6.18 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:

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:

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


.include <bsd.port.pre.mk>

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

.include <bsd.port.post.mk>
For questions about the FreeBSD ports system, e-mail <ports@FreeBSD.org>.
For questions about this documentation, e-mail <doc@FreeBSD.org>.