use autotools::Config;
use std::env;
use std::path::PathBuf;

fn main() {
    // Here we ask `make` to change directory to the source's lib
    // subdirectory, as a roundabout way of disabling documentation builds,
    // since these fail without `makeinfo` being present. There otherwise
    // appears to be no way to disable the building of the docs, and hence,
    // the otherwise necessary addition of a useless system dependency
    let out_path_lib = PathBuf::from(env::var("OUT_DIR").unwrap())
        .join("build/lib");

    // Build with autotools
    Config::new("gperf")
        .make_args(vec!["-C".to_string(), out_path_lib.display().to_string()])
        .build();

    // Fix the output search path so we can find the built library
    println!("cargo:rustc-link-search=native={}", out_path_lib.display());
    println!("cargo:rustc-link-lib=static=gp");
}