Path: utzoo!telly!attcan!dptcdc!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!EXPO.LCS.MIT.EDU!keith
From: keith@EXPO.LCS.MIT.EDU (Keith Packard)
Newsgroups: gnu.gcc.bug
Subject: another -traditional nit
Message-ID: <8903241501.AA29636@expo.lcs.mit.edu>
Date: 24 Mar 89 15:01:55 GMT
Sender: daemon@tut.cis.ohio-state.edu
Distribution: gnu
Organization: GNUs Not Usenet
Lines: 27


Pcc allows:
	typedef long	fd_mask;
	typedef long	fd_mask;

but only with the primary type 'long'.  Gcc should probably allow
this as well with the -traditional option.  The trivial fix is
to allow arbitrary redefinition of typedefs, at least the old program
will still compile:

static char *
redeclaration_error_message (new, old)
     tree new, old;
{
  if (TREE_CODE (new) == TYPE_DECL)
    {
      if (flag_traditional)
	return 0;
      return "redefinition of `%s'";
    }
  else if (TREE_CODE (new) == FUNCTION_DECL)

The better fix might be to discover exactly which types are allowed
in this situation.

keith packard
keith@expo.lcs.mit.edu