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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("linux") {
if target.contains("android") {
println!("cargo:rustc-link-lib=dl");
println!("cargo:rustc-link-lib=log");
println!("cargo:rustc-link-lib=gcc");
}
} else if target.contains("freebsd") {
println!("cargo:rustc-link-lib=execinfo");
println!("cargo:rustc-link-lib=pthread");
if env::var("RUST_STD_FREEBSD_12_ABI").is_ok() {
println!("cargo:rustc-cfg=freebsd12");
}
} else if target.contains("netbsd") {
println!("cargo:rustc-link-lib=pthread");
println!("cargo:rustc-link-lib=rt");
} else if target.contains("dragonfly") || target.contains("openbsd") {
println!("cargo:rustc-link-lib=pthread");
} else if target.contains("solaris") {
println!("cargo:rustc-link-lib=socket");
println!("cargo:rustc-link-lib=posix4");
println!("cargo:rustc-link-lib=pthread");
println!("cargo:rustc-link-lib=resolv");
} else if target.contains("illumos") {
println!("cargo:rustc-link-lib=socket");
println!("cargo:rustc-link-lib=posix4");
println!("cargo:rustc-link-lib=pthread");
println!("cargo:rustc-link-lib=resolv");
println!("cargo:rustc-link-lib=nsl");
// Use libumem for the (malloc-compatible) allocator
println!("cargo:rustc-link-lib=umem");
} else if target.contains("apple-darwin") {
println!("cargo:rustc-link-lib=System");
// res_init and friends require -lresolv on macOS/iOS.
// See #41582 and http://blog.achernya.com/2013/03/os-x-has-silly-libsystem.html
println!("cargo:rustc-link-lib=resolv");
} else if target.contains("apple-ios") {
println!("cargo:rustc-link-lib=System");
println!("cargo:rustc-link-lib=objc");
println!("cargo:rustc-link-lib=framework=Security");
println!("cargo:rustc-link-lib=framework=Foundation");
println!("cargo:rustc-link-lib=resolv");
} else if target.contains("uwp") {
println!("cargo:rustc-link-lib=ws2_32");
// For BCryptGenRandom
println!("cargo:rustc-link-lib=bcrypt");
} else if target.contains("windows") {
println!("cargo:rustc-link-lib=advapi32");
println!("cargo:rustc-link-lib=ws2_32");
println!("cargo:rustc-link-lib=userenv");
} else if target.contains("fuchsia") {
println!("cargo:rustc-link-lib=zircon");
println!("cargo:rustc-link-lib=fdio");
} else if target.contains("cloudabi") {
if cfg!(feature = "backtrace") {
println!("cargo:rustc-link-lib=unwind");
}
println!("cargo:rustc-link-lib=c");
println!("cargo:rustc-link-lib=compiler_rt");
} else if (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("asmjs")
{
// 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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