64 lines
2.2 KiB
Rust
64 lines
2.2 KiB
Rust
use std::{env, path::PathBuf};
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fn main() {
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let project_dir = env::var("CARGO_MANIFEST_DIR").unwrap();
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// Pass some important build script environment variables to the binary/library.
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// Remove this at a later stage, this belongs in a concrete example app.
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/*
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println!(
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"cargo:rustc-env=TARGET={}",
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std::env::var("TARGET").unwrap()
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);
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println!(
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"cargo:rustc-env=OUT_DIR={}",
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std::env::var("OUT_DIR").unwrap()
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);
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println!(
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"cargo:rustc-env=OPT_LEVEL={}",
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std::env::var("OPT_LEVEL").unwrap()
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);
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println!("cargo:rustc-env=HOST={}", std::env::var("HOST").unwrap());
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*/
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// Tell cargo to tell rustc to link our `csp` library. Cargo will
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// automatically know it must look for a `libcsp.a` file.
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println!("cargo:rustc-link-lib=csp");
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// println!("cargo:rustc-link-search={}/csp", project_dir);
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// let mut csp_builder = Builder::new();
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// csp_builder.compile();
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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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// Write the bindings to the $OUT_DIR/bindings.rs file.
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/*
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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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if let Ok(_str) = env::var("GEN_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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.clang_arg("-Ilibcsp/include")
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.clang_arg("-Icfg")
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.header("wrapper.h")
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.use_core()
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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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let local_path = PathBuf::from("./bindings.rs");
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bindings
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.write_to_file(local_path)
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.expect("Couldn't write bindings!");
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}
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}
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