From c4bd82d701879af2a073472eaf8d4599047793ed Mon Sep 17 00:00:00 2001
From: Alex Richardson <arichardson@FreeBSD.org>
Date: Mon, 3 Aug 2020 18:08:10 +0000
Subject: [PATCH] Allow bootstrapping mtree on Linux systems

Linux glibc has a dummy lchmod that always fails and emitting a linker
warning when used. Don't fail the build due to that warning when
bootstrapping by setting LD_FATAL_WARNINGS=no.

Reviewed By:	brooks, emaste
Differential Revision: https://reviews.freebsd.org/D25930
---
 usr.sbin/nmtree/Makefile | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/usr.sbin/nmtree/Makefile b/usr.sbin/nmtree/Makefile
index c29974ff7fcc..57705671f155 100644
--- a/usr.sbin/nmtree/Makefile
+++ b/usr.sbin/nmtree/Makefile
@@ -22,4 +22,10 @@ MLINKS=		mtree.8 nmtree.8
 HAS_TESTS=
 SUBDIR.${MK_TESTS}+= tests
 
+.if defined(BOOTSTRAPPING)
+# Linux glibc has a dummy lchmod that always fails. Don't fail due to
+# the linker warning that it emits.
+LD_FATAL_WARNINGS=no
+.endif
+
 .include <bsd.prog.mk>