From a0c03350a39a39959a634341d74021699381bb43 Mon Sep 17 00:00:00 2001
From: Mike Silbersack <silby@FreeBSD.org>
Date: Wed, 21 Jul 2004 03:11:41 +0000
Subject: [PATCH] An a #error discouraging people from using pipe.h from places
 outside the kernel.

---
 sys/sys/pipe.h | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/sys/sys/pipe.h b/sys/sys/pipe.h
index 76b6d37d4d85..de86d30f5a07 100644
--- a/sys/sys/pipe.h
+++ b/sys/sys/pipe.h
@@ -25,10 +25,7 @@
 #define _SYS_PIPE_H_
 
 #ifndef _KERNEL
-#include <sys/time.h>			/* for struct timespec */
-#include <sys/selinfo.h>		/* for struct selinfo */
-#include <vm/vm.h>			/* for vm_page_t */
-#include <machine/param.h>		/* for PAGE_SIZE */
+#error "no user-servicable parts inside"
 #endif
 
 /*