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From: "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de>
Subject: Re: Bug in GtkAda
Newsgroups: comp.lang.ada
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Date: Fri, 16 Oct 2009 09:33:04 +0200
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Date: 2009-10-16T09:33:03+02:00
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On Thu, 15 Oct 2009 18:22:49 -0700 (PDT), RasikaSrinivasan@gmail.com wrote:

> I have a piece of code that reads :
> --------------------
>       Gtk.Text_Attributes.Gtk_New(Special_Atr);
>       Gdk.Color.Set_Rgb( Fg , 16#Ffff# , 0 , 0 ) ;
>       Gtk.Text_Attributes.Set_Fg_Color
> (Gtk.Text_Attributes.Get_Appearance(Special_Atr),Fg);
> ---------------
> 
> I am getting the following error while linking:
> 
> C:\Projects\Gtk\regexp>gprbuild -p -Pregexp
> creating auto.cgpr
> gcc -c -g -gnat05 -gnata regexp_widgets.adb
> regexp_widgets.adb:41:04: warning: variable "Normal_Atr" is never read
> and never assigned
> regexp_widgets.adb:126:07: warning: variable "Searchbtn" is never read
> and never assigned
> gprbind regexp.bexch
> gnatbind regexp.ali
> gcc -c b__regexp.adb
> gcc regexp.o -L/minsk.a/gnatmail/gcc-43/build-minsk/gtkada/install/lib/
> gtkada/static -Wl,-luuid -L/minsk.a/gnatmail/gcc-43/install-minsk/gtk/
> lib -L/unix/gtk+gps/
> gimpwin-dev/lib -lgtk-win32-2.0 -lgdk-win32-2.0 -limm32 -lshell32 -
> lole32 -latk-1.0 -lgdk_pixbuf-2.0 -ljpeg -lpng -lpangocairo-1.0 -
> lcairo -lpangowin32-1.0 -lgdi
> 32 -lpango-1.0 -lm -lgobject-2.0 -lgmodule-2.0 -lglib-2.0 -lintl -
> luser32 -Lc:\gnat\2009\gtkada\lib\gnat\.. -Lc:\gnat\2009\gtkada\lib
> \gnat\../../include/gtkada -
> o regexp.exe
> c:\projects\gtk\regexp\.objs\regexp_widgets.o: In function
> `regexp_widgets__make':
> c:/projects/gtk/regexp/regexp_widgets.adb:180: undefined reference to
> `_ada_text_attribute_get_appearance'
> collect2: ld returned 1 exit status
> gprbuild: link of regexp.adb failed
> 
> ------------------------------------------
> Sounds like a bug to me. Any ideas?

I don't see linking your program with libgtkada.a. You probably have some
problem either in the project file or else in the GtkAda installation.

BTW. There is an advanced text editor in Gtk:

http://projects.gnome.org/gtksourceview

on top of the Gtk.Text_View, with an integrated language syntax
highlighting, undo buffer etc.

-- 
Regards,
Dmitry A. Kazakov
http://www.dmitry-kazakov.de