[lmm]

> end-users probably wont care about compiling code.. otherwise a c/c++ compiler is ubiquotous

ghc is pretty ubiquitous these days. Any serious linux distro will have a package so it's one line (apt-get install ghc or similar). Even on e.g. a mac it's no harder than installing ruby or python.

> given the compiler is in haskel i cant access the AST for instance, i cant embed in my binary, but have to call another external binary instead

You could write Haskell. It's a pretty nice language.

More to the point, Haskell does have a C FFI and allows you to build a library that exposes a C interface that C programs can link against. I don't know whether the authors have done that here, but the functionality is available.