Fix the warning:
```
./contrib/macdeploy/gen-sdk:84: FutureWarning: GzipFile was opened for writing, but this will change in future Python releases. Specify the mode argument for opening it for writing.
```
The previous link wasn't accessible for me, this adds some instructions
given to me by Hebasto on #bitcoin-core-builds as well as a shasum for
the archive to quickly check the downloaded one is the right one before
processing with the entire Guix build.
This also corrects a link to an older version of the SDK currently in
use.
Signed-off-by: Antoine Poinsot <darosior@protonmail.com>
xorriso and its mkisofs/genisoimage emulation alter-ego xorrisofs are
more maintained, and has the right toggles for us to achieve output
determinism without using blunt tools like faketime.
In this commit, we use xorrisofs from the build environment rather than
building it ourselves using depends. This is not necessary and can be
changed in the future.
From https://wiki.debian.org/genisoimage?action=recall&rev=11 :
> The classical command line interface for production of ISO 9660
> filesystem images is the option set established by program mkisofs.
> For reasons of licensing and other problems with its author, Debian
> ships a fork of mkisofs, called genisoimage, which was split off in
> 2006 and then developed independently.
>
> Meanwhile, genisoimage gets no new features and not even bug fixes. It
> is first choice only if its options -udf or -hfs are needed.
>
> Replacement in most uses cases, especially for bootable ISO 9660
> filesystems, archiving, and backup, is xorrisofs which starts the -as
> mkisofs emulation mode of program xorriso.
Rather than two lots of logic doing roughly the same thing, dependent on if
you're compiling on Linux or macOS, combine the .DS store generation into
macdeployqtplus.
This also removes the -fancy and -volname options.
Rather than using OSX_QT_TRANSLATIONS which must be manually updated,
and we forget to update anyway, i.e: #19059, automatically find and copy
available translations from the translations directory.
native_ds_store now takes advantage of Pythons ability to decode binary
plists (since 3.4), so we can drop its biplist dependency.
The call to biplist.Data() in custom_dsstore doesn't seem to do anything,
and from what I can tell can just be removed.
