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From: Niklas Holsti <niklas.holsti@tidorum.invalid>
Newsgroups: comp.lang.ada
Subject: Re: interfacing with c object link gnatmake link problem
Date: Mon, 11 Nov 2019 00:39:31 +0200
Organization: Tidorum Ltd
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Date: 2019-11-11T00:39:31+02:00
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On 2019-11-10 23:15, Simon Wright wrote:
> Alain De Vos <devosalain71@gmail.com> writes:
> 
>> I try to interface to a c library.
>> The docs,
>> https://learn.adacore.com/courses/intro-to-ada/chapters/interfacing_with_c.html
>>
>> How to inform gnatmake that it should link to mylibrary.o ?
>>
>> I solve it currently by calling gnatlink explicitly after running gnatmake ,
>> but maybe there is a nicer solution.
>> % gnatlink mytest.ali ./maaltwee.o
> 
> % 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.

--
Niklas Holsti
niklas holsti tidorum fi
       .      @       .