keep the content of this S/R even when NONLIN_FRSURF is #undef  (needed for ALLOW_DEPTH_CONTROL case)
keep the content of this S/R even when NONLIN_FRSURF is #undef
 (needed for ALLOW_DEPTH_CONTROL case)

altMITgcm/MITgcm66h,altMITgcm/MITgcm66h,altMITgcm/MITgcm66h,altMITgcm/MITgcm66h,altMITgcm/MITgcm66h,altMITgcm/MITgcm66h,altMITgcm/MITgcm66h,altMITgcm/MITgcm66h