macro(ADD_PO4A_POT_TARGET FILES DOMAIN TYPE OPTIONS)

  set(_FILES ${FILES})
  separate_arguments(_FILES)

  set(_OPTIONS ${OPTIONS})
  separate_arguments(_OPTIONS)

  set(_FILE_OPTION)
  foreach(FILE ${_FILES})
    file(RELATIVE_PATH _REL_FILE ${CMAKE_CURRENT_SOURCE_DIR} ${FILE} )
    list(APPEND _FILE_OPTION -m ${_REL_FILE})
  endforeach(FILE ${FILES})

  add_custom_command(OUTPUT ${DOMAIN}.pot
                    COMMAND ${PO4A_GETTEXTTIZE_EXECUTABLE}
                    -f ${TYPE} ${_OPTIONS} ${_FILE_OPTION} -p ${DOMAIN}.pot
                    DEPENDS ${FILES}
                    WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR})

  add_custom_target(update-pot-${DOMAIN} DEPENDS ${DOMAIN}.pot)
  add_dependencies(update-pot update-pot-${DOMAIN})
endmacro(ADD_PO4A_POT_TARGET FILES DOMAIN)


macro(ADD_PO4A_TRANSLATE_TARGET INFILE OUTFILE STAMPFILE DOMAIN FORMAT CHARSET OPTIONS)
  set(_LINGUAS ${ARGN})
  set(_OPTIONS ${OPTIONS})
  separate_arguments(_OPTIONS)
  string(REGEX REPLACE ".*/([^ /]*)$" "\\1" _FILENAME ${INFILE})

  set(_PO4AFILES)
  foreach(_LANG ${_LINGUAS})
    set(_POFILE ${_LANG}.po)
    set(LANG ${_LANG})
    string(CONFIGURE ${OUTFILE} _OUTFILE)
    string(CONFIGURE ${STAMPFILE} _STAMPFILE)
    set(LANG)

    set(_CHARSET ${${CHARSET}_${_LANG}})
    if(NOT _CHARSET)
      set(_CHARSET ${${CHARSET}_default})
      if(NOT _CHARSET)
        set(_CHARSET "utf-8")
      endif(NOT _CHARSET)
    endif(NOT _CHARSET)

    set_source_files_properties(${_POFILE} PROPERTIES GENERATED TRUE)

    add_custom_command(OUTPUT "${_STAMPFILE}"
                       COMMAND ${PO4A_TRANSLATE_EXECUTABLE}
                       -f ${FORMAT} ${_OPTIONS} -L ${_CHARSET} -m ${INFILE} -p "${_POFILE}" -l "${_OUTFILE}"
                       COMMAND ${CMAKE_COMMAND} -E touch "${_STAMPFILE}"
                       MAIN_DEPENDENCY "${_POFILE}"
                       WORKING_DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}")
  
    list(APPEND _PO4AFILES ${_STAMPFILE})
  endforeach(_LANG ${_LINGUAS})

  add_custom_target(update-po4a-${_FILENAME} DEPENDS ${_PO4AFILES})
  
endmacro(ADD_PO4A_TRANSLATE_TARGET INFILE OUTFILE DOMAIN FORMAT OPTIONS)