diff --git a/src/message.c b/src/message.c
index 03c7072..576d922 100644
--- a/src/message.c
+++ b/src/message.c
@@ -55,6 +55,9 @@
 static FILE *verbose_fd = NULL;
 static int  verbose_did_open = FALSE;
 
+static int  did_warn_clipboard = FALSE;
+static char *warn_clipboard = "W23: Clipboard register not available, using register 0";
+
 /*
  * When writing messages to the screen, there are many different situations.
  * A number of variables is used to remember the current state:
@@ -4060,6 +4063,19 @@
 	    msg_putchar(' ');
 }
 
+/*
+ * Warn about missing Clipboard Support
+ */
+    void
+msg_warn_missing_clipboard(void)
+{
+    if (!global_busy && !did_warn_clipboard)
+    {
+       msg(_(warn_clipboard));
+       did_warn_clipboard = TRUE;
+    }
+}
+
 #if defined(FEAT_CON_DIALOG) || defined(PROTO)
 /*
  * Used for "confirm()" function, and the :confirm command prefix.