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From: Simon Wright <simon@pushface.org>
Newsgroups: comp.lang.ada
Subject: Re: Newbie questions re Unicode (1)
Date: Sun, 12 Jul 2020 09:25:44 +0100
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Ian Douglas <ian@vionia.com> writes:

> If I try to declare a variable using non-Latin, the compiler objects.
>
> φ : Long_Float := 1.6180339887;
>
> Why is that?
>
> I'm using UTF-8 in GPS.
>
> Apparently you need to pass -gnatW8 to the compiler, but I can't
> figure out where in GPS to do that ... the "switches" page shows me
> stuff for Pretty Printer.

Edit. Project Properties, Build, Switches, Ada

At the bottom of the page, there's a summary box, showing all the
switches curently selected: you can type -gnatW8 directly in this box,
even though there's no GUI for selecting it.

By the way, if you're on Windows or macOS, don't use non-Latin
characters in unit names!
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81114