From bug-octave-request at bevo dot che dot wisc dot edu Thu Nov 20 13:01:21 2003
Subject: Build failure with gcc-3.4 prerelease
From: "John W. Eaton" <jwe at bevo dot che dot wisc dot edu>
To: "Billinghurst, David (CALCRTS)" <david dot billinghurst at comalco dot riotinto dot com dot au>
Cc: <bug-octave at bevo dot che dot wisc dot edu>
Date: Thu, 20 Nov 2003 12:58:31 -0600

On 19-Nov-2003, Billinghurst, David (CALCRTS) <david dot billinghurst at comalco dot riotinto dot com dot au> wrote:

| I am having problems building octave on an SGI Origin 300.  I have
| done it numerous times before, but upgrades to hardware, operating
| systems, gcc and octave have combined against me.
| 
| Anyway, one of the things I tried was to build octave-2.1.51 with
| gcc-3.4 from CVS.  This failed.  Not sure if it is a compiler bug or
| if gcc is just getting fussier.

After poking around the current gcc sources, I found that these errors
are due to a change that makes g++ more standard conforming.  The fix
is to change things like

  void resize (int r, int c) { resize_no_fill (r, c); }

in Array2.h to be

  void resize (int r, int c) { this->resize_no_fill (r, c); }

instead.  The reason this change is needed is explained in the current
gcc 3.4 manual in the section

  Trouble -> C++ Misunderstandings -> Name lookup

I'll see if I can fix these problems for 2.1.52.  I'm trying to update
my copy of the gcc sources from CVS now so I can build it and then try
building Octave with the newer compiler.

Thanks,

jwe



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