1. If the utility is not built, one can go to this directory.
   make
   You should see the h4tonccf utility built. This may be the utility to convert to netCDF-3.
   For netCDF-4 generation, add the following line to the main_ncconverter.cpp file
   #define NC4 1

   after the line
   #include "h4cf.h"

   re-run 
   make
   
   You should see have the h4tonccf utility to generate a netCDF4/HDF5 file.

2. How to build the static utility
   For the 1.4 release, we cannot use the netCDF4.9.2 to build the utility because
   the static netCDF-4 library dynamicially links with extra libraries such as
   libcurl or libxml2. So we have to use netCDF4.7.3 and we verify the static utility 
   can be run on another machine.
   on CentOS 7, the compiler we are using is gcc 8.3.1. When generating the static utility,
   we have to specify the --static-libstdc++ flag, otherwise, the utility won't run on
   another machine. Something like: export CXX="???/g++ --static-libstdc++"  needs to be
   specified.
3. For the advanced users or developers, Makefile.template and build_static.sh may also
   be useful to build the static utility by yourselves.
