From ad12a4ae6e0446d1bb46f1c201c898937ec171df Mon Sep 17 00:00:00 2001
From: Achill Gilgenast <achill@achill.org>
Date: Tue, 3 Feb 2026 22:49:16 +0100
Subject: [PATCH] systemd: Allow installation of systemd services without
 libsystemd

Allows installation of systemd services without libsystemd installed.
Useful for Alpine Linux where systemd services are allowed to be subpackaged
(e.g. for postmarketOS) but hasn't systemd in it's repos.

The difference in behaviour now is that "systemd-{system,user}-service =
disabled" now actually don't install the units. And that
"systemd-{system,user}-service = enabled" and the explicitly paths set,
install the units
---
 src/daemon/systemd/system/meson.build | 15 ++++++++++++---
 src/daemon/systemd/user/meson.build   | 15 ++++++++++++---
 2 files changed, 24 insertions(+), 6 deletions(-)

diff --git a/src/daemon/systemd/system/meson.build b/src/daemon/systemd/system/meson.build
index 02efc7a41..40aa7b324 100644
--- a/src/daemon/systemd/system/meson.build
+++ b/src/daemon/systemd/system/meson.build
@@ -1,13 +1,22 @@
-systemd = dependency('systemd', required : get_option('systemd-system-service'))
-if not systemd.found()
+systemd_system_services_dir = ''
+
+systemd = dependency('systemd', required : false)
+if systemd.found()
+  systemd_system_services_dir = systemd.get_variable('systemdsystemunitdir', pkgconfig_define : [ 'rootprefix', prefix])
+endif
+
+if get_option('systemd-system-service').disabled() or (get_option('systemd-system-service').auto() and not systemd.found())
   subdir_done()
 endif
 
-systemd_system_services_dir = systemd.get_variable('systemdsystemunitdir', pkgconfig_define : [ 'rootprefix', prefix])
 if get_option('systemd-system-unit-dir') != ''
   systemd_system_services_dir = get_option('systemd-system-unit-dir')
 endif
 
+if systemd_system_services_dir == ''
+  subdir_done()
+endif
+
 install_data(sources : ['pipewire.socket', 'pipewire-manager.socket', 'pipewire-pulse.socket' ],
              install_dir : systemd_system_services_dir)
 
diff --git a/src/daemon/systemd/user/meson.build b/src/daemon/systemd/user/meson.build
index 1b65d5f7a..733651402 100644
--- a/src/daemon/systemd/user/meson.build
+++ b/src/daemon/systemd/user/meson.build
@@ -1,13 +1,22 @@
-systemd = dependency('systemd', required : get_option('systemd-user-service'))
-if not systemd.found()
+systemd_user_services_dir = ''
+
+systemd = dependency('systemd', required : false)
+if systemd.found()
+  systemd_user_services_dir = systemd.get_variable('systemduserunitdir', pkgconfig_define : [ 'prefix', prefix])
+endif
+
+if get_option('systemd-user-service').disabled() or (get_option('systemd-user-service').auto() and not systemd.found())
   subdir_done()
 endif
 
-systemd_user_services_dir = systemd.get_variable('systemduserunitdir', pkgconfig_define : [ 'prefix', prefix])
 if get_option('systemd-user-unit-dir') != ''
   systemd_user_services_dir = get_option('systemd-user-unit-dir')
 endif
 
+if systemd_user_services_dir == ''
+  subdir_done()
+endif
+
 install_data(
   sources : ['pipewire.socket', 'pipewire-pulse.socket'],
   install_dir : systemd_user_services_dir)