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From: "G.B." <bauhaus@notmyhomepage.invalid>
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Subject: Re: get_immediate echoe character--compiled error?
Date: Tue, 3 Oct 2023 23:00:40 +0200
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On 02.10.23 04:42, richardthiebaud wrote:
> When I build and run the following program using Gnat 11 in Linux Mint 21.2, the keys I press are echoed on the console. 

Which console?

Can you try to run a C program in the same console
that tests for it to be y TTY? See Simon Wright's link
to GNAT's implementation. The C program would be
calling isatty(0) or isatty(fileno(your_stream));

Some IDEs have a console window that is not
a TTY in the sense of termios(4)/tcsetattr(3).
Echoing is different, then.