Split CPack.cmake in more manageable parts

Put NSIS, Bundle and Component related MACROs in separate files.
This does not implies functional changes, concerning the way
CPack is used.

1 files changed, 12 insertions, 491 deletions

diff --git a/Modules/CPack.cmake b/Modules/CPack.cmake
index 797ee57..bf52b25 100644
--- a/Modules/CPack.cmake
+++ b/Modules/CPack.cmake
@@ -11,13 +11,7 @@
 # For certain kinds of binary installers (including the graphical
 # installers on Mac OS X and Windows), CPack generates installers that
 # allow users to select individual application components to
-# install. The contents of each of the components are identified by
-# the COMPONENT argument of CMake's INSTALL command. These components
-# can be annotated with user-friendly names and descriptions,
-# inter-component dependencies, etc., and grouped in various ways to
-# customize the resulting installer. See the cpack_add_* commands,
-# described below, for more information about component-specific
-# installations.
+# install. See CPackComponent module for that.
 #
 # The CPACK_GENERATOR variable has different meanings in different
 # contexts. In your CMakeLists.txt file, CPACK_GENERATOR is a
@@ -183,93 +177,6 @@
 #   automatically detected command (or specify its location if the
 #   auto-detection fails to find it.)
 #
-# Installers built on Mac OS X using the Bundle generator use the
-# aforementioned DragNDrop variables, plus the following Bundle-specific
-# parameters:
-#
-#   CPACK_BUNDLE_NAME - The name of the generated bundle.  This
-#   appears in the OSX finder as the bundle name.  Required.
-#
-#   CPACK_BUNDLE_PLIST - Path to an OSX plist file that will be used
-#   as the Info.plist for the generated bundle.  This assumes that
-#   the caller has generated or specified their own Info.plist file.
-#   Required.
-#
-#   CPACK_BUNDLE_ICON - Path to an OSX icns file that will be used as
-#   the icon for the generated bundle.  This is the icon that appears
-#   in the OSX finder for the bundle, and in the OSX dock when the
-#   bundle is opened.  Required.
-#
-#   CPACK_BUNDLE_STARTUP_SCRIPT - Path to an executable or script that
-#   will be run whenever an end-user double-clicks the generated bundle
-#   in the OSX Finder.  Optional.
-#
-# The following variables are specific to the graphical installers built
-# on Windows using the Nullsoft Installation System.
-#
-#   CPACK_PACKAGE_INSTALL_REGISTRY_KEY - Registry key used when
-#   installing this project.
-#
-#   CPACK_NSIS_INSTALL_ROOT - The default installation directory presented
-#   to the end user by the NSIS installer is under this root dir. The full
-#   directory presented to the end user is:
-#   ${CPACK_NSIS_INSTALL_ROOT}/${CPACK_PACKAGE_INSTALL_DIRECTORY}
-#
-#   CPACK_NSIS_MUI_ICON - The icon file (.ico) for the generated
-#   install program.
-#
-#   CPACK_NSIS_MUI_UNIICON - The icon file (.ico) for the generated
-#   uninstall program.
-#
-#   CPACK_PACKAGE_ICON - A branding image that will be displayed inside
-#   the installer.
-#
-#   CPACK_NSIS_EXTRA_INSTALL_COMMANDS - Extra NSIS commands that will
-#   be added to the install Section.
-#
-#   CPACK_NSIS_EXTRA_UNINSTALL_COMMANDS - Extra NSIS commands that will
-#   be added to the uninstall Section.
-#
-#   CPACK_NSIS_COMPRESSOR - The arguments that will be passed to the
-#   NSIS SetCompressor command.
-#
-#   CPACK_NSIS_MODIFY_PATH - If this is set to "ON", then an extra page
-#   will appear in the installer that will allow the user to choose
-#   whether the program directory should be added to the system PATH
-#   variable.
-#
-#   CPACK_NSIS_DISPLAY_NAME - The display name string that appears in
-#   the Windows Add/Remove Program control panel
-#
-#   CPACK_NSIS_PACKAGE_NAME - The title displayed at the top of the
-#   installer.
-#
-#   CPACK_NSIS_INSTALLED_ICON_NAME - A path to the executable that
-#   contains the installer icon.
-#
-#   CPACK_NSIS_HELP_LINK - URL to a web site providing assistance in
-#   installing your application.
-#
-#   CPACK_NSIS_URL_INFO_ABOUT - URL to a web site providing more
-#   information about your application.
-#
-#   CPACK_NSIS_CONTACT - Contact information for questions and comments
-#   about the installation process.
-#
-#   CPACK_NSIS_CREATE_ICONS_EXTRA - Additional NSIS commands for
-#   creating start menu shortcuts.
-#
-#   CPACK_NSIS_DELETE_ICONS_EXTRA -Additional NSIS commands to
-#   uninstall start menu shortcuts.
-#
-#   CPACK_NSIS_EXECUTABLES_DIRECTORY - Creating NSIS start menu links
-#   assumes that they are in 'bin' unless this variable is set.
-#   For example, you would set this to 'exec' if your executables are
-#   in an exec directory.
-#
-#   CPACK_NSIS_MUI_FINISHPAGE_RUN - Specify an executable to add an option
-#   to run on the finish page of the NSIS installer.
-#
 # The following variable is specific to installers build on Mac OS X
 # using PackageMaker:
 #
@@ -310,194 +217,6 @@
 #
 #   CPACK_INSTALL_DIRECTORIES - Extra directories to install.
 #
-# Component-specific installation allows users to select specific sets
-# of components to install during the install process. Installation
-# components are identified by the COMPONENT argument of CMake's
-# INSTALL commands, and should be further described by the following
-# CPack commands:
-#
-#   cpack_add_component - Describes a CPack installation component
-#   named by the COMPONENT argument to a CMake INSTALL command.
-#
-#     cpack_add_component(compname
-#                         [DISPLAY_NAME name]
-#                         [DESCRIPTION description]
-#                         [HIDDEN | REQUIRED | DISABLED ]
-#                         [GROUP group]
-#                         [DEPENDS comp1 comp2 ... ]
-#                         [INSTALL_TYPES type1 type2 ... ]
-#                         [DOWNLOADED]
-#                         [ARCHIVE_FILE filename])
-#
-#   The cmake_add_component command describes an installation
-#   component, which the user can opt to install or remove as part of
-#   the graphical installation process. compname is the name of the
-#   component, as provided to the COMPONENT argument of one or more
-#   CMake INSTALL commands.
-#
-#   DISPLAY_NAME is the displayed name of the component, used in
-#   graphical installers to display the component name. This value can
-#   be any string.
-#
-#   DESCRIPTION is an extended description of the component, used in
-#   graphical installers to give the user additional information about
-#   the component. Descriptions can span multiple lines using "\n" as
-#   the line separator. Typically, these descriptions should be no
-#   more than a few lines long.
-#
-#   HIDDEN indicates that this component will be hidden in the
-#   graphical installer, so that the user cannot directly change
-#   whether it is installed or not.
-#
-#   REQUIRED indicates that this component is required, and therefore
-#   will always be installed. It will be visible in the graphical
-#   installer, but it cannot be unselected. (Typically, required
-#   components are shown greyed out).
-#
-#   DISABLED indicates that this component should be disabled
-#   (unselected) by default. The user is free to select this component
-#   for installation, unless it is also HIDDEN.
-#
-#   DEPENDS lists the components on which this component depends. If
-#   this component is selected, then each of the components listed
-#   must also be selected. The dependency information is encoded
-#   within the installer itself, so that users cannot install
-#   inconsitent sets of components.
-#
-#   GROUP names the component group of which this component is a
-#   part. If not provided, the component will be a standalone
-#   component, not part of any component group. Component groups are
-#   described with the cpack_add_component_group command, detailed
-#   below.
-#
-#   INSTALL_TYPES lists the installation types of which this component
-#   is a part. When one of these installations types is selected, this
-#   component will automatically be selected. Installation types are
-#   described with the cpack_add_install_type command, detailed below.
-#
-#   DOWNLOADED indicates that this component should be downloaded
-#   on-the-fly by the installer, rather than packaged in with the
-#   installer itself. For more information, see the cpack_configure_downloads
-#   command.
-#
-#   ARCHIVE_FILE provides a name for the archive file created by CPack
-#   to be used for downloaded components. If not supplied, CPack will
-#   create a file with some name based on CPACK_PACKAGE_FILE_NAME and
-#   the name of the component. See cpack_configure_downloads for more
-#   information.
-#
-#   cpack_add_component_group - Describes a group of related CPack
-#   installation components.
-#
-#     cpack_add_component_group(groupname
-#                              [DISPLAY_NAME name]
-#                              [DESCRIPTION description]
-#                              [PARENT_GROUP parent]
-#                              [EXPANDED]
-#                              [BOLD_TITLE])
-#
-#   The cpack_add_component_group describes a group of installation
-#   components, which will be placed together within the listing of
-#   options. Typically, component groups allow the user to
-#   select/deselect all of the components within a single group via a
-#   single group-level option. Use component groups to reduce the
-#   complexity of installers with many options. groupname is an
-#   arbitrary name used to identify the group in the GROUP argument of
-#   the cpack_add_component command, which is used to place a
-#   component in a group. The name of the group must not conflict with
-#   the name of any component.
-#
-#   DISPLAY_NAME is the displayed name of the component group, used in
-#   graphical installers to display the component group name. This
-#   value can be any string.
-#
-#   DESCRIPTION is an extended description of the component group,
-#   used in graphical installers to give the user additional
-#   information about the components within that group. Descriptions
-#   can span multiple lines using "\n" as the line
-#   separator. Typically, these descriptions should be no more than a
-#   few lines long.
-#
-#   PARENT_GROUP, if supplied, names the parent group of this group. 
-#   Parent groups are used to establish a hierarchy of groups, 
-#   providing an arbitrary hierarchy of groups.
-#
-#   EXPANDED indicates that, by default, the group should show up as
-#   "expanded", so that the user immediately sees all of the
-#   components within the group. Otherwise, the group will initially
-#   show up as a single entry.
-#
-#   BOLD_TITLE indicates that the group title should appear in bold,
-#   to call the user's attention to the group.
-#
-#   cpack_add_install_type - Add a new installation type containing a
-#   set of predefined component selections to the graphical installer.
-#                      
-#     cpack_add_install_type(typename
-#                            [DISPLAY_NAME name])   
-#
-#   The cpack_add_install_type command identifies a set of preselected
-#   components that represents a common use case for an
-#   application. For example, a "Developer" install type might include
-#   an application along with its header and library files, while an
-#   "End user" install type might just include the application's
-#   executable. Each component identifies itself with one or more
-#   install types via the INSTALL_TYPES argument to
-#   cpack_add_component.
-#
-#   DISPLAY_NAME is the displayed name of the install type, which will
-#   typically show up in a drop-down box within a graphical
-#   installer. This value can be any string.
-#
-#   cpack_configure_downloads - Configure CPack to download selected
-#   components on-the-fly as part of the installation process.
-#
-#     cpack_configure_downloads(site
-#                               [UPLOAD_DIRECTORY dirname]
-#                               [ALL]
-#                               [ADD_REMOVE|NO_ADD_REMOVE])
-#
-#   The cpack_configure_downloads command configures installation-time
-#   downloads of selected components. For each downloadable component,
-#   CPack will create an archive containing the contents of that
-#   component, which should be uploaded to the given site. When the
-#   user selects that component for installation, the installer will
-#   download and extract the component in place. This feature is
-#   useful for creating small installers that only download the
-#   requested components, saving bandwidth. Additionally, the
-#   installers are small enough that they will be installed as part of
-#   the normal installation process, and the "Change" button in
-#   Windows Add/Remove Programs control panel will allow one to add or
-#   remove parts of the application after the original
-#   installation. On Windows, the downloaded-components functionality
-#   requires the ZipDLL plug-in for NSIS, available at:
-#
-#     http://nsis.sourceforge.net/ZipDLL_plug-in
-#
-#   On Mac OS X, installers that download components on-the-fly can
-#   only be built and installed on system using Mac OS X 10.5 or
-#   later.
-#
-#   The site argument is a URL where the archives for downloadable 
-#   components will reside, e.g., http://www.cmake.org/files/2.6.1/installer/
-#   All of the archives produced by CPack should be uploaded to that location.
-#
-#   UPLOAD_DIRECTORY is the local directory where CPack will create the 
-#   various archives for each of the components. The contents of this
-#   directory should be uploaded to a location accessible by the URL given
-#   in the site argument. If omitted, CPack will use the directory 
-#   CPackUploads inside the CMake binary directory to store the generated
-#   archives.
-#
-#   The ALL flag indicates that all components be downloaded. Otherwise, only 
-#   those components explicitly marked as DOWNLOADED or that have a specified 
-#   ARCHIVE_FILE will be downloaded. Additionally, the ALL option implies
-#   ADD_REMOVE (unless NO_ADD_REMOVE is specified).
-#
-#   ADD_REMOVE indicates that CPack should install a copy of the installer
-#   that can be called from Windows' Add/Remove Programs dialog (via the 
-#   "Modify" button) to change the set of installed components. NO_ADD_REMOVE
-#   turns off this behavior. This option is ignored on Mac OS X.
 
 #=============================================================================
 # Copyright 2006-2009 Kitware, Inc.
@@ -512,6 +231,13 @@
 # (To distribute this file outside of CMake, substitute the full
 #  License text for the above reference.)
 
+# Define this var in order to avoid (or warn) concerning multiple inclusion
+IF(CPack_CMake_INCLUDED)
+  MESSAGE(WARNING "CPack.cmake has already been included!!")
+ELSE(CPack_CMake_INCLUDED)
+  SET(CPack_CMake_INCLUDED 1)
+ENDIF(CPack_CMake_INCLUDED)
+
 # Pick a configuration file
 SET(cpack_input_file "${CMAKE_ROOT}/Templates/CPackConfig.cmake.in")
 IF(EXISTS "${CMAKE_SOURCE_DIR}/CPackConfig.cmake.in")
@@ -522,214 +248,9 @@ IF(EXISTS "${CMAKE_SOURCE_DIR}/CPackSourceConfig.cmake.in")
   SET(cpack_source_input_file "${CMAKE_SOURCE_DIR}/CPackSourceConfig.cmake.in")
 ENDIF(EXISTS "${CMAKE_SOURCE_DIR}/CPackSourceConfig.cmake.in")
 
-# Argument-parsing macro from http://www.cmake.org/Wiki/CMakeMacroParseArguments
-MACRO(cpack_parse_arguments prefix arg_names option_names)
-  SET(${prefix}_DEFAULT_ARGS)
-  FOREACH(arg_name ${arg_names})    
-    SET(${prefix}_${arg_name})
-  ENDFOREACH(arg_name)
-  FOREACH(option ${option_names})
-    SET(${prefix}_${option} FALSE)
-  ENDFOREACH(option)
-
-  SET(current_arg_name DEFAULT_ARGS)
-  SET(current_arg_list)
-  FOREACH(arg ${ARGN})            
-    SET(larg_names ${arg_names})    
-    LIST(FIND larg_names "${arg}" is_arg_name)                   
-    IF (is_arg_name GREATER -1)
-      SET(${prefix}_${current_arg_name} ${current_arg_list})
-      SET(current_arg_name ${arg})
-      SET(current_arg_list)
-    ELSE (is_arg_name GREATER -1)
-      SET(loption_names ${option_names})    
-      LIST(FIND loption_names "${arg}" is_option)            
-      IF (is_option GREATER -1)
-        SET(${prefix}_${arg} TRUE)
-      ELSE (is_option GREATER -1)
-        SET(current_arg_list ${current_arg_list} ${arg})
-      ENDIF (is_option GREATER -1)
-    ENDIF (is_arg_name GREATER -1)
-  ENDFOREACH(arg)
-  SET(${prefix}_${current_arg_name} ${current_arg_list})
-ENDMACRO(cpack_parse_arguments)
-
-# Macro that appends a SET command for the given variable name (var)
-# to the macro named strvar, but only if the variable named "var"
-# has been defined. The string will eventually be appended to a CPack
-# configuration file.
-MACRO(cpack_append_variable_set_command var strvar)
-  IF (DEFINED ${var})
-    SET(${strvar} "${${strvar}}SET(${var}")
-    FOREACH(APPENDVAL ${${var}})
-      SET(${strvar} "${${strvar}} ${APPENDVAL}")
-    ENDFOREACH(APPENDVAL)
-    SET(${strvar} "${${strvar}})\n")
-  ENDIF (DEFINED ${var})
-ENDMACRO(cpack_append_variable_set_command)
-
-# Macro that appends a SET command for the given variable name (var)
-# to the macro named strvar, but only if the variable named "var"
-# has been defined and is a string. The string will eventually be
-# appended to a CPack configuration file.
-MACRO(cpack_append_string_variable_set_command var strvar)
-  IF (DEFINED ${var})
-    LIST(LENGTH ${var} CPACK_APP_VALUE_LEN)
-    IF(${CPACK_APP_VALUE_LEN} EQUAL 1)
-      SET(${strvar} "${${strvar}}SET(${var} \"${${var}}\")\n")
-    ENDIF(${CPACK_APP_VALUE_LEN} EQUAL 1)
-  ENDIF (DEFINED ${var})
-ENDMACRO(cpack_append_string_variable_set_command)
-
-# Macro that appends a SET command for the given variable name (var)
-# to the macro named strvar, but only if the variable named "var"
-# has been set to true. The string will eventually be
-# appended to a CPack configuration file.
-MACRO(cpack_append_option_set_command var strvar)
-  IF (${var})
-    LIST(LENGTH ${var} CPACK_APP_VALUE_LEN)
-    IF(${CPACK_APP_VALUE_LEN} EQUAL 1)
-      SET(${strvar} "${${strvar}}SET(${var} TRUE)\n")
-    ENDIF(${CPACK_APP_VALUE_LEN} EQUAL 1)
-  ENDIF (${var})
-ENDMACRO(cpack_append_option_set_command)
-
-# Macro that adds a component to the CPack installer
-MACRO(cpack_add_component compname)
-  STRING(TOUPPER ${compname} CPACK_ADDCOMP_UNAME)
-  cpack_parse_arguments(CPACK_COMPONENT_${CPACK_ADDCOMP_UNAME}
-    "DISPLAY_NAME;DESCRIPTION;GROUP;DEPENDS;INSTALL_TYPES;ARCHIVE_FILE"
-    "HIDDEN;REQUIRED;DISABLED;DOWNLOADED"
-    ${ARGN}
-    )
-  
-  if (CPACK_COMPONENT_${CPACK_ADDCOMP_UNAME}_DOWNLOADED)
-    SET(CPACK_ADDCOMP_STR "\n# Configuration for downloaded component \"${compname}\"\n")
-  else ()
-    SET(CPACK_ADDCOMP_STR "\n# Configuration for component \"${compname}\"\n")
-  endif ()
-
-  IF(NOT CPACK_MONOLITHIC_INSTALL)
-    # If the user didn't set CPACK_COMPONENTS_ALL explicitly, update the
-    # value of CPACK_COMPONENTS_ALL in the configuration file. This will
-    # take care of any components that have been added after the CPack
-    # moduled was included.
-    IF(NOT CPACK_COMPONENTS_ALL_SET_BY_USER)
-      GET_CMAKE_PROPERTY(CPACK_ADDCOMP_COMPONENTS COMPONENTS)
-      SET(CPACK_ADDCOMP_STR "${CPACK_ADDCOMP_STR}\nSET(CPACK_COMPONENTS_ALL")
-      FOREACH(COMP ${CPACK_ADDCOMP_COMPONENTS})
-        SET(CPACK_ADDCOMP_STR "${CPACK_ADDCOMP_STR} ${COMP}")
-      ENDFOREACH(COMP)
-      SET(CPACK_ADDCOMP_STR "${CPACK_ADDCOMP_STR})\n")
-    ENDIF(NOT CPACK_COMPONENTS_ALL_SET_BY_USER)
-  ENDIF(NOT CPACK_MONOLITHIC_INSTALL)
-
-  cpack_append_string_variable_set_command(
-    CPACK_COMPONENT_${CPACK_ADDCOMP_UNAME}_DISPLAY_NAME
-    CPACK_ADDCOMP_STR)
-  cpack_append_string_variable_set_command(
-    CPACK_COMPONENT_${CPACK_ADDCOMP_UNAME}_DESCRIPTION
-    CPACK_ADDCOMP_STR)
-  cpack_append_variable_set_command(
-    CPACK_COMPONENT_${CPACK_ADDCOMP_UNAME}_GROUP
-    CPACK_ADDCOMP_STR)
-  cpack_append_variable_set_command(
-    CPACK_COMPONENT_${CPACK_ADDCOMP_UNAME}_DEPENDS
-    CPACK_ADDCOMP_STR)
-  cpack_append_variable_set_command(
-    CPACK_COMPONENT_${CPACK_ADDCOMP_UNAME}_INSTALL_TYPES
-    CPACK_ADDCOMP_STR)
-  cpack_append_string_variable_set_command(
-    CPACK_COMPONENT_${CPACK_ADDCOMP_UNAME}_ARCHIVE_FILE
-    CPACK_ADDCOMP_STR)    
-  cpack_append_option_set_command(
-    CPACK_COMPONENT_${CPACK_ADDCOMP_UNAME}_HIDDEN
-    CPACK_ADDCOMP_STR)
-  cpack_append_option_set_command(
-    CPACK_COMPONENT_${CPACK_ADDCOMP_UNAME}_REQUIRED
-    CPACK_ADDCOMP_STR)
-  cpack_append_option_set_command(
-    CPACK_COMPONENT_${CPACK_ADDCOMP_UNAME}_DISABLED
-    CPACK_ADDCOMP_STR)
-  cpack_append_option_set_command(
-    CPACK_COMPONENT_${CPACK_ADDCOMP_UNAME}_DOWNLOADED
-    CPACK_ADDCOMP_STR)
-  FILE(APPEND "${CPACK_OUTPUT_CONFIG_FILE}" "${CPACK_ADDCOMP_STR}")
-ENDMACRO(cpack_add_component)
-
-# Macro that adds a component group to the CPack installer
-MACRO(cpack_add_component_group grpname)
-  STRING(TOUPPER ${grpname} CPACK_ADDGRP_UNAME)
-  cpack_parse_arguments(CPACK_COMPONENT_GROUP_${CPACK_ADDGRP_UNAME}
-    "DISPLAY_NAME;DESCRIPTION"
-    "EXPANDED;BOLD_TITLE"
-    ${ARGN}
-    )
-
-  SET(CPACK_ADDGRP_STR "\n# Configuration for component group \"${grpname}\"\n")
-  cpack_append_string_variable_set_command(
-    CPACK_COMPONENT_GROUP_${CPACK_ADDGRP_UNAME}_DISPLAY_NAME
-    CPACK_ADDGRP_STR)
-  cpack_append_string_variable_set_command(
-    CPACK_COMPONENT_GROUP_${CPACK_ADDGRP_UNAME}_DESCRIPTION
-    CPACK_ADDGRP_STR)
-  cpack_append_option_set_command(
-    CPACK_COMPONENT_GROUP_${CPACK_ADDGRP_UNAME}_EXPANDED
-    CPACK_ADDGRP_STR)
-  cpack_append_option_set_command(
-    CPACK_COMPONENT_GROUP_${CPACK_ADDGRP_UNAME}_BOLD_TITLE
-    CPACK_ADDGRP_STR)
-  FILE(APPEND "${CPACK_OUTPUT_CONFIG_FILE}" "${CPACK_ADDGRP_STR}")
-ENDMACRO(cpack_add_component_group)
-
-# Macro that adds an installation type to the CPack installer
-MACRO(cpack_add_install_type insttype)
-  STRING(TOUPPER ${insttype} CPACK_INSTTYPE_UNAME)
-  cpack_parse_arguments(CPACK_INSTALL_TYPE_${CPACK_INSTTYPE_UNAME}
-    "DISPLAY_NAME"
-    ""
-    ${ARGN}
-    )
-
-  SET(CPACK_INSTTYPE_STR 
-    "\n# Configuration for installation type \"${insttype}\"\n")
-  SET(CPACK_INSTTYPE_STR 
-    "${CPACK_INSTTYPE_STR}LIST(APPEND CPACK_ALL_INSTALL_TYPES ${insttype})\n")
-  cpack_append_string_variable_set_command(
-    CPACK_INSTALL_TYPE_${CPACK_INSTTYPE_UNAME}_DISPLAY_NAME
-    CPACK_INSTTYPE_STR)
-  FILE(APPEND "${CPACK_OUTPUT_CONFIG_FILE}" "${CPACK_INSTTYPE_STR}")
-ENDMACRO(cpack_add_install_type)
-
-MACRO(cpack_configure_downloads site)
-  cpack_parse_arguments(CPACK_DOWNLOAD
-    "UPLOAD_DIRECTORY"
-    "ALL;ADD_REMOVE;NO_ADD_REMOVE"
-    ${ARGN}
-    )
-    
-  SET(CPACK_CONFIG_DL_STR
-    "\n# Downloaded components configuration\n")
-  SET(CPACK_UPLOAD_DIRECTORY ${CPACK_DOWNLOAD_UPLOAD_DIRECTORY})
-  SET(CPACK_DOWNLOAD_SITE ${site})
-  cpack_append_string_variable_set_command(
-    CPACK_DOWNLOAD_SITE
-    CPACK_CONFIG_DL_STR)  
-  cpack_append_string_variable_set_command(
-    CPACK_UPLOAD_DIRECTORY
-    CPACK_CONFIG_DL_STR)
-  cpack_append_option_set_command(
-    CPACK_DOWNLOAD_ALL
-    CPACK_CONFIG_DL_STR)
-  IF (${CPACK_DOWNLOAD_ALL} AND NOT ${CPACK_DOWNLOAD_NO_ADD_REMOVE})
-    SET(CPACK_DOWNLOAD_ADD_REMOVE ON)
-  ENDIF (${CPACK_DOWNLOAD_ALL} AND NOT ${CPACK_DOWNLOAD_NO_ADD_REMOVE})
-  SET(CPACK_ADD_REMOVE ${CPACK_DOWNLOAD_ADD_REMOVE})
-  cpack_append_option_set_command(
-    CPACK_ADD_REMOVE
-    CPACK_CONFIG_DL_STR)
-  FILE(APPEND "${CPACK_OUTPUT_CONFIG_FILE}" "${CPACK_CONFIG_DL_STR}")
-ENDMACRO(cpack_configure_downloads)
+# Backward compatibility
+# Include CPackComponent macros if it has not already been included before.
+include(CPackComponent)
 
 # Macro for setting values if a user did not overwrite them
 MACRO(cpack_set_if_not_set name value)
@@ -739,7 +260,7 @@ MACRO(cpack_set_if_not_set name value)
 ENDMACRO(cpack_set_if_not_set)
 
 # Macro to encode variables for the configuration file
-# find any varable that stars with CPACK and create a variable
+# find any variable that starts with CPACK and create a variable
 # _CPACK_OTHER_VARIABLES_ that contains SET commands for
 # each cpack variable.  _CPACK_OTHER_VARIABLES_ is then
 # used as an @ replacment in configure_file for the CPackConfig.