Install systemd services with autotools

Change-Id: I90f1efc4433ec641a28931d5c19e2301a67cf1e9

Makefile.am

@@ -1,12 +1,15 @@
 AUTOMAKE_OPTIONS = foreign dist-bzip2
 
-SUBDIRS = src include doc
+SUBDIRS = src include doc contrib
 
 pkgconfigdir = $(libdir)/pkgconfig
 pkgconfig_DATA = libosmo-ranap.pc
 
 EXTRA_DIST = asn1 .version README.md
 
+DISTCHECK_CONFIGURE_FLAGS = \
+	--with-systemdsystemunitdir=$$dc_install_base/$(systemdsystemunitdir)
+
 @RELMAKE@
 
 BUILT_SOURCES = $(top_srcdir)/.version

configure.ac

@@ -79,6 +79,22 @@ fi
 CFLAGS="$CFLAGS -Wall"
 CPPFLAGS="$CPPFLAGS -Wall"
 
+# 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"])
 
@@ -98,4 +114,6 @@ AC_OUTPUT(
 	include/osmocom/iuh/Makefile
 	doc/Makefile
 	doc/examples/Makefile
+	contrib/Makefile
+	contrib/systemd/Makefile
 	)

contrib/Makefile.am

@@ -0,0 +1 @@
+SUBDIRS = systemd

contrib/systemd/Makefile.am

@@ -0,0 +1,5 @@
+if HAVE_SYSTEMD
+EXTRA_DIST = osmo-hnbgw.service
+systemdsystemunit_DATA = \
+  osmo-hnbgw.service
+endif

debian/osmo-hnbgw.install

@@ -1,2 +1,3 @@
+lib/systemd/system/osmo-hnbgw.service
 usr/bin/osmo-hnbgw
 usr/share/doc/osmo-iuh/examples/osmo-hnbgw.cfg

debian/osmo-hnbgw.service

@@ -1 +0,0 @@
-../contrib/systemd/osmo-hnbgw.service

debian/rules

@@ -16,3 +16,6 @@ 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