cmake HAVE_IS_TRIVIALLY_COPYABLE examples

bareos/bareos core/CMakeLists.txt :527 

try_compile(
  HAVE_IS_TRIVIALLY_COPYABLE ${CMAKE_BINARY_DIR}/compile_tests
  ${PROJECT_SOURCE_DIR}/src/compile_tests/trivially_copyable.cc
)

bareos/bareos core/CMakeLists.txt :787 

message("   HAVE_IS_TRIVIALLY_COPYABLE:   ${HAVE_IS_TRIVIALLY_COPYABLE}")