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Bootstrap should be able to learn target information from Rustc target database #67171

@jethrogb

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@jethrogb
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There is lots of behavior in bootstrap that just does string matching on the target name to partially alter its behavior. A lot of the time, this information could've been determined by looking at a particular target option (from rustc --print=target-spec-json).

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T-bootstrapRelevant to the bootstrap subteam: Rust's build system (x.py and src/bootstrap)
C-enhancementCategory: An issue proposing an enhancement or a PR with one.
on Dec 9, 2019
added a commit that references this issue on Dec 12, 2019
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    C-enhancementCategory: An issue proposing an enhancement or a PR with one.T-bootstrapRelevant to the bootstrap subteam: Rust's build system (x.py and src/bootstrap)

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          Bootstrap should be able to learn target information from Rustc target database · Issue #67171 · rust-lang/rust