fix warning

japaric · Sep 5, 2017 · b96e9ff · b96e9ff
1 parent 517a614
commit b96e9ff
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/src/main.rs b/src/main.rs
@@ -3,6 +3,8 @@
 #[macro_use]
 extern crate error_chain;
 extern crate fs2;
+#[cfg(any(all(target_os = "linux", not(target_env = "musl")),
+          target_os = "macos"))]
 extern crate libc;
 extern crate rustc_version;
 extern crate serde_json;