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macdeploy: disable compression in macOS gen-sdk script

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Starting with Python 3.11, Pythons gzip might delegate to zlib.
Depending on the OS, i.e Ubuntu vs Fedora, the underlying zlib
implementation might differ, resulting in different output.

For now, or until a better solution exists, disable compression. This
results in the SDK increasing in size to ~157mb. Which is not
unreasonable, to regain determinism (and would be significantly worse
without the previous commit).

See: https://docs.python.org/3/library/gzip.html#gzip.compress

Co-authored-by: stickies-v <stickies-v@protonmail.com>
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fanquakeandstickies-v committed 2025-11-26 11:07:48 +00:00
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commit c1213a35ab
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contrib/macdeploy/README.md
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@@ -51,8 +51,8 @@ path to `Xcode.app` (extracted in the previous stage) as the first argument.
./contrib/macdeploy/gen-sdk '/path/to/Xcode.app'
```
The generated archive should be: `Xcode-15.0-15A240d-extracted-SDK-with-libcxx-headers.tar.gz`.
The `sha256sum` should be `5aa41897b7f00abdaf1ece242dde3eb96a395746c09638b3a59720694712387d`.
The generated archive should be: `Xcode-15.0-15A240d-extracted-SDK-with-libcxx-headers.tar`.
The `sha256sum` should be `95b00dc41fa090747dc0a7907a5031a2fcb2d7f95c9584ba6bccdb99b6e3d498`.
## Deterministic macOS App Notes