desperately seeking RULES help

[Roman Leshchinskiy]

Simon Peyton-Jones wrote:
> The -fno-method-sharing flag was supposed to be a bit experimental, 
> which is why it takes the cheap-and-cheerful route of being a static 
> flag.  (Only dynamic flags can go in OPTIONS_GHC.)

It's dynamic in the HEAD, see

Mon May 19 19:59:56 PDT 2008  Roman Leshchinskiy <rl at cse.unsw.edu.au>
   * Make -f[no-]method-sharing a dynamic flag

Roman