patches/std.diff

diff --git b/src/lib.rs a/src/lib.rs
index 6198e98..48ac257 100644
--- b/src/lib.rs
+++ a/src/lib.rs
@@ -6,6 +6,9 @@
 #![allow(unknown_lints)]
 #![doc(html_root_url = "https://docs.rs/pin-utils/0.1.0")]
 
+// ANDROID: Use std to allow building as a dylib.
+extern crate std;
+
 #[doc(hidden)]
 pub mod core_reexport {
     pub use core::*;