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From: Simon Wright <simon@pushface.org>
Newsgroups: comp.lang.ada
Subject: Re: Interfacing Ada with C
Date: Sun, 01 Aug 2010 18:08:58 +0100
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"John B. Matthews" <nospam@nospam.invalid> writes:

> In article <m262zzs0nz.fsf@pushface.org>,
>  Simon Wright <simon@pushface.org> wrote:
>
>> I've taken the plunge and started a SourceForge project for this. 
>> It's at http://sourceforge.net/projects/gnat-math-extn/ -- under "Ada 
>> 2005 Math Extensions", click on [Develop] then on [Code].
[...]
>> If anyone feels moved to join in, just say (of course you need a SF 
>> account to update the SF repository, but with Hg it should be 
>> possible to work via patchsets .. )
>
> I just wanted to report success and offer a small patch: it seems to 
> makes a considerable difference in the executable size:

Glad it worked!

> $ hg diff
> diff -r aac8ba7708e2 test/test_extensions.gpr
> --- a/test/test_extensions.gpr  Sat Jul 31 17:09:42 2010 +0100
> +++ b/test/test_extensions.gpr  Sun Aug 01 06:33:33 2010 -0400
> @@ -37,4 +37,8 @@
>        for Default_Switches ("ada") use ("-E");
>     end Binder;
>  
> +   package Linker is
> +      for Default_Switches ("ada") use ("-dead_strip");
> +   end Linker;
> +
>  end Test_Extensions;

I get the impression this is Mac-specific? Sounds like a good trick,
though.

> With GNAT 4.3.4 (FSF), I had to build with Library_Kind "static" before 
> I could build with "dynamic". For some reason, the dylib appears in 
> ../src/.build/ instead of ../lib/. I think that's a bug in the older 
> version that I've also seen building GtkAda.

It's OK on GCC 4.5.0 & GNAT GPL 2010.

Do you really mean you had to build with "static" *before* "dynamic"?
weird ...

I think that while it's under development, maybe a static library would
be the Right Thing.