Using the Simple DirectMedia Layer with Mac OS X
These instructions are for people using Apple's Mac OS X (pronounced
From the developer's point of view, OS X is a sort of hybrid Mac and
Unix system, and you have the option of using either traditional
command line tools or Apple's IDE ProjectBuilder (PB).
To build using the command line, use the standard configure and make
(You may need to create the subdirs of /usr/local manually.)
To use the library once it's built, you essential have two possibilities:
use the traditional autoconf/automake/make method, or use Apple's Project Builder.
Using the Simple DirectMedia Layer with a traditional Makefile
An existing autoconf/automake build system for your SDL app has good chances
to work almost unchanged on OS X. However, to produce a "real" MacOS X binary
that you can distribute to users, you need to put the generated binary into a
so called "bundle", which basically is a fancy folder with a name like
To get this build automatically, add something like the following rule to
bundle_contents = APP_NAME.app/Contents
mkdir -p $(bundle_contents)/MacOS
mkdir -p $(bundle_contents)/Resources
echo "APPL????" > $(bundle_contents)/PkgInfo
$(INSTALL_PROGRAM) $< $(bundle_contents)/MacOS/
You should replace EXE_NAME with the name of the executable. APP_NAME is what
will be visible to the user in the Finder. Usually it will be the same
as EXE_NAME but capitalized. E.g. if EXE_NAME is "testgame" then APP_NAME
usually is "TestGame". You might also want to use @PACKAGE@ to use the package
name as specified in your configure.in file.
If your project builds more than one application, you will have to do a bit
more. For each of your target applications, you need a seperate rule.
If you want the created bundles to be installed, you may want to add this
rule to your Makefile.am:
rm -rf $(DESTDIR)$(prefix)/Applications/APP_NAME.app
mkdir -p $(DESTDIR)$(prefix)/Applications/
cp -r $< /$(DESTDIR)$(prefix)Applications/
This rule takes the Bundle created by the rule from step 3 and installs them
Again, if you want to install multiple applications, you will have to augment
the make rule accordingly.
Using the Simple DirectMedia Layer with Project Builder
These instructions are for using Apple's Project Builder IDE to build SDL
- First steps
The first thing to do is to unpack the PBProjects.tar.gz archive in the
top level SDL directory (where the PBProjects.tar.gz archive resides).
Because Stuffit Expander will unpack the archive into a subdirectory,
you should unpack the archive manually from the command line:
tar zxf PBProjects.tar.gz
This will create a new folder called PBProjects, which you can browse
normally from the Finder.
- Building the Framework
The SDL Library is packaged as a framework bundle, an organized
relocatable folder heirarchy of executible code, interface headers,
and additional resources. For practical purposes, you can think of a
framework as a more user and system-friendly shared library, whose library
file behaves more or less like a standard UNIX shared library.
To build the framework, simply open the framework project and build it.
By default, the framework bundle "SDL.framework" is installed in
~/Library/Frameworks. Therefore, the testers and project stationary expect
it to be located there. However, it will function the same in any of the
- Build Options
There are two "Build Styles" (See the "Targets" tab) for SDL.
"Deployment" should be used if you aren't tweaking the SDL library.
"Development" should be used to debug SDL apps or the library itself.
- Building the Testers
Open the SDLTest project and build away!
- Using the Project Stationary
Copy the stationary to the indicated folders to access it from
the "New Project" and "Add target" menus. What could be easier?
- Setting up a new project by hand
Some of you won't want to use the Stationary so I'll give some tips:
* Create a new "Cocoa Application"
* Add src/main/macosx/SDLMain.m , .h and .nib to your project
* Remove "main.c" from your project
* Remove "MainMenu.nib" from your project
* Add "$(HOME)/Library/Frameworks/SDL.framework/Headers" to include path
* Add "$(HOME)/Library/Frameworks" to the frameworks search path
* Add "-framework SDL -framework Foundation -framework AppKit" to "OTHER_LDFLAGS"
* Set the "Main Nib File" under "Application Settings" to "SDLMain.nib"
* Add your files
* Clean and build
- Building from command line
Use pbxbuild in the same directory as your .pbproj file
- Running your app
You can send command line args to your app by either invoking it from
the command line (in *.app/Contents/MacOS) or by entering them in the
"Executibles" panel of the target settings.
- Implementation Notes
Some things that may be of interest about how it all works...
* Working directory
As defined in the SDL_main.m file, the working directory of your SDL app
is by default set to its parent. You may wish to change this to better
suit your needs.
* You have a Cocoa App!
Your SDL app is essentially a Cocoa application. When your app
starts up and the libraries finish loading, a Cocoa procedure is called,
which sets up the working directory and calls your main() method.
You are free to modify your Cocoa app with generally no consequence
to SDL. You cannot, however, easily change the SDL window itself.
Functionality may be added in the future to help this.
Known bugs are listed in the file "BUGS"