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From: Simon Wright <simon@pushface.org>
Newsgroups: comp.lang.ada
Subject: Re: A new universe of Ada
Date: Tue, 27 Sep 2022 15:10:23 +0100
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Roger Mc <rogermcm2@gmail.com> writes:

> On Monday, September 26, 2022 at 11:23:35 PM UTC+10, kevc...@gmail.com wrote:
>> You can get a hello world open in gnat studio 
>> with two? commands though. 
>> 
>> "https://alire.ada.dev/docs/#first-steps"
> Following the "first-steps", progress succeeded up to
> gnat_native=11.2.4 installed successfully but then failure:
> dyld: lazy symbol binding failed: Symbol not found:
> ___darwin_check_fd_set_overflow
> Any ideas on how to fix this:
> Thanks,
> Roger

I tried this on my mid-2012 Macbook Pro running 10.11.6 (El Capitan),
the problem arises when running gprconfig (all the Alire-provided
releases were built against a later Xcode (Google suggests 11.4 or
later??) which does provide this symbol). I dare say it'd happen running
the compiler too.

Only suggestion: install one of my builds, set it on your PATH, run alr
toolchain --select & choose the 'gnat_external' line for the
compiler. Alire then chooses a compatible gprbuild.

11.2.0 at Github:
https://github.com/simonjwright/distributing-gcc/releases/tag/gcc-11.2.0-native

Or 12.1.0 from Github:
https://github.com/simonjwright/distributing-gcc/releases/tag/gcc-12.1.0-x86_64