* Short term
-** scan-code.l
-Avoid variables for format strings, as then GCC cannot check them.
-show_sub_messages should call show_sub_message.
-
** m4 names
b4_shared_declarations is no longer what it is. Make it
b4_parser_declaration for instance.
** glr.cc: %defines
it should not be mandatory.
+** $ and others in epilogue
+A stray $ is a warning in the actions, but an error in the epilogue.
+IMHO, it should not even be a warning in the epilogue.
+
** stack.hh
Get rid of it. The original idea is nice, but actually it makes
the code harder to follow, and uselessly different from the other