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From: "pinskia at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug preprocessor/89808] An option to disable warning "#pragma once
 in main file"
Date: Thu, 24 Aug 2023 06:30:26 +0000
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X-Bugzilla-Component: preprocessor
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D89808

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           See Also|                            |https://gcc.gnu.org/bugzill
                   |                            |a/show_bug.cgi?id=3D47857

--- Comment #14 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
(In reply to Diego SC from comment #13)
> Another use case.
>=20
> We are using precompiled headers in our application, and that includes
> headers which have "#pragma once". When generating the precompiled header=
 we
> get this warning:
>=20
>   warning: #pragma once in main file
>=20
> In that context the warning is actually invalid, so it would be really ni=
ce
> to be able to turn this warning off, without turning off all warnings.

That is PR 47857 .=