mono-mcs 1.1.12-0ubuntu1 (i386 binary) in ubuntu dapper

Mono C# compiler
 This is the Mono C# (C-Sharp) compiler, a platform-independent compiler which
 produces CIL/.NET (Common Intermediate Language) binary executables, and the
 most development tools around it like ilasm, wsdl stub generator, assembly
 linker and security tools.
 .
 Mono is a platform for running and developing applications based on the
 ECMA/ISO Standards. Mono is an open source effort led by Novell.
 Mono provides a complete .NET CLR including compiler and runtime, which can
 produce and execute CIL bytecode (assemblies), and a .NET class library.