notcurses/rust/build/build.rs
nick black 537caa2173
v2.0.5
2020-11-21 22:29:02 -05:00

55 lines
1.9 KiB
Rust

extern crate bindgen;
extern crate pkg_config;
use std::env;
use std::path::PathBuf;
// largely taken from https://rust-lang.github.io/rust-bindgen/tutorial-3.html
fn main() {
let plib = pkg_config::Config::new()
.atleast_version("2.0.5")
.probe("notcurses")
.unwrap();
// Tell cargo to invalidate the built crate whenever the wrapper changes
println!("cargo:rerun-if-changed=build/wrapper.h");
cc::Build::new()
.file("build/stdout.c")
.compile("stdout");
// The bindgen::Builder is the main entry point to bindgen, and lets you
// build up options for the resulting bindings.
let mut builder = bindgen::Builder::default()
.use_core()
.ctypes_prefix("cty")
.clang_arg("-D_XOPEN_SOURCE")
// The input header we would like to generate builder for.
.header("build/wrapper.h")
// generate comments, also from headers and not just doc comments (///)
.generate_comments(true)
.clang_arg("-fretain-comments-from-system-headers")
.clang_arg("-fparse-all-comments")
// Remove warnings about improper_ctypes
.blacklist_function("strtold")
.blacklist_function("wcstold")
// Tell cargo to invalidate the built crate whenever any of the
// included header files changed.
.parse_callbacks(Box::new(bindgen::CargoCallbacks));
for d in plib.include_paths {
builder = builder.clang_arg(format!("-I{}", d.to_string_lossy()));
}
// Finish the builder and generate the builder.
let bindings = builder.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!");
}