hidapi 0.3.0

Rust-y wrapper around hidapi
Documentation 
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/****************************************************************************
    Copyright (c) 2015 Roland Ruckerbauer All Rights Reserved.

    This file is part of hidapi_rust.

    hidapi_rust is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    hidapi_rust is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with hidapi_rust.  If not, see <http://www.gnu.org/licenses/>.
****************************************************************************/

extern crate gcc;
extern crate pkg_config;

fn main() {
    compile();
}

#[cfg(target_os = "linux")]
fn compile() {
    let mut config = gcc::Config::new();
    config.file("etc/hidapi/libusb/hid.c").include("etc/hidapi/hidapi");
    let lib = pkg_config::find_library("libusb-1.0").unwrap();
    for path in lib.include_paths {
        config.include(path.to_str().unwrap());
    }
    config.compile("libhidapi.a");
}

#[cfg(target_os = "windows")]
fn compile() {
    gcc::Config::new()
            .file("etc/hidapi/windows/hid.c")
            .include("etc/hidapi/hidapi")
            .compile("libhidapi.a");
    println!("cargo:rustc-link-lib=setupapi");
}

#[cfg(target_os = "macos")]
fn compile() {
    gcc::Config::new()
            .file("etc/hidapi/mac/hid.c")
            .include("etc/hidapi/hidapi")
            .compile("libhidapi.a");
    println!("cargo:rustc-link-lib=framework=IOKit");
    println!("cargo:rustc-link-lib=framework=CoreFoundation");
}