opencv-sdk 4.8.1

OpenCV SDK with C/C++/Python API compatibility layer
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use std::env;
use std::path::PathBuf;

fn main() {
    let crate_dir = env::var("CARGO_MANIFEST_DIR").unwrap();
    let package_name = env::var("CARGO_PKG_NAME").unwrap();
    let output_file = PathBuf::from(&crate_dir)
        .join("target")
        .join(format!("{}.h", package_name));

    cbindgen::Builder::new()
        .with_crate(crate_dir)
        .with_language(cbindgen::Language::C)
        .generate()
        .expect("Unable to generate bindings")
        .write_to_file(output_file);
}