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From: Jerry <lanceboyle@qwest.net>
Newsgroups: comp.lang.ada
Subject: Pragma for conditional compilation? (Ada 2005 vs. 95)
Date: Thu, 27 Sep 2007 00:56:09 -0700
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Date: 2007-09-27T00:56:09-07:00
List-Id: <comp.lang.ada>

Is there a pragma to designate some lines of Ada for conditional
compilation depending on if the compiler is Ada 2005 or not?

I have made some bindings that use some of the declarations from Annex
G.3 which relates to vector-matrix stuff which is new to Ada 2005. If
the compiler provides those declarations (i.e., is 2005), I want to
use the compiler's version because I figure that is the cleanest way
to get things done. If the compiler is Ada 95, I instead want to
provide the declarations myself.

Currently, I handle this by commenting out the declarations of my own
if Ada 2005 and uncomment them if Ada 95. (There are a couple of
"with" and "use" lines that also have to be (un)commented but it is a
similar situation.)

I'm guessing this is an Ada "no-no" but would be interested to know
for sure.

Jerry