As of the time of this article the only version available in the repository is 3.0 .
Synfig Studio is one of several software that was made with gtkmm
gtkmm-4.0 has several new improvements and features.
In this article we will see how to compile on Ubuntu 22.04 .
Before following this tutorial, check if version 4 is already available in the repository, as some distros already have it. But anyway, it will serve as a learning experience or for new versions! 😃
Dependencies
Install build dependencies
By default, GNOME uses Meson, but in all packages there is an alternative to compile with GNU Autotools, in this case we will compile everything with Autotools:
It’s also good to have gtkmm-3.0 to solve other dependencies. In addition to Gtk4 .
Now let’s use the updated versions, without them you can’t continue, click on the links if there is already a newer version, download the latest one. It accepts these versions or higher.