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Newsgroups: comp.lang.ada
Date: Sun, 25 Jan 2015 15:15:32 -0800 (PST)
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Subject: Re: GNAT linker error
From: hosszu.gabor90@gmail.com
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Xref: news.eternal-september.org comp.lang.ada:24742
Date: 2015-01-25T15:15:32-08:00
List-Id: <comp.lang.ada>

Thank you, adding -lpixman-1 made it work. But please explain me how it can happen that:
- with GPS 5 it worked without lib pixman linker flag
- "manually" it also worked
- both of these mean execution of the following command: (I have compared them)
gnatmake -d -P/home/myuser/own_projects/ada/AdaTest.gpr -vP2 -j4 -g
So everything depends only on the project files (AdaTest.gpr and gtkada.gpr) which do not contain anything related to pixman.

And the program is this simple GtkAda example:

with Gtk.Box;         use Gtk.Box;
with Gtk.Button;      use Gtk.Button;
with Gtk.Label;       use Gtk.Label;
with Gtk.Widget;      use Gtk.Widget;
with Gtk.Main;
with Gtk.Window;      use Gtk.Window;
with Gtkada.Handlers; use Gtkada.Handlers;
with Ada.Text_IO;
with Glib; use Glib;
procedure Main is
   Win   : Gtk_Window;
   Label : Gtk_Label;
   Box   : Gtk_Vbox;
begin
   Gtk.Main.Set_Locale;
   Gtk.Main.Init;
   Gtk_New (Win);
   Win.Set_Default_Size (500, 500);
   Gtk_New_Vbox (Box);
   Gtk_New (Label, "Hello world.");
   Win.Add (Label);
   Win.Show_All;
   Gtk.Main.Main;
end Main;