Ubuntu 14.04 uses the GTK 3.10 release. Also, some required packages may be missing. You may need to install the first or all of these packages in Ubuntu before gotk3:

$ sudo apt install libgtk-3-dev libcairo2-dev libglib2.0-dev

$ sudo dnf install gtk3-devel cairo-devel glib-devel

$ sudo apk add gtk+3.0-dev cairo-dev glib-dev

There's already source codes in binary packages. So, by installing gtk3 you are also getting dev-part of it.

$ sudo eopkg it libgtk-3-devel

$ sudo swupd bundle-add devpkg-gtk3