path.rs

#![allow(dead_code)]
use std::path::PathBuf;
use std::env;

fn find_abs_lib_path(lib_name: &str) -> Result<PathBuf, &str> {
    let mut search_paths = vec![];

    if let Some(ld_library_path) = env::var_os("LD_LIBRARY_PATH") {
        search_paths.extend(env::split_paths(&ld_library_path));
    }

    if let Some(path) = env::var_os("PATH") {
        search_paths.extend(env::split_paths(&path));
    }

    search_paths.extend(["/lib64", "/usr/lib"].iter().map(PathBuf::from));

    for base_path in search_paths {
        let path = base_path.join(lib_name);
        if path.exists() {
            return Ok(path);
        }
    }

    Err("Failed to find lib")
}