diff --git a/libs/sofia-sip/.update b/libs/sofia-sip/.update
index c255c77370..d46948d9ca 100644
--- a/libs/sofia-sip/.update
+++ b/libs/sofia-sip/.update
@@ -1 +1 @@
-Tue Aug 12 13:04:10 EDT 2008
+Tue Aug 12 13:04:33 EDT 2008
diff --git a/libs/sofia-sip/libsofia-sip-ua/su/su_time0.c b/libs/sofia-sip/libsofia-sip-ua/su/su_time0.c
index 5e504e33be..466bb7a4ab 100644
--- a/libs/sofia-sip/libsofia-sip-ua/su/su_time0.c
+++ b/libs/sofia-sip/libsofia-sip-ua/su/su_time0.c
@@ -179,7 +179,7 @@ su_nanotime_t su_nanotime(su_nanotime_t *return_time)
  */
 su_nanotime_t su_monotime(su_nanotime_t *return_time)
 {
-#if HAVE_CLOCK_GETTIME
+#if HAVE_CLOCK_GETTIME && CLOCK_MONOTONIC
   {
     struct timespec tv;
   
diff --git a/libs/sofia-sip/m4/sac-su2.m4 b/libs/sofia-sip/m4/sac-su2.m4
index 8927ca1428..5203293d53 100644
--- a/libs/sofia-sip/m4/sac-su2.m4
+++ b/libs/sofia-sip/m4/sac-su2.m4
@@ -442,6 +442,10 @@ AC_ARG_WITH(rt,
 if test "${with_rt}" != no; then
 	AC_SEARCH_LIBS(clock_gettime, rt)
         AC_CHECK_FUNCS([clock_gettime clock_getcpuclockid])
+        AC_CHECK_DECL([CLOCK_MONOTONIC],
+AC_DEFINE([HAVE_CLOCK_MONOTONIC], 1,
+[Define to 1 if you have CLOCK_MONOTONIC]),,[
+#include <time.h>])
 fi
 
 # No GLib path explicitly defined, use pkg-config