Install libgegl-dev by entering the following commands in the terminal:
sudo apt update sudo apt install libgegl-dev
Description:
Generic Graphics Library (development files)
GEGL (Generic Graphics Library) is a graph based image processing framework. . GEGL's original design was made to scratch GIMP's itches for a new compositing and processing core. This core is being designed to have minimal dependencies and a simple well defined API. . This package contains the development files.
Homepage: http://gegl.org/
Version: 0.3.30-1ubuntu1
Section: universe/libdevel