__MIC__ macro does not work

Hello everyone,

           To solve problems like this:   undefined reference to `_mm512_xxx_xxx(), I have added __MIC__ macro into my code.(https://software.intel.com/en-us/comment/1726413#comment-1726413)

          But, these code between the

#ifdef __MIC__   

xxxx

xxxx

#endif

         never won't be executed.   

         _________________________________________________________________________________

        as the picture showing , the printf() fucntion never won't be executed.

              Thank you!