https://gitlab.freedesktop.org/dbus/dbus/-/merge_requests/53
https://bugs.gentoo.org/599494
--- a/configure.ac
+++ b/configure.ac
@@ -215,6 +215,7 @@ AC_ARG_ENABLE(inotify, AS_HELP_STRING([--enable-inotify],[build with inotify sup
 AC_ARG_ENABLE(kqueue, AS_HELP_STRING([--enable-kqueue],[build with kqueue support]),enable_kqueue=$enableval,enable_kqueue=auto)
 AC_ARG_ENABLE(console-owner-file, AS_HELP_STRING([--enable-console-owner-file],[enable console owner file]),enable_console_owner_file=$enableval,enable_console_owner_file=auto)
 AC_ARG_ENABLE(launchd, AS_HELP_STRING([--enable-launchd],[build with launchd auto-launch support]),enable_launchd=$enableval,enable_launchd=auto)
+AC_ARG_ENABLE(elogind, AS_HELP_STRING([--enable-elogind],[build with elogind user seat support]),enable_elogind=$enableval,enable_elogind=auto)
 AC_ARG_ENABLE(systemd, AS_HELP_STRING([--enable-systemd],[build with systemd at_console support]),enable_systemd=$enableval,enable_systemd=auto)
 AC_ARG_ENABLE(traditional-activation, AS_HELP_STRING([--disable-traditional-activation], [Do not build support for service activation without using SystemdService]), enable_traditional_activation="$enableval", enable_traditional_activation=yes)
 
@@ -904,6 +905,24 @@ fi
 
 AM_CONDITIONAL(HAVE_CONSOLE_OWNER_FILE, test x$have_console_owner_file = xyes)
 
+dnl elogind detection
+if test x$enable_elogind = xno ; then
+    have_elogind=no;
+else
+    PKG_CHECK_MODULES([ELOGIND],
+        [libelogind >= 209],
+        [have_elogind=yes],
+        [have_elogind=no])
+fi
+
+if test x$have_elogind = xyes; then
+    AC_DEFINE(HAVE_ELOGIND,1,[Have elogind])
+fi
+
+if test x$enable_elogind = xyes -a x$have_elogind != xyes ; then
+    AC_MSG_ERROR([Explicitly requested elogind support, but libelogind not found])
+fi
+
 dnl systemd detection
 if test x$enable_systemd = xno ; then
     have_systemd=no;
@@ -1024,7 +1043,7 @@ if test x$with_valgrind != xno; then
 fi
 
 #### Set up final flags
-LIBDBUS_LIBS="$THREAD_LIBS $NETWORK_libs $SYSTEMD_LIBS"
+LIBDBUS_LIBS="$THREAD_LIBS $NETWORK_libs $SYSTEMD_LIBS $ELOGIND_LIBS"
 AC_SUBST([LIBDBUS_LIBS])
 
 ### X11 detection
@@ -1731,6 +1750,7 @@ echo "
         Building AppArmor support: ${have_apparmor}
         Building inotify support: ${have_inotify}
         Building kqueue support:  ${have_kqueue}
+        Building elogind support: ${have_elogind}
         Building systemd support: ${have_systemd}
         Traditional activation:   ${enable_traditional_activation}
         Building X11 code:        ${have_x11}
--- a/dbus/dbus-userdb-util.c
+++ b/dbus/dbus-userdb-util.c
@@ -39,6 +39,9 @@
 #ifdef HAVE_SYSTEMD
 #include <systemd/sd-login.h>
 #endif
+#if HAVE_ELOGIND
+#include <elogind/sd-login.h>
+#endif
 
 /**
  * @addtogroup DBusInternalsUtils
@@ -65,7 +68,7 @@ dbus_bool_t
 _dbus_is_console_user (dbus_uid_t uid,
 		       DBusError *error)
 {
-#ifdef HAVE_SYSTEMD
+#if defined(HAVE_SYSTEMD) || defined(HAVE_ELOGIND)
   /* check if we have logind */
   if (access ("/run/systemd/seats/", F_OK) >= 0)
     {