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From: Jacob Sparre Andersen <jacob@jacob-sparre.dk>
Newsgroups: comp.lang.ada
Subject: Re: why is java so widespread when ada is free? makes 0 sense
Date: Fri, 22 Jul 2016 14:17:56 +0200
Organization: JSA Research & Innovation
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Date: 2016-07-22T14:17:56+02:00
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Arie van Wingerden wrote:

> Ada is not "free" in the sense of Java.
> There is both a GPL version (not to be used for commercial purposes) and a separate commercial version.

I think you're confusing the programming language with the compilers
from one vendor.

The Free Software Foundation publishes an Ada compiler, which is free
and can be used to develop both Open Source and closed source software.

AdaCore publishes an Ada compiler for developing only GNU GPL software,
and sells support and access to another one, which can be used to
develop both Open Source and closed source software.

RRSoftware sells Janus/Ada (for an affordable price), which most likely
can be used to develop both Open Source and closed source software.

PTC sells at least two different Ada compilers (ObjectAda and ApexAda),
which most likely can be used to develop both Open Source and closed
source software.

Irvine Compiler Corporation (ICC) sells ICC/Ada, which most likely can
be used to develop both Open Source and closed source software.

DDC-I seems to exist and support existing customers, but I don't know if
they sell their compiler to new customers.

The PTC and ICC compilers are somewhat expensive.  The same goes for the
non-GPL compiler from AdaCore.  I don't know anything about the pricing
of the DDC-I compiler.

I hope I didn't forget anybody...

Greetings,

Jacob
-- 
Black Hole: Where the universe made a Divide by Zero.