Adjust to the moving target called the C++ standard. Apparently nowadays it's not allowed to define an explicit copy constructor but not an assignment operator. Consequently, defining the explicit copy constructor in terms of the implicit/automatic assignment operator for general convenience no longer works. Add assignment operators. Caution: not tested with the IBM compiler, but there's no particular reason it shouldn't work.

--- a/anagram/agcore/token.h	Mon May 30 23:32:56 2022 -0400
+++ b/anagram/agcore/token.h	Mon May 30 23:46:22 2022 -0400
@@ -20,6 +20,7 @@
   Token() {}
   Token(int x);
   Token(const Token &t);
+  void operator = (const Token &);
   static Token create();
   static const int first;
   static void reset();