TARGET_LINK_LIBRARIES(LineMatchingLib ${OpenCV_LIBS} arpack /usr/lib/x86_64-linux-gnu/libsuperlu.so arpack++)

[jessicajie]

hello! I have a question to ask you, I hope you can help me solve it. in CMakelists.txt: TARGET_LINK_LIBRARIES(LineMatchingLib ${OpenCV_LIBS} arpack /usr/lib/x86_64-linux-gnu/libsuperlu.so arpack++) Can you explain the meaning of this sentence ? An error occurred during the execution of this sentence.I have installed ARPACK, according to https://github.com/m-reuter/arpackpp. In the installation process, I only installed dependencies, LAPACK, BLAS, and ARPACK. I want to know how you installed the dependency SuperLU？Does it must be installed?

[xuefeng-cvr]

Thanks for your question, before you Build "LineMatchingLib", you have to install "libsuperlu", the original code contains this LIB, and when I remove this sentence, the step of Linking would be error, so I consider the code of matching depend on this library.

You can install this lib through "sudo apt-get install libsuperlu-dev" on your Ubuntu.

[jessicajie]

I follow your installation, but find：

$ sudo apt-get install libsuperlu-dev Reading package lists... Done Building dependency tree
Reading state information... Done E: Unable to locate package libsuperlu-dev

my ubuntu version is 14.04,so I tried to download and install, but I didn't know how to connect to this library"LineMatchingLib"?

I download and install: [SuperLU (Version 5.2.x)] --- https://github.com/xiaoyeli/superlu 我使用CMake安装： mkdir build cd build cmake .. make sudo make install 结果： libblas.a libsuperlu.a libmatgen.a

/usr/local/lib/libsuperlu.a /usr/local/lib/pkgconfig/superlu.pc /usr/local/include/supermatrix.h /usr/local/include/slu_Cnames.h /usr/local/include/slu_dcomplex.h /usr/local/include/slu_scomplex.h /usr/local/include/slu_util.h /usr/local/include/superlu_enum_consts.h /usr/local/include/slu_sdefs.h /usr/local/include/slu_ddefs.h /usr/local/include/slu_cdefs.h /usr/local/include/slu_zdefs.h

Thank you very much! I hope you give us some advice.

[xuefeng-cvr]

My Ubuntu version is 16.04

when you use libsuperlu.a, it would be some trouble, the terminal may shows that you have to use shared library, so you have to build a shared library, not static library.

if you installed libsuperlu，just use “TARGET_LINK_LIBRARIES(LineMatchingLib ${OpenCV_LIBS} arpack /usr/local/lib/libsuperlu.so arpack++)” as the CMakeList.txt shows，then when the LineMatchingLib built，it will link libsuperlu.so。

And use “TARGET_LINK_LIBRARIES(Test_Single_LMA LineMatchingLib ${OpenCV_LIBS})” as the CMakeList.txt shows，then when the Test_Single_LMA built，it will link LineMatchingLib。