From 42140052765e05c83a3ea797dce3eaad94bc3733 Mon Sep 17 00:00:00 2001
From: Dimitry Andric <dim@FreeBSD.org>
Date: Thu, 20 Apr 2023 21:27:11 +0200
Subject: [PATCH] kern.mk: clang >= 16 already infers ELFv2 for powerpc64

There is no need to pass -mabi=elfv2 explicitly anymore, and with clang
16 in fact results in a "unused argument" warning.

MFC after:	3 days
---
 sys/conf/kern.mk | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/sys/conf/kern.mk b/sys/conf/kern.mk
index 9040fced6cb..06fb48d0f93 100644
--- a/sys/conf/kern.mk
+++ b/sys/conf/kern.mk
@@ -215,7 +215,8 @@ CFLAGS.gcc+=	-mno-spe
 # Use dot symbols (or, better, the V2 ELF ABI) on powerpc64 to make
 # DDB happy. ELFv2, if available, has some other efficiency benefits.
 #
-.if ${MACHINE_ARCH:Mpowerpc64*} != ""
+.if ${MACHINE_ARCH:Mpowerpc64*} != "" && \
+    ${COMPILER_TYPE} == "clang" && ${COMPILER_VERSION} < 160000
 CFLAGS+=	-mabi=elfv2
 .endif