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framework.m4
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# 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[).])])