6.13 Using SDL

The USE_SDL variable is used to autoconfigure the dependencies for ports which use an SDL based library like devel/sdl12 and x11-toolkits/sdl_gui.

The following SDL libraries are recognized at the moment:

• sdl: devel/sdl12

• gfx: graphics/sdl_gfx

• gui: x11-toolkits/sdl_gui

• image: graphics/sdl_image

• ldbad: devel/sdl_ldbad

• mixer: audio/sdl_mixer

• mm: devel/sdlmm

• net: net/sdl_net

• sound: audio/sdl_sound

• ttf: graphics/sdl_ttf

Therefore, if a port has a dependency on net/sdl_net and audio/sdl_mixer, the syntax will be:

USE_SDL=     net mixer

The dependency devel/sdl12, which is required by net/sdl_net and audio/sdl_mixer, is automatically added as well.

If you use USE_SDL, it will automatically:

• Add a dependency on sdl12-config to BUILD_DEPENDS

• Add the variable SDL_CONFIG to CONFIGURE_ENV

• Add the dependencies of the selected libraries to the LIB_DEPENDS

To check whether an SDL library is available, you can do it with the WANT_SDL variable:

WANT_SDL=yes

.include <bsd.port.pre.mk>

.if ${HAVE_SDL:Mmixer}!=""
USE_SDL+=   mixer
.endif

.include <bsd.port.post.mk>