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https://gitlab.gnome.org/GNOME/gdm/-/merge_requests/113
From 462cc0f5346f5913cf7151044f1c232c5d21c1c3 Mon Sep 17 00:00:00 2001
From: Dudemanguy <random342@airmail.cc>
Date: Mon, 5 Oct 2020 18:41:55 -0500
Subject: [PATCH] meson: allow building with elogind
Currently, the GDM meson build has a hard dependency on systemd.
However, GDM can function just fine if one is using elogind. This allows
a user to build GDM against libelogind and also disable the systemd
system and user units.
---
common/meson.build | 2 +-
data/meson.build | 62 ++++++++++++++----------
data/pam-arch/gdm-launch-environment.pam | 1 +
libgdm/meson.build | 2 +-
meson.build | 36 +++++++++-----
meson_options.txt | 5 +-
6 files changed, 66 insertions(+), 42 deletions(-)
diff --git a/common/meson.build b/common/meson.build
index 074dd92e1..bca58f7c4 100644
--- a/common/meson.build
+++ b/common/meson.build
@@ -11,7 +11,7 @@ libgdmcommon_src = files(
)
libgdmcommon_deps = [
- libsystemd_dep,
+ logind_dep,
gobject_dep,
gio_dep,
gio_unix_dep,
diff --git a/data/meson.build b/data/meson.build
index 7c5222eaf..403336c31 100644
--- a/data/meson.build
+++ b/data/meson.build
@@ -168,41 +168,53 @@ else
service_config.set('PLYMOUTH_QUIT_SERVICE', '')
endif
-if get_option('systemdsystemunitdir') != ''
- systemd_systemunitdir = get_option('systemdsystemunitdir')
-else
- systemd_systemunitdir = systemd_dep.get_pkgconfig_variable('systemdsystemunitdir')
+systemdsystemunitdir = get_option('systemdsystemunitdir')
+if systemdsystemunitdir != 'no'
+ assert(systemd_dep.found(), 'systemd required but not found, please provide a valid systemd system unit dir or disable it')
+ if get_option('systemdsystemunitdir') != ''
+ systemd_systemunitdir = get_option('systemdsystemunitdir')
+ else
+ systemd_systemunitdir = systemd_dep.get_pkgconfig_variable('systemdsystemunitdir')
+ endif
endif
-if get_option('systemduserunitdir') != ''
- systemd_userunitdir = get_option('systemduserunitdir')
-else
- systemd_userunitdir = systemd_dep.get_pkgconfig_variable('systemduserunitdir',
- define_variable: ['prefix', get_option('prefix')])
+systemduserunitdir = get_option('systemduserunitdir')
+if systemduserunitdir != 'no'
+ assert(systemd_dep.found(), 'systemd required but not found, please provide a valid systemd user unit dir or disable it')
+ if get_option('systemduserunitdir') != ''
+ systemd_userunitdir = get_option('systemduserunitdir')
+ else
+ systemd_userunitdir = systemd_dep.get_pkgconfig_variable('systemduserunitdir',
+ define_variable: ['prefix', get_option('prefix')])
+ endif
endif
-configure_file(
- input: 'gdm.service.in',
- output: '@BASENAME@',
- configuration: service_config,
- install_dir: systemd_systemunitdir,
- format: 'cmake'
-)
+if systemdsystemunitdir != 'no'
+ configure_file(
+ input: 'gdm.service.in',
+ output: '@BASENAME@',
+ configuration: service_config,
+ install_dir: systemd_systemunitdir,
+ format: 'cmake'
+ )
+endif
gdm_gnome_session_wanted_targets = []
foreach component: gdm_gnome_user_session_wanted_components
gdm_gnome_session_wanted_targets += 'Wants=@0@.target'.format(component)
endforeach
-configure_file(
- input: 'session.conf.in',
- output: 'session.conf',
- configuration: {
- 'requires_component': gdm_gnome_shell_component,
- 'wants_required_components': '\n'.join(gdm_gnome_session_wanted_targets),
- },
- install_dir: systemd_userunitdir / 'gnome-session@gnome-login.target.d',
-)
+if systemduserunitdir != 'no'
+ configure_file(
+ input: 'session.conf.in',
+ output: 'session.conf',
+ configuration: {
+ 'requires_component': gdm_gnome_shell_component,
+ 'wants_required_components': '\n'.join(gdm_gnome_session_wanted_targets),
+ },
+ install_dir: systemd_userunitdir / 'gnome-session@gnome-login.target.d',
+ )
+endif
# XSession
if get_option('gdm-xsession')
diff --git a/libgdm/meson.build b/libgdm/meson.build
index 3f8cafbb7..83e95151b 100644
--- a/libgdm/meson.build
+++ b/libgdm/meson.build
@@ -56,7 +56,7 @@ libgdm_deps = [
glib_dep,
gio_dep,
gio_unix_dep,
- libsystemd_dep,
+ logind_dep,
libgdmcommon_dep,
]
diff --git a/meson.build b/meson.build
index e6fcf4b8b..a86a486b7 100644
--- a/meson.build
+++ b/meson.build
@@ -92,21 +92,30 @@ xdmcp_dep = cc.find_library('Xdmcp', required: get_option('xdmcp'))
if xdmcp_dep.found() and get_option('tcp-wrappers')
libwrap_dep = cc.find_library('libwrap')
endif
-# systemd
-systemd_dep = dependency('systemd')
-libsystemd_dep = dependency('libsystemd')
-if meson.version().version_compare('>= 0.53')
- systemd_multiseat_x = find_program('systemd-multi-seat-x',
- required: false,
- dirs: [
- systemd_dep.get_pkgconfig_variable('systemdutildir'),
- '/lib/systemd',
- '/usr/lib/systemd',
- ])
+
+logind_provider = get_option('logind-provider')
+systemd_dep = dependency('systemd', required: false)
+if logind_provider == 'systemd'
+ libsystemd_dep = dependency('libsystemd')
+ logind_dep = libsystemd_dep
+ if meson.version().version_compare('>= 0.53')
+ systemd_multiseat_x = find_program('systemd-multi-seat-x',
+ required: false,
+ dirs: [
+ systemd_dep.get_pkgconfig_variable('systemdutildir'),
+ '/lib/systemd',
+ '/usr/lib/systemd',
+ ])
+ else
+ systemd_multiseat_x = find_program('systemd-multi-seat-x', required: false)
+ endif
+ systemd_x_server = systemd_multiseat_x.found()? systemd_multiseat_x.path() : '/lib/systemd/systemd-multi-seat-x'
else
- systemd_multiseat_x = find_program('systemd-multi-seat-x', required: false)
+ elogind_dep = dependency('libelogind')
+ logind_dep = elogind_dep
+ systemd_x_server = 'disabled'
endif
-systemd_x_server = systemd_multiseat_x.found()? systemd_multiseat_x.path() : '/lib/systemd/systemd-multi-seat-x'
+
# Plymouth
plymouth_dep = dependency('ply-boot-client', required: get_option('plymouth'))
# Check for Solaris auditing API (ADT)
@@ -313,6 +322,7 @@ summary({
'PAM Syslog': have_pam_syslog,
'Supports PAM Extensions': pam_extensions_supported,
'SeLinux': libselinux_dep.found(),
+ 'Logind Provider': get_option('logind-provider'),
'Use GDM Xsession': get_option('gdm-xsession'),
'Use UserDisplayServer': get_option('user-display-server'),
'Use SystemdJournal': get_option('systemd-journal'),
diff --git a/meson_options.txt b/meson_options.txt
index 14e0b908b..5135d7d66 100644
--- a/meson_options.txt
+++ b/meson_options.txt
@@ -12,6 +12,7 @@ option('initial-vt', type: 'integer', value: 1, description: 'Initial virtual te
option('ipv6', type: 'boolean', value: false, description: 'Enables compilation of IPv6 code.')
option('lang-file', type: 'string', value: '', description: 'File containing default language settings.')
option('libaudit', type: 'feature', value: 'auto', description: 'Add Linux audit support.')
+option('logind-provider', type: 'combo', choices: ['systemd', 'elogind'], value: 'systemd', description: 'Which logind library to use.')
option('log-dir', type: 'string', value: '/var/log/gdm', description: 'Log directory.')
option('pam-mod-dir', type: 'string', value: '', description: 'Directory to install PAM modules in.')
option('pam-prefix', type: 'string', value: '', description: 'Specify where PAM files go.')
@@ -27,8 +28,8 @@ option('solaris', type: 'boolean', value: false, description: 'Build for Solaris
option('split-authentication', type: 'boolean', value: true, description: 'Enable multiple simultaneous PAM conversations during login.')
option('sysconfsubdir', type: 'string', value: 'gdm', description: 'Directory name used under sysconfdir.')
option('systemd-journal', type: 'boolean', value: true, description: 'Use journald support.')
-option('systemdsystemunitdir', type: 'string', value: '', description: 'Directory for systemd service files.')
-option('systemduserunitdir', type: 'string', value: '', description: 'Directory for systemd user service files.')
+option('systemdsystemunitdir', type: 'string', value: '', description: 'Directory for systemd service files, or \'no\' to disable.')
+option('systemduserunitdir', type: 'string', value: '', description: 'Directory for systemd user service files, or \'no\' to disable.')
option('tcp-wrappers', type: 'boolean', value: false, description: 'Use TCP wrappers.')
option('udev-dir', type: 'string', value: '', description: 'Directory for udev rules file.')
option('user', type: 'string', value: 'gdm', description: 'GDM\'s username.')
--
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