search - How to include an additional CMakeLists.txt -

Say that we have the command call foo in CMakeLists.txt which is the folder / A .

foo is defined in the antirection CMakeLists.txt in the folder / B .

How to call foo from /B/CemakeLists.txt within / A / CemakeLists.txt Can be a reference

I tried to set the search path through / B / CemakeLists.txt :

• CMAKE_INCLUDE_PATH
• CMAKE_MODULE_PATH
• CMAKE_SOURCE_DIR

  But none of these works.

  Still complained unknown CMake command "foo"

  this A / CMKelist Txt

    function (foo) message (status "heya") end ()        Code>  
   B / CMKelist Content of Txt  
    Semicamini Mum_required (version 2.8) includes ($ {CMAKE_CURRENT_SOURCE_DIR} /../A / CMakeLists.txt) foo ()   
   Now, everything else in that file, along with another CMakeLists.txt, can also be avoided if you have goals in B / CMKellists Tx   
  , if you have your code If you can modify, then it would be better to define your tasks in the "top level" CMakeLists.txt  add_sub directory .