Mail Archives: cygwin/2006/01/31/17:17:50
On Tue, Jan 31, 2006 at 09:37:05PM +0100, Gerrit P. Haase wrote:
> Peter schrieb:
>
> > On Mon, Jan 23, 2006 at 10:01:44PM +0100, Peter Ekberg wrote:
> >> On Mon, Jan 16, 2006 at 12:13:12PM +0100, Peter Ekberg wrote:
> >> > On Mon, Jan 09, 2006 at 10:58:00AM +0100, Peter Ekberg wrote:
> >> > > Hello!
> >> > >
> >> > > I recently tried to build a package that was using cpp for other
> >> > > purposes than preprocessing C files. Its configure script was
> >> > > looking for a way to not have cpp predefine anything, and it
> >> > > specifically tried the -undef option, but failed. From reading the
> >> > > docs, I couldn't figure out why. Here's a quote from "info cpp":
> >> > >
> >> > > '-undef'
> >> > > Do not predefine any system-specific or GCC-specific macros. The
> >> > > standard predefined macros remain defined. *Note Standard
> >> > > Predefined Macros::.
> >> > >
> >> > > So I searched the web a bit and figured that I could probably fix
> >> > > it in the specs file. I realise that the specs file probably isn't
> >> > > the canonical place to change this, but I'll leave that to the gcc
> >> > > maintainer.
> >> > >
> >> > > Attached is a patch for the specs file that wraps all old define
> >> > > rules for cpp inside the following:
> >> > >
> >> > > %{!undef:old define rules}
> >> > >
> >> > > I don't know if this is the correct thing to do, but it works for
> >> > > me<TM>.
> >> >
> >> > GCC maintainer, are you there? Can you come out and play, please? :-)
> >>
> >> Ping.
>
> > Pong.
>
> Peng.
Pang.
> Looks like a reasonable approach to fix this. However, the specs should
> not override -undef, looks like a bug in cpp. Have you reported this as
> a bug to the gcc bug tracker?
I have now, http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26052
Let's see what happens.
Cheers,
Peter
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