
> > meson --cross-file=meson-32-cross --buildtype=release --prefix=$PWD/build/32/install -Ddri-drivers=i965 -Dvulkan-drivers=intel -Dgallium-drivers= -Db_ndebug=true -Dglvnd=true build/32
> > 
> > I think Eric Engstrom also landed is if-debug patches, so ndebug is by default
> > only enabled for debug and debugoptimized builds now. I think.
> 
> Other way around: b_ndebug is false by default and can be manually set
> to true, or to if-release in which case it is true if buildtype=release,
> but still false for debugoptimised, debug, minsize and plain unless
> specified.

ndebug makes my head hurt. I really wish that meson would have called the option
"b_assert" so it could be true for asserts on and false for asserts off. You
know what, I'm going to go propose that right now.

Dylan
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