--- a/src/parse.h
+++ b/src/parse.h
@@ -73,11 +73,18 @@
 extern bool evaluating_function_body;
 
 // Keep track of symbol table information when parsing functions.
-extern symbol_table *symtab_context;
+extern std::stack<symbol_table*> symtab_context;
+
+// Name of parent function when parsing function files that might
+// contain nested functions.
+extern std::string parent_function_name;
 
 // TRUE means warn about function files that have time stamps in the future.
 extern bool Vwarn_future_time_stamp;
 
+// Keep a count of how many END tokens we expect.
+extern int end_tokens_expected;
+
 extern void
 parse_and_execute (FILE *f);