# generated automatically by aclocal 1.16.5 -*- Autoconf -*-

# Copyright (C) 1996-2021 Free Software Foundation, Inc.

# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.

# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
# PARTICULAR PURPOSE.

m4_ifndef([AC_CONFIG_MACRO_DIRS], [m4_defun([_AM_CONFIG_MACRO_DIRS], [])m4_defun([AC_CONFIG_MACRO_DIRS], [_AM_CONFIG_MACRO_DIRS($@)])])
# pkg.m4 - Macros to locate and utilise pkg-config.   -*- Autoconf -*-
# serial 11 (pkg-config-0.29.1)

dnl Copyright © 2004 Scott James Remnant <scott@netsplit.com>.
dnl Copyright © 2012-2015 Dan Nicholson <dbn.lists@gmail.com>
dnl
dnl This program is free software; you can redistribute it and/or modify
dnl it under the terms of the GNU General Public License as published by
dnl the Free Software Foundation; either version 2 of the License, or
dnl (at your option) any later version.
dnl
dnl This program is distributed in the hope that it will be useful, but
dnl WITHOUT ANY WARRANTY; without even the implied warranty of
dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
dnl General Public License for more details.
dnl
dnl You should have received a copy of the GNU General Public License
dnl along with this program; if not, write to the Free Software
dnl Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
dnl 02111-1307, USA.
dnl
dnl As a special exception to the GNU General Public License, if you
dnl distribute this file as part of a program that contains a
dnl configuration script generated by Autoconf, you may include it under
dnl the same distribution terms that you use for the rest of that
dnl program.

dnl PKG_PREREQ(MIN-VERSION)
dnl -----------------------
dnl Since: 0.29
dnl
dnl Verify that the version of the pkg-config macros are at least
dnl MIN-VERSION. Unlike PKG_PROG_PKG_CONFIG, which checks the user's
dnl installed version of pkg-config, this checks the developer's version
dnl of pkg.m4 when generating configure.
dnl
dnl To ensure that this macro is defined, also add:
dnl m4_ifndef([PKG_PREREQ],
dnl     [m4_fatal([must install pkg-config 0.29 or later before running autoconf/autogen])])
dnl
dnl See the "Since" comment for each macro you use to see what version
dnl of the macros you require.
m4_defun([PKG_PREREQ],
[m4_define([PKG_MACROS_VERSION], [0.29.1])
m4_if(m4_version_compare(PKG_MACROS_VERSION, [$1]), -1,
    [m4_fatal([pkg.m4 version $1 or higher is required but ]PKG_MACROS_VERSION[ found])])
])dnl PKG_PREREQ

dnl PKG_PROG_PKG_CONFIG([MIN-VERSION])
dnl ----------------------------------
dnl Since: 0.16
dnl
dnl Search for the pkg-config tool and set the PKG_CONFIG variable to
dnl first found in the path. Checks that the version of pkg-config found
dnl is at least MIN-VERSION. If MIN-VERSION is not specified, 0.9.0 is
dnl used since that's the first version where most current features of
dnl pkg-config existed.
AC_DEFUN([PKG_PROG_PKG_CONFIG],
[m4_pattern_forbid([^_?PKG_[A-Z_]+$])
m4_pattern_allow([^PKG_CONFIG(_(PATH|LIBDIR|SYSROOT_DIR|ALLOW_SYSTEM_(CFLAGS|LIBS)))?$])
m4_pattern_allow([^PKG_CONFIG_(DISABLE_UNINSTALLED|TOP_BUILD_DIR|DEBUG_SPEW)$])
AC_ARG_VAR([PKG_CONFIG], [path to pkg-config utility])
AC_ARG_VAR([PKG_CONFIG_PATH], [directories to add to pkg-config's search path])
AC_ARG_VAR([PKG_CONFIG_LIBDIR], [path overriding pkg-config's built-in search path])

if test "x$ac_cv_env_PKG_CONFIG_set" != "xset"; then
	AC_PATH_TOOL([PKG_CONFIG], [pkg-config])
fi
if test -n "$PKG_CONFIG"; then
	_pkg_min_version=m4_default([$1], [0.9.0])
	AC_MSG_CHECKING([pkg-config is at least version $_pkg_min_version])
	if $PKG_CONFIG --atleast-pkgconfig-version $_pkg_min_version; then
		AC_MSG_RESULT([yes])
	else
		AC_MSG_RESULT([no])
		PKG_CONFIG=""
	fi
fi[]dnl
])dnl PKG_PROG_PKG_CONFIG

dnl PKG_CHECK_EXISTS(MODULES, [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
dnl -------------------------------------------------------------------
dnl Since: 0.18
dnl
dnl Check to see whether a particular set of modules exists. Similar to
dnl PKG_CHECK_MODULES(), but does not set variables or print errors.
dnl
dnl Please remember that m4 expands AC_REQUIRE([PKG_PROG_PKG_CONFIG])
dnl only at the first occurence in configure.ac, so if the first place
dnl it's called might be skipped (such as if it is within an "if", you
dnl have to call PKG_CHECK_EXISTS manually
AC_DEFUN([PKG_CHECK_EXISTS],
[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
if test -n "$PKG_CONFIG" && \
    AC_RUN_LOG([$PKG_CONFIG --exists --print-errors "$1"]); then
  m4_default([$2], [:])
m4_ifvaln([$3], [else
  $3])dnl
fi])

dnl _PKG_CONFIG([VARIABLE], [COMMAND], [MODULES])
dnl ---------------------------------------------
dnl Internal wrapper calling pkg-config via PKG_CONFIG and setting
dnl pkg_failed based on the result.
m4_define([_PKG_CONFIG],
[if test -n "$$1"; then
    pkg_cv_[]$1="$$1"
 elif test -n "$PKG_CONFIG"; then
    PKG_CHECK_EXISTS([$3],
                     [pkg_cv_[]$1=`$PKG_CONFIG --[]$2 "$3" 2>/dev/null`
		      test "x$?" != "x0" && pkg_failed=yes ],
		     [pkg_failed=yes])
 else
    pkg_failed=untried
fi[]dnl
])dnl _PKG_CONFIG

dnl _PKG_SHORT_ERRORS_SUPPORTED
dnl ---------------------------
dnl Internal check to see if pkg-config supports short errors.
AC_DEFUN([_PKG_SHORT_ERRORS_SUPPORTED],
[AC_REQUIRE([PKG_PROG_PKG_CONFIG])
if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
        _pkg_short_errors_supported=yes
else
        _pkg_short_errors_supported=no
fi[]dnl
])dnl _PKG_SHORT_ERRORS_SUPPORTED


dnl PKG_CHECK_MODULES(VARIABLE-PREFIX, MODULES, [ACTION-IF-FOUND],
dnl   [ACTION-IF-NOT-FOUND])
dnl --------------------------------------------------------------
dnl Since: 0.4.0
dnl
dnl Note that if there is a possibility the first call to
dnl PKG_CHECK_MODULES might not happen, you should be sure to include an
dnl explicit call to PKG_PROG_PKG_CONFIG in your configure.ac
AC_DEFUN([PKG_CHECK_MODULES],
[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
AC_ARG_VAR([$1][_CFLAGS], [C compiler flags for $1, overriding pkg-config])dnl
AC_ARG_VAR([$1][_LIBS], [linker flags for $1, overriding pkg-config])dnl

pkg_failed=no
AC_MSG_CHECKING([for $1])

_PKG_CONFIG([$1][_CFLAGS], [cflags], [$2])
_PKG_CONFIG([$1][_LIBS], [libs], [$2])

m4_define([_PKG_TEXT], [Alternatively, you may set the environment variables $1[]_CFLAGS
and $1[]_LIBS to avoid the need to call pkg-config.
See the pkg-config man page for more details.])

if test $pkg_failed = yes; then
   	AC_MSG_RESULT([no])
        _PKG_SHORT_ERRORS_SUPPORTED
        if test $_pkg_short_errors_supported = yes; then
	        $1[]_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "$2" 2>&1`
        else 
	        $1[]_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "$2" 2>&1`
        fi
	# Put the nasty error message in config.log where it belongs
	echo "$$1[]_PKG_ERRORS" >&AS_MESSAGE_LOG_FD

	m4_default([$4], [AC_MSG_ERROR(
[Package requirements ($2) were not met:

$$1_PKG_ERRORS

Consider adjusting the PKG_CONFIG_PATH environment variable if you
installed software in a non-standard prefix.

_PKG_TEXT])[]dnl
        ])
elif test $pkg_failed = untried; then
     	AC_MSG_RESULT([no])
	m4_default([$4], [AC_MSG_FAILURE(
[The pkg-config script could not be found or is too old.  Make sure it
is in your PATH or set the PKG_CONFIG environment variable to the full
path to pkg-config.

_PKG_TEXT

To get pkg-config, see <http://pkg-config.freedesktop.org/>.])[]dnl
        ])
else
	$1[]_CFLAGS=$pkg_cv_[]$1[]_CFLAGS
	$1[]_LIBS=$pkg_cv_[]$1[]_LIBS
        AC_MSG_RESULT([yes])
	$3
fi[]dnl
])dnl PKG_CHECK_MODULES


dnl PKG_CHECK_MODULES_STATIC(VARIABLE-PREFIX, MODULES, [ACTION-IF-FOUND],
dnl   [ACTION-IF-NOT-FOUND])
dnl ---------------------------------------------------------------------
dnl Since: 0.29
dnl
dnl Checks for existence of MODULES and gathers its build flags with
dnl static libraries enabled. Sets VARIABLE-PREFIX_CFLAGS from --cflags
dnl and VARIABLE-PREFIX_LIBS from --libs.
dnl
dnl Note that if there is a possibility the first call to
dnl PKG_CHECK_MODULES_STATIC might not happen, you should be sure to
dnl include an explicit call to PKG_PROG_PKG_CONFIG in your
dnl configure.ac.
AC_DEFUN([PKG_CHECK_MODULES_STATIC],
[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
_save_PKG_CONFIG=$PKG_CONFIG
PKG_CONFIG="$PKG_CONFIG --static"
PKG_CHECK_MODULES($@)
PKG_CONFIG=$_save_PKG_CONFIG[]dnl
])dnl PKG_CHECK_MODULES_STATIC


dnl PKG_INSTALLDIR([DIRECTORY])
dnl -------------------------
dnl Since: 0.27
dnl
dnl Substitutes the variable pkgconfigdir as the location where a module
dnl should install pkg-config .pc files. By default the directory is
dnl $libdir/pkgconfig, but the default can be changed by passing
dnl DIRECTORY. The user can override through the --with-pkgconfigdir
dnl parameter.
AC_DEFUN([PKG_INSTALLDIR],
[m4_pushdef([pkg_default], [m4_default([$1], ['${libdir}/pkgconfig'])])
m4_pushdef([pkg_description],
    [pkg-config installation directory @<:@]pkg_default[@:>@])
AC_ARG_WITH([pkgconfigdir],
    [AS_HELP_STRING([--with-pkgconfigdir], pkg_description)],,
    [with_pkgconfigdir=]pkg_default)
AC_SUBST([pkgconfigdir], [$with_pkgconfigdir])
m4_popdef([pkg_default])
m4_popdef([pkg_description])
])dnl PKG_INSTALLDIR


dnl PKG_NOARCH_INSTALLDIR([DIRECTORY])
dnl --------------------------------
dnl Since: 0.27
dnl
dnl Substitutes the variable noarch_pkgconfigdir as the location where a
dnl module should install arch-independent pkg-config .pc files. By
dnl default the directory is $datadir/pkgconfig, but the default can be
dnl changed by passing DIRECTORY. The user can override through the
dnl --with-noarch-pkgconfigdir parameter.
AC_DEFUN([PKG_NOARCH_INSTALLDIR],
[m4_pushdef([pkg_default], [m4_default([$1], ['${datadir}/pkgconfig'])])
m4_pushdef([pkg_description],
    [pkg-config arch-independent installation directory @<:@]pkg_default[@:>@])
AC_ARG_WITH([noarch-pkgconfigdir],
    [AS_HELP_STRING([--with-noarch-pkgconfigdir], pkg_description)],,
    [with_noarch_pkgconfigdir=]pkg_default)
AC_SUBST([noarch_pkgconfigdir], [$with_noarch_pkgconfigdir])
m4_popdef([pkg_default])
m4_popdef([pkg_description])
])dnl PKG_NOARCH_INSTALLDIR


dnl PKG_CHECK_VAR(VARIABLE, MODULE, CONFIG-VARIABLE,
dnl [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
dnl -------------------------------------------
dnl Since: 0.28
dnl
dnl Retrieves the value of the pkg-config variable for the given module.
AC_DEFUN([PKG_CHECK_VAR],
[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
AC_ARG_VAR([$1], [value of $3 for $2, overriding pkg-config])dnl

_PKG_CONFIG([$1], [variable="][$3]["], [$2])
AS_VAR_COPY([$1], [pkg_cv_][$1])

AS_VAR_IF([$1], [""], [$5], [$4])dnl
])dnl PKG_CHECK_VAR

dnl PKG_WITH_MODULES(VARIABLE-PREFIX, MODULES,
dnl   [ACTION-IF-FOUND],[ACTION-IF-NOT-FOUND],
dnl   [DESCRIPTION], [DEFAULT])
dnl ------------------------------------------
dnl
dnl Prepare a "--with-" configure option using the lowercase
dnl [VARIABLE-PREFIX] name, merging the behaviour of AC_ARG_WITH and
dnl PKG_CHECK_MODULES in a single macro.
AC_DEFUN([PKG_WITH_MODULES],
[
m4_pushdef([with_arg], m4_tolower([$1]))

m4_pushdef([description],
           [m4_default([$5], [build with ]with_arg[ support])])

m4_pushdef([def_arg], [m4_default([$6], [auto])])
m4_pushdef([def_action_if_found], [AS_TR_SH([with_]with_arg)=yes])
m4_pushdef([def_action_if_not_found], [AS_TR_SH([with_]with_arg)=no])

m4_case(def_arg,
            [yes],[m4_pushdef([with_without], [--without-]with_arg)],
            [m4_pushdef([with_without],[--with-]with_arg)])

AC_ARG_WITH(with_arg,
     AS_HELP_STRING(with_without, description[ @<:@default=]def_arg[@:>@]),,
    [AS_TR_SH([with_]with_arg)=def_arg])

AS_CASE([$AS_TR_SH([with_]with_arg)],
            [yes],[PKG_CHECK_MODULES([$1],[$2],$3,$4)],
            [auto],[PKG_CHECK_MODULES([$1],[$2],
                                        [m4_n([def_action_if_found]) $3],
                                        [m4_n([def_action_if_not_found]) $4])])

m4_popdef([with_arg])
m4_popdef([description])
m4_popdef([def_arg])

])dnl PKG_WITH_MODULES

dnl PKG_HAVE_WITH_MODULES(VARIABLE-PREFIX, MODULES,
dnl   [DESCRIPTION], [DEFAULT])
dnl -----------------------------------------------
dnl
dnl Convenience macro to trigger AM_CONDITIONAL after PKG_WITH_MODULES
dnl check._[VARIABLE-PREFIX] is exported as make variable.
AC_DEFUN([PKG_HAVE_WITH_MODULES],
[
PKG_WITH_MODULES([$1],[$2],,,[$3],[$4])

AM_CONDITIONAL([HAVE_][$1],
               [test "$AS_TR_SH([with_]m4_tolower([$1]))" = "yes"])
])dnl PKG_HAVE_WITH_MODULES

dnl PKG_HAVE_DEFINE_WITH_MODULES(VARIABLE-PREFIX, MODULES,
dnl   [DESCRIPTION], [DEFAULT])
dnl ------------------------------------------------------
dnl
dnl Convenience macro to run AM_CONDITIONAL and AC_DEFINE after
dnl PKG_WITH_MODULES check. HAVE_[VARIABLE-PREFIX] is exported as make
dnl and preprocessor variable.
AC_DEFUN([PKG_HAVE_DEFINE_WITH_MODULES],
[
PKG_HAVE_WITH_MODULES([$1],[$2],[$3],[$4])

AS_IF([test "$AS_TR_SH([with_]m4_tolower([$1]))" = "yes"],
        [AC_DEFINE([HAVE_][$1], 1, [Enable ]m4_tolower([$1])[ support])])
])dnl PKG_HAVE_DEFINE_WITH_MODULES

# Copyright (C) 1999-2021 Free Software Foundation, Inc.
#
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.


# AM_PATH_PYTHON([MINIMUM-VERSION], [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
# ---------------------------------------------------------------------------
# Adds support for distributing Python modules and packages.  To
# install modules, copy them to $(pythondir), using the python_PYTHON
# automake variable.  To install a package with the same name as the
# automake package, install to $(pkgpythondir), or use the
# pkgpython_PYTHON automake variable.
#
# The variables $(pyexecdir) and $(pkgpyexecdir) are provided as
# locations to install python extension modules (shared libraries).
# Another macro is required to find the appropriate flags to compile
# extension modules.
#
# If your package is configured with a different prefix to python,
# users will have to add the install directory to the PYTHONPATH
# environment variable, or create a .pth file (see the python
# documentation for details).
#
# If the MINIMUM-VERSION argument is passed, AM_PATH_PYTHON will
# cause an error if the version of python installed on the system
# doesn't meet the requirement.  MINIMUM-VERSION should consist of
# numbers and dots only.
AC_DEFUN([AM_PATH_PYTHON],
 [
  dnl Find a Python interpreter.  Python versions prior to 2.0 are not
  dnl supported. (2.0 was released on October 16, 2000).
  m4_define_default([_AM_PYTHON_INTERPRETER_LIST],
[python python2 python3 dnl
 python3.11 python3.10 dnl
 python3.9 python3.8 python3.7 python3.6 python3.5 python3.4 python3.3 dnl
 python3.2 python3.1 python3.0 dnl
 python2.7 python2.6 python2.5 python2.4 python2.3 python2.2 python2.1 dnl
 python2.0])

  AC_ARG_VAR([PYTHON], [the Python interpreter])

  m4_if([$1],[],[
    dnl No version check is needed.
    # Find any Python interpreter.
    if test -z "$PYTHON"; then
      AC_PATH_PROGS([PYTHON], _AM_PYTHON_INTERPRETER_LIST, :)
    fi
    am_display_PYTHON=python
  ], [
    dnl A version check is needed.
    if test -n "$PYTHON"; then
      # If the user set $PYTHON, use it and don't search something else.
      AC_MSG_CHECKING([whether $PYTHON version is >= $1])
      AM_PYTHON_CHECK_VERSION([$PYTHON], [$1],
			      [AC_MSG_RESULT([yes])],
			      [AC_MSG_RESULT([no])
			       AC_MSG_ERROR([Python interpreter is too old])])
      am_display_PYTHON=$PYTHON
    else
      # Otherwise, try each interpreter until we find one that satisfies
      # VERSION.
      AC_CACHE_CHECK([for a Python interpreter with version >= $1],
	[am_cv_pathless_PYTHON],[
	for am_cv_pathless_PYTHON in _AM_PYTHON_INTERPRETER_LIST none; do
	  test "$am_cv_pathless_PYTHON" = none && break
	  AM_PYTHON_CHECK_VERSION([$am_cv_pathless_PYTHON], [$1], [break])
	done])
      # Set $PYTHON to the absolute path of $am_cv_pathless_PYTHON.
      if test "$am_cv_pathless_PYTHON" = none; then
	PYTHON=:
      else
        AC_PATH_PROG([PYTHON], [$am_cv_pathless_PYTHON])
      fi
      am_display_PYTHON=$am_cv_pathless_PYTHON
    fi
  ])

  if test "$PYTHON" = :; then
    dnl Run any user-specified action, or abort.
    m4_default([$3], [AC_MSG_ERROR([no suitable Python interpreter found])])
  else

  dnl Query Python for its version number.  Although site.py simply uses
  dnl sys.version[:3], printing that failed with Python 3.10, since the
  dnl trailing zero was eliminated. So now we output just the major
  dnl and minor version numbers, as numbers. Apparently the tertiary
  dnl version is not of interest.
  dnl
  AC_CACHE_CHECK([for $am_display_PYTHON version], [am_cv_python_version],
    [am_cv_python_version=`$PYTHON -c "import sys; print ('%u.%u' % sys.version_info[[:2]])"`])
  AC_SUBST([PYTHON_VERSION], [$am_cv_python_version])

  dnl At times, e.g., when building shared libraries, you may want
  dnl to know which OS platform Python thinks this is.
  dnl
  AC_CACHE_CHECK([for $am_display_PYTHON platform], [am_cv_python_platform],
    [am_cv_python_platform=`$PYTHON -c "import sys; sys.stdout.write(sys.platform)"`])
  AC_SUBST([PYTHON_PLATFORM], [$am_cv_python_platform])

  dnl emacs-page
  dnl If --with-python-sys-prefix is given, use the values of sys.prefix
  dnl and sys.exec_prefix for the corresponding values of PYTHON_PREFIX
  dnl and PYTHON_EXEC_PREFIX. Otherwise, use the GNU ${prefix} and
  dnl ${exec_prefix} variables.
  dnl
  dnl The two are made distinct variables so they can be overridden if
  dnl need be, although general consensus is that you shouldn't need
  dnl this separation.
  dnl
  dnl Also allow directly setting the prefixes via configure options,
  dnl overriding any default.
  dnl
  if test "x$prefix" = xNONE; then
    am__usable_prefix=$ac_default_prefix
  else
    am__usable_prefix=$prefix
  fi

  # Allow user to request using sys.* values from Python,
  # instead of the GNU $prefix values.
  AC_ARG_WITH([python-sys-prefix],
  [AS_HELP_STRING([--with-python-sys-prefix],
                  [use Python's sys.prefix and sys.exec_prefix values])],
  [am_use_python_sys=:],
  [am_use_python_sys=false])

  # Allow user to override whatever the default Python prefix is.
  AC_ARG_WITH([python_prefix],
  [AS_HELP_STRING([--with-python_prefix],
                  [override the default PYTHON_PREFIX])],
  [am_python_prefix_subst=$withval
   am_cv_python_prefix=$withval
   AC_MSG_CHECKING([for explicit $am_display_PYTHON prefix])
   AC_MSG_RESULT([$am_cv_python_prefix])],
  [
   if $am_use_python_sys; then
     # using python sys.prefix value, not GNU
     AC_CACHE_CHECK([for python default $am_display_PYTHON prefix],
     [am_cv_python_prefix],
     [am_cv_python_prefix=`$PYTHON -c "import sys; sys.stdout.write(sys.prefix)"`])

     dnl If sys.prefix is a subdir of $prefix, replace the literal value of
     dnl $prefix with a variable reference so it can be overridden.
     case $am_cv_python_prefix in
     $am__usable_prefix*)
       am__strip_prefix=`echo "$am__usable_prefix" | sed 's|.|.|g'`
       am_python_prefix_subst=`echo "$am_cv_python_prefix" | sed "s,^$am__strip_prefix,\\${prefix},"`
       ;;
     *)
       am_python_prefix_subst=$am_cv_python_prefix
       ;;
     esac
   else # using GNU prefix value, not python sys.prefix
     am_python_prefix_subst='${prefix}'
     am_python_prefix=$am_python_prefix_subst
     AC_MSG_CHECKING([for GNU default $am_display_PYTHON prefix])
     AC_MSG_RESULT([$am_python_prefix])
   fi])
  # Substituting python_prefix_subst value.
  AC_SUBST([PYTHON_PREFIX], [$am_python_prefix_subst])

  # emacs-page Now do it all over again for Python exec_prefix, but with yet
  # another conditional: fall back to regular prefix if that was specified.
  AC_ARG_WITH([python_exec_prefix],
  [AS_HELP_STRING([--with-python_exec_prefix],
                  [override the default PYTHON_EXEC_PREFIX])],
  [am_python_exec_prefix_subst=$withval
   am_cv_python_exec_prefix=$withval
   AC_MSG_CHECKING([for explicit $am_display_PYTHON exec_prefix])
   AC_MSG_RESULT([$am_cv_python_exec_prefix])],
  [
   # no explicit --with-python_exec_prefix, but if
   # --with-python_prefix was given, use its value for python_exec_prefix too.
   AS_IF([test -n "$with_python_prefix"],
   [am_python_exec_prefix_subst=$with_python_prefix
    am_cv_python_exec_prefix=$with_python_prefix
    AC_MSG_CHECKING([for python_prefix-given $am_display_PYTHON exec_prefix])
    AC_MSG_RESULT([$am_cv_python_exec_prefix])],
   [
    # Set am__usable_exec_prefix whether using GNU or Python values,
    # since we use that variable for pyexecdir.
    if test "x$exec_prefix" = xNONE; then
      am__usable_exec_prefix=$am__usable_prefix
    else
      am__usable_exec_prefix=$exec_prefix
    fi
    #
    if $am_use_python_sys; then # using python sys.exec_prefix, not GNU
      AC_CACHE_CHECK([for python default $am_display_PYTHON exec_prefix],
      [am_cv_python_exec_prefix],
      [am_cv_python_exec_prefix=`$PYTHON -c "import sys; sys.stdout.write(sys.exec_prefix)"`])
      dnl If sys.exec_prefix is a subdir of $exec_prefix, replace the
      dnl literal value of $exec_prefix with a variable reference so it can
      dnl be overridden.
      case $am_cv_python_exec_prefix in
      $am__usable_exec_prefix*)
        am__strip_prefix=`echo "$am__usable_exec_prefix" | sed 's|.|.|g'`
        am_python_exec_prefix_subst=`echo "$am_cv_python_exec_prefix" | sed "s,^$am__strip_prefix,\\${exec_prefix},"`
        ;;
      *)
        am_python_exec_prefix_subst=$am_cv_python_exec_prefix
        ;;
     esac
   else # using GNU $exec_prefix, not python sys.exec_prefix
     am_python_exec_prefix_subst='${exec_prefix}'
     am_python_exec_prefix=$am_python_exec_prefix_subst
     AC_MSG_CHECKING([for GNU default $am_display_PYTHON exec_prefix])
     AC_MSG_RESULT([$am_python_exec_prefix])
   fi])])
  # Substituting python_exec_prefix_subst.
  AC_SUBST([PYTHON_EXEC_PREFIX], [$am_python_exec_prefix_subst])

  # Factor out some code duplication into this shell variable.
  am_python_setup_sysconfig="\
import sys
# Prefer sysconfig over distutils.sysconfig, for better compatibility
# with python 3.x.  See automake bug#10227.
try:
    import sysconfig
except ImportError:
    can_use_sysconfig = 0
else:
    can_use_sysconfig = 1
# Can't use sysconfig in CPython 2.7, since it's broken in virtualenvs:
# <https://github.com/pypa/virtualenv/issues/118>
try:
    from platform import python_implementation
    if python_implementation() == 'CPython' and sys.version[[:3]] == '2.7':
        can_use_sysconfig = 0
except ImportError:
    pass"

  dnl emacs-page Set up 4 directories:

  dnl 1. pythondir: where to install python scripts.  This is the
  dnl    site-packages directory, not the python standard library
  dnl    directory like in previous automake betas.  This behavior
  dnl    is more consistent with lispdir.m4 for example.
  dnl Query distutils for this directory.
  dnl
  AC_CACHE_CHECK([for $am_display_PYTHON script directory (pythondir)],
  [am_cv_python_pythondir],
  [if test "x$am_cv_python_prefix" = x; then
     am_py_prefix=$am__usable_prefix
   else
     am_py_prefix=$am_cv_python_prefix
   fi
   am_cv_python_pythondir=`$PYTHON -c "
$am_python_setup_sysconfig
if can_use_sysconfig:
  sitedir = sysconfig.get_path('purelib', vars={'base':'$am_py_prefix'})
else:
  from distutils import sysconfig
  sitedir = sysconfig.get_python_lib(0, 0, prefix='$am_py_prefix')
sys.stdout.write(sitedir)"`
   #
   case $am_cv_python_pythondir in
   $am_py_prefix*)
     am__strip_prefix=`echo "$am_py_prefix" | sed 's|.|.|g'`
     am_cv_python_pythondir=`echo "$am_cv_python_pythondir" | sed "s,^$am__strip_prefix,\\${PYTHON_PREFIX},"`
     ;;
   *)
     case $am_py_prefix in
       /usr|/System*) ;;
       *) am_cv_python_pythondir="\${PYTHON_PREFIX}/lib/python$PYTHON_VERSION/site-packages"
          ;;
     esac
     ;;
   esac
  ])
  AC_SUBST([pythondir], [$am_cv_python_pythondir])

  dnl 2. pkgpythondir: $PACKAGE directory under pythondir.  Was
  dnl    PYTHON_SITE_PACKAGE in previous betas, but this naming is
  dnl    more consistent with the rest of automake.
  dnl
  AC_SUBST([pkgpythondir], [\${pythondir}/$PACKAGE])

  dnl 3. pyexecdir: directory for installing python extension modules
  dnl    (shared libraries).
  dnl Query distutils for this directory.
  dnl
  AC_CACHE_CHECK([for $am_display_PYTHON extension module directory (pyexecdir)],
  [am_cv_python_pyexecdir],
  [if test "x$am_cv_python_exec_prefix" = x; then
     am_py_exec_prefix=$am__usable_exec_prefix
   else
     am_py_exec_prefix=$am_cv_python_exec_prefix
   fi
   am_cv_python_pyexecdir=`$PYTHON -c "
$am_python_setup_sysconfig
if can_use_sysconfig:
  sitedir = sysconfig.get_path('platlib', vars={'platbase':'$am_py_exec_prefix'})
else:
  from distutils import sysconfig
  sitedir = sysconfig.get_python_lib(1, 0, prefix='$am_py_exec_prefix')
sys.stdout.write(sitedir)"`
   #
   case $am_cv_python_pyexecdir in
   $am_py_exec_prefix*)
     am__strip_prefix=`echo "$am_py_exec_prefix" | sed 's|.|.|g'`
     am_cv_python_pyexecdir=`echo "$am_cv_python_pyexecdir" | sed "s,^$am__strip_prefix,\\${PYTHON_EXEC_PREFIX},"`
     ;;
   *)
     case $am_py_exec_prefix in
       /usr|/System*) ;;
       *) am_cv_python_pyexecdir="\${PYTHON_EXEC_PREFIX}/lib/python$PYTHON_VERSION/site-packages"
          ;;
     esac
     ;;
   esac
  ])
  AC_SUBST([pyexecdir], [$am_cv_python_pyexecdir])

  dnl 4. pkgpyexecdir: $(pyexecdir)/$(PACKAGE)
  dnl
  AC_SUBST([pkgpyexecdir], [\${pyexecdir}/$PACKAGE])

  dnl Run any user-specified action.
  $2
  fi
])


# AM_PYTHON_CHECK_VERSION(PROG, VERSION, [ACTION-IF-TRUE], [ACTION-IF-FALSE])
# ---------------------------------------------------------------------------
# Run ACTION-IF-TRUE if the Python interpreter PROG has version >= VERSION.
# Run ACTION-IF-FALSE otherwise.
# This test uses sys.hexversion instead of the string equivalent (first
# word of sys.version), in order to cope with versions such as 2.2c1.
# This supports Python 2.0 or higher. (2.0 was released on October 16, 2000).
AC_DEFUN([AM_PYTHON_CHECK_VERSION],
 [prog="import sys
# split strings by '.' and convert to numeric.  Append some zeros
# because we need at least 4 digits for the hex conversion.
# map returns an iterator in Python 3.0 and a list in 2.x
minver = list(map(int, '$2'.split('.'))) + [[0, 0, 0]]
minverhex = 0
# xrange is not present in Python 3.0 and range returns an iterator
for i in list(range(0, 4)): minverhex = (minverhex << 8) + minver[[i]]
sys.exit(sys.hexversion < minverhex)"
  AS_IF([AM_RUN_LOG([$1 -c "$prog"])], [$3], [$4])])

# Copyright (C) 2001-2021 Free Software Foundation, Inc.
#
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.

# AM_RUN_LOG(COMMAND)
# -------------------
# Run COMMAND, save the exit status in ac_status, and log it.
# (This has been adapted from Autoconf's _AC_RUN_LOG macro.)
AC_DEFUN([AM_RUN_LOG],
[{ echo "$as_me:$LINENO: $1" >&AS_MESSAGE_LOG_FD
   ($1) >&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD
   ac_status=$?
   echo "$as_me:$LINENO: \$? = $ac_status" >&AS_MESSAGE_LOG_FD
   (exit $ac_status); }])

# ===========================================================================
#      https://www.gnu.org/software/autoconf-archive/ax_boost_base.html
# ===========================================================================
#
# SYNOPSIS
#
#   AX_BOOST_BASE([MINIMUM-VERSION], [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
#
# DESCRIPTION
#
#   Test for the Boost C++ libraries of a particular version (or newer)
#
#   If no path to the installed boost library is given the macro searches
#   under /usr, /usr/local, /opt, /opt/local and /opt/homebrew and evaluates
#   the $BOOST_ROOT environment variable. Further documentation is available
#   at <http://randspringer.de/boost/index.html>.
#
#   This macro calls:
#
#     AC_SUBST(BOOST_CPPFLAGS) / AC_SUBST(BOOST_LDFLAGS)
#
#   And sets:
#
#     HAVE_BOOST
#
# LICENSE
#
#   Copyright (c) 2008 Thomas Porschberg <thomas@randspringer.de>
#   Copyright (c) 2009 Peter Adolphs
#
#   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. This file is offered as-is, without any
#   warranty.

#serial 52

# example boost program (need to pass version)
m4_define([_AX_BOOST_BASE_PROGRAM],
          [AC_LANG_PROGRAM([[
#include <boost/version.hpp>
]],[[
(void) ((void)sizeof(char[1 - 2*!!((BOOST_VERSION) < ($1))]));
]])])

AC_DEFUN([AX_BOOST_BASE],
[
AC_ARG_WITH([boost],
  [AS_HELP_STRING([--with-boost@<:@=ARG@:>@],
    [use Boost library from a standard location (ARG=yes),
     from the specified location (ARG=<path>),
     or disable it (ARG=no)
     @<:@ARG=yes@:>@ ])],
    [
     AS_CASE([$withval],
       [no],[want_boost="no";_AX_BOOST_BASE_boost_path=""],
       [yes],[want_boost="yes";_AX_BOOST_BASE_boost_path=""],
       [want_boost="yes";_AX_BOOST_BASE_boost_path="$withval"])
    ],
    [want_boost="yes"])


AC_ARG_WITH([boost-libdir],
  [AS_HELP_STRING([--with-boost-libdir=LIB_DIR],
    [Force given directory for boost libraries.
     Note that this will override library path detection,
     so use this parameter only if default library detection fails
     and you know exactly where your boost libraries are located.])],
  [
   AS_IF([test -d "$withval"],
         [_AX_BOOST_BASE_boost_lib_path="$withval"],
    [AC_MSG_ERROR([--with-boost-libdir expected directory name])])
  ],
  [_AX_BOOST_BASE_boost_lib_path=""])

BOOST_LDFLAGS=""
BOOST_CPPFLAGS=""
AS_IF([test "x$want_boost" = "xyes"],
      [_AX_BOOST_BASE_RUNDETECT([$1],[$2],[$3])])
AC_SUBST(BOOST_CPPFLAGS)
AC_SUBST(BOOST_LDFLAGS)
])


# convert a version string in $2 to numeric and affect to polymorphic var $1
AC_DEFUN([_AX_BOOST_BASE_TONUMERICVERSION],[
  AS_IF([test "x$2" = "x"],[_AX_BOOST_BASE_TONUMERICVERSION_req="1.20.0"],[_AX_BOOST_BASE_TONUMERICVERSION_req="$2"])
  _AX_BOOST_BASE_TONUMERICVERSION_req_shorten=`expr $_AX_BOOST_BASE_TONUMERICVERSION_req : '\([[0-9]]*\.[[0-9]]*\)'`
  _AX_BOOST_BASE_TONUMERICVERSION_req_major=`expr $_AX_BOOST_BASE_TONUMERICVERSION_req : '\([[0-9]]*\)'`
  AS_IF([test "x$_AX_BOOST_BASE_TONUMERICVERSION_req_major" = "x"],
        [AC_MSG_ERROR([You should at least specify libboost major version])])
  _AX_BOOST_BASE_TONUMERICVERSION_req_minor=`expr $_AX_BOOST_BASE_TONUMERICVERSION_req : '[[0-9]]*\.\([[0-9]]*\)'`
  AS_IF([test "x$_AX_BOOST_BASE_TONUMERICVERSION_req_minor" = "x"],
        [_AX_BOOST_BASE_TONUMERICVERSION_req_minor="0"])
  _AX_BOOST_BASE_TONUMERICVERSION_req_sub_minor=`expr $_AX_BOOST_BASE_TONUMERICVERSION_req : '[[0-9]]*\.[[0-9]]*\.\([[0-9]]*\)'`
  AS_IF([test "X$_AX_BOOST_BASE_TONUMERICVERSION_req_sub_minor" = "X"],
        [_AX_BOOST_BASE_TONUMERICVERSION_req_sub_minor="0"])
  _AX_BOOST_BASE_TONUMERICVERSION_RET=`expr $_AX_BOOST_BASE_TONUMERICVERSION_req_major \* 100000 \+  $_AX_BOOST_BASE_TONUMERICVERSION_req_minor \* 100 \+ $_AX_BOOST_BASE_TONUMERICVERSION_req_sub_minor`
  AS_VAR_SET($1,$_AX_BOOST_BASE_TONUMERICVERSION_RET)
])

dnl Run the detection of boost should be run only if $want_boost
AC_DEFUN([_AX_BOOST_BASE_RUNDETECT],[
    _AX_BOOST_BASE_TONUMERICVERSION(WANT_BOOST_VERSION,[$1])
    succeeded=no


    AC_REQUIRE([AC_CANONICAL_HOST])
    dnl On 64-bit systems check for system libraries in both lib64 and lib.
    dnl The former is specified by FHS, but e.g. Debian does not adhere to
    dnl this (as it rises problems for generic multi-arch support).
    dnl The last entry in the list is chosen by default when no libraries
    dnl are found, e.g. when only header-only libraries are installed!
    AS_CASE([${host_cpu}],
      [x86_64],[libsubdirs="lib64 libx32 lib lib64"],
      [mips*64*],[libsubdirs="lib64 lib32 lib lib64"],
      [ppc64|powerpc64|s390x|sparc64|aarch64|ppc64le|powerpc64le|riscv64|e2k|loongarch64],[libsubdirs="lib64 lib lib64"],
      [libsubdirs="lib"]
    )

    dnl allow for real multi-arch paths e.g. /usr/lib/x86_64-linux-gnu. Give
    dnl them priority over the other paths since, if libs are found there, they
    dnl are almost assuredly the ones desired.
    AS_CASE([${host_cpu}],
      [i?86],[multiarch_libsubdir="lib/i386-${host_os}"],
      [armv7l],[multiarch_libsubdir="lib/arm-${host_os}"],
      [multiarch_libsubdir="lib/${host_cpu}-${host_os}"]
    )

    dnl first we check the system location for boost libraries
    dnl this location is chosen if boost libraries are installed with the --layout=system option
    dnl or if you install boost with RPM
    AS_IF([test "x$_AX_BOOST_BASE_boost_path" != "x"],[
        AC_MSG_CHECKING([for boostlib >= $1 ($WANT_BOOST_VERSION) includes in "$_AX_BOOST_BASE_boost_path/include"])
         AS_IF([test -d "$_AX_BOOST_BASE_boost_path/include" && test -r "$_AX_BOOST_BASE_boost_path/include"],[
           AC_MSG_RESULT([yes])
           BOOST_CPPFLAGS="-I$_AX_BOOST_BASE_boost_path/include"
           for _AX_BOOST_BASE_boost_path_tmp in $multiarch_libsubdir $libsubdirs; do
                AC_MSG_CHECKING([for boostlib >= $1 ($WANT_BOOST_VERSION) lib path in "$_AX_BOOST_BASE_boost_path/$_AX_BOOST_BASE_boost_path_tmp"])
                AS_IF([test -d "$_AX_BOOST_BASE_boost_path/$_AX_BOOST_BASE_boost_path_tmp" && test -r "$_AX_BOOST_BASE_boost_path/$_AX_BOOST_BASE_boost_path_tmp" ],[
                        AC_MSG_RESULT([yes])
                        BOOST_LDFLAGS="-L$_AX_BOOST_BASE_boost_path/$_AX_BOOST_BASE_boost_path_tmp";
                        break;
                ],
      [AC_MSG_RESULT([no])])
           done],[
      AC_MSG_RESULT([no])])
    ],[
        if test X"$cross_compiling" = Xyes; then
            search_libsubdirs=$multiarch_libsubdir
        else
            search_libsubdirs="$multiarch_libsubdir $libsubdirs"
        fi
        for _AX_BOOST_BASE_boost_path_tmp in /usr /usr/local /opt /opt/local /opt/homebrew ; do
            if test -d "$_AX_BOOST_BASE_boost_path_tmp/include/boost" && test -r "$_AX_BOOST_BASE_boost_path_tmp/include/boost" ; then
                for libsubdir in $search_libsubdirs ; do
                    if ls "$_AX_BOOST_BASE_boost_path_tmp/$libsubdir/libboost_"* >/dev/null 2>&1 ; then break; fi
                done
                BOOST_LDFLAGS="-L$_AX_BOOST_BASE_boost_path_tmp/$libsubdir"
                BOOST_CPPFLAGS="-I$_AX_BOOST_BASE_boost_path_tmp/include"
                break;
            fi
        done
    ])

    dnl overwrite ld flags if we have required special directory with
    dnl --with-boost-libdir parameter
    AS_IF([test "x$_AX_BOOST_BASE_boost_lib_path" != "x"],
          [BOOST_LDFLAGS="-L$_AX_BOOST_BASE_boost_lib_path"])

    AC_MSG_CHECKING([for boostlib >= $1 ($WANT_BOOST_VERSION)])
    CPPFLAGS_SAVED="$CPPFLAGS"
    CPPFLAGS="$CPPFLAGS $BOOST_CPPFLAGS"
    export CPPFLAGS

    LDFLAGS_SAVED="$LDFLAGS"
    LDFLAGS="$LDFLAGS $BOOST_LDFLAGS"
    export LDFLAGS

    AC_REQUIRE([AC_PROG_CXX])
    AC_LANG_PUSH(C++)
        AC_COMPILE_IFELSE([_AX_BOOST_BASE_PROGRAM($WANT_BOOST_VERSION)],[
        AC_MSG_RESULT(yes)
    succeeded=yes
    found_system=yes
        ],[
        ])
    AC_LANG_POP([C++])



    dnl if we found no boost with system layout we search for boost libraries
    dnl built and installed without the --layout=system option or for a staged(not installed) version
    if test "x$succeeded" != "xyes" ; then
        CPPFLAGS="$CPPFLAGS_SAVED"
        LDFLAGS="$LDFLAGS_SAVED"
        BOOST_CPPFLAGS=
        if test -z "$_AX_BOOST_BASE_boost_lib_path" ; then
            BOOST_LDFLAGS=
        fi
        _version=0
        if test -n "$_AX_BOOST_BASE_boost_path" ; then
            if test -d "$_AX_BOOST_BASE_boost_path" && test -r "$_AX_BOOST_BASE_boost_path"; then
                for i in `ls -d $_AX_BOOST_BASE_boost_path/include/boost-* 2>/dev/null`; do
                    _version_tmp=`echo $i | sed "s#$_AX_BOOST_BASE_boost_path##" | sed 's/\/include\/boost-//' | sed 's/_/./'`
                    V_CHECK=`expr $_version_tmp \> $_version`
                    if test "x$V_CHECK" = "x1" ; then
                        _version=$_version_tmp
                    fi
                    VERSION_UNDERSCORE=`echo $_version | sed 's/\./_/'`
                    BOOST_CPPFLAGS="-I$_AX_BOOST_BASE_boost_path/include/boost-$VERSION_UNDERSCORE"
                done
                dnl if nothing found search for layout used in Windows distributions
                if test -z "$BOOST_CPPFLAGS"; then
                    if test -d "$_AX_BOOST_BASE_boost_path/boost" && test -r "$_AX_BOOST_BASE_boost_path/boost"; then
                        BOOST_CPPFLAGS="-I$_AX_BOOST_BASE_boost_path"
                    fi
                fi
                dnl if we found something and BOOST_LDFLAGS was unset before
                dnl (because "$_AX_BOOST_BASE_boost_lib_path" = ""), set it here.
                if test -n "$BOOST_CPPFLAGS" && test -z "$BOOST_LDFLAGS"; then
                    for libsubdir in $libsubdirs ; do
                        if ls "$_AX_BOOST_BASE_boost_path/$libsubdir/libboost_"* >/dev/null 2>&1 ; then break; fi
                    done
                    BOOST_LDFLAGS="-L$_AX_BOOST_BASE_boost_path/$libsubdir"
                fi
            fi
        else
            if test "x$cross_compiling" != "xyes" ; then
                for _AX_BOOST_BASE_boost_path in /usr /usr/local /opt /opt/local /opt/homebrew ; do
                    if test -d "$_AX_BOOST_BASE_boost_path" && test -r "$_AX_BOOST_BASE_boost_path" ; then
                        for i in `ls -d $_AX_BOOST_BASE_boost_path/include/boost-* 2>/dev/null`; do
                            _version_tmp=`echo $i | sed "s#$_AX_BOOST_BASE_boost_path##" | sed 's/\/include\/boost-//' | sed 's/_/./'`
                            V_CHECK=`expr $_version_tmp \> $_version`
                            if test "x$V_CHECK" = "x1" ; then
                                _version=$_version_tmp
                                best_path=$_AX_BOOST_BASE_boost_path
                            fi
                        done
                    fi
                done

                VERSION_UNDERSCORE=`echo $_version | sed 's/\./_/'`
                BOOST_CPPFLAGS="-I$best_path/include/boost-$VERSION_UNDERSCORE"
                if test -z "$_AX_BOOST_BASE_boost_lib_path" ; then
                    for libsubdir in $libsubdirs ; do
                        if ls "$best_path/$libsubdir/libboost_"* >/dev/null 2>&1 ; then break; fi
                    done
                    BOOST_LDFLAGS="-L$best_path/$libsubdir"
                fi
            fi

            if test -n "$BOOST_ROOT" ; then
                for libsubdir in $libsubdirs ; do
                    if ls "$BOOST_ROOT/stage/$libsubdir/libboost_"* >/dev/null 2>&1 ; then break; fi
                done
                if test -d "$BOOST_ROOT" && test -r "$BOOST_ROOT" && test -d "$BOOST_ROOT/stage/$libsubdir" && test -r "$BOOST_ROOT/stage/$libsubdir"; then
                    version_dir=`expr //$BOOST_ROOT : '.*/\(.*\)'`
                    stage_version=`echo $version_dir | sed 's/boost_//' | sed 's/_/./g'`
                        stage_version_shorten=`expr $stage_version : '\([[0-9]]*\.[[0-9]]*\)'`
                    V_CHECK=`expr $stage_version_shorten \>\= $_version`
                    if test "x$V_CHECK" = "x1" && test -z "$_AX_BOOST_BASE_boost_lib_path" ; then
                        AC_MSG_NOTICE(We will use a staged boost library from $BOOST_ROOT)
                        BOOST_CPPFLAGS="-I$BOOST_ROOT"
                        BOOST_LDFLAGS="-L$BOOST_ROOT/stage/$libsubdir"
                    fi
                fi
            fi
        fi

        CPPFLAGS="$CPPFLAGS $BOOST_CPPFLAGS"
        export CPPFLAGS
        LDFLAGS="$LDFLAGS $BOOST_LDFLAGS"
        export LDFLAGS

        AC_LANG_PUSH(C++)
            AC_COMPILE_IFELSE([_AX_BOOST_BASE_PROGRAM($WANT_BOOST_VERSION)],[
            AC_MSG_RESULT(yes)
        succeeded=yes
        found_system=yes
            ],[
            ])
        AC_LANG_POP([C++])
    fi

    if test "x$succeeded" != "xyes" ; then
        if test "x$_version" = "x0" ; then
            AC_MSG_NOTICE([[We could not detect the boost libraries (version $1 or higher). If you have a staged boost library (still not installed) please specify \$BOOST_ROOT in your environment and do not give a PATH to --with-boost option.  If you are sure you have boost installed, then check your version number looking in <boost/version.hpp>. See http://randspringer.de/boost for more documentation.]])
        else
            AC_MSG_NOTICE([Your boost libraries seems to old (version $_version).])
        fi
        # execute ACTION-IF-NOT-FOUND (if present):
        ifelse([$3], , :, [$3])
    else
        AC_DEFINE(HAVE_BOOST,,[define if the Boost library is available])
        # execute ACTION-IF-FOUND (if present):
        ifelse([$2], , :, [$2])
    fi

    CPPFLAGS="$CPPFLAGS_SAVED"
    LDFLAGS="$LDFLAGS_SAVED"

])

# ===========================================================================
#    https://www.gnu.org/software/autoconf-archive/ax_boost_date_time.html
# ===========================================================================
#
# SYNOPSIS
#
#   AX_BOOST_DATE_TIME
#
# DESCRIPTION
#
#   Test for Date_Time library from the Boost C++ libraries. The macro
#   requires a preceding call to AX_BOOST_BASE. Further documentation is
#   available at <http://randspringer.de/boost/index.html>.
#
#   This macro calls:
#
#     AC_SUBST(BOOST_DATE_TIME_LIB)
#
#   And sets:
#
#     HAVE_BOOST_DATE_TIME
#
# LICENSE
#
#   Copyright (c) 2008 Thomas Porschberg <thomas@randspringer.de>
#   Copyright (c) 2008 Michael Tindal
#
#   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. This file is offered as-is, without any
#   warranty.

#serial 23

AC_DEFUN([AX_BOOST_DATE_TIME],
[
	AC_ARG_WITH([boost-date-time],
	AS_HELP_STRING([--with-boost-date-time@<:@=special-lib@:>@],
                   [use the Date_Time library from boost - it is possible to specify a certain library for the linker
                        e.g. --with-boost-date-time=boost_date_time-gcc-mt-d-1_33_1 ]),
        [
        if test "$withval" = "no"; then
			want_boost="no"
        elif test "$withval" = "yes"; then
            want_boost="yes"
            ax_boost_user_date_time_lib=""
        else
		    want_boost="yes"
		ax_boost_user_date_time_lib="$withval"
		fi
        ],
        [want_boost="yes"]
	)

	if test "x$want_boost" = "xyes"; then
        AC_REQUIRE([AC_PROG_CC])
		CPPFLAGS_SAVED="$CPPFLAGS"
		CPPFLAGS="$CPPFLAGS $BOOST_CPPFLAGS"
		export CPPFLAGS

		LDFLAGS_SAVED="$LDFLAGS"
		LDFLAGS="$LDFLAGS $BOOST_LDFLAGS"
		export LDFLAGS

        AC_CACHE_CHECK(whether the Boost::Date_Time library is available,
					   ax_cv_boost_date_time,
        [AC_LANG_PUSH([C++])
		 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[@%:@include <boost/date_time/gregorian/gregorian_types.hpp>]],
                                   [[using namespace boost::gregorian; date d(2002,Jan,10);
                                     return 0;
                                   ]])],
         ax_cv_boost_date_time=yes, ax_cv_boost_date_time=no)
         AC_LANG_POP([C++])
		])
		if test "x$ax_cv_boost_date_time" = "xyes"; then
			AC_DEFINE(HAVE_BOOST_DATE_TIME,,[define if the Boost::Date_Time library is available])
            BOOSTLIBDIR=`echo $BOOST_LDFLAGS | sed -e 's/@<:@^\/@:>@*//'`
            if test "x$ax_boost_user_date_time_lib" = "x"; then
                for libextension in `ls $BOOSTLIBDIR/libboost_date_time*.so* $BOOSTLIBDIR/libboost_date_time*.dylib* $BOOSTLIBDIR/libboost_date_time*.a* 2>/dev/null | sed 's,.*/,,' | sed -e 's;^lib\(boost_date_time.*\)\.so.*$;\1;' -e 's;^lib\(boost_date_time.*\)\.dylib.*$;\1;' -e 's;^lib\(boost_date_time.*\)\.a*$;\1;'` ; do
                     ax_lib=${libextension}
				    AC_CHECK_LIB($ax_lib, exit,
                                 [BOOST_DATE_TIME_LIB="-l$ax_lib"; AC_SUBST(BOOST_DATE_TIME_LIB) link_date_time="yes"; break],
                                 [link_date_time="no"])
				done
                if test "x$link_date_time" != "xyes"; then
                for libextension in `ls $BOOSTLIBDIR/boost_date_time*.dll* $BOOSTLIBDIR/boost_date_time*.a* 2>/dev/null | sed 's,.*/,,' | sed -e 's;^\(boost_date_time.*\)\.dll.*$;\1;' -e 's;^\(boost_date_time.*\)\.a.*$;\1;'` ; do
                     ax_lib=${libextension}
				    AC_CHECK_LIB($ax_lib, exit,
                                 [BOOST_DATE_TIME_LIB="-l$ax_lib"; AC_SUBST(BOOST_DATE_TIME_LIB) link_date_time="yes"; break],
                                 [link_date_time="no"])
				done
                fi

            else
               for ax_lib in $ax_boost_user_date_time_lib boost_date_time-$ax_boost_user_date_time_lib; do
				      AC_CHECK_LIB($ax_lib, main,
                                   [BOOST_DATE_TIME_LIB="-l$ax_lib"; AC_SUBST(BOOST_DATE_TIME_LIB) link_date_time="yes"; break],
                                   [link_date_time="no"])
                  done

            fi
            if test "x$ax_lib" = "x"; then
                AC_MSG_ERROR(Could not find a version of the Boost::Date_Time library!)
            fi
			if test "x$link_date_time" != "xyes"; then
				AC_MSG_ERROR(Could not link against $ax_lib !)
			fi
		fi

		CPPFLAGS="$CPPFLAGS_SAVED"
	LDFLAGS="$LDFLAGS_SAVED"
	fi
])

# ===========================================================================
#   https://www.gnu.org/software/autoconf-archive/ax_boost_filesystem.html
# ===========================================================================
#
# SYNOPSIS
#
#   AX_BOOST_FILESYSTEM
#
# DESCRIPTION
#
#   Test for Filesystem library from the Boost C++ libraries. The macro
#   requires a preceding call to AX_BOOST_BASE. Further documentation is
#   available at <http://randspringer.de/boost/index.html>.
#
#   This macro calls:
#
#     AC_SUBST(BOOST_FILESYSTEM_LIB)
#
#   And sets:
#
#     HAVE_BOOST_FILESYSTEM
#
# LICENSE
#
#   Copyright (c) 2009 Thomas Porschberg <thomas@randspringer.de>
#   Copyright (c) 2009 Michael Tindal
#   Copyright (c) 2009 Roman Rybalko <libtorrent@romanr.info>
#
#   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. This file is offered as-is, without any
#   warranty.

#serial 28

AC_DEFUN([AX_BOOST_FILESYSTEM],
[
	AC_ARG_WITH([boost-filesystem],
	AS_HELP_STRING([--with-boost-filesystem@<:@=special-lib@:>@],
                   [use the Filesystem library from boost - it is possible to specify a certain library for the linker
                        e.g. --with-boost-filesystem=boost_filesystem-gcc-mt ]),
        [
        if test "$withval" = "no"; then
			want_boost="no"
        elif test "$withval" = "yes"; then
            want_boost="yes"
            ax_boost_user_filesystem_lib=""
        else
		    want_boost="yes"
		ax_boost_user_filesystem_lib="$withval"
		fi
        ],
        [want_boost="yes"]
	)

	if test "x$want_boost" = "xyes"; then
        AC_REQUIRE([AC_PROG_CC])
		CPPFLAGS_SAVED="$CPPFLAGS"
		CPPFLAGS="$CPPFLAGS $BOOST_CPPFLAGS"
		export CPPFLAGS

		LDFLAGS_SAVED="$LDFLAGS"
		LDFLAGS="$LDFLAGS $BOOST_LDFLAGS"
		export LDFLAGS

		LIBS_SAVED=$LIBS
		LIBS="$LIBS $BOOST_SYSTEM_LIB"
		export LIBS

        AC_CACHE_CHECK(whether the Boost::Filesystem library is available,
					   ax_cv_boost_filesystem,
        [AC_LANG_PUSH([C++])
         AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[@%:@include <boost/filesystem/path.hpp>]],
                                   [[using namespace boost::filesystem;
                                   path my_path( "foo/bar/data.txt" );
                                   return 0;]])],
					       ax_cv_boost_filesystem=yes, ax_cv_boost_filesystem=no)
         AC_LANG_POP([C++])
		])
		if test "x$ax_cv_boost_filesystem" = "xyes"; then
			AC_DEFINE(HAVE_BOOST_FILESYSTEM,,[define if the Boost::Filesystem library is available])
            BOOSTLIBDIR=`echo $BOOST_LDFLAGS | sed -e 's/@<:@^\/@:>@*//'`
            if test "x$ax_boost_user_filesystem_lib" = "x"; then
                for libextension in `ls -r $BOOSTLIBDIR/libboost_filesystem* 2>/dev/null | sed 's,.*/lib,,' | sed 's,\..*,,'` ; do
                     ax_lib=${libextension}
				    AC_CHECK_LIB($ax_lib, exit,
                                 [BOOST_FILESYSTEM_LIB="-l$ax_lib"; AC_SUBST(BOOST_FILESYSTEM_LIB) link_filesystem="yes"; break],
                                 [link_filesystem="no"])
				done
                if test "x$link_filesystem" != "xyes"; then
                for libextension in `ls -r $BOOSTLIBDIR/boost_filesystem* 2>/dev/null | sed 's,.*/,,' | sed -e 's,\..*,,'` ; do
                     ax_lib=${libextension}
				    AC_CHECK_LIB($ax_lib, exit,
                                 [BOOST_FILESYSTEM_LIB="-l$ax_lib"; AC_SUBST(BOOST_FILESYSTEM_LIB) link_filesystem="yes"; break],
                                 [link_filesystem="no"])
				done
		    fi
            else
               for ax_lib in $ax_boost_user_filesystem_lib boost_filesystem-$ax_boost_user_filesystem_lib; do
				      AC_CHECK_LIB($ax_lib, exit,
                                   [BOOST_FILESYSTEM_LIB="-l$ax_lib"; AC_SUBST(BOOST_FILESYSTEM_LIB) link_filesystem="yes"; break],
                                   [link_filesystem="no"])
                  done

            fi
            if test "x$ax_lib" = "x"; then
                AC_MSG_ERROR(Could not find a version of the Boost::Filesystem library!)
            fi
			if test "x$link_filesystem" != "xyes"; then
				AC_MSG_ERROR(Could not link against $ax_lib !)
			fi
		fi

		CPPFLAGS="$CPPFLAGS_SAVED"
		LDFLAGS="$LDFLAGS_SAVED"
		LIBS="$LIBS_SAVED"
	fi
])

# ===========================================================================
#    https://www.gnu.org/software/autoconf-archive/ax_boost_iostreams.html
# ===========================================================================
#
# SYNOPSIS
#
#   AX_BOOST_IOSTREAMS
#
# DESCRIPTION
#
#   Test for IOStreams library from the Boost C++ libraries. The macro
#   requires a preceding call to AX_BOOST_BASE. Further documentation is
#   available at <http://randspringer.de/boost/index.html>.
#
#   This macro calls:
#
#     AC_SUBST(BOOST_IOSTREAMS_LIB)
#
#   And sets:
#
#     HAVE_BOOST_IOSTREAMS
#
# LICENSE
#
#   Copyright (c) 2008 Thomas Porschberg <thomas@randspringer.de>
#
#   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. This file is offered as-is, without any
#   warranty.

#serial 22

AC_DEFUN([AX_BOOST_IOSTREAMS],
[
	AC_ARG_WITH([boost-iostreams],
	AS_HELP_STRING([--with-boost-iostreams@<:@=special-lib@:>@],
                   [use the IOStreams library from boost - it is possible to specify a certain library for the linker
                        e.g. --with-boost-iostreams=boost_iostreams-gcc-mt-d-1_33_1 ]),
        [
        if test "$withval" = "no"; then
			want_boost="no"
        elif test "$withval" = "yes"; then
            want_boost="yes"
            ax_boost_user_iostreams_lib=""
        else
		    want_boost="yes"
		ax_boost_user_iostreams_lib="$withval"
		fi
        ],
        [want_boost="yes"]
	)

	if test "x$want_boost" = "xyes"; then
        AC_REQUIRE([AC_PROG_CC])
		CPPFLAGS_SAVED="$CPPFLAGS"
		CPPFLAGS="$CPPFLAGS $BOOST_CPPFLAGS"
		export CPPFLAGS

		LDFLAGS_SAVED="$LDFLAGS"
		LDFLAGS="$LDFLAGS $BOOST_LDFLAGS"
		export LDFLAGS

        AC_CACHE_CHECK(whether the Boost::IOStreams library is available,
					   ax_cv_boost_iostreams,
        [AC_LANG_PUSH([C++])
		 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[@%:@include <boost/iostreams/filtering_stream.hpp>
											 @%:@include <boost/range/iterator_range.hpp>
											]],
                                  [[std::string  input = "Hello World!";
								 namespace io = boost::iostreams;
									 io::filtering_istream  in(boost::make_iterator_range(input));
									 return 0;
                                   ]])],
                             ax_cv_boost_iostreams=yes, ax_cv_boost_iostreams=no)
         AC_LANG_POP([C++])
		])
		if test "x$ax_cv_boost_iostreams" = "xyes"; then
			AC_DEFINE(HAVE_BOOST_IOSTREAMS,,[define if the Boost::IOStreams library is available])
            BOOSTLIBDIR=`echo $BOOST_LDFLAGS | sed -e 's/@<:@^\/@:>@*//'`
            if test "x$ax_boost_user_iostreams_lib" = "x"; then
                for libextension in `ls $BOOSTLIBDIR/libboost_iostreams*.so* $BOOSTLIBDIR/libboost_iostream*.dylib* $BOOSTLIBDIR/libboost_iostreams*.a* 2>/dev/null | sed 's,.*/,,' | sed -e 's;^lib\(boost_iostreams.*\)\.so.*$;\1;' -e 's;^lib\(boost_iostream.*\)\.dylib.*$;\1;' -e 's;^lib\(boost_iostreams.*\)\.a.*$;\1;'` ; do
                     ax_lib=${libextension}
				    AC_CHECK_LIB($ax_lib, exit,
                                 [BOOST_IOSTREAMS_LIB="-l$ax_lib"; AC_SUBST(BOOST_IOSTREAMS_LIB) link_iostreams="yes"; break],
                                 [link_iostreams="no"])
				done
                if test "x$link_iostreams" != "xyes"; then
                for libextension in `ls $BOOSTLIBDIR/boost_iostreams*.dll* $BOOSTLIBDIR/boost_iostreams*.a* 2>/dev/null | sed 's,.*/,,' | sed -e 's;^\(boost_iostreams.*\)\.dll.*$;\1;' -e 's;^\(boost_iostreams.*\)\.a.*$;\1;'` ; do
                     ax_lib=${libextension}
				    AC_CHECK_LIB($ax_lib, exit,
                                 [BOOST_IOSTREAMS_LIB="-l$ax_lib"; AC_SUBST(BOOST_IOSTREAMS_LIB) link_iostreams="yes"; break],
                                 [link_iostreams="no"])
				done
                fi

            else
               for ax_lib in $ax_boost_user_iostreams_lib boost_iostreams-$ax_boost_user_iostreams_lib; do
				      AC_CHECK_LIB($ax_lib, main,
                                   [BOOST_IOSTREAMS_LIB="-l$ax_lib"; AC_SUBST(BOOST_IOSTREAMS_LIB) link_iostreams="yes"; break],
                                   [link_iostreams="no"])
                  done

            fi
            if test "x$ax_lib" = "x"; then
                AC_MSG_ERROR(Could not find a version of the Boost::IOStreams library!)
            fi
			if test "x$link_iostreams" != "xyes"; then
				AC_MSG_ERROR(Could not link against $ax_lib !)
			fi
		fi

		CPPFLAGS="$CPPFLAGS_SAVED"
	LDFLAGS="$LDFLAGS_SAVED"
	fi
])

# ===========================================================================
#     https://www.gnu.org/software/autoconf-archive/ax_boost_locale.html
# ===========================================================================
#
# SYNOPSIS
#
#   AX_BOOST_LOCALE
#
# DESCRIPTION
#
#   Test for System library from the Boost C++ libraries. The macro requires
#   a preceding call to AX_BOOST_BASE. Further documentation is available at
#   <http://randspringer.de/boost/index.html>.
#
#   This macro calls:
#
#     AC_SUBST(BOOST_LOCALE_LIB)
#
#   And sets:
#
#     HAVE_BOOST_LOCALE
#
# LICENSE
#
#   Copyright (c) 2012 Xiyue Deng <manphiz@gmail.com>
#
#   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. This file is offered as-is, without any
#   warranty.

#serial 3

AC_DEFUN([AX_BOOST_LOCALE],
[
	AC_ARG_WITH([boost-locale],
	AS_HELP_STRING([--with-boost-locale@<:@=special-lib@:>@],
                   [use the Locale library from boost - it is possible to specify a certain library for the linker
                        e.g. --with-boost-locale=boost_locale-gcc-mt ]),
        [
        if test "$withval" = "no"; then
			want_boost="no"
        elif test "$withval" = "yes"; then
            want_boost="yes"
            ax_boost_user_locale_lib=""
        else
		    want_boost="yes"
		ax_boost_user_locale_lib="$withval"
		fi
        ],
        [want_boost="yes"]
	)

	if test "x$want_boost" = "xyes"; then
        AC_REQUIRE([AC_PROG_CC])
        AC_REQUIRE([AC_CANONICAL_BUILD])
		CPPFLAGS_SAVED="$CPPFLAGS"
		CPPFLAGS="$CPPFLAGS $BOOST_CPPFLAGS"
		export CPPFLAGS

		LDFLAGS_SAVED="$LDFLAGS"
		LDFLAGS="$LDFLAGS $BOOST_LDFLAGS"
		export LDFLAGS

        AC_CACHE_CHECK(whether the Boost::Locale library is available,
					   ax_cv_boost_locale,
        [AC_LANG_PUSH([C++])
			 CXXFLAGS_SAVE=$CXXFLAGS

			 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[@%:@include <boost/locale.hpp>]],
                                   [[boost::locale::generator gen;
                                   std::locale::global(gen(""));]])],
                   ax_cv_boost_locale=yes, ax_cv_boost_locale=no)
			 CXXFLAGS=$CXXFLAGS_SAVE
             AC_LANG_POP([C++])
		])
		if test "x$ax_cv_boost_locale" = "xyes"; then
			AC_SUBST(BOOST_CPPFLAGS)

			AC_DEFINE(HAVE_BOOST_LOCALE,,[define if the Boost::Locale library is available])
            BOOSTLIBDIR=`echo $BOOST_LDFLAGS | sed -e 's/@<:@^\/@:>@*//'`

			LDFLAGS_SAVE=$LDFLAGS
            if test "x$ax_boost_user_locale_lib" = "x"; then
                for libextension in `ls $BOOSTLIBDIR/libboost_locale*.so* $BOOSTLIBDIR/libboost_locale*.dylib* $BOOSTLIBDIR/libboost_locale*.a* 2>/dev/null | sed 's,.*/,,' | sed -e 's;^lib\(boost_locale.*\)\.so.*$;\1;' -e 's;^lib\(boost_locale.*\)\.dylib.*$;\1;' -e 's;^lib\(boost_locale.*\)\.a.*$;\1;'` ; do
                     ax_lib=${libextension}
				    AC_CHECK_LIB($ax_lib, exit,
                                 [BOOST_LOCALE_LIB="-l$ax_lib"; AC_SUBST(BOOST_LOCALE_LIB) link_locale="yes"; break],
                                 [link_locale="no"])
				done
                if test "x$link_locale" != "xyes"; then
                for libextension in `ls $BOOSTLIBDIR/boost_locale*.dll* $BOOSTLIBDIR/boost_locale*.a* 2>/dev/null | sed 's,.*/,,' | sed -e 's;^\(boost_locale.*\)\.dll.*$;\1;' -e 's;^\(boost_locale.*\)\.a.*$;\1;'` ; do
                     ax_lib=${libextension}
				    AC_CHECK_LIB($ax_lib, exit,
                                 [BOOST_LOCALE_LIB="-l$ax_lib"; AC_SUBST(BOOST_LOCALE_LIB) link_locale="yes"; break],
                                 [link_locale="no"])
				done
                fi

            else
               for ax_lib in $ax_boost_user_locale_lib boost_locale-$ax_boost_user_locale_lib; do
				      AC_CHECK_LIB($ax_lib, exit,
                                   [BOOST_LOCALE_LIB="-l$ax_lib"; AC_SUBST(BOOST_LOCALE_LIB) link_locale="yes"; break],
                                   [link_locale="no"])
                  done

            fi
            if test "x$ax_lib" = "x"; then
                AC_MSG_ERROR(Could not find a version of the Boost::Locale library!)
            fi
			if test "x$link_locale" = "xno"; then
				AC_MSG_ERROR(Could not link against $ax_lib !)
			fi
		fi

		CPPFLAGS="$CPPFLAGS_SAVED"
	LDFLAGS="$LDFLAGS_SAVED"
	fi
])

# ===========================================================================
#     https://www.gnu.org/software/autoconf-archive/ax_boost_system.html
# ===========================================================================
#
# SYNOPSIS
#
#   AX_BOOST_SYSTEM
#
# DESCRIPTION
#
#   Test for System library from the Boost C++ libraries. The macro requires
#   a preceding call to AX_BOOST_BASE. Further documentation is available at
#   <http://randspringer.de/boost/index.html>.
#
#   This macro calls:
#
#     AC_SUBST(BOOST_SYSTEM_LIB)
#
#   And sets:
#
#     HAVE_BOOST_SYSTEM
#
# LICENSE
#
#   Copyright (c) 2008 Thomas Porschberg <thomas@randspringer.de>
#   Copyright (c) 2008 Michael Tindal
#   Copyright (c) 2008 Daniel Casimiro <dan.casimiro@gmail.com>
#
#   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. This file is offered as-is, without any
#   warranty.

#serial 20

AC_DEFUN([AX_BOOST_SYSTEM],
[
	AC_ARG_WITH([boost-system],
	AS_HELP_STRING([--with-boost-system@<:@=special-lib@:>@],
                   [use the System library from boost - it is possible to specify a certain library for the linker
                        e.g. --with-boost-system=boost_system-gcc-mt ]),
        [
        if test "$withval" = "no"; then
			want_boost="no"
        elif test "$withval" = "yes"; then
            want_boost="yes"
            ax_boost_user_system_lib=""
        else
		    want_boost="yes"
		ax_boost_user_system_lib="$withval"
		fi
        ],
        [want_boost="yes"]
	)

	if test "x$want_boost" = "xyes"; then
        AC_REQUIRE([AC_PROG_CC])
        AC_REQUIRE([AC_CANONICAL_BUILD])
		CPPFLAGS_SAVED="$CPPFLAGS"
		CPPFLAGS="$CPPFLAGS $BOOST_CPPFLAGS"
		export CPPFLAGS

		LDFLAGS_SAVED="$LDFLAGS"
		LDFLAGS="$LDFLAGS $BOOST_LDFLAGS"
		export LDFLAGS

        AC_CACHE_CHECK(whether the Boost::System library is available,
					   ax_cv_boost_system,
        [AC_LANG_PUSH([C++])
			 CXXFLAGS_SAVE=$CXXFLAGS
			 CXXFLAGS=

			 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[@%:@include <boost/system/error_code.hpp>]],
				    [[boost::system::error_category *a = 0;]])],
                   ax_cv_boost_system=yes, ax_cv_boost_system=no)
			 CXXFLAGS=$CXXFLAGS_SAVE
             AC_LANG_POP([C++])
		])
		if test "x$ax_cv_boost_system" = "xyes"; then
			AC_SUBST(BOOST_CPPFLAGS)

			AC_DEFINE(HAVE_BOOST_SYSTEM,,[define if the Boost::System library is available])
            BOOSTLIBDIR=`echo $BOOST_LDFLAGS | sed -e 's/@<:@^\/@:>@*//'`

			LDFLAGS_SAVE=$LDFLAGS
            if test "x$ax_boost_user_system_lib" = "x"; then
                for libextension in `ls -r $BOOSTLIBDIR/libboost_system* 2>/dev/null | sed 's,.*/lib,,' | sed 's,\..*,,'` ; do
                     ax_lib=${libextension}
				    AC_CHECK_LIB($ax_lib, exit,
                                 [BOOST_SYSTEM_LIB="-l$ax_lib"; AC_SUBST(BOOST_SYSTEM_LIB) link_system="yes"; break],
                                 [link_system="no"])
				done
                if test "x$link_system" != "xyes"; then
                for libextension in `ls -r $BOOSTLIBDIR/boost_system* 2>/dev/null | sed 's,.*/,,' | sed -e 's,\..*,,'` ; do
                     ax_lib=${libextension}
				    AC_CHECK_LIB($ax_lib, exit,
                                 [BOOST_SYSTEM_LIB="-l$ax_lib"; AC_SUBST(BOOST_SYSTEM_LIB) link_system="yes"; break],
                                 [link_system="no"])
				done
                fi

            else
               for ax_lib in $ax_boost_user_system_lib boost_system-$ax_boost_user_system_lib; do
				      AC_CHECK_LIB($ax_lib, exit,
                                   [BOOST_SYSTEM_LIB="-l$ax_lib"; AC_SUBST(BOOST_SYSTEM_LIB) link_system="yes"; break],
                                   [link_system="no"])
                  done

            fi
            if test "x$ax_lib" = "x"; then
                AC_MSG_ERROR(Could not find a version of the Boost::System library!)
            fi
			if test "x$link_system" = "xno"; then
				AC_MSG_ERROR(Could not link against $ax_lib !)
			fi
		fi

		CPPFLAGS="$CPPFLAGS_SAVED"
	LDFLAGS="$LDFLAGS_SAVED"
	fi
])

dnl -*- mode: autoconf -*-
dnl Copyright 2009 Johan Dahlin
dnl
dnl This file is free software; the author(s) gives unlimited
dnl permission to copy and/or distribute it, with or without
dnl modifications, as long as this notice is preserved.
dnl

# serial 1

m4_define([_GOBJECT_INTROSPECTION_CHECK_INTERNAL],
[
    AC_BEFORE([AC_PROG_LIBTOOL],[$0])dnl setup libtool first
    AC_BEFORE([AM_PROG_LIBTOOL],[$0])dnl setup libtool first
    AC_BEFORE([LT_INIT],[$0])dnl setup libtool first

    dnl enable/disable introspection
    m4_if([$2], [require],
    [dnl
        enable_introspection=yes
    ],[dnl
        AC_ARG_ENABLE(introspection,
                  AS_HELP_STRING([--enable-introspection[=@<:@no/auto/yes@:>@]],
                                 [Enable introspection for this build]),,
                                 [enable_introspection=auto])
    ])dnl

    AC_MSG_CHECKING([for gobject-introspection])

    dnl presence/version checking
    AS_CASE([$enable_introspection],
    [no], [dnl
        found_introspection="no (disabled, use --enable-introspection to enable)"
    ],dnl
    [yes],[dnl
        PKG_CHECK_EXISTS([gobject-introspection-1.0],,
                         AC_MSG_ERROR([gobject-introspection-1.0 is not installed]))
        PKG_CHECK_EXISTS([gobject-introspection-1.0 >= $1],
                         found_introspection=yes,
                         AC_MSG_ERROR([You need to have gobject-introspection >= $1 installed to build AC_PACKAGE_NAME]))
    ],dnl
    [auto],[dnl
        PKG_CHECK_EXISTS([gobject-introspection-1.0 >= $1], found_introspection=yes, found_introspection=no)
	dnl Canonicalize enable_introspection
	enable_introspection=$found_introspection
    ],dnl
    [dnl
        AC_MSG_ERROR([invalid argument passed to --enable-introspection, should be one of @<:@no/auto/yes@:>@])
    ])dnl

    AC_MSG_RESULT([$found_introspection])

    INTROSPECTION_SCANNER=
    INTROSPECTION_COMPILER=
    INTROSPECTION_GENERATE=
    INTROSPECTION_GIRDIR=
    INTROSPECTION_TYPELIBDIR=
    if test "x$found_introspection" = "xyes"; then
       INTROSPECTION_SCANNER=`$PKG_CONFIG --variable=g_ir_scanner gobject-introspection-1.0`
       INTROSPECTION_COMPILER=`$PKG_CONFIG --variable=g_ir_compiler gobject-introspection-1.0`
       INTROSPECTION_GENERATE=`$PKG_CONFIG --variable=g_ir_generate gobject-introspection-1.0`
       INTROSPECTION_GIRDIR=`$PKG_CONFIG --variable=girdir gobject-introspection-1.0`
       INTROSPECTION_TYPELIBDIR="$($PKG_CONFIG --variable=typelibdir gobject-introspection-1.0)"
       INTROSPECTION_CFLAGS=`$PKG_CONFIG --cflags gobject-introspection-1.0`
       INTROSPECTION_LIBS=`$PKG_CONFIG --libs gobject-introspection-1.0`
       INTROSPECTION_MAKEFILE=`$PKG_CONFIG --variable=datadir gobject-introspection-1.0`/gobject-introspection-1.0/Makefile.introspection
    fi
    AC_SUBST(INTROSPECTION_SCANNER)
    AC_SUBST(INTROSPECTION_COMPILER)
    AC_SUBST(INTROSPECTION_GENERATE)
    AC_SUBST(INTROSPECTION_GIRDIR)
    AC_SUBST(INTROSPECTION_TYPELIBDIR)
    AC_SUBST(INTROSPECTION_CFLAGS)
    AC_SUBST(INTROSPECTION_LIBS)
    AC_SUBST(INTROSPECTION_MAKEFILE)
])


dnl Usage:
dnl   GOBJECT_INTROSPECTION_CHECK([minimum-g-i-version])

AC_DEFUN([GOBJECT_INTROSPECTION_CHECK],
[
  _GOBJECT_INTROSPECTION_CHECK_INTERNAL([$1])
])

dnl Usage:
dnl   GOBJECT_INTROSPECTION_REQUIRE([minimum-g-i-version])


AC_DEFUN([GOBJECT_INTROSPECTION_REQUIRE],
[
  _GOBJECT_INTROSPECTION_CHECK_INTERNAL([$1], [require])
])

# Some versions of gcc/libstdc++ require linking with -latomic if
# using the C++ atomic library.
#
# Sourced from http://bugs.debian.org/797228

m4_define([_CHECK_L_ATOMIC_testbody], [[
  #include <atomic>
  #include <cstdint>

  int main() {
    std::atomic<int64_t> a{};

    int64_t v = 5;
    int64_t r = a.fetch_add(v);
    return static_cast<int>(r);
  }
]])

AC_DEFUN([CHECK_L_ATOMIC], [

  AC_LANG_PUSH(C++)

  AC_MSG_CHECKING([whether std::atomic can be used without link library])

  AC_LINK_IFELSE([AC_LANG_SOURCE([_CHECK_L_ATOMIC_testbody])],[
      AC_MSG_RESULT([yes])
    ],[
      AC_MSG_RESULT([no])
      LIBS="$LIBS -latomic"
      AC_MSG_CHECKING([whether std::atomic needs -latomic])
      AC_LINK_IFELSE([AC_LANG_SOURCE([_CHECK_L_ATOMIC_testbody])],[
          AC_MSG_RESULT([yes])
          ATOMIC_LIB=-latomic
        ],[
          AC_MSG_RESULT([no])
          AC_MSG_FAILURE([cannot figure our how to use std::atomic])
        ])
    ])

  AC_LANG_POP
])

dnl -*- Mode: Autoconf; tab-width: 4; indent-tabs-mode: nil; fill-column: 102 -*-
#
# This file is part of the LibreOffice project.
#
# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.
#
AC_DEFUN([libo_CHECK_EXTENSION],[
AC_ARG_ENABLE(ext-$4,
    AS_HELP_STRING([--enable-ext-$4],
        [Enable the $1 extension])
)
AC_MSG_CHECKING([for building the $1 extension])
$2_EXTENSION_PACK=
if test "x$enable_ext_$3" = "xyes" -a "x$enable_extension_integration" != "xno"; then
    SCPDEFS="$SCPDEFS -DWITH_EXTENSION_$2"
    $2_EXTENSION_PACK="$5"
    BUILD_TYPE="$BUILD_TYPE $2"
    WITH_EXTRA_EXTENSIONS=TRUE
    AC_MSG_RESULT([yes])
else
    AC_MSG_RESULT([no])
fi
AC_SUBST($2_EXTENSION_PACK)
])

dnl vim:set shiftwidth=4 softtabstop=4 expandtab:

dnl -*- Mode: Autoconf; tab-width: 4; indent-tabs-mode: nil; fill-column: 102 -*-
#
# This file is part of the LibreOffice project.
#
# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.
#
AC_DEFUN([libo_ENABLE_VCLPLUG],[
dnl The $1 of enable_var is taken from the libo_ENABLE_VCLPLUG, so concat
dnl needs extra quoting and enable_var has no "magic" argument.
m4_pushdef([concat],[$][1][$][2])
m4_pushdef([enable_var],[concat(ENABLE_,m4_toupper($1))])

enable_var=
if test "$test_$1" != no -a "$enable_$1" = yes; then
    enable_var=TRUE
    AC_DEFINE(enable_var)
    R="$R $1"
fi
AC_SUBST(enable_var)

m4_popdef([enable_var])
m4_popdef([concat])
])

dnl vim:set shiftwidth=4 softtabstop=4 expandtab:

dnl -*- Mode: Autoconf; tab-width: 4; indent-tabs-mode: nil; fill-column: 102 -*-
#
# This file is part of the LibreOffice project.
#
# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.
#
# <$1 lowercase variable part - used for variables and configure switches>
# <$2 uppercase variable part - used for configure.ac and make variables>
# <$3 pkg-config query string>
# [$4 if optional, default to: enabled, disabled or fixed (default: fixed)]
# [$5 which is preferred: (fixed-|test-)system or (fixed-)internal or system-if-linux (default: internal)]
# [$6 ignore $with_system_libs: TRUE or blank (default: blank/false)]
#
# $4 fixed: fixed-enabled, as fixed-disabled makes no sense.
# $5 test-system: follows $test_system_$1, ignores $with_system_libs; no configure switch
#
# Used configure.ac variables:
#  - $2_(CFLAGS|LIBS)_internal: must be filled to match the internal build
#  - enable_$1: should normally not be set manually; use test_$1 instead
#  - found_$1: other tests already provided external $2_CFLAGS and $2_LIBS
#  - test_$1: set to no, if the feature shouldn't be tested at all
#  - test_system_$1: set to no, if the system library should not be used
#
# There is currently the AC_SUBST redundancy of
#   (SYSTEM_$2,TRUE) == (,$(filter $2,$(BUILD_TYPE)))
#

m4_define([csm_default_with], [
    if test "${with_system_$1+set}" != set -a "${with_system_libs+set}" = set -a "$3" != TRUE; then
        with_system_$1="$with_system_libs";
    else
        with_system_$1="$2"
    fi
])

m4_define([csm_check_required], [
    m4_ifblank([$2],[m4_fatal([$][$1 ($2) must not be blank and $4])])
    m4_if([$2],[$3],,[m4_fatal([$][$1 ($2) $3 must be $4])])
])

AC_DEFUN([libo_CHECK_SYSTEM_MODULE], [
# validate arguments as possible
csm_check_required([1],[$1],m4_tolower([$1]),[lowercase])
csm_check_required([2],[$2],m4_toupper([$2]),[uppercase])
m4_ifblank([$3],[m4_fatal([$][3 is the pkg-config query and must not be blank])])
m4_if([$6],[TRUE],[],[m4_ifnblank([$6],[m4_fatal([$][6 must be TRUE or blank])])])
m4_if(
    [$4],[enabled],[
        AC_ARG_ENABLE([$1],
            AS_HELP_STRING([--disable-$1],[Disable $1 support.]),
        ,[enable_$1="yes"])
    ],[$4],[disabled],[
        AC_ARG_ENABLE([$1],
            AS_HELP_STRING([--enable-$1],[Enable $1 support.]),
        ,[enable_$1="no"])
    ],[
        m4_if([$4],[fixed],,[m4_ifnblank([$4],
              [m4_fatal([$$4 ($4) must be "enabled", "disabled", "fixed" or empty (=fixed)])])])
        enable_$1="yes";
])
m4_if(
    [$5],[system],[
        AC_ARG_WITH(system-$1,
            AS_HELP_STRING([--without-system-$1],[Build and bundle the internal $1.]),
        ,[csm_default_with($1,yes,$6)])
    ],[$5],[test-system],[
        with_system_$1="$test_system_$1"
    ],[$5],[fixed-system],[
        with_system_$1=yes
    ],[$5],[fixed-internal],[
        with_system_$1=no
    ],[$5],[system-if-linux],[
        AC_ARG_WITH(system-$1,
            AS_HELP_STRING([--with-system-$1],[Use $1 from the operating system.]),
        ,[case "$_os" in
            Linux)
                with_system_nss=yes
            ;;
            *)
                with_system_nss=no
            ;;
          esac])
    ],[
        m4_if([$5],[internal],,[m4_ifnblank([$5],
              [m4_fatal([$$5 ($5) must be "(fixed-|test-)system", "(fixed-)internal", "system-if-linux" or empty (=internal)])])])
        AC_ARG_WITH(system-$1,
            AS_HELP_STRING([--with-system-$1],[Use $1 from the operating system.]),
        ,[csm_default_with($1,no,$6)])
])

AC_MSG_CHECKING([which $1 to use])
if test "$test_$1" != no -a "$found_$1" != yes -a "$enable_$1" != no; then
    ENABLE_$2=TRUE
    if test "$with_system_$1" = yes -a "$test_system_$1" != no; then
        AC_MSG_RESULT([external])
        SYSTEM_$2=TRUE
        PKG_CHECK_MODULES([$2], [$3])
        $2_CFLAGS=$(printf '%s' "${$2_CFLAGS}" | sed -e "s/-I/${ISYSTEM?}/g")
        FilterLibs "${$2_LIBS}"
        $2_LIBS="$filteredlibs"
    else
        AC_MSG_RESULT([internal])
        SYSTEM_$2=
        $2_CFLAGS="${$2_CFLAGS_internal}"
        $2_LIBS="${$2_LIBS_internal}"
        BUILD_TYPE="$BUILD_TYPE $2"
    fi
else
    if test "$found_$1" = yes -a "$enable_$1" != no -a "$with_system_$1" = yes; then
        AC_MSG_RESULT([external])
        ENABLE_$2=TRUE
        SYSTEM_$2=TRUE
    else
        ENABLE_$2=
        SYSTEM_$2=
        $2_CFLAGS=
        $2_LIBS=
        if test "$test_$1" != no -a "$enable_$1" = no; then
            AC_MSG_RESULT([disabled])
        else
            AC_MSG_RESULT([not tested])
        fi
    fi
fi
AC_SUBST([ENABLE_$2])
AC_SUBST([SYSTEM_$2])
AC_SUBST([$2_CFLAGS])
AC_SUBST([$2_LIBS])
])

dnl vim:set shiftwidth=4 softtabstop=4 expandtab:

dnl -*- Mode: Autoconf; tab-width: 4; indent-tabs-mode: nil; fill-column: 102 -*-
#
# This file is part of the LibreOffice project.
#
# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.
#
AC_DEFUN([libo_FUZZ_ARG_WITH], [
    AC_ARG_WITH([$1],
        [$2],
        [$3],
        if test "$enable_fuzz_options" = yes; then
            if test `expr $RANDOM % 2` = 1; then
                m4_translit([with-$1], [-+.], [___])=yes
            else
                m4_translit([with-$1], [-+.], [___])=no
            fi
            AC_MSG_NOTICE([Randomly set --with-$1=$m4_translit([with-$1], [-+.], [___])])
            libo_fuzzed_[]m4_translit([with-$1], [-+.], [___])=yes
            libo_fuzz_list="$libo_fuzz_list --with-$1="'$m4_translit([with-$1], [-+.], [___])'
        fi
        [$4]
        )
])

AC_DEFUN([libo_FUZZ_ARG_ENABLE], [
    AC_ARG_ENABLE([$1],
        [$2],
        [$3],
        if test "$enable_fuzz_options" = yes; then
            if test `expr $RANDOM % 2` = 1; then
                m4_translit([enable-$1], [-+.], [___])=yes
            else
                m4_translit([enable-$1], [-+.], [___])=no
            fi
            AC_MSG_NOTICE([Randomly set --enable-$1=$m4_translit([enable-$1], [-+.], [___])])
            libo_fuzzed_[]m4_translit([enable-$1], [-+.], [___])=yes
            libo_fuzz_list="$libo_fuzz_list --enable-$1="'$m4_translit([enable-$1], [-+.], [___])'
        fi
        [$4])
])

AC_DEFUN([libo_FUZZ_SUMMARY], [
    if test -n "$libo_fuzz_list"; then
        tmps=`eval echo $libo_fuzz_list`
        AC_MSG_NOTICE([Summary of fuzzing: $tmps])
    fi
])

dnl vim:set shiftwidth=4 softtabstop=4 expandtab:

dnl -*- Mode: Autoconf; tab-width: 4; indent-tabs-mode: nil; fill-column: 102 -*-
#
# This file is part of the LibreOffice project.
#
# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.
#

m4_define([_libo_define_pkg_version], [
    save_IFS="$IFS"
    IFS=.
    echo "$ver" | while read major minor micro; do
        AC_DEFINE_UNQUOTED([$1_VERSION_MAJOR], [$major])
        AC_DEFINE_UNQUOTED([$1_VERSION_MINOR], [$minor])
        AC_DEFINE_UNQUOTED([$1_VERSION_MICRO], [$micro])
    done
    IFS="$save_IFS"
])

m4_define([_libo_define_pkg_version_direct], [
    AC_DEFINE([$1_VERSION_MAJOR], [$2])
    AC_DEFINE([$1_VERSION_MINOR], [$3])
    AC_DEFINE([$1_VERSION_MICRO], [$4])
])

# libo_PKG_VERSION(VARIABLE-STEM, MODULE, BUNDLED-VERSION)
AC_DEFUN([libo_PKG_VERSION], [
    AS_IF([test -n "$SYSTEM_$1"], [
        AC_REQUIRE([PKG_PROG_PKG_CONFIG])
        AC_MSG_CHECKING([for $1 version])
        AS_IF([test -n "$PKG_CONFIG"], [
            ver=`$PKG_CONFIG --modversion "$2"`
            AS_IF([test -n "$ver"], [
                AC_MSG_RESULT([$ver])
                _libo_define_pkg_version([$1], [$ver])
            ], [
                AC_MSG_ERROR([not found])
            ])
        ], [
            AC_MSG_ERROR([not found])
        ])
    ], [
        _libo_define_pkg_version_direct([$1], m4_translit([$3], [.], [,]))
    ])
])

dnl vim:set shiftwidth=4 softtabstop=4 expandtab: