C 
C This program is free software; you can redistribute it and/or
C modify it under the terms of the GNU General Public License
C as published by the Free Software Foundation; either version 2
C of the License, or (at your option) any later version.
C 

      subroutine fsub(arg,res)
      write(*,*) 'fsub called'
      call fsubf(arg,res)
      return
      end