uucore: only export splice module in linux and android

src/uucore/src/lib/features.rs

@@ -49,7 +49,7 @@ pub mod pipes;
 pub mod proc_info;
 #[cfg(all(unix, feature = "process"))]
 pub mod process;
-#[cfg(all(unix, feature = "splice"))]
+#[cfg(all(any(target_os = "linux", target_os = "android"), feature = "splice"))]
 pub mod splice;
 #[cfg(all(target_os = "linux", feature = "tty"))]
 pub mod tty;