GTK Errors while building IIE Oscilloscope on Ubuntu

vladab63

on Nov 23, 2022

Category: Software

I am trying to build IIO Oscilloscope from source for weeks. I have followed this instruction step by step, several times: https://wiki.analog.com/resources/tools-software/linux-software/iio_oscilloscope#linux

I have ended with reinstalling my whole Ubuntu desktop due to reinstalling dependencies. As I read on previous solutions, I have checked out origin/master for both libiio and iio-oscilloscope.

I have tried changing GTK+ version in CMakeLists file, but with every version, I am getting color related errors. I have chosen to go with libgtk version 2 due to least number of errors, all of which were:

error: unknown type name ‘GdkRGBA’; did you mean ‘GdkGC’?
   99 |                                           GdkRGBA * color, guint size);
      |                                           ^~~~~~~
      |                                           GdkGC

I went through all files manually (/usr/include/gtkdatabox_grid.h, _points.h, _lines.h and _markers.h) and changed GdkRGBA to GdkGC. Now I am getting different errors about wrong struct type GdkColor * should be GdkGC * color etc etc...
What am I doing wrong and how to fix this? All packages are fresh and updated.

In the end, I have multiple versions of GTK+:

i  libgtk-3-0:amd64           3.24.33-1ubuntu2  amd64        GTK graphical user interface library
ii  libgtk-3-bin               3.24.33-1ubuntu2  amd64        programs for the GTK graphical user interface library
ii  libgtk-3-common            3.24.33-1ubuntu2  all          common files for the GTK graphical user interface library
ii  libgtk-3-dev:amd64         3.24.33-1ubuntu2  amd64        development files for the GTK library
ii  libgtk-4-1:amd64           4.6.6+ds-0ubuntu1 amd64        GTK graphical user interface library
ii  libgtk-4-bin               4.6.6+ds-0ubuntu1 amd64        programs for the GTK graphical user interface library
ii  libgtk-4-common            4.6.6+ds-0ubuntu1 all          common files for the GTK graphical user interface library
ii  libgtk-4-dev:amd64         4.6.6+ds-0ubuntu1 amd64        development files for the GTK library
ii  libgtk2.0-0:amd64          2.24.33-2ubuntu2  amd64        GTK graphical user interface library - old version
ii  libgtk2.0-bin              2.24.33-2ubuntu2  amd64        programs for the GTK graphical user interface library
ii  libgtk2.0-common           2.24.33-2ubuntu2  all          common files for the GTK graphical user interface library
ii  libgtk2.0-dev:amd64        2.24.33-2ubuntu2  amd64        development files for the GTK library

Thank you so much for your time and help

Top Replies

0 DNechita

on Nov 24, 2022 5:45 AM
Hi! You're not doing anything wrong. IIO-Oscilloscope depends GTK2 and on libgtkdatabox (for GTK2). On newer Ubuntu images (such as 22.04) libgtkdatabox for GTK2 is no longer available, being replaced with a version for GTK3. Because of this the entire build process of IIO-Oscilloscope is forced to use GTK3. We're close to finishing migrating IIO-Oscilloscope to GTK3.

There is a branch where the migration is being implemented but it's still work in progress.
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0 vladab63
on Nov 24, 2022 11:21 PM in reply to DNechita
Thank you very much for this, it was busting my head for a while. It crossed my mind that it is something about compatibility issues, but I just decided I am doing something wrong and went with it. I will be checking the merge to master and stable version. Thank you again
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0 jamesjjc
on Nov 29, 2022 7:07 PM in reply to DNechita
I encountered the same problem! So how should I solve this? I tried to install gtk2.0 on my Ubuntu 22.04 but it didn't work. thanks.
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0 mqa
on Jan 16, 2023 9:08 AM in reply to DNechita
Hi ! Just +1 ing this post to know where is the WIP at.I have the same issue and compiled iio-oscilloscope using the gtk3.0 master branch. But it has some segfault at runtime when I connect to a device. Thank you in advance !
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0 DNechita

on Feb 28, 2023 8:59 AM in reply to mqa
Hi,

The GTK3 version of iio-oscilloscope is now in main branch. You should be able to build it without issues.

However, if you encounter any issues, please let us know.
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0 nochenlu
on Mar 15, 2023 4:23 AM
I have downloaded the GTK3 version of iio-oscilloscope, but it did not work in version ubuntu 20.04.5 LTS.The error is still same.

/usr/include/gtkdatabox_graph.h:86:7: error: unknown type name ‘GdkGC’
86 | GdkGC* (*create_gc) (GtkDataboxGraph * graph, GtkDatabox * box);
| ^~~~~
In file included from /usr/include/gtkdatabox.h:24,
from /home/luke/space/microwave/iio-oscilloscope/osc.c:8:
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0 DNechita

on Mar 20, 2023 10:20 AM in reply to nochenlu
What is the version of libgtkdatabox that you have installed on your system?
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0 cgrant
on Mar 20, 2023 3:17 PM in reply to DNechita
I'm seeing the same errors on Ubuntu 20.04.6 LTS. I have this version of libgtkdatabox installed:

libgtkdatabox-dev/focal,now 1:0.9.3.1-1 amd64 [installed]
libgtkdatabox-doc/focal,focal 1:0.9.3.1-1 all
libgtkdatabox0-glade/focal 1:0.9.3.1-1 amd64
libgtkdatabox0-libglade/focal 1:0.9.3.1-1 amd64
libgtkdatabox0/focal,now 1:0.9.3.1-1 amd64 [installed,automatic]

I'm working from the main branch on this commit:

~/src/iio-oscilloscope$ git log
commit 9db346904250007acd69a63f629ff4c94d5e5801 (HEAD -> master, origin/master, origin/HEAD)
Author: Nuno Sá <nuno.sa@analog.com>
Date:   Wed Mar 8 13:39:29 2023 +0100

    filters: adrv9002: fix lte40 profile

    The LTE 40 profile was showing a smaller BW as expected (which is 38MHz).
    The reason is because TES by default sets the Analog Low Pass Filter at
    10MHz and it needs to be manually changed to 40MHz for the BW to be as
    bigger as expected.

    Signed-off-by: Nuno Sá <nuno.sa@analog.com>
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0 JMarques

on Mar 20, 2023 4:40 PM in reply to nochenlu
Hi, the latest libgtkdatabox in ubuntu 20.04.5 LTS is 0.9.3.1, which targets Gtk-2.

To run the Gtk-3 version, uninstall libgtkdatabox-dev with apt (recommended), and install version 1.0, which you can download the tar.gz from here sourceforge.net/projects/gtkdatabox/files/gtkdatabox-1/ (read INSTALL file for install instructions).
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0 ShawnMiller
on May 1, 2023 5:32 PM in reply to JMarques
This is the answer I was looking for.

Running Ubuntu 20.04.6 LTS, and installed gtk3 as required by cmake, but still got the compile errors referenced in the original post until I upgraded gtkdatabox to version 1.0 manually.
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