Modularize rustc-serialize support

* Add rustc-serialize as a default feature
* Make room for for serde support

1 files changed, 7 insertions, 1 deletions

diff --git a/Cargo.toml b/Cargo.toml
index cf33dc1..102f63d 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -16,4 +16,10 @@ facilitate deserializing and serializing Rust structures.
 """
 
 [dependencies]
-rustc-serialize = "0.3.0"
+rustc-serialize = { optional = true, version = "0.3.0" }
+
+[features]
+default = ["rustc-serialize"]
+
+[dev-dependencies]
+rustc-serialize = "0.3"