diff --git a/newlib/ChangeLog b/newlib/ChangeLog
index 5d105ae30..d8642ca76 100644
--- a/newlib/ChangeLog
+++ b/newlib/ChangeLog
@@ -1,3 +1,7 @@
+2011-01-15  Yaakov Selkowitz  <yselkowitz@users.sourceforge.net>
+
+	* libc/include/sys/types.h (ulong): Add typedef.
+
 2011-01-12  Ralf Corsépius  <ralf.corsepius@rtems.org>
 
 	* libm/math/w_tgamma.c: Only build ifndef _DOUBLE_IS_32BITS.
diff --git a/newlib/libc/include/sys/types.h b/newlib/libc/include/sys/types.h
index 70835735d..cf0b8dfc9 100644
--- a/newlib/libc/include/sys/types.h
+++ b/newlib/libc/include/sys/types.h
@@ -98,6 +98,7 @@ typedef	unsigned long	u_long;
 
 typedef	unsigned short	ushort;		/* System V compatibility */
 typedef	unsigned int	uint;		/* System V compatibility */
+typedef	unsigned long	ulong;		/* System V compatibility */
 # endif	/*!_POSIX_SOURCE */
 
 #ifndef __clock_t_defined