deal.ii: sundials2 not found during configure; needs sundials instead?

[mascguy (Christopher Nielsen)]

This port currently declares a dependency on sundials2, but it appears that it requires a newer version - suggesting that sundials (which is v5.8.x) is necessary instead:

:info:configure -- Include /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarba
lls_ports_math_deal.ii/deal.ii/work/dealii-9.3.1/cmake/configure/configure_sundials.cmake
:info:configure -- Found SUNDIALS_LIB_IDAS
:info:configure -- Found SUNDIALS_LIB_IDA
:info:configure -- Found SUNDIALS_LIB_ARKODE
:info:configure -- Found SUNDIALS_LIB_KINSOL
:info:configure -- Found SUNDIALS_LIB_SER
:info:configure -- SUNDIALS_INCLUDE_DIR not found! The call was:
:info:configure --     FIND_PATH(SUNDIALS_INCLUDE_DIR sundials/sundials_version.h HINTS PATH_SUFFIXES include)
:info:configure -- SUNDIALS_CONFIG_H not found! The call was:
:info:configure --     FIND_FILE(SUNDIALS_CONFIG_H NAMES sundials_config.h HINTS SUNDIALS_INCLUDE_DIR-NOTFOUND/sundials)
:info:configure --   SUNDIALS_VERSION: 0.0.0
:info:configure --   SUNDIALS_LIBRARIES: /opt/local/lib/libsundials_idas.dylib;/opt/local/lib/libsundials_arkode.dylib;/opt/local/lib/libsundials_kinsol.dylib;/opt/local/lib/libsundials_nvecserial.dylib
:info:configure --   SUNDIALS_INCLUDE_DIRS: *** Required variable "SUNDIALS_INCLUDE_DIR" set to NOTFOUND ***
:info:configure --   SUNDIALS_USER_INCLUDE_DIRS: *** Required variable "SUNDIALS_INCLUDE_DIR" set to NOTFOUND ***
:info:configure -- Could NOT find SUNDIALS
:info:configure -- Could not find a sufficient Sundials installation: deal.II requires at least version 3.0.0, but version 0.0.0 was found.
:info:configure -- DEAL_II_WITH_SUNDIALS has unmet external dependencies.