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Date: Wed, 7 Jan 2015 04:23:47 -0800 (PST)
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Subject: Re: GNAT GPL is not shareware
From: sbelmont700@gmail.com
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Xref: news.eternal-september.org comp.lang.ada:24441
Date: 2015-01-07T04:23:47-08:00
List-Id: <comp.lang.ada>

On Wednesday, January 7, 2015 6:00:48 AM UTC-5, bj=F6rn lundin wrote:
>=20
> And I still do not see why changing PATH to point to different
> compiler installations are considered DISGUSTING

Because you can't version control an environment variable.  A major part of=
 change management is to ensure that the same product is built the same way=
, with the same compiler, each and every time, e.g. if your development pla=
n says you are going to use GNAT-FSF, then you should be unable (or at leas=
t have it be extraordinary hard) to compile it with GNAT-GPL (or any other =
compiler).  With the PATH option, Joe might get a different executable than=
 Bob.  Or even more dire, if Steve the admin installs a new compiler versio=
n or changes the directory structure, suddenly Joe and Bob silently start u=
sing a different compiler and nobody notices until it's too late.  Now add =
in that Joe and Bob might each be working on multiple projects that require=
 different versions of different compilers, and you'll never contain the me=
ss.  Solutions like gprbuild (i.e. the .cgpr file, that you can check into =
the tree) offer much more consistency.

-sb