text: C CPP flags controlling which code is included in the files that
  C will be compiled.
  C
  C ********************************************************************
  C ***                         ECCO Package                         ***
  C ********************************************************************
  C
  #undef  ALLOW_ECCO_FORWARD_RUN
  #undef  ALLOW_ECCO_DIAGNOSTICS_RUN
  #define  ALLOW_ECCO_OPTIMIZATION
   
  C ********************************************************************
  C ***                  Adjoint Support Package                     ***
  C ********************************************************************
                                                                                                                          
  C o Include/exclude code in order to be able to automatically
  C   differentiate the MITgcmUV by using the Tangent Linear and
  C   Adjoint Model Compiler (TAMC).
  #define INCLUDE_AUTODIFF_PACKAGE
  C
  #define ALLOW_AUTODIFF_TAMC
  C
  C       >>> Checkpointing as handled by TAMC
  #define ALLOW_TAMC_CHECKPOINTING
  c
  c       >>> Reduce to 2-level checkpointing
  #define AUTODIFF_2_LEVEL_CHECKPOINT
  C
  C       >>> Extract adjoint state
  #define ALLOW_AUTODIFF_MONITOR
  C
  C o use divided adjoint to split adjoint computations
  #undef ALLOW_DIVIDED_ADJOINT
  
  C ********************************************************************
  C ***                Cost function Package                         ***
  C ********************************************************************
  C
  #define ALLOW_COST
  #ifdef ALLOW_COST
  C       >>> Use the EGM-96 geoid error covariance.
  # undef  ALLOW_EGM96_ERROR_COV
  # undef  ALLOW_READ_EGM_DATA
  C       >>> Use NSCAT data.
  # undef  ALLOW_NSCAT_DATA
  C       >>> Cost function contributions
  
  # undef ALLOW_HFLUX_COST_CONTRIBUTION
  # undef ALLOW_SFLUX_COST_CONTRIBUTION
  # undef ALLOW_USTRESS_COST_CONTRIBUTION
  # undef ALLOW_VSTRESS_COST_CONTRIBUTION
  
  # define ALLOW_ATEMP_COST_CONTRIBUTION
  # define ALLOW_AQH_COST_CONTRIBUTION
  # define ALLOW_UWIND_COST_CONTRIBUTION
  # define ALLOW_VWIND_COST_CONTRIBUTION
  # define ALLOW_PRECIP_COST_CONTRIBUTION
  # define ALLOW_SWDOWN_COST_CONTRIBUTION
  
  cph-test # define ALLOW_SST_COST_CONTRIBUTION
  
  c       >>> Sea-ice volume
  # define ALLOW_COST_ICE
  
  c       >>> Sea-ice fractional coverage misfit to SMR obs
  # define ALLOW_SEAICE_COST_SMR_AREA
  
  #endif /* ALLOW_COST */
  
  C ********************************************************************
  C ***               Control vector Package                         ***
  C ********************************************************************
  C
  #undef  EXCLUDE_CTRL_PACK
  #define  ALLOW_NONDIMENSIONAL_CONTROL_IO
  
  C       >>> Initial values.
  #undef ALLOW_THETA0_CONTROL
  #undef ALLOW_SALT0_CONTROL
  
  C       >>> Surface fluxes.
  #undef  ALLOW_HFLUX_CONTROL
  #undef  ALLOW_SFLUX_CONTROL
  #undef  ALLOW_USTRESS_CONTROL
  #undef  ALLOW_VSTRESS_CONTROL
  
  C       >>> Atmospheric state.
  #define  ALLOW_ATEMP_CONTROL
  #define  ALLOW_AQH_CONTROL
  #define  ALLOW_UWIND_CONTROL
  #define  ALLOW_VWIND_CONTROL
  #define  ALLOW_PRECIP_CONTROL
  #define  ALLOW_SWDOWN_CONTROL
  
  cph-test #define  ALLOW_SST_CONTROL
  #undef  ALLOW_SSS_CONTROL
  
  C ********************************************************************
  C ***             External forcing Package                         ***
  C ********************************************************************
  C 
  
  C   Do more printout for the protocol file than usual.
  #undef EXF_VERBOSE
  
  C   Options that are required to use pkg/exf with pkg/seaice.
  #define  ALLOW_ATM_TEMP
  #define  ALLOW_ATM_WIND
  #define  ALLOW_DOWNWARD_RADIATION
  #define  ALLOW_BULKFORMULAE
  #define  ALLOW_RUNOFF
  #undef  USE_EXF_INTERPOLATION
  
  C   Options that control relaxation terms.
  #undef   ALLOW_CLIMTEMP_RELAXATION
  #undef   ALLOW_CLIMSALT_RELAXATION
  #define  ALLOW_CLIMSST_RELAXATION
  #define  ALLOW_CLIMSSS_RELAXATION
  