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extern crate bindgen;
use std::collections::HashSet;
use std::env;
use std::path::PathBuf;
#[derive(Debug)]
struct IgnoreMacros(HashSet<String>);
impl bindgen::callbacks::ParseCallbacks for IgnoreMacros {
fn will_parse_macro(&self, name: &str) -> bindgen::callbacks::MacroParsingBehavior {
if self.0.contains(name) {
bindgen::callbacks::MacroParsingBehavior::Ignore
} else {
bindgen::callbacks::MacroParsingBehavior::Default
}
}
}
fn main() {
// Tell cargo to tell rustc to link the system bzip2
// shared library.
println!("cargo:rustc-link-lib=bz2");
let ignored_macros = IgnoreMacros(
vec![
// "FP_INFINITE".into(),
// "FP_NAN".into(),
// "FP_NORMAL".into(),
// "FP_SUBNORMAL".into(),
// "FP_ZERO".into(),
"IPPORT_RESERVED".into(),
]
.into_iter()
.collect(),
);
// 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("wrapper.h")
.parse_callbacks(Box::new(ignored_macros))
.rustfmt_bindings(true)
// 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());
bindings
.write_to_file(out_path.join("bindings.rs"))
.expect("Couldn't write bindings!");
}