Hi Armando, and season's greets to you too! It's nice to see you around.
Regarding the current interpretative FBSL BASIC version, it cannot be ported
anywhere. I have strong doubts as to whether it can stand even as little as an attempt to change its compiler to anything other than GCC 4.3.3.
OTOH a new version of FBSL (whatever the name is that it's going to go by) is being redesigned from ground up to be 100% jitter-based w/ optional static compilation as well as 64-bit and multi-platform compatibility. I have rough sketches of console-/terminal-only solutions for Windows, Linux, and Mac OS X (jitter only, no static compilation on this platform yet).
The new version should not be less feature-rich than the current v3.5. So, this is still leaving me at a loss with the GUI part of it. Like its predecessors, the new version is going to be a closed-source project and thus incompatible with your library and its prototype's licenses. Though I must admit your ClaroMac pill did bring me a few happy/trippy moments learning my way through the basics of windowed Linux and Mac OS X frameworks. And I am grateful for this, Armando.
I'm still waiting for the TCC team to complete their leisury transition from GPL to MIT and allow me to use their code freely and in full as the basis for my JIT engine implementation. The Windows part of it went MIT about two years ago but the other two major parts have remained GPL'ed until very recently, and it looks like the minor ARM part of it is going to stay GPL'ed still for a while longer.
I'm also not sure yet exactly what BASIC flavor the new version is going to support, in part or in full. There are a few options still open, you know.