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use std::env;
fn main() {
println!("cargo:rerun-if-changed=build.rs");
let target = env::var("TARGET").expect("TARGET was not set");
if target.contains("freebsd") {
if env::var("RUST_STD_FREEBSD_12_ABI").is_ok() {
println!("cargo:rustc-cfg=freebsd12");
}
} else if target.contains("linux")
|| target.contains("netbsd")
|| target.contains("dragonfly")
|| target.contains("openbsd")
|| target.contains("solaris")
|| target.contains("illumos")
|| target.contains("apple-darwin")
|| target.contains("apple-ios")
|| target.contains("apple-watchos")
|| target.contains("uwp")
|| target.contains("windows")
|| target.contains("fuchsia")
|| (target.contains("sgx") && target.contains("fortanix"))
|| target.contains("hermit")
|| target.contains("l4re")
|| target.contains("redox")
|| target.contains("haiku")
|| target.contains("vxworks")
|| target.contains("wasm32")
|| target.contains("wasm64")
|| target.contains("asmjs")
|| target.contains("espidf")
|| target.contains("solid")
|| target.contains("nintendo-3ds")
{
// These platforms don't have any special requirements.
} else {
// This is for Cargo's build-std support, to mark std as unstable for
// typically no_std platforms.
// This covers:
// - os=none ("bare metal" targets)
// - mipsel-sony-psp
// - nvptx64-nvidia-cuda
// - arch=avr
// - tvos (aarch64-apple-tvos, x86_64-apple-tvos)
// - uefi (x86_64-unknown-uefi, i686-unknown-uefi)
// - JSON targets
// - Any new targets that have not been explicitly added above.
println!("cargo:rustc-cfg=feature=\"restricted-std\"");
}
println!("cargo:rustc-env=STD_ENV_ARCH={}", env::var("CARGO_CFG_TARGET_ARCH").unwrap());
println!("cargo:rustc-cfg=backtrace_in_libstd");
}
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