CMakeList.txts: transfer from cmake to catkin_make

edit

Hi,

I'm trying to transfer the opentld program into ROS package.

What I'm trying now is

1. init a catkin package
2. copy the content of opentld into src folder of catkin package
3. copy the folder 3rdparty and libopentld into include folder of catkin package

4. modify the CMakeLists.txt file in catkin package according to the CMakeLists.txt of TLD program

   4.1. add the include_directories

   4.2. add the add_library

   4.3 add the if(BUILD_QOPENTLD)

Then I use catkin_make and no library or file missing is reported, but there are many errors about undefined reference when linking.

####
#### Running command: "make cmake_check_build_system" in "/home/aqua/catkin/build"
####
####
#### Running command: "make -j4 -l4" in "/home/aqua/catkin/build"
####
Linking CXX executable /home/aqua/catkin/devel/lib/tld/tld_node
Linking CXX shared library /home/aqua/catkin/devel/lib/libsrc/main.so
/usr/bin/ld: cannot open output file /home/aqua/catkin/devel/lib/libsrc/main.so: No such file or directory
collect2: ld returned 1 exit status
make[2]: *** [/home/aqua/catkin/devel/lib/libsrc/main.so] Error 1
make[1]: *** [tld/CMakeFiles/src/main.dir/all] Error 2
make[1]: *** Waiting for unfinished jobs....
/usr/lib/gcc/i686-linux-gnu/4.6/../../../i386-linux-gnu/crt1.o: In function `_start':
(.text+0x18): undefined reference to `main'
CMakeFiles/tld_node.dir/src/main/Main.cpp.o: In function `Main::doWork()':
Main.cpp:(.text+0x29): undefined reference to `tld::Trajectory::Trajectory()'
Main.cpp:(.text+0x3a): undefined reference to `imAcqGetImg(ImAcq*)'
Main.cpp:(.text+0x88): undefined reference to `cv::_OutputArray::_OutputArray(cv::Mat&)'

...

can anyone give me some idea what to do next?

Thanks.

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

Thanks @ahendrix for helping me with the link problem. I should add the target_link_libraries command. But now it becomes:

[ 85%] Building CXX object tld/CMakeFiles/tld.dir/src/main/Trajectory.cpp.o
Linking CXX shared library /home/aqua/catkin/devel/lib/libtld.so

/usr/bin/ld: cannot find -llibopentld
/usr/bin/ld: cannot find -lcvblobs

I don't think I need to build the share library in the /usr/lib since the original doesn't do that. It should also be a makefile problem.

The original is: include_directories(main ../libopentld/imacq ../libopentld/mftracker ../libopentld/tld ../3rdparty/cvblobs ${OpenCV_INCLUDE_DIRS})

add_library(main
    main/Config.cpp
    main/Gui.cpp
    main/Main.cpp

what I did:

include_directories(tld
    include/libopentld/imacq
    include/libopentld/mftracker
    include/libopentld/tld
    include/3rdparty/cvblobs
    ${OpenCV_INCLUDE_DIRS}
    ${catkin_INCLUDE_DIRS})

add_library(tld
    src/main/Config.cpp
    src/main/Gui.cpp
    src/main/Main.cpp
    src/main/Settings.cpp

what the original is:

target_link_libraries(main libopentld cvblobs config++ ${OpenCV_LIBS})

add_executable(opentld
    OpenTLD.cpp)

target_link_libraries(opentld main libopentld cvblobs config++ ${OpenCV_LIBS})

what I did:

target_link_libraries(tld libopentld cvblobs config++ ${OpenCV_LIBS} ${catkin_LIBRARIES})

add_executable(opentld
    src/OpenTLD.cpp)

target_link_libraries(opentld tld libopentld cvblobs config++ ${OpenCV_LIBS})

I believe there should be some issues here but I tried some code change but still get the error.