diff --git a/winsup/cygwin/ChangeLog b/winsup/cygwin/ChangeLog
index c0bf1ff37..58ba9561f 100644
--- a/winsup/cygwin/ChangeLog
+++ b/winsup/cygwin/ChangeLog
@@ -1,3 +1,10 @@
+2005-02-08  Corinna Vinschen  <corinna@vinschen.de>
+
+	* times.cc (timeval_to_filetime): Define first parameter const.
+	(utimes): Define second parameter to const according to SUSv3.
+	(utime): Ditto.
+	* include/sys/utime.h (utime) : Change declaration accordingly.
+
 2005-02-08  Corinna Vinschen  <corinna@vinschen.de>
 
 	* cygthread.cc (cygthread::detach): Just test thread handle after
diff --git a/winsup/cygwin/include/sys/utime.h b/winsup/cygwin/include/sys/utime.h
index 5565b361d..cdd04ea7a 100644
--- a/winsup/cygwin/include/sys/utime.h
+++ b/winsup/cygwin/include/sys/utime.h
@@ -21,7 +21,7 @@ struct utimbuf
   time_t modtime; 
 };
 
-int _EXFUN(utime, (const char *__path, struct utimbuf *__buf));
+int _EXFUN(utime, (const char *__path, const struct utimbuf *__buf));
 
 #ifdef __cplusplus
 };
diff --git a/winsup/cygwin/times.cc b/winsup/cygwin/times.cc
index 4cdb4b26c..7ed9e5ec2 100644
--- a/winsup/cygwin/times.cc
+++ b/winsup/cygwin/times.cc
@@ -30,7 +30,7 @@ details. */
 #define FACTOR (0x19db1ded53e8000LL)
 #define NSPERSEC 10000000LL
 
-static void __stdcall timeval_to_filetime (timeval *time, FILETIME *out);
+static void __stdcall timeval_to_filetime (const struct timeval *time, FILETIME *out);
 
 /* Cygwin internal */
 static unsigned long long __stdcall
@@ -185,7 +185,7 @@ time_t_to_filetime (time_t time_in, FILETIME *out)
 
 /* Cygwin internal */
 static void __stdcall
-timeval_to_filetime (timeval *time_in, FILETIME *out)
+timeval_to_filetime (const struct timeval *time_in, FILETIME *out)
 {
   long long x = time_in->tv_sec * NSPERSEC +
 			time_in->tv_usec * (NSPERSEC/1000000) + FACTOR;
@@ -446,7 +446,7 @@ gmtime (const time_t *tim_p)
 
 /* utimes: standards? */
 extern "C" int
-utimes (const char *path, struct timeval *tvp)
+utimes (const char *path, const struct timeval *tvp)
 {
   int res = 0;
   struct timeval tmp[2];
@@ -528,7 +528,7 @@ utimes (const char *path, struct timeval *tvp)
 
 /* utime: POSIX 5.6.6.1 */
 extern "C" int
-utime (const char *path, struct utimbuf *buf)
+utime (const char *path, const struct utimbuf *buf)
 {
   struct timeval tmp[2];