src/libstd/build.rs

   1 // Copyright 2015 The Rust Project Developers. See the COPYRIGHT
   2 // file at the top-level directory of this distribution and at
   3 // http://rust-lang.org/COPYRIGHT.
   4 //
   5 // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
   6 // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
   7 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
   8 // option. This file may not be copied, modified, or distributed
   9 // except according to those terms.
  10
  11 #![deny(warnings)]
  12
  13 extern crate build_helper;
  14
  15 use std::env;
  16 use std::process::Command;
  17 use build_helper::{run, native_lib_boilerplate};
  18
  19 fn main() {
  20     let target = env::var("TARGET").expect("TARGET was not set");
  21     let host = env::var("HOST").expect("HOST was not set");
  22     if cfg!(feature = "backtrace") &&
  23         !target.contains("cloudabi") &&
  24         !target.contains("emscripten") &&
  25         !target.contains("fuchsia") &&
  26         !target.contains("msvc") &&
  27         !target.contains("wasm32")
  28     {
  29         let _ = build_libbacktrace(&host, &target);
  30     }
  31
  32     if target.contains("linux") {
  33         if target.contains("android") {
  34             println!("cargo:rustc-link-lib=dl");
  35             println!("cargo:rustc-link-lib=log");
  36             println!("cargo:rustc-link-lib=gcc");
  37         } else if !target.contains("musl") {
  38             println!("cargo:rustc-link-lib=dl");
  39             println!("cargo:rustc-link-lib=rt");
  40             println!("cargo:rustc-link-lib=pthread");
  41         }
  42     } else if target.contains("freebsd") {
  43         println!("cargo:rustc-link-lib=execinfo");
  44         println!("cargo:rustc-link-lib=pthread");
  45     } else if target.contains("dragonfly") || target.contains("bitrig") ||
  46               target.contains("netbsd") || target.contains("openbsd") {
  47         println!("cargo:rustc-link-lib=pthread");
  48     } else if target.contains("solaris") {
  49         println!("cargo:rustc-link-lib=socket");
  50         println!("cargo:rustc-link-lib=posix4");
  51         println!("cargo:rustc-link-lib=pthread");
  52         println!("cargo:rustc-link-lib=resolv");
  53     } else if target.contains("apple-darwin") {
  54         println!("cargo:rustc-link-lib=System");
  55
  56         // res_init and friends require -lresolv on macOS/iOS.
  57         // See #41582 and http://blog.achernya.com/2013/03/os-x-has-silly-libsystem.html
  58         println!("cargo:rustc-link-lib=resolv");
  59     } else if target.contains("apple-ios") {
  60         println!("cargo:rustc-link-lib=System");
  61         println!("cargo:rustc-link-lib=objc");
  62         println!("cargo:rustc-link-lib=framework=Security");
  63         println!("cargo:rustc-link-lib=framework=Foundation");
  64         println!("cargo:rustc-link-lib=resolv");
  65     } else if target.contains("windows") {
  66         println!("cargo:rustc-link-lib=advapi32");
  67         println!("cargo:rustc-link-lib=ws2_32");
  68         println!("cargo:rustc-link-lib=userenv");
  69         println!("cargo:rustc-link-lib=shell32");
  70     } else if target.contains("fuchsia") {
  71         // use system-provided libbacktrace
  72         if cfg!(feature = "backtrace") {
  73             println!("cargo:rustc-link-lib=backtrace");
  74         }
  75         println!("cargo:rustc-link-lib=zircon");
  76         println!("cargo:rustc-link-lib=fdio");
  77         println!("cargo:rustc-link-lib=launchpad"); // for std::process
  78     } else if target.contains("cloudabi") {
  79         if cfg!(feature = "backtrace") {
  80             println!("cargo:rustc-link-lib=unwind");
  81         }
  82         println!("cargo:rustc-link-lib=c");
  83         println!("cargo:rustc-link-lib=compiler_rt");
  84     }
  85 }
  86
  87 fn build_libbacktrace(host: &str, target: &str) -> Result<(), ()> {
  88     let native = native_lib_boilerplate("libbacktrace", "libbacktrace", "backtrace", ".libs")?;
  89     let cflags = env::var("CFLAGS").unwrap_or_default() + " -fvisibility=hidden -O2";
  90
  91     run(Command::new("sh")
  92                 .current_dir(&native.out_dir)
  93                 .arg(native.src_dir.join("configure").to_str().unwrap()
  94                                    .replace("C:\\", "/c/")
  95                                    .replace("\\", "/"))
  96                 .arg("--with-pic")
  97                 .arg("--disable-multilib")
  98                 .arg("--disable-shared")
  99                 .arg("--disable-host-shared")
 100                 .arg(format!("--host={}", build_helper::gnu_target(target)))
 101                 .arg(format!("--build={}", build_helper::gnu_target(host)))
 102                 .env("CFLAGS", cflags));
 103
 104     run(Command::new(build_helper::make(host))
 105                 .current_dir(&native.out_dir)
 106                 .arg(format!("INCDIR={}", native.src_dir.display()))
 107                 .arg("-j").arg(env::var("NUM_JOBS").expect("NUM_JOBS was not set")));
 108     Ok(())
 109 }