From 6e4cf32e95841b4c3ef0caeb80802bf528a35cd0 Mon Sep 17 00:00:00 2001
From: Dmitry Chagin <dchagin@FreeBSD.org>
Date: Mon, 13 May 2019 18:28:40 +0000
Subject: Add warning to the Linuxulator makefiles that building it outside of
 a kernel does not make sence.

PR:		222861
MFC after:	2 weeks
Differential Revision:	https://reviews.freebsd.org/D20179
---
 sys/modules/linux_common/Makefile | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'sys/modules/linux_common')

diff --git a/sys/modules/linux_common/Makefile b/sys/modules/linux_common/Makefile
index 9fb0210810fb..5b49a7409997 100644
--- a/sys/modules/linux_common/Makefile
+++ b/sys/modules/linux_common/Makefile
@@ -15,4 +15,8 @@ EXPORT_SYMS+=	linux_ioctl_unregister_handler
 EXPORT_SYMS+=	linux_get_osname
 EXPORT_SYMS+=	linux_get_osrelease
 
+.if !defined(KERNBUILDDIR)
+.warning Building Linuxulator outside of a kernel does not make sense
+.endif
+
 .include <bsd.kmod.mk>
-- 
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