--- rxvt-unicode/configure	2008/11/08 16:49:46	1.128
+++ rxvt-unicode/configure	2009/09/04 15:40:12	1.129
@@ -5326,7 +5326,8 @@
 
 
 
-for ac_header in sys/inotify.h sys/epoll.h sys/event.h sys/queue.h port.h poll.h sys/select.h sys/eventfd.h
+
+for ac_header in sys/inotify.h sys/epoll.h sys/event.h sys/queue.h port.h poll.h sys/select.h sys/eventfd.h sys/signalfd.h
 do
 as_ac_Header=`echo "ac_cv_header_$ac_header" | $as_tr_sh`
 if { as_var=$as_ac_Header; eval "test \"\${$as_var+set}\" = set"; }; then
@@ -5473,7 +5474,8 @@
 
 
 
-for ac_func in inotify_init epoll_ctl kqueue port_create poll select eventfd
+
+for ac_func in inotify_init epoll_ctl kqueue port_create poll select eventfd signalfd
 do
 as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh`
 { echo "$as_me:$LINENO: checking for $ac_func" >&5
@@ -5652,7 +5654,63 @@
   :
 else
 
-   if test -z "$LIBEV_M4_AVOID_LIBRT"; then
+      if test $(uname) = Linux; then
+      { echo "$as_me:$LINENO: checking for clock_gettime syscall" >&5
+echo $ECHO_N "checking for clock_gettime syscall... $ECHO_C" >&6; }
+      cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+#include <syscall.h>
+                       #include <time.h>
+int
+main ()
+{
+struct timespec ts; int status = syscall (SYS_clock_gettime, CLOCK_REALTIME, &ts)
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (ac_try="$ac_link"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_link") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_cxx_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest$ac_exeext &&
+       $as_test_x conftest$ac_exeext; then
+  ac_have_clock_syscall=1
+
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_CLOCK_SYSCALL 1
+_ACEOF
+
+                      { echo "$as_me:$LINENO: result: yes" >&5
+echo "${ECHO_T}yes" >&6; }
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	{ echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6; }
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
+      conftest$ac_exeext conftest.$ac_ext
+   fi
+   if test -z "$LIBEV_M4_AVOID_LIBRT" && test -z "$ac_have_clock_syscall"; then
 
 { echo "$as_me:$LINENO: checking for clock_gettime in -lrt" >&5
 echo $ECHO_N "checking for clock_gettime in -lrt... $ECHO_C" >&6; }
@@ -6154,8 +6212,6 @@
 
 
 
-
-
 
 
 # Extract the first word of "tic", so it can be a program name with args.