Catch unit test library linking error - c++

Question

I am trying to use CATCH unit test suite linked below.
https://github.com/philsquared/Catch
However, I cannot succeed to make it right.
The main.cpp and test.cpp are as follows.
//main.cpp
#define CATCH_CONFIG_MAIN
#include "catch.hpp"
//test.cpp
#include "catch.hpp"
TEST_CASE("TESTTest", "") {
CHECK(1 != 2 );
}
When this two files are located in the same folder, I could get a desired result.
However, I moved the test.cpp to the subdirectory named test. It does not work anymore as expected but generates linking errors.
My cmake setting is described below.
project(catchTest)
cmake_minimum_required(VERSION 2.8)
file(GLOB_RECURSE INCS "./*.cpp")
add_executable(${PROJECT_NAME} main.cpp ${INCS})
include_directories(.)
file(GLOB_RECURSE INCS "./*.cpp") was added to include every cpp source files located in the subdirectories. and include_directories(.) was included to let them know the definition of catch.hpp.
I am pretty shure I've done something wrong but I don't know how to fix it.
Please advise me to solve this problem.
It was run on Windows, compiled using mingw gcc-4.9.1 and generated by cmake ninja generator.
EDIT : I added the first few lines of error messages.
FAILED: cmd.exe /c cd . && C:\MinGW\bin\g++.exe CMakeFiles/catchTest.dir/main.cpp.obj CMakeFiles/catchTest.dir/main.cpp.obj CMakeFiles/catchTest.dir/test/testTest.cpp.obj -o catchTest.exe -Wl,--out-implib,libcatchTest.dll.a -Wl,--major-image-version,0,--minor-image-version,0 -lkernel32 -luser32 -lgdi32 -lwinspool -lshell32 -lole32 -loleaut32 -luuid -lcomdlg32 -ladvapi32 && cd .
CMakeFiles/catchTest.dir/main.cpp.obj:main.cpp:(.text+0x0): multiple definition of `Catch::getResultCapture()'
CMakeFiles/catchTest.dir/main.cpp.obj:main.cpp:(.text+0x0): first defined here

Answer 1

Your CMakeLists.txt is wrong, it includes main twice. If you change the add_executable-statement like this it works for me:
add_executable(${PROJECT_NAME} main.cpp test.cpp )
Hope that helps.
Kim

Answer 2

You have to include the right catch.hpp. In the repository there are two different includes with the same name: One in include and one called single_include. Please ensure that you are using single_include.

Answer 3

When you see something like linking error from a header file library such as catch, it means you have set the include path incorrectly.
Use single_include not include.