looking for a serialization library

[aj3423]

Hi
I'm looking for a serialization library, I'v tried several of them but they all have their limitation

0. boost - it's too huge and complex, too hard to learn
1. eternity - it doesn't support non-intrusive serialization
2. s11n - doesn't support saving as binary format, which makes the file very large
3. google protocol buffer - it requires some extra work like precompilation

Any other library?
Thanks.