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49aa5a23ca
This reverts commit 93677276bc
because it caused issues for projects building the standard
library with non-cargo build systems.
63 lines
2.4 KiB
Rust
63 lines
2.4 KiB
Rust
use std::env;
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fn main() {
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println!("cargo:rerun-if-changed=build.rs");
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let target = env::var("TARGET").expect("TARGET was not set");
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if target.contains("freebsd") {
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if env::var("RUST_STD_FREEBSD_12_ABI").is_ok() {
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println!("cargo:rustc-cfg=freebsd12");
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} else if env::var("RUST_STD_FREEBSD_13_ABI").is_ok() {
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println!("cargo:rustc-cfg=freebsd12");
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println!("cargo:rustc-cfg=freebsd13");
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}
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} else if target.contains("linux")
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|| target.contains("netbsd")
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|| target.contains("dragonfly")
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|| target.contains("openbsd")
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|| target.contains("solaris")
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|| target.contains("illumos")
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|| target.contains("apple-darwin")
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|| target.contains("apple-ios")
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|| target.contains("apple-tvos")
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|| target.contains("apple-watchos")
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|| target.contains("uwp")
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|| target.contains("windows")
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|| target.contains("fuchsia")
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|| (target.contains("sgx") && target.contains("fortanix"))
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|| target.contains("hermit")
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|| target.contains("l4re")
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|| target.contains("redox")
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|| target.contains("haiku")
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|| target.contains("vxworks")
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|| target.contains("wasm32")
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|| target.contains("wasm64")
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|| target.contains("asmjs")
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|| target.contains("espidf")
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|| target.contains("solid")
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|| target.contains("nintendo-3ds")
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|| target.contains("vita")
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|| target.contains("aix")
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|| target.contains("nto")
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|| target.contains("xous")
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|| target.contains("hurd")
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|| target.contains("uefi")
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// See src/bootstrap/synthetic_targets.rs
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|| env::var("RUSTC_BOOTSTRAP_SYNTHETIC_TARGET").is_ok()
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{
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// These platforms don't have any special requirements.
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} else {
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// This is for Cargo's build-std support, to mark std as unstable for
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// typically no_std platforms.
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// This covers:
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// - os=none ("bare metal" targets)
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// - mipsel-sony-psp
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// - nvptx64-nvidia-cuda
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// - arch=avr
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// - JSON targets
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// - Any new targets that have not been explicitly added above.
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println!("cargo:rustc-cfg=feature=\"restricted-std\"");
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}
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println!("cargo:rustc-env=STD_ENV_ARCH={}", env::var("CARGO_CFG_TARGET_ARCH").unwrap());
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println!("cargo:rustc-cfg=backtrace_in_libstd");
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}
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