[cvs-nhc98] patch applied (nhc98/src/libraries/base): Use hsc2hs to expand System.Posix.Types, rather than autoconf.

[Malcolm Wallace]

Thu Apr 12 12:31:09 PDT 2007  Malcolm.Wallace at cs.york.ac.uk
  * Use hsc2hs to expand System.Posix.Types, rather than autoconf.
  This enables it to build for nhc98.  Some consequent changes in CTypes.h
  were required, to use the newly standardised Unsafe.Coerce.

    R ./System/Posix/Types.hs
    A ./System/Posix/Types.hsc
    M ./include/CTypes.h -6 +11