patch applied (ghc-6.8/ghc): FIX #1977: Check to see if $(bindir) is in the path

[Ian Lynagh]

Sun Feb 24 05:43:34 PST 2008  Ian Lynagh <igloo at earth.li>
  * FIX #1977: Check to see if $(bindir) is in the path
  Before telling the user to add it, when installing a bindist, check to
  see if $(bindir) is already in the path.

    M ./distrib/Makefile +6