Eclipse CDT and OpenCV issue - c++

I'm trying to make OpenCV work in Eclipse CDT, provided that I'm using the following under Windows 7:
I have set the path for Includes under Cygwin C++ Compiler as follows: C:\OpenCV2.2\include\opencv
And, also set the path for Libraries under Cygwin Linker as follows: C:\OpenCV2.2\lib
When I try to build the project, I get the following two errors:
cannot find -lC:/OpenCV2.2/lib
make: *** [OpenCVDemo.exe] Error 1
Any ideas why am I getting that?
Thanks.

You need to add C:\OpenCV2.2\lib as a library path, not a library. Add libraries that you will use:
opencv_core
opencv_highgui
etc.
Also you may need to use include directory C:\OpenCV2.2\include\opencv2 and #include <opencv.hpp>.

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make (e=2): The system cannot find the file specified.
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if I put the library in the libraries folder and add it to the linker as I do with other libraries I get errors in compiling the project like undefined reference to 'glewExperimental' or Invalid arguments 'Candidates are:void glfwMakeContextCurrent(*)'
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I have been trying to use SFML in a CMake project, specifically the header SFML/Audio.hpp. I installed SMFL using Homebrew, and both the .dylib-files and the headers should be located correctly, in /usr/local/lib and /usr/local/include, respectively.
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This sounds like you simply forgot to add SFML's include directory. On Linux, they probably install SFML to some system path where GCC (or Clang) look by default, so they don't need any additional CMake directives.
Luckily, fixing this is pretty simple.
Add the following line to your CMakeLists.txt somewhere before defining targets:
include_directories(${SFML_INCLUDE_DIR})
The variable SFML_INCLUDE_DIR is populated when you successfully call find_package(SFML...).
While you're at it, you might also want to ensure to link to the proper library files in the correct order:
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Again, both variables are populated automatically.

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I have the latest version of boost (1.58). After building it via command line on windows:
bootstrap
.\b2
I add boost dir to path and boost/stage/lib to lib path.
I add #include to my code and when I compile I get an error saying:
Error 1 error LNK1104: cannot open file 'libboost_filesystem-vc120-mt-sgd-1_58.lib' E:\SourceControl\zombiegame\ZombieGame\Projects\Windows\LINK ZombieGame
I'm not including any lib myself so guessing boost is doing this via the code, but this file doesn't exist in the stage/lib path.
The closest I have is libboost_filesystem-vc120-mt-gd-1_58.lib but you can see it's -gd- not -sgd- like it's asking for. What am I missing here?
You are probably using a configuration that is not provided by boost. Boost build its libraries with different settings for Debug/Release and (here I think is the point) for Runtime library (static lib/dynamic dll/single threaded/multithread). From the names I would guess you have a static or single threaded config. Try to change that one and you should find one of those provided by boost build.

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I think I did not install fftw properly. I got .dll .lib and .h files in a folder but I don't know how to explain to CMake where is the library.
Specify additional paths for find_library to use.
See: http://www.cmake.org/cmake/help/v2.8.11/cmake.html#command:find_library
You will need to include the path to your custom FFTW installation.
A similar technique will need to be used when you use find_file to locate the headers
http://www.cmake.org/cmake/help/v2.8.11/cmake.html#command:find_file