cmake HAVE_LINK_EXCLUDE_LIBS examples

ceph/ceph cmake/modules/CephChecks.cmake :201 

try_compile(HAVE_LINK_EXCLUDE_LIBS
  ${CMAKE_CURRENT_BINARY_DIR}
  SOURCES ${CMAKE_CURRENT_LIST_DIR}/CephCheck_link.c
  LINK_LIBRARIES "-Wl,--exclude-libs,ALL")