Index: modelgen/ap.h
--- modelgen/ap.h.orig
+++ modelgen/ap.h
@@ -103,7 +103,8 @@ class CS { (public)
   bool	      match1(char c)const{return (peek()==c);}
   bool	      match1(const std::string& c)const
 		{return ns_more() && strchr(c.c_str(),peek());}
-  int	      find1(const std::string& c)const
+  std::string::size_type	      
+	      find1(const std::string& c)const
 	{return ((ns_more()) ? c.find_first_of(peek()) : std::string::npos);}
   bool	      is_xdigit()const
 		{untested(); return (match1("0123456789abcdefABCDEF"));}