diff --git a/.travis.yml b/.travis.yml
index c53fcf1e21e60724a793bc5f3c36039fad289a80..fab85e7794f529e3733674567b380777fbaa96dc 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,5 +1,6 @@
 language: rust
 sudo: required
+dist: trusty
 rust:
   - 1.0.0
   - beta
diff --git a/src/unix/mod.rs b/src/unix/mod.rs
index 93dd856b1e4f86efd453cfcc3d32fdd1fe58b844..3dc7f626b4ac6d9386f35d0d9c0a3eeab7eb7d58 100644
--- a/src/unix/mod.rs
+++ b/src/unix/mod.rs
@@ -105,9 +105,14 @@ cfg_if! {
     } else if #[cfg(target_env = "musl")] {
         #[link(name = "c", kind = "static")]
         extern {}
+    } else if #[cfg(any(target_os = "macos", target_os = "ios"))] {
+        #[link(name = "c")]
+        #[link(name = "m")]
+        extern {}
     } else {
         #[link(name = "c")]
         #[link(name = "m")]
+        #[link(name = "rt")]
         extern {}
     }
 }