From f7f731bf29f153b64c16a07d4bf30fd1a31252eb Mon Sep 17 00:00:00 2001
From: Mike Brady <4265913+mikebrady@users.noreply.github.com>
Date: Wed, 28 Jul 2021 16:02:37 +0100
Subject: [PATCH] Add a flag to selectively enable includion of the startup
 script.

---
 Makefile.am  | 2 ++
 README.md    | 4 ++--
 configure.ac | 6 ++++++
 3 files changed, 10 insertions(+), 2 deletions(-)

diff --git a/Makefile.am b/Makefile.am
index 906e01a..cb907f4 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -19,8 +19,10 @@ endif
 
 install-exec-hook:
 if BUILD_FOR_LINUX
+if INSTALL_SYSTEMD_STARTUP
 	[ -e $(DESTDIR)/lib/systemd/system ] || mkdir -p $(DESTDIR)/lib/systemd/system
 	cp nqptp.service $(DESTDIR)/lib/systemd/system
+endif
 endif
  # no installer for FreeBSD yet
  
diff --git a/README.md b/README.md
index a9e3c74..2bf1b74 100644
--- a/README.md
+++ b/README.md
@@ -45,11 +45,11 @@ Note that you will need superuser privileges to install, enable and start the da
 $ git clone https://github.com/mikebrady/nqptp.git
 $ cd nqptp
 $ autoreconf -fi
-$ ./configure
+$ ./configure --with-systemd-startup
 $ make
 # make install
 ```
-The `make install` installs a `systemd` startup script. You should enable it and start it in the normal way:
+The `make install` installs a `systemd` startup script as requested. You should enable it and start it in the normal way:
 
 ```
 # systemctl enable nqptp
diff --git a/configure.ac b/configure.ac
index a4a97b6..92e597e 100644
--- a/configure.ac
+++ b/configure.ac
@@ -39,6 +39,12 @@ if test -n "$GIT" && test -e ".git/index" ; then
 fi
 AM_CONDITIONAL([USE_GIT_VERSION], [test -n "$GIT" && test -e ".git/index" ])
 
+
+# Check to see if we should include the systemd stuff to define it as a service
+AC_ARG_WITH([systemd-startup],[AS_HELP_STRING([--with-systemd-startup],[install a systemd startup script during a make install])])
+AM_CONDITIONAL([INSTALL_SYSTEMD_STARTUP], [test "x$with_systemd_startup" = "xyes"])
+
+
 AC_CONFIG_SRCDIR([nqptp.c])
 AC_CONFIG_HEADERS([config.h])
 
-- 
2.47.2