From 6fe1c2220ad8a6d7d61af487b43adb11a21b79cb Mon Sep 17 00:00:00 2001
From: Pau Espin Pedrol <pespin@sysmocom.de>
Date: Mon, 10 Sep 2018 12:27:21 +0200
Subject: [PATCH] Install systemd services with autotools

Change-Id: Id81ae8e2d8a2c9456ac0dac2c30c0d24dab3b694
---
 Makefile.am                 |  4 ++++
 configure.ac                | 18 ++++++++++++++++++
 contrib/Makefile.am         |  1 +
 contrib/systemd/Makefile.am |  5 +++++
 debian/osmo-hlr.install     |  1 +
 debian/osmo-hlr.service     |  1 -
 debian/rules                |  3 +++
 7 files changed, 32 insertions(+), 1 deletion(-)
 create mode 100644 contrib/Makefile.am
 create mode 100644 contrib/systemd/Makefile.am
 delete mode 120000 debian/osmo-hlr.service

diff --git a/Makefile.am b/Makefile.am
index 8e18167f..210e4990 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -5,6 +5,7 @@ SUBDIRS = \
 	src \
 	include \
 	sql \
+	contrib \
 	tests \
 	$(NULL)
 
@@ -12,6 +13,9 @@ EXTRA_DIST = \
 	.version \
 	$(NULL)
 
+DISTCHECK_CONFIGURE_FLAGS = \
+	--with-systemdsystemunitdir=$$dc_install_base/$(systemdsystemunitdir)
+
 pkgconfigdir = $(libdir)/pkgconfig
 pkgconfig_DATA = libosmo-gsup-client.pc
 
diff --git a/configure.ac b/configure.ac
index 16c8b51b..368f1ccd 100644
--- a/configure.ac
+++ b/configure.ac
@@ -92,6 +92,22 @@ AC_MSG_CHECKING([whether to enable VTY/CTRL tests])
 AC_MSG_RESULT([$enable_ext_tests])
 AM_CONDITIONAL(ENABLE_EXT_TESTS, test "x$enable_ext_tests" = "xyes")
 
+# https://www.freedesktop.org/software/systemd/man/daemon.html
+AC_ARG_WITH([systemdsystemunitdir],
+     [AS_HELP_STRING([--with-systemdsystemunitdir=DIR], [Directory for systemd service files])],,
+     [with_systemdsystemunitdir=auto])
+AS_IF([test "x$with_systemdsystemunitdir" = "xyes" -o "x$with_systemdsystemunitdir" = "xauto"], [
+     def_systemdsystemunitdir=$($PKG_CONFIG --variable=systemdsystemunitdir systemd)
+
+     AS_IF([test "x$def_systemdsystemunitdir" = "x"],
+   [AS_IF([test "x$with_systemdsystemunitdir" = "xyes"],
+    [AC_MSG_ERROR([systemd support requested but pkg-config unable to query systemd package])])
+    with_systemdsystemunitdir=no],
+   [with_systemdsystemunitdir="$def_systemdsystemunitdir"])])
+AS_IF([test "x$with_systemdsystemunitdir" != "xno"],
+      [AC_SUBST([systemdsystemunitdir], [$with_systemdsystemunitdir])])
+AM_CONDITIONAL([HAVE_SYSTEMD], [test "x$with_systemdsystemunitdir" != "xno"])
+
 AC_MSG_RESULT([CFLAGS="$CFLAGS"])
 AC_MSG_RESULT([CPPFLAGS="$CPPFLAGS"])
 
@@ -103,6 +119,8 @@ AC_OUTPUT(
 	include/Makefile
 	libosmo-gsup-client.pc
 	sql/Makefile
+	contrib/Makefile
+	contrib/systemd/Makefile
 	tests/Makefile
 	tests/auc/Makefile
 	tests/auc/gen_ts_55_205_test_sets/Makefile
diff --git a/contrib/Makefile.am b/contrib/Makefile.am
new file mode 100644
index 00000000..3439c97b
--- /dev/null
+++ b/contrib/Makefile.am
@@ -0,0 +1 @@
+SUBDIRS = systemd
diff --git a/contrib/systemd/Makefile.am b/contrib/systemd/Makefile.am
new file mode 100644
index 00000000..520e720e
--- /dev/null
+++ b/contrib/systemd/Makefile.am
@@ -0,0 +1,5 @@
+if HAVE_SYSTEMD
+EXTRA_DIST = osmo-hlr.service
+systemdsystemunit_DATA = \
+  osmo-hlr.service
+endif
diff --git a/debian/osmo-hlr.install b/debian/osmo-hlr.install
index 79915229..5a7c37b6 100644
--- a/debian/osmo-hlr.install
+++ b/debian/osmo-hlr.install
@@ -1,3 +1,4 @@
+/lib/systemd/system/osmo-hlr.service
 /usr/bin/osmo-hlr
 /usr/bin/osmo-hlr-db-tool
 /usr/share/doc/osmo-hlr/sql/hlr.sql
diff --git a/debian/osmo-hlr.service b/debian/osmo-hlr.service
deleted file mode 120000
index 184f5aaa..00000000
--- a/debian/osmo-hlr.service
+++ /dev/null
@@ -1 +0,0 @@
-../contrib/systemd/osmo-hlr.service
\ No newline at end of file
diff --git a/debian/rules b/debian/rules
index 1d8d8ab7..9e97c6c3 100755
--- a/debian/rules
+++ b/debian/rules
@@ -15,3 +15,6 @@ override_dh_strip:
 # Print test results in case of a failure
 override_dh_auto_test:
 	dh_auto_test || (find . -name testsuite.log -exec cat {} \; ; false)
+
+override_dh_auto_configure:
+	dh_auto_configure -- --with-systemdsystemunitdir=/lib/systemd/system