diff --git a/winsup/cygwin/ChangeLog b/winsup/cygwin/ChangeLog
index ddca9e0a8..03e7ccccc 100644
--- a/winsup/cygwin/ChangeLog
+++ b/winsup/cygwin/ChangeLog
@@ -1,3 +1,7 @@
+Wed Feb 23 22:51:27 2000  Christopher Faylor <cgf@cygnus.com>
+
+	Fix final round of gcc warnings relating to unused parameters. 
+
 Wed Feb 23 21:59:44 2000  Christopher Faylor <cgf@cygnus.com>
 
 	* hinfo.cc (hinfo::extend): Clean up debugging output.
diff --git a/winsup/cygwin/localtime.c b/winsup/cygwin/localtime.c
index a22d654e7..47efb16a1 100644
--- a/winsup/cygwin/localtime.c
+++ b/winsup/cygwin/localtime.c
@@ -1560,7 +1560,8 @@ tzset P((void))
 
 /*ARGSUSED*/
 static void
-localsub (const time_t * const	timep, const long offset,
+localsub (const time_t * const	timep,
+	  const long offset __attribute__ ((unused)),
 	  struct tm * const tmp)
 {
 	register struct state *		sp;
diff --git a/winsup/cygwin/regexp/regerror.c b/winsup/cygwin/regexp/regerror.c
index ab6954e08..b07f669bc 100644
--- a/winsup/cygwin/regexp/regerror.c
+++ b/winsup/cygwin/regexp/regerror.c
@@ -8,8 +8,7 @@ static char *rcsid = "$Id$";
 #include <stdio.h>
 
 void
-regerror(s)
-const char *s;
+regerror(const char *s __attribute__ ((unused)))
 {
 #ifdef ERRAVAIL
 	error("regexp: %s", s);
diff --git a/winsup/cygwin/thread.cc b/winsup/cygwin/thread.cc
index 0ed42e7d8..b0d046897 100644
--- a/winsup/cygwin/thread.cc
+++ b/winsup/cygwin/thread.cc
@@ -573,7 +573,7 @@ __pthread_attr_getstacksize (pthread_attr_t * attr, size_t * size)
 };
 
 int
-__pthread_attr_destroy (pthread_attr_t * attr)
+__pthread_attr_destroy (pthread_attr_t * /*attr*/)
 {
   return 0;
 };
@@ -673,23 +673,23 @@ __pthread_getsequence_np (pthread_t * thread)
 
 /* Thread SpecificData */
 int
-__pthread_key_create (pthread_key_t * key)
+__pthread_key_create (pthread_key_t */*key*/)
 {
   NOT_IMP ("_p_key_create\n");
 };
 
 int
-__pthread_key_delete (pthread_key_t * key)
+__pthread_key_delete (pthread_key_t */*key*/)
 {
   NOT_IMP ("_p_key_delete\n");
 };
 int
-__pthread_setspecific (pthread_key_t * key, const void *value)
+__pthread_setspecific (pthread_key_t */*key*/, const void */*value*/)
 {
   NOT_IMP ("_p_key_setsp\n");
 };
 void *
-__pthread_getspecific (pthread_key_t * key)
+__pthread_getspecific (pthread_key_t */*key*/)
 {
   NOT_IMP ("_p_key_getsp\n");
 };
@@ -754,7 +754,7 @@ __pthread_equal (pthread_t * t1, pthread_t * t2)
 /* Mutexes  */
 
 int
-__pthread_mutex_init (pthread_mutex_t * mutex, const pthread_mutexattr_t * _attr)
+__pthread_mutex_init (pthread_mutex_t * mutex, const pthread_mutexattr_t */*_attr*/)
 {
   SetResourceLock (LOCK_MUTEX_LIST, WRITE_LOCK | READ_LOCK, "__pthread_mutex_init");