diff --git a/cpukit/ChangeLog b/cpukit/ChangeLog
index a3158b0dfc..47e5268fd2 100644
--- a/cpukit/ChangeLog
+++ b/cpukit/ChangeLog
@@ -1,3 +1,7 @@
+2008-08-20	Ralf Corsépius <ralf.corsepius@rtems.org>
+
+	* configure.ac: Abort if stdbool.h is not c99 compliant.
+
 2008-08-20	Ralf Corsépius <ralf.corsepius@rtems.org>
 
 	* pppd/pppd.h: Use stdbool.h. Remove local bool.
diff --git a/cpukit/configure.ac b/cpukit/configure.ac
index cea851460e..9d5ae71c14 100644
--- a/cpukit/configure.ac
+++ b/cpukit/configure.ac
@@ -70,6 +70,8 @@ AS_IF([test x"${ac_cv_header_inttypes_h}" != xyes],
 [AC_MSG_ERROR([Required header inttypes.h not found])])
 
 AC_HEADER_STDBOOL
+AS_IF([test x"${ac_cv_header_stdbool_h}" != xyes],
+[AC_MSG_ERROR([No sufficient stdbool.h found])])
 
 AC_CHECK_TYPES([ uint8_t,  int8_t])
 AC_CHECK_TYPES([uint16_t, int16_t])