RE: bug

> > it only happens when i try to compile with profiling enabled.
> 
> Profiling (-prof) is incompatible with the native code generator 
> (-fasm). Leave out -fasm if you want profiling. (Compiling will be 
> slower without -fasm)
> 
> It is only a tiny bug: GHC should complain about incompatible options 
> instead of panicking.

Fixed: GHC will now switch to -fvia-C mode for profiling and other
non-vanilla ways.

Cheers,
        Simon