Now when json-schema-validator is installed CMake config files are installed in the lib/cmake/json-schema-validator directory.
The install json-schema-validatorTargets.cmake file properly imports the json-hpp and json-schema-validator libraries.
The install json-schema-validatorConfig.cmake file is used by CMake find_package function to include the json-schema-validatorTargets.cmake file and to set the variable JSON_SCHEMA_VALIDATOR_INCLUDE_DIRS to the install include directory.
To use find_package to find the json-schema-validator simply include.
A new test (test_cmake_install) has been added.
