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+# - Macros for generating a summary of enabled/disabled features
+#
+# This module provides the macros feature_summary(), set_package_properties() and
+# add_feature_info().
+# For compatibility it also still provides set_package_info(), set_feature_info(),
+# print_enabled_features() and print_disabled_features().
+#
+# These macros can be used to generate a summary of enabled and disabled
+# packages and/or feature for a build tree:
+#
+# -- The following OPTIONAL packages have been found:
+# LibXml2 (required version >= 2.4) , XML processing library. , <http://xmlsoft.org>
+# * Enables HTML-import in MyWordProcessor
+# * Enables odt-export in MyWordProcessor
+# PNG , A PNG image library. , <http://www.libpng.org/pub/png/>
+# * Enables saving screenshots
+# -- The following OPTIONAL packages have not been found:
+# Lua51 , The Lua scripting language. , <http://www.lua.org>
+# * Enables macros in MyWordProcessor
+# Foo , Foo provides cool stuff.
+#
+#
+# FEATURE_SUMMARY( [FILENAME <file>]
+# [APPEND]
+# [VAR <variable_name>]
+# [INCLUDE_QUIET_PACKAGES]
+# [FATAL_ON_MISSING_REQUIRED_PACKAGES]
+# [DESCRIPTION "Found packages:"]
+# WHAT (ALL | PACKAGES_FOUND | PACKAGES_NOT_FOUND
+# | ENABLED_FEATURES | DISABLED_FEATURES]
+# )
+#
+# The FEATURE_SUMMARY() macro can be used to print information about enabled
+# or disabled packages or features of a project.
+# By default, only the names of the features/packages will be printed and their
+# required version when one was specified. Use SET_PACKAGE_PROPERTIES() to add more
+# useful information, like e.g. a download URL for the respective package or their
+# purpose in the project.
+#
+# The WHAT option is the only mandatory option. Here you specify what information
+# will be printed:
+# ALL: print everything
+# ENABLED_FEATURES: the list of all features which are enabled
+# DISABLED_FEATURES: the list of all features which are disabled
+# PACKAGES_FOUND: the list of all packages which have been found
+# PACKAGES_NOT_FOUND: the list of all packages which have not been found
+# OPTIONAL_PACKAGES_FOUND: only those packages which have been found which have the type OPTIONAL
+# OPTIONAL_PACKAGES_NOT_FOUND: only those packages which have not been found which have the type OPTIONAL
+# RECOMMENDED_PACKAGES_FOUND: only those packages which have been found which have the type RECOMMENDED
+# RECOMMENDED_PACKAGES_NOT_FOUND: only those packages which have not been found which have the type RECOMMENDED
+# REQUIRED_PACKAGES_FOUND: only those packages which have been found which have the type REQUIRED
+# REQUIRED_PACKAGES_NOT_FOUND: only those packages which have not been found which have the type REQUIRED
+# RUNTIME_PACKAGES_FOUND: only those packages which have been found which have the type RUNTIME
+# RUNTIME_PACKAGES_NOT_FOUND: only those packages which have not been found which have the type RUNTIME
+#
+# If a FILENAME is given, the information is printed into this file. If APPEND
+# is used, it is appended to this file, otherwise the file is overwritten if
+# it already existed.
+# If the VAR option is used, the information is "printed" into the specified
+# variable.
+# If FILENAME is not used, the information is printed to the terminal.
+# Using the DESCRIPTION option a description or headline can be set which will
+# be printed above the actual content.
+# If INCLUDE_QUIET_PACKAGES is given, packages which have been searched with find_package(... QUIET) will
+# also be listed. By default they are skipped.
+# If FATAL_ON_MISSING_REQUIRED_PACKAGES is given, CMake will abort if a package which is marked as REQUIRED
+# has not been found.
+#
+# Example 1, append everything to a file:
+# feature_summary(WHAT ALL
+# FILENAME ${CMAKE_BINARY_DIR}/all.log APPEND)
+#
+# Example 2, print the enabled features into the variable enabledFeaturesText, including QUIET packages:
+# feature_summary(WHAT ENABLED_FEATURES
+# INCLUDE_QUIET_PACKAGES
+# DESCRIPTION "Enabled Features:"
+# VAR enabledFeaturesText)
+# message(STATUS "${enabledFeaturesText}")
+#
+#
+# SET_PACKAGE_PROPERTIES(<name> PROPERTIES [ URL <url> ]
+# [ DESCRIPTION <description> ]
+# [ TYPE (RUNTIME|OPTIONAL|RECOMMENDED|REQUIRED) ]
+# [ PURPOSE <purpose> ]
+# )
+#
+# Use this macro to set up information about the named package, which can
+# then be displayed via FEATURE_SUMMARY().
+# This can be done either directly in the Find-module or in the project
+# which uses the module after the FIND_PACKAGE() call.
+# The features for which information can be set are added automatically by the
+# find_package() command.
+#
+# URL: this should be the homepage of the package, or something similar. Ideally this is set
+# already directly in the Find-module.
+#
+# DESCRIPTION: A short description what that package is, at most one sentence.
+# Ideally this is set already directly in the Find-module.
+#
+# TYPE: What type of dependency has the using project on that package. Default is OPTIONAL.
+# In this case it is a package which can be used by the project when available at buildtime,
+# but it also work without. RECOMMENDED is similar to OPTIONAL, i.e. the project will build
+# if the package is not present, but the functionality of the resulting binaries will be severly
+# limited. If a REQUIRED package is not available at buildtime, the project may not even build. This
+# can be combined with the FATAL_ON_MISSING_REQUIRED_PACKAGES argument for feature_summary().
+# Last, a RUNTIME package is a package which is actually not used at all during the build, but
+# which is required for actually running the resulting binaries. So if such a package is missing,
+# the project can still be built, but it may not work later on. If set_package_properties() is called
+# multiple times for the same package with different TYPEs, the TYPE is only changed to higher
+# TYPEs ( RUNTIME < OPTIONAL < RECOMMENDED < REQUIRED ), lower TYPEs are ignored.
+# The TYPE property is project-specific, so it cannot be set by the Find-module, but must be set in the project.
+#
+# PURPOSE: This describes which features this package enables in the project, i.e. it tells the user
+# what functionality he gets in the resulting binaries.
+# If set_package_properties() is called multiple times for a package, all PURPOSE properties are appended
+# to a list of purposes of the package in the project.
+# As the TYPE property, also the PURPOSE property
+# is project-specific, so it cannot be set by the Find-module, but must be set in the project.
+#
+#
+# Example for setting the info for a package:
+# find_package(LibXml2)
+# set_package_properties(LibXml2 PROPERTIES DESCRIPTION "A XML processing library."
+# URL "http://xmlsoft.org/")
+#
+# set_package_properties(LibXml2 PROPERTIES TYPE RECOMMENDED
+# PURPOSE "Enables HTML-import in MyWordProcessor")
+# ...
+# set_package_properties(LibXml2 PROPERTIES TYPE OPTIONAL
+# PURPOSE "Enables odt-export in MyWordProcessor")
+#
+# find_package(DBUS)
+# set_package_properties(DBUS PROPERTIES TYPE RUNTIME
+# PURPOSE "Necessary to disable the screensaver during a presentation" )
+#
+# ADD_FEATURE_INFO(<name> <enabled> <description>)
+# Use this macro to add information about a feature with the given <name>.
+# <enabled> contains whether this feature is enabled or not, <description>
+# is a text describing the feature.
+# The information can be displayed using feature_summary() for ENABLED_FEATURES
+# and DISABLED_FEATURES respectively.
+#
+# Example for setting the info for a feature:
+# option(WITH_FOO "Help for foo" ON)
+# add_feature_info(Foo WITH_FOO "The Foo feature provides very cool stuff.")
+#
+#
+# The following macros are provided for compatibility with previous CMake versions:
+#
+# SET_PACKAGE_INFO(<name> <description> [<url> [<purpose>] ] )
+# Use this macro to set up information about the named package, which can
+# then be displayed via FEATURE_SUMMARY().
+# This can be done either directly in the Find-module or in the project
+# which uses the module after the FIND_PACKAGE() call.
+# The features for which information can be set are added automatically by the
+# find_package() command.
+#
+# PRINT_ENABLED_FEATURES()
+# Does the same as FEATURE_SUMMARY(WHAT ENABLED_FEATURES DESCRIPTION "Enabled features:")
+#
+# PRINT_DISABLED_FEATURES()
+# Does the same as FEATURE_SUMMARY(WHAT DISABLED_FEATURES DESCRIPTION "Disabled features:")
+#
+# SET_FEATURE_INFO(<name> <description> [<url>] )
+# Does the same as SET_PACKAGE_INFO(<name> <description> <url> )
+
+#=============================================================================
+# Copyright 2007-2009 Kitware, Inc.
+#
+# Distributed under the OSI-approved BSD License (the "License");
+# see accompanying file Copyright.txt for details.
+#
+# This software is distributed WITHOUT ANY WARRANTY; without even the
+# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+# See the License for more information.
+#=============================================================================
+# (To distribute this file outside of CMake, substitute the full
+# License text for the above reference.)
+
+INCLUDE(CMakeParseArguments)
+
+
+FUNCTION(ADD_FEATURE_INFO _name _enabled _desc)
+ IF (${_enabled})
+ SET_PROPERTY(GLOBAL APPEND PROPERTY ENABLED_FEATURES "${_name}")
+ ELSE ()
+ SET_PROPERTY(GLOBAL APPEND PROPERTY DISABLED_FEATURES "${_name}")
+ ENDIF ()
+
+ SET_PROPERTY(GLOBAL PROPERTY _CMAKE_${_name}_DESCRIPTION "${_desc}" )
+ENDFUNCTION(ADD_FEATURE_INFO)
+
+
+
+FUNCTION(SET_PACKAGE_PROPERTIES _name _props)
+ IF(NOT "${_props}" STREQUAL "PROPERTIES")
+ MESSAGE(FATAL_ERROR "PROPERTIES keyword is missing in SET_PACKAGE_PROPERTIES() call.")
+ ENDIF()
+
+ SET(options ) # none
+ SET(oneValueArgs DESCRIPTION URL TYPE PURPOSE )
+ SET(multiValueArgs ) # none
+
+ CMAKE_PARSE_ARGUMENTS(_SPP "${options}" "${oneValueArgs}" "${multiValueArgs}" ${ARGN})
+
+ IF(_SPP_UNPARSED_ARGUMENTS)
+ MESSAGE(FATAL_ERROR "Unknown keywords given to SET_PACKAGE_PROPERTIES(): \"${_SPP_UNPARSED_ARGUMENTS}\"")
+ ENDIF()
+
+ IF(_SPP_DESCRIPTION)
+ GET_PROPERTY(_info GLOBAL PROPERTY _CMAKE_${_name}_DESCRIPTION)
+ IF(_info AND NOT "${_info}" STREQUAL "${_SPP_DESCRIPTION}")
+ MESSAGE(STATUS "Warning: Property DESCRIPTION for package ${_name} already set to \"${_info}\", overriding it with \"${_SPP_DESCRIPTION}\"")
+ ENDIF()
+
+ SET_PROPERTY(GLOBAL PROPERTY _CMAKE_${_name}_DESCRIPTION "${_SPP_DESCRIPTION}" )
+ ENDIF()
+
+
+ IF(_SPP_URL)
+ GET_PROPERTY(_info GLOBAL PROPERTY _CMAKE_${_name}_URL)
+ IF(_info AND NOT "${_info}" STREQUAL "${_SPP_URL}")
+ MESSAGE(STATUS "Warning: Property URL already set to \"${_info}\", overriding it with \"${_SPP_URL}\"")
+ ENDIF()
+
+ SET_PROPERTY(GLOBAL PROPERTY _CMAKE_${_name}_URL "${_SPP_URL}" )
+ ENDIF()
+
+
+ # handle the PURPOSE: use APPEND, since there can be multiple purposes for one package inside a project
+ IF(_SPP_PURPOSE)
+ SET_PROPERTY(GLOBAL APPEND PROPERTY _CMAKE_${_name}_PURPOSE "${_SPP_PURPOSE}" )
+ ENDIF()
+
+ # handle the TYPE
+ IF(NOT _SPP_TYPE)
+ SET(_SPP_TYPE OPTIONAL)
+ ENDIF()
+
+ # List the supported types, according to their priority
+ SET(validTypes "RUNTIME" "OPTIONAL" "RECOMMENDED" "REQUIRED" )
+ LIST(FIND validTypes ${_SPP_TYPE} _typeIndexInList)
+ IF("${_typeIndexInList}" STREQUAL "-1" )
+ MESSAGE(FATAL_ERROR "Bad package property type ${_SPP_TYPE} used in SET_PACKAGE_PROPERTIES(). "
+ "Valid types are OPTIONAL, RECOMMENDED, REQUIRED and RUNTIME." )
+ ENDIF()
+
+ GET_PROPERTY(_previousType GLOBAL PROPERTY _CMAKE_${_name}_TYPE)
+ LIST(FIND validTypes "${_previousType}" _prevTypeIndexInList)
+
+ # make sure a previously set TYPE is not overridden with a lower new TYPE:
+ IF("${_typeIndexInList}" GREATER "${_prevTypeIndexInList}")
+ SET_PROPERTY(GLOBAL PROPERTY _CMAKE_${_name}_TYPE "${_SPP_TYPE}" )
+ ENDIF()
+
+ENDFUNCTION(SET_PACKAGE_PROPERTIES)
+
+
+
+FUNCTION(_FS_GET_FEATURE_SUMMARY _property _var _includeQuiet)
+
+ SET(_type "ANY")
+ IF("${_property}" MATCHES "REQUIRED_")
+ SET(_type "REQUIRED")
+ ELSEIF("${_property}" MATCHES "RECOMMENDED_")
+ SET(_type "RECOMMENDED")
+ ELSEIF("${_property}" MATCHES "RUNTIME_")
+ SET(_type "RUNTIME")
+ ELSEIF("${_property}" MATCHES "OPTIONAL_")
+ SET(_type "OPTIONAL")
+ ENDIF()
+
+ IF("${_property}" MATCHES "PACKAGES_FOUND")
+ SET(_property "PACKAGES_FOUND")
+ ELSEIF("${_property}" MATCHES "PACKAGES_NOT_FOUND")
+ SET(_property "PACKAGES_NOT_FOUND")
+ ENDIF()
+
+
+ SET(_currentFeatureText "")
+ GET_PROPERTY(_EnabledFeatures GLOBAL PROPERTY ${_property})
+
+ FOREACH(_currentFeature ${_EnabledFeatures})
+
+ # does this package belong to the type we currently want to list ?
+ GET_PROPERTY(_currentType GLOBAL PROPERTY _CMAKE_${_currentFeature}_TYPE)
+ IF(NOT _currentType)
+ SET(_currentType OPTIONAL)
+ ENDIF()
+
+ IF("${_type}" STREQUAL ANY OR "${_type}" STREQUAL "${_currentType}")
+
+ # check whether the current feature/package should be in the output depending on whether it was QUIET or not
+ SET(includeThisOne TRUE)
+ # skip QUIET packages, except if they are REQUIRED or INCLUDE_QUIET_PACKAGES has been set
+ IF((NOT "${_currentType}" STREQUAL "REQUIRED") AND NOT _includeQuiet)
+ GET_PROPERTY(_isQuiet GLOBAL PROPERTY _CMAKE_${_currentFeature}_QUIET)
+ IF(_isQuiet)
+ SET(includeThisOne FALSE)
+ ENDIF()
+ ENDIF()
+
+ IF(includeThisOne)
+
+ SET(_currentFeatureText "${_currentFeatureText}\n * ${_currentFeature}")
+ GET_PROPERTY(_info GLOBAL PROPERTY _CMAKE_${_currentFeature}_REQUIRED_VERSION)
+ IF(_info)
+ SET(_currentFeatureText "${_currentFeatureText} (required version ${_info})")
+ ENDIF(_info)
+ GET_PROPERTY(_info GLOBAL PROPERTY _CMAKE_${_currentFeature}_DESCRIPTION)
+ IF(_info)
+ SET(_currentFeatureText "${_currentFeatureText} , ${_info}")
+ ENDIF(_info)
+ GET_PROPERTY(_info GLOBAL PROPERTY _CMAKE_${_currentFeature}_URL)
+ IF(_info)
+ SET(_currentFeatureText "${_currentFeatureText} , <${_info}>")
+ ENDIF(_info)
+
+ GET_PROPERTY(_info GLOBAL PROPERTY _CMAKE_${_currentFeature}_PURPOSE)
+ FOREACH(_purpose ${_info})
+ SET(_currentFeatureText "${_currentFeatureText}\n ${_purpose}")
+ ENDFOREACH()
+
+ ENDIF(includeThisOne)
+
+ ENDIF("${_type}" STREQUAL ANY OR "${_type}" STREQUAL "${_currentType}")
+
+ ENDFOREACH(_currentFeature)
+ SET(${_var} "${_currentFeatureText}" PARENT_SCOPE)
+ENDFUNCTION(_FS_GET_FEATURE_SUMMARY)
+
+
+
+FUNCTION(FEATURE_SUMMARY)
+# CMAKE_PARSE_ARGUMENTS(<prefix> <options> <one_value_keywords> <multi_value_keywords> args...)
+ SET(options APPEND INCLUDE_QUIET_PACKAGES FATAL_ON_MISSING_REQUIRED_PACKAGES)
+ SET(oneValueArgs FILENAME VAR DESCRIPTION WHAT)
+ SET(multiValueArgs ) # none
+
+ CMAKE_PARSE_ARGUMENTS(_FS "${options}" "${oneValueArgs}" "${multiValueArgs}" ${_FIRST_ARG} ${ARGN})
+
+ IF(_FS_UNPARSED_ARGUMENTS)
+ MESSAGE(FATAL_ERROR "Unknown keywords given to FEATURE_SUMMARY(): \"${_FS_UNPARSED_ARGUMENTS}\"")
+ ENDIF()
+
+ IF(NOT _FS_WHAT)
+ MESSAGE(FATAL_ERROR "The call to FEATURE_SUMMARY() doesn't set the required WHAT argument.")
+ ENDIF()
+
+ SET(validWhatParts "ENABLED_FEATURES"
+ "DISABLED_FEATURES"
+ "PACKAGES_FOUND"
+ "PACKAGES_NOT_FOUND"
+ "OPTIONAL_PACKAGES_FOUND"
+ "OPTIONAL_PACKAGES_NOT_FOUND"
+ "RECOMMENDED_PACKAGES_FOUND"
+ "RECOMMENDED_PACKAGES_NOT_FOUND"
+ "REQUIRED_PACKAGES_FOUND"
+ "REQUIRED_PACKAGES_NOT_FOUND"
+ "RUNTIME_PACKAGES_FOUND"
+ "RUNTIME_PACKAGES_NOT_FOUND")
+
+ LIST(FIND validWhatParts "${_FS_WHAT}" indexInList)
+ IF(NOT "${indexInList}" STREQUAL "-1")
+ _FS_GET_FEATURE_SUMMARY( ${_FS_WHAT} _featureSummary ${_FS_INCLUDE_QUIET_PACKAGES} )
+ SET(_fullText "${_FS_DESCRIPTION}${_featureSummary}\n")
+ IF (("${_FS_WHAT}" STREQUAL "REQUIRED_PACKAGES_NOT_FOUND") AND _featureSummary)
+ SET(requiredPackagesNotFound TRUE)
+ ENDIF()
+
+ ELSEIF("${_FS_WHAT}" STREQUAL "ALL")
+
+ SET(allWhatParts "ENABLED_FEATURES"
+ "RUNTIME_PACKAGES_FOUND"
+ "OPTIONAL_PACKAGES_FOUND"
+ "RECOMMENDED_PACKAGES_FOUND"
+ "REQUIRED_PACKAGES_FOUND"
+
+ "DISABLED_FEATURES"
+ "RUNTIME_PACKAGES_NOT_FOUND"
+ "OPTIONAL_PACKAGES_NOT_FOUND"
+ "RECOMMENDED_PACKAGES_NOT_FOUND"
+ "REQUIRED_PACKAGES_NOT_FOUND"
+ )
+
+ SET(title_ENABLED_FEATURES "The following features have been enabled:")
+ SET(title_DISABLED_FEATURES "The following features have been disabled:")
+ SET(title_OPTIONAL_PACKAGES_FOUND "The following OPTIONAL packages have been found:")
+ SET(title_OPTIONAL_PACKAGES_NOT_FOUND "The following OPTIONAL packages have not been found:")
+ SET(title_RECOMMENDED_PACKAGES_FOUND "The following RECOMMENDED packages have been found:")
+ SET(title_RECOMMENDED_PACKAGES_NOT_FOUND "The following RECOMMENDED packages have not been found:")
+ SET(title_REQUIRED_PACKAGES_FOUND "The following REQUIRED packages have been found:")
+ SET(title_REQUIRED_PACKAGES_NOT_FOUND "The following REQUIRED packages have not been found:")
+ SET(title_RUNTIME_PACKAGES_FOUND "The following RUNTIME packages have been found:")
+ SET(title_RUNTIME_PACKAGES_NOT_FOUND "The following RUNTIME packages have not been found:")
+
+ SET(_fullText "${_FS_DESCRIPTION}")
+ FOREACH(part ${allWhatParts})
+ SET(_tmp)
+ _FS_GET_FEATURE_SUMMARY( ${part} _tmp ${_FS_INCLUDE_QUIET_PACKAGES})
+ IF(_tmp)
+ SET(_fullText "${_fullText}\n-- ${title_${part}}\n${_tmp}\n")
+ IF("${part}" STREQUAL "REQUIRED_PACKAGES_NOT_FOUND")
+ SET(requiredPackagesNotFound TRUE)
+ ENDIF()
+ ENDIF()
+ ENDFOREACH()
+ ELSE()
+ MESSAGE(FATAL_ERROR "The WHAT argument of FEATURE_SUMMARY() is set to ${_FS_WHAT}, which is not a valid value.")
+ ENDIF()
+
+ IF(_FS_FILENAME)
+ IF(_FS_APPEND)
+ FILE(APPEND "${_FS_FILENAME}" "${_fullText}")
+ ELSE(_FS_APPEND)
+ FILE(WRITE "${_FS_FILENAME}" "${_fullText}")
+ ENDIF()
+
+ ELSE(_FS_FILENAME)
+ IF(NOT _FS_VAR)
+ MESSAGE(STATUS "${_fullText}")
+ ENDIF()
+ ENDIF()
+
+ IF(_FS_VAR)
+ SET(${_FS_VAR} "${_fullText}" PARENT_SCOPE)
+ ENDIF()
+
+ IF(requiredPackagesNotFound AND _FS_FATAL_ON_MISSING_REQUIRED_PACKAGES)
+ MESSAGE(FATAL_ERROR "feature_summary() Error: REQUIRED package(s) are missing, aborting CMake run.")
+ ENDIF()
+
+ENDFUNCTION(FEATURE_SUMMARY)
+
+
+# The stuff below is only kept for compatibility
+
+FUNCTION(SET_PACKAGE_INFO _name _desc)
+ SET(_url "${ARGV2}")
+ SET(_purpose "${ARGV3}")
+ SET_PROPERTY(GLOBAL PROPERTY _CMAKE_${_name}_DESCRIPTION "${_desc}" )
+ IF(_url MATCHES ".+")
+ SET_PROPERTY(GLOBAL PROPERTY _CMAKE_${_name}_URL "${_url}" )
+ ENDIF()
+ IF(_purpose MATCHES ".+")
+ SET_PROPERTY(GLOBAL APPEND PROPERTY _CMAKE_${_name}_PURPOSE "${_purpose}" )
+ ENDIF()
+ENDFUNCTION(SET_PACKAGE_INFO)
+
+
+
+FUNCTION(SET_FEATURE_INFO)
+ SET_PACKAGE_INFO(${ARGN})
+ENDFUNCTION(SET_FEATURE_INFO)
+
+
+
+FUNCTION(PRINT_ENABLED_FEATURES)
+ FEATURE_SUMMARY(WHAT ENABLED_FEATURES DESCRIPTION "Enabled features:")
+ENDFUNCTION(PRINT_ENABLED_FEATURES)
+
+
+
+FUNCTION(PRINT_DISABLED_FEATURES)
+ FEATURE_SUMMARY(WHAT DISABLED_FEATURES DESCRIPTION "Disabled features:")
+ENDFUNCTION(PRINT_DISABLED_FEATURES)