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Date: Tue, 14 Mar 2017 09:38:04 -0700 (PDT)
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Subject: Re: Gtk Combobox under Ubuntu
From: ahlan@marriott.org
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Xref: news.eternal-september.org comp.lang.ada:31978
Date: 2017-03-14T09:38:04-07:00
List-Id: <comp.lang.ada>

On Monday, March 13, 2017 at 6:58:33 PM UTC+1, Dmitry A. Kazakov wrote:
> On 2017-03-13 18:50, ahlan@marriott.org wrote:
>=20
> > Because they work when run from GPS, we can't debug them - because they=
 work.
>=20
> One difference I know is that GPS redirects standard files. So, the same=
=20
> GtkAda program doing Ada.Text_IO.Put_Line works under GPS, but crashes=20
> outside it.
>=20
> --=20
> Regards,
> Dmitry A. Kazakov
> http://www.dmitry-kazakov.de

Our idea that the speed of the machine might be a factor was a red herring.
We have done some more tests and discovered that our programs always work o=
n
Ubuntu if Gnat/GtkAda is NOT installed.

So we now think it is some form of combination of Gnat GPL 2015/2016 and Gt=
kAda GPL 2015/2016 that is causing the failure.

I notice that when Gnat GPL2015 or GPL2016 is installed (without Gtk or Gtk=
Ada) our Gtk programs stop working - they don't even startup. So obviously =
installing Gnat puts something into some search path that causes our GTK pr=
ograms to crash.

My guess - to be confirmed tomorrow is that installing Gtk/GtkAda will fix =
this and that depending on which GtkAda/Gtk is installed (either 2015 or 20=
16) we will have a working program or one that fails if it has comboboxes. =
I suspect the 15 is OK and that it is the newer 16 that is causing us probl=
ems.

I know nothing about Linux - so I don't know if what I am describing makes =
sense or is indeed possible.
It is just the result of our tests.

MfG
Ahlan