patch applied (ghc): Use a boot script instead of having autoreconf recurse

[Ian Lynagh]

Tue Apr 10 14:52:52 PDT 2007  Ian Lynagh <igloo at earth.li>
  * Use a boot script instead of having autoreconf recurse
  It used to be the case that
      autoreconf
  in the root would also autoreconf in any libraries that need it, and
      ./configure
  in the root would also configure all the libraries.
  
  However, cabal now configures the libraries, so they were getting
  configured twice.
  
  Thus now a small shellscript, boot, autoreconfs the root and all libraries
  that need it, and ./configure in the root doesn't configure the libraries.

    A ./boot
    M ./configure.ac -7
    R ./libraries/aclocal.m4
    R ./libraries/configure.ac