cmake KWSYS_C_HAS_MACRO___ examples

Kitware/kwiver vital/kwiversys/CMakeLists.txt :403 

ELSEIF(KWSYS_C_HAS_MACRO___${type}_MAX__)

gccxml/gccxml GCC_XML/KWSys/CMakeLists.txt :441 

ELSEIF(KWSYS_C_HAS_MACRO___${type}_MAX__)