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

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

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

     4 #    it also sets the <UPPERCASED_NAME>_FOUND variable.

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

     6 #    Example:

     7 #

     8 #    FIND_PACKAGE_HANDLE_STANDARD_ARGS(LibXml2 DEFAULT_MSG LIBXML2_LIBRARIES LIBXML2_INCLUDE_DIR)

     9 #

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

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

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

    13 #    independent whether QUIET was used or not.

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

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

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

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

    18 #    your own custom failure message there.

    19 

    20 MACRO(FIND_PACKAGE_HANDLE_STANDARD_ARGS _NAME _FAIL_MSG _VAR1 )

    21 

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

    23     IF (${_NAME}_FIND_REQUIRED)

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

    25     ELSE (${_NAME}_FIND_REQUIRED)

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

    27     ENDIF (${_NAME}_FIND_REQUIRED)

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

    29     SET(_FAIL_MESSAGE "${_FAIL_MSG}")

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

    31 

    32   STRING(TOUPPER ${_NAME} _NAME_UPPER)

    33 

    34   SET(${_NAME_UPPER}_FOUND TRUE)

    35   IF(NOT ${_VAR1})

    36     SET(${_NAME_UPPER}_FOUND FALSE)

    37   ENDIF(NOT ${_VAR1})

    38 

    39   FOREACH(_CURRENT_VAR ${ARGN})

    40     IF(NOT ${_CURRENT_VAR})

    41       SET(${_NAME_UPPER}_FOUND FALSE)

    42     ENDIF(NOT ${_CURRENT_VAR})

    43   ENDFOREACH(_CURRENT_VAR)

    44 

    45   IF (${_NAME_UPPER}_FOUND)

    46     IF (NOT ${_NAME}_FIND_QUIETLY)

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

    48     ENDIF (NOT ${_NAME}_FIND_QUIETLY)

    49   ELSE (${_NAME_UPPER}_FOUND)

    50     IF (${_NAME}_FIND_REQUIRED)

    51         MESSAGE(FATAL_ERROR "${_FAIL_MESSAGE}")

    52     ELSE (${_NAME}_FIND_REQUIRED)

    53       IF (NOT ${_NAME}_FIND_QUIETLY)

    54         MESSAGE(STATUS "${_FAIL_MESSAGE}")

    55       ENDIF (NOT ${_NAME}_FIND_QUIETLY)

    56     ENDIF (${_NAME}_FIND_REQUIRED)

    57   ENDIF (${_NAME_UPPER}_FOUND)

    58 ENDMACRO(FIND_PACKAGE_HANDLE_STANDARD_ARGS)