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From: Luke A. Guest <laguest@archeia.com>
Newsgroups: comp.lang.ada
Subject: Re: How to use Zero Footprint runtime with GNAT GPL 2017
Date: Mon, 17 Jul 2017 21:52:54 +0100
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Date: 2017-07-17T21:52:54+01:00
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>> If you are concerned about the size of the executable, you should use
>> the -ffunction-sections and -fdata-sections compiler switches and let
>> the linker garbage collect unused symbols away (linker switch
>> --gc-sections). See
>> http://docs.adacore.com/gnat_ugn-docs/html/gnat_ugn/gnat_ugn.html
>> section 6.3.3.
> 
> This works if you are using GNU ld; but not for native Darwin.
> 

See
https://stackoverflow.com/questions/24734409/make-error-in-mac-clang-ld-unknown-option-gc-sections