--- pce.h.old	2006-05-02 20:06:13.000000000 +0200
+++ pce.h	2006-05-02 20:06:33.000000000 +0200
@@ -196,7 +196,7 @@
 extern UChar language;
 // the current language
 
-extern int BaseClock, UPeriod;
+extern int UPeriod;
 
 extern UChar US_encoded_card;
 // Do we have to swap even and odd bytes in the rom