34 lines
957 B
Rust
34 lines
957 B
Rust
// Adapted from https://michael-f-bryan.github.io/rust-ffi-guide/cbindgen.html
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extern crate cbindgen;
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use std::env;
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use std::path::PathBuf;
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fn main() {
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let crate_dir = env::var("CARGO_MANIFEST_DIR").unwrap();
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let package_name = env::var("CARGO_PKG_NAME").unwrap();
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let output_file = target_dir()
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.join(format!("{}.h", package_name))
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.display()
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.to_string();
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cbindgen::Builder::new()
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.with_crate(crate_dir)
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.with_language(cbindgen::Language::C)
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.generate()
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.unwrap()
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.write_to_file(&output_file);
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}
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/// Find the location of the `target/` directory. Note that this may be
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/// overridden by `cmake`, so we also need to check the `CARGO_TARGET_DIR`
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/// variable.
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fn target_dir() -> PathBuf {
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if let Ok(target) = env::var("CARGO_TARGET_DIR") {
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PathBuf::from(target)
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} else {
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PathBuf::from(env::var("CARGO_MANIFEST_DIR").unwrap()).join("target")
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}
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}
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