--- contrib/tcp_wrappers/rfc931.c.orig	2013-02-11 08:22:46.000000000 +0200
+++ contrib/tcp_wrappers/rfc931.c	2013-02-11 08:23:10.000000000 +0200
@@ -17,6 +17,7 @@
 
 /* System libraries. */
 
+#include <unistd.h>
 #include <stdio.h>
 #include <syslog.h>
 #include <sys/types.h>
--- /usr/src/contrib/tcp_wrappers/clean_exit.c.orig	2013-02-11 08:26:58.000000000 +0200
+++ /usr/src/contrib/tcp_wrappers/clean_exit.c	2013-02-11 08:27:17.000000000 +0200
@@ -12,6 +12,7 @@
 static char sccsid[] = "@(#) clean_exit.c 1.4 94/12/28 17:42:19";
 #endif
 
+#include <unistd.h>
 #include <stdio.h>
 
 extern void exit();
--- /usr/src/contrib/tcp_wrappers/hosts_access.c.orig	2013-02-11 08:30:42.000000000 +0200
+++ /usr/src/contrib/tcp_wrappers/hosts_access.c	2013-02-11 08:31:20.000000000 +0200
@@ -35,6 +35,8 @@
 #endif
 #include <netinet/in.h>
 #include <arpa/inet.h>
+#include <stdlib.h>
+#include <unistd.h>
 #include <stdio.h>
 #include <syslog.h>
 #include <ctype.h>
--- /usr/src/contrib/tcp_wrappers/options.c.orig	2013-02-11 08:32:30.000000000 +0200
+++ /usr/src/contrib/tcp_wrappers/options.c	2013-02-11 08:33:02.000000000 +0200
@@ -41,6 +41,8 @@
 #include <sys/socket.h>
 #include <sys/stat.h>
 #include <netinet/in.h>
+#include <stdlib.h>
+#include <unistd.h>
 #include <netdb.h>
 #include <stdio.h>
 #define SYSLOG_NAMES
--- /usr/src/contrib/tcp_wrappers/percent_x.c.orig	2013-02-11 08:34:16.000000000 +0200
+++ /usr/src/contrib/tcp_wrappers/percent_x.c	2013-02-11 08:34:34.000000000 +0200
@@ -16,6 +16,7 @@
 
 /* System libraries. */
 
+#include <unistd.h>
 #include <stdio.h>
 #include <syslog.h>
 #include <string.h>
--- /usr/src/contrib/tcp_wrappers/shell_cmd.c.orig	2013-02-11 08:36:21.000000000 +0200
+++ /usr/src/contrib/tcp_wrappers/shell_cmd.c	2013-02-11 08:38:47.000000000 +0200
@@ -16,6 +16,8 @@
 
 #include <sys/types.h>
 #include <sys/param.h>
+#include <sys/wait.h>
+#include <unistd.h>
 #include <signal.h>
 #include <stdio.h>
 #include <syslog.h>