Install libcext-dev by entering the following commands in the terminal:
sudo apt update sudo apt install libcext-dev
Description:
Commonly used utility functions for C programs (development files)
This is a C utility library, which is used to implement ESO's Common Pipeline Library (CPL). The library contains a basic collections framework (maps, linked lists, queues), memory management, strings, logging and others. . The package contains the static library and the C header files.
Homepage: https://www.eso.org/sci/software/cpl/
Version: 7.1-3
Section: universe/libdevel