Re: Bootstrap failure in libstdc++-v3 on GNU/Linux x86

[Mark Mitchell <mark at codesourcery dot com>]

Ranjit Mathew wrote:

> Eric Botcazou wrote:
>  
>
> > > This doesn't make sense because the member function in question reads:
> > >
> > > inline long double&
> > > complex<long double>::real()
> > > { return __real__ _M_value; }                   // line 1296
> > >
> > > And _M_value does have type __complex__ long double.  Should I start a
> > > binary search, or is this known to be some kind of recent breakage?
> > >      
> > Could be Mark's latest patch to the parser.
> >    
>
> AFAICT, yes - I was able to proceed with the bootstrap once
> I reverted:
>
>  http://gcc.gnu.org/ml/gcc-patches/2004-06/msg02268.html
>
> (on i686-pc-linux-gnu)
>  
I've checked in yet another fix here, and tests are running -- but I did 
get past building V3.

2004-06-28  Mark Mitchell  <mark@codesourcery.com>
                                                                               

       * parser.c (cp_parser_set_decl_spec_type): Fix thinko.
                                                                               


--
Mark Mitchell
CodeSourcery, LLC
(916) 791-8304
mark@codesourcery.com

Index: parser.c
===================================================================
RCS file: /cvs/gcc/gcc/gcc/cp/parser.c,v
retrieving revision 1.219
diff -c -5 -p -r1.219 parser.c
*** parser.c	27 Jun 2004 18:56:46 -0000	1.219
--- parser.c	28 Jun 2004 07:38:37 -0000
*************** cp_parser_set_decl_spec_type (cp_decl_sp
*** 15437,15453 ****
        && (decl_specs->type
  	  || decl_specs->specs[(int) ds_long]
  	  || decl_specs->specs[(int) ds_short]
  	  || decl_specs->specs[(int) ds_unsigned]
  	  || decl_specs->specs[(int) ds_signed]))
!     decl_specs->redefined_builtin_type = type_spec;
    else if (decl_specs->type)
      decl_specs->multiple_types_p = true;
    else
      {
        decl_specs->type = type_spec;
        decl_specs->user_defined_type_p = user_defined_p;
      }
  }
  
  /* DECL_SPECIFIERS is the representation of a decl-specifier-seq.
     Returns TRUE iff `friend' appears among the DECL_SPECIFIERS.  */
--- 15437,15461 ----
        && (decl_specs->type
  	  || decl_specs->specs[(int) ds_long]
  	  || decl_specs->specs[(int) ds_short]
  	  || decl_specs->specs[(int) ds_unsigned]
  	  || decl_specs->specs[(int) ds_signed]))
!     {
!       decl_specs->redefined_builtin_type = type_spec;
!       if (!decl_specs->type)
! 	{
! 	  decl_specs->type = type_spec;
! 	  decl_specs->user_defined_type_p = false;
! 	}
!     }
    else if (decl_specs->type)
      decl_specs->multiple_types_p = true;
    else
      {
        decl_specs->type = type_spec;
        decl_specs->user_defined_type_p = user_defined_p;
+       decl_specs->redefined_builtin_type = NULL_TREE;
      }
  }
  
  /* DECL_SPECIFIERS is the representation of a decl-specifier-seq.
     Returns TRUE iff `friend' appears among the DECL_SPECIFIERS.  */