is there a command-line flag I can pass GCC to stop bitching about #pragma once?

is there a command-line flag I can pass GCC to stop bitching about #pragma once?

[Rob Newberry]

I've got a bunch of code that I need to avoid changing, and it uses 
#pragma once.  I understand that it's deprecated; but I still need to 
compile it.

Is there something I can pass to GCC so it will still issue other 
warnings, but ignore that one?

Thanks!

Rob

RE: is there a command-line flag I can pass GCC to stop bitching about #pragma once?

[Rupert Wood]

Rob Newberry wrote:

> I've got a bunch of code that I need to avoid changing, and it uses 
> #pragma once.  I understand that it's deprecated; but I still need
> to compile it.  Is there something I can pass to GCC so it will still
> issue other warnings, but ignore that one?

No, I'm afraid not. If you're willing to recompile your GCC, you can
remove the warning/error call from the first line do_pragma_once of
gcc/cpplib.c but it isn't controlled by any warning flag.

To my horror, I note that the warning has been upgraded to an error in
the current CVS head (to be GCC 3.3). This, IMO, is plain wrong; if it
absolutely must be warned about, that should be limited to pedantic
mode.

Rup.