rustecal-sys 0.1.6

Raw FFI bindings to Eclipse eCAL C API
Documentation 
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
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65

use std::{env, path::PathBuf};

fn main() {
    if std::env::var("DOCS_RS").is_ok() || std::env::var("CARGO_DOC").is_ok() {
        println!("cargo:warning=Skipping bindgen during documentation");
        return;
    }
    // Prepare bindgen builder
    let mut builder = bindgen::Builder::default()
        .header("wrapper.h")
        .allowlist_function("eCAL_.*")
        .allowlist_type("eCAL_.*")
        .allowlist_var("eCAL_.*")
        .layout_tests(false)
        .generate_comments(true)
        .derive_default(true)
        .wrap_unsafe_ops(true);

    if cfg!(target_os = "windows") {
        // --- Windows: Use ECAL_HOME ---
        let ecal_home =
            env::var("ECAL_HOME").expect("ECAL_HOME environment variable must be set on Windows");
        let include_path = format!("{ecal_home}/include");
        let lib_path = format!("{ecal_home}/lib");

        println!("cargo:rustc-link-search=native={lib_path}");
        println!("cargo:rustc-link-lib=static=ecal_core_c");

        builder = builder.clang_arg(format!("-I{include_path}"));

        // Debug info
        println!("cargo:warning=Building on Windows");
        println!("cargo:warning=Using ECAL_HOME = {ecal_home}");
    } else if cfg!(target_os = "linux") {
        match env::var("ECAL_HOME") {
            Ok(ecal_home) => {
                println!("cargo:warning=Using ECAL_HOME = {ecal_home}");
                let include_path = format!("{ecal_home}/include");
                let lib_path = format!("{ecal_home}/lib");

                println!("cargo:rustc-link-search=native={lib_path}");

                builder = builder.clang_arg(format!("-I{include_path}"));
            }
            _ => {
                println!("cargo:warning=Using system-wide eCAL install");
            }
        };

        println!("cargo:rustc-link-lib=dylib=ecal_core_c");

        // Debug info
        println!("cargo:warning=Building on Linux");
    } else {
        panic!("Unsupported platform for rustecal-sys build");
    }

    // Final bindgen output
    let bindings = builder.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!");
}