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docs: expand on -Dcpu in PACKAGING.md

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Isaac Freund 2022-05-22 16:17:55 +02:00
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PACKAGING.md
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@ -37,7 +37,17 @@ at a minimum must be passed.
Here are a few other options that are particularly relevant to packagers:
- `-Dcpu=baseline`: Target the baseline CPU, or any other set of CPU features.
- `-Dcpu=baseline`: Build for the "baseline" CPU of the target architecture,
or any other CPU/feature set (e.g. `-Dcpu=x86_64_v2`).
- Individual features can be added/removed with `+`/`-`
(e.g. `-Dcpu=x86_64+avx2-cmov`).
- For a list of CPUs see for example `zig targets | jq '.cpus.x86_64 |
keys'`.
- For a list of features see for example `zig targets | jq
'.cpusFeatures.x86_64'`.
- `-Dtarget=x86_64-linux-gnu`: Target architecture, OS, and ABI triple. See
the output of `zig targets` for an exhaustive list of targets and CPU features,