cfg_if::cfg_if! {
if #[cfg(not(feature="generate_docs"))] {
use std::env;
use std::path::Path;
const AMENT_PREFIX_PATH: &str = "AMENT_PREFIX_PATH";
fn get_env_var_or_abort(env_var: &'static str) -> String {
if let Ok(value) = env::var(env_var) {
value
} else {
panic!(
"{} environment variable not set - please source ROS 2 installation first.",
env_var
);
}
}
}
}
fn main() {
#[cfg(not(feature = "generate_docs"))]
{
let ament_prefix_path_list = get_env_var_or_abort(AMENT_PREFIX_PATH);
for ament_prefix_path in ament_prefix_path_list.split(':') {
let library_path = Path::new(ament_prefix_path).join("lib");
println!("cargo:rustc-link-search=native={}", library_path.display());
}
}
println!("cargo:rerun-if-changed=build.rs");
}