[CMake] FAQ

• Build Type

• cmake -DCMAKE_BUILD_TYPE=Debug/Release ..
   

• Dump all variables

    function(dump_cmake_variables)
      get_cmake_property(_variableNames VARIABLES)
      list (SORT _variableNames)
      foreach (_variableName ${_variableNames})
          if (ARGV0)
              unset(MATCHED)
              string(REGEX MATCH ${ARGV0} MATCHED ${_variableName})
              if (NOT MATCHED)
                  continue()
              endif()
          endif()
          message(STATUS "${_variableName}=${${_variableName}}")
      endforeach()
  endfunction()
    

• Q: 加了 link_directories, link 時仍找不到 library
• 確定 link_directories 指令加在 add_executable 之前
• "The command will apply only to targets created after it is called.
• Q: How to enable C++11?

• set(CMAKE_CXX_STANDARD 11)
  set(CMAKE_CXX_STANDARD_REQUIRED ON)
  

• 或是

  ADD_DEFINITIONS(
      -std=c++11 # or -std=c++0x
  )