diff --git a/Makefile b/Makefile
index c1106a4..7e1b393 100644
--- a/Makefile
+++ b/Makefile
@@ -17,7 +17,7 @@ INITDIR:=/etc/rc.d/init.d
 SYSCONFIGDIR:=/etc/sysconfig
 DESTDIR:=
 
-CFLAGS:=-Wall -Wunused -Werror
+CFLAGS:=-Wall -Wunused
 CFLAGS_SH_LIB:=-fPIC -O3
 CC:=gcc
 
diff --git a/extensions/ebt_among.c b/extensions/ebt_among.c
index f97d07e..8f5596c 100644
--- a/extensions/ebt_among.c
+++ b/extensions/ebt_among.c
@@ -12,14 +12,14 @@
 #include <getopt.h>
 #include <ctype.h>
 #include <unistd.h>
-#include "../include/ebtables_u.h"
+#include <sys/mman.h>
+#include <sys/stat.h>
+#include <fcntl.h>
 #include <netinet/ether.h>
+#include "../include/ebtables_u.h"
 #include "../include/ethernetdb.h"
 #include <linux/if_ether.h>
 #include <linux/netfilter_bridge/ebt_among.h>
-#include <sys/mman.h>
-#include <sys/stat.h>
-#include <fcntl.h>
 
 #define AMONG_DST '1'
 #define AMONG_SRC '2'
diff --git a/extensions/ebt_arpreply.c b/extensions/ebt_arpreply.c
index c3757f3..c5102a4 100644
--- a/extensions/ebt_arpreply.c
+++ b/extensions/ebt_arpreply.c
@@ -11,8 +11,8 @@
 #include <stdlib.h>
 #include <string.h>
 #include <getopt.h>
-#include "../include/ebtables_u.h"
 #include <netinet/ether.h>
+#include "../include/ebtables_u.h"
 #include <linux/netfilter_bridge/ebt_arpreply.h>
 
 static int mac_supplied;
diff --git a/extensions/ebt_ip6.c b/extensions/ebt_ip6.c
index 0465e77..a1fc1ae 100644
--- a/extensions/ebt_ip6.c
+++ b/extensions/ebt_ip6.c
@@ -53,8 +53,8 @@ static const struct option opts[] =
 
 struct icmpv6_names {
 	const char *name;
-	u_int8_t type;
-	u_int8_t code_min, code_max;
+	uint8_t type;
+	uint8_t code_min, code_max;
 };
 
 static const struct icmpv6_names icmpv6_codes[] = {
diff --git a/extensions/ebt_limit.c b/extensions/ebt_limit.c
index ee40e5c..d189a09 100644
--- a/extensions/ebt_limit.c
+++ b/extensions/ebt_limit.c
@@ -59,11 +59,11 @@ static void print_help(void)
 "                                default %u\n", EBT_LIMIT_BURST);
 }
 
-static int parse_rate(const char *rate, u_int32_t *val)
+static int parse_rate(const char *rate, uint32_t *val)
 {
 	const char *delim;
-	u_int32_t r;
-	u_int32_t mult = 1;  /* Seconds by default. */
+	uint32_t r;
+	uint32_t mult = 1;  /* Seconds by default. */
 
 	delim = strchr(rate, '/');
 	if (delim) {
@@ -151,7 +151,7 @@ static void final_check(const struct ebt_u_entry *entry,
 struct rates
 {
 	const char *name;
-	u_int32_t mult;
+	uint32_t mult;
 };
 
 static struct rates g_rates[] =
@@ -162,7 +162,7 @@ static struct rates g_rates[] =
 	{ "sec", EBT_LIMIT_SCALE }
 };
 
-static void print_rate(u_int32_t period)
+static void print_rate(uint32_t period)
 {
 	unsigned int i;
 
diff --git a/extensions/ebt_nat.c b/extensions/ebt_nat.c
index e6afbf8..8d318d1 100644
--- a/extensions/ebt_nat.c
+++ b/extensions/ebt_nat.c
@@ -10,8 +10,8 @@
 #include <stdlib.h>
 #include <string.h>
 #include <getopt.h>
-#include "../include/ebtables_u.h"
 #include <netinet/ether.h>
+#include "../include/ebtables_u.h"
 #include <linux/netfilter_bridge/ebt_nat.h>
 
 static int to_source_supplied, to_dest_supplied;
diff --git a/include/ethernetdb.h b/include/ethernetdb.h
index 46d8bfd..faf7d0f 100644
--- a/include/ethernetdb.h
+++ b/include/ethernetdb.h
@@ -30,6 +30,10 @@
 #define	_PATH_ETHERTYPES	"/etc/ethertypes"
 #endif				/* _PATH_ETHERTYPES */
 
+#ifndef __THROW
+#define __THROW
+#endif
+
 struct ethertypeent {
 	char *e_name;		/* Official ethernet type name.  */
 	char **e_aliases;	/* Alias list.  */
diff --git a/include/linux/if_ether.h b/include/linux/if_ether.h
deleted file mode 100644
index 28a15ff..0000000
--- a/include/linux/if_ether.h
+++ /dev/null
@@ -1,126 +0,0 @@
-/*
- * INET		An implementation of the TCP/IP protocol suite for the LINUX
- *		operating system.  INET is implemented using the  BSD Socket
- *		interface as the means of communication with the user level.
- *
- *		Global definitions for the Ethernet IEEE 802.3 interface.
- *
- * Version:	@(#)if_ether.h	1.0.1a	02/08/94
- *
- * Author:	Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
- *		Donald Becker, <becker@super.org>
- *		Alan Cox, <alan@lxorguk.ukuu.org.uk>
- *		Steve Whitehouse, <gw7rrm@eeshack3.swan.ac.uk>
- *
- *		This program is free software; you can redistribute it and/or
- *		modify it under the terms of the GNU General Public License
- *		as published by the Free Software Foundation; either version
- *		2 of the License, or (at your option) any later version.
- */
-
-#ifndef _LINUX_IF_ETHER_H
-#define _LINUX_IF_ETHER_H
-
-#include <linux/types.h>
-
-/*
- *	IEEE 802.3 Ethernet magic constants.  The frame sizes omit the preamble
- *	and FCS/CRC (frame check sequence).
- */
-
-#define ETH_ALEN	6		/* Octets in one ethernet addr	 */
-#define ETH_HLEN	14		/* Total octets in header.	 */
-#define ETH_ZLEN	60		/* Min. octets in frame sans FCS */
-#define ETH_DATA_LEN	1500		/* Max. octets in payload	 */
-#define ETH_FRAME_LEN	1514		/* Max. octets in frame sans FCS */
-#define ETH_FCS_LEN	4		/* Octets in the FCS		 */
-
-/*
- *	These are the defined Ethernet Protocol ID's.
- */
-
-#define ETH_P_LOOP	0x0060		/* Ethernet Loopback packet	*/
-#define ETH_P_PUP	0x0200		/* Xerox PUP packet		*/
-#define ETH_P_PUPAT	0x0201		/* Xerox PUP Addr Trans packet	*/
-#define ETH_P_IP	0x0800		/* Internet Protocol packet	*/
-#define ETH_P_X25	0x0805		/* CCITT X.25			*/
-#define ETH_P_ARP	0x0806		/* Address Resolution packet	*/
-#define	ETH_P_BPQ	0x08FF		/* G8BPQ AX.25 Ethernet Packet	[ NOT AN OFFICIALLY REGISTERED ID ] */
-#define ETH_P_IEEEPUP	0x0a00		/* Xerox IEEE802.3 PUP packet */
-#define ETH_P_IEEEPUPAT	0x0a01		/* Xerox IEEE802.3 PUP Addr Trans packet */
-#define ETH_P_DEC       0x6000          /* DEC Assigned proto           */
-#define ETH_P_DNA_DL    0x6001          /* DEC DNA Dump/Load            */
-#define ETH_P_DNA_RC    0x6002          /* DEC DNA Remote Console       */
-#define ETH_P_DNA_RT    0x6003          /* DEC DNA Routing              */
-#define ETH_P_LAT       0x6004          /* DEC LAT                      */
-#define ETH_P_DIAG      0x6005          /* DEC Diagnostics              */
-#define ETH_P_CUST      0x6006          /* DEC Customer use             */
-#define ETH_P_SCA       0x6007          /* DEC Systems Comms Arch       */
-#define ETH_P_TEB	0x6558		/* Trans Ether Bridging		*/
-#define ETH_P_RARP      0x8035		/* Reverse Addr Res packet	*/
-#define ETH_P_ATALK	0x809B		/* Appletalk DDP		*/
-#define ETH_P_AARP	0x80F3		/* Appletalk AARP		*/
-#define ETH_P_8021Q	0x8100          /* 802.1Q VLAN Extended Header  */
-#define ETH_P_IPX	0x8137		/* IPX over DIX			*/
-#define ETH_P_IPV6	0x86DD		/* IPv6 over bluebook		*/
-#define ETH_P_PAUSE	0x8808		/* IEEE Pause frames. See 802.3 31B */
-#define ETH_P_SLOW	0x8809		/* Slow Protocol. See 802.3ad 43B */
-#define ETH_P_WCCP	0x883E		/* Web-cache coordination protocol
-					 * defined in draft-wilson-wrec-wccp-v2-00.txt */
-#define ETH_P_PPP_DISC	0x8863		/* PPPoE discovery messages     */
-#define ETH_P_PPP_SES	0x8864		/* PPPoE session messages	*/
-#define ETH_P_MPLS_UC	0x8847		/* MPLS Unicast traffic		*/
-#define ETH_P_MPLS_MC	0x8848		/* MPLS Multicast traffic	*/
-#define ETH_P_ATMMPOA	0x884c		/* MultiProtocol Over ATM	*/
-#define ETH_P_LINK_CTL	0x886c		/* HPNA, wlan link local tunnel */
-#define ETH_P_ATMFATE	0x8884		/* Frame-based ATM Transport
-					 * over Ethernet
-					 */
-#define ETH_P_PAE	0x888E		/* Port Access Entity (IEEE 802.1X) */
-#define ETH_P_AOE	0x88A2		/* ATA over Ethernet		*/
-#define ETH_P_TIPC	0x88CA		/* TIPC 			*/
-#define ETH_P_1588	0x88F7		/* IEEE 1588 Timesync */
-#define ETH_P_FCOE	0x8906		/* Fibre Channel over Ethernet  */
-#define ETH_P_FIP	0x8914		/* FCoE Initialization Protocol */
-#define ETH_P_EDSA	0xDADA		/* Ethertype DSA [ NOT AN OFFICIALLY REGISTERED ID ] */
-
-/*
- *	Non DIX types. Won't clash for 1500 types.
- */
-
-#define ETH_P_802_3	0x0001		/* Dummy type for 802.3 frames  */
-#define ETH_P_AX25	0x0002		/* Dummy protocol id for AX.25  */
-#define ETH_P_ALL	0x0003		/* Every packet (be careful!!!) */
-#define ETH_P_802_2	0x0004		/* 802.2 frames 		*/
-#define ETH_P_SNAP	0x0005		/* Internal only		*/
-#define ETH_P_DDCMP     0x0006          /* DEC DDCMP: Internal only     */
-#define ETH_P_WAN_PPP   0x0007          /* Dummy type for WAN PPP frames*/
-#define ETH_P_PPP_MP    0x0008          /* Dummy type for PPP MP frames */
-#define ETH_P_LOCALTALK 0x0009		/* Localtalk pseudo type 	*/
-#define ETH_P_CAN	0x000C		/* Controller Area Network      */
-#define ETH_P_PPPTALK	0x0010		/* Dummy type for Atalk over PPP*/
-#define ETH_P_TR_802_2	0x0011		/* 802.2 frames 		*/
-#define ETH_P_MOBITEX	0x0015		/* Mobitex (kaz@cafe.net)	*/
-#define ETH_P_CONTROL	0x0016		/* Card specific control frames */
-#define ETH_P_IRDA	0x0017		/* Linux-IrDA			*/
-#define ETH_P_ECONET	0x0018		/* Acorn Econet			*/
-#define ETH_P_HDLC	0x0019		/* HDLC frames			*/
-#define ETH_P_ARCNET	0x001A		/* 1A for ArcNet :-)            */
-#define ETH_P_DSA	0x001B		/* Distributed Switch Arch.	*/
-#define ETH_P_TRAILER	0x001C		/* Trailer switch tagging	*/
-#define ETH_P_PHONET	0x00F5		/* Nokia Phonet frames          */
-#define ETH_P_IEEE802154 0x00F6		/* IEEE802.15.4 frame		*/
-#define ETH_P_CAIF	0x00F7		/* ST-Ericsson CAIF protocol	*/
-
-/*
- *	This is an Ethernet frame header.
- */
-
-struct ethhdr {
-	unsigned char	h_dest[ETH_ALEN];	/* destination eth addr	*/
-	unsigned char	h_source[ETH_ALEN];	/* source ether addr	*/
-	__be16		h_proto;		/* packet type ID field	*/
-} __attribute__((packed));
-
-
-#endif	/* _LINUX_IF_ETHER_H */
diff --git a/useful_functions.c b/useful_functions.c
index d20b68e..93ef06f 100644
--- a/useful_functions.c
+++ b/useful_functions.c
@@ -22,8 +22,7 @@
  * along with this program; if not, write to the Free Software
  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
-#include "include/ebtables_u.h"
-#include "include/ethernetdb.h"
+#define _GNU_SOURCE
 #include <stdio.h>
 #include <netinet/ether.h>
 #include <string.h>
@@ -33,6 +32,8 @@
 #include <sys/types.h>
 #include <sys/socket.h>
 #include <arpa/inet.h>
+#include "include/ebtables_u.h"
+#include "include/ethernetdb.h"
 
 const unsigned char mac_type_unicast[ETH_ALEN] =   {0,0,0,0,0,0};
 const unsigned char msk_type_unicast[ETH_ALEN] =   {1,0,0,0,0,0};