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From: Bill Findlay <findlaybill@blueyonder.co.uk>
Newsgroups: comp.lang.ada
Subject: Re: GNAT Community Edition 2018
Date: Sun, 10 Jun 2018 15:36:24 +0100
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Date: 2018-06-10T15:36:24+01:00
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On 10 Jun 2018, Simon Wright wrote
(in article <lyin6q68a4.fsf@pushface.org>):

> Bill Findlay<findlaybill@blueyonder.co.uk>  writes:
>
> > On macOS 10.13.5 I get this sort of thing:
> >
> > > ld: warning: object file
> > > (/Users/wf/opt/gnat-2018/lib/gcc/x86_64-apple-darwin16.7.0/7.3.1/adalib/lib
> > > gnat.a(errno.o))
> > > was built for newer OSX version (10.12) than being linked (10.11)
>
> Normally that would mean that you're trying to link a binary built on a
> later OS than the OS you're currently running; but that doesn't make
> sense if you're running 10.13.
>
> You _might_ be able to suppress the warning using
>
> -largs -Wl,-macosx_version_min,10.11
>
> From 'man ld':
>
> -macosx_version_min version
> This is set to indicate the oldest Mac OS X version that that the
> output is to be used on. Specifying a later version enables the
> linker to assumes features of that OS in the out- put file. The
> format of version is a Mac OS X version number such as 10.4 or
> 10.5

GNAT GPL 2107 and GNAT 8.1.0 work well for me, so it's not a great problem.
I just don't like to have badly-understood phenomena on my system. 8-)

-- 
Bill Findlay