arptables: bump to 2015-05-20

This fixes building with musl and drops the dependency on the OpenWrt
kernel-header patches:

  270-uapi-kernel.h-glibc-specific-inclusion-of-sysinfo.h.patch
  271-uapi-libc-compat.h-do-not-rely-on-__GLIBC__.patch
  272-uapi-if_ether.h-prevent-redefinition-of-struct-ethhd.patch

Use the new upstream location at netfilter.org and use a define instead
of a patch to "optimize".

See also: https://git.netfilter.org/arptables/log/

Signed-off-by: Ralph Sennhauser <ralph.sennhauser@gmail.com>
[Jo-Philipp Wich: add mirror SHA256 sum]
Signed-off-by: Jo-Philipp Wich <jo@mein.io>

package/network/utils/arptables/Makefile

@@ -1,4 +1,4 @@
-# Copyright (C) 2006-2010 OpenWrt.org
+# Copyright (C) 2006-2016 OpenWrt.org
 #
 # This is free software, licensed under the GNU General Public License v2.
 # See /LICENSE for more information.
@@ -7,15 +7,17 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=arptables
-PKG_VERSION:=0.0.4
+PKG_VERSION:=2015-05-20
 PKG_RELEASE:=1
+PKG_MIRROR_MD5SUM:=736c2a88f99936811d80dd75d3016c3829ebb9dac8b28ced020a0bee149c2a31
 
-PKG_SOURCE:=$(PKG_NAME)-v$(PKG_VERSION).tar.gz
-PKG_SOURCE_URL:=@SF/ebtables
-PKG_MD5SUM:=c2e99c3aa9d78c9dfa30710ca3168182
-PKG_LICENSE:=GPL-2.0
+PKG_SOURCE_URL:=git://git.netfilter.org/arptables
+PKG_SOURCE_PROTO:=git
+PKG_SOURCE_SUBDIR:=$(PKG_NAME)-$(PKG_VERSION)
+PKG_SOURCE_VERSION:=f4ab8f63f11a72f14687a6646d04ae1bae3fa45f
+PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION)-$(PKG_SOURCE_VERSION).tar.xz
 
-PKG_BUILD_DIR:=$(BUILD_DIR)/$(PKG_NAME)-v$(PKG_VERSION)
+PKG_LICENSE:=GPL-2.0
 
 include $(INCLUDE_DIR)/package.mk
 
@@ -25,15 +27,12 @@ define Package/arptables
   SUBMENU:=Firewall
   TITLE:=ARP firewalling software
   DEPENDS:=+kmod-arptables
-  URL:=http://ebtables.sourceforge.net
+  URL:=https://git.netfilter.org/arptables/
 endef
 
-define Build/Compile
-	$(MAKE) -C $(PKG_BUILD_DIR) \
-		$(TARGET_CONFIGURE_OPTS) \
-		COPT_FLAGS="$(TARGET_CFLAGS)" \
-		KERNEL_DIR="./include/linux"
-endef
+MAKE_FLAGS += \
+	COPT_FLAGS="$(TARGET_CFLAGS) -D__OPTIMIZE__=1" \
+	KERNEL_DIR="$(LINUX_DIR)"
 
 define Package/arptables/install
 	$(INSTALL_DIR) $(1)/usr/sbin

package/network/utils/arptables/patches/100-always_optimize.patch

@@ -1,19 +0,0 @@
-Index: arptables-v0.0.3-4/libarptc/libarptc_incl.c
-===================================================================
---- arptables-v0.0.3-4.orig/libarptc/libarptc_incl.c	2010-03-08 16:49:28.000000000 +0100
-+++ arptables-v0.0.3-4/libarptc/libarptc_incl.c	2012-08-14 12:10:29.527945144 +0200
-@@ -11,14 +11,6 @@
- /* (C)1999 Paul ``Rusty'' Russell - Placed under the GNU GPL (See
-    COPYING for details). */
- 
--#ifndef __OPTIMIZE__
--STRUCT_ENTRY_TARGET *
--GET_TARGET(STRUCT_ENTRY *e)
--{
--	return (void *)e + e->target_offset;
--}
--#endif
--
- static int sockfd = -1;
- static void *arptc_fn = NULL;
- 

package/network/utils/arptables/patches/200-musl_fixes.patch

@@ -1,31 +0,0 @@
---- a/include/arptables.h
-+++ b/include/arptables.h
-@@ -1,6 +1,7 @@
- #ifndef _ARPTABLES_USER_H
- #define _ARPTABLES_USER_H
- 
-+#include <sys/types.h>
- #include "arptables_common.h"
- #include "libarptc/libarptc.h"
- 
---- a/arptables.c
-+++ b/arptables.c
-@@ -43,6 +43,7 @@
- #include <arptables.h>
- #include <fcntl.h>
- #include <sys/wait.h>
-+#include <net/ethernet.h>
- 
- #ifndef TRUE
- #define TRUE 1
---- a/include/libarptc/arpt_kernel_headers.h
-+++ b/include/libarptc/arpt_kernel_headers.h
-@@ -5,7 +5,7 @@
- 
- #include <limits.h>
- 
--#if defined(__GLIBC__) && __GLIBC__ == 2
-+#if 1
- #include <netinet/ip.h>
- #include <netinet/in.h>
- #include <netinet/ip_icmp.h>