Install libpqxx-dev by entering the following commands in the terminal:
sudo apt update sudo apt install libpqxx-dev
Description:
C++ library to connect to PostgreSQL (development files)
C++ library to enable user programs to communicate with the PostgreSQL database back-end. . This package contains header files for linking against libpqxx. Obsoletes the libpqpp-dev package.
Homepage: http://pqxx.org
Version: 4.0.1+dfsg3-8
Section: universe/libdevel