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From: Simon Wright <simon@pushface.org>
Newsgroups: comp.lang.ada
Subject: Re: Exporting linker options from library GPR
Date: Fri, 16 Feb 2018 08:29:41 +0000
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Date: 2018-02-16T08:29:41+00:00
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Luke A. Guest <laguest@archeia.com> writes:

> Simon Wright <simon@pushface.org> wrote:
>> Lucretia <laguest9000@googlemail.com> writes:
>> 
>>> 1. GPRBuild whines about the Linker package in the library gpr, WTF?
>>> 2. GPRInstall removes the Linker package on install, WTF? That's
>>> really useful!
>> 
>> Inside package Linker, you need to use Linker_Options rather than
>> Default_Switches ("ada")
>> 
>> 
>
> Strange. Ok, I’ll try it. Is there an equivalent one for c compiler
> options? Just in case someone tries to rebuild the lib once it’s
> installed?

>From the gprbuild references, Linker_Options

   "specifies a list of additional switches to be given to the linker
   when linking an executable. It is ignored when defined in the main
   project and taken into account in all other projects that are
   imported directly or indirectly. These switches complement the
   Linker'Switches defined in the main project. This is useful when a
   particular subsystem depends on an external library: adding this
   dependency as a Linker_Options in the project of the subsystem is
   more convenient than adding it to all the Linker'Switches of the main
   projects that depend upon this subsystem.

so (a) it only really applies to a library, (b) it's
language-independent.

We already have Compiler'[Default_]Switches ("c").