dectalk 0.1.0

Rust bindings for DECTalk text-to-speech
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47

use std::env;
use std::path::PathBuf;

use cmake::Config;

fn main() {
    let out_dir = PathBuf::from(env::var("OUT_DIR").expect("OUT_DIR environment variable not set"));

    // Copy dectalk source into OUT_DIR
    let dectalk_source_path =
        PathBuf::from(&env::var("CARGO_MANIFEST_DIR").unwrap()).join("dectalk");
    let dectalk_path = out_dir.join("dectalk");

    dircpy::copy_dir(dectalk_source_path, &dectalk_path)
        .expect("Failed to copy DECTalk to OUT_DIR");

    // Builds the project in the directory located in `libfoo`, installing it
    // into $OUT_DIR
    let dst = Config::new(&dectalk_path)
        .cxxflag("-DCMAKE_INSTALL_PREFIX=$OUT_DIR")
        .build();

    println!("cargo:rustc-link-search=native={}/lib", dst.display());
    println!("cargo:rustc-link-lib=dylib=dectalk");

    let libdir_path = dst
        .join("include")
        .canonicalize()
        .expect("Can not canonicalize path");
    let libdir_str = libdir_path.to_str().expect("Path is not a valid string");

    // Generate bindings
    let bindings = bindgen::Builder::default()
        .header("wrapper.h")
        // Add include directory
        .clang_arg(format!("-I{libdir_str}"))
        // Tell cargo to invalidate the built crate whenever any of the
        // included header files changed.
        .parse_callbacks(Box::new(bindgen::CargoCallbacks::new()))
        .generate()
        .expect("Unable to generate bindings");

    // Write the bindings to the $OUT_DIR/bindings.rs file.
    bindings
        .write_to_file(out_dir.join("bindings.rs"))
        .expect("Couldn't write bindings!");
}