Prerequisites:
CMake version 3.20.2 or newer.
YAJL 2.0.1 or newer. You need both the library and the header files. This is a standard binary package in most any Linux distribution. Note that the header files are often in a separate “devel” package. The source can be downloaded from https://github.com/lloyd/yajl/releases if you must build the library yourself.
A Fortran compiler that supports the 2018 features used by YAJL-Fort, and its companion (or a compatible) C compiler.
Clone the YAJL-Fort source repository with SSH:
git clone git@github.com:nncarlson/yajl-fort.git
or with HTTPS:
git clone https://github.com/nncarlson/yajl-fort.git
Set your FC and CC environment variables to your Fortran and C
compilers. If YAJL is not in a standard location you will also need to
set your YAJL_ROOT environment variable to the root directory of the
YAJL installation. Then create a build directory and run cmake from
the directory:
cd yajl-fort
mkdir build
cd build
cmake ..
CMake should find your compilers with the help of the FC and CC
variables. The default is to configure a Release build. Some CMake
variables you might want to set on the cmake command line:
CMAKE_BUILD_TYPE: to specify a Debug build type, for example
CMAKE_Fortran_FLAGS: additional Fortran compiler flags
CMAKE_INSTALL_PREFIX: where to install the library and module files
Then compile the library and tests, and run the tests (all should pass):
make
ctest
Then see the documentation for the yajl_fort and json modules and the examples therein.