From 91f251b2ab3ade5de703756873142bfae2573753 Mon Sep 17 00:00:00 2001
From: Robert Wing <rew@FreeBSD.org>
Date: Tue, 11 May 2021 18:57:24 -0800
Subject: [PATCH] fstyp(8): define HAVE_ZFS macro when built with zfs
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The HAVE_ZFS macro was dropped from the Makefile during the OpenZFS
merge, bring it back.

While here, drop unused WARNS setting.

PR:             255616
Reported by:    Michael Büker <freebsd@michael-bueker.de>
Submitted by:   Michael Büker <freebsd@michael-bueker.de>
Fixes:          9e5787d2284e187abb5b654d924394a65772e004
Reviewed by:    markj
MFC after:      1 week
Differential Revision:  https://reviews.freebsd.org/D30221
---
 usr.sbin/fstyp/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/usr.sbin/fstyp/Makefile b/usr.sbin/fstyp/Makefile
index bfdc845bba4a..14b5d9dfd9c3 100644
--- a/usr.sbin/fstyp/Makefile
+++ b/usr.sbin/fstyp/Makefile
@@ -28,7 +28,7 @@ SUBDIR.${MK_TESTS}+= tests
 .if ${MK_ZFS} != "no"
 IGNORE_PRAGMA=  YES
 
-WARNS?=	0
+CFLAGS+= -DHAVE_ZFS
 CFLAGS.zfs.c+= -DIN_BASE
 CFLAGS.zfs.c+= -I${SRCTOP}/sys/contrib/openzfs/include
 CFLAGS.zfs.c+= -I${SRCTOP}/sys/contrib/openzfs/lib/libspl/include