Currently most of SDL2 is supported, but there are a few rough edges.
The tutorials can be run as:
under Linux. Under Windows, you can:
cd c:\path\to\sdlforth include tutorial/01_hello_world.f
and get the same result. I have not yet tested this on Mac OS X, but it should run same as Linux with the appropriate .so file.
Currently most OSes ship with 64 bit builds of SDL2, but SwiftForth is still just a 32 bit application. This can result in a failure to launch. This repository contains 32 bit .so and .dll files locally so that it can run on Linux and Windows resprectively. For your application, you will need to make sure that they're in a path that SwiftForth can find.
Dave Goehrig firstname.lastname@example.org