compiling code with opencv - /usr/bin/ld: cannot find -lippicv

Question

When compiling some code with opencv I get this error

# g++ txtbin-03.1.cpp -o txtbin `pkg-config opencv --cflags --libs`
/usr/bin/ld: cannot find -lippicv
collect2: error: ld returned 1 exit status

installing opencv

# apt-get install cmake git libgtk2.0-dev pkg-config libavcodec-dev libavformat-dev libswscale-dev
# apt-get install libtbb2 libtbb-dev libjpeg-dev libpng-dev libtiff-dev libjasper-dev libdc1394-22-dev
# cd /var/bin && git clone https://github.com/Itseez/opencv.git && cd opencv
# cmake . && make -j2 && make install

Did you check this question and answers? http://stackoverflow.com/questions/25726768/opencv-3-0-trouble-with-installation — akhisp, Dec 21 '15 at 19:04

score 15 · Answer 1 · answered Jan 18 '16 at 16:39

15

In my case, all it took was to copy libippicv.a from the OpenCV SDK to /usr/local/lib:

sudo cp 3rdparty/ippicv/unpack/ippicv_lnx/lib/intel64/libippicv.a /usr/local/lib/

answered Jan 18 '16 at 16:39

iowarod

151
3

this should be the best fix. – Oct 12 '17 at 17:01

score 5 · Answer 2 · answered Apr 22 '16 at 07:36

Recompiling whole library isn't necessary, especially if you don't need this library. I found great and instantly working solution here. In case link expired or broke:

The solution is simply to remove -lippicv from opencv pkg-config configuration file. So you have to locate opencv.pc file, which default is in /usr/local/lib/pkgconfig/ directory. Then from section Libs: just remove aforementioned library.

Dipak D Desai · Accepted Answer · 2015-12-22T11:20:53.837

4

Recompile OpenCv using following option:

cmake -DWITH_IPP=ON . && make -j $(nproc) && make install

edited Dec 22 '15 at 11:20

answered Dec 22 '15 at 05:28

Dipak D Desai

867
1
8
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Where to add the line? Cant find `TARGET_LINK_LIBRARIES(` or any of the other lines arround – clarkk Dec 22 '15 at 10:08
Are you compiling openCV ? – Dipak D Desai Dec 22 '15 at 10:14
Yup, so during compilation have you on lippicv library – Dipak D Desai Dec 22 '15 at 10:26
Compile OpenCv with option : WITH_IPP=ON – Dipak D Desai Dec 22 '15 at 10:28
but I cant find where to add the line to `CMakeLists.txt:`.... When I search the text file I cant find `TARGET_LINK_LIBRARIES` – clarkk Dec 22 '15 at 10:29
First tried to compile OpvenCv with option "WITH_IPP=ON" and check if you got error or Not ? – Dipak D Desai Dec 22 '15 at 10:31
If you successfully done, than did not edit CMakeLists.txt. Which version of OpenCv you used? – Dipak D Desai Dec 22 '15 at 10:42
Let us [continue this discussion in chat](http://chat.stackoverflow.com/rooms/98675/discussion-between-dipak-d-desai-and-clarkk). – Dipak D Desai Dec 22 '15 at 10:45

H.B · Answer 4 · 2016-01-28T14:28:04.223

0

libippicv.a is a third party library, so you need to explicitly provide it during compilation or make it part of your execution environment.

It is located in ~/OpenCV/opencv-3.1.0/3rdparty/ippicv/unpack/ippicv_lnx/lib/intel64/

Also, provide cmake -DWITH_IPP=ON at the time of Makefile generation.

edited Jan 28 '16 at 14:28

answered Jan 28 '16 at 13:44

H.B

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score 0 · Answer 5 · edited Jun 22 '17 at 04:44

I was running into the same problem while trying to install the opencv_contrib repository (opencv-3.1.0/Ubuntu 16.04), and none of the solutions worked (I tried to make OpenCV with flag WITH_IPP=ON, but somehow OpenCV 3.1.0 failed to download the ippicv library(?) and there was no error prompt so I only figured this out when I tried to locate ippicv in terminal).

My solution was to download another OpenCV build (3.0.0 worked for me), make + make install with flag WITH_IPP=ON, and then copy the downloaded ippicv library (which should be located in /usr/local/share/OpenCV/3rdparty/lib/libippicv.a by now) to /usr/local/lib/.

I don't know if this is a known bug in OpenCV 3.1.0, but this one is definitely worth keeping an eye out for.

compiling code with opencv - /usr/bin/ld: cannot find -lippicv

installing opencv

5 Answers5

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