Installing UDUNITS

Procedure

1. Download the installation package.

   cd /path/to
   wget https://artifacts.unidata.ucar.edu/repository/downloads-udunits/2.2.28/udunits-2.2.28.tar.gz
   tar xf udunits-2.2.28.tar.gz

2. Go to the source package directory and perform the installation.

   cd udunits-2.2.28
   CC=clang CXX=clang++ ./configure LDFLAGS="-L/path/to/libexpat/lib64" CPPFLAGS="-I/path/to/libexpat/include" --prefix=/path/to/udunits
   make -j 64
   make install

3. Set the environment variables.

   export PATH=/path/to/udunits/bin:$PATH
   export LD_LIBRARY_PATH=/path/to/udunits/lib:$LD_LIBRARY_PATH
   export INCLUDE=/path/to/udunits/include:$INCLUDE