some gists for CMake

CMake gists.txt

# Switch between compilers
if ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang")
  # using Clang
elseif ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU")
  # using GCC
elseif ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "Intel")
  # using Intel C++
elseif ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "MSVC")
  # using Visual Studio C++
endif()

#For CUDA and GCC/MSVC
if(CUDA_FOUND AND ((MSVC AND WIN32) OR (UNIX AND CMAKE_COMPILER_IS_GNUCC )))
    set(CUDA_NVCC_FLAGS ${CUDA_NVCC_FLAGS};-O3 -gencode arch=compute_20,code=sm_21)
    cuda_add_executable(${PROJECT_NAME} ${SRC_LIST} ${CUDAHEADERS} ${CUDASOURCES})
    target_link_libraries(${PROJECT_NAME} ${CUDA_LIBRARIES})
else(CUDA_FOUND)
    add_executable(${PROJECT_NAME} ${SRC_LIST})
endif()

#GTest on GCC and MSVC
if ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU")
    set(GTEST_MAIN_LIBRARY "${GTEST_ROOT}/bin/libgtest_main.a")
    set(GTEST_LIBRARY "${GTEST_ROOT}/bin/libgtest.a")
elseif ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "MSVC")
message(${CMAKE_BUILD_TYPE})
    if(${CMAKE_BUILD_TYPE} STREQUAL "Release")
        set(GTEST_MAIN_LIBRARY "${GTEST_ROOT}/bin/gtest_main-md.lib")
        set(GTEST_LIBRARY "${GTEST_ROOT}/bin/gtest.lib")
    else()
        set(GTEST_MAIN_LIBRARY "${GTEST_ROOT}/bin/gtest_main-mdd.lib")
        set(GTEST_LIBRARY "${GTEST_ROOT}/bin/gtestd.lib")
    endif()
endif()

Variables:
http://www.cmake.org/Wiki/CMake_Useful_Variables