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From: Niklas Holsti <niklas.holsti@tidorum.invalid>
Newsgroups: comp.lang.ada
Subject: Re: Weird error emanating from GNAT binder: duplicat "gnatS"
Date: Thu, 23 Feb 2023 14:57:52 +0200
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On 2023-02-23 8:34, Jerry wrote:
> I deleted lines from common.adb and common.ads piecemeal until I arrived at this MWE:
> 
> with Common;
> procedure Test_gnatS_Problem is
> begin
>      null;
> end Test_gnatS_Problem;
> 
> package body Common is
>      procedure Dummy is
>      begin
>          null;
>      end Dummy;
> end Common;
> 
> with GNAT.OS_Lib; -- Error disappears when this line is removed.
> package Common is
>      procedure Dummy;
> end Common;
> 
> Surely this is enough for someone to work with in fixing this problem.
> 
> Jerry


Compiles with no error (including the "with" clause) on my system, which 
is an oldish one:

GNAT Community 2019 (20190517-83)
MacOS Mojave