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From: Victor Porton <porton@narod.ru>
Newsgroups: comp.lang.ada
Subject: Re: How to find the type of operating system.
Date: Sat, 25 Jun 2016 00:12:55 +0300
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Date: 2016-06-25T00:12:55+03:00
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Lucretia wrote:

> On Wednesday, 6 April 2016 16:55:51 UTC+1, ldries46  wrote:
>> How can I fin in which operating system a program runs and other details
>> of that operating system.
> 
> You know what OS you're compiling on, so define a variable in GPR OS and
> set it on compile. During compile, set the source dirs to include an os
> specific one and in there put a package which defines the OS:
> 
> package OS is
>    type OSes is (Linux, Windows, MacOS, iOS, etc.);
> 
>    This : OSes := Linux; --  For the linux/os.ads file.
> end OS;

You've forgotten to add "constant" keyword for "This" object.

-- 
Victor Porton - http://portonvictor.org