51 lines
1.4 KiB
Rust
51 lines
1.4 KiB
Rust
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use std::{env::VarError, path::Path};
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use pkg_config::Config;
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type Result<T, E = Box<dyn std::error::Error>> = std::result::Result<T, E>;
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fn env_var(var: &str) -> Result<String, VarError> {
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println!("cargo:rerun-if-env-changed={var}");
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std::env::var(var)
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}
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fn generate_bindings_file() -> Result<()> {
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let zbar = Config::new().atleast_version("0.23.0").probe("zbar")?;
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if env_var("ZBAR_STATIC").is_ok() {
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println!("cargo:rustc-link-lib=static=zbar");
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}
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let mut builder = bindgen::builder()
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.rustified_enum("zbar_color_e")
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.rustified_non_exhaustive_enum("zbar_symbol_type_e")
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.rustified_enum("zbar_orientation_e")
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.rustified_non_exhaustive_enum("zbar_error_e")
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.rustified_non_exhaustive_enum("zbar_config_e")
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.rustified_enum("zbar_modifier_e")
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.rustified_enum("video_control_type_e");
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for path in zbar.include_paths {
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builder = builder.clang_arg(format!("-I{}", path.display()));
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}
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let builder = builder.header("zbar-wrapper.h");
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let bindings = builder.generate()?;
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let out_path = Path::new(&env_var("OUT_DIR")?).join("bindings.rs");
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bindings.write_to_file(out_path)?;
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Ok(())
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}
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fn main() -> Result<()> {
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if let Err(e) = generate_bindings_file() {
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eprintln!("Building zbar-sys failed: {e}");
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eprintln!("Ensure zbar headers, libclang, and pkg-config are installed");
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return Err(e)
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}
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Ok(())
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}
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