bld::tool::fppkeys key_dynspg_ts key_ldfslp \
                    key_NNA_r12=75 \
                    key_zdfgls \
                    key_mpp_mpi key_netcdf4 \
#                   key_nosignedzero key_iomput \
                    key_nosignedzero  \
                    key_traldf_c2d key_dynldf_c2d \
#                   key_traldf_c3d key_dynldf_c3d \
                    key_lim2 \
                    key_lim2_initcd_alt1 key_lim2_iceconc \
                    key_vvl key_jth_fix key_bdy \
#                   key_umax \
                    key_jdha_init \
#                   key_jdha_ssh_init \
#                   key_istate_fixed \
                    key_limit_bfr \
#                   key_fudge \                                    # lowers the envelope bathymetry to 20m            
#                   key_diaharm \
#                   key_diaar5 \
#                   key_iom_double \
#                   key_smsh \
#                   key_melange \
                    key_tide