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Alex Crichton
8eb7f36a3b
This is duplicated in a few locations throughout the sysroot to work around issues with not exporting a macro in libstd but still wanting it available to sysroot crates to define blocks. Nowadays though we can simply depend on the `cfg-if` crate on crates.io, allowing us to use it from there!
29 lines
751 B
Rust
29 lines
751 B
Rust
#![no_std]
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#![unstable(feature = "panic_unwind", issue = "32837")]
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#![deny(rust_2018_idioms)]
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#![feature(link_cfg)]
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#![feature(nll)]
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#![feature(staged_api)]
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#![feature(unwind_attributes)]
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#![feature(static_nobundle)]
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#![cfg_attr(not(target_env = "msvc"), feature(libc))]
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cfg_if::cfg_if! {
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if #[cfg(target_env = "msvc")] {
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// no extra unwinder support needed
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} else if #[cfg(all(target_arch = "wasm32", not(target_os = "emscripten")))] {
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// no unwinder on the system!
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} else {
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mod libunwind;
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pub use libunwind::*;
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}
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}
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#[cfg(target_env = "musl")]
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#[link(name = "unwind", kind = "static", cfg(target_feature = "crt-static"))]
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#[link(name = "gcc_s", cfg(not(target_feature = "crt-static")))]
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extern {}
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