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Auto merge of #113432 - klensy:ms-cut-backtrace, r=ChrisDenton

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reduce deps for windows-msvc targets for backtrace

(eventually) mirrors https://github.com/rust-lang/backtrace-rs/pull/543

Some dependencies of backtrace don't used on windows-msvc targets, so exclude them:

    miniz_oxide (+ adler)
    addr2line (+ gimli)
    object (+ memchr)

This saves about 30kb of std.dll + 17.5mb of rlibs
This commit is contained in:
bors 2023-08-11 12:07:04 +00:00
commit 08691f0c92
4 changed files with 13 additions and 9 deletions
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8
library/std/src/lib.rs
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@ -397,9 +397,15 @@ extern crate libc;
#[allow(unused_extern_crates)]
extern crate unwind;
// FIXME: #94122 this extern crate definition only exist here to stop
// miniz_oxide docs leaking into std docs. Find better way to do it.
// Remove exclusion from tidy platform check when this removed.
#[doc(masked)]
#[allow(unused_extern_crates)]
#[cfg(feature = "miniz_oxide")]
#[cfg(all(
not(all(windows, target_env = "msvc", not(target_vendor = "uwp"))),
feature = "miniz_oxide"
))]
extern crate miniz_oxide;
// During testing, this crate is not actually the "real" std library, but rather