Changed the Makefile hacking to initialize things (taken from iptables)
to using __attribute__ ((constructor)). Makes things cleaner.

--- ebtables-v2.0pre1/Makefile	Wed Apr  3 18:24:15 2002
+++ ebtables-v2.0pre2/Makefile	Sat Apr  6 21:53:00 2002
@@ -26,7 +26,7 @@
 	$(CC) $(CFLAGS) -DPROGVERSION=\"$(PROGVERSION)\" \
 	-DPROGNAME=\"$(PROGNAME)\" -c -o $@ $<
 
-ebtables: ebtables.o communication.o initext.o $(EXT_OBJS)
+ebtables: ebtables.o communication.o $(EXT_OBJS)
 	$(CC) $(CFLAGS) -o $@ $^
 
 $(MANDIR)/man8/ebtables.8: ebtables.8
--- ebtables-v2.0pre1/ebtables.c	Wed Apr  3 20:06:18 2002
+++ ebtables-v2.0pre2/ebtables.c	Sat Apr  6 21:57:05 2002
@@ -1051,7 +1051,6 @@
 	replace.selected_hook = -1;
 	replace.command = 'h';
 	// execute the _init functions of the extensions
-	init_extensions();
 
 	new_entry = (struct ebt_u_entry *)malloc(sizeof(struct ebt_u_entry));
 	if (!new_entry)
--- ebtables-v2.0pre1/extensions/ebt_nat.c	Wed Apr  3 12:27:59 2002
+++ ebtables-v2.0pre2/extensions/ebt_nat.c	Sat Apr  6 21:59:43 2002
@@ -160,7 +160,8 @@
 	opts_d,
 };
 
-void _init(void)
+static void _init(void) __attribute__ ((constructor));
+static void _init(void)
 {
 	register_target(&snat_target);
 	register_target(&dnat_target);
--- ebtables-v2.0pre1/extensions/ebt_ip.c	Wed Apr  3 12:28:44 2002
+++ ebtables-v2.0pre2/extensions/ebt_ip.c	Sat Apr  6 21:58:23 2002
@@ -301,7 +301,8 @@
 	opts,
 };
 
-void _init(void)
+static void _init(void) __attribute((constructor));
+static void _init(void)
 {
 	register_match(&ip_match);
 }
--- ebtables-v2.0pre1/extensions/ebt_arp.c	Wed Apr  3 12:29:17 2002
+++ ebtables-v2.0pre2/extensions/ebt_arp.c	Sat Apr  6 21:58:05 2002
@@ -271,7 +271,8 @@
 	opts,
 };
 
-void _init(void)
+static void _init(void) __attribute__ ((constructor));
+static void _init(void)
 {
 	register_match(&arp_match);
 }
--- ebtables-v2.0pre1/extensions/ebt_log.c	Wed Apr  3 16:23:56 2002
+++ ebtables-v2.0pre2/extensions/ebt_log.c	Sat Apr  6 21:59:34 2002
@@ -182,7 +182,9 @@
 	opts,
 };
 
-void _init(void)
+#undef _init
+static void _init(void) __attribute__ ((constructor));
+static void _init(void)
 {
 	register_watcher(&log_watcher);
 }
--- ebtables-v2.0pre1/extensions/ebt_standard.c	Mon Apr  1 12:49:59 2002
+++ ebtables-v2.0pre2/extensions/ebt_standard.c	Sat Apr  6 22:01:29 2002
@@ -59,7 +59,8 @@
 	opts
 };
 
-void _init(void)
+static void _init(void) __attribute__ ((constructor));
+static void _init(void)
 {
 	register_target(&standard);
 }
--- ebtables-v2.0pre1/extensions/ebtable_filter.c	Mon Apr  1 21:25:57 2002
+++ ebtables-v2.0pre2/extensions/ebtable_filter.c	Sat Apr  6 22:00:02 2002
@@ -24,7 +24,8 @@
 	NULL
 };
 
-void _init(void)
+static void _init(void) __attribute__ ((constructor));
+static void _init(void)
 {
 	register_table(&table);
 }
--- ebtables-v2.0pre1/extensions/ebtable_nat.c	Wed Apr  3 10:16:46 2002
+++ ebtables-v2.0pre2/extensions/ebtable_nat.c	Sat Apr  6 21:59:53 2002
@@ -24,7 +24,8 @@
 	NULL
 };
 
-void _init(void)
+static void _init(void) __attribute__ ((constructor));
+static void _init(void)
 {
 	register_table(&table);
 }
--- ebtables-v2.0pre1/include/ebtables_u.h	Wed Apr  3 17:20:17 2002
+++ ebtables-v2.0pre2/include/ebtables_u.h	Sat Apr  6 21:56:16 2002
@@ -25,9 +25,6 @@
 #define EBTABLES_U_H
 #include <linux/netfilter_bridge/ebtables.h>
 #include <linux/br_db.h>
-#ifdef _INIT
-#define _init _INIT
-#endif
 
 struct ebt_u_entries
 {