rsync: add config option for zstd support

Signed-off-by: Ian Leonard <antonlacon@gmail.com>

net/rsync/Config.in

@@ -12,4 +12,9 @@ if PACKAGE_rsync
 		default y if USE_FS_ACL_ATTR
 		default n
 
+	config RSYNC_zstd
+		bool
+		prompt "Enable zstd stream compression"
+		default n
+
 endif

net/rsync/Makefile

@@ -9,7 +9,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=rsync
 PKG_VERSION:=3.2.3
-PKG_RELEASE:=1
+PKG_RELEASE:=2
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
 PKG_SOURCE_URL:=https://download.samba.org/pub/rsync/src
@@ -30,7 +30,7 @@ define Package/rsync
   CATEGORY:=Network
   SUBMENU:=File Transfer
   TITLE:=Fast remote file copy program (like rcp)
-  DEPENDS:=+libpopt +zlib +RSYNC_xattr:libattr +RSYNC_acl:libacl
+  DEPENDS:=+libpopt +zlib +RSYNC_xattr:libattr +RSYNC_acl:libacl +RSYNC_zstd:libzstd
   URL:=https://rsync.samba.org/
   MENU:=1
 endef
@@ -54,7 +54,7 @@ CONFIGURE_ARGS += \
 	--disable-openssl \
 	--disable-simd \
 	--disable-xxhash \
-	--disable-zstd \
+	--$(if $(CONFIG_RSYNC_zstd),en,dis)able-zstd \
 	--$(if $(CONFIG_RSYNC_xattr),en,dis)able-xattr-support \
 	--$(if $(CONFIG_RSYNC_acl),en,dis)able-acl-support \
 	$(if $(CONFIG_IPV6),,--disable-ipv6)