I've actually been trying this for real. Right now, I'm at the 82-compiler mark, including the ~6 LLVM versions needed. For a sense of scale, the most recent co

I've actually been trying this for real. Right now, I'm at the 82-compiler mark, including the ~6 LLVM versions needed. For a sense of scale, the most recent compiler in this chain is the 2011-12-07 snapshot, which is still older than Rust 0.1 (2012-01-20). In most cases, additional compilers are needed only to resolve syntax errors, but there are occasional LLVM-related segfaults that create most of my headaches.