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>
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