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,aea4cc77526f5e4a X-Google-Attributes: gid103376,public,usenet X-Google-Language: ENGLISH,ASCII-7-bit Path: g2news1.google.com!news2.google.com!newsfeed2.dallas1.level3.net!news.level3.com!newsfeed-00.mathworks.com!nntp.TheWorld.com!not-for-mail From: Robert A Duff Newsgroups: comp.lang.ada Subject: Re: Separate Compilation in Programming Languages Date: Wed, 27 Feb 2008 17:31:43 -0500 Organization: The World Public Access UNIX, Brookline, MA Message-ID: References: <7xJvj.7420$Ru4.4246@newssvr19.news.prodigy.net> <1wkwj.10399$0o7.2971@newssvr13.news.prodigy.net> NNTP-Posting-Host: shell01.theworld.com Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Trace: pcls6.std.com 1204151509 31116 192.74.137.71 (27 Feb 2008 22:31:49 GMT) X-Complaints-To: abuse@TheWorld.com NNTP-Posting-Date: Wed, 27 Feb 2008 22:31:49 +0000 (UTC) User-Agent: Gnus/5.1008 (Gnus v5.10.8) Emacs/21.3 (irix) Cancel-Lock: sha1:AhABYMhH8+7/BA+zd5NBCKyz08k= Xref: g2news1.google.com comp.lang.ada:20133 Date: 2008-02-27T17:31:43-05:00 List-Id: Ray Blaak writes: > writes: >> "Ray Blaak" wrote in message >> news:uhcfv5xql.fsf@STRIPCAPStelus.net... >> > >> > Does the existence of gnatmake indicate corrupted dependency management in >> > Ada? >> > >> No. It might indicate a problem with the GNAT implementation, but not >> with Ada. Not all Ada compilers are GNAT, and some handle this >> more easily. One of the issues for GNAT is that it depends on >> the GNU model. This is not true of Rational Apex, Aonix, or >> even the ICC compiler. > > I guess what I object to here is the idea that tools like gnatmake or Ant > indicate a problem at all. I agree. I'm completely mystified by Richard's assertion that the existence of gnatmake might indicate a problem with GNAT. Any decent Ada implementation comes with a tool that knows how to rebuild (what to recompile/relink/whatever, and in what order, if that matters) based on what source files changed. The fact that such a tool can exist is one thing that makes Ada better than (for example) C. What does the "GNU model" mean, by the way? > GNAT's library model lives on a different place on the tradeoff curve as > compared to the other Ada vendors. It allows some problems to be avoided at > the expense of suffering from other possible problems that the other Ada > vendors do not. What's the "suffering" you see here? - Bob