Added PyMac_OutputSeen(), which acknowledges all current output in the stdio window, i.e. it acts like input has been read insofar as the keep-console-open option is interested.
diff --git a/Mac/Include/macglue.h b/Mac/Include/macglue.h
index 3a251e1..372871e 100644
--- a/Mac/Include/macglue.h
+++ b/Mac/Include/macglue.h
@@ -129,6 +129,7 @@
 /* from macmain.c: */
 void PyMac_Exit(int);
 void PyMac_InitApplication(void);
+void PyMac_OutputSeen(void);
 #ifdef USE_MAC_APPLET_SUPPORT
 void PyMac_InitApplet(void);
 #endif