diff --git a/cpukit/ChangeLog b/cpukit/ChangeLog
index d847bdc9ac..4d9afe3f03 100644
--- a/cpukit/ChangeLog
+++ b/cpukit/ChangeLog
@@ -1,3 +1,9 @@
+2010-09-08	Ralf Corsépius <ralf.corsepius@rtems.org>
+
+	* configure.ac: Add checks for pthread_attr_getguardsize,
+	pthread_attr_setguardsize, pthread_attr_setstack,
+	pthread_attr_getstack.
+
 2010-09-08	Sebastian Huber <sebastian.huber@embedded-brains.de>
 
 	PR 1698/cpukit
diff --git a/cpukit/configure.ac b/cpukit/configure.ac
index c5a220aed7..d42e8fd1f3 100644
--- a/cpukit/configure.ac
+++ b/cpukit/configure.ac
@@ -78,6 +78,12 @@ RTEMS_CHECK_FUNC([getpgid],[#include <unistd.h>])
 RTEMS_CHECK_FUNC([setpgrp],[#include <unistd.h>])
 RTEMS_CHECK_FUNC([getpgrp],[#include <unistd.h>])
 
+# pthread-functions not declared in some versions of newlib.
+RTEMS_CHECK_FUNC([pthread_attr_getguardsize],[#include <pthreads.h>])
+RTEMS_CHECK_FUNC([pthread_attr_setguardsize],[#include <pthreads.h>])
+RTEMS_CHECK_FUNC([pthread_attr_setstack],[#include <pthreads.h>])
+RTEMS_CHECK_FUNC([pthread_attr_getstack],[#include <pthreads.h>])
+
 # Newlib's unix/ directory
 AC_CHECK_FUNCS([ttyname getcwd])
 # </FIXME>