diff --git a/newlib/ChangeLog b/newlib/ChangeLog
index 369654126..31ea045d9 100644
--- a/newlib/ChangeLog
+++ b/newlib/ChangeLog
@@ -1,3 +1,8 @@
+2011-07-19  Yaakov Selkowitz  <yselkowitz@users.sourceforge.net>
+
+	* libc/include/sys/unistd.h (_CS_XBS5_WIDTH_RESTRICTED_ENVS): Define.
+	(_CS_V6_ENV): Fix definition.
+
 2011-07-19  Ralf Corsépius <ralf.corsepius@rtems.org>
 
 	* libc/locale/lmessages.c (_C_messages_locale):
diff --git a/newlib/libc/include/sys/unistd.h b/newlib/libc/include/sys/unistd.h
index f5c97f87a..2763a0d46 100644
--- a/newlib/libc/include/sys/unistd.h
+++ b/newlib/libc/include/sys/unistd.h
@@ -487,10 +487,11 @@ int	_EXFUN(unlinkat, (int, const char *, int));
 #define _CS_XBS5_LPBIG_OFFBIG_LINTFLAGS       16
 #define _CS_POSIX_V7_WIDTH_RESTRICTED_ENVS    17
 #define _CS_POSIX_V6_WIDTH_RESTRICTED_ENVS    _CS_POSIX_V7_WIDTH_RESTRICTED_ENVS
+#define _CS_XBS5_WIDTH_RESTRICTED_ENVS        _CS_POSIX_V7_WIDTH_RESTRICTED_ENVS
 #define _CS_POSIX_V7_THREADS_CFLAGS           18
 #define _CS_POSIX_V7_THREADS_LDFLAGS          19
 #define _CS_V7_ENV                            20
-#define _CS_V6_ENV                           _CS_V6_ENV
+#define _CS_V6_ENV                            _CS_V7_ENV
 #endif
 
 #ifndef __CYGWIN__