gcc 3.2's cpp breaks configure scripts

[Kai Henningsen]

schwab@suse.de (Andreas Schwab)  wrote on 31.07.02 in <jeheig3uzb.fsf@sykes.suse.de>:

> Jeff Garzik <jgarzik@mandrakesoft.com> writes:
>
> |> cpp is spitting out a warning about changing the search order of include
> |> directories, and this is breaking a _ton_ of configure scripts.  I found
> |> this when I started rebuilding Mandrake with gcc-3.2 branch.
> |>
> |> Just a heads-up, since I'm too slack to file a formal bug report :) This
> |> is particularly subtle breakage sometimes, because sometimes the
> |> configure step will succeed, but the build will break, or lack features,
> |> due to the lack of HAVE_FOO_H defines.
>
> The Right Thing to do is not to add -I/usr/include because that can cause
> subtle breakage as well.

Or maybe the right thing is to fix autoconf so that it doesn't think a  
warning is a fatal error.

I'd consider that a pretty serious (and really inexcusable) autoconf bug.

MfG Kai