1 files changed, 28 insertions, 0 deletions
diff --git a/src/bootstrap/lib.rs b/src/bootstrap/lib.rs
new file mode 100644
index 00000000000..3158a3ab058
--- /dev/null
+++ b/src/bootstrap/lib.rs
@@ -0,0 +1,28 @@
+// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+use std::env;
+use std::ffi::OsString;
+use std::path::PathBuf;
+
+pub fn dylib_path_var() -> &'static str {
+    if cfg!(target_os = "windows") {
+        "PATH"
+    } else if cfg!(target_os = "macos") {
+        "DYLD_LIBRARY_PATH"
+    } else {
+        "LD_LIBRARY_PATH"
+    }
+}
+
+pub fn dylib_path() -> Vec<PathBuf> {
+    env::split_paths(&env::var_os(dylib_path_var()).unwrap_or(OsString::new()))
+        .collect()
+}