From 5ca02f2d165201de790c680e5a9cad11497704b2 Mon Sep 17 00:00:00 2001
From: Paul Colomiets <paul@colomiets.name>
Date: Thu, 6 Aug 2015 00:55:34 +0300
Subject: [PATCH] Add build script and LIBC_PATH environ variable

This helps building binaries with alternate libc, in particular musl
---
 Cargo.toml | 3 +++
 build.rs   | 7 +++++++
 2 files changed, 10 insertions(+)
 create mode 100644 build.rs

diff --git a/Cargo.toml b/Cargo.toml
index e3ae0e8c16b2b..9c19649c851cf 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -13,6 +13,7 @@ A library for types and bindings to native C functions often found in libc or
 other common platform libraries.
 """
 include = ["Cargo.toml", "rust/src/liblibc/*"]
+build = "build.rs"
 
 [features]
 default = ["cargo-build"]
@@ -21,3 +22,5 @@ cargo-build = []
 [lib]
 name = "libc"
 path = "rust/src/liblibc/lib.rs"
+
+
diff --git a/build.rs b/build.rs
new file mode 100644
index 0000000000000..30eae27437528
--- /dev/null
+++ b/build.rs
@@ -0,0 +1,7 @@
+use std::env;
+
+fn main() {
+    if let Ok(path) = env::var("LIBC_PATH") {
+        println!("cargo:rustc-link-search={}", path);
+    }
+}