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Message-ID: <4A4B8CB6.1080202@bredband.net>
From: Per Sandberg <per.sandberg@bredband.net>
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Newsgroups: comp.lang.ada
Subject: Re: Conditional Compilation in Ada
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NNTP-Posting-Date: Wed, 01 Jul 2009 17:18:52 UTC
Date: Wed, 01 Jul 2009 18:20:06 +0200
Xref: g2news2.google.com comp.lang.ada:6786
Date: 2009-07-01T18:20:06+02:00
List-Id: <comp.lang.ada>

Well use the:
" -s       Recompile if compiler switches have changed"
switch and the recompilation will occur.
----------------------------------
   "gnatmake -s -pfools fools-main"

or in the project file

package builder is
for Default_Switches("Ada") use ("-s");
end builder;
-------------------------------------
/Per


sjw wrote:
> On Jun 30, 4:39 pm, Per Sandberg <per.sandb...@bredband.net> wrote:
>> After all discussions her are a solution for conditinal compilation
>> using GNAT:
> 
>> /Ugly but it works
> 
> One thing I noticed is that GNAT doesn't see a change to the
> environment variables as triggering a recompilation (well, there may
> be more flags):
> 
> $ gnatmake -Pfools fools-main
> gcc -c -gnateDDUMB="Fool" -I- -gnatA /Users/simon/tmp/target/fools-
> main.adb
> gcc -c -gnateDDUMB="Fool" -I- -gnatA /Users/simon/tmp/target/fools.ads
> gnatbind -I- -x /Users/simon/tmp/target/fools-main.ali
> gnatlink /Users/simon/tmp/target/fools-main.ali -o /Users/simon/tmp/
> target/fools-main
> $
> $ gnatmake -Pfools -XDUMB="\"Idiot\"" fools-main
> gnatmake: "/Users/simon/tmp/target/fools-main" up to date.