set(summary_willbuild "")
set(summary_willnotbuild "")

macro(summary_add name test)
  if (${test})
    list(APPEND summary_willbuild ${name})
  else (${test})
    list(APPEND summary_willnotbuild "${name}")
  endif (${test})
endmacro(summary_add)

macro(summary_show_part variable title)
  list(LENGTH ${variable} _len)
  if (_len)
    message("")
    message(${title})
    message("-----------------------------------------------")
    foreach (_item ${${variable}})
      message("   ${_item}")
    endforeach (_item)
  endif (_len)
endmacro(summary_show_part)

macro(summary_show)
  summary_show_part(summary_willbuild "The following components will be built:")
  summary_show_part(summary_willnotbuild "The following components WILL NOT be built:")
  message("")
endmacro(summary_show)
