croaring-sys 0.6.1

Raw bindings to CRoaring
Documentation 
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use std::env;
use std::path::PathBuf;

fn main() {
    println!("cargo:rerun-if-changed=CRoaring");
    println!("cargo:rerun-if-env-changed=ROARING_ARCH");

    let mut build = cc::Build::new();
    build.file("CRoaring/roaring.c");

    if let Ok(target_arch) = env::var("ROARING_ARCH") {
        build.flag_if_supported(&format!("-march={}", target_arch));
    }

    build.flag_if_supported("-Wno-unused-function");
    build.compile("roaring");

    let bindings = bindgen::Builder::default()
        .header("CRoaring/roaring.h")
        .generate_inline_functions(true)
        .allowlist_function("roaring.*")
        .allowlist_type("roaring.*")
        .allowlist_var("roaring.*")
        .allowlist_var("ROARING.*")
        .generate()
        .expect("Unable to generate bindings");

    let out_path = PathBuf::from(env::var("OUT_DIR").unwrap());
    bindings
        .write_to_file(out_path.join("croaring-sys.rs"))
        .expect("Couldn't write bindings!");
}