From 87f6c19079b53220f91dfe2159b77ae005e6a721 Mon Sep 17 00:00:00 2001
From: Giuseppe Scrivano <gscrivan@redhat.com>
Date: Mon, 14 Feb 2022 10:05:35 +0100
Subject: [PATCH] Makefile: build with systemd when available

Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
---
 Makefile            | 2 +-
 hack/systemd_tag.sh | 7 +++++++
 2 files changed, 8 insertions(+), 1 deletion(-)
 create mode 100755 hack/systemd_tag.sh

diff --git a/Makefile b/Makefile
index f3d1ee817..8a10dfa05 100644
--- a/Makefile
+++ b/Makefile
@@ -3,7 +3,7 @@ export GOPROXY=https://proxy.golang.org
 APPARMORTAG := $(shell hack/apparmor_tag.sh)
 STORAGETAGS := $(shell ./btrfs_tag.sh) $(shell ./btrfs_installed_tag.sh) $(shell ./libdm_tag.sh) $(shell ./hack/libsubid_tag.sh)
 SECURITYTAGS ?= seccomp $(APPARMORTAG)
-TAGS ?= $(SECURITYTAGS) $(STORAGETAGS)
+TAGS ?= $(SECURITYTAGS) $(STORAGETAGS) $(shell ./hack/systemd_tag.sh)
 BUILDTAGS += $(TAGS)
 PREFIX := /usr/local
 BINDIR := $(PREFIX)/bin
diff --git a/hack/systemd_tag.sh b/hack/systemd_tag.sh
new file mode 100755
index 000000000..5af322881
--- /dev/null
+++ b/hack/systemd_tag.sh
@@ -0,0 +1,7 @@
+#!/usr/bin/env bash
+${CPP:-${CC:-cc} -E} ${CPPFLAGS} - > /dev/null 2> /dev/null << EOF
+#include <systemd/sd-daemon.h>
+EOF
+if test $? -eq 0 ; then
+	echo systemd
+fi