libjsoncpp-dev binary package in Ubuntu Lunar riscv64

 This package provides all required developer resources like header-files
 and statically linked version of the library.
 .
 jsoncpp is an implementation of a JSON reader and writer in C++. JSON
 (JavaScript Object Notation) is a lightweight data-interchange format
 that it is easy to parse and readable for human. It is useful for
 building config files, network communications protocols, etc.
 .
 This library provides following features:
 .
  * High-level data structures for collecting data from JSON.
  * Easy-to-use reader and writer.

Source package