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// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
#![deny(warnings)]
extern crate build_helper;
use std::env;
use std::process::Command;
use build_helper::{run, native_lib_boilerplate};
fn main() {
let target = env::var("TARGET").expect("TARGET was not set");
let host = env::var("HOST").expect("HOST was not set");
if cfg!(feature = "backtrace") &&
!target.contains("cloudabi") &&
!target.contains("emscripten") &&
!target.contains("fuchsia") &&
!target.contains("msvc") &&
!target.contains("wasm32")
{
let _ = build_libbacktrace(&host, &target);
}
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("musl") {
println!("cargo:rustc-link-lib=dl");
println!("cargo:rustc-link-lib=rt");
println!("cargo:rustc-link-lib=pthread");
}
} else if target.contains("freebsd") {
println!("cargo:rustc-link-lib=execinfo");
println!("cargo:rustc-link-lib=pthread");
} else if target.contains("dragonfly") || target.contains("bitrig") ||
target.contains("netbsd") || 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("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("windows") {
println!("cargo:rustc-link-lib=advapi32");
println!("cargo:rustc-link-lib=ws2_32");
println!("cargo:rustc-link-lib=userenv");
println!("cargo:rustc-link-lib=shell32");
} else if target.contains("fuchsia") {
// use system-provided libbacktrace
if cfg!(feature = "backtrace") {
println!("cargo:rustc-link-lib=backtrace");
}
println!("cargo:rustc-link-lib=zircon");
println!("cargo:rustc-link-lib=fdio");
println!("cargo:rustc-link-lib=launchpad"); // for std::process
} 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");
}
}
fn build_libbacktrace(host: &str, target: &str) -> Result<(), ()> {
let native = native_lib_boilerplate("libbacktrace", "libbacktrace", "backtrace", ".libs")?;
let cflags = env::var("CFLAGS").unwrap_or_default() + " -fvisibility=hidden -O2";
run(Command::new("sh")
.current_dir(&native.out_dir)
.arg(native.src_dir.join("configure").to_str().unwrap()
.replace("C:\\", "/c/")
.replace("\\", "/"))
.arg("--with-pic")
.arg("--disable-multilib")
.arg("--disable-shared")
.arg("--disable-host-shared")
.arg(format!("--host={}", build_helper::gnu_target(target)))
.arg(format!("--build={}", build_helper::gnu_target(host)))
.env("CFLAGS", cflags));
run(Command::new(build_helper::make(host))
.current_dir(&native.out_dir)
.arg(format!("INCDIR={}", native.src_dir.display()))
.arg("-j").arg(env::var("NUM_JOBS").expect("NUM_JOBS was not set")));
Ok(())
}
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