diff -Paur --no-dereference -- libdbus.upstream/bus/activation-helper.c libdbus/bus/activation-helper.c
--- libdbus.upstream/bus/activation-helper.c
+++ libdbus/bus/activation-helper.c
@@ -43,6 +43,10 @@
 #include <dbus/dbus-shell.h>
 #include <dbus/dbus-marshal-validate.h>
 
+#if defined(__sortix__)
+#define initgroups(a, b) 0
+#endif
+
 static BusDesktopFile *
 desktop_file_for_name (BusConfigParser *parser,
                        const char *name,
diff -Paur --no-dereference -- libdbus.upstream/bus/Makefile.in libdbus/bus/Makefile.in
--- libdbus.upstream/bus/Makefile.in
+++ libdbus/bus/Makefile.in
@@ -1510,7 +1510,6 @@
 	/bin/rm *.bb *.bbg *.da *.gcov || true
 
 install-data-hook:
-	$(mkinstalldirs) $(DESTDIR)$(localstatedir)/run/dbus
 	$(mkinstalldirs) $(DESTDIR)$(configdir)/system.d
 	$(mkinstalldirs) $(DESTDIR)$(configdir)/session.d
 	$(mkinstalldirs) $(DESTDIR)$(datadir)/dbus-1/services
diff -Paur --no-dereference -- libdbus.upstream/config.sub libdbus/config.sub
--- libdbus.upstream/config.sub
+++ libdbus/config.sub
@@ -1342,7 +1342,7 @@
 	      | -hpux* | -unos* | -osf* | -luna* | -dgux* | -auroraux* | -solaris* \
 	      | -sym* | -kopensolaris* \
 	      | -amigaos* | -amigados* | -msdos* | -newsos* | -unicos* | -aof* \
-	      | -aos* | -aros* \
+	      | -aos* | -aros* | -sortix* \
 	      | -nindy* | -vxsim* | -vxworks* | -ebmon* | -hms* | -mvs* \
 	      | -clix* | -riscos* | -uniplus* | -iris* | -rtu* | -xenix* \
 	      | -hiux* | -386bsd* | -knetbsd* | -mirbsd* | -netbsd* \
diff -Paur --no-dereference -- libdbus.upstream/dbus/dbus-sysdeps.h libdbus/dbus/dbus-sysdeps.h
--- libdbus.upstream/dbus/dbus-sysdeps.h
+++ libdbus/dbus/dbus-sysdeps.h
@@ -50,7 +50,7 @@
  * DBusPollFD
  */ 
 #ifdef HAVE_POLL
-#include <sys/poll.h>
+#include <poll.h>
 #endif
 
 #ifdef DBUS_WINCE
diff -Paur --no-dereference -- libdbus.upstream/dbus/dbus-sysdeps-unix.c libdbus/dbus/dbus-sysdeps-unix.c
--- libdbus.upstream/dbus/dbus-sysdeps-unix.c
+++ libdbus/dbus/dbus-sysdeps-unix.c
@@ -63,7 +63,7 @@
 #include <sys/uio.h>
 #endif
 #ifdef HAVE_POLL
-#include <sys/poll.h>
+#include <poll.h>
 #endif
 #ifdef HAVE_BACKTRACE
 #include <execinfo.h>
@@ -76,6 +76,8 @@
 #include <bsm/adt.h>
 #endif
 
+#include <alloca.h>
+
 #include "sd-daemon.h"
 
 #ifndef O_BINARY
@@ -276,6 +278,11 @@
   *n_fds = 0;
   return r;
 
+#elif defined(__sortix__)
+
+  fprintf(stderr, "%s:%u Warning: Sortix cannot pass fds between processes yet\n", __FILE__, __LINE__);
+  return errno = ENOTSUP, -1;
+
 #else
   int bytes_read;
   int start;
@@ -426,6 +433,12 @@
   return _dbus_write_socket_two(fd,
                                 buffer1, start1, len1,
                                 buffer2, start2, len2);
+
+#elif defined(__sortix__)
+
+  fprintf(stderr, "%s:%u Warning: Sortix cannot pass fds between processes yet\n", __FILE__, __LINE__);
+  return errno = ENOTSUP, -1;
+
 #else
 
   struct msghdr m;
@@ -734,6 +747,7 @@
 #else /* HAVE_WRITEV */
   {
     int ret1;
+    int ret2;
 
     ret1 = _dbus_write (fd, buffer1, start1, len1);
     if (ret1 == len1 && buffer2 != NULL)
diff -Paur --no-dereference -- libdbus.upstream/dbus/dbus-sysdeps-util-unix.c libdbus/dbus/dbus-sysdeps-util-unix.c
--- libdbus.upstream/dbus/dbus-sysdeps-util-unix.c
+++ libdbus/dbus/dbus-sysdeps-util-unix.c
@@ -59,6 +59,11 @@
 #define O_BINARY 0
 #endif
 
+#if defined(__sortix__)
+#define setsid() getpid()
+#define setgroups(a, b) 0
+#endif
+
 /**
  * @addtogroup DBusInternalsUtils
  * @{
diff -Paur --no-dereference -- libdbus.upstream/dbus/sd-daemon.c libdbus/dbus/sd-daemon.c
--- libdbus.upstream/dbus/sd-daemon.c
+++ libdbus/dbus/sd-daemon.c
@@ -32,7 +32,7 @@
 #include <sys/stat.h>
 #include <sys/socket.h>
 #include <sys/un.h>
-#include <sys/fcntl.h>
+#include <fcntl.h>
 #include <netinet/in.h>
 #include <stdlib.h>
 #include <errno.h>
diff -Paur --no-dereference -- libdbus.upstream/tools/dbus-launch.c libdbus/tools/dbus-launch.c
--- libdbus.upstream/tools/dbus-launch.c
+++ libdbus/tools/dbus-launch.c
@@ -769,7 +769,7 @@
 
      strcpy (envvar, "DBUS_SESSION_BUS_ADDRESS=");
      strcat (envvar, bus_address);
-     putenv (envvar);
+     setenv ("DBUS_SESSION_BUS_ADDRESS", bus_address, 1);
 
      execvp (runprog, args);
      fprintf (stderr, "Couldn't exec %s: %s\n", runprog, strerror (errno));
diff -Paur --no-dereference -- libdbus.upstream/tools/dbus-monitor.c libdbus/tools/dbus-monitor.c
--- libdbus.upstream/tools/dbus-monitor.c
+++ libdbus/tools/dbus-monitor.c
@@ -104,11 +104,7 @@
   return DBUS_HANDLER_RESULT_HANDLED;
 }
 
-#ifdef __APPLE__
-#define PROFILE_TIMED_FORMAT "%s\t%lu\t%d"
-#else
-#define PROFILE_TIMED_FORMAT "%s\t%lu\t%lu"
-#endif
+#define PROFILE_TIMED_FORMAT "%s\t%lld\t%lu"
 #define TRAP_NULL_STRING(str) ((str) ? (str) : "<none>")
 
 typedef enum
@@ -127,7 +123,7 @@
 profile_print_with_attrs (const char *type, DBusMessage *message,
   struct timeval *t, ProfileAttributeFlags attrs)
 {
-  printf (PROFILE_TIMED_FORMAT, type, t->tv_sec, t->tv_usec);
+  printf (PROFILE_TIMED_FORMAT, type, (long long)t->tv_sec, t->tv_usec);
 
   if (attrs & PROFILE_ATTRIBUTE_FLAG_SERIAL)
     printf ("\t%u", dbus_message_get_serial (message));
@@ -197,7 +193,7 @@
 	  PROFILE_ATTRIBUTE_FLAG_MEMBER);
 	break;
       default:
-	printf (PROFILE_TIMED_FORMAT "\n", "tun", t.tv_sec, t.tv_usec);
+	printf (PROFILE_TIMED_FORMAT "\n", "tun", (long long)t.tv_sec, t.tv_usec);
 	break;
     }
 }