diff --git a/src/shrpx.cc b/src/shrpx.cc
index d32af75f..9610807c 100644
--- a/src/shrpx.cc
+++ b/src/shrpx.cc
@@ -647,13 +647,23 @@ void renew_ticket_key_cb(struct ev_loop *loop, ev_timer *w, int revents) {
 }
 } // namespace
 
+namespace {
+int call_daemon() {
+#ifdef __sgi
+  return _daemonize(0, 0, 0, 0);
+#else  // !__sgi
+  return daemon(0, 0);
+#endif // !__sgi
+}
+} // namespace
+
 namespace {
 int event_loop() {
   auto loop = EV_DEFAULT;
 
   auto conn_handler = make_unique<ConnectionHandler>(loop);
   if (get_config()->daemon) {
-    if (daemon(0, 0) == -1) {
+    if (call_daemon() == -1) {
       auto error = errno;
       LOG(FATAL) << "Failed to daemonize: " << strerror(error);
       exit(EXIT_FAILURE);
diff --git a/src/shrpx_config.cc b/src/shrpx_config.cc
index b9fb36dd..7de46e58 100644
--- a/src/shrpx_config.cc
+++ b/src/shrpx_config.cc
@@ -1181,14 +1181,18 @@ const char *str_syslog_facility(int facility) {
   switch (facility) {
   case (LOG_AUTH):
     return "auth";
+#ifdef LOG_AUTHPRIV
   case (LOG_AUTHPRIV):
     return "authpriv";
+#endif // LOG_AUTHPRIV
   case (LOG_CRON):
     return "cron";
   case (LOG_DAEMON):
     return "daemon";
+#ifdef LOG_FTP
   case (LOG_FTP):
     return "ftp";
+#endif // LOG_FTP
   case (LOG_KERN):
     return "kern";
   case (LOG_LOCAL0):
@@ -1227,9 +1231,11 @@ int int_syslog_facility(const char *strfacility) {
     return LOG_AUTH;
   }
 
+#ifdef LOG_AUTHPRIV
   if (util::strieq(strfacility, "authpriv")) {
     return LOG_AUTHPRIV;
   }
+#endif // LOG_AUTHPRIV
 
   if (util::strieq(strfacility, "cron")) {
     return LOG_CRON;
@@ -1239,9 +1245,11 @@ int int_syslog_facility(const char *strfacility) {
     return LOG_DAEMON;
   }
 
+#ifdef LOG_FTP
   if (util::strieq(strfacility, "ftp")) {
     return LOG_FTP;
   }
+#endif // LOG_FTP
 
   if (util::strieq(strfacility, "kern")) {
     return LOG_KERN;