From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <gcc-bugs-return-465486-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org>
Received: (qmail 5959 invoked by alias); 31 Oct 2014 11:53:01 -0000
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
Received: (qmail 5924 invoked by uid 48); 31 Oct 2014 11:52:58 -0000
From: "ebotcazou at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug ada/63656] a-tags.adb:82:04: warning: types for unchecked conversion have different sizes
Date: Fri, 31 Oct 2014 11:55:00 -0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: changed
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: gcc
X-Bugzilla-Component: ada
X-Bugzilla-Version: 4.9.2
X-Bugzilla-Keywords:
X-Bugzilla-Severity: normal
X-Bugzilla-Who: ebotcazou at gcc dot gnu.org
X-Bugzilla-Status: NEW
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: bug_status cf_reconfirmed_on cc everconfirmed
Message-ID: <bug-63656-4-ihUBdumRA5@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-63656-4@http.gcc.gnu.org/bugzilla/>
References: <bug-63656-4@http.gcc.gnu.org/bugzilla/>
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: 7bit
X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/
Auto-Submitted: auto-generated
MIME-Version: 1.0
X-SW-Source: 2014-10/txt/msg02507.txt.bz2

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63656

Eric Botcazou <ebotcazou at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2014-10-31
                 CC|                            |ebotcazou at gcc dot gnu.org
     Ever confirmed|0                           |1

--- Comment #1 from Eric Botcazou <ebotcazou at gcc dot gnu.org> ---
> Found similar bug #56030. It wasn't fixed because "X32 isn't usable for
> Ada." but regular x86 32bit are usable (I assume).

Bold assumption... you need do something along the lines of PR ada/56030, i.e.
modify ada/gcc-interface/Makefile.in

# Make arch match the current multilib so that the RTS selection code
# picks up the right files. For a given target this must be coherent
# with MULTILIB_DIRNAMES defined in gcc/config/target/t-*.

ifeq ($(strip $(filter-out %x86_64, $(target_cpu))),)
  ifeq ($(strip $(MULTISUBDIR)),/32)
    target_cpu:=i686
  else
    ifeq ($(strip $(MULTISUBDIR)),/x32)
      target_cpu:=x32
    endif
  endif
endif

so that target_cpu:=i686 is selected, see $(builddir)/gcc/multilib.h.