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	# ===========================================================================
	# http://autoconf-archive.cryp.to/ac_python_devel.html
	# ===========================================================================
	#
	# SYNOPSIS
	#
	# AC_PYTHON_DEVEL([version])
	#
	# DESCRIPTION
	#
	# Note: Defines as a precious variable "PYTHON_VERSION". Don't override it
	# in your configure.ac.
	#
	# This macro checks for Python and tries to get the include path to
	# 'Python.h'. It provides the $(PYTHON_CPPFLAGS) and $(PYTHON_LDFLAGS)
	# output variables. It also exports $(PYTHON_EXTRA_LIBS) and
	# $(PYTHON_EXTRA_LDFLAGS) for embedding Python in your code.
	#
	# You can search for some particular version of Python by passing a
	# parameter to this macro, for example ">= '2.3.1'", or "== '2.4'". Please
	# note that you have to pass also an operator along with the version to
	# match, and pay special attention to the single quotes surrounding the
	# version number. Don't use "PYTHON_VERSION" for this: that environment
	# variable is declared as precious and thus reserved for the end-user.
	#
	# This macro should work for all versions of Python >= 2.1.0. As an end
	# user, you can disable the check for the python version by setting the
	# PYTHON_NOVERSIONCHECK environment variable to something else than the
	# empty string.
	#
	# If you need to use this macro for an older Python version, please
	# contact the authors. We're always open for feedback.
	#
	# LICENSE
	#
	# Copyright (c) 2009 Sebastian Huber <sebastian-huber@web.de>
	# Copyright (c) 2009 Alan W. Irwin <irwin@beluga.phys.uvic.ca>
	# Copyright (c) 2009 Rafael Laboissiere <rafael@laboissiere.net>
	# Copyright (c) 2009 Andrew Collier <colliera@ukzn.ac.za>
	# Copyright (c) 2009 Matteo Settenvini <matteo@member.fsf.org>
	# Copyright (c) 2009 Horst Knorr <hk_classes@knoda.org>
	#
	# This program is free software: you can redistribute it and/or modify it
	# under the terms of the GNU General Public License as published by the
	# Free Software Foundation, either version 3 of the License, or (at your
	# option) any later version.
	#
	# This program is distributed in the hope that it will be useful, but
	# WITHOUT ANY WARRANTY; without even the implied warranty of
	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
	# Public License for more details.
	#
	# You should have received a copy of the GNU General Public License along
	# with this program. If not, see <http://www.gnu.org/licenses/>.
	#
	# As a special exception, the respective Autoconf Macro's copyright owner
	# gives unlimited permission to copy, distribute and modify the configure
	# scripts that are the output of Autoconf when processing the Macro. You
	# need not follow the terms of the GNU General Public License when using
	# or distributing such scripts, even though portions of the text of the
	# Macro appear in them. The GNU General Public License (GPL) does govern
	# all other use of the material that constitutes the Autoconf Macro.
	#
	# This special exception to the GPL applies to versions of the Autoconf
	# Macro released by the Autoconf Archive. When you make and distribute a
	# modified version of the Autoconf Macro, you may extend this special
	# exception to the GPL to apply to your modified version as well.

	AC_DEFUN([AC_PYTHON_DEVEL],[
	#
	# Allow the use of a (user set) custom python version
	#
	AC_ARG_VAR([PYTHON_VERSION],[The installed Python
	version to use, for example '2.3'. This string
	will be appended to the Python interpreter
	canonical name.])

	AC_PATH_PROG([PYTHON],[python[$PYTHON_VERSION]])
	if test -z "$PYTHON"; then
	AC_MSG_ERROR([Cannot find python$PYTHON_VERSION in your system path])
	PYTHON_VERSION=""
	fi

	#
	# Check for a version of Python >= 2.1.0
	#
	AC_MSG_CHECKING([for a version of Python >= '2.1.0'])
	ac_supports_python_ver=`$PYTHON -c "import sys; \
	ver = sys.version.split ()[[0]]; \
	print (ver >= '2.1.0')"`
	if test "$ac_supports_python_ver" != "True"; then
	if test -z "$PYTHON_NOVERSIONCHECK"; then
	AC_MSG_RESULT([no])
	AC_MSG_FAILURE([
	This version of the AC@&t@_PYTHON_DEVEL macro
	doesn't work properly with versions of Python before
	2.1.0. You may need to re-run configure, setting the
	variables PYTHON_CPPFLAGS, PYTHON_LDFLAGS, PYTHON_SITE_PKG,
	PYTHON_EXTRA_LIBS and PYTHON_EXTRA_LDFLAGS by hand.
	Moreover, to disable this check, set PYTHON_NOVERSIONCHECK
	to something else than an empty string.
	])
	else
	AC_MSG_RESULT([skip at user request])
	fi
	else
	AC_MSG_RESULT([yes])
	fi

	#
	# if the macro parameter ``version'' is set, honour it
	#
	if test -n "$1"; then
	AC_MSG_CHECKING([for a version of Python $1])
	ac_supports_python_ver=`$PYTHON -c "import sys; \
	ver = sys.version.split ()[[0]]; \
	print (ver $1)"`
	if test "$ac_supports_python_ver" = "True"; then
	AC_MSG_RESULT([yes])
	else
	AC_MSG_RESULT([no])
	AC_MSG_ERROR([this package requires Python $1.
	If you have it installed, but it isn't the default Python
	interpreter in your system path, please pass the PYTHON_VERSION
	variable to configure. See ``configure --help'' for reference.
	])
	PYTHON_VERSION=""
	fi
	fi

	#
	# Check if you have distutils, else fail
	#
	AC_MSG_CHECKING([for the distutils Python package])
	ac_distutils_result=`$PYTHON -c "import distutils" 2>&1`
	if test -z "$ac_distutils_result"; then
	AC_MSG_RESULT([yes])
	else
	AC_MSG_RESULT([no])
	AC_MSG_ERROR([cannot import Python module "distutils".
	Please check your Python installation. The error was:
	$ac_distutils_result])
	PYTHON_VERSION=""
	fi

	#
	# Check for Python include path
	#
	AC_MSG_CHECKING([for Python include path])
	if test -z "$PYTHON_CPPFLAGS"; then
	python_path=`$PYTHON -c "import distutils.sysconfig; \
	print (distutils.sysconfig.get_python_inc ());"`
	if test -n "${python_path}"; then
	python_path="-I$python_path"
	fi
	PYTHON_CPPFLAGS=$python_path
	fi
	AC_MSG_RESULT([$PYTHON_CPPFLAGS])
	AC_SUBST([PYTHON_CPPFLAGS])

	#
	# Check for Python library path
	#
	AC_MSG_CHECKING([for Python library path])
	if test -z "$PYTHON_LDFLAGS"; then
	# (makes two attempts to ensure we've got a version number
	# from the interpreter)
	ac_python_version=`cat<<EOD \| $PYTHON -

	# join all versioning strings, on some systems
	# major/minor numbers could be in different list elements
	from distutils.sysconfig import *
	ret = ''
	for e in get_config_vars ('VERSION'):
	if (e != None):
	ret += e
	print (ret)
	EOD`

	if test -z "$ac_python_version"; then
	if test -n "$PYTHON_VERSION"; then
	ac_python_version=$PYTHON_VERSION
	else
	ac_python_version=`$PYTHON -c "import sys; \
	print (sys.version[[:3]])"`
	fi
	fi

	# Make the versioning information available to the compiler
	AC_DEFINE_UNQUOTED([HAVE_PYTHON], ["$ac_python_version"],
	[If available, contains the Python version number currently in use.])

	# First, the library directory:
	ac_python_libdir=`cat<<EOD \| $PYTHON -

	# There should be only one
	import distutils.sysconfig
	for e in distutils.sysconfig.get_config_vars ('LIBDIR'):
	if e != None:
	print (e)
	break
	EOD`

	# Before checking for libpythonX.Y, we need to know
	# the extension the OS we're on uses for libraries
	# (we take the first one, if there's more than one fix me!):
	ac_python_soext=`$PYTHON -c \
	"import distutils.sysconfig; \
	print (distutils.sysconfig.get_config_vars('SO')[[0]])"`

	# Now, for the library:
	ac_python_soname=`$PYTHON -c \
	"import distutils.sysconfig; \
	print (distutils.sysconfig.get_config_vars('LDLIBRARY')[[0]])"`

	# Strip away extension from the end to canonicalize its name:
	ac_python_library=`echo "$ac_python_soname" \| sed "s/${ac_python_soext}$//"`

	# This small piece shamelessly adapted from PostgreSQL python macro;
	# credits goes to momjian, I think. I'd like to put the right name
	# in the credits, if someone can point me in the right direction... ?
	#
	if test -n "$ac_python_libdir" -a -n "$ac_python_library" \
	-a x"$ac_python_library" != x"$ac_python_soname"
	then
	# use the official shared library
	ac_python_library=`echo "$ac_python_library" \| sed "s/^lib//"`
	PYTHON_LDFLAGS="-L$ac_python_libdir -l$ac_python_library"
	else
	# old way: use libpython from python_configdir
	ac_python_libdir=`$PYTHON -c \
	"from distutils.sysconfig import get_python_lib as f; \
	import os; \
	print (os.path.join(f(plat_specific=1, standard_lib=1), 'config'));"`
	PYTHON_LDFLAGS="-L$ac_python_libdir -lpython$ac_python_version"
	fi

	if test -z "PYTHON_LDFLAGS"; then
	AC_MSG_ERROR([
	Cannot determine location of your Python DSO. Please check it was installed with
	dynamic libraries enabled, or try setting PYTHON_LDFLAGS by hand.
	])
	fi
	fi
	AC_MSG_RESULT([$PYTHON_LDFLAGS])
	AC_SUBST([PYTHON_LDFLAGS])

	#
	# Check for site packages
	#
	AC_MSG_CHECKING([for Python site-packages path])
	if test -z "$PYTHON_SITE_PKG"; then
	PYTHON_SITE_PKG=`$PYTHON -c "import distutils.sysconfig; \
	print (distutils.sysconfig.get_python_lib(0,0));"`
	fi
	AC_MSG_RESULT([$PYTHON_SITE_PKG])
	AC_SUBST([PYTHON_SITE_PKG])

	#
	# libraries which must be linked in when embedding
	#
	AC_MSG_CHECKING(python extra libraries)
	if test -z "$PYTHON_EXTRA_LIBS"; then
	PYTHON_EXTRA_LIBS=`$PYTHON -c "import distutils.sysconfig; \
	conf = distutils.sysconfig.get_config_var; \
	print (conf('LOCALMODLIBS') + ' ' + conf('LIBS'))"`
	fi
	AC_MSG_RESULT([$PYTHON_EXTRA_LIBS])
	AC_SUBST(PYTHON_EXTRA_LIBS)

	#
	# linking flags needed when embedding
	#
	AC_MSG_CHECKING(python extra linking flags)
	if test -z "$PYTHON_EXTRA_LDFLAGS"; then
	PYTHON_EXTRA_LDFLAGS=`$PYTHON -c "import distutils.sysconfig; \
	conf = distutils.sysconfig.get_config_var; \
	print (conf('LINKFORSHARED'))"`
	fi
	AC_MSG_RESULT([$PYTHON_EXTRA_LDFLAGS])
	AC_SUBST(PYTHON_EXTRA_LDFLAGS)

	#
	# final check to see if everything compiles alright
	#
	AC_MSG_CHECKING([consistency of all components of python development environment])
	# save current global flags
	ac_save_LIBS="$LIBS"
	ac_save_CPPFLAGS="$CPPFLAGS"
	LIBS="$LIBS $PYTHON_LDFLAGS $PYTHON_EXTRA_LDFLAGS $PYTHON_EXTRA_LIBS"
	CPPFLAGS="$CPPFLAGS $PYTHON_CPPFLAGS"
	AC_LANG_PUSH([C])
	AC_LINK_IFELSE([
	AC_LANG_PROGRAM([[#include <Python.h>]],
	[[Py_Initialize();]])
	],[pythonexists=yes],[pythonexists=no])
	AC_LANG_POP([C])
	# turn back to default flags
	CPPFLAGS="$ac_save_CPPFLAGS"
	LIBS="$ac_save_LIBS"

	AC_MSG_RESULT([$pythonexists])

	if test ! "x$pythonexists" = "xyes"; then
	AC_MSG_FAILURE([
	Could not link test program to Python. Maybe the main Python library has been
	installed in some non-standard library path. If so, pass it to configure,
	via the LDFLAGS environment variable.
	Example: ./configure LDFLAGS="-L/usr/non-standard-path/python/lib"
	============================================================================
	ERROR!
	You probably have to install the development version of the Python package
	for your distribution. The exact name of this package varies among them.
	============================================================================
	])
	PYTHON_VERSION=""
	fi

	#
	# all done!
	#
	])
	# ===========================================================================
	# http://autoconf-archive.cryp.to/ac_python_module.html
	# ===========================================================================
	#
	# SYNOPSIS
	#
	# AC_PYTHON_MODULE(modname[, fatal])
	#
	# DESCRIPTION
	#
	# Checks for Python module.
	#
	# If fatal is non-empty then absence of a module will trigger an error.
	#
	# LICENSE
	#
	# Copyright (c) 2008 Andrew Collier <colliera@ukzn.ac.za>
	#
	# Copying and distribution of this file, with or without modification, are
	# permitted in any medium without royalty provided the copyright notice
	# and this notice are preserved.

	AC_DEFUN([AC_PYTHON_MODULE],[
	if test -z $PYTHON;
	then
	PYTHON="python"
	fi
	PYTHON_NAME=`basename $PYTHON`
	AC_MSG_CHECKING($PYTHON_NAME module: $1)
	$PYTHON -c "import $1" 2>/dev/null
	if test $? -eq 0;
	then
	AC_MSG_RESULT(yes)
	eval AS_TR_CPP(HAVE_PYMOD_$1)=yes
	else
	AC_MSG_RESULT(no)
	eval AS_TR_CPP(HAVE_PYMOD_$1)=no
	#
	if test -n "$2"
	then
	AC_MSG_ERROR(failed to find required module $1)
	exit 1
	fi
	fi
	])
	# ===========================================================================
	# http://autoconf-archive.cryp.to/az_python.html
	# ===========================================================================
	#
	# SYNOPSIS
	#
	# AZ_PYTHON_DEFAULT
	# AZ_PYTHON_ENABLE
	# AZ_PYTHON_WITH
	# AZ_PYTHON_PATH
	# AZ_PYTHON_VERSION_ENSURE( [2.2] )
	# AZ_PYTHON_CSPEC
	# AZ_PYTHON_LSPEC
	#
	# DESCRIPTION
	#
	# This file provides autoconf support for those applications that want to
	# embed python. It supports all pythons >= 2.2 which is the first official
	# release containing distutils. Version 2.2 of python was released
	# December 21, 2001. Since it actually executes the python, cross platform
	# configuration will probably not work. Also, most of the platforms
	# supported are consistent until you look into MacOSX. The python included
	# with it is installed as a framework which is a very different
	# environment to set up the normal tools such as gcc and libtool to deal
	# with. Therefore, once we establish which python that we are going to
	# use, we use its distutils to actually compile and link our modules or
	# applications.
	#
	# At this time, it does NOT support linking with Python statically. It
	# does support dynamic linking.
	#
	# This set of macros help define $PYTHON, $PYTHON_USE, $PYTHON_CSPEC and
	# $PYTHON_LSPEC. $PYTHON defines the full executable path for the Python
	# being linked to and is used within these macros to determine if that has
	# been specified or found. These macros do execute this python version so
	# it must be present on the system at configure time.
	#
	# $PYTHON_USE is an automake variable that defines whether Python support
	# should be included or not in your application. $PYTHON_CSPEC is a
	# variable that supplies additional CFLAGS for the compilation of the
	# application/shared library. $PYTHON_LSPEC is a variable that supplies
	# additional LDFLAGS for linking the application/shared library.
	#
	# The following is an example of how to set up for python usage within
	# your application in your configure.in:
	#
	# AZ_PYTHON_DEFAULT( )
	# AZ_PYTHON_ENABLE( ) # Optional
	# AZ_PYTHON_WITH( ) # Optional
	# AZ_PYTHON_PATH( ) # or AZ_PYTHON_INSIST( )
	# # if $PYTHON is not defined, then the following do nothing.
	# AZ_PYTHON_VERSION_ENSURE( [2.2] )
	# AZ_PYTHON_CSPEC
	# AZ_PYTHON_LSPEC
	#
	# The AZ_PYTHON_DEFAULT sets the $PYTHON_USE to false. Thereby, excluding
	# it if it was optional.
	#
	# The AZ_PYTHON_ENABLE looks for the optional configure parameters of
	# --enable-python/--disable-python and establishes the $PYTHON and
	# $PYTHON_USE variables accordingly.
	#
	# The AZ_PYTHON_WITH looks for the optional configure parameters of
	# --with-python/--without-python and establishes the $PYTHON and
	# $PYTHON_USE variables accordingly.
	#
	# The AZ_PYTHON_PATH looks for python assuming that none has been
	# previously found or defined and issues an error if it does not find it.
	# If it does find it, it establishes the $PYTHON and $PYTHON_USE variables
	# accordingly. AZ_PYTHON_INSIST could be used here instead if you want to
	# insist that Python support be included using the --enable-python or
	# --with-python checks previously done.
	#
	# The AZ_PYTHON_VERSION_ENSURE issues an error if the Python previously
	# found is not of version 2.2 or greater.
	#
	# Once that these macros have be run, we can use PYTHON_USE within the
	# makefile.am file to conditionally add the Python support such as:
	#
	# Makefile.am example showing optional inclusion of directories:
	#
	# if PYTHON_USE
	# plugins = plugins
	# src = src
	# else
	# plugins =
	# src =
	# endif
	#
	# SUBDIRS = . $(plugins) $(src)
	#
	# Makefile.am example showing optional shared library build:
	#
	# if PYTHON_USE
	# lib_LTLIBRARIES = libElemList.la
	# libElemList_la_SOURCES = libElemList.c
	# libElemList_la_CFLAGS = @PYTHON_CSPEC@
	# libElemList_la_LDFLAGS = @PYTHON_LSPEC@
	# endif
	#
	# Makefile.am example showing optional program build:
	#
	# if PYTHON_USE
	# bin_PROGRAMS = runFunc
	# runFunc_SOURCES = runFunc.c
	# runFunc_CFLAGS = @PYTHON_CSPEC@
	# runFunc_LDFLAGS = @PYTHON_LSPEC@
	# endif
	#
	# The above compiles the modules only if PYTHON_USE was specified as true.
	# Also, the else portion of the if was optional.
	#
	# LICENSE
	#
	# Copyright (c) 2008 Robert White <kranki@mac.com>
	# Copyright (c) 2008 Dustin J. Mitchell <dustin@cs.uchicago.edu>
	#
	# Copying and distribution of this file, with or without modification, are
	# permitted in any medium without royalty provided the copyright notice
	# and this notice are preserved.

	# AZ_PYTHON_DEFAULT( )
	# -----------------
	# Sets the default to not include Python support.

	AC_DEFUN([AZ_PYTHON_DEFAULT],
	[
	az_python_use=false
	AM_CONDITIONAL(PYTHON_USE, test x"$az_python_use" = x"true")
	])



	# AZ_PYTHON_ENABLE( [path] )
	# -----------------------------------------------------------------
	# Handles the various --enable-python commands.
	# Input:
	# $1 is the optional search path for the python executable if needed
	# Ouput:
	# PYTHON_USE (AM_CONDITIONAL) is true if python executable found
	# and --enable-python was requested; otherwise false.
	# $PYTHON contains the full executable path to python if PYTHON_ENABLE_USE
	# is true.
	#
	# Example:
	# AZ_PYTHON_ENABLE( )
	# or
	# AZ_PYTHON_ENABLE( "/usr/bin" )

	AC_DEFUN([AZ_PYTHON_ENABLE],
	[
	AC_ARG_VAR([PYTHON],[Python Executable Path])

	# unless PYTHON was supplied to us (as a precious variable),
	# see if --enable-python[=PythonExecutablePath], --enable-python,
	# --disable-python or --enable-python=no was given.
	if test -z "$PYTHON"
	then
	AC_MSG_CHECKING(for --enable-python)
	AC_ARG_ENABLE(
	python,
	AC_HELP_STRING([--enable-python@<:@=PYTHON@:>@],
	[absolute path name of Python executable]
	),
	[
	if test "$enableval" = "yes"
	then
	# "yes" was specified, but we don't have a path
	# for the executable.
	# So, let's searth the PATH Environment Variable.
	AC_MSG_RESULT(yes)
	AC_PATH_PROG(
	[PYTHON],
	python,
	[],
	$1
	)
	if test -z "$PYTHON"
	then
	AC_MSG_ERROR(no path to python found)
	fi
	az_python_use=true
	AM_CONDITIONAL(PYTHON_USE, test x"$az_python_use" = x"true")
	AZ_PYTHON_PREFIX( )
	elif test "$enableval" = "no"
	then
	AC_MSG_RESULT(no)
	az_python_use=false
	AM_CONDITIONAL(PYTHON_USE, test x"$az_python_use" = x"true")
	else
	# $enableval must be the executable path then.
	AC_SUBST([PYTHON], ["${enableval}"])
	AC_MSG_RESULT($withval)
	az_python_use=true
	AM_CONDITIONAL(PYTHON_USE, test x"$az_python_use" = x"true")
	AZ_PYTHON_PREFIX( )
	fi
	],
	[
	# --with-python was not specified.
	AC_MSG_RESULT(no)
	az_python_use=false
	AM_CONDITIONAL(PYTHON_USE, test x"$az_python_use" = x"true")
	]
	)
	fi

	])



	# AZ_PYTHON_CSPEC( )
	# -----------------
	# Set up the c compiler options to compile Python
	# embedded programs/libraries in $PYTHON_CSPEC if
	# $PYTHON has been defined.

	AC_DEFUN([AZ_PYTHON_CSPEC],
	[
	AC_ARG_VAR( [PYTHON], [Python Executable Path] )
	if test -n "$PYTHON"
	then
	az_python_prefix=`${PYTHON} -c "import sys; print sys.prefix"`
	if test -z "$az_python_prefix"
	then
	AC_MSG_ERROR([Python Prefix is not known])
	fi
	az_python_execprefix=`${PYTHON} -c "import sys; print sys.exec_prefix"`
	az_python_version=`$PYTHON -c "import sys; print sys.version[[:3]]"`
	az_python_includespec="-I${az_python_prefix}/include/python${az_python_version}"
	if test x"$python_prefix" != x"$python_execprefix"; then
	az_python_execspec="-I${az_python_execprefix}/include/python${az_python_version}"
	az_python_includespec="${az_python_includespec} $az_python_execspec"
	fi
	az_python_ccshared=`${PYTHON} -c "import distutils.sysconfig; print distutils.sysconfig.get_config_var('CFLAGSFORSHARED')"`
	az_python_cspec="${az_python_ccshared} ${az_python_includespec}"
	AC_SUBST([PYTHON_CSPEC], [${az_python_cspec}])
	AC_MSG_NOTICE([PYTHON_CSPEC=${az_python_cspec}])
	fi
	])



	# AZ_PYTHON_INSIST( )
	# -----------------
	# Look for Python and set the output variable 'PYTHON'
	# to 'python' if found, empty otherwise.

	AC_DEFUN([AZ_PYTHON_PATH],
	[
	AC_ARG_VAR( [PYTHON], [Python Executable Path] )
	if test -z "$PYTHON"
	then
	AC_MSG_ERROR([Python Executable not found])
	fi
	])



	# AZ_PYTHON_LSPEC( )
	# -----------------
	# Set up the linker options to link Python embedded
	# programs/libraries in $PYTHON_LSPEC if $PYTHON
	# has been defined.

	AC_DEFUN([AZ_PYTHON_LSPEC],
	[
	AC_ARG_VAR( [PYTHON], [Python Executable Path] )
	if test -n "$PYTHON"
	then
	AZ_PYTHON_RUN([
	import sys
	import distutils.sysconfig
	strUseFrameWork = "--enable-framework"
	dictConfig = distutils.sysconfig.get_config_vars( )
	strConfigArgs = dictConfig.get("CONFIG_ARGS")
	strLinkSpec = dictConfig.get('LDFLAGS')
	if -1 == strConfigArgs.find(strUseFrameWork):
	strLibPL = dictConfig.get("LIBPL")
	if strLibPL and (strLibPL != ""):
	strLinkSpec += " -L%s" % (strLibPL)
	strSys = dictConfig.get("SYSLIBS")
	if strSys and (strSys != ""):
	strLinkSpec += " %s" % (strSys)
	strSHL = dictConfig.get("SHLIBS")
	if strSHL and (strSHL != ""):
	strLinkSpec += " %s" % (strSHL)
	# Construct the Python Library Name.
	strTmplte = " -lpython%d.%d"
	if (sys.platform == "win32") or (sys.platform == "os2emx"):
	strTmplte = " -lpython%d%d"
	strWrk = strTmplte % ( (sys.hexversion >> 24),
	((sys.hexversion >> 16) & 0xff))
	strLinkSpec += strWrk
	else:
	# This is not ideal since it changes the search path
	# for Frameworks which could have side-effects on
	# other included Frameworks. However, it is necessary
	# where someone has installed more than one frameworked
	# Python. Frameworks are really only used in MacOSX.
	strLibFW = dictConfig.get("PYTHONFRAMEWORKPREFIX")
	if strLibFW and (strLibFW != ""):
	strLinkSpec += " -F%s" % (strLibFW)
	strLinkSpec += " %s" % (dictConfig.get('LINKFORSHARED'))
	print strLinkSpec
	])
	AC_SUBST([PYTHON_LSPEC], [${az_python_output}])
	AC_MSG_NOTICE([PYTHON_LSPEC=${az_python_output}])
	fi
	])



	# AZ_PYTHON_PATH( )
	# -----------------
	# Look for Python and set the output variable 'PYTHON'
	# to 'python' if found, empty otherwise.

	AC_DEFUN([AZ_PYTHON_PATH],
	[
	AC_ARG_VAR( [PYTHON], [Python Executable Path] )
	AC_PATH_PROG( PYTHON, python, [], $1 )
	if test -z "$PYTHON"
	then
	AC_MSG_ERROR([Python Executable not found])
	else
	az_python_use=true
	fi
	AM_CONDITIONAL(PYTHON_USE, test "$az_python_use" = "true")
	])



	# AZ_PYTHON_PREFIX( )
	# -------------------
	# Use the values of $prefix and $exec_prefix for the corresponding
	# values of PYTHON_PREFIX and PYTHON_EXEC_PREFIX.

	AC_DEFUN([AZ_PYTHON_PREFIX],
	[
	if test -z "$PYTHON"
	then
	AC_MSG_ERROR([Python Executable Path is not known])
	fi
	ax_python_prefix=`${PYTHON} -c "import sys; print sys.prefix"`
	ax_python_execprefix=`${PYTHON} -c "import sys; print sys.exec_prefix"`
	AC_SUBST([PYTHON_PREFIX], ["${ax_python_prefix}"])
	AC_SUBST([PYTHON_EXECPREFIX], ["${ax_python_execprefix}"])
	])



	# AZ_PYTHON_RUN( PYTHON_PROGRAM )
	# -----------------
	# Run a Python Test Program saving its output
	# in az_python_output and its condition code
	# in az_python_cc.

	AC_DEFUN([AZ_PYTHON_RUN],
	[
	AC_ARG_VAR( [PYTHON], [Python Executable Path] )
	if test -z "$PYTHON"
	then
	AC_MSG_ERROR([Python Executable not found])
	else
	cat >conftest.py <<_ACEOF
	$1
	_ACEOF
	az_python_output=`$PYTHON conftest.py`
	az_python_cc=$?
	rm conftest.py
	if test -f "conftest.pyc"
	then
	rm conftest.pyc
	fi
	fi
	])



	# AZ_PYTHON_VERSION_CHECK( VERSION, [ACTION-IF-TRUE], [ACTION-IF-FALSE] )
	# -----------------------------------------------------------------------------
	# Run ACTION-IF-TRUE if the Python interpreter has version >= VERSION.
	# Run ACTION-IF-FALSE otherwise.
	# This test uses sys.hexversion instead of the string equivalant (first
	# word of sys.version), in order to cope with versions such as 2.2c1.
	# hexversion has been introduced in Python 1.5.2; it's probably not
	# worth to support older versions (1.5.1 was released on October 31, 1998).

	AC_DEFUN([AZ_PYTHON_VERSION_CHECK],
	[
	AC_ARG_VAR( [PYTHON], [Python Executable Path] )
	if test -n "$PYTHON"
	then
	AC_MSG_CHECKING([whether $PYTHON version >= $1])
	AZ_PYTHON_RUN([
	import sys, string
	# split strings by '.' and convert to numeric. Append some zeros
	# because we need at least 4 digits for the hex conversion.
	minver = map(int, string.split('$1', '.')) + [[0, 0, 0]]
	minverhex = 0
	for i in xrange(0, 4): minverhex = (minverhex << 8) + minver[[i]]
	if sys.hexversion >= minverhex:
	sys.exit( 0 )
	else:
	sys.exit( 1 )
	])
	if test $az_python_cc -eq 0
	then
	$2
	m4_ifvaln(
	[$3],
	[else $3]
	)
	fi
	fi
	])



	# AZ_PYTHON_VERSION_ENSURE( VERSION )
	# -----------------
	# Insure that the Python Interpreter Version
	# is greater than or equal to the VERSION
	# parameter.

	AC_DEFUN([AZ_PYTHON_VERSION_ENSURE],
	[
	AZ_PYTHON_VERSION_CHECK(
	[$1],
	[AC_MSG_RESULT(yes)],
	[AC_MSG_ERROR(too old)]
	)
	])



	# AZ_PYTHON_WITH( [path] )
	# -----------------------------------------------------------------
	# Handles the various --with-python commands.
	# Input:
	# $1 is the optional search path for the python executable if needed
	# Ouput:
	# PYTHON_USE (AM_CONDITIONAL) is true if python executable found
	# and --with-python was requested; otherwise false.
	# $PYTHON contains the full executable path to python if PYTHON_USE
	# is true.
	#
	# Example:
	# AZ_PYTHON_WITH( )
	# or
	# AZ_PYTHON_WITH("/usr/bin")

	AC_DEFUN([AZ_PYTHON_WITH],
	[
	AC_ARG_VAR([PYTHON],[Python Executable Path])

	# unless PYTHON was supplied to us (as a precious variable),
	# see if --with-python[=PythonExecutablePath], --with-python,
	# --without-python or --with-python=no was given.
	if test -z "$PYTHON"
	then
	AC_MSG_CHECKING(for --with-python)
	AC_ARG_WITH(
	python,
	AC_HELP_STRING([--with-python@<:@=PYTHON@:>@],
	[absolute path name of Python executable]
	),
	[
	if test "$withval" = "yes"
	then
	# "yes" was specified, but we don't have a path
	# for the executable.
	# So, let's searth the PATH Environment Variable.
	AC_MSG_RESULT(yes)
	AC_PATH_PROG(
	[PYTHON],
	python,
	[],
	$1
	)
	if test -z "$PYTHON"
	then
	AC_MSG_ERROR(no path to python found)
	fi
	az_python_use=true
	AM_CONDITIONAL(PYTHON_USE, test x"$az_python_use" = x"true")
	AZ_PYTHON_PREFIX( )
	elif test "$withval" = "no"
	then
	AC_MSG_RESULT(no)
	az_python_use=false
	AM_CONDITIONAL(PYTHON_USE, test x"$az_python_use" = x"true")
	else
	# $withval must be the executable path then.
	AC_SUBST([PYTHON], ["${withval}"])
	AC_MSG_RESULT($withval)
	az_python_use=true
	AM_CONDITIONAL(PYTHON_USE, test x"$az_python_use" = x"true")
	AZ_PYTHON_PREFIX( )
	fi
	],
	[
	# --with-python was not specified.
	AC_MSG_RESULT(no)
	az_python_use=false
	AM_CONDITIONAL(PYTHON_USE, test x"$az_python_use" = x"true")
	]
	)
	fi

	])

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