make: pre-process and install systemd service files when needed

Makefile.am

@@ -114,6 +114,13 @@ dist_udevconf_DATA = udev.conf
 sharepkgconfigdir = $(datadir)/pkgconfig
 sharepkgconfig_DATA = udev/udev.pc
 
+if WITH_SYSTEMD
+systemdsystemunit_DATA = \
+	init/udev.service \
+	init/udev-settle.service \
+	init/udev-retry.service
+endif
+
 sbin_PROGRAMS = \
 	udev/udevd \
 	udev/udevadm

configure.ac

@@ -49,8 +49,7 @@ fi
 AC_ARG_WITH(firmware-path,
 	AS_HELP_STRING([--with-firmware-path=DIR[[[:DIR[...]]]]],
 	   [Firmware search path (default=/lib/firmware/updates:/lib/firmware)]),
-	[], [with_firmware_path="/lib/firmware/updates:/lib/firmware"]
-	)
+	[], [with_firmware_path="/lib/firmware/updates:/lib/firmware"])
 OLD_IFS=$IFS
 IFS=:
 for i in $with_firmware_path
@@ -64,6 +63,12 @@ done
 IFS=$OLD_IFS
 AC_SUBST([FIRMWARE_PATH], [$FIRMWARE_PATH])
 
+AC_ARG_WITH([systemdsystemunitdir],
+	AS_HELP_STRING([--with-systemdsystemunitdir=DIR], [Directory for systemd service files]),
+	[], [with_systemdsystemunitdir=$($PKG_CONFIG --variable=systemdsystemunitdir systemd)])
+AC_SUBST([systemdsystemunitdir], [$with_systemdsystemunitdir])
+AM_CONDITIONAL(WITH_SYSTEMD, [test -n "$with_systemdsystemunitdir"])
+
 AC_ARG_ENABLE([extras],
 	AS_HELP_STRING([--disable-extras], [disable extras with external dependencies]),
 	[], [enable_extras=yes])
@@ -126,10 +131,13 @@ AM_CONDITIONAL([ENABLE_INTROSPECTION], [test "x$enable_introspection" = xyes])
 AC_CONFIG_HEADERS(config.h)
 AC_CONFIG_FILES([
 	Makefile
+	udev/udev.pc
+	init/udev.service
+	init/udev-settle.service
+	init/udev-retry.service
 	libudev/libudev.pc
 	libudev/docs/Makefile
 	libudev/docs/version.xml
-	udev/udev.pc
 	extras/gudev/gudev-1.0.pc
 	extras/gudev/docs/Makefile
 	extras/gudev/docs/version.xml
@@ -153,6 +161,8 @@ AC_MSG_RESULT([
 
 	include_prefix:		${INCLUDE_PREFIX}
 
+	systemdsystemunitdir:	${systemdsystemunitdir}
+
 	logging:		${enable_logging}
 	debug:			${enable_debug}
 	selinux:		${with_selinux}

extras/mtd_probe/.gitignore

@@ -0,0 +1 @@
+mtd_probe

init/.gitignore

@@ -0,0 +1 @@
+udev*.service

init/udev-retry.service.in

@@ -5,7 +5,7 @@ After=local-fs.target
 [Service]
 Type=finish
 ValidNoProcess=yes
-ExecStart=/sbin/udevadm trigger --type=failed
+ExecStart=@sbindir@/udevadm trigger --type=failed
 
 [Install]
 WantedBy=sysinit.target

init/udev-settle.service.in

@@ -5,7 +5,7 @@ After=udev.service
 [Service]
 Type=finish
 ValidNoProcess=yes
-ExecStart=/sbin/udevadm settle
+ExecStart=@sbindir@/udevadm settle
 
 [Install]
 WantedBy=sysinit.target

init/udev.service.in

@@ -4,9 +4,9 @@ Before=sysinit.target
 
 [Service]
 Type=notify
-ExecStart=/sbin/udevd
-ExecStartPost=/sbin/udevadm trigger --type=subsystems --action=add
-ExecStartPost=/sbin/udevadm trigger --type=devices --action=add
+ExecStart=@sbindir@/udevd
+ExecStartPost=@sbindir@/udevadm trigger --type=subsystems --action=add
+ExecStartPost=@sbindir@/udevadm trigger --type=devices --action=add
 
 [Install]
 WantedBy=sysinit.target