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From: Simon Wright <simon@pushface.org>
Newsgroups: comp.lang.ada
Subject: Re: interfacing with c object link gnatmake link problem
Date: Mon, 11 Nov 2019 15:32:35 +0000
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Date: 2019-11-11T15:32:35+00:00
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Niklas Holsti <niklas.holsti@tidorum.invalid> writes:

> On 2019-11-10 23:15, Simon Wright wrote:
>> Alain De Vos <devosalain71@gmail.com> writes:
>>
>>> I try to interface to a c library.
[...]
>> % gnatmake mytest.adb -largs maaltwee.o
>>
>> (-largs is followed by arguments to be passed to the linker)
>
> My habit is to add
>
>    pragma Linker_Options ("mylibrary.o");
>
> to the Ada source file that imports the C functions. Then there is no
> need to add options to the gnatmake command.

When it's not a small demo/test program, my habit is to write a gprbuild
project file. Or maybe a makefile.

It won't worry me, but what if the object file turns out to be
mylibrary.obj? Much easier to change these sorts of OS-dependent things
outside Ada.