package/mpd: add zziplib optional dependency

zziplib is an optional dependency since version 0.15.0 and
https://github.com/MusicPlayerDaemon/MPD/commit/e216e01ab3db0d9bea179b043276401d38bfd957

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/mpd/Config.in

@@ -34,6 +34,12 @@ config BR2_PACKAGE_MPD_SQLITE
 	  Enable sqlite database support.
 	  If you don't use sqlite it will use an ASCII database.
 
+config BR2_PACKAGE_MPD_ZZIP
+	bool "zzip"
+	select BR2_PACKAGE_ZZIPLIB
+	help
+	  Enable ZIP archive support.
+
 comment "Commercial services"
 
 config BR2_PACKAGE_MPD_QOBUZ

package/mpd/mpd.mk

@@ -317,6 +317,13 @@ else
 MPD_CONF_OPTS += -Dwavpack=disabled
 endif
 
+ifeq ($(BR2_PACKAGE_MPD_ZZIP),y)
+MPD_DEPENDENCIES += zziplib
+MPD_CONF_OPTS += -Dzzip=enabled
+else
+MPD_CONF_OPTS += -Dzzip=disabled
+endif
+
 define MPD_INSTALL_EXTRA_FILES
 	$(INSTALL) -m 0644 -D package/mpd/mpd.conf $(TARGET_DIR)/etc/mpd.conf
 endef