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ECCODES_GRIBEX_MODE_ON: When set to 1 it will enable the GRIBEX compatibility mode and ecCodes will produce GRIB messages readable by GRIBEX.
ECCODES_GRIB_IEEE_PACKING: Accepted values 32 or 64 for 32 or 64 bits IEEE floating point respectively. The GRIB message produced will contain data written in IEEE floating point without packing.ECCODES_LOG_STREAM: This controls the output stream for warning/error messages. Accepted values are "stdout" or "stderr" (default is stderr)
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