--- calc/rpn.hh.orig	Sun Nov 28 21:28:00 1999
+++ calc/rpn.hh	Sun Nov 28 21:28:25 1999
@@ -108,7 +108,7 @@
     Ref start;
     Ref end;
     
-    normalize();
+    void normalize();
 };
 
 
@@ -145,7 +145,7 @@
                   contents.string_val[0] = 0;
                   contents.error_code = NO_ERROR;}
     ~Stack_elem() {delete [] contents.string_val;}
-    operator=(const Stack_elem &right) {
+    void operator=(const Stack_elem &right) {
       type = right.type;
       contents.fp_val = right.contents.fp_val;
       contents.ref_val = right.contents.ref_val;
