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diff --git a/ChangeLog b/ChangeLog
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+++ b/ChangeLog
@@ -1,3 +1,21 @@
+2012-10-04  Paul Eggert  <eggert@cs.ucla.edu>
+
+        Port timers to OpenBSD, plus check for timer failures.
+        OpenBSD problem reported by Han Boetes.
+        * profiler.c (setup_cpu_timer): Check for failure of timer_settime
+        and/or setitimer.
+        (Fprofiler_cpu_stop): Don't assume HAVE_SETITIMER.
+        * syssignal.h (HAVE_ITIMERSPEC): New macro.  This is for platforms
+        like OpenBSD, which has timer_settime but does not declare it.
+        OpenBSD does not define SIGEV_SIGNAL, so use that when deciding
+        whether to use itimerspec-related primitives.  All uses of
+        HAVE_TIMER_SETTIME replaced with HAVE_ITIMERSPEC.
+
+2012-09-30  Paul Eggert  <eggert@cs.ucla.edu>
+
+        Merge from gnulib, incorporating:
+        2012-09-28 extern-inline: provide a -Wundef safe config.h
+
 2012-09-27  Paul Eggert  <eggert@cs.ucla.edu>
 
         Check more robustly for timer_settime.