package/sdl_sound: add --enable/disable-speex

Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/sdl_sound/sdl_sound.mk

@@ -39,7 +39,10 @@ SDL_SOUND_CONF_OPTS += --disable-ogg
 endif
 
 ifeq ($(BR2_PACKAGE_SPEEX),y)
+SDL_SOUND_CONF_OPTS += --enable-speex
 SDL_SOUND_DEPENDENCIES += speex
+else
+SDL_SOUND_CONF_OPTS += --disable-speex
 endif
 
 SDL_SOUND_CONF_OPTS = \