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From: Simon Wright <simon@pushface.org>
Newsgroups: comp.lang.ada
Subject: Re: Problem with emacs ada-mode-7.1.4
Date: Sat, 17 Jul 2021 22:18:10 +0100
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Paul Onions <ponions37@gmail.com> writes:

> Not sure if this is the right place to post this, but I have a problem
> compiling the Ada code after installing ada-mode 7.1.4 as a package in
> Gnu Emacs 27.2.
[...]
> sal-gen_unbounded_definite_vectors.adb:452:10: access discriminant in
> return object would be a dangling reference
[...]
> I'm using GCC 11.1.0 from the download at
> https://github.com/simonjwright/building-gcc-macos-native, on macOS
> Big Sur.

There has been a problem in this area for a while now. I compiled the
ada-mode I'm using (successfully) with GNAT CE 2019.