diff --git a/src/uucore/Cargo.toml b/src/uucore/Cargo.toml
index bb1cf397a..a62afa620 100644
--- a/src/uucore/Cargo.toml
+++ b/src/uucore/Cargo.toml
@@ -6,7 +6,20 @@ authors = []
 [dependencies]
 libc = { git = "https://github.com/rust-lang/libc.git" }
 getopts = "*"
-data-encoding = "^1.1"
+time = { version = "*", optional = true }
+data-encoding = { version = "^1.1", optional = true }
+
+[features]
+fs = []
+utf8 = []
+encoding = ["data-encoding"]
+parse_time = []
+utmpx = ["time"]
+c_types = []
+process = []
+signals = []
+wide = []
+default = ["fs", "utf8", "encoding", "parse_time", "utmpx", "c_types", "process", "signals", "wide"]
 
 [lib]
 path = "lib.rs"
diff --git a/src/uucore/lib.rs b/src/uucore/lib.rs
index bbe7bb713..61b3624ae 100644
--- a/src/uucore/lib.rs
+++ b/src/uucore/lib.rs
@@ -3,15 +3,25 @@ pub extern crate libc;
 #[macro_use]
 mod macros;
 
-pub mod fs;
-pub mod parse_time;
-pub mod utf8;
-pub mod encoding;
 pub mod coreopts;
 
-#[cfg(unix)] pub mod c_types;
-#[cfg(unix)] pub mod process;
-#[cfg(unix)] pub mod signals;
-#[cfg(unix)] pub mod utmpx;
+#[cfg(feature = "fs")]
+pub mod fs;
+#[cfg(feature = "utf8")]
+pub mod utf8;
+#[cfg(feature = "encoding")]
+pub mod encoding;
+#[cfg(feature = "parse_time")]
+pub mod parse_time;
 
-#[cfg(windows)] pub mod wide;
+#[cfg(all(unix, feature = "utmpx"))]
+pub mod utmpx;
+#[cfg(all(unix, feature = "c_types"))]
+pub mod c_types;
+#[cfg(all(unix, feature = "process"))]
+pub mod process;
+#[cfg(all(unix, feature = "signals"))]
+pub mod signals;
+
+#[cfg(all(windows, feature = "wide"))]
+pub mod wide;