mirror of
https://github.com/urbit/ares.git
synced 2024-11-26 20:58:02 +03:00
78 lines
2.5 KiB
Rust
78 lines
2.5 KiB
Rust
extern crate bindgen;
|
|
|
|
use std::env;
|
|
use std::path::PathBuf;
|
|
|
|
fn main() {
|
|
let opt_level = env::var("OPT_LEVEL").unwrap();
|
|
let define_debug = if env::var("CARGO_FEATURE_DEBUG_PRINTS").is_ok() {
|
|
"-DDEBUG"
|
|
} else {
|
|
"-UDEBUG"
|
|
};
|
|
|
|
// This is the directory where the `c` library is located.
|
|
let libdir_path = PathBuf::from("c-src")
|
|
// Canonicalize the path as `rustc-link-search` requires an absolute
|
|
// path.
|
|
.canonicalize()
|
|
.expect("cannot canonicalize path");
|
|
let libdir_path_str = libdir_path.to_str().expect("Path is not a valid string");
|
|
|
|
// This is the path to the `c` headers file.
|
|
let headers_path = libdir_path.join("wrapper.h");
|
|
let headers_path_str = headers_path.to_str().expect("Path is not a valid string");
|
|
|
|
println!("cargo:rerun-if-changed={}", libdir_path_str);
|
|
|
|
let res = cc::Build::new()
|
|
.file(
|
|
libdir_path
|
|
.join("guard.c")
|
|
.to_str()
|
|
.expect("Path is not a valid string"),
|
|
)
|
|
.flag(format!("-O{}", opt_level).as_ref())
|
|
.flag(define_debug)
|
|
.flag("-g3")
|
|
.flag("-Wall")
|
|
.flag("-Wextra")
|
|
.flag("-Wformat=2")
|
|
.flag("-Wmissing-include-dirs")
|
|
.flag("-Wnested-externs")
|
|
.flag("-Wpedantic")
|
|
.flag("-Wredundant-decls")
|
|
.flag("-Wshadow")
|
|
.flag("-Wwrite-strings")
|
|
.flag("-Wno-unused-parameter")
|
|
.flag("-Wno-pointer-arith")
|
|
.flag("-Wno-strict-prototypes")
|
|
.flag("-Wno-unused-function")
|
|
.try_compile("guard");
|
|
|
|
if let Err(err) = res {
|
|
panic!("{}", err);
|
|
}
|
|
|
|
// 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(headers_path_str)
|
|
// Tell cargo to invalidate the built crate whenever any of the
|
|
// included header files changed.
|
|
.parse_callbacks(Box::new(bindgen::CargoCallbacks::new()))
|
|
// 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()).join("bindings.rs");
|
|
bindings
|
|
.write_to_file(out_path)
|
|
.expect("Couldn't write bindings!");
|
|
}
|