firewall: link iptables extensions dynamically

Use shared libipt{,4,6}ext.so libraries instead of statically linking
the userspace matches into the fw3 executable.

As a side effect the match initialization is extremely simplified
compared to the weak function pointer juggling performed before.

This also fixes the initialization of the multiport match.

Signed-off-by: Jo-Philipp Wich <jow@openwrt.org>

SVN-Revision: 45764

package/network/config/firewall/Makefile

@@ -8,13 +8,13 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=firewall
-PKG_VERSION:=2015-02-26
+PKG_VERSION:=2015-05-26
 PKG_RELEASE:=$(PKG_SOURCE_VERSION)
 
 PKG_SOURCE_PROTO:=git
 PKG_SOURCE_URL:=git://nbd.name/firewall3.git
 PKG_SOURCE_SUBDIR:=$(PKG_NAME)-$(PKG_VERSION)
-PKG_SOURCE_VERSION:=165029cb8c0f1545628f44143aec965e64cef021
+PKG_SOURCE_VERSION:=980b7859bbd1db1e5e46422fccccbce38f9809ab
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION)-$(PKG_SOURCE_VERSION).tar.gz
 PKG_MAINTAINER:=Jo-Philipp Wich <jow@openwrt.org>
 PKG_LICENSE:=ISC
@@ -39,11 +39,6 @@ define Package/firewall/conffiles
 /etc/firewall.user
 endef
 
-define Build/Configure
-	$(foreach file,$(wildcard $(STAGING_DIR)/usr/lib/iptables/libext*.a),$(CP) $(file) $(PKG_BUILD_DIR)/$(notdir $(file));)
-	$(call Build/Configure/Default)
-endef
-
 TARGET_CFLAGS += -ffunction-sections -fdata-sections
 TARGET_LDFLAGS += -Wl,--gc-sections
 CMAKE_OPTIONS += $(if $(CONFIG_IPV6),,-DDISABLE_IPV6=1)