From 26a029d407be480d791972afb5975cf62c9360a6 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Fri, 19 Apr 2024 02:47:55 +0200 Subject: Adding upstream version 124.0.1. Signed-off-by: Daniel Baumann --- third_party/rust/crossbeam-epoch/build.rs | 57 +++++++++++++++++++++++++++++++ 1 file changed, 57 insertions(+) create mode 100644 third_party/rust/crossbeam-epoch/build.rs (limited to 'third_party/rust/crossbeam-epoch/build.rs') diff --git a/third_party/rust/crossbeam-epoch/build.rs b/third_party/rust/crossbeam-epoch/build.rs new file mode 100644 index 0000000000..978141aa52 --- /dev/null +++ b/third_party/rust/crossbeam-epoch/build.rs @@ -0,0 +1,57 @@ +// The rustc-cfg listed below are considered public API, but it is *unstable* +// and outside of the normal semver guarantees: +// +// - `crossbeam_no_atomic_cas` +// Assume the target does *not* support atomic CAS operations. +// This is usually detected automatically by the build script, but you may +// need to enable it manually when building for custom targets or using +// non-cargo build systems that don't run the build script. +// +// With the exceptions mentioned above, the rustc-cfg emitted by the build +// script are *not* public API. + +#![warn(rust_2018_idioms)] + +use std::env; + +include!("no_atomic.rs"); +include!("build-common.rs"); + +fn main() { + let target = match env::var("TARGET") { + Ok(target) => convert_custom_linux_target(target), + Err(e) => { + println!( + "cargo:warning={}: unable to get TARGET environment variable: {}", + env!("CARGO_PKG_NAME"), + e + ); + return; + } + }; + + let cfg = match autocfg::AutoCfg::new() { + Ok(cfg) => cfg, + Err(e) => { + println!( + "cargo:warning={}: unable to determine rustc version: {}", + env!("CARGO_PKG_NAME"), + e + ); + return; + } + }; + + // Note that this is `no_`*, not `has_*`. This allows treating as the latest + // stable rustc is used when the build script doesn't run. This is useful + // for non-cargo build systems that don't run the build script. + if NO_ATOMIC_CAS.contains(&&*target) { + println!("cargo:rustc-cfg=crossbeam_no_atomic_cas"); + } + + if !cfg.probe_rustc_version(1, 61) { + println!("cargo:rustc-cfg=crossbeam_no_const_fn_trait_bound"); + } + + println!("cargo:rerun-if-changed=no_atomic.rs"); +} -- cgit v1.2.3