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Update to work with NetCDF-4.5.1 or later #238

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Update to work with NetCDF-4.5.1 or later #238

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52 changes: 31 additions & 21 deletions tribits/common_tpls/find_modules/FindNetCDF.cmake
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Original file line number Diff line number Diff line change
Expand Up @@ -165,33 +165,18 @@ else(NetCDF_LIBRARIES AND NetCDF_INCLUDE_DIRS)

# Large dimension and parallel check here
if ( NetCDF_INCLUDE_DIR )

set(netcdf_h "${NetCDF_INCLUDE_DIR}/netcdf.h" )
message(STATUS "NetCDF include file ${netcdf_h} will be searched for define values")

file(STRINGS "${netcdf_h}" netcdf_max_dims_string REGEX "^#define NC_MAX_DIMS")
string(REGEX REPLACE "[^0-9]" "" netcdf_max_dims "${netcdf_max_dims_string}")

file(STRINGS "${netcdf_h}" netcdf_max_vars_string REGEX "^#define NC_MAX_VARS")
string(REGEX REPLACE "[^0-9]" "" netcdf_max_vars "${netcdf_max_vars_string}")

if (
( (netcdf_max_dims EQUAL 65536) OR (netcdf_max_dims GREATER 65536) ) AND
( (netcdf_max_vars EQUAL 524288) OR (netcdf_max_vars GREATER 524288) )
)
set(NetCDF_LARGE_DIMS TRUE)
else()
message(WARNING "WARNING: The NetCDF found in ${NetCDF_ROOT} does not have the correct NC_MAX_DIMS and NC_MAX_VARS. "
"It may not be compatible with Exodus. See NetCDF-Mapping.md for details\n" )
set(NetCDF_LARGE_DIMS FALSE)
endif()

set(NetCDF_PARALLEL False)
find_path(meta_path
NAMES "netcdf_meta.h"
HINTS ${NetCDF_INCLUDE_DIR}
NO_DEFAULT_PATH)

set(NetCDF_PARALLEL False)
if(meta_path)
# Search meta for NetCDF Version...
file(STRINGS "${meta_path}/netcdf_meta.h" netcdf_ver_string REGEX "NC_VERSION ")
string(REGEX REPLACE "[^0-9\.]" "" netcdf_version "${netcdf_ver_string}")

# Search meta for NC_HAS_PARALLEL setting...
file(STRINGS "${meta_path}/netcdf_meta.h" netcdf_par_string REGEX "NC_HAS_PARALLEL")
string(REGEX REPLACE "[^0-9]" "" netcdf_par_val "${netcdf_par_string}")
Expand All @@ -202,6 +187,30 @@ else(NetCDF_LIBRARIES AND NetCDF_INCLUDE_DIRS)
endif()
endif()

if (netcdf_version VERSION_GREATER 4.5.0)
set(NetCDF_LARGE_DIMS True)
else()
set(netcdf_h "${NetCDF_INCLUDE_DIR}/netcdf.h" )
message(STATUS "NetCDF include file ${netcdf_h} will be searched for define values")

file(STRINGS "${netcdf_h}" netcdf_max_dims_string REGEX "^#define NC_MAX_DIMS")
string(REGEX REPLACE "[^0-9]" "" netcdf_max_dims "${netcdf_max_dims_string}")

file(STRINGS "${netcdf_h}" netcdf_max_vars_string REGEX "^#define NC_MAX_VARS")
string(REGEX REPLACE "[^0-9]" "" netcdf_max_vars "${netcdf_max_vars_string}")

if (
( (netcdf_max_dims EQUAL 65536) OR (netcdf_max_dims GREATER 65536) ) AND
( (netcdf_max_vars EQUAL 524288) OR (netcdf_max_vars GREATER 524288) )
)
set(NetCDF_LARGE_DIMS True)
else()
message(WARNING "WARNING: The NetCDF found in ${NetCDF_ROOT} does not have the correct NC_MAX_DIMS and NC_MAX_VARS. "
"It may not be compatible with Exodus. See NetCDF-Mapping.md for details\n" )
set(NetCDF_LARGE_DIMS False)
endif()
endif()

endif()

# Search for libraries
Expand Down Expand Up @@ -447,6 +456,7 @@ if ( NOT NetCDF_FIND_QUIETLY )
message(STATUS "\tNetCDF_NEEDS_HDF5 = ${NetCDF_NEEDS_HDF5}")
message(STATUS "\tNetCDF_NEEDS_PNetCDF = ${NetCDF_NEEDS_PNetCDF}")
message(STATUS "\tNetCDF_PARALLEL = ${NetCDF_PARALLEL}")
message(STATUS "\tNetCDF_LARGE_DIMS = ${NetCDF_LARGE_DIMS}")
message(STATUS "\tNetCDF_INCLUDE_DIRS = ${NetCDF_INCLUDE_DIRS}")
message(STATUS "\tNetCDF_LIBRARIES = ${NetCDF_LIBRARIES}")
message(STATUS "\tNetCDF_BINARIES = ${NETCDF_TOOLS_FOUND}")
Expand Down