libcsp-rust/examples/build.rs

40 lines
1.5 KiB
Rust

use std::{env, path::PathBuf};
use libcsp_cargo_build::{generate_autoconf_header_file, Builder};
fn main() {
let out_dir = env::var("OUT_DIR").unwrap_or_default();
let manifest_dir = env::var("CARGO_MANIFEST_DIR").unwrap_or_default();
let manifest_path = PathBuf::from(&manifest_dir);
let lib_cfg_dir = "../clib/cfg/csp";
let libcsp_path = "../clib/libcsp";
// This helper structure will take care of the majority of work to compile libcsp using the
// cc crate.
let mut csp_builder = Builder::new(PathBuf::from(libcsp_path), PathBuf::from(&out_dir))
.expect("creating libcsp builder failed");
// A lot of spam we are not interested in usually.
csp_builder.compiler_warnings = false;
// We always re-generate the header file.
generate_autoconf_header_file(manifest_path.clone(), &csp_builder.cfg)
.expect("generating header file failed");
// Copy the file to lib/csp/cfg as well for binding generation.
std::fs::copy(
manifest_path.join("autoconfig.h"),
PathBuf::from(&lib_cfg_dir).join("autoconfig.h"),
)
.expect("copying autoconfig.h failed");
// This file is required for the compile-time configuration of libcsp-rust.
csp_builder
.generate_autoconf_rust_file(manifest_path)
.expect("generating autoconfig.rs failed");
csp_builder.compile().expect("compiling libcsp failed");
// If we change the libcsp build configuration, we need to re-run the build.
println!("cargo::rerun-if-changed=build.rs");
}