84 lines
2.4 KiB
Rust
84 lines
2.4 KiB
Rust
extern crate pkg_config;
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use std::env;
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fn main() {
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let target = env::var("TARGET").unwrap();
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// libressl_pnacl_sys links the libs needed.
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if target.ends_with("nacl") { return; }
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let lib_dir = env::var("OPENSSL_LIB_DIR").ok();
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let include_dir = env::var("OPENSSL_INCLUDE_DIR").ok();
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if lib_dir.is_none() && include_dir.is_none() {
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// rustc doesn't seem to work with pkg-config's output in mingw64
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if !target.contains("windows") {
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if let Ok(info) = pkg_config::find_library("openssl") {
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let paths = env::join_paths(info.include_paths).unwrap();
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println!("cargo:include={}", paths.to_str().unwrap());
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return;
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}
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}
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if let Some(mingw_paths) = get_mingw_in_path() {
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for path in mingw_paths {
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println!("cargo:rustc-link-search=native={}", path);
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}
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}
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}
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let libs_env = env::var("OPENSSL_LIBS").ok();
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let libs = match libs_env {
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Some(ref v) => v.split(":").collect(),
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None => if target.contains("windows") {
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if get_mingw_in_path().is_some() && lib_dir.is_none() && include_dir.is_none() {
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vec!["ssleay32", "eay32"]
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} else {
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vec!["ssl32", "eay32"]
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}
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} else {
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vec!["ssl", "crypto"]
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}
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};
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let mode = if env::var_os("OPENSSL_STATIC").is_some() {
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"static"
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} else {
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"dylib"
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};
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if let Some(lib_dir) = lib_dir {
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println!("cargo:rustc-link-search=native={}", lib_dir);
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}
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for lib in libs {
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println!("cargo:rustc-link-lib={}={}", mode, lib);
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}
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if let Some(include_dir) = include_dir {
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println!("cargo:include={}", include_dir);
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}
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}
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fn get_mingw_in_path() -> Option<Vec<String>> {
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match env::var_os("PATH") {
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Some(env_path) => {
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let paths: Vec<String> = env::split_paths(&env_path).filter_map(|path| {
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use std::ascii::AsciiExt;
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match path.to_str() {
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Some(path_str) => {
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if path_str.to_ascii_lowercase().contains("mingw") {
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Some(path_str.to_string())
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} else { None }
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},
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None => None
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}
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}).collect();
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if paths.len() > 0 { Some(paths) } else { None }
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},
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None => None
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}
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}
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