These libraries are required in order for Odamex to compile correctly. Note that you must get both the runtime libraries and development libraries.
A special note if you are running Linux: Before downloading the libraries below, check to see if these librares are included with your distribution or avalable to download through an automated package management system, such as apt or yum. If such packages are avalable, setting up your build environment will be substantially easier.
SDL
Latest version is 1.2.11
SDL_mixer
Latest version is 1.2.7