From mboxrd@z Thu Jan  1 00:00:00 1970
X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on
	ip-172-31-74-118.ec2.internal
X-Spam-Level: 
X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00,FREEMAIL_FROM
	autolearn=unavailable autolearn_force=no version=3.4.4
X-Received: by 2002:a37:63c2:: with SMTP id x185mr11728014qkb.82.1592738302249;
        Sun, 21 Jun 2020 04:18:22 -0700 (PDT)
X-Received: by 2002:a4a:4c8e:: with SMTP id a136mr10207814oob.23.1592738302023;
 Sun, 21 Jun 2020 04:18:22 -0700 (PDT)
Path: eternal-september.org!reader01.eternal-september.org!feeder.eternal-september.org!news.gegeweb.eu!gegeweb.org!usenet-fr.net!proxad.net!feeder1-2.proxad.net!209.85.160.216.MISMATCH!news-out.google.com!nntp.google.com!postnews.google.com!google-groups.googlegroups.com!not-for-mail
Newsgroups: comp.lang.ada
Date: Sun, 21 Jun 2020 04:18:21 -0700 (PDT)
In-Reply-To: <rcn6gi$1nbc$1@gioia.aioe.org>
Complaints-To: groups-abuse@google.com
Injection-Info: google-groups.googlegroups.com; posting-host=124.171.108.61; posting-account=d51RWwoAAADvR-x0zYAtT9z3CRxT1eXo
NNTP-Posting-Host: 124.171.108.61
References: <4bbbd09e-e14f-46f5-a510-bdf0c17eba8fo@googlegroups.com> <rcn6gi$1nbc$1@gioia.aioe.org>
User-Agent: G2/1.0
MIME-Version: 1.0
Message-ID: <e6de3501-3174-4553-b220-9b3e75170885o@googlegroups.com>
Subject: Re: gnoga build fails on Mac
From: Roger <rogermcm2@gmail.com>
Injection-Date: Sun, 21 Jun 2020 11:18:22 +0000
Content-Type: text/plain; charset="UTF-8"
Xref: reader01.eternal-september.org comp.lang.ada:59140
List-Id: <comp.lang.ada>

On Sunday, June 21, 2020 at 6:41:58 PM UTC+10, Dmitry A. Kazakov wrote:
> On 21/06/2020 09:57, Roger wrote:
> > Mac Mini (2018)
> > OSX 10.15.5
> > XCode 11.5
> > GNAT  Community Edition 2020
> > 
> > Attempting to build git clone git://git.code.sf.net/p/gnoga/code gnoga.
> > 
> > First problem with -gnat05 flag which I overcame but probably not the correct way.
> > Second, killer, problem:
> > object-handle.adb:153:22: access attribute cannot be used as actual for universal_access equality
> > object-handle.adb:163:23: access attribute cannot be used as actual for universal_access equality
> > 
> > How can I fix this?
> 
> GNAT CE 2020 does not accept comparisons like:
> 
>     procedure Foo (X : access T) is
>     begin
>        ...
>        if Y'Access = X then
>        ...
> 
> I cannot say anything about legality of such comparisons, maybe the 
> change is related to the upcoming standard, maybe it was never legal.
> 
> The latest version 4.50 of the Simple Components fixes the issue by 
> replacing access types comparison with by address comparison. [*]
> 
>     http://www.dmitry-kazakov.de/ada/components.htm
> 
> Replace the offending source files and it should compile again.
> 
> -------------------
> * I don't know the motivation behind forbidding comparison of access 
> attribute, probably some obscure unlikely portability case. Comparing 
> addresses would be less safe, for sure, but not much.
> 
> -- 
> Regards,
> Dmitry A. Kazakov
> http://www.dmitry-kazakov.de

Thanks,
That problem is fixed.
However, I now have another problem that I don't know how to fix that is not part of Simple Components but presumably due to GNAT CE 2020 restrictions.
gnoga-gui-view-docker.adb:117:40: implicit conversion of anonymous access parameter not allowed
and other similar errors in gnoga-gui-view-docker.adb:117:40