use #pragma once instead of foo*foo #define guards

#pragma once has been "un-deprecated" in gcc since 3.3, and is widely supported in other compilers. I've been using and maintaining (rebasing) this patch for a while now, as it annoyed me to see #ifndef fooblahfoo, etc all over the place, almost arrogant about the annoyance of having to define all these names to perform a commen but neccicary functionality, when a completely superior alternative exists. I havn't sent it till now, cause its kindof a style change, and it is bad voodoo to mess with style that has been established by more established editors. So feel free to lambast me as a crazy bafoon. v2 - preserve externally used headers
2024-12-23 21:35:11 +03:00 · 2012-07-18 10:07:51 -07:00 · 2012-07-18 10:07:51 -07:00 · c2f1db8f83
commit c2f1db8f83
parent 4a842cadb8
95 changed files with 95 additions and 379 deletions
--- a/src/core/automount.h
+++ b/src/core/automount.h
@ -1,7 +1,6 @@
 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/

-#ifndef fooautomounthfoo
-#define fooautomounthfoo
+#pragma once

 /***
  This file is part of systemd.
@ -72,5 +71,3 @@ AutomountState automount_state_from_string(const char *s);

 const char* automount_result_to_string(AutomountResult i);
 AutomountResult automount_result_from_string(const char *s);
-
-#endif
--- a/src/core/build.h
+++ b/src/core/build.h
@ -1,7 +1,6 @@
 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/

-#ifndef foobuildhfoo
-#define foobuildhfoo
+#pragma once

 /***
  This file is part of systemd.
@ -65,5 +64,3 @@
 #endif

 #define SYSTEMD_FEATURES _PAM_FEATURE_ " " _LIBWRAP_FEATURE_ " " _AUDIT_FEATURE_ " " _SELINUX_FEATURE_ " " _IMA_FEATURE_ " " _SYSVINIT_FEATURE_ " " _LIBCRYPTSETUP_FEATURE_
-
-#endif
--- a/src/core/bus-errors.h
+++ b/src/core/bus-errors.h
@ -1,7 +1,6 @@
 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/

-#ifndef foobuserrorshfoo
-#define foobuserrorshfoo
+#pragma once

 /***
  This file is part of systemd.
@ -54,5 +53,3 @@ static inline const char *bus_error(const DBusError *e, int r) {

        return strerror(-r);
 }
-
-#endif
--- a/src/core/cgroup-attr.h
+++ b/src/core/cgroup-attr.h
@ -1,7 +1,6 @@
 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/

-#ifndef foocgroupattrhfoo
-#define foocgroupattrhfoo
+#pragma once

 /***
  This file is part of systemd.
@ -45,5 +44,3 @@ int cgroup_attribute_apply_list(CGroupAttribute *first, CGroupBonding *b);
 CGroupAttribute *cgroup_attribute_find_list(CGroupAttribute *first, const char *controller, const char *name);

 void cgroup_attribute_free_list(CGroupAttribute *first);
-
-#endif
--- a/src/core/cgroup.h
+++ b/src/core/cgroup.h
@ -1,7 +1,6 @@
 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/

-#ifndef foocgrouphfoo
-#define foocgrouphfoo
+#pragma once

 /***
  This file is part of systemd.
@ -90,5 +89,3 @@ int cgroup_bonding_get(Manager *m, const char *cgroup, CGroupBonding **bonding);
 int cgroup_notify_empty(Manager *m, const char *group);

 Unit* cgroup_unit_by_pid(Manager *m, pid_t pid);
-
-#endif
--- a/src/core/condition.h
+++ b/src/core/condition.h
@ -1,7 +1,6 @@
 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/

-#ifndef fooconditionhfoo
-#define fooconditionhfoo
+#pragma once

 /***
  This file is part of systemd.
@ -66,5 +65,3 @@ void condition_dump_list(Condition *c, FILE *f, const char *prefix);

 const char* condition_type_to_string(ConditionType t);
 int condition_type_from_string(const char *s);
-
-#endif
--- a/src/core/dbus-automount.h
+++ b/src/core/dbus-automount.h
@ -1,7 +1,6 @@
 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/

-#ifndef foodbusautomounthfoo
-#define foodbusautomounthfoo
+#pragma once

 /***
  This file is part of systemd.
@ -30,5 +29,3 @@ DBusHandlerResult bus_automount_message_handler(Unit *u, DBusConnection *c, DBus

 extern const char bus_automount_interface[];
 extern const char bus_automount_invalidating_properties[];
-
-#endif
--- a/src/core/dbus-device.h
+++ b/src/core/dbus-device.h
@ -1,7 +1,6 @@
 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/

-#ifndef foodbusdevicehfoo
-#define foodbusdevicehfoo
+#pragma once

 /***
  This file is part of systemd.
@ -30,5 +29,3 @@ DBusHandlerResult bus_device_message_handler(Unit *u, DBusConnection *c, DBusMes

 extern const char bus_device_interface[];
 extern const char bus_device_invalidating_properties[];
-
-#endif
--- a/src/core/dbus-execute.h
+++ b/src/core/dbus-execute.h
@ -1,7 +1,6 @@
 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/

-#ifndef foodbusexecutehfoo
-#define foodbusexecutehfoo
+#pragma once

 /***
  This file is part of systemd.
@ -124,5 +123,3 @@ int bus_execute_append_command(DBusMessageIter *u, const char *property, void *d
 int bus_execute_append_kill_mode(DBusMessageIter *i, const char *property, void *data);
 int bus_execute_append_env_files(DBusMessageIter *i, const char *property, void *data);
 int bus_execute_append_syscall_filter(DBusMessageIter *i, const char *property, void *data);
-
-#endif
--- a/src/core/dbus-job.h
+++ b/src/core/dbus-job.h
@ -1,7 +1,6 @@
 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/

-#ifndef foodbusjobhfoo
-#define foodbusjobhfoo
+#pragma once

 /***
  This file is part of systemd.
@ -32,5 +31,3 @@ void bus_job_send_removed_signal(Job *j);
 extern const DBusObjectPathVTable bus_job_vtable;

 extern const char bus_job_interface[];
-
-#endif
--- a/src/core/dbus-manager.h
+++ b/src/core/dbus-manager.h
@ -1,7 +1,6 @@
 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/

-#ifndef foodbusmanagerhfoo
-#define foodbusmanagerhfoo
+#pragma once

 /***
  This file is part of systemd.
@ -27,5 +26,3 @@
 extern const DBusObjectPathVTable bus_manager_vtable;

 extern const char bus_manager_interface[];
-
-#endif
--- a/src/core/dbus-mount.h
+++ b/src/core/dbus-mount.h
@ -1,7 +1,6 @@
 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/

-#ifndef foodbusmounthfoo
-#define foodbusmounthfoo
+#pragma once

 /***
  This file is part of systemd.
@ -30,5 +29,3 @@ DBusHandlerResult bus_mount_message_handler(Unit *u, DBusConnection *c, DBusMess

 extern const char bus_mount_interface[];
 extern const char bus_mount_invalidating_properties[];
-
-#endif
--- a/src/core/dbus-path.h
+++ b/src/core/dbus-path.h
@ -1,7 +1,6 @@
 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/

-#ifndef foodbuspathhfoo
-#define foodbuspathhfoo
+#pragma once

 /***
  This file is part of systemd.
@ -31,5 +30,3 @@ DBusHandlerResult bus_path_message_handler(Unit *u, DBusConnection *c, DBusMessa
 extern const char bus_path_interface[];

 extern const char bus_path_invalidating_properties[];
-
-#endif
--- a/src/core/dbus-service.h
+++ b/src/core/dbus-service.h
@ -1,7 +1,6 @@
 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/

-#ifndef foodbusservicehfoo
-#define foodbusservicehfoo
+#pragma once

 /***
  This file is part of systemd.
@ -30,5 +29,3 @@ DBusHandlerResult bus_service_message_handler(Unit *u, DBusConnection *c, DBusMe

 extern const char bus_service_interface[];
 extern const char bus_service_invalidating_properties[];
-
-#endif
--- a/src/core/dbus-snapshot.h
+++ b/src/core/dbus-snapshot.h
@ -1,7 +1,6 @@
 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/

-#ifndef foodbussnapshothfoo
-#define foodbussnapshothfoo
+#pragma once

 /***
  This file is part of systemd.
@ -29,5 +28,3 @@
 DBusHandlerResult bus_snapshot_message_handler(Unit *u, DBusConnection *c, DBusMessage *message);

 extern const char bus_snapshot_interface[];
-
-#endif
--- a/src/core/dbus-socket.h
+++ b/src/core/dbus-socket.h
@ -1,7 +1,6 @@
 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/

-#ifndef foodbussockethfoo
-#define foodbussockethfoo
+#pragma once

 /***
  This file is part of systemd.
@ -30,5 +29,3 @@ DBusHandlerResult bus_socket_message_handler(Unit *u, DBusConnection *c, DBusMes

 extern const char bus_socket_interface[];
 extern const char bus_socket_invalidating_properties[];
-
-#endif
--- a/src/core/dbus-swap.h
+++ b/src/core/dbus-swap.h
@ -1,7 +1,6 @@
 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/

-#ifndef foodbusswaphfoo
-#define foodbusswaphfoo
+#pragma once

 /***
  This file is part of systemd.
@ -31,5 +30,3 @@ DBusHandlerResult bus_swap_message_handler(Unit *u, DBusConnection *c, DBusMessa

 extern const char bus_swap_interface[];
 extern const char bus_swap_invalidating_properties[];
-
-#endif
--- a/src/core/dbus-target.h
+++ b/src/core/dbus-target.h
@ -1,7 +1,6 @@
 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/

-#ifndef foodbustargethfoo
-#define foodbustargethfoo
+#pragma once

 /***
  This file is part of systemd.
@ -29,5 +28,3 @@
 DBusHandlerResult bus_target_message_handler(Unit *u, DBusConnection *c, DBusMessage *message);

 extern const char bus_target_interface[];
-
-#endif
--- a/src/core/dbus-timer.h
+++ b/src/core/dbus-timer.h
@ -1,7 +1,6 @@
 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/

-#ifndef foodbustimerhfoo
-#define foodbustimerhfoo
+#pragma once

 /***
  This file is part of systemd.
@ -30,5 +29,3 @@ DBusHandlerResult bus_timer_message_handler(Unit *u, DBusConnection *c, DBusMess

 extern const char bus_timer_interface[];
 extern const char bus_timer_invalidating_properties[];
-
-#endif
--- a/src/core/dbus-unit.h
+++ b/src/core/dbus-unit.h
@ -1,7 +1,6 @@
 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/

-#ifndef foodbusunithfoo
-#define foodbusunithfoo
+#pragma once

 /***
  This file is part of systemd.
@ -138,5 +137,3 @@ void bus_unit_send_removed_signal(Unit *u);
 extern const DBusObjectPathVTable bus_unit_vtable;

 extern const char bus_unit_interface[];
-
-#endif
--- a/src/core/dbus.h
+++ b/src/core/dbus.h
@ -1,7 +1,6 @@
 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/

-#ifndef foodbushfoo
-#define foodbushfoo
+#pragma once

 /***
  This file is part of systemd.
@ -49,5 +48,3 @@ void bus_broadcast_finished(Manager *m, usec_t kernel_usec, usec_t initrd_usec,
 #define BUS_PENDING_CALL_NAME(m, p) dbus_pending_call_get_data((p), (m)->name_data_slot)

 extern const char * const bus_interface_table[];
-
-#endif
--- a/src/core/device.h
+++ b/src/core/device.h
@ -1,7 +1,6 @@
 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/

-#ifndef foodevicehfoo
-#define foodevicehfoo
+#pragma once

 /***
  This file is part of systemd.
@ -55,5 +54,3 @@ void device_fd_event(Manager *m, int events);

 const char* device_state_to_string(DeviceState i);
 DeviceState device_state_from_string(const char *s);
-
-#endif
--- a/src/core/execute.h
+++ b/src/core/execute.h
@ -1,7 +1,6 @@
 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/

-#ifndef fooexecutehfoo
-#define fooexecutehfoo
+#pragma once

 /***
  This file is part of systemd.
@ -235,5 +234,3 @@ KillMode kill_mode_from_string(const char *s);

 const char *kill_who_to_string(KillWho k);
 KillWho kill_who_from_string(const char *s);
-
-#endif
--- a/src/core/fdset.h
+++ b/src/core/fdset.h
@ -1,7 +1,6 @@
 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/

-#ifndef foofdsethfoo
-#define foofdsethfoo
+#pragma once

 /***
  This file is part of systemd.
@ -36,5 +35,3 @@ int fdset_remove(FDSet *s, int fd);
 int fdset_new_fill(FDSet **_s);

 int fdset_cloexec(FDSet *fds, bool b);
-
-#endif
--- a/src/core/hostname-setup.h
+++ b/src/core/hostname-setup.h
@ -1,7 +1,6 @@
 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/

-#ifndef foohostnamesetuphfoo
-#define foohostnamesetuphfoo
+#pragma once

 /***
  This file is part of systemd.
@ -23,5 +22,3 @@
 ***/

 int hostname_setup(void);
-
-#endif
--- a/src/core/ima-setup.h
+++ b/src/core/ima-setup.h
@ -1,7 +1,6 @@
 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/

-#ifndef fooimasetuphfoo
-#define fooimasetuphfoo
+#pragma once

 /***
  This file is part of systemd.
@ -25,5 +24,3 @@
 ***/

 int ima_setup(void);
-
-#endif
--- a/src/core/job.h
+++ b/src/core/job.h
@ -1,7 +1,6 @@
 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/

-#ifndef foojobhfoo
-#define foojobhfoo
+#pragma once

 /***
  This file is part of systemd.
@ -229,5 +228,3 @@ JobMode job_mode_from_string(const char *s);

 const char* job_result_to_string(JobResult t);
 JobResult job_result_from_string(const char *s);
-
-#endif
--- a/src/core/kmod-setup.h
+++ b/src/core/kmod-setup.h
@ -1,7 +1,6 @@
 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/

-#ifndef fookmodsetuphfoo
-#define fookmodsetuphfoo
+#pragma once

 /***
  This file is part of systemd.
@ -23,5 +22,3 @@
 ***/

 int kmod_setup(void);
-
-#endif
--- a/src/core/load-dropin.h
+++ b/src/core/load-dropin.h
@ -1,7 +1,6 @@
 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/

-#ifndef fooloaddropinhfoo
-#define fooloaddropinhfoo
+#pragma once

 /***
  This file is part of systemd.
@ -27,5 +26,3 @@
 /* Read service data supplementary drop-in directories */

 int unit_load_dropin(Unit *u);
-
-#endif
--- a/src/core/load-fragment.h
+++ b/src/core/load-fragment.h
@ -1,7 +1,6 @@
 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/

-#ifndef fooloadfragmenthfoo
-#define fooloadfragmenthfoo
+#pragma once

 /***
  This file is part of systemd.
@ -87,5 +86,3 @@ int config_parse_syscall_filter(const char *filename, unsigned line, const char
 /* gperf prototypes */
 const struct ConfigPerfItem* load_fragment_gperf_lookup(const char *key, unsigned length);
 extern const char load_fragment_gperf_nulstr[];
-
-#endif
--- a/src/core/locale-setup.h
+++ b/src/core/locale-setup.h
@ -1,7 +1,6 @@
 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/

-#ifndef foolocalesetuphfoo
-#define foolocalesetuphfoo
+#pragma once

 /***
  This file is part of systemd.
@ -23,5 +22,3 @@
 ***/

 int locale_setup(void);
-
-#endif
--- a/src/core/loopback-setup.h
+++ b/src/core/loopback-setup.h
@ -1,7 +1,6 @@
 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/

-#ifndef fooloopbacksetuphfoo
-#define fooloopbacksetuphfoo
+#pragma once

 /***
  This file is part of systemd.
@ -23,5 +22,3 @@
 ***/

 int loopback_setup(void);
-
-#endif
--- a/src/core/machine-id-setup.h
+++ b/src/core/machine-id-setup.h
@ -1,7 +1,6 @@
 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/

-#ifndef foomachineidsetuphfoo
-#define foomachineidsetuphfoo
+#pragma once

 /***
  This file is part of systemd.
@ -23,5 +22,3 @@
 ***/

 int machine_id_setup(void);
-
-#endif
--- a/src/core/manager.h
+++ b/src/core/manager.h
@ -1,7 +1,6 @@
 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/

-#ifndef foomanagerhfoo
-#define foomanagerhfoo
+#pragma once

 /***
  This file is part of systemd.
@ -304,5 +303,3 @@ bool manager_get_show_status(Manager *m);

 const char *manager_running_as_to_string(ManagerRunningAs i);
 ManagerRunningAs manager_running_as_from_string(const char *s);
-
-#endif
--- a/src/core/mount-setup.h
+++ b/src/core/mount-setup.h
@ -1,7 +1,6 @@
 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/

-#ifndef foomountsetuphfoo
-#define foomountsetuphfoo
+#pragma once

 /***
  This file is part of systemd.
@ -32,5 +31,3 @@ int mount_cgroup_controllers(char ***join_controllers);

 bool mount_point_is_api(const char *path);
 bool mount_point_ignore(const char *path);
-
-#endif
--- a/src/core/mount.h
+++ b/src/core/mount.h
@ -1,7 +1,6 @@
 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/

-#ifndef foomounthfoo
-#define foomounthfoo
+#pragma once

 /***
  This file is part of systemd.
@ -118,5 +117,3 @@ MountExecCommand mount_exec_command_from_string(const char *s);

 const char* mount_result_to_string(MountResult i);
 MountResult mount_result_from_string(const char *s);
-
-#endif
--- a/src/core/namespace.h
+++ b/src/core/namespace.h
@ -1,7 +1,6 @@
 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/

-#ifndef foonamespacehfoo
-#define foonamespacehfoo
+#pragma once

 /***
  This file is part of systemd.
@ -30,5 +29,3 @@ int setup_namespace(
                char **inaccessible,
                bool private_tmp,
                unsigned long flags);
-
-#endif
--- a/src/core/path.h
+++ b/src/core/path.h
@ -1,7 +1,6 @@
 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/

-#ifndef foopathhfoo
-#define foopathhfoo
+#pragma once

 /***
  This file is part of systemd.
@ -109,5 +108,3 @@ PathType path_type_from_string(const char *s);

 const char* path_result_to_string(PathResult i);
 PathResult path_result_from_string(const char *s);
-
-#endif
--- a/src/core/selinux-setup.h
+++ b/src/core/selinux-setup.h
@ -1,7 +1,6 @@
 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/

-#ifndef fooselinuxsetuphfoo
-#define fooselinuxsetuphfoo
+#pragma once

 /***
  This file is part of systemd.
@ -25,5 +24,3 @@
 #include <stdbool.h>

 int selinux_setup(bool *loaded_policy);
-
-#endif
--- a/src/core/service.h
+++ b/src/core/service.h
@ -1,7 +1,6 @@
 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/

-#ifndef fooservicehfoo
-#define fooservicehfoo
+#pragma once

 /***
  This file is part of systemd.
@ -216,5 +215,3 @@ ServiceResult service_result_from_string(const char *s);

 const char* start_limit_action_to_string(StartLimitAction i);
 StartLimitAction start_limit_action_from_string(const char *s);
-
-#endif
--- a/src/core/snapshot.h
+++ b/src/core/snapshot.h
@ -1,7 +1,6 @@
 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/

-#ifndef foosnapshothfoo
-#define foosnapshothfoo
+#pragma once

 /***
  This file is part of systemd.
@ -49,5 +48,3 @@ void snapshot_remove(Snapshot *s);

 const char* snapshot_state_to_string(SnapshotState i);
 SnapshotState snapshot_state_from_string(const char *s);
-
-#endif
--- a/src/core/socket.h
+++ b/src/core/socket.h
@ -1,7 +1,6 @@
 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/

-#ifndef foosockethfoo
-#define foosockethfoo
+#pragma once

 /***
  This file is part of systemd.
@ -169,5 +168,3 @@ SocketExecCommand socket_exec_command_from_string(const char *s);

 const char* socket_result_to_string(SocketResult i);
 SocketResult socket_result_from_string(const char *s);
-
-#endif
--- a/src/core/special.h
+++ b/src/core/special.h
@ -1,7 +1,6 @@
 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/

-#ifndef foospecialhfoo
-#define foospecialhfoo
+#pragma once

 /***
  This file is part of systemd.
@ -86,5 +85,3 @@
 #define SPECIAL_RUNLEVEL3_TARGET "runlevel3.target"
 #define SPECIAL_RUNLEVEL4_TARGET "runlevel4.target"
 #define SPECIAL_RUNLEVEL5_TARGET "runlevel5.target"
-
-#endif
--- a/src/core/swap.h
+++ b/src/core/swap.h
@ -1,7 +1,6 @@
 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/

-#ifndef fooswaphfoo
-#define fooswaphfoo
+#pragma once

 /***
  This file is part of systemd.
@ -119,5 +118,3 @@ SwapExecCommand swap_exec_command_from_string(const char *s);

 const char* swap_result_to_string(SwapResult i);
 SwapResult swap_result_from_string(const char *s);
-
-#endif
--- a/src/core/sysfs-show.h
+++ b/src/core/sysfs-show.h
@ -1,7 +1,6 @@
 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/

-#ifndef foosysfsshowhfoo
-#define foosysfsshowhfoo
+#pragma once

 /***
  This file is part of systemd.
@ -23,5 +22,3 @@
 ***/

 int show_sysfs(const char *seat, const char *prefix, unsigned columns);
-
-#endif
--- a/src/core/target.h
+++ b/src/core/target.h
@ -1,7 +1,6 @@
 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/

-#ifndef footargethfoo
-#define footargethfoo
+#pragma once

 /***
  This file is part of systemd.
@ -43,5 +42,3 @@ extern const UnitVTable target_vtable;

 const char* target_state_to_string(TargetState i);
 TargetState target_state_from_string(const char *s);
-
-#endif
--- a/src/core/tcpwrap.h
+++ b/src/core/tcpwrap.h
@ -1,7 +1,6 @@
 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/

-#ifndef foolibwraphfoo
-#define foolibwraphfoo
+#pragma once

 /***
  This file is part of systemd.
@ -25,5 +24,3 @@
 #include <stdbool.h>

 bool socket_tcpwrap(int fd, const char *name);
-
-#endif
--- a/src/core/timer.h
+++ b/src/core/timer.h
@ -1,7 +1,6 @@
 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/

-#ifndef footimerhfoo
-#define footimerhfoo
+#pragma once

 /***
  This file is part of systemd.
@ -89,5 +88,3 @@ TimerBase timer_base_from_string(const char *s);

 const char* timer_result_to_string(TimerResult i);
 TimerResult timer_result_from_string(const char *s);
-
-#endif
--- a/src/core/umount.h
+++ b/src/core/umount.h
@ -1,7 +1,6 @@
 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/

-#ifndef fooumounthfoo
-#define fooumounthfoo
+#pragma once

 /***
  This file is part of systemd.
@ -29,5 +28,3 @@ int swapoff_all(bool *changed);
 int loopback_detach_all(bool *changed);

 int dm_detach_all(bool *changed);
-
-#endif
--- a/src/core/unit.h
+++ b/src/core/unit.h
@ -1,7 +1,6 @@
 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/

-#ifndef foounithfoo
-#define foounithfoo
+#pragma once

 /***
  This file is part of systemd.
@ -544,5 +543,3 @@ UnitActiveState unit_active_state_from_string(const char *s);

 const char *unit_dependency_to_string(UnitDependency i);
 UnitDependency unit_dependency_from_string(const char *s);
-
-#endif
--- a/src/journal/compress.h
+++ b/src/journal/compress.h
@ -1,7 +1,6 @@
 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/

-#ifndef foocompresshfoo
-#define foocompresshfoo
+#pragma once

 /***
  This file is part of systemd.
@ -34,5 +33,3 @@ bool uncompress_startswith(const void *src, uint64_t src_size,
                           void **buffer, uint64_t *buffer_size,
                           const void *prefix, uint64_t prefix_len,
                           uint8_t extra);
-
-#endif
--- a/src/journal/journal-def.h
+++ b/src/journal/journal-def.h
@ -1,7 +1,6 @@
 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/

-#ifndef foojournaldefhfoo
-#define foojournaldefhfoo
+#pragma once

 /***
  This file is part of systemd.
@ -182,5 +181,3 @@ _packed_ struct Header {
        le64_t n_data;
        le64_t n_fields;
 };
-
-#endif
--- a/src/journal/journal-file.h
+++ b/src/journal/journal-file.h
@ -1,7 +1,6 @@
 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/

-#ifndef foojournalfilehfoo
-#define foojournalfilehfoo
+#pragma once

 /***
  This file is part of systemd.
@ -147,5 +146,3 @@ int journal_file_get_cutoff_realtime_usec(JournalFile *f, usec_t *from, usec_t *
 int journal_file_get_cutoff_monotonic_usec(JournalFile *f, sd_id128_t boot, usec_t *from, usec_t *to);

 bool journal_file_rotate_suggested(JournalFile *f);
-
-#endif
--- a/src/journal/journal-internal.h
+++ b/src/journal/journal-internal.h
@ -1,7 +1,6 @@
 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/

-#ifndef foojournalinternalhfoo
-#define foojournalinternalhfoo
+#pragma once

 /***
  This file is part of systemd.
@ -112,4 +111,3 @@ struct sd_journal {
 char *journal_make_match_string(sd_journal *j);
 void journal_print_header(sd_journal *j);

-#endif
--- a/src/journal/journal-rate-limit.h
+++ b/src/journal/journal-rate-limit.h
@ -1,7 +1,6 @@
 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/

-#ifndef foojournalratelimithfoo
-#define foojournalratelimithfoo
+#pragma once

 /***
  This file is part of systemd.
@ -30,5 +29,3 @@ typedef struct JournalRateLimit JournalRateLimit;
 JournalRateLimit *journal_rate_limit_new(usec_t interval, unsigned burst);
 void journal_rate_limit_free(JournalRateLimit *r);
 int journal_rate_limit_test(JournalRateLimit *r, const char *id, int priority, uint64_t available);
-
-#endif
--- a/src/journal/journald.h
+++ b/src/journal/journald.h
@ -1,7 +1,6 @@
 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/

-#ifndef foojournaldhfoo
-#define foojournaldhfoo
+#pragma once

 /***
  This file is part of systemd.
@ -106,5 +105,3 @@ int config_parse_storage(const char *filename, unsigned line, const char *sectio

 const char *storage_to_string(Storage s);
 Storage storage_from_string(const char *s);
-
-#endif
--- a/src/journal/lookup3.h
+++ b/src/journal/lookup3.h
@ -1,7 +1,6 @@
 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/

-#ifndef foolookup3hfoo
-#define foolookup3hfoo
+#pragma once

 #include <inttypes.h>
 #include <sys/types.h>
@ -21,5 +20,3 @@ static inline uint64_t hash64(const void *data, size_t length) {

        return ((uint64_t) a << 32ULL) | (uint64_t) b;
 }
-
-#endif
--- a/src/login/logind-acl.h
+++ b/src/login/logind-acl.h
@ -1,7 +1,6 @@
 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/

-#ifndef foologindaclhfoo
-#define foologindaclhfoo
+#pragma once

 /***
  This file is part of systemd.
@ -56,5 +55,3 @@ static inline int devnode_acl_all(struct udev *udev,
 }

 #endif
-
-#endif
--- a/src/login/logind-device.h
+++ b/src/login/logind-device.h
@ -1,7 +1,6 @@
 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/

-#ifndef foologinddevicehfoo
-#define foologinddevicehfoo
+#pragma once

 /***
  This file is part of systemd.
@ -44,5 +43,3 @@ Device* device_new(Manager *m, const char *sysfs);
 void device_free(Device *d);
 void device_attach(Device *d, Seat *s);
 void device_detach(Device *d);
-
-#endif
--- a/src/login/logind-seat.h
+++ b/src/login/logind-seat.h
@ -1,7 +1,6 @@
 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/

-#ifndef foologindseathfoo
-#define foologindseathfoo
+#pragma once

 /***
  This file is part of systemd.
@ -82,5 +81,3 @@ extern const DBusObjectPathVTable bus_seat_vtable;

 int seat_send_signal(Seat *s, bool new_seat);
 int seat_send_changed(Seat *s, const char *properties);
-
-#endif
--- a/src/login/logind-session.h
+++ b/src/login/logind-session.h
@ -1,7 +1,6 @@
 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/

-#ifndef foologindsessionhfoo
-#define foologindsessionhfoo
+#pragma once

 /***
  This file is part of systemd.
@ -145,5 +144,3 @@ SessionClass session_class_from_string(const char *s);

 const char *kill_who_to_string(KillWho k);
 KillWho kill_who_from_string(const char *s);
-
-#endif
--- a/src/login/logind-user.h
+++ b/src/login/logind-user.h
@ -1,7 +1,6 @@
 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/

-#ifndef foologinduserhfoo
-#define foologinduserhfoo
+#pragma once

 /***
  This file is part of systemd.
@ -83,5 +82,3 @@ int user_send_changed(User *u, const char *properties);

 const char* user_state_to_string(UserState s);
 UserState user_state_from_string(const char *s);
-
-#endif
--- a/src/login/logind.h
+++ b/src/login/logind.h
@ -1,7 +1,6 @@
 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/

-#ifndef foologindhfoo
-#define foologindhfoo
+#pragma once

 /***
  This file is part of systemd.
@ -164,5 +163,3 @@ int manager_dispatch_delayed(Manager *manager);

 /* gperf lookup function */
 const struct ConfigPerfItem* logind_gperf_lookup(const char *key, unsigned length);
-
-#endif
--- a/src/readahead/readahead-common.h
+++ b/src/readahead/readahead-common.h
@ -1,7 +1,6 @@
 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/

-#ifndef fooreadaheadcommonhfoo
-#define fooreadaheadcommonhfoo
+#pragma once

 /***
  This file is part of systemd.
@ -60,5 +59,3 @@ int block_set_readahead(const char *p, uint64_t bytes);
 int main_collect(const char *root);
 int main_replay(const char *root);
 int main_analyze(const char *pack_path);
-
-#endif
--- a/src/shared/acl-util.h
+++ b/src/shared/acl-util.h
@ -1,7 +1,6 @@
 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/

-#ifndef fooaclutilhfoo
-#define fooaclutilhfoo
+#pragma once

 /***
  This file is part of systemd.
@ -23,5 +22,3 @@
 ***/

 int acl_find_uid(acl_t acl, uid_t uid, acl_entry_t *entry);
-
-#endif
--- a/src/shared/ask-password-api.h
+++ b/src/shared/ask-password-api.h
@ -1,7 +1,6 @@
 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/

-#ifndef fooaskpasswordapihfoo
-#define fooaskpasswordapihfoo
+#pragma once

 /***
  This file is part of systemd.
@ -29,5 +28,3 @@ int ask_password_tty(const char *message, usec_t until, const char *flag_file, c
 int ask_password_agent(const char *message, const char *icon, usec_t until, bool accept_cached, char ***_passphrases);

 int ask_password_auto(const char *message, const char *icon, usec_t until, bool accept_cached, char ***_passphrases);
-
-#endif
--- a/src/shared/cgroup-util.h
+++ b/src/shared/cgroup-util.h
@ -1,7 +1,6 @@
 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/

-#ifndef foocgrouputilhfoo
-#define foocgrouputilhfoo
+#pragma once

 /***
  This file is part of systemd.
@ -73,5 +72,3 @@ int cg_pid_get_cgroup(pid_t pid, char **root, char **cgroup);
 int cg_pid_get_unit(pid_t pid, char **unit);

 char **cg_shorten_controllers(char **controllers);
-
-#endif
--- a/src/shared/conf-parser.h
+++ b/src/shared/conf-parser.h
@ -1,7 +1,6 @@
 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/

-#ifndef fooconfparserhfoo
-#define fooconfparserhfoo
+#pragma once

 /***
  This file is part of systemd.
@ -134,5 +133,3 @@ int config_parse_level(const char *filename, unsigned line, const char *section,
                                                                        \
                return 0;                                               \
        }
-
-#endif
--- a/src/shared/dbus-common.h
+++ b/src/shared/dbus-common.h
@ -1,7 +1,6 @@
 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/

-#ifndef foodbuscommonhfoo
-#define foodbuscommonhfoo
+#pragma once

 /***
  This file is part of systemd.
@ -204,5 +203,3 @@ void bus_async_unregister_and_exit(DBusConnection *bus, const char *name);
 DBusHandlerResult bus_exit_idle_filter(DBusConnection *bus, DBusMessage *m, void *userdata);

 pid_t bus_get_unix_process_id(DBusConnection *connection, const char *name, DBusError *error);
-
-#endif
--- a/src/shared/dbus-loop.h
+++ b/src/shared/dbus-loop.h
@ -1,7 +1,6 @@
 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/

-#ifndef foodbusloophfoo
-#define foodbusloophfoo
+#pragma once

 /***
  This file is part of systemd.
@ -26,5 +25,3 @@

 int bus_loop_open(DBusConnection *c);
 int bus_loop_dispatch(int fd);
-
-#endif
--- a/src/shared/def.h
+++ b/src/shared/def.h
@ -1,7 +1,6 @@
 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/

-#ifndef foodefhfoo
-#define foodefhfoo
+#pragma once

 /***
  This file is part of systemd.
@ -34,5 +33,3 @@

 #define SIGNALS_CRASH_HANDLER SIGSEGV,SIGILL,SIGFPE,SIGBUS,SIGQUIT,SIGABRT
 #define SIGNALS_IGNORE SIGKILL,SIGPIPE
-
-#endif
--- a/src/shared/exit-status.h
+++ b/src/shared/exit-status.h
@ -1,7 +1,6 @@
 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/

-#ifndef fooexitstatushfoo
-#define fooexitstatushfoo
+#pragma once

 /***
  This file is part of systemd.
@ -82,5 +81,3 @@ const char* exit_status_to_string(ExitStatus status, ExitStatusLevel level);

 bool is_clean_exit(int code, int status);
 bool is_clean_exit_lsb(int code, int status);
-
-#endif
--- a/src/shared/hashmap.h
+++ b/src/shared/hashmap.h
@ -1,7 +1,6 @@
 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/

-#ifndef foohashmaphfoo
-#define foohashmaphfoo
+#pragma once

 /***
  This file is part of systemd.
@ -89,5 +88,3 @@ char **hashmap_get_strv(Hashmap *h);

 #define HASHMAP_FOREACH_BACKWARDS(e, h, i) \
        for ((i) = ITERATOR_LAST, (e) = hashmap_iterate_backwards((h), &(i), NULL); (e); (e) = hashmap_iterate_backwards((h), &(i), NULL))
-
-#endif
--- a/src/shared/install.h
+++ b/src/shared/install.h
@ -1,7 +1,6 @@
 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/

-#ifndef fooinstallhfoo
-#define fooinstallhfoo
+#pragma once

 /***
  This file is part of systemd.
@ -85,5 +84,3 @@ UnitFileState unit_file_state_from_string(const char *s);

 const char *unit_file_change_type_to_string(UnitFileChangeType s);
 UnitFileChangeType unit_file_change_type_from_string(const char *s);
-
-#endif
--- a/src/shared/label.h
+++ b/src/shared/label.h
@ -1,7 +1,6 @@
 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/

-#ifndef foolabelhfoo
-#define foolabelhfoo
+#pragma once

 /***
  This file is part of systemd.
@ -46,5 +45,3 @@ int label_mkdir(const char *path, mode_t mode, bool apply);
 void label_retest_selinux(void);

 int label_bind(int fd, const struct sockaddr *addr, socklen_t addrlen);
-
-#endif
--- a/src/shared/list.h
+++ b/src/shared/list.h
@ -1,7 +1,6 @@
 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/

-#ifndef foolisthfoo
-#define foolisthfoo
+#pragma once

 /***
  This file is part of systemd.
@ -124,5 +123,3 @@

 #define LIST_FOREACH_AFTER(name,i,p)                                    \
        for ((i) = (p)->name##_next; (i); (i) = (i)->name##_next)
-
-#endif
--- a/src/shared/log.h
+++ b/src/shared/log.h
@ -1,7 +1,6 @@
 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/

-#ifndef foologhfoo
-#define foologhfoo
+#pragma once

 /***
  This file is part of systemd.
@ -108,5 +107,3 @@ int log_dump_internal(

 const char *log_target_to_string(LogTarget target);
 LogTarget log_target_from_string(const char *s);
-
-#endif
--- a/src/shared/logs-show.h
+++ b/src/shared/logs-show.h
@ -1,7 +1,6 @@
 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/

-#ifndef foologsshowhfoo
-#define foologsshowhfoo
+#pragma once

 /***
  This file is part of systemd.
@ -60,5 +59,3 @@ int show_journal_by_unit(

 const char* output_mode_to_string(OutputMode m);
 OutputMode output_mode_from_string(const char *s);
-
-#endif
--- a/src/shared/macro.h
+++ b/src/shared/macro.h
@ -1,7 +1,6 @@
 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/

-#ifndef foomacrohfoo
-#define foomacrohfoo
+#pragma once

 /***
  This file is part of systemd.
@ -189,5 +188,3 @@ static inline size_t IOVEC_INCREMENT(struct iovec *i, unsigned n, size_t k) {
 }

 #include "log.h"
-
-#endif
--- a/src/shared/missing.h
+++ b/src/shared/missing.h
@ -1,7 +1,6 @@
 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/

-#ifndef foomissinghfoo
-#define foomissinghfoo
+#pragma once

 /***
  This file is part of systemd.
@ -191,5 +190,3 @@ static inline pid_t gettid(void) {
 #ifndef PR_SET_NO_NEW_PRIVS
 #define PR_SET_NO_NEW_PRIVS 38
 #endif
-
-#endif
--- a/src/shared/pager.h
+++ b/src/shared/pager.h
@ -1,7 +1,6 @@
 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/

-#ifndef foopagerhfoo
-#define foopagerhfoo
+#pragma once

 /***
  This file is part of systemd.
@ -24,5 +23,3 @@

 void pager_open(void);
 void pager_close(void);
-
-#endif
--- a/src/shared/path-lookup.h
+++ b/src/shared/path-lookup.h
@ -1,7 +1,6 @@
 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/

-#ifndef foopathlookuphfoo
-#define foopathlookuphfoo
+#pragma once

 /***
  This file is part of systemd.
@ -36,5 +35,3 @@ int user_config_home(char **config_home);

 int lookup_paths_init(LookupPaths *p, ManagerRunningAs running_as, bool personal, const char *generator, const char *generator_early, const char *generator_late);
 void lookup_paths_free(LookupPaths *p);
-
-#endif
--- a/src/shared/polkit.h
+++ b/src/shared/polkit.h
@ -1,7 +1,6 @@
 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/

-#ifndef foopolkithfoo
-#define foopolkithfoo
+#pragma once

 /***
  This file is part of systemd.
@ -32,5 +31,3 @@ int verify_polkit(
                bool interactive,
                bool *challenge,
                DBusError *error);
-
-#endif
--- a/src/shared/ratelimit.h
+++ b/src/shared/ratelimit.h
@ -1,7 +1,6 @@
 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/

-#ifndef fooratelimithfoo
-#define fooratelimithfoo
+#pragma once

 /***
  This file is part of systemd.
@ -56,5 +55,3 @@ typedef struct RateLimit {
        } while (false)

 bool ratelimit_test(RateLimit *r);
-
-#endif
--- a/src/shared/set.h
+++ b/src/shared/set.h
@ -1,7 +1,6 @@
 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/

-#ifndef foosethfoo
-#define foosethfoo
+#pragma once

 /***
  This file is part of systemd.
@ -67,5 +66,3 @@ void* set_last(Set *s);

 #define SET_FOREACH_BACKWARDS(e, s, i) \
        for ((i) = ITERATOR_LAST, (e) = set_iterate_backwards((s), &(i)); (e); (e) = set_iterate_backwards((s), &(i)))
-
-#endif
--- a/src/shared/socket-util.h
+++ b/src/shared/socket-util.h
@ -1,7 +1,6 @@
 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/

-#ifndef foosocketutilhfoo
-#define foosocketutilhfoo
+#pragma once

 /***
  This file is part of systemd.
@ -98,5 +97,3 @@ const char* netlink_family_to_string(int b);
 int netlink_family_from_string(const char *s);

 bool socket_ipv6_is_supported(void);
-
-#endif
--- a/src/shared/spawn-ask-password-agent.h
+++ b/src/shared/spawn-ask-password-agent.h
@ -1,7 +1,6 @@
 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/

-#ifndef foospawnaskpasswordagenthfoo
-#define foospawnaskpasswordagenthfoo
+#pragma once

 /***
  This file is part of systemd.
@ -24,5 +23,3 @@

 int ask_password_agent_open(void);
 void ask_password_agent_close(void);
-
-#endif
--- a/src/shared/specifier.h
+++ b/src/shared/specifier.h
@ -1,7 +1,6 @@
 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/

-#ifndef foospecifierhfoo
-#define foospecifierhfoo
+#pragma once

 /***
  This file is part of systemd.
@ -33,5 +32,3 @@ typedef struct Specifier {
 char *specifier_printf(const char *text, const Specifier table[], void *userdata);

 char* specifier_string(char specifier, void *data, void *userdata);
-
-#endif
--- a/src/shared/strv.h
+++ b/src/shared/strv.h
@ -1,7 +1,6 @@
 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/

-#ifndef foostrvhfoo
-#define foostrvhfoo
+#pragma once

 /***
  This file is part of systemd.
@ -80,5 +79,3 @@ bool strv_overlap(char **a, char **b);

 #define STRV_FOREACH_BACKWARDS(s, l)            \
        for (; (l) && ((s) >= (l)); (s)--)
-
-#endif
--- a/src/shared/unit-name.h
+++ b/src/shared/unit-name.h
@ -1,7 +1,6 @@
 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/

-#ifndef foounitnamehfoo
-#define foounitnamehfoo
+#pragma once

 /***
  This file is part of systemd.
@ -92,5 +91,3 @@ char *unit_name_to_path(const char *name);
 char *unit_dbus_path_from_name(const char *name);

 char *unit_name_mangle(const char *name);
-
-#endif
--- a/src/shared/utf8.h
+++ b/src/shared/utf8.h
@ -1,7 +1,6 @@
 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/

-#ifndef fooutf8hfoo
-#define fooutf8hfoo
+#pragma once

 /***
  This file is part of systemd.
@ -31,5 +30,3 @@ char *utf8_is_printable_n(const char* str, size_t length) _pure_;

 char *utf8_filter(const char *s);
 char *ascii_filter(const char *s);
-
-#endif
--- a/src/shared/util.h
+++ b/src/shared/util.h
@ -1,7 +1,6 @@
 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/

-#ifndef fooutilhfoo
-#define fooutilhfoo
+#pragma once

 /***
  This file is part of systemd.
@ -531,5 +530,3 @@ void warn_melody(void);

 int get_shell(char **ret);
 int get_home_dir(char **ret);
-
-#endif
--- a/src/shared/utmp-wtmp.h
+++ b/src/shared/utmp-wtmp.h
@ -1,7 +1,6 @@
 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/

-#ifndef fooutmpwtmphfoo
-#define fooutmpwtmphfoo
+#pragma once

 /***
  This file is part of systemd.
@ -34,5 +33,3 @@ int utmp_put_dead_process(const char *id, pid_t pid, int code, int status);
 int utmp_put_init_process(const char *id, pid_t pid, pid_t sid, const char *line);

 int utmp_wall(const char *message, bool (*match_tty)(const char *tty));
-
-#endif
--- a/src/shared/virt.h
+++ b/src/shared/virt.h
@ -1,7 +1,6 @@
 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/

-#ifndef foovirthfoo
-#define foovirthfoo
+#pragma once

 /***
  This file is part of systemd.
@ -34,5 +33,3 @@ typedef enum Virtualization {
 } Virtualization;

 Virtualization detect_virtualization(const char **id);
-
-#endif
--- a/src/shared/watchdog.h
+++ b/src/shared/watchdog.h
@ -1,7 +1,6 @@
 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/

-#ifndef foowatchdoghfoo
-#define foowatchdoghfoo
+#pragma once

 /***
  This file is part of systemd.
@ -27,5 +26,3 @@
 int watchdog_set_timeout(usec_t *usec);
 int watchdog_ping(void);
 void watchdog_close(bool disarm);
-
-#endif