patch applied (packages/base): FIX #4336

[Simon Marlow]

Thu Oct 21 02:32:46 PDT 2010  Daniel Fischer <daniel.is.fischer at web.de>
  * FIX #4336
  Avoid superfluous gcd calculation in recip for Ratio a because numerator
  and denominator are known to be coprime.

    M ./GHC/Real.lhs -1 +4

View patch online:
http://darcs.haskell.org/cgi-bin/darcsweb.cgi?r=packages/base;a=darcs_commitdiff;h=20101021093246-a0d69-17d7daa716c4a1c29240b66c79001251937f3286.gz