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musl: Change musl_v1_2_3 to musl_v1_2 - #5376

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musl: Change musl_v1_2_3 to musl_v1_2#5376
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tgross35:musl-version-simplify

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@tgross35 tgross35 commented Aug 6, 2026

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1.2.0 was the release that introduced 64-bit time_t everywhere 1,
which is the main thing we are interested in with this config. There is
nothing special about 1.2.3, and most gated API will work down to 1.2.0.
This has been a source of mild confusion.

To make things more clear, drop the _3. We continue to support
libc_unstable_musl_v1_2_3 for now but emit a warning if set.

Closes: #5200

@tgross35

tgross35 commented Aug 6, 2026

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@xbjfk mind taking a look at this?

@tgross35
tgross35 force-pushed the musl-version-simplify branch from 896f2e8 to 0f4a181 Compare August 6, 2026 08:56
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1.2.0 was the release that introduced 64-bit `time_t` everywhere [1],
which is the main thing we are interested in with this config. There is
nothing special about 1.2.3, and most gated API will work down to 1.2.0.
This has been a source of mild confusion.

To make things more clear, drop the `_3`. We continue to support
`libc_unstable_musl_v1_2_3` for now but emit a warning if set.

Closes: rust-lang#5200

[1]: https://musl.libc.org/releases.html
@tgross35
tgross35 force-pushed the musl-version-simplify branch from 0f4a181 to 12306de Compare August 6, 2026 09:55
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rustbot commented Aug 6, 2026

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This PR was rebased onto a different main commit. Here's a range-diff highlighting what actually changed.

Rebasing is a normal part of keeping PRs up to date, so no action is needed—this note is just to help reviewers.

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Rename musl_v1_2_3 and RUST_LIBC_UNSTABLE_MUSL_V1_2_3 to musl_v1_2 and RUST_LIBC_UNSTABLE_MUSL_V1_2

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