Install problems on gentoo + fix

GNU Radio
1

Hi all.

Today I tried a fresh install of new master from the actual git
repository.

Everything compile well but make test gave the following errors:

1:qa_volk_test_all
146:qa_ofdm_txrx
161:qa_qtgui

1:
/home/schroer/gnuradiocomponents/gnuradio/build-3.7/volk/lib/test_all:
symbol lookup error:
/home/schroer/gnuradiocomponents/gnuradio/build-3.7/volk/lib/test_all:
undefined symbol: volk_16ic_s32f_deinterleave_real_32f_get_func_desc

Test time = 0.02 sec

Here I have no ideas.

=====================
2:
Traceback (most recent call last):
File
“/home/schroer/gnuradiocomponents/gnuradio/gr-digital/python/qa_ofdm_txrx.py”,
line 24, in
import scipy
ImportError: No module named scipy

Test time = 0.11 sec

Ok, scipy is not installed . So I think, this is not a real problem.

===============================

3:
Traceback (most recent call last):
File
“/home/schroer/gnuradiocomponents/gnuradio/gr-qtgui/python/qa_qtgui.py”,
line 24, in
import qtgui_swig as qtgui
File
“/home/schroer/gnuradiocomponents/gnuradio/build-3.7/gr-qtgui/swig/qtgui_swig.py”,
line 26, in
_qtgui_swig = swig_import_helper()
File
“/home/schroer/gnuradiocomponents/gnuradio/build-3.7/gr-qtgui/swig/qtgui_swig.py”,
line 22, in swig_import_helper
_mod = imp.load_module(’_qtgui_swig’, fp, pathname, description)
ImportError:
/home/schroer/gnuradiocomponents/gnuradio/build-3.7/gr-qtgui/lib/libgnuradio-qtgui-3.7.0git.so.0.0.0:
undefined symbol:
_ZNK7QwtPlot9drawItemsEP8QPainterRK6QRectFPK11QwtScaleMap

Test time = 0.17 sec

=======================================

This is a problem of gentoo, because it requires qtw5 and qwt6 to be
install.

The FindQwt.cmake finds the qwt-lib belonging to qwt5 but the qwt-lib
belonging to qwt6 is required.

The following patch solves the problem and should work on other systems,
too.

==============================================
diff --git a/cmake/Modules/FindQwt.cmake b/cmake/Modules/FindQwt.cmake
index eba3e64…0a8eab8 100644
— a/cmake/Modules/FindQwt.cmake
+++ b/cmake/Modules/FindQwt.cmake
@@ -18,7 +18,7 @@ find_path (QWT_INCLUDE_DIRS
)

find_library (QWT_LIBRARIES

  •   NAMES qwt qwt-qt4

  •   NAMES qwt6 qwt qwt-qt4
   HINTS
   ${CMAKE_INSTALL_PREFIX}/lib
   ${CMAKE_INSTALL_PREFIX}/lib64

=============================================

– Volker

2

On Wed, May 29, 2013 at 3:31 AM, Volker S. [email protected] wrote:

/home/schroer/gnuradiocomponents/gnuradio/build-3.7/volk/lib/test_all:
symbol lookup error:
/home/schroer/gnuradiocomponents/gnuradio/build-3.7/volk/lib/test_all:
undefined symbol: volk_16ic_s32f_deinterleave_real_32f_get_func_desc

I’m looking to this one.

ImportError: No module named scipy

It turns out this was an unneeded import (probably left over from
testing). I’ve removed it and will push shortly.

The FindQwt.cmake finds the qwt-lib belonging to qwt5 but the qwt-lib

belonging to qwt6 is required.

The following patch solves the problem and should work on other systems,
too.

Have you actually run the QT example programs after apply that patch and
recompiling?

3

Now directly running from the examples directory everything works. Looks
great
Am 29.05.2013 14:39, schrieb Volker S.:

4

Have you actually run the QT example programs after apply that patch and
recompiling?

pyqt_example_f.py and pyqt_time_f.py work after recompiling but
pyqt_example_c.py and pyqt_time_c.py fail with

 ss = open('dark.qss')

IOError: [Errno 2] Datei oder Verzeichnis nicht gefunden: ‘dark.qss’

5

On 05/29/2013 06:31 AM, Volker S. wrote:

Hi all.

Today I tried a fresh install of new master from the actual git repository.

On gentoo we have ebuilds for all of this… just so you know. We are
always happy when you report bugs though :slight_smile:

Thanks,
Zero

6

On Wed, May 29, 2013 at 8:43 AM, Volker S. [email protected] wrote:

Now directly running from the examples directory everything works. Looks
great

Yeah, was going to reply to this earlier, but you beat me to it. The
dark.qss is located in the directory of the examples, and they only
look at the current path for that file, so you need to be in there to
make them run.

Glad you got everything working! Thanks for the patches, too!

Tom

7

On Wed, May 29, 2013 at 5:39 AM, Volker S. [email protected] wrote:

Have you actually run the QT example programs after apply that patch
and

recompiling?

pyqt_example_f.py and pyqt_time_f.py work after recompiling but
pyqt_example_c.py and pyqt_time_c.py fail with

ss = open('dark.qss')

IOError: [Errno 2] Datei oder Verzeichnis nicht gefunden: ‘dark.qss’

Tom R. does most of our gr-qtgui work; I’m not as familiar with it.
I’ll pass this one off to him :slight_smile: