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use std::env;
use std::path::PathBuf;
fn main() {
let profile = std::env::var("PROFILE").unwrap();
// Tell cargo to tell rustc to link the system Nginx unit
// shared library.
if profile == "debug" {
println!("cargo:rustc-link-lib=unit-debug");
} else {
println!("cargo:rustc-link-lib=unit");
}
// Use vendored headers for libunit for docs.rs's builder, in order to
// bypass the unit-dev dependency. This is only good enough for `cargo doc`
// and cannot support a full build.
let clang_args = if std::env::var("DOCS_RS").is_ok() {
&["-I./.docs.rs/libunit-1.27.0"][..]
} else {
&[]
};
// Tell cargo to invalidate the built crate whenever the wrapper changes
println!("cargo:rerun-if-changed=wrapper.h");
// The bindgen::Builder is the main entry point
// to bindgen, and lets you build up options for
// the resulting bindings.
let bindings = bindgen::Builder::default()
// The input header we would like to generate
// bindings for.
.header("wrapper.h")
// Use the vendored headers for docs.rs builds
.clang_args(clang_args)
// Tell cargo to invalidate the built crate whenever any of the
// included header files changed.
.parse_callbacks(Box::new(bindgen::CargoCallbacks))
// Finish the builder and generate the bindings.
.generate()
// Unwrap the Result and panic on failure.
.expect("Unable to generate bindings");
// Write the bindings to the $OUT_DIR/bindings.rs file.
let out_path = PathBuf::from(env::var("OUT_DIR").unwrap());
bindings
.write_to_file(out_path.join("bindings.rs"))
.expect("Couldn't write bindings!");
}