On Wed, May 4, 2011 at 1:12 AM, Markus
Eich
<markus.eich@dfki.de>
wrote:
I solved the issue.
Inorder to build ROS from source under Natty I just applied
this modified patch (copied it to the opencv2 folder) and
added the line
SVN_PATCH = pythontest.patch v4l_2.6.38.patch
to the Makefile.
The Opencv package now builds with Natty (but i guess not with
older Ubuntu anymore ;-)
Make sure that libv4l-dev is installed.
Cheers,
Markus
On 03.05.2011 22:41, Markus Eich wrote:
Dear all,
I am facing a problem with compiling the ROS sources
under Natty.
While building the opencv2 package, I got the following
linking error:
==============================
Linking CXX static library
../../lib/libopencv_haartraining_engine.a
[ 80%] Built target opencv_haartraining_engine
Scanning dependencies of target opencv_createsamples
[ 80%] Building CXX object
modules/haartraining/CMakeFiles/opencv_createsamples.dir/createsamples.o
Linking CXX executable ../../bin/opencv_createsamples
../../lib/libopencv_highgui.so.2.2.0: undefined
reference to
`cvCreateCameraCapture_V4L(int)'
collect2: ld returned 1 exit status
make[2]: *** [bin/opencv_createsamples] Fehler 1
make[1]: ***
[modules/haartraining/CMakeFiles/opencv_createsamples.dir/all]
Fehler 2
==============================
It seems it has to do with the linking of V4L. I have
the lib4vl-dev
package installed.
According to my prior web search there seems to be the
issue that V4L
has moved out of the kernel source.
Do you have any clues?
Cheers,
Markus
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--
Dipl. Inf. Markus Eich
Researcher
DFKI Bremen
Robotics Innovation Center
Mary-Somerville-Str. 9
28359 Bremen, Germany
Phone: +49 (0)421
17845-4105
Fax: +49 (0)421
17845-4150
E-Mail: markus.eich@dfki.de
Weitere Informationen: http://www.dfki.de/robotik
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