xbmc: Add alsa support

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

package/xbmc/xbmc.mk

@@ -39,7 +39,6 @@ XBMC_CONF_ENV = \
 
 XBMC_CONF_OPT +=  \
 	--with-arch=$(BR2_ARCH) \
-	--disable-alsa \
 	--disable-crystalhd \
 	--disable-debug \
 	--disable-dvdcss \
@@ -73,6 +72,13 @@ ifeq ($(BR2_PACKAGE_DBUS),y)
 XBMC_DEPENDENCIES += dbus
 endif
 
+ifeq ($(BR2_PACKAGE_ALSA_LIB),y)
+XBMC_DEPENDENCIES += alsa-lib
+XBMC_CONF_OPT += --enable-alsa
+else
+XBMC_CONF_OPT += --disable-alsa
+endif
+
 ifeq ($(BR2_PACKAGE_XBMC_LIBUSB),y)
 XBMC_DEPENDENCIES += libusb-compat
 XBMC_CONF_OPT += --enable-libusb