package/rsync: add zstd support

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

package/rsync/rsync.mk

@@ -19,7 +19,6 @@ RSYNC_CONF_OPTS = \
 	--with-included-popt=no \
 	--disable-roll-simd \
 	--disable-openssl \
-	--disable-zstd \
 	--disable-lz4 \
 	--disable-md5-asm
 
@@ -36,4 +35,11 @@ else
 RSYNC_CONF_OPTS += --disable-xxhash
 endif
 
+ifeq ($(BR2_PACKAGE_ZSTD),y)
+RSYNC_DEPENDENCIES += zstd
+RSYNC_CONF_OPTS += --enable-zstd
+else
+RSYNC_CONF_OPTS += --disable-zstd
+endif
+
 $(eval $(autotools-package))