Meson 0.56.2 and Python39 --> dav1d failing

[Ken Cunningham]

> On Feb 9, 2021, at 12:04 AM, Ken Cunningham <ken.cunningham.webuse at gmail.com> wrote:
> 
> 
> PS — any feedback on the success of the cross building, or any failures encountered, would be much appreciated.  I believe this is the only setup that currently allows meson cross building on BigSur that is available for macOS.


Yep, success! meson cross-building to arm64 from BigSur Intel finally works now:

% port -v installed dav1d
The following ports are currently installed:
  dav1d @0.8.1_0+universal (active) platform='darwin 20' archs='arm64 x86_64' date='2021-02-09T01:15:26-0800'

% file /opt/local/lib/libdav1d.5.dylib
/opt/local/lib/libdav1d.5.dylib: Mach-O universal binary with 2 architectures: [x86_64:Mach-O 64-bit dynamically linked shared library x86_64] [arm64]
/opt/local/lib/libdav1d.5.dylib (for architecture x86_64):	Mach-O 64-bit dynamically linked shared library x86_64
/opt/local/lib/libdav1d.5.dylib (for architecture arm64):	Mach-O 64-bit dynamically linked shared library arm64


and presumably the other way around as well. So that's something new.


dav1d needs a couple of minor tweaks to get it to build universal, but they are minor.

K
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