No, there is and will be no port of LFS to Linux or Mac OS X. Doing this would take a huge effort and a long time and because our development team only consists of 3 people, we simply do not have the manpower to do just that. The time we would spend creating a port can be much better spent improving the sim itself.
However, it should be possible to run LFS using the Windows emulator Wine, though we do not provide support for any problems you might occur.
The community has provided how-to's for Linux and OS X and can be found at the LFS Manual :
LFS on Linux how-to
LFS on OS X how-to