# FIND_PACKAGE_HANDLE_STANDARD_ARGS(NAME (DEFAULT_MSG|"Custom failure message") VAR1 ... )

#    This macro is intended to be used in FindXXX.cmake modules files.

#    It handles the REQUIRED and QUIET argument to FIND_PACKAGE() and

#    it also sets the <UPPERCASED_NAME>_FOUND variable.

#    The package is found if all variables listed are TRUE.

#    Example:

#

#    FIND_PACKAGE_HANDLE_STANDARD_ARGS(LibXml2 DEFAULT_MSG LIBXML2_LIBRARIES LIBXML2_INCLUDE_DIR)

#

#    LibXml2 is considered to be found, if both LIBXML2_LIBRARIES and 

#    LIBXML2_INCLUDE_DIR are valid. Then also LIBXML2_FOUND is set to TRUE.

#    If it is not found and REQUIRED was used, it fails with FATAL_ERROR, 

#    independent whether QUIET was used or not.

#    If it is found, the location is reported using the VAR1 argument, so 

#    here a message "Found LibXml2: /usr/lib/libxml2.so" will be printed out.

#    If the second argument is DEFAULT_MSG, the message in the failure case will 

#    be "Could NOT find LibXml2", if you don't like this message you can specify

#    your own custom failure message there.

MACRO(FIND_PACKAGE_HANDLE_STANDARD_ARGS _NAME _FAIL_MSG _VAR1 )

  IF("${_FAIL_MSG}" STREQUAL "DEFAULT_MSG")

    IF (${_NAME}_FIND_REQUIRED)

      SET(_FAIL_MESSAGE "Could not find REQUIRED package ${_NAME}")

    ELSE (${_NAME}_FIND_REQUIRED)

      SET(_FAIL_MESSAGE "Could not find OPTIONAL package ${_NAME}")

    ENDIF (${_NAME}_FIND_REQUIRED)

  ELSE("${_FAIL_MSG}" STREQUAL "DEFAULT_MSG")

    SET(_FAIL_MESSAGE "${_FAIL_MSG}")

  ENDIF("${_FAIL_MSG}" STREQUAL "DEFAULT_MSG")

  STRING(TOUPPER ${_NAME} _NAME_UPPER)

  SET(${_NAME_UPPER}_FOUND TRUE)

  IF(NOT ${_VAR1})

    SET(${_NAME_UPPER}_FOUND FALSE)

  ENDIF(NOT ${_VAR1})

  FOREACH(_CURRENT_VAR ${ARGN})

    IF(NOT ${_CURRENT_VAR})

      SET(${_NAME_UPPER}_FOUND FALSE)

    ENDIF(NOT ${_CURRENT_VAR})

  ENDFOREACH(_CURRENT_VAR)

  IF (${_NAME_UPPER}_FOUND)

    IF (NOT ${_NAME}_FIND_QUIETLY)

        MESSAGE(STATUS "Found ${_NAME}: ${${_VAR1}}")

    ENDIF (NOT ${_NAME}_FIND_QUIETLY)

  ELSE (${_NAME_UPPER}_FOUND)

    IF (${_NAME}_FIND_REQUIRED)

        MESSAGE(FATAL_ERROR "${_FAIL_MESSAGE}")

    ELSE (${_NAME}_FIND_REQUIRED)

      IF (NOT ${_NAME}_FIND_QUIETLY)

        MESSAGE(STATUS "${_FAIL_MESSAGE}")

      ENDIF (NOT ${_NAME}_FIND_QUIETLY)

    ENDIF (${_NAME}_FIND_REQUIRED)

  ENDIF (${_NAME_UPPER}_FOUND)

ENDMACRO(FIND_PACKAGE_HANDLE_STANDARD_ARGS)