diff -Naru ipfwadm-2.3.0/Makefile ipfwadm/Makefile
--- ipfwadm-2.3.0/Makefile	1996-07-30 20:54:22.000000000 +0900
+++ ipfwadm/Makefile	2003-02-26 07:32:29.000000000 +0900
@@ -38,7 +38,7 @@
 COPTS   = -O2
 CFLAGS	= -Wall $(COPTS)
 SBIN	= /sbin
-MANDIR	= /usr/man
+MANDIR	= /usr/share/man
 INSTALL = install
 
 all:		ipfwadm ipfw.4 ipfwadm.8
diff -Naru ipfwadm-2.3.0/ipfwadm.c ipfwadm/ipfwadm.c
--- ipfwadm-2.3.0/ipfwadm.c	2003-02-26 07:01:30.000000000 +0900
+++ ipfwadm/ipfwadm.c	2003-02-26 07:30:48.000000000 +0900
@@ -103,15 +103,15 @@
 #include <getopt.h>
 #include <netdb.h>
 #include <netinet/in.h>
-
+#include <linux/types.h>
 #if defined(__GLIBC__) && (__GLIBC__ >= 2)
 #include <netinet/ip.h>
 #include <netinet/tcp.h>
 #include <netinet/udp.h>
 #include <net/if.h>
+#include <netinet/ip_icmp.h>
 #include <netinet/ip_fw.h>
-
-typedef unsigned int __u32;
+/* typedef unsigned int __u32; */
 #else
 #include <linux/ip.h>
 #include <linux/tcp.h>