From e8e87febec288793037447eb2a668f892a85ae69 Mon Sep 17 00:00:00 2001
From: Ruslan Bukin <br@FreeBSD.org>
Date: Mon, 1 Oct 2018 16:16:05 +0000
Subject: [PATCH] Fix build with GCC 8.1.

GCC 8.1 failed to build LLVM's libc++ when -Wshadow is set,
so lower down WARNS flag to 3.

This is similar to dtc(1) which uses libc++ and sets WARNS to 3.

Approved by:	re (gjb)
Sponsored by:	DARPA, AFRL
---
 usr.sbin/pmc/Makefile | 1 +
 1 file changed, 1 insertion(+)

diff --git a/usr.sbin/pmc/Makefile b/usr.sbin/pmc/Makefile
index 2f94d3e274ef..090134711b92 100644
--- a/usr.sbin/pmc/Makefile
+++ b/usr.sbin/pmc/Makefile
@@ -5,6 +5,7 @@
 .include <src.opts.mk>
 PROG_CXX=	pmc
 MAN=	
+WARNS?=	3
 CXXFLAGS+= -O0 -std=c++14
 CWARNFLAGS.gcc+= -Wno-redundant-decls