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chore: cc-rs MUST be forked for new targets #2264

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chore: cc-rs MUST be forked for new targets #2264

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7 changes: 6 additions & 1 deletion src/building/new-target.md
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Expand Up @@ -119,7 +119,12 @@ const STAGE0_MISSING_TARGETS: &[&str] = &[
## Patching crates

You may need to make changes to crates that the compiler depends on,
such as [`libc`][] or [`cc`][]. If so, you can use Cargo's
such as [`libc`][] or [`cc`][].

For instance, [`cc`][] only supports a hardcoded list of targets, if your target is not known to [`cc`][],
you will need to maintain a fork of [`cc`][] until it lands in nightly and the auto-generated list has been updated.

If so, you can use Cargo's
[`[patch]`][patch] ability. For example, if you want to use an
unreleased version of `libc`, you can add it to the top-level
`Cargo.toml` file:
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