58 lines
2.1 KiB
Rust
58 lines
2.1 KiB
Rust
use make_cmd;
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use std::env;
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use std::path::{Path, PathBuf};
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fn main() {
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// This is the directory where the `c` library is located.
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let libdir_path = PathBuf::from("mlkem-native/mlkem")
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// Canonicalize the path as `rustc-link-search` requires an absolute
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// path.
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.canonicalize()
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.expect("cannot canonicalize path");
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// This is the path to the `c` headers file.
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let headers_path = libdir_path.join("mlkem_native.h");
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let headers_path_str = headers_path.to_str().expect("Path is not a valid string");
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// Tell cargo to look for shared libraries in the specified directory
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println!("cargo:rustc-link-search={}", libdir_path.to_str().unwrap());
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// Tell cargo to tell rustc to link our `hello` library. Cargo will
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// automatically know it must look for a `libhello.a` file.
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println!("cargo:rustc-link-lib=mlkem-native/test/build");
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let mlkem_native_path = PathBuf::from("mlkem-native")
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.canonicalize()
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.expect("cannot canonicalize path");
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if !make_cmd::make()
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.current_dir(mlkem_native_path)
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.output()
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.expect("could not compile mlkem-native")
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.status
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.success()
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{
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panic!("could not compile mlkem-native");
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}
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// The bindgen::Builder is the main entry point
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// to bindgen, and lets you build up options for
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// the resulting bindings.
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let bindings = bindgen::Builder::default()
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// The input header we would like to generate
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// bindings for.
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.header(headers_path_str)
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// Tell cargo to invalidate the built crate whenever any of the
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// included header files changed.
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.parse_callbacks(Box::new(bindgen::CargoCallbacks::new()))
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// Finish the builder and generate the bindings.
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.generate()
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// Unwrap the Result and panic on failure.
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.expect("Unable to generate bindings");
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// Write the bindings to the $OUT_DIR/bindings.rs file.
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let out_path = PathBuf::from(env::var("OUT_DIR").unwrap()).join("bindings.rs");
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bindings
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.write_to_file(out_path)
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.expect("Couldn't write bindings!");
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}
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