diff --git a/winsup/cygwin/ChangeLog b/winsup/cygwin/ChangeLog
index 5c75ec791..4dad20aa8 100644
--- a/winsup/cygwin/ChangeLog
+++ b/winsup/cygwin/ChangeLog
@@ -1,3 +1,8 @@
+2009-03-23  Corinna Vinschen  <corinna@vinschen.de>
+
+	* include/asm/byteorder.h (__constant_ntohs): Remove declaration.
+	(__constant_ntohl): Ditto.
+
 2009-03-23  Corinna Vinschen  <corinna@vinschen.de>
 
 	* cygwin.din: Export wordexp, wordfree.
diff --git a/winsup/cygwin/include/asm/byteorder.h b/winsup/cygwin/include/asm/byteorder.h
index b656f814b..9a274dd2e 100644
--- a/winsup/cygwin/include/asm/byteorder.h
+++ b/winsup/cygwin/include/asm/byteorder.h
@@ -32,8 +32,6 @@ extern uint16_t	htons(uint16_t);
 
 extern __inline__ uint32_t	__ntohl(uint32_t);
 extern __inline__ uint16_t	__ntohs(uint16_t);
-extern __inline__ uint32_t	__constant_ntohl(uint32_t);
-extern __inline__ uint16_t	__constant_ntohs(uint16_t);
 
 extern __inline__ uint32_t
 __ntohl(uint32_t x)