diff --git a/winsup/cygwin/ChangeLog b/winsup/cygwin/ChangeLog
index cbdabe714..5291103ec 100644
--- a/winsup/cygwin/ChangeLog
+++ b/winsup/cygwin/ChangeLog
@@ -1,3 +1,10 @@
+2013-04-22  Corinna Vinschen  <corinna@vinschen.de>
+
+	Adapt to changes in newlib's sys/cdefs.h:
+	* include/sys/sysinfo.h (struct sysinfo): Rename __unused member to __f.
+	* libc/fts.c (__FBSDID): Drop definition.
+	* regex/regexec.c (__unused): Drop definition.
+
 2013-04-22  Corinna Vinschen  <corinna@vinschen.de>
 
 	* include/cygwin/version.h (CYGWIN_VERSION_DLL_MINOR): Bump to 19.
diff --git a/winsup/cygwin/include/sys/sysinfo.h b/winsup/cygwin/include/sys/sysinfo.h
index 693e7b593..32fa05bd1 100644
--- a/winsup/cygwin/include/sys/sysinfo.h
+++ b/winsup/cygwin/include/sys/sysinfo.h
@@ -1,6 +1,6 @@
 /* sys/sysinfo.h
 
-   Copyright 2009, 2011 Red Hat, Inc.
+   Copyright 2009, 2011, 2013 Red Hat, Inc.
 
 This file is part of Cygwin.
 
@@ -30,7 +30,7 @@ struct sysinfo {
   unsigned long totalhigh;    /* Total high memory size */
   unsigned long freehigh;     /* Available high memory size */
   unsigned int mem_unit;      /* Memory unit size in bytes */
-  char __unused[10];          /* Pads structure to 64 bytes */
+  char __f[10];               /* Pads structure to 64 bytes */
 };
 
 extern int sysinfo (struct sysinfo *);
diff --git a/winsup/cygwin/libc/fts.c b/winsup/cygwin/libc/fts.c
index 028884389..7f292a57b 100644
--- a/winsup/cygwin/libc/fts.c
+++ b/winsup/cygwin/libc/fts.c
@@ -37,7 +37,6 @@ static char sccsid[] = "@(#)fts.c	8.6 (Berkeley) 8/14/94";
 #ifdef __CYGWIN__
 #include "winsup.h"
 #include <sys/statfs.h>
-#define __FBSDID(x)
 #define _open open
 #define _close close
 #endif
diff --git a/winsup/cygwin/regex/regexec.c b/winsup/cygwin/regex/regexec.c
index ad12ada41..c400578b8 100644
--- a/winsup/cygwin/regex/regexec.c
+++ b/winsup/cygwin/regex/regexec.c
@@ -62,10 +62,6 @@ __FBSDID("$FreeBSD: src/lib/libc/regex/regexec.c,v 1.8 2007/06/11 03:05:54 delph
 #include "utils.h"
 #include "regex2.h"
 
-#ifdef __CYGWIN__
-#define __unused	__attribute__ ((unused))
-#endif
-
 static int nope __unused = 0;	/* for use in asserts; shuts lint up */
 
 static __inline size_t