[package] get the enable/disable ipv6 configure option from the build system, do not override it locally

git-svn-id: svn://svn.openwrt.org/openwrt/packages@17009 3c298f89-4303-0410-b956-a3cf2f4a3e73

net/rsync/Makefile

@@ -1,5 +1,5 @@
 #
-# Copyright (C) 2007-2008 OpenWrt.org
+# Copyright (C) 2007-2009 OpenWrt.org
 #
 # This is free software, licensed under the GNU General Public License v2.
 # See /LICENSE for more information.
@@ -10,7 +10,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=rsync
 PKG_VERSION:=3.0.3
-PKG_RELEASE:=1
+PKG_RELEASE:=2
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
 PKG_SOURCE_URL:=http://rsync.samba.org/ftp/rsync
@@ -41,7 +41,6 @@ endef
 CONFIGURE_ARGS += \
 	--with-included-popt=no \
 	--disable-debug \
-	--disable-ipv6 \
 	--disable-locale \
 	--disable-xattr-support \
 	--disable-acl-support \