From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <gcc-bugs-return-415148-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org>
Received: (qmail 30619 invoked by alias); 13 Feb 2013 11:46:45 -0000
Received: (qmail 30559 invoked by uid 48); 13 Feb 2013 11:46:24 -0000
From: "uwe.seidler@siemens-enterprise.com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug preprocessor/56306] New: -m32 does not support all includes
Date: Wed, 13 Feb 2013 11:46:00 -0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: new
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: gcc
X-Bugzilla-Component: preprocessor
X-Bugzilla-Keywords:
X-Bugzilla-Severity: minor
X-Bugzilla-Who: uwe.seidler@siemens-enterprise.com
X-Bugzilla-Status: UNCONFIRMED
X-Bugzilla-Priority: P3
X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org
X-Bugzilla-Target-Milestone: ---
X-Bugzilla-Changed-Fields:
Message-ID: <bug-56306-4@http.gcc.gnu.org/bugzilla/>
X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/
Auto-Submitted: auto-generated
Content-Type: text/plain; charset="UTF-8"
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: 2013-02/txt/msg01313.txt.bz2


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56306

             Bug #: 56306
           Summary: -m32 does not support all includes
    Classification: Unclassified
           Product: gcc
           Version: 4.3.4
            Status: UNCONFIRMED
          Severity: minor
          Priority: P3
         Component: preprocessor
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: uwe.seidler@siemens-enterprise.com


Created attachment 29437
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=29437
simple test program

Scenario: Compilation of a 32bit application on a 64bit host.
For "compiler internal" header files the preprocessor accesses the corret
header files, e.g. #include <bits/stdc++.h> includes 32/bits/stdc++.h.

For includes located somewher in the sysroot folders this usefull mechanism
does not work.

gcc-4.3 -m32 curlbr.c 
does not work if 32bit variant of curlbuild.h is provided in a 32/curl folder.