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Common Lisp SDL2 tutorials

Adapted from http://lazyfoo.net/tutorials/SDL/

Installing the SDL2 Libraries

The tutorial requires that SDL2, SDL2 Image, and SDL2 TTF are installed before running the examples.

Mac OS X

Mac OS X requires each library to be downloaded and copied to $HOME/Library/Frameworks or /Library/Frameworks.

Library Name Download Link
SDL2 https://www.libsdl.org/download-2.0.php
SDL2 Image https://www.libsdl.org/projects/SDL_image
SDL2 TTF https://www.libsdl.org/projects/SDL_ttf

Running the tutorials will cause Catalina to report that the framework cannot be opened because the developer cannot be verified. The workaround for this problem is the following:

  1. Navigate to System Preferences -> Security & Privacy -> General on the Mac

  2. Run repl.sh

  3. When the dialog appears about the developer not being verified, click the "Cancel" button.

  4. Examine the Security & Privacy screen for a button called "Allow Anyway" for the framework. Click the "Allow Anyway" button with the identified framework.

  5. The verification dialog will now appear a second time, but there will be an option to "Open" the framework. Click "Open".

  6. Repeat steps 3 through 5 for the different frameworks.

Linux

The SDL2 libraries can be installed on a Debian based system with the command below.

apt install libsdl2-2.0 libsdl2-image-2.0 libsdl2-ttf-2.0

Running the Examples

A repl.sh script is provided that loads SDL2-TUTORIAL with quicklisp and then starts up a swank thread on port 4005 for repl connections.

1. ./repl.sh
2. (sdl2-tutorial:main #'sdl2-tutorial-1:main)