--- a/pr/src/md/unix/darwin.c
+++ b/pr/src/md/unix/darwin.c
@@ -73,28 +73,28 @@ PRStatus
 _MD_WAKEUP_WAITER(PRThread *thread)
 {
     if (thread) {
 	PR_ASSERT(!(thread->flags & _PR_GLOBAL_SCOPE));
     }
     return PR_SUCCESS;
 }
 
-/* These functions should not be called for OSF1 */
+/* These functions should not be called for Rhapsody */
 void
 _MD_YIELD(void)
 {
-    PR_NOT_REACHED("_MD_YIELD should not be called for OSF1.");
+    PR_NOT_REACHED("_MD_YIELD should not be called for Rhapsody.");
 }
 
 PRStatus
 _MD_CREATE_THREAD(
     PRThread *thread,
     void (*start) (void *),
     PRThreadPriority priority,
     PRThreadScope scope,
     PRThreadState state,
     PRUint32 stackSize)
 {
-    PR_NOT_REACHED("_MD_CREATE_THREAD should not be called for OSF1.");
+    PR_NOT_REACHED("_MD_CREATE_THREAD should not be called for Rhapsody.");
 	return PR_FAILURE;
 }
 #endif /* ! _PR_PTHREADS */

--- a/pr/src/md/unix/rhapsody.c
+++ b/pr/src/md/unix/rhapsody.c
@@ -73,28 +73,28 @@ PRStatus
 _MD_WAKEUP_WAITER(PRThread *thread)
 {
     if (thread) {
 	PR_ASSERT(!(thread->flags & _PR_GLOBAL_SCOPE));
     }
     return PR_SUCCESS;
 }
 
-/* These functions should not be called for OSF1 */
+/* These functions should not be called for Rhapsody */
 void
 _MD_YIELD(void)
 {
-    PR_NOT_REACHED("_MD_YIELD should not be called for OSF1.");
+    PR_NOT_REACHED("_MD_YIELD should not be called for Rhapsody.");
 }
 
 PRStatus
 _MD_CREATE_THREAD(
     PRThread *thread,
     void (*start) (void *),
     PRThreadPriority priority,
     PRThreadScope scope,
     PRThreadState state,
     PRUint32 stackSize)
 {
-    PR_NOT_REACHED("_MD_CREATE_THREAD should not be called for OSF1.");
+    PR_NOT_REACHED("_MD_CREATE_THREAD should not be called for Rhapsody.");
 	return PR_FAILURE;
 }
 #endif /* ! _PR_PTHREADS */