Install libganv-dev by entering the following commands in the terminal:
sudo apt update sudo apt install libganv-dev
Description:
canvas widget for graph-based interfaces (development files)
Ganv is an interactive Gtk canvas widget for graph-based interfaces (patchers, modular synthesizers, finite state automata, interactive graphs, etc). . This package provides the development files for the Ganv library.
Homepage: http://drobilla.net/software/ganv
Version: 1.4.2~dfsg0-2
Section: universe/libdevel