Merge pull request #565 from sfackler/no-usr-lib

libc = "0.2"

[build-dependencies]

metadeps = "1"

pkg-config = "0.3.9"

[target.'cfg(windows)'.dependencies]

user32-sys = "0.2"

gdi32-sys = "0.2"

# We don't actually use metadeps for annoying reasons but this is still hear for tooling

[package.metadata.pkg-config]

openssl = "1.0.0" # We actually need 1.0.1, but OpenBSD reports as 1.0.0

openssl = "1.0.1"

extern crate metadeps;

extern crate pkg_config;

use std::collections::HashSet;

use std::env;

    // cflags dirs for showing us lots of `-I`.

    env::set_var("PKG_CONFIG_ALLOW_SYSTEM_CFLAGS", "1");

    let lib = match metadeps::probe() {

        Ok(mut libs) => libs.remove("openssl").unwrap(),

    // This is more complex than normal because we need to track down opensslconf.h.

    // To do that, we need the inlude paths even if they're on the default search path, but the

    // linkage directories emitted from that cause all kinds of issues if other libraries happen to

    // live in them. So, we run pkg-config twice, once asking for system dirs but not emitting

    // metadata, and a second time emitting metadata but not asking for system dirs. Yay.

    let lib = match pkg_config::Config::new()

        .cargo_metadata(false)

        .print_system_libs(true)

        .find("openssl") {

        Ok(lib) => lib,

        Err(_) => return,

    };

        println!("cargo:include={}", include.display());

    }

    pkg_config::Config::new()

        .print_system_libs(false)

        .find("openssl")

        .unwrap();

    std::process::exit(0);

}