pyo3/pyo3-ffi-check/build.rs

38 lines
1.3 KiB
Rust

use std::env;
use std::path::PathBuf;
fn main() {
let config = pyo3_build_config::get();
let python_include_dir = config
.run_python_script(
"import sysconfig; print(sysconfig.get_config_var('INCLUDEPY'), end='');",
)
.expect("failed to get lib dir");
println!("cargo:rerun-if-changed=wrapper.h");
dbg!(format!("-I{python_include_dir}"));
let bindings = bindgen::Builder::default()
.header("wrapper.h")
.clang_arg(format!("-I{python_include_dir}"))
.parse_callbacks(Box::new(bindgen::CargoCallbacks))
// blocklist some values which apparently have conflicting definitions on unix
.blocklist_item("FP_NORMAL")
.blocklist_item("FP_SUBNORMAL")
.blocklist_item("FP_NAN")
.blocklist_item("FP_INFINITE")
.blocklist_item("FP_INT_UPWARD")
.blocklist_item("FP_INT_DOWNWARD")
.blocklist_item("FP_INT_TOWARDZERO")
.blocklist_item("FP_INT_TONEARESTFROMZERO")
.blocklist_item("FP_INT_TONEAREST")
.blocklist_item("FP_ZERO")
.generate()
.expect("Unable to generate bindings");
let out_path = PathBuf::from(env::var("OUT_DIR").unwrap());
bindings
.write_to_file(out_path.join("bindings.rs"))
.expect("Couldn't write bindings!");
}