diff --git a/winsup/cygwin/ChangeLog b/winsup/cygwin/ChangeLog
index 5dd1d1303..ad74f7ea0 100644
--- a/winsup/cygwin/ChangeLog
+++ b/winsup/cygwin/ChangeLog
@@ -1,3 +1,7 @@
+2012-10-22  Corinna Vinschen  <corinna@vinschen.de>
+
+	* winbase.h: Remove.
+
 2012-10-22  Corinna Vinschen  <corinna@vinschen.de>
 
 	* child_info.h (CURR_CHILD_INFO_MAGIC): Update.
diff --git a/winsup/cygwin/winbase.h b/winsup/cygwin/winbase.h
deleted file mode 100644
index 95fac3045..000000000
--- a/winsup/cygwin/winbase.h
+++ /dev/null
@@ -1,98 +0,0 @@
-/* winbase.h
-
-   Copyright 2002, 2003, 2004, 2008, 2009, 2012 Red Hat, Inc.
-
-This software is a copyrighted work licensed under the terms of the
-Cygwin license.  Please consult the file "CYGWIN_LICENSE" for
-details. */
-
-#include_next "winbase.h"
-
-#ifndef _WINBASE2_H
-#define _WINBASE2_H
-
-/* For some unknown reason, InterlockedAdd is only supported on Itanium
-   when using the Windows headers.  Fortunately we're not restricted to the
-   Windows headers :) */
-extern __inline__ LONG
-ilockadd (volatile LONG *m, LONG value)
-{
-  register LONG __res;
-  __asm__ __volatile__ ("\n\
-	movl	%3,%0\n\
-	lock	xadd %0,%1\n\
-	addl	%3,%0\n\
-	": "=&r" (__res), "=m" (*m): "m" (*m), "r" (value): "cc");
-  return __res;
-}
-
-extern __inline__ LONG
-ilockincr (volatile LONG *m)
-{
-  register LONG __res;
-  __asm__ __volatile__ ("\n\
-	movl	$1,%0\n\
-	lock	xadd %0,%1\n\
-	inc	%0\n\
-	": "=&r" (__res), "=m" (*m): "m" (*m): "cc");
-  return __res;
-}
-
-extern __inline__ LONG
-ilockdecr (volatile LONG *m)
-{
-  register LONG __res;
-  __asm__ __volatile__ ("\n\
-	movl	$0xffffffff,%0\n\
-	lock	xadd %0,%1\n\
-	dec	%0\n\
-	": "=&r" (__res), "=m" (*m): "m" (*m): "cc");
-  return __res;
-}
-
-extern __inline__ LONG
-ilockexch (volatile LONG *t, long v)
-{
-  return
-  ({
-    register LONG ret __asm ("%eax");
-    __asm __volatile ("\n"
-	"1:	lock cmpxchgl %2, %1\n"
-	"	jne  1b\n"
-	: "=a" (ret), "=m" (*t)
-	: "r" (v), "m" (*t), "0" (*t)
-	: "memory");
-    ret;
-  });
-}
-
-extern __inline__ LONG
-ilockcmpexch (volatile LONG *t, LONG v, LONG c)
-{
-  return
-  ({
-    register LONG ret __asm ("%eax");
-    __asm __volatile ("lock cmpxchgl %2, %1"
-	: "=a" (ret), "=m" (*t)
-	: "r" (v), "m" (*t), "0" (c)
-	: "memory");
-    ret;
-  });
-}
-
-#undef InterlockedAdd
-#define InterlockedAdd ilockadd
-#undef InterlockedIncrement
-#define InterlockedIncrement ilockincr
-#undef InterlockedDecrement
-#define InterlockedDecrement ilockdecr
-#undef InterlockedExchange
-#define InterlockedExchange ilockexch
-#undef InterlockedCompareExchange
-#define InterlockedCompareExchange ilockcmpexch
-#undef InterlockedCompareExchangePointer
-#ifndef __x86_64
-#define InterlockedCompareExchangePointer(d,e,c) \
-    (PVOID)InterlockedCompareExchange((LONG volatile *)(d),(LONG)(e),(LONG)(c))
-#endif /* !__x86_64 */
-#endif /*_WINBASE2_H*/