m4/framework.m4 - platform/external/ImageMagick - Gitiles

 #  http://svn.saurik.com/repos/cycript/trunk/framework.m4
 #
 #                    GNU LESSER GENERAL PUBLIC LICENSE
 #                        Version 3, 29 June 2007
 #
 #  Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
 #  Everyone is permitted to copy and distribute verbatim copies
 #  of this license document, but changing it is not allowed.
 #
 #
 #   This version of the GNU Lesser General Public License incorporates
 # the terms and conditions of version 3 of the GNU General Public
 # License, supplemented by the additional permissions listed below.
 #
 #   0. Additional Definitions.
 #
 #   As used herein, "this License" refers to version 3 of the GNU Lesser
 # General Public License, and the "GNU GPL" refers to version 3 of the GNU
 # General Public License.
 #
 #   "The Library" refers to a covered work governed by this License,
 # other than an Application or a Combined Work as defined below.
 #
 #   An "Application" is any work that makes use of an interface provided
 # by the Library, but which is not otherwise based on the Library.
 # Defining a subclass of a class defined by the Library is deemed a mode
 # of using an interface provided by the Library.
 #
 #   A "Combined Work" is a work produced by combining or linking an
 # Application with the Library.  The particular version of the Library
 # with which the Combined Work was made is also called the "Linked
 # Version".
 #
 #   The "Minimal Corresponding Source" for a Combined Work means the
 # Corresponding Source for the Combined Work, excluding any source code
 # for portions of the Combined Work that, considered in isolation, are
 # based on the Application, and not on the Linked Version.
 #
 #   The "Corresponding Application Code" for a Combined Work means the
 # object code and/or source code for the Application, including any data
 # and utility programs needed for reproducing the Combined Work from the
 # Application, but excluding the System Libraries of the Combined Work.
 #
 #   1. Exception to Section 3 of the GNU GPL.
 #
 #   You may convey a covered work under sections 3 and 4 of this License
 # without being bound by section 3 of the GNU GPL.
 #
 #   2. Conveying Modified Versions.
 #
 #   If you modify a copy of the Library, and, in your modifications, a
 # facility refers to a function or data to be supplied by an Application
 # that uses the facility (other than as an argument passed when the
 # facility is invoked), then you may convey a copy of the modified
 # version:
 #
 #    a) under this License, provided that you make a good faith effort to
 #    ensure that, in the event an Application does not supply the
 #    function or data, the facility still operates, and performs
 #    whatever part of its purpose remains meaningful, or
 #
 #    b) under the GNU GPL, with none of the additional permissions of
 #    this License applicable to that copy.
 #
 #   3. Object Code Incorporating Material from Library Header Files.
 #
 #   The object code form of an Application may incorporate material from
 # a header file that is part of the Library.  You may convey such object
 # code under terms of your choice, provided that, if the incorporated
 # material is not limited to numerical parameters, data structure
 # layouts and accessors, or small macros, inline functions and templates
 # (ten or fewer lines in length), you do both of the following:
 #
 #    a) Give prominent notice with each copy of the object code that the
 #    Library is used in it and that the Library and its use are
 #    covered by this License.
 #
 #    b) Accompany the object code with a copy of the GNU GPL and this license
 #    document.
 #
 #   4. Combined Works.
 #
 #   You may convey a Combined Work under terms of your choice that,
 # taken together, effectively do not restrict modification of the
 # portions of the Library contained in the Combined Work and reverse
 # engineering for debugging such modifications, if you also do each of
 # the following:
 #
 #    a) Give prominent notice with each copy of the Combined Work that
 #    the Library is used in it and that the Library and its use are
 #    covered by this License.
 #
 #    b) Accompany the Combined Work with a copy of the GNU GPL and this license
 #    document.
 #
 #    c) For a Combined Work that displays copyright notices during
 #    execution, include the copyright notice for the Library among
 #    these notices, as well as a reference directing the user to the
 #    copies of the GNU GPL and this license document.
 #
 #    d) Do one of the following:
 #
 #        0) Convey the Minimal Corresponding Source under the terms of this
 #        License, and the Corresponding Application Code in a form
 #        suitable for, and under terms that permit, the user to
 #        recombine or relink the Application with a modified version of
 #        the Linked Version to produce a modified Combined Work, in the
 #        manner specified by section 6 of the GNU GPL for conveying
 #        Corresponding Source.
 #
 #        1) Use a suitable shared library mechanism for linking with the
 #        Library.  A suitable mechanism is one that (a) uses at run time
 #        a copy of the Library already present on the user's computer
 #        system, and (b) will operate properly with a modified version
 #        of the Library that is interface-compatible with the Linked
 #        Version.
 #
 #    e) Provide Installation Information, but only if you would otherwise
 #    be required to provide such information under section 6 of the
 #    GNU GPL, and only to the extent that such information is
 #    necessary to install and execute a modified version of the
 #    Combined Work produced by recombining or relinking the
 #    Application with a modified version of the Linked Version. (If
 #    you use option 4d0, the Installation Information must accompany
 #    the Minimal Corresponding Source and Corresponding Application
 #    Code. If you use option 4d1, you must provide the Installation
 #    Information in the manner specified by section 6 of the GNU GPL
 #    for conveying Corresponding Source.)
 #
 #   5. Combined Libraries.
 #
 #   You may place library facilities that are a work based on the
 # Library side by side in a single library together with other library
 # facilities that are not Applications and are not covered by this
 # License, and convey such a combined library under terms of your
 # choice, if you do both of the following:
 #
 #    a) Accompany the combined library with a copy of the same work based
 #    on the Library, uncombined with any other library facilities,
 #    conveyed under the terms of this License.
 #
 #    b) Give prominent notice with the combined library that part of it
 #    is a work based on the Library, and explaining where to find the
 #    accompanying uncombined form of the same work.
 #
 #   6. Revised Versions of the GNU Lesser General Public License.
 #
 #   The Free Software Foundation may publish revised and/or new versions
 # of the GNU Lesser General Public License from time to time. Such new
 # versions will be similar in spirit to the present version, but may
 # differ in detail to address new problems or concerns.
 #
 #   Each version is given a distinguishing version number. If the
 # Library as you received it specifies that a certain numbered version
 # of the GNU Lesser General Public License "or any later version"
 # applies to it, you have the option of following the terms and
 # conditions either of that published version or of any later version
 # published by the Free Software Foundation. If the Library as you
 # received it does not specify a version number of the GNU Lesser
 # General Public License, you may choose any version of the GNU Lesser
 # General Public License ever published by the Free Software Foundation.
 #
 #   If the Library as you received it specifies that a proxy can decide
 # whether future versions of the GNU Lesser General Public License shall
 # apply, that proxy's public statement of acceptance of any version is
 # permanent authorization for you to choose that version for the
 # Library.

 # AC_CHECK_FRAMEWORK(FRAMEWORK, FUNCTION,
 #              [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND],
 #              [OTHER-LIBRARIES])
 # ------------------------------------------------------
 #
 # Use a cache variable name containing both the framework and function name,
 # because the test really is for framework $1 defining function $2, not
 # just for framework $1.  Separate tests with the same $1 and different $2s
 # may have different results.
 #
 # Note that using directly AS_VAR_PUSHDEF([ac_Framework], [ac_cv_framework_$1_$2])
 # is asking for troubles, since AC_CHECK_FRAMEWORK($framework, fun) would give
 # ac_cv_framework_$framework_fun, which is definitely not what was meant.  Hence
 # the AS_LITERAL_IF indirection.
 #
 # FIXME: This macro is extremely suspicious.  It DEFINEs unconditionally,
 # whatever the FUNCTION, in addition to not being a *S macro.  Note
 # that the cache does depend upon the function we are looking for.
 #
 # It is on purpose we used `ac_check_framework_save_LIBS' and not just
 # `ac_save_LIBS': there are many macros which don't want to see `LIBS'
 # changed but still want to use AC_CHECK_FRAMEWORK, so they save `LIBS'.
 # And ``ac_save_LIBS' is too tempting a name, so let's leave them some
 # freedom.
 AC_DEFUN([AC_CHECK_FRAMEWORK],
 [m4_ifval([$3], , [AH_CHECK_FRAMEWORK([$1])])dnl
 AS_LITERAL_IF([$1],
          [AS_VAR_PUSHDEF([ac_Framework], [ac_cv_framework_$1_$2])],
          [AS_VAR_PUSHDEF([ac_Framework], [ac_cv_framework_$1''_$2])])dnl
 AC_CACHE_CHECK([for $2 in $1 framework], ac_Framework,
 [ac_check_framework_save_LIBS=$LIBS
 LIBS="-framework $1 $5 $LIBS"
 AC_LINK_IFELSE([AC_LANG_CALL([], [$2])],
           [AS_VAR_SET(ac_Framework, yes)],
           [AS_VAR_SET(ac_Framework, no)])
 LIBS=$ac_check_framework_save_LIBS])
 AS_IF([test AS_VAR_GET(ac_Framework) = yes],
       [m4_default([$3], [AC_DEFINE_UNQUOTED(AS_TR_CPP(HAVE_FRAMEWORK_$1))
   LIBS="-framework $1 $LIBS"
 ])],
       [$4])dnl
 AS_VAR_POPDEF([ac_Framework])dnl
 ])# AC_CHECK_FRAMEWORK

 # AH_CHECK_FRAMEWORK(FRAMEWORK)
 # ---------------------
 m4_define([AH_CHECK_FRAMEWORK],
 [AH_TEMPLATE(AS_TR_CPP(HAVE_FRAMEWORK_$1),
         [Define to 1 if you have the `]$1[' framework (-framework ]$1[).])])
	# http://svn.saurik.com/repos/cycript/trunk/framework.m4
	#
	# GNU LESSER GENERAL PUBLIC LICENSE
	# Version 3, 29 June 2007
	#
	# Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
	# Everyone is permitted to copy and distribute verbatim copies
	# of this license document, but changing it is not allowed.
	#
	#
	# This version of the GNU Lesser General Public License incorporates
	# the terms and conditions of version 3 of the GNU General Public
	# License, supplemented by the additional permissions listed below.
	#
	# 0. Additional Definitions.
	#
	# As used herein, "this License" refers to version 3 of the GNU Lesser
	# General Public License, and the "GNU GPL" refers to version 3 of the GNU
	# General Public License.
	#
	# "The Library" refers to a covered work governed by this License,
	# other than an Application or a Combined Work as defined below.
	#
	# An "Application" is any work that makes use of an interface provided
	# by the Library, but which is not otherwise based on the Library.
	# Defining a subclass of a class defined by the Library is deemed a mode
	# of using an interface provided by the Library.
	#
	# A "Combined Work" is a work produced by combining or linking an
	# Application with the Library. The particular version of the Library
	# with which the Combined Work was made is also called the "Linked
	# Version".
	#
	# The "Minimal Corresponding Source" for a Combined Work means the
	# Corresponding Source for the Combined Work, excluding any source code
	# for portions of the Combined Work that, considered in isolation, are
	# based on the Application, and not on the Linked Version.
	#
	# The "Corresponding Application Code" for a Combined Work means the
	# object code and/or source code for the Application, including any data
	# and utility programs needed for reproducing the Combined Work from the
	# Application, but excluding the System Libraries of the Combined Work.
	#
	# 1. Exception to Section 3 of the GNU GPL.
	#
	# You may convey a covered work under sections 3 and 4 of this License
	# without being bound by section 3 of the GNU GPL.
	#
	# 2. Conveying Modified Versions.
	#
	# If you modify a copy of the Library, and, in your modifications, a
	# facility refers to a function or data to be supplied by an Application
	# that uses the facility (other than as an argument passed when the
	# facility is invoked), then you may convey a copy of the modified
	# version:
	#
	# a) under this License, provided that you make a good faith effort to
	# ensure that, in the event an Application does not supply the
	# function or data, the facility still operates, and performs
	# whatever part of its purpose remains meaningful, or
	#
	# b) under the GNU GPL, with none of the additional permissions of
	# this License applicable to that copy.
	#
	# 3. Object Code Incorporating Material from Library Header Files.
	#
	# The object code form of an Application may incorporate material from
	# a header file that is part of the Library. You may convey such object
	# code under terms of your choice, provided that, if the incorporated
	# material is not limited to numerical parameters, data structure
	# layouts and accessors, or small macros, inline functions and templates
	# (ten or fewer lines in length), you do both of the following:
	#
	# a) Give prominent notice with each copy of the object code that the
	# Library is used in it and that the Library and its use are
	# covered by this License.
	#
	# b) Accompany the object code with a copy of the GNU GPL and this license
	# document.
	#
	# 4. Combined Works.
	#
	# You may convey a Combined Work under terms of your choice that,
	# taken together, effectively do not restrict modification of the
	# portions of the Library contained in the Combined Work and reverse
	# engineering for debugging such modifications, if you also do each of
	# the following:
	#
	# a) Give prominent notice with each copy of the Combined Work that
	# the Library is used in it and that the Library and its use are
	# covered by this License.
	#
	# b) Accompany the Combined Work with a copy of the GNU GPL and this license
	# document.
	#
	# c) For a Combined Work that displays copyright notices during
	# execution, include the copyright notice for the Library among
	# these notices, as well as a reference directing the user to the
	# copies of the GNU GPL and this license document.
	#
	# d) Do one of the following:
	#
	# 0) Convey the Minimal Corresponding Source under the terms of this
	# License, and the Corresponding Application Code in a form
	# suitable for, and under terms that permit, the user to
	# recombine or relink the Application with a modified version of
	# the Linked Version to produce a modified Combined Work, in the
	# manner specified by section 6 of the GNU GPL for conveying
	# Corresponding Source.
	#
	# 1) Use a suitable shared library mechanism for linking with the
	# Library. A suitable mechanism is one that (a) uses at run time
	# a copy of the Library already present on the user's computer
	# system, and (b) will operate properly with a modified version
	# of the Library that is interface-compatible with the Linked
	# Version.
	#
	# e) Provide Installation Information, but only if you would otherwise
	# be required to provide such information under section 6 of the
	# GNU GPL, and only to the extent that such information is
	# necessary to install and execute a modified version of the
	# Combined Work produced by recombining or relinking the
	# Application with a modified version of the Linked Version. (If
	# you use option 4d0, the Installation Information must accompany
	# the Minimal Corresponding Source and Corresponding Application
	# Code. If you use option 4d1, you must provide the Installation
	# Information in the manner specified by section 6 of the GNU GPL
	# for conveying Corresponding Source.)
	#
	# 5. Combined Libraries.
	#
	# You may place library facilities that are a work based on the
	# Library side by side in a single library together with other library
	# facilities that are not Applications and are not covered by this
	# License, and convey such a combined library under terms of your
	# choice, if you do both of the following:
	#
	# a) Accompany the combined library with a copy of the same work based
	# on the Library, uncombined with any other library facilities,
	# conveyed under the terms of this License.
	#
	# b) Give prominent notice with the combined library that part of it
	# is a work based on the Library, and explaining where to find the
	# accompanying uncombined form of the same work.
	#
	# 6. Revised Versions of the GNU Lesser General Public License.
	#
	# The Free Software Foundation may publish revised and/or new versions
	# of the GNU Lesser General Public License from time to time. Such new
	# versions will be similar in spirit to the present version, but may
	# differ in detail to address new problems or concerns.
	#
	# Each version is given a distinguishing version number. If the
	# Library as you received it specifies that a certain numbered version
	# of the GNU Lesser General Public License "or any later version"
	# applies to it, you have the option of following the terms and
	# conditions either of that published version or of any later version
	# published by the Free Software Foundation. If the Library as you
	# received it does not specify a version number of the GNU Lesser
	# General Public License, you may choose any version of the GNU Lesser
	# General Public License ever published by the Free Software Foundation.
	#
	# If the Library as you received it specifies that a proxy can decide
	# whether future versions of the GNU Lesser General Public License shall
	# apply, that proxy's public statement of acceptance of any version is
	# permanent authorization for you to choose that version for the
	# Library.

	# AC_CHECK_FRAMEWORK(FRAMEWORK, FUNCTION,
	# [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND],
	# [OTHER-LIBRARIES])
	# ------------------------------------------------------
	#
	# Use a cache variable name containing both the framework and function name,
	# because the test really is for framework $1 defining function $2, not
	# just for framework $1. Separate tests with the same $1 and different $2s
	# may have different results.
	#
	# Note that using directly AS_VAR_PUSHDEF([ac_Framework], [ac_cv_framework_$1_$2])
	# is asking for troubles, since AC_CHECK_FRAMEWORK($framework, fun) would give
	# ac_cv_framework_$framework_fun, which is definitely not what was meant. Hence
	# the AS_LITERAL_IF indirection.
	#
	# FIXME: This macro is extremely suspicious. It DEFINEs unconditionally,
	# whatever the FUNCTION, in addition to not being a *S macro. Note
	# that the cache does depend upon the function we are looking for.
	#
	# It is on purpose we used `ac_check_framework_save_LIBS' and not just
	# `ac_save_LIBS': there are many macros which don't want to see `LIBS'
	# changed but still want to use AC_CHECK_FRAMEWORK, so they save `LIBS'.
	# And ``ac_save_LIBS' is too tempting a name, so let's leave them some
	# freedom.
	AC_DEFUN([AC_CHECK_FRAMEWORK],
	[m4_ifval([$3], , [AH_CHECK_FRAMEWORK([$1])])dnl
	AS_LITERAL_IF([$1],
	[AS_VAR_PUSHDEF([ac_Framework], [ac_cv_framework_$1_$2])],
	[AS_VAR_PUSHDEF([ac_Framework], [ac_cv_framework_$1''_$2])])dnl
	AC_CACHE_CHECK([for $2 in $1 framework], ac_Framework,
	[ac_check_framework_save_LIBS=$LIBS
	LIBS="-framework $1 $5 $LIBS"
	AC_LINK_IFELSE([AC_LANG_CALL([], [$2])],
	[AS_VAR_SET(ac_Framework, yes)],
	[AS_VAR_SET(ac_Framework, no)])
	LIBS=$ac_check_framework_save_LIBS])
	AS_IF([test AS_VAR_GET(ac_Framework) = yes],
	[m4_default([$3], [AC_DEFINE_UNQUOTED(AS_TR_CPP(HAVE_FRAMEWORK_$1))
	LIBS="-framework $1 $LIBS"
	])],
	[$4])dnl
	AS_VAR_POPDEF([ac_Framework])dnl
	])# AC_CHECK_FRAMEWORK

	# AH_CHECK_FRAMEWORK(FRAMEWORK)
	# ---------------------
	m4_define([AH_CHECK_FRAMEWORK],
	[AH_TEMPLATE(AS_TR_CPP(HAVE_FRAMEWORK_$1),
	[Define to 1 if you have the `]$1[' framework (-framework ]$1[).])])