Unload a binary PCK file so that it will no longer be searched by
   the readers.

   PCK

   Variable  I/O  Description
   --------  ---  --------------------------------------------------
   handle     I   Handle of PCK file to be unloaded

   handle     Integer handle assigned to the PCK file when it was
              loaded.

   None.

   None.

   A PCK file is removed from consideration by the readers during a
   search by a call to pckuof_c.

   The file table entry corresponding to the file referenced by
   handle, is removed and the file is closed.  Any segment table
   entry which came from the specified file is also deleted.

   If the file specified by handle does not appear in the file table,
   nothing happens.

   Unload a binary PCK kernel specified by an integer handle, making
   room to load another PCK.

      pck      = "/kernels/gen/pck/earth6.bpc";
      pcklof_c ( pck, &handle );
         .
         .
         .
      pckuof_c ( handle );


   Also see the Example in pckbsr.c or pckbsr.for.

   None.

   None.

   The file referred to by handle is unloaded.

   N.J. Bachman    (JPL)
   J.M. Lynch      (JPL)
   R.E. Thurman    (JPL)
   K.S. Zukor      (JPL)

   None.

   -CSPICE Version 1.0.0, 08-FEB-1998 (NJB)

      Based on SPICELIB Version 1.0.0, 16-MAR-1994 (KSZ)

   unload PCK orientation file