Install xaw3dg-dev by entering the following commands in the terminal:
sudo apt update sudo apt install xaw3dg-dev
Description:
Xaw3d widget set development package
Xaw3d is a set of 3-D widgets based on the R6.1 Athena Widget set, which adds a three dimensional appearance on some of the widgets of X11 applications linked with this library. . This is the development package (i.e. include files and static library) of the xaw3dg library.
Version: 1.5+E-18.3
Section: universe/devel