From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id 014D13858D20; Wed, 8 Feb 2023 22:11:33 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 014D13858D20 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1675894293; bh=uK8mnvpaGeTejIRrogfnG6q9wfwTEAjrqEvinSgM5YI=; h=From:To:Subject:Date:In-Reply-To:References:From; b=ln7/0IfvfXh8We9LJhwGA+arBeDGKoqqk4O1k/4oOcldyEnPBZIn7FBcyGMg4hii2 p+IGpJoVFGiK9cTMi+0Qrl/MiAyj3Z8hWCbX/N196QDgupZHUNdWO8lPTTW2jDu9Iq joa2WrPf1kyHwNUqM3K41y4757sd7Exai/BN6Nz0= From: "pinskia at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug pch/108732] Pre-compiled headers cannot be output to /dev/null Date: Wed, 08 Feb 2023 22:11:32 +0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: pch X-Bugzilla-Version: 12.2.0 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: pinskia at gcc dot gnu.org X-Bugzilla-Status: UNCONFIRMED X-Bugzilla-Resolution: X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: --- X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 List-Id: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D108732 --- Comment #2 from Andrew Pinski --- >I maintain a number of builds that do similar invocations to verify that e= ach header file is self-contained. You could just do: gcc -xc -include header.h /dev/null -o /dev/null -c Which works better and will always work when modules become standard ...=