Modules/CPackDeb.cmake - third_party/cmake - Git at Google

 #.rst:
 # CPackDeb
 # --------
 #
 # The builtin (binary) CPack Deb generator (Unix only)
 #
 # Variables specific to CPack Debian (DEB) generator
 # ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 #
 # CPackDeb may be used to create Deb package using CPack.
 # CPackDeb is a CPack generator thus it uses the CPACK_XXX variables
 # used by CPack : http://www.cmake.org/Wiki/CMake:CPackConfiguration.
 # CPackDeb generator should work on any linux host but it will produce
 # better deb package when Debian specific tools 'dpkg-xxx' are usable on
 # the build system.
 #
 # CPackDeb has specific features which are controlled by the specifics
 # CPACK_DEBIAN_XXX variables.You'll find a detailed usage on the wiki:
 # http://www.cmake.org/Wiki/CMake:CPackPackageGenerators#DEB_.28UNIX_only.29
 #
 # However as a handy reminder here comes the list of specific variables:
 #
 # .. variable:: CPACK_DEBIAN_PACKAGE_NAME
 #
 #  * Mandatory : YES
 #  * Default   : CPACK_PACKAGE_NAME (lower case)
 #
 #  The debian package summary
 #
 # .. variable:: CPACK_DEBIAN_PACKAGE_VERSION
 #
 #  * Mandatory : YES
 #  * Default   : CPACK_PACKAGE_VERSION
 #
 #  The debian package version
 #
 # .. variable:: CPACK_DEBIAN_PACKAGE_ARCHITECTURE
 #
 #  * Mandatory : YES
 #  * Default   : Output of dpkg --print-architecture (or i386 if dpkg is not found)
 #
 #  The debian package architecture
 #
 # .. variable:: CPACK_DEBIAN_PACKAGE_DEPENDS
 #
 #  * Mandatory : NO
 #  * Default   : -
 #
 #  May be used to set deb dependencies.
 #
 # .. variable:: CPACK_DEBIAN_PACKAGE_MAINTAINER
 #
 #  * Mandatory : YES
 #  * Default   : CPACK_PACKAGE_CONTACT
 #
 #  The debian package maintainer
 #
 # .. variable:: CPACK_DEBIAN_PACKAGE_DESCRIPTION
 #
 #  * Mandatory : YES
 #  * Default   : CPACK_PACKAGE_DESCRIPTION_SUMMARY
 #
 #  The debian package description
 #
 # .. variable:: CPACK_DEBIAN_PACKAGE_SECTION
 #
 #  * Mandatory : YES
 #  * Default   : 'devel'
 #
 #  The debian package section
 #
 # .. variable:: CPACK_DEBIAN_PACKAGE_PRIORITY
 #
 #  * Mandatory : YES
 #  * Default   : 'optional'
 #
 #  The debian package priority
 #
 # .. variable:: CPACK_DEBIAN_PACKAGE_HOMEPAGE
 #
 #  * Mandatory : NO
 #  * Default   : -
 #
 #  The URL of the web site for this package, preferably (when applicable) the
 #  site from which the original source can be obtained and any additional
 #  upstream documentation or information may be found.
 #  The content of this field is a simple URL without any surrounding
 #  characters such as <>.
 #
 # .. variable:: CPACK_DEBIAN_PACKAGE_SHLIBDEPS
 #
 #  * Mandatory : NO
 #  * Default   : OFF
 #
 #  May be set to ON in order to use dpkg-shlibdeps to generate
 #  better package dependency list.
 #  You may need set CMAKE_INSTALL_RPATH toi appropriate value
 #  if you use this feature, because if you don't dpkg-shlibdeps
 #  may fail to find your own shared libs.
 #  See http://www.cmake.org/Wiki/CMake_RPATH_handling.
 #
 # .. variable:: CPACK_DEBIAN_PACKAGE_DEBUG
 #
 #  * Mandatory : NO
 #  * Default   : -
 #
 #  May be set when invoking cpack in order to trace debug information
 #  during CPackDeb run.
 #
 # .. variable:: CPACK_DEBIAN_PACKAGE_PREDEPENDS
 #
 #  * Mandatory : NO
 #  * Default   : -
 #
 #  see http://www.debian.org/doc/debian-policy/ch-relationships.html#s-binarydeps
 #  This field is like Depends, except that it also forces dpkg to complete installation of
 #  the packages named before even starting the installation of the package which declares
 #  the pre-dependency.
 #
 # .. variable:: CPACK_DEBIAN_PACKAGE_ENHANCES
 #
 #  * Mandatory : NO
 #  * Default   : -
 #
 #  see http://www.debian.org/doc/debian-policy/ch-relationships.html#s-binarydeps
 #  This field is similar to Suggests but works in the opposite direction.
 #  It is used to declare that a package can enhance the functionality of another package.
 #
 # .. variable:: CPACK_DEBIAN_PACKAGE_BREAKS
 #
 #  * Mandatory : NO
 #  * Default   : -
 #
 #  see http://www.debian.org/doc/debian-policy/ch-relationships.html#s-binarydeps
 #  When one binary package declares that it breaks another, dpkg will refuse to allow the
 #  package which declares Breaks be installed unless the broken package is deconfigured first,
 #  and it will refuse to allow the broken package to be reconfigured.
 #
 # .. variable:: CPACK_DEBIAN_PACKAGE_CONFLICTS
 #
 #  * Mandatory : NO
 #  * Default   : -
 #
 #  see http://www.debian.org/doc/debian-policy/ch-relationships.html#s-binarydeps
 #  When one binary package declares a conflict with another using a Conflicts field,
 #  dpkg will refuse to allow them to be installed on the system at the same time.
 #
 # .. variable:: CPACK_DEBIAN_PACKAGE_PROVIDES
 #
 #  * Mandatory : NO
 #  * Default   : -
 #
 #  see http://www.debian.org/doc/debian-policy/ch-relationships.html#s-binarydeps
 #  A virtual package is one which appears in the Provides control field of another package.
 #
 # .. variable:: CPACK_DEBIAN_PACKAGE_REPLACES
 #
 #  * Mandatory : NO
 #  * Default   : -
 #
 #  see http://www.debian.org/doc/debian-policy/ch-relationships.html#s-binarydeps
 #  Packages can declare in their control file that they should overwrite
 #  files in certain other packages, or completely replace other packages.
 #
 # .. variable:: CPACK_DEBIAN_PACKAGE_RECOMMENDS
 #
 #  * Mandatory : NO
 #  * Default   : -
 #
 #  see http://www.debian.org/doc/debian-policy/ch-relationships.html#s-binarydeps
 #  Allows packages to declare a strong, but not absolute, dependency on other packages.
 #
 # .. variable:: CPACK_DEBIAN_PACKAGE_SUGGESTS
 #
 #  * Mandatory : NO
 #  * Default   : -
 #
 #  see http://www.debian.org/doc/debian-policy/ch-relationships.html#s-binarydeps
 #  Allows packages to declare a suggested package install grouping.
 #
 # .. variable:: CPACK_DEBIAN_PACKAGE_CONTROL_EXTRA
 #
 #  * Mandatory : NO
 #  * Default   : -
 #
 #  This variable allow advanced user to add custom script to the
 #  control.tar.gz Typical usage is for conffiles, postinst, postrm, prerm.
 #  Usage::
 #
 #   set(CPACK_DEBIAN_PACKAGE_CONTROL_EXTRA
 #       "${CMAKE_CURRENT_SOURCE_DIR/prerm;${CMAKE_CURRENT_SOURCE_DIR}/postrm")


 #=============================================================================
 # Copyright 2007-2009 Kitware, Inc.
 # Copyright 2007-2009 Mathieu Malaterre <mathieu.malaterre@gmail.com>
 #
 # 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.)

 # CPack script for creating Debian package
 # Author: Mathieu Malaterre
 #
 # http://wiki.debian.org/HowToPackageForDebian

 if(CMAKE_BINARY_DIR)
   message(FATAL_ERROR "CPackDeb.cmake may only be used by CPack internally.")
 endif()

 if(NOT UNIX)
   message(FATAL_ERROR "CPackDeb.cmake may only be used under UNIX.")
 endif()

 # CPACK_DEBIAN_PACKAGE_SHLIBDEPS
 # If specify OFF, only user depends are used
 if(NOT DEFINED CPACK_DEBIAN_PACKAGE_SHLIBDEPS)
   set(CPACK_DEBIAN_PACKAGE_SHLIBDEPS OFF)
 endif()

 find_program(FAKEROOT_EXECUTABLE fakeroot)
 if(FAKEROOT_EXECUTABLE)
   set(CPACK_DEBIAN_FAKEROOT_EXECUTABLE ${FAKEROOT_EXECUTABLE})
 endif()

 if(CPACK_DEBIAN_PACKAGE_SHLIBDEPS)
   # dpkg-shlibdeps is a Debian utility for generating dependency list
   find_program(SHLIBDEPS_EXECUTABLE dpkg-shlibdeps)

   # Check version of the dpkg-shlibdeps tool using CPackRPM method
   if(SHLIBDEPS_EXECUTABLE)
     execute_process(COMMAND ${SHLIBDEPS_EXECUTABLE} --version
       OUTPUT_VARIABLE _TMP_VERSION
       ERROR_QUIET
       OUTPUT_STRIP_TRAILING_WHITESPACE)
     string(REGEX MATCH "dpkg-shlibdeps version ([0-9]+\\.[0-9]+\\.[0-9]+)"
       SHLIBDEPS_EXECUTABLE_VERSION
       ${_TMP_VERSION})
     set(SHLIBDEPS_EXECUTABLE_VERSION "${CMAKE_MATCH_1}")
     if(CPACK_DEBIAN_PACKAGE_DEBUG)
       message( "CPackDeb Debug: dpkg-shlibdeps version is <${SHLIBDEPS_EXECUTABLE_VERSION}>")
     endif()

     # Generating binary list - Get type of all install files
     execute_process(COMMAND find -type f
       COMMAND xargs file
       WORKING_DIRECTORY "${CPACK_TEMPORARY_DIRECTORY}"
       OUTPUT_VARIABLE CPACK_DEB_INSTALL_FILES)

     # Convert to CMake list
     string(REGEX REPLACE "\n" ";" CPACK_DEB_INSTALL_FILES ${CPACK_DEB_INSTALL_FILES})

     # Only dynamically linked ELF files are included
     # Extract only file name infront of ":"
     foreach ( _FILE ${CPACK_DEB_INSTALL_FILES})
       if ( ${_FILE} MATCHES "ELF.*dynamically linked")
          string(REGEX MATCH "(^.*):" _FILE_NAME ${_FILE})
          list(APPEND CPACK_DEB_BINARY_FILES ${CMAKE_MATCH_1})
       endif()
     endforeach()

     message( "CPackDeb: - Generating dependency list")

     # Create blank control file for running dpkg-shlibdeps
     # There might be some other way to invoke dpkg-shlibdeps without creating this file
     # but standard debian package should not have anything that can collide with this file or directory
     file(MAKE_DIRECTORY ${CPACK_TEMPORARY_DIRECTORY}/debian)
     file(WRITE ${CPACK_TEMPORARY_DIRECTORY}/debian/control "")

     # Execute dpkg-shlibdeps
     # --ignore-missing-info : allow dpkg-shlibdeps to run even if some libs do not belong to a package
     # -O : print to STDOUT
     execute_process(COMMAND ${SHLIBDEPS_EXECUTABLE} --ignore-missing-info -O ${CPACK_DEB_BINARY_FILES}
       WORKING_DIRECTORY "${CPACK_TEMPORARY_DIRECTORY}"
       OUTPUT_VARIABLE SHLIBDEPS_OUTPUT
       RESULT_VARIABLE SHLIBDEPS_RESULT
       ERROR_VARIABLE SHLIBDEPS_ERROR
       OUTPUT_STRIP_TRAILING_WHITESPACE )
     if(CPACK_DEBIAN_PACKAGE_DEBUG)
       # dpkg-shlibdeps will throw some warnings if some input files are not binary
       message( "CPackDeb Debug: dpkg-shlibdeps warnings \n${SHLIBDEPS_ERROR}")
     endif()
     if (NOT SHLIBDEPS_RESULT EQUAL 0)
       message (FATAL_ERROR "CPackDeb: dpkg-shlibdeps: ${SHLIBDEPS_ERROR}")
     endif ()

     #Get rid of prefix generated by dpkg-shlibdeps
     string (REGEX REPLACE "^.*Depends=" "" CPACK_DEBIAN_PACKAGE_AUTO_DEPENDS ${SHLIBDEPS_OUTPUT})

     if(CPACK_DEBIAN_PACKAGE_DEBUG)
       message( "CPackDeb Debug: Found dependency: ${CPACK_DEBIAN_PACKAGE_AUTO_DEPENDS}")
     endif()

     # Remove blank control file
     # Might not be safe if package actual contain file or directory named debian
     file(REMOVE_RECURSE "${CPACK_TEMPORARY_DIRECTORY}/debian")

     # Append user depend if set
     if (CPACK_DEBIAN_PACKAGE_DEPENDS)
       set (CPACK_DEBIAN_PACKAGE_DEPENDS "${CPACK_DEBIAN_PACKAGE_AUTO_DEPENDS}, ${CPACK_DEBIAN_PACKAGE_DEPENDS}")
     else ()
       set (CPACK_DEBIAN_PACKAGE_DEPENDS "${CPACK_DEBIAN_PACKAGE_AUTO_DEPENDS}")
     endif ()

   else ()
     if(CPACK_DEBIAN_PACKAGE_DEBUG)
       message( "CPackDeb Debug: Using only user-provided depends because dpkg-shlibdeps is not found.")
     endif()
   endif()

 else ()
   if(CPACK_DEBIAN_PACKAGE_DEBUG)
     message( "CPackDeb Debug: Using only user-provided depends")
   endif()
 endif()

 # Let's define the control file found in debian package:

 # Binary package:
 # http://www.debian.org/doc/debian-policy/ch-controlfields.html#s-binarycontrolfiles

 # DEBIAN/control
 # debian policy enforce lower case for package name
 # Package: (mandatory)
 if(NOT CPACK_DEBIAN_PACKAGE_NAME)
   string(TOLOWER "${CPACK_PACKAGE_NAME}" CPACK_DEBIAN_PACKAGE_NAME)
 endif()

 # Version: (mandatory)
 if(NOT CPACK_DEBIAN_PACKAGE_VERSION)
   if(NOT CPACK_PACKAGE_VERSION)
     message(FATAL_ERROR "CPackDeb: Debian package requires a package version")
   endif()
   set(CPACK_DEBIAN_PACKAGE_VERSION ${CPACK_PACKAGE_VERSION})
 endif()

 # Architecture: (mandatory)
 if(NOT CPACK_DEBIAN_PACKAGE_ARCHITECTURE)
   # There is no such thing as i686 architecture on debian, you should use i386 instead
   # $ dpkg --print-architecture
   find_program(DPKG_CMD dpkg)
   if(NOT DPKG_CMD)
     message(STATUS "CPackDeb: Can not find dpkg in your path, default to i386.")
     set(CPACK_DEBIAN_PACKAGE_ARCHITECTURE i386)
   endif()
   execute_process(COMMAND "${DPKG_CMD}" --print-architecture
     OUTPUT_VARIABLE CPACK_DEBIAN_PACKAGE_ARCHITECTURE
     OUTPUT_STRIP_TRAILING_WHITESPACE
     )
 endif()

 # have a look at get_property(result GLOBAL PROPERTY ENABLED_FEATURES),
 # this returns the successful find_package() calls, maybe this can help
 # Depends:
 # You should set: DEBIAN_PACKAGE_DEPENDS
 # TODO: automate 'objdump -p | grep NEEDED'
 if(NOT CPACK_DEBIAN_PACKAGE_DEPENDS)
   message(STATUS "CPACK_DEBIAN_PACKAGE_DEPENDS not set, the package will have no dependencies.")
 endif()

 # Maintainer: (mandatory)
 if(NOT CPACK_DEBIAN_PACKAGE_MAINTAINER)
   if(NOT CPACK_PACKAGE_CONTACT)
     message(FATAL_ERROR "CPackDeb: Debian package requires a maintainer for a package, set CPACK_PACKAGE_CONTACT or CPACK_DEBIAN_PACKAGE_MAINTAINER")
   endif()
   set(CPACK_DEBIAN_PACKAGE_MAINTAINER ${CPACK_PACKAGE_CONTACT})
 endif()

 # Description: (mandatory)
 if(NOT CPACK_DEBIAN_PACKAGE_DESCRIPTION)
   if(NOT CPACK_PACKAGE_DESCRIPTION_SUMMARY)
     message(FATAL_ERROR "CPackDeb: Debian package requires a summary for a package, set CPACK_PACKAGE_DESCRIPTION_SUMMARY or CPACK_DEBIAN_PACKAGE_DESCRIPTION")
   endif()
   set(CPACK_DEBIAN_PACKAGE_DESCRIPTION ${CPACK_PACKAGE_DESCRIPTION_SUMMARY})
 endif()

 # Section: (recommended)
 if(NOT CPACK_DEBIAN_PACKAGE_SECTION)
   set(CPACK_DEBIAN_PACKAGE_SECTION "devel")
 endif()

 # Priority: (recommended)
 if(NOT CPACK_DEBIAN_PACKAGE_PRIORITY)
   set(CPACK_DEBIAN_PACKAGE_PRIORITY "optional")
 endif()

 # Recommends:
 # You should set: CPACK_DEBIAN_PACKAGE_RECOMMENDS

 # Suggests:
 # You should set: CPACK_DEBIAN_PACKAGE_SUGGESTS

 # CPACK_DEBIAN_PACKAGE_CONTROL_EXTRA
 # This variable allow advanced user to add custom script to the control.tar.gz (inside the .deb archive)
 # Typical examples are:
 # - conffiles
 # - postinst
 # - postrm
 # - prerm"
 # Usage:
 # set(CPACK_DEBIAN_PACKAGE_CONTROL_EXTRA
 #    "${CMAKE_CURRENT_SOURCE_DIR/prerm;${CMAKE_CURRENT_SOURCE_DIR}/postrm")

 # Are we packaging components ?
 if(CPACK_DEB_PACKAGE_COMPONENT)
   set(CPACK_DEB_PACKAGE_COMPONENT_PART_NAME "-${CPACK_DEB_PACKAGE_COMPONENT}")
   string(TOLOWER "${CPACK_PACKAGE_NAME}${CPACK_DEB_PACKAGE_COMPONENT_PART_NAME}" CPACK_DEBIAN_PACKAGE_NAME)
 else()
   set(CPACK_DEB_PACKAGE_COMPONENT_PART_NAME "")
 endif()

 set(WDIR "${CPACK_TOPLEVEL_DIRECTORY}/${CPACK_PACKAGE_FILE_NAME}${CPACK_DEB_PACKAGE_COMPONENT_PART_PATH}")

 # Print out some debug information if we were asked for that
 if(CPACK_DEBIAN_PACKAGE_DEBUG)
    message("CPackDeb:Debug: CPACK_TOPLEVEL_DIRECTORY          = ${CPACK_TOPLEVEL_DIRECTORY}")
    message("CPackDeb:Debug: CPACK_TOPLEVEL_TAG                = ${CPACK_TOPLEVEL_TAG}")
    message("CPackDeb:Debug: CPACK_TEMPORARY_DIRECTORY         = ${CPACK_TEMPORARY_DIRECTORY}")
    message("CPackDeb:Debug: CPACK_OUTPUT_FILE_NAME            = ${CPACK_OUTPUT_FILE_NAME}")
    message("CPackDeb:Debug: CPACK_OUTPUT_FILE_PATH            = ${CPACK_OUTPUT_FILE_PATH}")
    message("CPackDeb:Debug: CPACK_PACKAGE_FILE_NAME           = ${CPACK_PACKAGE_FILE_NAME}")
    message("CPackDeb:Debug: CPACK_PACKAGE_INSTALL_DIRECTORY   = ${CPACK_PACKAGE_INSTALL_DIRECTORY}")
    message("CPackDeb:Debug: CPACK_TEMPORARY_PACKAGE_FILE_NAME = ${CPACK_TEMPORARY_PACKAGE_FILE_NAME}")
 endif()

 # For debian source packages:
 # debian/control
 # http://www.debian.org/doc/debian-policy/ch-controlfields.html#s-sourcecontrolfiles

 # .dsc
 # http://www.debian.org/doc/debian-policy/ch-controlfields.html#s-debiansourcecontrolfiles

 # Builds-Depends:
 #if(NOT CPACK_DEBIAN_PACKAGE_BUILDS_DEPENDS)
 #  set(CPACK_DEBIAN_PACKAGE_BUILDS_DEPENDS
 #    "debhelper (>> 5.0.0), libncurses5-dev, tcl8.4"
 #  )
 #endif()
	#.rst:
	# CPackDeb
	# --------
	#
	# The builtin (binary) CPack Deb generator (Unix only)
	#
	# Variables specific to CPack Debian (DEB) generator
	# ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
	#
	# CPackDeb may be used to create Deb package using CPack.
	# CPackDeb is a CPack generator thus it uses the CPACK_XXX variables
	# used by CPack : http://www.cmake.org/Wiki/CMake:CPackConfiguration.
	# CPackDeb generator should work on any linux host but it will produce
	# better deb package when Debian specific tools 'dpkg-xxx' are usable on
	# the build system.
	#
	# CPackDeb has specific features which are controlled by the specifics
	# CPACK_DEBIAN_XXX variables.You'll find a detailed usage on the wiki:
	# http://www.cmake.org/Wiki/CMake:CPackPackageGenerators#DEB_.28UNIX_only.29
	#
	# However as a handy reminder here comes the list of specific variables:
	#
	# .. variable:: CPACK_DEBIAN_PACKAGE_NAME
	#
	# * Mandatory : YES
	# * Default : CPACK_PACKAGE_NAME (lower case)
	#
	# The debian package summary
	#
	# .. variable:: CPACK_DEBIAN_PACKAGE_VERSION
	#
	# * Mandatory : YES
	# * Default : CPACK_PACKAGE_VERSION
	#
	# The debian package version
	#
	# .. variable:: CPACK_DEBIAN_PACKAGE_ARCHITECTURE
	#
	# * Mandatory : YES
	# * Default : Output of dpkg --print-architecture (or i386 if dpkg is not found)
	#
	# The debian package architecture
	#
	# .. variable:: CPACK_DEBIAN_PACKAGE_DEPENDS
	#
	# * Mandatory : NO
	# * Default : -
	#
	# May be used to set deb dependencies.
	#
	# .. variable:: CPACK_DEBIAN_PACKAGE_MAINTAINER
	#
	# * Mandatory : YES
	# * Default : CPACK_PACKAGE_CONTACT
	#
	# The debian package maintainer
	#
	# .. variable:: CPACK_DEBIAN_PACKAGE_DESCRIPTION
	#
	# * Mandatory : YES
	# * Default : CPACK_PACKAGE_DESCRIPTION_SUMMARY
	#
	# The debian package description
	#
	# .. variable:: CPACK_DEBIAN_PACKAGE_SECTION
	#
	# * Mandatory : YES
	# * Default : 'devel'
	#
	# The debian package section
	#
	# .. variable:: CPACK_DEBIAN_PACKAGE_PRIORITY
	#
	# * Mandatory : YES
	# * Default : 'optional'
	#
	# The debian package priority
	#
	# .. variable:: CPACK_DEBIAN_PACKAGE_HOMEPAGE
	#
	# * Mandatory : NO
	# * Default : -
	#
	# The URL of the web site for this package, preferably (when applicable) the
	# site from which the original source can be obtained and any additional
	# upstream documentation or information may be found.
	# The content of this field is a simple URL without any surrounding
	# characters such as <>.
	#
	# .. variable:: CPACK_DEBIAN_PACKAGE_SHLIBDEPS
	#
	# * Mandatory : NO
	# * Default : OFF
	#
	# May be set to ON in order to use dpkg-shlibdeps to generate
	# better package dependency list.
	# You may need set CMAKE_INSTALL_RPATH toi appropriate value
	# if you use this feature, because if you don't dpkg-shlibdeps
	# may fail to find your own shared libs.
	# See http://www.cmake.org/Wiki/CMake_RPATH_handling.
	#
	# .. variable:: CPACK_DEBIAN_PACKAGE_DEBUG
	#
	# * Mandatory : NO
	# * Default : -
	#
	# May be set when invoking cpack in order to trace debug information
	# during CPackDeb run.
	#
	# .. variable:: CPACK_DEBIAN_PACKAGE_PREDEPENDS
	#
	# * Mandatory : NO
	# * Default : -
	#
	# see http://www.debian.org/doc/debian-policy/ch-relationships.html#s-binarydeps
	# This field is like Depends, except that it also forces dpkg to complete installation of
	# the packages named before even starting the installation of the package which declares
	# the pre-dependency.
	#
	# .. variable:: CPACK_DEBIAN_PACKAGE_ENHANCES
	#
	# * Mandatory : NO
	# * Default : -
	#
	# see http://www.debian.org/doc/debian-policy/ch-relationships.html#s-binarydeps
	# This field is similar to Suggests but works in the opposite direction.
	# It is used to declare that a package can enhance the functionality of another package.
	#
	# .. variable:: CPACK_DEBIAN_PACKAGE_BREAKS
	#
	# * Mandatory : NO
	# * Default : -
	#
	# see http://www.debian.org/doc/debian-policy/ch-relationships.html#s-binarydeps
	# When one binary package declares that it breaks another, dpkg will refuse to allow the
	# package which declares Breaks be installed unless the broken package is deconfigured first,
	# and it will refuse to allow the broken package to be reconfigured.
	#
	# .. variable:: CPACK_DEBIAN_PACKAGE_CONFLICTS
	#
	# * Mandatory : NO
	# * Default : -
	#
	# see http://www.debian.org/doc/debian-policy/ch-relationships.html#s-binarydeps
	# When one binary package declares a conflict with another using a Conflicts field,
	# dpkg will refuse to allow them to be installed on the system at the same time.
	#
	# .. variable:: CPACK_DEBIAN_PACKAGE_PROVIDES
	#
	# * Mandatory : NO
	# * Default : -
	#
	# see http://www.debian.org/doc/debian-policy/ch-relationships.html#s-binarydeps
	# A virtual package is one which appears in the Provides control field of another package.
	#
	# .. variable:: CPACK_DEBIAN_PACKAGE_REPLACES
	#
	# * Mandatory : NO
	# * Default : -
	#
	# see http://www.debian.org/doc/debian-policy/ch-relationships.html#s-binarydeps
	# Packages can declare in their control file that they should overwrite
	# files in certain other packages, or completely replace other packages.
	#
	# .. variable:: CPACK_DEBIAN_PACKAGE_RECOMMENDS
	#
	# * Mandatory : NO
	# * Default : -
	#
	# see http://www.debian.org/doc/debian-policy/ch-relationships.html#s-binarydeps
	# Allows packages to declare a strong, but not absolute, dependency on other packages.
	#
	# .. variable:: CPACK_DEBIAN_PACKAGE_SUGGESTS
	#
	# * Mandatory : NO
	# * Default : -
	#
	# see http://www.debian.org/doc/debian-policy/ch-relationships.html#s-binarydeps
	# Allows packages to declare a suggested package install grouping.
	#
	# .. variable:: CPACK_DEBIAN_PACKAGE_CONTROL_EXTRA
	#
	# * Mandatory : NO
	# * Default : -
	#
	# This variable allow advanced user to add custom script to the
	# control.tar.gz Typical usage is for conffiles, postinst, postrm, prerm.
	# Usage::
	#
	# set(CPACK_DEBIAN_PACKAGE_CONTROL_EXTRA
	# "${CMAKE_CURRENT_SOURCE_DIR/prerm;${CMAKE_CURRENT_SOURCE_DIR}/postrm")


	#=============================================================================
	# Copyright 2007-2009 Kitware, Inc.
	# Copyright 2007-2009 Mathieu Malaterre <mathieu.malaterre@gmail.com>
	#
	# 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.)

	# CPack script for creating Debian package
	# Author: Mathieu Malaterre
	#
	# http://wiki.debian.org/HowToPackageForDebian

	if(CMAKE_BINARY_DIR)
	message(FATAL_ERROR "CPackDeb.cmake may only be used by CPack internally.")
	endif()

	if(NOT UNIX)
	message(FATAL_ERROR "CPackDeb.cmake may only be used under UNIX.")
	endif()

	# CPACK_DEBIAN_PACKAGE_SHLIBDEPS
	# If specify OFF, only user depends are used
	if(NOT DEFINED CPACK_DEBIAN_PACKAGE_SHLIBDEPS)
	set(CPACK_DEBIAN_PACKAGE_SHLIBDEPS OFF)
	endif()

	find_program(FAKEROOT_EXECUTABLE fakeroot)
	if(FAKEROOT_EXECUTABLE)
	set(CPACK_DEBIAN_FAKEROOT_EXECUTABLE ${FAKEROOT_EXECUTABLE})
	endif()

	if(CPACK_DEBIAN_PACKAGE_SHLIBDEPS)
	# dpkg-shlibdeps is a Debian utility for generating dependency list
	find_program(SHLIBDEPS_EXECUTABLE dpkg-shlibdeps)

	# Check version of the dpkg-shlibdeps tool using CPackRPM method
	if(SHLIBDEPS_EXECUTABLE)
	execute_process(COMMAND ${SHLIBDEPS_EXECUTABLE} --version
	OUTPUT_VARIABLE _TMP_VERSION
	ERROR_QUIET
	OUTPUT_STRIP_TRAILING_WHITESPACE)
	string(REGEX MATCH "dpkg-shlibdeps version ([0-9]+\\.[0-9]+\\.[0-9]+)"
	SHLIBDEPS_EXECUTABLE_VERSION
	${_TMP_VERSION})
	set(SHLIBDEPS_EXECUTABLE_VERSION "${CMAKE_MATCH_1}")
	if(CPACK_DEBIAN_PACKAGE_DEBUG)
	message( "CPackDeb Debug: dpkg-shlibdeps version is <${SHLIBDEPS_EXECUTABLE_VERSION}>")
	endif()

	# Generating binary list - Get type of all install files
	execute_process(COMMAND find -type f
	COMMAND xargs file
	WORKING_DIRECTORY "${CPACK_TEMPORARY_DIRECTORY}"
	OUTPUT_VARIABLE CPACK_DEB_INSTALL_FILES)

	# Convert to CMake list
	string(REGEX REPLACE "\n" ";" CPACK_DEB_INSTALL_FILES ${CPACK_DEB_INSTALL_FILES})

	# Only dynamically linked ELF files are included
	# Extract only file name infront of ":"
	foreach ( _FILE ${CPACK_DEB_INSTALL_FILES})
	if ( ${_FILE} MATCHES "ELF.*dynamically linked")
	string(REGEX MATCH "(^.*):" _FILE_NAME ${_FILE})
	list(APPEND CPACK_DEB_BINARY_FILES ${CMAKE_MATCH_1})
	endif()
	endforeach()

	message( "CPackDeb: - Generating dependency list")

	# Create blank control file for running dpkg-shlibdeps
	# There might be some other way to invoke dpkg-shlibdeps without creating this file
	# but standard debian package should not have anything that can collide with this file or directory
	file(MAKE_DIRECTORY ${CPACK_TEMPORARY_DIRECTORY}/debian)
	file(WRITE ${CPACK_TEMPORARY_DIRECTORY}/debian/control "")

	# Execute dpkg-shlibdeps
	# --ignore-missing-info : allow dpkg-shlibdeps to run even if some libs do not belong to a package
	# -O : print to STDOUT
	execute_process(COMMAND ${SHLIBDEPS_EXECUTABLE} --ignore-missing-info -O ${CPACK_DEB_BINARY_FILES}
	WORKING_DIRECTORY "${CPACK_TEMPORARY_DIRECTORY}"
	OUTPUT_VARIABLE SHLIBDEPS_OUTPUT
	RESULT_VARIABLE SHLIBDEPS_RESULT
	ERROR_VARIABLE SHLIBDEPS_ERROR
	OUTPUT_STRIP_TRAILING_WHITESPACE )
	if(CPACK_DEBIAN_PACKAGE_DEBUG)
	# dpkg-shlibdeps will throw some warnings if some input files are not binary
	message( "CPackDeb Debug: dpkg-shlibdeps warnings \n${SHLIBDEPS_ERROR}")
	endif()
	if (NOT SHLIBDEPS_RESULT EQUAL 0)
	message (FATAL_ERROR "CPackDeb: dpkg-shlibdeps: ${SHLIBDEPS_ERROR}")
	endif ()

	#Get rid of prefix generated by dpkg-shlibdeps
	string (REGEX REPLACE "^.*Depends=" "" CPACK_DEBIAN_PACKAGE_AUTO_DEPENDS ${SHLIBDEPS_OUTPUT})

	if(CPACK_DEBIAN_PACKAGE_DEBUG)
	message( "CPackDeb Debug: Found dependency: ${CPACK_DEBIAN_PACKAGE_AUTO_DEPENDS}")
	endif()

	# Remove blank control file
	# Might not be safe if package actual contain file or directory named debian
	file(REMOVE_RECURSE "${CPACK_TEMPORARY_DIRECTORY}/debian")

	# Append user depend if set
	if (CPACK_DEBIAN_PACKAGE_DEPENDS)
	set (CPACK_DEBIAN_PACKAGE_DEPENDS "${CPACK_DEBIAN_PACKAGE_AUTO_DEPENDS}, ${CPACK_DEBIAN_PACKAGE_DEPENDS}")
	else ()
	set (CPACK_DEBIAN_PACKAGE_DEPENDS "${CPACK_DEBIAN_PACKAGE_AUTO_DEPENDS}")
	endif ()

	else ()
	if(CPACK_DEBIAN_PACKAGE_DEBUG)
	message( "CPackDeb Debug: Using only user-provided depends because dpkg-shlibdeps is not found.")
	endif()
	endif()

	else ()
	if(CPACK_DEBIAN_PACKAGE_DEBUG)
	message( "CPackDeb Debug: Using only user-provided depends")
	endif()
	endif()

	# Let's define the control file found in debian package:

	# Binary package:
	# http://www.debian.org/doc/debian-policy/ch-controlfields.html#s-binarycontrolfiles

	# DEBIAN/control
	# debian policy enforce lower case for package name
	# Package: (mandatory)
	if(NOT CPACK_DEBIAN_PACKAGE_NAME)
	string(TOLOWER "${CPACK_PACKAGE_NAME}" CPACK_DEBIAN_PACKAGE_NAME)
	endif()

	# Version: (mandatory)
	if(NOT CPACK_DEBIAN_PACKAGE_VERSION)
	if(NOT CPACK_PACKAGE_VERSION)
	message(FATAL_ERROR "CPackDeb: Debian package requires a package version")
	endif()
	set(CPACK_DEBIAN_PACKAGE_VERSION ${CPACK_PACKAGE_VERSION})
	endif()

	# Architecture: (mandatory)
	if(NOT CPACK_DEBIAN_PACKAGE_ARCHITECTURE)
	# There is no such thing as i686 architecture on debian, you should use i386 instead
	# $ dpkg --print-architecture
	find_program(DPKG_CMD dpkg)
	if(NOT DPKG_CMD)
	message(STATUS "CPackDeb: Can not find dpkg in your path, default to i386.")
	set(CPACK_DEBIAN_PACKAGE_ARCHITECTURE i386)
	endif()
	execute_process(COMMAND "${DPKG_CMD}" --print-architecture
	OUTPUT_VARIABLE CPACK_DEBIAN_PACKAGE_ARCHITECTURE
	OUTPUT_STRIP_TRAILING_WHITESPACE
	)
	endif()

	# have a look at get_property(result GLOBAL PROPERTY ENABLED_FEATURES),
	# this returns the successful find_package() calls, maybe this can help
	# Depends:
	# You should set: DEBIAN_PACKAGE_DEPENDS
	# TODO: automate 'objdump -p \| grep NEEDED'
	if(NOT CPACK_DEBIAN_PACKAGE_DEPENDS)
	message(STATUS "CPACK_DEBIAN_PACKAGE_DEPENDS not set, the package will have no dependencies.")
	endif()

	# Maintainer: (mandatory)
	if(NOT CPACK_DEBIAN_PACKAGE_MAINTAINER)
	if(NOT CPACK_PACKAGE_CONTACT)
	message(FATAL_ERROR "CPackDeb: Debian package requires a maintainer for a package, set CPACK_PACKAGE_CONTACT or CPACK_DEBIAN_PACKAGE_MAINTAINER")
	endif()
	set(CPACK_DEBIAN_PACKAGE_MAINTAINER ${CPACK_PACKAGE_CONTACT})
	endif()

	# Description: (mandatory)
	if(NOT CPACK_DEBIAN_PACKAGE_DESCRIPTION)
	if(NOT CPACK_PACKAGE_DESCRIPTION_SUMMARY)
	message(FATAL_ERROR "CPackDeb: Debian package requires a summary for a package, set CPACK_PACKAGE_DESCRIPTION_SUMMARY or CPACK_DEBIAN_PACKAGE_DESCRIPTION")
	endif()
	set(CPACK_DEBIAN_PACKAGE_DESCRIPTION ${CPACK_PACKAGE_DESCRIPTION_SUMMARY})
	endif()

	# Section: (recommended)
	if(NOT CPACK_DEBIAN_PACKAGE_SECTION)
	set(CPACK_DEBIAN_PACKAGE_SECTION "devel")
	endif()

	# Priority: (recommended)
	if(NOT CPACK_DEBIAN_PACKAGE_PRIORITY)
	set(CPACK_DEBIAN_PACKAGE_PRIORITY "optional")
	endif()

	# Recommends:
	# You should set: CPACK_DEBIAN_PACKAGE_RECOMMENDS

	# Suggests:
	# You should set: CPACK_DEBIAN_PACKAGE_SUGGESTS

	# CPACK_DEBIAN_PACKAGE_CONTROL_EXTRA
	# This variable allow advanced user to add custom script to the control.tar.gz (inside the .deb archive)
	# Typical examples are:
	# - conffiles
	# - postinst
	# - postrm
	# - prerm"
	# Usage:
	# set(CPACK_DEBIAN_PACKAGE_CONTROL_EXTRA
	# "${CMAKE_CURRENT_SOURCE_DIR/prerm;${CMAKE_CURRENT_SOURCE_DIR}/postrm")

	# Are we packaging components ?
	if(CPACK_DEB_PACKAGE_COMPONENT)
	set(CPACK_DEB_PACKAGE_COMPONENT_PART_NAME "-${CPACK_DEB_PACKAGE_COMPONENT}")
	string(TOLOWER "${CPACK_PACKAGE_NAME}${CPACK_DEB_PACKAGE_COMPONENT_PART_NAME}" CPACK_DEBIAN_PACKAGE_NAME)
	else()
	set(CPACK_DEB_PACKAGE_COMPONENT_PART_NAME "")
	endif()

	set(WDIR "${CPACK_TOPLEVEL_DIRECTORY}/${CPACK_PACKAGE_FILE_NAME}${CPACK_DEB_PACKAGE_COMPONENT_PART_PATH}")

	# Print out some debug information if we were asked for that
	if(CPACK_DEBIAN_PACKAGE_DEBUG)
	message("CPackDeb:Debug: CPACK_TOPLEVEL_DIRECTORY = ${CPACK_TOPLEVEL_DIRECTORY}")
	message("CPackDeb:Debug: CPACK_TOPLEVEL_TAG = ${CPACK_TOPLEVEL_TAG}")
	message("CPackDeb:Debug: CPACK_TEMPORARY_DIRECTORY = ${CPACK_TEMPORARY_DIRECTORY}")
	message("CPackDeb:Debug: CPACK_OUTPUT_FILE_NAME = ${CPACK_OUTPUT_FILE_NAME}")
	message("CPackDeb:Debug: CPACK_OUTPUT_FILE_PATH = ${CPACK_OUTPUT_FILE_PATH}")
	message("CPackDeb:Debug: CPACK_PACKAGE_FILE_NAME = ${CPACK_PACKAGE_FILE_NAME}")
	message("CPackDeb:Debug: CPACK_PACKAGE_INSTALL_DIRECTORY = ${CPACK_PACKAGE_INSTALL_DIRECTORY}")
	message("CPackDeb:Debug: CPACK_TEMPORARY_PACKAGE_FILE_NAME = ${CPACK_TEMPORARY_PACKAGE_FILE_NAME}")
	endif()

	# For debian source packages:
	# debian/control
	# http://www.debian.org/doc/debian-policy/ch-controlfields.html#s-sourcecontrolfiles

	# .dsc
	# http://www.debian.org/doc/debian-policy/ch-controlfields.html#s-debiansourcecontrolfiles

	# Builds-Depends:
	#if(NOT CPACK_DEBIAN_PACKAGE_BUILDS_DEPENDS)
	# set(CPACK_DEBIAN_PACKAGE_BUILDS_DEPENDS
	# "debhelper (>> 5.0.0), libncurses5-dev, tcl8.4"
	# )
	#endif()