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68 lines
2.7 KiB
CMake
68 lines
2.7 KiB
CMake
# FIND_PACKAGE_HANDLE_STANDARD_ARGS(NAME (DEFAULT_MSG|"Custom failure message") VAR1 ... )
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# This macro is intended to be used in FindXXX.cmake modules files.
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# It handles the REQUIRED and QUIET argument to FIND_PACKAGE() and
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# it also sets the <UPPERCASED_NAME>_FOUND variable.
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# The package is found if all variables listed are TRUE.
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# Example:
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#
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# FIND_PACKAGE_HANDLE_STANDARD_ARGS(LibXml2 DEFAULT_MSG LIBXML2_LIBRARIES LIBXML2_INCLUDE_DIR)
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#
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# LibXml2 is considered to be found, if both LIBXML2_LIBRARIES and
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# LIBXML2_INCLUDE_DIR are valid. Then also LIBXML2_FOUND is set to TRUE.
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# If it is not found and REQUIRED was used, it fails with FATAL_ERROR,
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# independent whether QUIET was used or not.
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# If it is found, the location is reported using the VAR1 argument, so
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# here a message "Found LibXml2: /usr/lib/libxml2.so" will be printed out.
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# If the second argument is DEFAULT_MSG, the message in the failure case will
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# be "Could NOT find LibXml2", if you don't like this message you can specify
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# your own custom failure message there.
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INCLUDE(FindPackageMessage)
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FUNCTION(FIND_PACKAGE_HANDLE_STANDARD_ARGS _NAME _FAIL_MSG _VAR1 )
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IF("${_FAIL_MSG}" STREQUAL "DEFAULT_MSG")
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SET(_FAIL_MESSAGE "Could NOT find ${_NAME}")
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ELSE("${_FAIL_MSG}" STREQUAL "DEFAULT_MSG")
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SET(_FAIL_MESSAGE "${_FAIL_MSG}")
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ENDIF("${_FAIL_MSG}" STREQUAL "DEFAULT_MSG")
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STRING(TOUPPER ${_NAME} _NAME_UPPER)
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# collect all variables which were not found, so they can be printed, so the
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# user knows better what went wrong (#6375)
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SET(MISSING_VARS "")
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SET(DETAILS "")
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SET(${_NAME_UPPER}_FOUND TRUE)
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IF(NOT ${_VAR1})
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SET(${_NAME_UPPER}_FOUND FALSE)
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SET(MISSING_VARS " ${_VAR1}")
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ELSE(NOT ${_VAR1})
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SET(DETAILS "${DETAILS}[${${_VAR1}}]")
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ENDIF(NOT ${_VAR1})
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# check if all passed variables are valid
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FOREACH(_CURRENT_VAR ${ARGN})
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IF(NOT ${_CURRENT_VAR})
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SET(${_NAME_UPPER}_FOUND FALSE)
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SET(MISSING_VARS "${MISSING_VARS} ${_CURRENT_VAR}")
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ELSE(NOT ${_CURRENT_VAR})
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SET(DETAILS "${DETAILS}[${${_CURRENT_VAR}}]")
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ENDIF(NOT ${_CURRENT_VAR})
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ENDFOREACH(_CURRENT_VAR)
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IF (${_NAME_UPPER}_FOUND)
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FIND_PACKAGE_MESSAGE(${_NAME} "Found ${_NAME}: ${${_VAR1}}" "${DETAILS}")
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ELSE (${_NAME_UPPER}_FOUND)
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IF (${_NAME}_FIND_REQUIRED)
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MESSAGE(FATAL_ERROR "${_FAIL_MESSAGE} (missing: ${MISSING_VARS})")
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ELSE (${_NAME}_FIND_REQUIRED)
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IF (NOT ${_NAME}_FIND_QUIETLY)
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MESSAGE(STATUS "${_FAIL_MESSAGE} (missing: ${MISSING_VARS})")
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ENDIF (NOT ${_NAME}_FIND_QUIETLY)
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ENDIF (${_NAME}_FIND_REQUIRED)
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ENDIF (${_NAME_UPPER}_FOUND)
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SET(${_NAME_UPPER}_FOUND ${${_NAME_UPPER}_FOUND} PARENT_SCOPE)
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ENDFUNCTION(FIND_PACKAGE_HANDLE_STANDARD_ARGS)
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