sgx_tstd/build.rs

// Copyright (C) 2017-2018 Baidu, Inc. All Rights Reserved.
//
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extern crate sgx_build_helper as 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") {
        let _ = build_libbacktrace(&host, &target);

        println!("cargo:rustc-cfg=RUST_BACKTRACE=\"1\"");
        //println!("cargo:rustc-cfg=RUST_BACKTRACE=\"full\"");
    }
}

fn build_libbacktrace(host: &str, target: &str) -> Result<(), ()> {
    let native = native_lib_boilerplate("sgx_tstd/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(())
}