macro(SET_OPTION _NAME _DESC)

  list(APPEND ALLOPTIONS ${_NAME})

  if(${ARGC} EQUAL 3)

    set(_DEFLT ${ARGV2})

  else()

    set(_DEFLT OFF)

  endif()

  option(${_NAME} ${_DESC} ${_DEFLT})

endmacro()

macro(DEP_OPTION _NAME _DESC _DEFLT _DEPTEST _FAILDFLT)

  list(APPEND ALLOPTIONS ${_NAME})

  cmake_dependent_option(${_NAME} ${_DESC} ${_DEFLT} ${_DEPTEST} ${_FAILDFLT})

endmacro()

macro(OPTION_STRING _NAME _DESC _VALUE)

  list(APPEND ALLOPTIONS ${_NAME})

  set(${_NAME} ${_VALUE} CACHE STRING "${_DESC}")

  set(HAVE_${_NAME} ${_VALUE})

ENDMACRO()

# Message Output

macro(MESSAGE_WARN _TEXT)

  message(STATUS "*** WARNING: ${_TEXT}")

endmacro()

macro(MESSAGE_ERROR _TEXT)

  message(FATAL_ERROR "*** ERROR: ${_TEXT}")

endmacro()

macro(MESSAGE_BOOL_OPTION _NAME _VALUE)

  if(${_VALUE})

    message(STATUS "  ${_NAME}:\tON")

  else()

    message(STATUS "  ${_NAME}:\tOFF")

  endif()

endmacro()

macro(MESSAGE_TESTED_OPTION _NAME)

  set(_REQVALUE ${${_NAME}})

  set(_PAD " ")

  if(${ARGC} EQUAL 2)

    set(_PAD ${ARGV1})

  endif()

  if(NOT HAVE_${_NAME})

    set(HAVE_${_NAME} OFF)

  elseif("${HAVE_${_NAME}}" MATCHES "1|TRUE|YES|Y")

    set(HAVE_${_NAME} ON)

  endif()

  message(STATUS "  ${_NAME}${_PAD}(Wanted: ${_REQVALUE}): ${HAVE_${_NAME}}")

endmacro()

macro(LISTTOSTR _LIST _OUTPUT)

  if(${ARGC} EQUAL 3)

    # prefix for each element

    set(_LPREFIX ${ARGV2})

  else()

    set(_LPREFIX "")

  endif()

  # Do not use string(REPLACE ";" " ") here to avoid messing up list

  # entries

  foreach(_ITEM ${${_LIST}})

    set(${_OUTPUT} "${_LPREFIX}${_ITEM} ${${_OUTPUT}}")

  endforeach()

endmacro()

macro(CHECK_OBJC_SOURCE_COMPILES SOURCE VAR)

  set(PREV_REQUIRED_DEFS "${CMAKE_REQUIRED_DEFINITIONS}")

  set(CMAKE_REQUIRED_DEFINITIONS "-x objective-c ${PREV_REQUIRED_DEFS}")

  CHECK_C_SOURCE_COMPILES(${SOURCE} ${VAR})

  set(CMAKE_REQUIRED_DEFINITIONS "${PREV_REQUIRED_DEFS}")

endmacro()