From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <gcc-bugs-return-405022-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org>
Received: (qmail 29302 invoked by alias); 29 Oct 2012 14:47:46 -0000
Received: (qmail 27898 invoked by uid 48); 29 Oct 2012 14:47:13 -0000
From: "manu at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug preprocessor/55115] [>=4.5.0 regression] missing headers as fatal breaks cproto logic
Date: Mon, 29 Oct 2012 14:47:00 -0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: changed
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: gcc
X-Bugzilla-Component: preprocessor
X-Bugzilla-Keywords:
X-Bugzilla-Severity: enhancement
X-Bugzilla-Who: manu at gcc dot gnu.org
X-Bugzilla-Status: RESOLVED
X-Bugzilla-Priority: P3
X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org
X-Bugzilla-Target-Milestone: ---
X-Bugzilla-Changed-Fields: Status Resolution
Message-ID: <bug-55115-4-YqmsPhjnmu@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-55115-4@http.gcc.gnu.org/bugzilla/>
References: <bug-55115-4@http.gcc.gnu.org/bugzilla/>
X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/
Auto-Submitted: auto-generated
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable
MIME-Version: 1.0
Mailing-List: contact gcc-bugs-help@gcc.gnu.org; run by ezmlm
Precedence: bulk
List-Id: <gcc-bugs.gcc.gnu.org>
List-Archive: <http://gcc.gnu.org/ml/gcc-bugs/>
List-Post: <mailto:gcc-bugs@gcc.gnu.org>
List-Help: <mailto:gcc-bugs-help@gcc.gnu.org>
Sender: gcc-bugs-owner@gcc.gnu.org
X-SW-Source: 2012-10/txt/msg02698.txt.bz2


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D55115

Manuel L=C3=B3pez-Ib=C3=A1=C3=B1ez <manu at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|WAITING                     |RESOLVED
         Resolution|                            |INVALID

--- Comment #4 from Manuel L=C3=B3pez-Ib=C3=A1=C3=B1ez <manu at gcc dot gnu=
.org> 2012-10-29 14:47:12 UTC ---
(In reply to comment #2)
> (In reply to comment #1)
> > If the headers do nothing, just delete them? If the headers do somethin=
g, how
> > can you preprocess the file without the info from the headers?
>=20
> That won't work, I believe cproto parses the errors produced by GCC and f=
igures
> out which declarations are missing based on the errors, then creates a he=
ader
> containing those declarations.

That seems an odd way to generate missing declarations. Missing headers may
lead to different code being compiled because of undefined macros, feature =
test
macros, pragmas, etc.

If the header is missing, then ignoring the error will produce exactly the =
same
result as commenting out the #include.

Anyway, not a bug.