diff --git a/winsup/cygwin/ChangeLog b/winsup/cygwin/ChangeLog
index 47bf78aa8..fe69eea93 100644
--- a/winsup/cygwin/ChangeLog
+++ b/winsup/cygwin/ChangeLog
@@ -1,3 +1,7 @@
+2008-12-30  Christopher Faylor  <me+cygwin@cgf.cx>
+
+	* include/bits/wordsize.h: New linux-compatibility header.
+
 2008-12-30  Christopher Faylor  <me+cygwin@cgf.cx>
 
 	* exceptions.cc (try_to_debug): Avoid creating a huge buffer on the
diff --git a/winsup/cygwin/include/bits/wordsize.h b/winsup/cygwin/include/bits/wordsize.h
new file mode 100644
index 000000000..38e14f85f
--- /dev/null
+++ b/winsup/cygwin/include/bits/wordsize.h
@@ -0,0 +1,6 @@
+/* wordsize.h - Linux compatibility */
+
+#ifndef _WORDSIZE_H
+#define _WORDSIZE_H 1
+#define __WORDSIZE      32
+#endif /*_WORDSIZE_H*/