Install libsdl-mixer-gst by entering the following commands in the terminal:
sudo apt update sudo apt install libsdl-mixer-gst
Description:
SDL_mixer bindings for GNU Smalltalk
This package contains the SDL_mixer bindings for GNU Smalltalk. . For more information on GNU Smalltalk see the gnu-smalltalk package.
Homepage: http://smalltalk.gnu.org
Version: 3.2.5-1.1
Section: universe/interpreters