I’m getting this on Linux (Ubuntu).  How do I get a newer version of llvm? 

Simon

<no location info>:

    You are using an old version of LLVM that isn't supported anymore!

    We will try though...

/usr/bin/opt: /tmp/ghc451_0/ghc451_1.ll:7:6: error: expected type

!0 = !{!"top", i8* null}

     ^