From mboxrd@z Thu Jan  1 00:00:00 1970
X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on polar.synack.me
X-Spam-Level: 
X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham
	autolearn_force=no version=3.4.4
X-Google-Thread: 103376,5473431e91435145
X-Google-NewGroupId: yes
X-Google-Attributes: gida07f3367d7,domainid0,public,usenet
X-Google-Language: ENGLISH,ASCII-7-bit
Path: 
 g2news2.google.com!news4.google.com!feeder.news-service.com!85.214.198.2.MISMATCH!eternal-september.org!feeder.eternal-september.org!.POSTED!not-for-mail
From: Simon Wright <simon@pushface.org>
Newsgroups: comp.lang.ada
Subject: Re: gnat GPL 2010 or gcc/ada?
Date: Mon, 07 Mar 2011 17:57:18 +0000
Organization: A noiseless patient Spider
Message-ID: <m2vczuvmo1.fsf@pushface.org>
References: <ikr1nj$mes$1@speranza.aioe.org>
	<e07e07da-afec-456b-8ae7-1da727e486d3@u12g2000vbf.googlegroups.com>
	<cd96e11a-9a84-4d35-a059-a04dd7b2b862@k38g2000vbn.googlegroups.com>
	<ikv3t0$to9$1@speranza.aioe.org>
	<b4debdda-4d22-4642-ac4b-b26674bb97f9@u12g2000vbf.googlegroups.com>
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Injection-Info: mx03.eternal-september.org;
 posting-host="dFCm8HWntFqmDIilBLqEJQ";
	logging-data="7263"; mail-complaints-to="abuse@eternal-september.org";
	posting-account="U2FsdGVkX1/HZAVXUdvRjg7qOlziCMB5y3aGGln5iSo="
User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/23.2 (darwin)
Cancel-Lock: sha1:UNN14tlW5g8e364CpdjnXIKxGAs=
	sha1:T50hN3o9vyqqYFFEZhlKIHqZw1A=
Xref: g2news2.google.com comp.lang.ada:18920
Date: 2011-03-07T17:57:18+00:00
List-Id: <comp.lang.ada>

Julian Leyh <julian@vgai.de> writes:

> On 6 Mrz., 05:51, "Nasser M. Abbasi" <n...@12000.org> wrote:
>> Another question: I would like to use gcc to build an Ada program,
>> only because I know gcc is available everywhere, but if I use gnat GPL
>> how do I make sure the same program will build with gcc if
>> one of these 2 choices happened to be 'recent' than the other or
>> one has more packages than the other?
>
> You'd have to test your program with all the compilers you want it to
> be compilable with, i.e. compile it with both, GNAT-GPL and GCC-GNAT.

You'd have to try to be sure; but I've rarely had problems if I stick to
straightforward constructs. Right now, going for all the Ada2012
features you can is going to cause you problems (not least because
AdaCore have implemented features 'at risk', ie before the standard has
been agreed, and GNAT GPL/GCC are very likely to be at different stages.)