Mex compilation cannot find the library for linking?

Hello, I am building a Mex file and here is my linking command:

algosPath = '../../../../';
algosPath = '/home/myname/Algos/'
openCVIncludePath = ['-I' algosPath 'ThirdParty/OpenCV-2.4.1/include' ]
openCVLibPath = ['-L' algosPath 'ThirdParty/OpenCV-2.4.1/lib/Linux/' ]
ippIncludePath = ['-I' algosPath 'ThirdParty/Intel/IPP61/Linux/include' ]
ippLibPath1 = ['-L' algosPath 'ThirdParty/Intel/IPP61/Linux/lib' ]
ippLibPath2 = ['-L' algosPath 'ThirdParty/Intel/IPP61/Linux/sharedlib' ]

CC_3RD_PARTY_LIBS = ['-lopencv_highgui.so'];
mex('-v',openCVIncludePath, ippIncludePath,  openCVLibPath, CC_3RD_PARTY_LIBS, ippLibPath1, ippLibPath2, 'StrelMex.cpp')

I got the error:

-> g++ -c  -I/home/myname/Algos/ThirdParty/OpenCV-2.4.1/include -I/home/myname/Algos/ThirdParty/Intel/IPP61/Linux/include -I/usr/local/MATLAB/R2013a/extern/include -I/usr/local/MATLAB/R2013a/simulink/include -DMATLAB_MEX_FILE -ansi -D_GNU_SOURCE -fPIC -fno-omit-frame-pointer -pthread  -DMX_COMPAT_32 -O -DNDEBUG  "StrelMex.cpp"

 -> g++ -O -pthread -shared -Wl,--version-script,/usr/local/MATLAB/R2013a/extern/lib/glnxa64/mexFunction.map -Wl,--no-undefined -o  "StrelMex.mexa64"  StrelMex.o  -L/home/myname/Algos/ThirdParty/OpenCV-2.4.1/lib/Linux/ -llopencv_highgui.so -L/home/myname/Algos/ThirdParty/Intel/IPP61/Linux/lib -L/home/myname/Algos/ThirdParty/Intel/IPP61/Linux/sharedlib -Wl,-rpath-link,/usr/local/MATLAB/R2013a/bin/glnxa64 -L/usr/local/MATLAB/R2013a/bin/glnxa64 -lmx -lmex -lmat -lm

 /usr/lib64/gcc/x86_64-suse-linux/4.3/../../../../x86_64-suse-linux/bin/ld: cannot find -llopencv_highgui.so
 collect2: ld returned 1 exit status
 mex: link of ' "StrelMex.mexa64"' failed.

I have checked the folder: /home/myname/Algos/ThirdParty/OpenCV-2.4.1/lib/Linux/ and found that the lib libopencv_highgui.so existing there.

I don't what I miss here. Also the path /usr/lib64/gcc/x86_64-suse-linux/4.3/../../../../x86_64-suse-linux/bin/ld is pointing to no where in my computer.

Could you please help?

Thank you.

Answer 1

[Walter Roberson]

I suspect

CC_3RD_PARTY_LIBS = ['-lopencv_highgui.so'];

should be

CC_3RD_PARTY_LIBS = ['opencv_highgui.so'];