[CMake] CMAKE -- MAKE problem -- TARGET_LINK_LIBRARIES related

[Lucian Goron]

this is my problem.. it tells me that it can not find the levmar package:

lucian at schwarz:~/work/ransac$ make
Linking CXX executable TestAcquireGPS
/usr/bin/ld: cannot find -llevmar
collect2: ld returned 1 exit status
make[2]: *** [TestAcquireGPS] Error 1
make[1]: *** [CMakeFiles/TestAcquireGPS.dir/all] Error 2
make: *** [all] Error 2
lucian at schwarz:~/work/ransac$

but, in my CMakeLists.txt file I have the following lines:

INCLUDE_DIRECTORIES (../common/levmar)
LINK_DIRECTORIES (../../common/levmar)

ADD_EXECUTABLE (TestAcquireGPS TestAcquireGPS.cpp
        AcquireGPS.cpp)
TARGET_LINK_LIBRARIES (TestAcquireGPS vtkCommon vtkRendering vtkWidgets
vtkHybrid vtkGraphics ann lapack levmar)

What am I missing ?
Thank you in advance !
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