anchor.diff:  										! 9  = stop on serious warnings 
   										! 10 = stop on all warnings
   	end type options_type
  -end module data_structures	+end module data_structures	
  
positive.code: 		integer::convection
  		integer::windtype
  	end type physics_type
  	
  	!------------------------------------------------
  	! store all model options
  	!------------------------------------------------
  	type options_type
  		character (len=MAXVARLENGTH) :: version,comment
  
  		! file names
  		character (len=MAXFILELENGTH) :: init_conditions_file
  
negative.code: 		
  		! defines which physics package to be used. 
  		type(physics_type)::physics
  !! ++ trude
  		! parameterization options
                  type(mp_options_type)::mp_options
  !! -- trude
  		integer :: warning_level        ! level of warnings to issue when checking options settings 0-10.  
  										! 0  = Don't print anything
  										! 1  = print serious warnings
  