/sbin/ldconfig -v | grep -i sdlYou can get all these in source form from the SDL webpage: http://www.libsdl.org/ (click "Libraries" for the add-on libraries).
./configure make make installNote that SDL_ttf further relies on libfreetype; however most Linux distributions already come with this.
Some Linux distributions come with SDL, SDL_image and SDL_ttf preinstalled but not SDL_gfx, in which case you can install just the latter library yourself.
If you do not have root access, replace the first step with
./configure --prefix=$HOMEThis will install the libraries you need in $HOME/lib and the include files in $HOME/include. Multitalk's build process will find them in these directories. If you install into your home directory in this way you will also need to set your loadable library environment variable before running the program:
export LD_LIBRARY_CONFIG=$HOME/lib:$LD_LIBRARY_CONFIG
Note: the installation target (make install) requires GNU options to the cp command which are not available - you are advised to copy the built files to a suitable location by hand after running "make". Look at the Makefile to see what needs to be copied.