cmake FRUIT_HAS_IS_TRIVIALLY_COPYABLE examples

google/fruit configuration/CMakeLists.txt :60 

CHECK_CXX_SOURCE_COMPILES("
int main() {
  bool b = __is_trivially_copyable(int);
  (void) b;
  return 0;
}
"
FRUIT_HAS_IS_TRIVIALLY_COPYABLE)