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# generated automatically by aclocal 1.15.1 -*- Autoconf -*-
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# Copyright (C) 1996-2017 Free Software Foundation, Inc.
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# 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.

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m4_ifndef([AC_CONFIG_MACRO_DIRS], [m4_defun([_AM_CONFIG_MACRO_DIRS], [])m4_defun([AC_CONFIG_MACRO_DIRS], [_AM_CONFIG_MACRO_DIRS($@)])])
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m4_ifndef([AC_AUTOCONF_VERSION],
  [m4_copy([m4_PACKAGE_VERSION], [AC_AUTOCONF_VERSION])])dnl
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m4_if(m4_defn([AC_AUTOCONF_VERSION]), [2.69],,
[m4_warning([this file was generated for autoconf 2.69.
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You have another version of autoconf.  It may work, but is not guaranteed to.
If you have problems, you may need to regenerate the build system entirely.
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To do so, use the procedure documented by the package, typically 'autoreconf'.])])
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# pkg.m4 - Macros to locate and utilise pkg-config.   -*- Autoconf -*-
# serial 11 (pkg-config-0.29.1)

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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],
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[m4_define([PKG_MACROS_VERSION], [0.29.1])
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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.
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AC_DEFUN([PKG_PROG_PKG_CONFIG],
[m4_pattern_forbid([^_?PKG_[A-Z_]+$])
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m4_pattern_allow([^PKG_CONFIG(_(PATH|LIBDIR|SYSROOT_DIR|ALLOW_SYSTEM_(CFLAGS|LIBS)))?$])
m4_pattern_allow([^PKG_CONFIG_(DISABLE_UNINSTALLED|TOP_BUILD_DIR|DEBUG_SPEW)$])
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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 $_pkg_min_version; then
		AC_MSG_RESULT([yes])
	else
		AC_MSG_RESULT([no])
		PKG_CONFIG=""
	fi
fi[]dnl
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])dnl PKG_PROG_PKG_CONFIG
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dnl PKG_CHECK_EXISTS(MODULES, [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
dnl -------------------------------------------------------------------
dnl Since: 0.18
dnl
dnl Check to see whether a particular set of modules exists. Similar to
dnl PKG_CHECK_MODULES(), but does not set variables or print errors.
dnl
dnl Please remember that m4 expands AC_REQUIRE([PKG_PROG_PKG_CONFIG])
dnl only at the first occurence in configure.ac, so if the first place
dnl it's called might be skipped (such as if it is within an "if", you
dnl have to call PKG_CHECK_EXISTS manually
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AC_DEFUN([PKG_CHECK_EXISTS],
[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
if test -n "$PKG_CONFIG" && \
    AC_RUN_LOG([$PKG_CONFIG --exists --print-errors "$1"]); then
  m4_default([$2], [:])
m4_ifvaln([$3], [else
  $3])dnl
fi])

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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.
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m4_define([_PKG_CONFIG],
[if test -n "$$1"; then
    pkg_cv_[]$1="$$1"
 elif test -n "$PKG_CONFIG"; then
    PKG_CHECK_EXISTS([$3],
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                     [pkg_cv_[]$1=`$PKG_CONFIG --[]$2 "$3" 2>/dev/null`
		      test "x$?" != "x0" && pkg_failed=yes ],
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		     [pkg_failed=yes])
 else
    pkg_failed=untried
fi[]dnl
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])dnl _PKG_CONFIG
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dnl _PKG_SHORT_ERRORS_SUPPORTED
dnl ---------------------------
dnl Internal check to see if pkg-config supports short errors.
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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
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])dnl _PKG_SHORT_ERRORS_SUPPORTED
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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
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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
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	        $1[]_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "$2" 2>&1`
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        else 
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	        $1[]_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "$2" 2>&1`
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        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.

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_PKG_TEXT])[]dnl
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        ])
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

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To get pkg-config, see <http://pkg-config.freedesktop.org/>.])[]dnl
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        ])
else
	$1[]_CFLAGS=$pkg_cv_[]$1[]_CFLAGS
	$1[]_LIBS=$pkg_cv_[]$1[]_LIBS
        AC_MSG_RESULT([yes])
	$3
fi[]dnl
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])dnl PKG_CHECK_MODULES
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dnl PKG_CHECK_MODULES_STATIC(VARIABLE-PREFIX, MODULES, [ACTION-IF-FOUND],
dnl   [ACTION-IF-NOT-FOUND])
dnl ---------------------------------------------------------------------
dnl Since: 0.29
dnl
dnl Checks for existence of MODULES and gathers its build flags with
dnl static libraries enabled. Sets VARIABLE-PREFIX_CFLAGS from --cflags
dnl and VARIABLE-PREFIX_LIBS from --libs.
dnl
dnl Note that if there is a possibility the first call to
dnl PKG_CHECK_MODULES_STATIC might not happen, you should be sure to
dnl include an explicit call to PKG_PROG_PKG_CONFIG in your
dnl configure.ac.
AC_DEFUN([PKG_CHECK_MODULES_STATIC],
[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
_save_PKG_CONFIG=$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.
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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])
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])dnl PKG_INSTALLDIR
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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.
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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])
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])dnl PKG_NOARCH_INSTALLDIR
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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.
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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
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])dnl PKG_CHECK_VAR
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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

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# Copyright (C) 2002-2017 Free Software Foundation, Inc.
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#
# 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.
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# AM_AUTOMAKE_VERSION(VERSION)
# ----------------------------
# Automake X.Y traces this macro to ensure aclocal.m4 has been
# generated from the m4 files accompanying Automake X.Y.
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# (This private macro should not be called outside this file.)
AC_DEFUN([AM_AUTOMAKE_VERSION],
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[am__api_version='1.15'
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dnl Some users find AM_AUTOMAKE_VERSION and mistake it for a way to
dnl require some minimum version.  Point them to the right macro.
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m4_if([$1], [1.15.1], [],
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      [AC_FATAL([Do not call $0, use AM_INIT_AUTOMAKE([$1]).])])dnl
])

# _AM_AUTOCONF_VERSION(VERSION)
# -----------------------------
# aclocal traces this macro to find the Autoconf version.
# This is a private macro too.  Using m4_define simplifies
# the logic in aclocal, which can simply ignore this definition.
m4_define([_AM_AUTOCONF_VERSION], [])
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# AM_SET_CURRENT_AUTOMAKE_VERSION
# -------------------------------
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# Call AM_AUTOMAKE_VERSION and AM_AUTOMAKE_VERSION so they can be traced.
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# This function is AC_REQUIREd by AM_INIT_AUTOMAKE.
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AC_DEFUN([AM_SET_CURRENT_AUTOMAKE_VERSION],
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[AM_AUTOMAKE_VERSION([1.15.1])dnl
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m4_ifndef([AC_AUTOCONF_VERSION],
  [m4_copy([m4_PACKAGE_VERSION], [AC_AUTOCONF_VERSION])])dnl
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_AM_AUTOCONF_VERSION(m4_defn([AC_AUTOCONF_VERSION]))])
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# AM_AUX_DIR_EXPAND                                         -*- Autoconf -*-
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# Copyright (C) 2001-2017 Free Software Foundation, Inc.
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#
# 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.
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# For projects using AC_CONFIG_AUX_DIR([foo]), Autoconf sets
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# $ac_aux_dir to '$srcdir/foo'.  In other projects, it is set to
# '$srcdir', '$srcdir/..', or '$srcdir/../..'.
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#
# Of course, Automake must honor this variable whenever it calls a
# tool from the auxiliary directory.  The problem is that $srcdir (and
# therefore $ac_aux_dir as well) can be either absolute or relative,
# depending on how configure is run.  This is pretty annoying, since
# it makes $ac_aux_dir quite unusable in subdirectories: in the top
# source directory, any form will work fine, but in subdirectories a
# relative path needs to be adjusted first.
#
# $ac_aux_dir/missing
#    fails when called from a subdirectory if $ac_aux_dir is relative
# $top_srcdir/$ac_aux_dir/missing
#    fails if $ac_aux_dir is absolute,
#    fails when called from a subdirectory in a VPATH build with
#          a relative $ac_aux_dir
#
# The reason of the latter failure is that $top_srcdir and $ac_aux_dir
# are both prefixed by $srcdir.  In an in-source build this is usually
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# harmless because $srcdir is '.', but things will broke when you
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# start a VPATH build or use an absolute $srcdir.
#
# So we could use something similar to $top_srcdir/$ac_aux_dir/missing,
# iff we strip the leading $srcdir from $ac_aux_dir.  That would be:
#   am_aux_dir='\$(top_srcdir)/'`expr "$ac_aux_dir" : "$srcdir//*\(.*\)"`
# and then we would define $MISSING as
#   MISSING="\${SHELL} $am_aux_dir/missing"
# This will work as long as MISSING is not called from configure, because
# unfortunately $(top_srcdir) has no meaning in configure.
# However there are other variables, like CC, which are often used in
# configure, and could therefore not use this "fixed" $ac_aux_dir.
#
# Another solution, used here, is to always expand $ac_aux_dir to an
# absolute PATH.  The drawback is that using absolute paths prevent a
# configured tree to be moved without reconfiguration.

AC_DEFUN([AM_AUX_DIR_EXPAND],
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[AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT])dnl
# Expand $ac_aux_dir to an absolute path.
am_aux_dir=`cd "$ac_aux_dir" && pwd`
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])
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# AM_CONDITIONAL                                            -*- Autoconf -*-
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# Copyright (C) 1997-2017 Free Software Foundation, Inc.
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#
# 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.
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# AM_CONDITIONAL(NAME, SHELL-CONDITION)
# -------------------------------------
# Define a conditional.
AC_DEFUN([AM_CONDITIONAL],
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[AC_PREREQ([2.52])dnl
 m4_if([$1], [TRUE],  [AC_FATAL([$0: invalid condition: $1])],
       [$1], [FALSE], [AC_FATAL([$0: invalid condition: $1])])dnl
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AC_SUBST([$1_TRUE])dnl
AC_SUBST([$1_FALSE])dnl
_AM_SUBST_NOTMAKE([$1_TRUE])dnl
_AM_SUBST_NOTMAKE([$1_FALSE])dnl
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m4_define([_AM_COND_VALUE_$1], [$2])dnl
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if $2; then
  $1_TRUE=
  $1_FALSE='#'
else
  $1_TRUE='#'
  $1_FALSE=
fi
AC_CONFIG_COMMANDS_PRE(
[if test -z "${$1_TRUE}" && test -z "${$1_FALSE}"; then
  AC_MSG_ERROR([[conditional "$1" was never defined.
Usually this means the macro was only invoked conditionally.]])
fi])])
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# Copyright (C) 1999-2017 Free Software Foundation, Inc.
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#
# 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.
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# There are a few dirty hacks below to avoid letting 'AC_PROG_CC' be
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# written in clear, in which case automake, when reading aclocal.m4,
# will think it sees a *use*, and therefore will trigger all it's
# C support machinery.  Also note that it means that autoscan, seeing
# CC etc. in the Makefile, will ask for an AC_PROG_CC use...
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# _AM_DEPENDENCIES(NAME)
# ----------------------
# See how the compiler implements dependency checking.
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# NAME is "CC", "CXX", "OBJC", "OBJCXX", "UPC", or "GJC".
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# We try a few techniques and use that to set a single cache variable.
#
# We don't AC_REQUIRE the corresponding AC_PROG_CC since the latter was
# modified to invoke _AM_DEPENDENCIES(CC); we would have a circular
# dependency, and given that the user is not expected to run this macro,
# just rely on AC_PROG_CC.
AC_DEFUN([_AM_DEPENDENCIES],
[AC_REQUIRE([AM_SET_DEPDIR])dnl
AC_REQUIRE([AM_OUTPUT_DEPENDENCY_COMMANDS])dnl
AC_REQUIRE([AM_MAKE_INCLUDE])dnl
AC_REQUIRE([AM_DEP_TRACK])dnl

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m4_if([$1], [CC],   [depcc="$CC"   am_compiler_list=],
      [$1], [CXX],  [depcc="$CXX"  am_compiler_list=],
      [$1], [OBJC], [depcc="$OBJC" am_compiler_list='gcc3 gcc'],
      [$1], [OBJCXX], [depcc="$OBJCXX" am_compiler_list='gcc3 gcc'],
      [$1], [UPC],  [depcc="$UPC"  am_compiler_list=],
      [$1], [GCJ],  [depcc="$GCJ"  am_compiler_list='gcc3 gcc'],
                    [depcc="$$1"   am_compiler_list=])
525 526 527 528 529 530 531

AC_CACHE_CHECK([dependency style of $depcc],
               [am_cv_$1_dependencies_compiler_type],
[if test -z "$AMDEP_TRUE" && test -f "$am_depcomp"; then
  # We make a subdir and do the tests there.  Otherwise we can end up
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532 533
  # making a dummy file named 'D' -- because '-MD' means "put the output
  # in D".
534
  rm -rf conftest.dir
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  mkdir conftest.dir
  # Copy depcomp to subdir because otherwise we won't find it if we're
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  cp "$am_depcomp" conftest.dir
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552 553 554 555 556 557 558 559 560 561
  am__universal=false
  m4_case([$1], [CC],
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    [CXX],
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  for depmode in $am_compiler_list; do
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    : > sub/conftest.c
    for i in 1 2 3 4 5 6; do
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573 574 575
      # Using ": > sub/conftst$i.h" creates only sub/conftst1.h with
      # Solaris 10 /bin/sh.
      echo '/* dummy */' > sub/conftst$i.h
576 577 578
    done
    echo "${am__include} ${am__quote}sub/conftest.Po${am__quote}" > confmf

579
    # We check with '-c' and '-o' for the sake of the "dashmstdout"
580
    # mode.  It turns out that the SunPro C++ compiler does not properly
581 582
    # handle '-M -o', and we need to detect this.  Also, some Intel
    # versions had trouble with output in subdirs.
583 584
    am__obj=sub/conftest.${OBJEXT-o}
    am__minus_obj="-o $am__obj"
585
    case $depmode in
586 587 588 589
    gcc)
      # This depmode causes a compiler race in universal mode.
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590
    nosideeffect)
591 592
      # After this tag, mechanisms are not by side-effect, so they'll
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593 594 595 596 597 598
      if test "x$enable_dependency_tracking" = xyes; then
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      fi
      ;;
599
    msvc7 | msvc7msys | msvisualcpp | msvcmsys)
600
      # This compiler won't grok '-c -o', but also, the minuso test has
601 602 603 604 605
      # not run yet.  These depmodes are late enough in the game, and
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      am__obj=conftest.${OBJEXT-o}
      am__minus_obj=
      ;;
606 607 608
    none) break ;;
    esac
    if depmode=$depmode \
609
       source=sub/conftest.c object=$am__obj \
610
       depfile=sub/conftest.Po tmpdepfile=sub/conftest.TPo \
611
       $SHELL ./depcomp $depcc -c $am__minus_obj sub/conftest.c \
612
         >/dev/null 2>conftest.err &&
613
       grep sub/conftst1.h sub/conftest.Po > /dev/null 2>&1 &&
614
       grep sub/conftst6.h sub/conftest.Po > /dev/null 2>&1 &&
615
       grep $am__obj sub/conftest.Po > /dev/null 2>&1 &&
616 617 618 619 620 621 622 623 624 625 626 627
       ${MAKE-make} -s -f confmf > /dev/null 2>&1; then
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        am_cv_$1_dependencies_compiler_type=$depmode
        break
628 629 630
      fi
    fi
  done
631 632 633

  cd ..
  rm -rf conftest.dir
634
else
635
  am_cv_$1_dependencies_compiler_type=none
636 637
fi
])
638 639 640 641 642
AC_SUBST([$1DEPMODE], [depmode=$am_cv_$1_dependencies_compiler_type])
AM_CONDITIONAL([am__fastdep$1], [
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])
643 644


645 646 647
# AM_SET_DEPDIR
# -------------
# Choose a directory name for dependency files.
648
# This macro is AC_REQUIREd in _AM_DEPENDENCIES.
649 650 651
AC_DEFUN([AM_SET_DEPDIR],
[AC_REQUIRE([AM_SET_LEADING_DOT])dnl
AC_SUBST([DEPDIR], ["${am__leading_dot}deps"])dnl
652 653 654
])


655 656 657
# AM_DEP_TRACK
# ------------
AC_DEFUN([AM_DEP_TRACK],
658 659 660 661 662 663 664
[AC_ARG_ENABLE([dependency-tracking], [dnl
AS_HELP_STRING(
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AS_HELP_STRING(
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665 666 667
if test "x$enable_dependency_tracking" != xno; then
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  AMDEPBACKSLASH='\'
668
  am__nodep='_no'
669
fi
670
AM_CONDITIONAL([AMDEP], [test "x$enable_dependency_tracking" != xno])
671 672
AC_SUBST([AMDEPBACKSLASH])dnl
_AM_SUBST_NOTMAKE([AMDEPBACKSLASH])dnl
673 674
AC_SUBST([am__nodep])dnl
_AM_SUBST_NOTMAKE([am__nodep])dnl
675 676
])

677
# Generate code to set up dependency tracking.              -*- Autoconf -*-
678

679
# Copyright (C) 1999-2017 Free Software Foundation, Inc.
680 681 682 683
#
# 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.
684 685 686 687 688


# _AM_OUTPUT_DEPENDENCY_COMMANDS
# ------------------------------
AC_DEFUN([_AM_OUTPUT_DEPENDENCY_COMMANDS],
689
[{
690
  # Older Autoconf quotes --file arguments for eval, but not when files
691 692 693 694 695 696 697 698 699 700 701 702
  # are listed without --file.  Let's play safe and only enable the eval
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703
    # We used to match only the files named 'Makefile.in', but
704 705 706 707 708 709 710 711 712 713 714
    # some people rename them; so instead we look at the file content.
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    # Extract the definition of DEPDIR, am__include, and am__quote
715
    # from the Makefile without running 'make'.
716 717 718
    DEPDIR=`sed -n 's/^DEPDIR = //p' < "$mf"`
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    am__include=`sed -n 's/^am__include = //p' < "$mf"`
719
    test -z "$am__include" && continue
720 721 722 723 724 725 726
    am__quote=`sed -n 's/^am__quote = //p' < "$mf"`
    # Find all dependency output files, they are included files with
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    for file in `sed -n "
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727
	 sed -e 's/\$(DEPDIR)/'"$DEPDIR"'/g'`; do
728 729 730 731 732 733 734
      # Make sure the directory exists.
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      fdir=`AS_DIRNAME(["$file"])`
      AS_MKDIR_P([$dirpart/$fdir])
      # echo "creating $dirpart/$file"
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735
  done
736
}
737 738 739 740 741 742 743 744
])# _AM_OUTPUT_DEPENDENCY_COMMANDS


# AM_OUTPUT_DEPENDENCY_COMMANDS
# -----------------------------
# This macro should only be invoked once -- use via AC_REQUIRE.
#
# This code is only required when automatic dependency tracking
745
# is enabled.  FIXME.  This creates each '.P' file that we will
746 747 748 749 750
# need in order to bootstrap the dependency handling code.
AC_DEFUN([AM_OUTPUT_DEPENDENCY_COMMANDS],
[AC_CONFIG_COMMANDS([depfiles],
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751 752
])

753
# Do all the work for Automake.                             -*- Autoconf -*-
754

755
# Copyright (C) 1996-2017 Free Software Foundation, Inc.
756 757 758 759
#
# 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.
760

761 762
# This macro actually does too much.  Some checks are only needed if
# your package does certain things.  But this isn't really a big deal.
763

764 765 766 767 768 769
dnl Redefine AC_PROG_CC to automatically invoke _AM_PROG_CC_C_O.
m4_define([AC_PROG_CC],
m4_defn([AC_PROG_CC])
[_AM_PROG_CC_C_O
])

770 771 772 773 774 775 776 777 778 779 780 781
# AM_INIT_AUTOMAKE(PACKAGE, VERSION, [NO-DEFINE])
# AM_INIT_AUTOMAKE([OPTIONS])
# -----------------------------------------------
# The call with PACKAGE and VERSION arguments is the old style
# call (pre autoconf-2.50), which is being phased out.  PACKAGE
# and VERSION should now be passed to AC_INIT and removed from
# the call to AM_INIT_AUTOMAKE.
# We support both call styles for the transition.  After
# the next Automake release, Autoconf can make the AC_INIT
# arguments mandatory, and then we can depend on a new Autoconf
# release and drop the old call support.
AC_DEFUN([AM_INIT_AUTOMAKE],
782
[AC_PREREQ([2.65])dnl
783 784 785 786 787
dnl Autoconf wants to disallow AM_ names.  We explicitly allow
dnl the ones we care about.
m4_pattern_allow([^AM_[A-Z]+FLAGS$])dnl
AC_REQUIRE([AM_SET_CURRENT_AUTOMAKE_VERSION])dnl
AC_REQUIRE([AC_PROG_INSTALL])dnl
788 789 790 791 792 793 794 795
if test "`cd $srcdir && pwd`" != "`pwd`"; then
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  # test to see if srcdir already configured
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    AC_MSG_ERROR([source directory already configured; run "make distclean" there first])
  fi
796
fi
797

798 799 800 801
# test whether we have cygpath
if test -z "$CYGPATH_W"; then
  if (cygpath --version) >/dev/null 2>/dev/null; then
    CYGPATH_W='cygpath -w'
802
  else
803
    CYGPATH_W=echo
804
  fi
805 806 807 808 809 810
fi
AC_SUBST([CYGPATH_W])

# Define the identity of the package.
dnl Distinguish between old-style and new-style calls.
m4_ifval([$2],
811
[AC_DIAGNOSE([obsolete],
812
             [$0: two- and three-arguments forms are deprecated.])
813
m4_ifval([$3], [_AM_SET_OPTION([no-define])])dnl
814 815 816
 AC_SUBST([PACKAGE], [$1])dnl
 AC_SUBST([VERSION], [$2])],
[_AM_SET_OPTIONS([$1])dnl
817
dnl Diagnose old-style AC_INIT with new-style AM_AUTOMAKE_INIT.
818 819 820
m4_if(
  m4_ifdef([AC_PACKAGE_NAME], [ok]):m4_ifdef([AC_PACKAGE_VERSION], [ok]),
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821
  [m4_fatal([AC_INIT should be called with package and version arguments])])dnl
822 823 824 825
 AC_SUBST([PACKAGE], ['AC_PACKAGE_TARNAME'])dnl
 AC_SUBST([VERSION], ['AC_PACKAGE_VERSION'])])dnl

_AM_IF_OPTION([no-define],,
826 827
[AC_DEFINE_UNQUOTED([PACKAGE], ["$PACKAGE"], [Name of package])
 AC_DEFINE_UNQUOTED([VERSION], ["$VERSION"], [Version number of package])])dnl
828 829 830 831

# Some tools Automake needs.
AC_REQUIRE([AM_SANITY_CHECK])dnl
AC_REQUIRE([AC_ARG_PROGRAM])dnl
832 833 834 835 836
AM_MISSING_PROG([ACLOCAL], [aclocal-${am__api_version}])
AM_MISSING_PROG([AUTOCONF], [autoconf])
AM_MISSING_PROG([AUTOMAKE], [automake-${am__api_version}])
AM_MISSING_PROG([AUTOHEADER], [autoheader])
AM_MISSING_PROG([MAKEINFO], [makeinfo])
837 838
AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
AC_REQUIRE([AM_PROG_INSTALL_STRIP])dnl
839 840 841 842 843 844
AC_REQUIRE([AC_PROG_MKDIR_P])dnl
# For better backward compatibility.  To be removed once Automake 1.9.x
# dies out for good.  For more background, see:
# <http://lists.gnu.org/archive/html/automake/2012-07/msg00001.html>
# <http://lists.gnu.org/archive/html/automake/2012-07/msg00014.html>
AC_SUBST([mkdir_p], ['$(MKDIR_P)'])
845 846
# We need awk for the "check" target (and possibly the TAP driver).  The
# system "awk" is bad on some platforms.
847 848 849 850
AC_REQUIRE([AC_PROG_AWK])dnl
AC_REQUIRE([AC_PROG_MAKE_SET])dnl
AC_REQUIRE([AM_SET_LEADING_DOT])dnl
_AM_IF_OPTION([tar-ustar], [_AM_PROG_TAR([ustar])],
851 852
	      [_AM_IF_OPTION([tar-pax], [_AM_PROG_TAR([pax])],
			     [_AM_PROG_TAR([v7])])])
853 854
_AM_IF_OPTION([no-dependencies],,
[AC_PROVIDE_IFELSE([AC_PROG_CC],
855 856 857
		  [_AM_DEPENDENCIES([CC])],
		  [m4_define([AC_PROG_CC],
			     m4_defn([AC_PROG_CC])[_AM_DEPENDENCIES([CC])])])dnl
858
AC_PROVIDE_IFELSE([AC_PROG_CXX],
859 860 861
		  [_AM_DEPENDENCIES([CXX])],
		  [m4_define([AC_PROG_CXX],
			     m4_defn([AC_PROG_CXX])[_AM_DEPENDENCIES([CXX])])])dnl
862
AC_PROVIDE_IFELSE([AC_PROG_OBJC],
863 864 865
		  [_AM_DEPENDENCIES([OBJC])],
		  [m4_define([AC_PROG_OBJC],
			     m4_defn([AC_PROG_OBJC])[_AM_DEPENDENCIES([OBJC])])])dnl
866
AC_PROVIDE_IFELSE([AC_PROG_OBJCXX],
867 868
		  [_AM_DEPENDENCIES([OBJCXX])],
		  [m4_define([AC_PROG_OBJCXX],
869
			     m4_defn([AC_PROG_OBJCXX])[_AM_DEPENDENCIES([OBJCXX])])])dnl
870
])
871 872 873 874
AC_REQUIRE([AM_SILENT_RULES])dnl
dnl The testsuite driver may need to know about EXEEXT, so add the
dnl 'am__EXEEXT' conditional if _AM_COMPILER_EXEEXT was seen.  This
dnl macro is hooked onto _AC_COMPILER_EXEEXT early, see below.
875 876 877
AC_CONFIG_COMMANDS_PRE(dnl
[m4_provide_if([_AM_COMPILER_EXEEXT],
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878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922

# POSIX will say in a future version that running "rm -f" with no argument
# is OK; and we want to be able to make that assumption in our Makefile
# recipes.  So use an aggressive probe to check that the usage we want is
# actually supported "in the wild" to an acceptable degree.
# See automake bug#10828.
# To make any issue more visible, cause the running configure to be aborted
# by default if the 'rm' program in use doesn't match our expectations; the
# user can still override this though.
if rm -f && rm -fr && rm -rf; then : OK; else
  cat >&2 <<'END'
Oops!

Your 'rm' program seems unable to run without file operands specified
on the command line, even when the '-f' option is present.  This is contrary
to the behaviour of most rm programs out there, and not conforming with
the upcoming POSIX standard: <http://austingroupbugs.net/view.php?id=542>

Please tell bug-automake@gnu.org about your system, including the value
of your $PATH and any error possibly output before this message.  This
can help us improve future automake versions.

END
  if test x"$ACCEPT_INFERIOR_RM_PROGRAM" = x"yes"; then
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    echo 'ACCEPT_INFERIOR_RM_PROGRAM variable to "yes"' >&2
    echo >&2
  else
    cat >&2 <<'END'
Aborting the configuration process, to ensure you take notice of the issue.

You can download and install GNU coreutils to get an 'rm' implementation
that behaves properly: <http://www.gnu.org/software/coreutils/>.

If you want to complete the configuration process using your problematic
'rm' anyway, export the environment variable ACCEPT_INFERIOR_RM_PROGRAM
to "yes", and re-run configure.

END
    AC_MSG_ERROR([Your 'rm' program is bad, sorry.])
  fi
fi
dnl The trailing newline in this macro's definition is deliberate, for
dnl backward compatibility and to allow trailing 'dnl'-style comments
dnl after the AM_INIT_AUTOMAKE invocation. See automake bug#16841.
923
])
924

925
dnl Hook into '_AC_COMPILER_EXEEXT' early to learn its expansion.  Do not
926 927 928 929 930
dnl add the conditional right here, as _AC_COMPILER_EXEEXT may be further
dnl mangled by Autoconf and run in a shell conditional statement.
m4_define([_AC_COMPILER_EXEEXT],
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931 932 933 934 935 936 937 938 939
# When config.status generates a header, we must update the stamp-h file.
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# Autoconf calls _AC_AM_CONFIG_HEADER_HOOK (when defined) in the
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AC_DEFUN([_AC_AM_CONFIG_HEADER_HOOK],
[# Compute $1's index in $config_headers.
940
_am_arg=$1
941 942 943
_am_stamp_count=1
for _am_header in $config_headers :; do
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944
    $_am_arg | $_am_arg:* )
945 946 947
      break ;;
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948
  esac
949
done
950
echo "timestamp for $_am_arg" >`AS_DIRNAME(["$_am_arg"])`/stamp-h[]$_am_stamp_count])
951

952
# Copyright (C) 2001-2017 Free Software Foundation, Inc.
953 954 955 956 957
#
# 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.

958 959 960 961 962
# AM_PROG_INSTALL_SH
# ------------------
# Define $install_sh.
AC_DEFUN([AM_PROG_INSTALL_SH],
[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
963
if test x"${install_sh+set}" != xset; then
964 965 966 967 968 969 970
  case $am_aux_dir in
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    install_sh="\${SHELL} $am_aux_dir/install-sh"
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fi
971
AC_SUBST([install_sh])])
972

973
# Copyright (C) 2003-2017 Free Software Foundation, Inc.
974 975 976 977
#
# 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.
978 979 980 981 982 983 984 985

# Check whether the underlying file-system supports filenames
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AC_DEFUN([AM_SET_LEADING_DOT],
[rm -rf .tst 2>/dev/null
mkdir .tst 2>/dev/null
if test -d .tst; then
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986
else
987 988 989 990
  am__leading_dot=_
fi
rmdir .tst 2>/dev/null
AC_SUBST([am__leading_dot])])
991

992
# Check to see how 'make' treats includes.	            -*- Autoconf -*-
993

994
# Copyright (C) 2001-2017 Free Software Foundation, Inc.
995 996 997 998
#
# 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.
999 1000 1001 1002 1003 1004 1005 1006

# AM_MAKE_INCLUDE()
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# Check to see how make treats includes.
AC_DEFUN([AM_MAKE_INCLUDE],
[am_make=${MAKE-make}
cat > confinc << 'END'
am__doit:
1007
	@echo this is the am__doit target
1008 1009 1010 1011 1012 1013 1014 1015 1016
.PHONY: am__doit
END
# If we don't find an include directive, just comment out the code.
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am__include="#"
am__quote=
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# First try GNU make style include.
echo "include confinc" > confmf
1017
# Ignore all kinds of additional output from 'make'.
1018 1019 1020 1021 1022 1023 1024
case `$am_make -s -f confmf 2> /dev/null` in #(
*the\ am__doit\ target*)
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esac
1025 1026 1027
# Now try BSD make style include.
if test "$am__include" = "#"; then
   echo '.include "confinc"' > confmf
1028 1029 1030 1031 1032 1033 1034
   case `$am_make -s -f confmf 2> /dev/null` in #(
   *the\ am__doit\ target*)
     am__include=.include
     am__quote="\""
     _am_result=BSD
     ;;
   esac
1035 1036 1037 1038 1039
fi
AC_SUBST([am__include])
AC_SUBST([am__quote])
AC_MSG_RESULT([$_am_result])
rm -f confinc confmf
1040 1041
])

1042
# Fake the existence of programs that GNU maintainers use.  -*- Autoconf -*-
1043

1044
# Copyright (C) 1997-2017 Free Software Foundation, Inc.
1045 1046 1047 1048
#
# 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.
1049 1050 1051 1052 1053 1054 1055

# AM_MISSING_PROG(NAME, PROGRAM)
# ------------------------------
AC_DEFUN([AM_MISSING_PROG],
[AC_REQUIRE([AM_MISSING_HAS_RUN])
$1=${$1-"${am_missing_run}$2"}
AC_SUBST($1)])
1056

1057 1058
# AM_MISSING_HAS_RUN
# ------------------
1059 1060
# Define MISSING if not defined so far and test if it is modern enough.
# If it is, set am_missing_run to use it, otherwise, to nothing.
1061 1062
AC_DEFUN([AM_MISSING_HAS_RUN],
[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
1063
AC_REQUIRE_AUX_FILE([missing])dnl
1064 1065 1066 1067 1068 1069 1070 1071
if test x"${MISSING+set}" != xset; then
  case $am_aux_dir in
  *\ * | *\	*)
    MISSING="\${SHELL} \"$am_aux_dir/missing\"" ;;
  *)
    MISSING="\${SHELL} $am_aux_dir/missing" ;;
  esac
fi
1072
# Use eval to expand $SHELL
1073 1074
if eval "$MISSING --is-lightweight"; then
  am_missing_run="$MISSING "
1075 1076
else
  am_missing_run=
1077
  AC_MSG_WARN(['missing' script is too old or missing])
1078
fi
1079 1080
])

1081
# Copyright (C) 2003-2017 Free Software Foundation, Inc.
1082 1083 1084 1085 1086
#
# 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.

1087 1088
# AM_PROG_MKDIR_P
# ---------------
1089
# Check for 'mkdir -p'.
1090
AC_DEFUN([AM_PROG_MKDIR_P],
1091 1092
[AC_PREREQ([2.60])dnl
AC_REQUIRE([AC_PROG_MKDIR_P])dnl
1093 1094
dnl FIXME we are no longer going to remove this! adjust warning
dnl FIXME message accordingly.
1095 1096 1097 1098
AC_DIAGNOSE([obsolete],
[$0: this macro is deprecated, and will soon be removed.
You should use the Autoconf-provided 'AC][_PROG_MKDIR_P' macro instead,
and use '$(MKDIR_P)' instead of '$(mkdir_p)'in your Makefile.am files.])
1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111
dnl Automake 1.8 to 1.9.6 used to define mkdir_p.  We now use MKDIR_P,
dnl while keeping a definition of mkdir_p for backward compatibility.
dnl @MKDIR_P@ is magic: AC_OUTPUT adjusts its value for each Makefile.
dnl However we cannot define mkdir_p as $(MKDIR_P) for the sake of
dnl Makefile.ins that do not define MKDIR_P, so we do our own
dnl adjustment using top_builddir (which is defined more often than
dnl MKDIR_P).
AC_SUBST([mkdir_p], ["$MKDIR_P"])dnl
case $mkdir_p in
  [[\\/$]]* | ?:[[\\/]]*) ;;
  */*) mkdir_p="\$(top_builddir)/$mkdir_p" ;;
esac
])
1112

1113
# Helper functions for option handling.                     -*- Autoconf -*-
1114

1115
# Copyright (C) 2001-2017 Free Software Foundation, Inc.
1116 1117 1118 1119
#
# 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.
1120

1121 1122 1123 1124
# _AM_MANGLE_OPTION(NAME)
# -----------------------
AC_DEFUN([_AM_MANGLE_OPTION],
[[_AM_OPTION_]m4_bpatsubst($1, [[^a-zA-Z0-9_]], [_])])
1125

1126
# _AM_SET_OPTION(NAME)
1127
# --------------------
1128 1129
# Set option NAME.  Presently that only means defining a flag for this option.
AC_DEFUN([_AM_SET_OPTION],
1130
[m4_define(_AM_MANGLE_OPTION([$1]), [1])])
1131

1132
# _AM_SET_OPTIONS(OPTIONS)
1133
# ------------------------
1134 1135
# OPTIONS is a space-separated list of Automake options.
AC_DEFUN([_AM_SET_OPTIONS],
1136
[m4_foreach_w([_AM_Option], [$1], [_AM_SET_OPTION(_AM_Option)])])
1137

1138 1139 1140 1141 1142
# _AM_IF_OPTION(OPTION, IF-SET, [IF-NOT-SET])
# -------------------------------------------
# Execute IF-SET if OPTION is set, IF-NOT-SET otherwise.
AC_DEFUN([_AM_IF_OPTION],
[m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])])
1143

1144
# Copyright (C) 1999-2017 Free Software Foundation, Inc.
1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190
#
# 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_PROG_CC_C_O
# ---------------
# Like AC_PROG_CC_C_O, but changed for automake.  We rewrite AC_PROG_CC
# to automatically call this.
AC_DEFUN([_AM_PROG_CC_C_O],
[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
AC_REQUIRE_AUX_FILE([compile])dnl
AC_LANG_PUSH([C])dnl
AC_CACHE_CHECK(
  [whether $CC understands -c and -o together],
  [am_cv_prog_cc_c_o],
  [AC_LANG_CONFTEST([AC_LANG_PROGRAM([])])
  # Make sure it works both with $CC and with simple cc.
  # Following AC_PROG_CC_C_O, we do the test twice because some
  # compilers refuse to overwrite an existing .o file with -o,
  # though they will create one.
  am_cv_prog_cc_c_o=yes
  for am_i in 1 2; do
    if AM_RUN_LOG([$CC -c conftest.$ac_ext -o conftest2.$ac_objext]) \
         && test -f conftest2.$ac_objext; then
      : OK
    else
      am_cv_prog_cc_c_o=no
      break
    fi
  done
  rm -f core conftest*
  unset am_i])
if test "$am_cv_prog_cc_c_o" != yes; then
   # Losing compiler, so override with the script.
   # FIXME: It is wrong to rewrite CC.
   # But if we don't then we get into trouble of one sort or another.
   # A longer-term fix would be to have automake use am__CC in this case,
   # and then we could set am__CC="\$(top_srcdir)/compile \$(CC)"
   CC="$am_aux_dir/compile $CC"
fi
AC_LANG_POP([C])])

# For backward compatibility.
AC_DEFUN_ONCE([AM_PROG_CC_C_O], [AC_REQUIRE([AC_PROG_CC])])

1191
# Copyright (C) 1999-2017 Free Software Foundation, Inc.
1192 1193 1194 1195
#
# 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.
1196

1197

1198 1199 1200 1201 1202 1203 1204 1205 1206 1207 1208 1209 1210 1211 1212 1213 1214 1215 1216 1217 1218 1219 1220 1221
# 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],
 [
1222 1223
  dnl Find a Python interpreter.  Python versions prior to 2.0 are not
  dnl supported. (2.0 was released on October 16, 2000).
1224
  dnl FIXME: Remove the need to hard-code Python versions here.
1225
  m4_define_default([_AM_PYTHON_INTERPRETER_LIST],
1226
[python python2 python3 python3.5 python3.4 python3.3 python3.2 python3.1 python3.0 python2.7 dnl
1227 1228 1229
 python2.6 python2.5 python2.4 python2.3 python2.2 python2.1 python2.0])

  AC_ARG_VAR([PYTHON], [the Python interpreter])
1230 1231 1232 1233 1234 1235 1236 1237 1238 1239 1240 1241

  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.
1242
      AC_MSG_CHECKING([whether $PYTHON version is >= $1])
1243
      AM_PYTHON_CHECK_VERSION([$PYTHON], [$1],
1244 1245 1246
			      [AC_MSG_RESULT([yes])],
			      [AC_MSG_RESULT([no])
			       AC_MSG_ERROR([Python interpreter is too old])])
1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 1271 1272 1273 1274 1275 1276
      am_display_PYTHON=$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.  Getting [:3] seems to be
  dnl the best way to do this; it's what "site.py" does in the standard
  dnl library.

  AC_CACHE_CHECK([for $am_display_PYTHON version], [am_cv_python_version],
1277
    [am_cv_python_version=`$PYTHON -c "import sys; sys.stdout.write(sys.version[[:3]])"`])
1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288 1289 1290 1291
  AC_SUBST([PYTHON_VERSION], [$am_cv_python_version])

  dnl Use the values of $prefix and $exec_prefix for the corresponding
  dnl values of PYTHON_PREFIX and PYTHON_EXEC_PREFIX.  These are made
  dnl distinct variables so they can be overridden if need be.  However,
  dnl general consensus is that you shouldn't need this ability.

  AC_SUBST([PYTHON_PREFIX], ['${prefix}'])
  AC_SUBST([PYTHON_EXEC_PREFIX], ['${exec_prefix}'])

  dnl At times (like when building shared libraries) you may want
  dnl to know which OS platform Python thinks this is.

  AC_CACHE_CHECK([for $am_display_PYTHON platform], [am_cv_python_platform],
1292
    [am_cv_python_platform=`$PYTHON -c "import sys; sys.stdout.write(sys.platform)"`])
1293 1294
  AC_SUBST([PYTHON_PLATFORM], [$am_cv_python_platform])

1295 1296 1297 1298 1299 1300 1301 1302 1303 1304 1305 1306 1307 1308 1309 1310 1311 1312 1313
  # Just factor out some code duplication.
  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"
1314 1315 1316 1317 1318 1319 1320

  dnl Set up 4 directories:

  dnl 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.
1321
  dnl Query distutils for this directory.
1322 1323
  AC_CACHE_CHECK([for $am_display_PYTHON script directory],
    [am_cv_python_pythondir],
1324 1325 1326 1327 1328 1329
    [if test "x$prefix" = xNONE
     then
       am_py_prefix=$ac_default_prefix
     else
       am_py_prefix=$prefix
     fi
1330 1331 1332 1333 1334 1335 1336 1337
     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)"`
1338 1339 1340 1341 1342
     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,"`
       ;;
1343 1344 1345 1346 1347 1348 1349 1350
     *)
       case $am_py_prefix in
         /usr|/System*) ;;
         *)
	  am_cv_python_pythondir=$PYTHON_PREFIX/lib/python$PYTHON_VERSION/site-packages
	  ;;
       esac
       ;;
1351 1352
     esac
    ])
1353 1354 1355 1356 1357 1358 1359 1360 1361 1362
  AC_SUBST([pythondir], [$am_cv_python_pythondir])

  dnl 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.

  AC_SUBST([pkgpythondir], [\${pythondir}/$PACKAGE])

  dnl pyexecdir -- directory for installing python extension modules
  dnl   (shared libraries)
1363
  dnl Query distutils for this directory.
1364 1365
  AC_CACHE_CHECK([for $am_display_PYTHON extension module directory],
    [am_cv_python_pyexecdir],
1366 1367 1368 1369 1370 1371
    [if test "x$exec_prefix" = xNONE
     then
       am_py_exec_prefix=$am_py_prefix
     else
       am_py_exec_prefix=$exec_prefix
     fi
1372 1373 1374 1375 1376 1377 1378 1379
     am_cv_python_pyexecdir=`$PYTHON -c "
$am_python_setup_sysconfig
if can_use_sysconfig:
    sitedir = sysconfig.get_path('platlib', vars={'platbase':'$am_py_prefix'})
else:
    from distutils import sysconfig
    sitedir = sysconfig.get_python_lib(1, 0, prefix='$am_py_prefix')
sys.stdout.write(sitedir)"`
1380 1381 1382 1383 1384
     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,"`
       ;;
1385 1386 1387 1388 1389 1390 1391 1392
     *)
       case $am_py_exec_prefix in
         /usr|/System*) ;;
         *)
	   am_cv_python_pyexecdir=$PYTHON_EXEC_PREFIX/lib/python$PYTHON_VERSION/site-packages
	   ;;
       esac
       ;;
1393 1394
     esac
    ])
1395 1396 1397 1398 1399 1400 1401 1402 1403
  AC_SUBST([pyexecdir], [$am_cv_python_pyexecdir])

  dnl pkgpyexecdir -- $(pyexecdir)/$(PACKAGE)

  AC_SUBST([pkgpyexecdir], [\${pyexecdir}/$PACKAGE])

  dnl Run any user-specified action.
  $2
  fi
1404

1405
])
1406

1407 1408 1409 1410 1411 1412 1413

# 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.
1414
# This supports Python 2.0 or higher. (2.0 was released on October 16, 2000).
1415
AC_DEFUN([AM_PYTHON_CHECK_VERSION],
1416
 [prog="import sys
1417 1418
# split strings by '.' and convert to numeric.  Append some zeros
# because we need at least 4 digits for the hex conversion.
1419 1420
# map returns an iterator in Python 3.0 and a list in 2.x
minver = list(map(int, '$2'.split('.'))) + [[0, 0, 0]]
1421
minverhex = 0
1422 1423
# 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]]
1424 1425
sys.exit(sys.hexversion < minverhex)"
  AS_IF([AM_RUN_LOG([$1 -c "$prog"])], [$3], [$4])])
1426

1427
# Copyright (C) 2001-2017 Free Software Foundation, Inc.
1428
#
1429 1430 1431
# 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.
1432

1433 1434 1435 1436 1437 1438 1439 1440 1441 1442
# 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); }])
1443

1444
# Check to make sure that the build environment is sane.    -*- Autoconf -*-
1445

1446
# Copyright (C) 1996-2017 Free Software Foundation, Inc.
1447 1448 1449 1450
#
# 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.
1451

1452 1453 1454 1455
# AM_SANITY_CHECK
# ---------------
AC_DEFUN([AM_SANITY_CHECK],
[AC_MSG_CHECKING([whether build environment is sane])
1456 1457 1458 1459 1460 1461 1462 1463 1464 1465
# Reject unsafe characters in $srcdir or the absolute working directory
# name.  Accept space and tab only in the latter.
am_lf='
'
case `pwd` in
  *[[\\\"\#\$\&\'\`$am_lf]]*)
    AC_MSG_ERROR([unsafe absolute working directory name]);;
esac
case $srcdir in
  *[[\\\"\#\$\&\'\`$am_lf\ \	]]*)
1466
    AC_MSG_ERROR([unsafe srcdir value: '$srcdir']);;
1467 1468
esac

1469
# Do 'set' in a subshell so we don't clobber the current shell's
1470 1471 1472 1473 1474
# arguments.  Must try -L first in case configure is actually a
# symlink; some systems play weird games with the mod time of symlinks
# (eg FreeBSD returns the mod time of the symlink's containing
# directory).
if (
1475 1476 1477 1478 1479 1480 1481 1482 1483 1484 1485 1486 1487 1488 1489 1490 1491 1492 1493 1494 1495 1496 1497 1498 1499
   am_has_slept=no
   for am_try in 1 2; do
     echo "timestamp, slept: $am_has_slept" > conftest.file
     set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null`
     if test "$[*]" = "X"; then
	# -L didn't work.
	set X `ls -t "$srcdir/configure" conftest.file`
     fi
     if test "$[*]" != "X $srcdir/configure conftest.file" \
	&& test "$[*]" != "X conftest.file $srcdir/configure"; then

	# If neither matched, then we have a broken ls.  This can happen
	# if, for instance, CONFIG_SHELL is bash and it inherits a
	# broken ls alias from the environment.  This has actually
	# happened.  Such a system could not be considered "sane".
	AC_MSG_ERROR([ls -t appears to fail.  Make sure there is not a broken
  alias in your environment])
     fi
     if test "$[2]" = conftest.file || test $am_try -eq 2; then
       break
     fi
     # Just in case.
     sleep 1
     am_has_slept=yes
   done
1500 1501 1502 1503 1504
   test "$[2]" = conftest.file
   )
then
   # Ok.
   :
1505
else
1506 1507
   AC_MSG_ERROR([newly created file is older than distributed files!
Check your system clock])
1508
fi
1509 1510 1511 1512 1513 1514 1515 1516 1517 1518 1519 1520 1521 1522 1523 1524 1525
AC_MSG_RESULT([yes])
# If we didn't sleep, we still need to ensure time stamps of config.status and
# generated files are strictly newer.
am_sleep_pid=
if grep 'slept: no' conftest.file >/dev/null 2>&1; then
  ( sleep 1 ) &
  am_sleep_pid=$!
fi
AC_CONFIG_COMMANDS_PRE(
  [AC_MSG_CHECKING([that generated files are newer than configure])
   if test -n "$am_sleep_pid"; then
     # Hide warnings about reused PIDs.
     wait $am_sleep_pid 2>/dev/null
   fi
   AC_MSG_RESULT([done])])
rm -f conftest.file
])
1526

1527
# Copyright (C) 2009-2017 Free Software Foundation, Inc.
1528 1529 1530 1531 1532 1533 1534 1535
#
# 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_SILENT_RULES([DEFAULT])
# --------------------------
# Enable less verbose build rules; with the default set to DEFAULT
1536
# ("yes" being less verbose, "no" or empty being verbose).
1537
AC_DEFUN([AM_SILENT_RULES],
1538 1539 1540 1541 1542 1543 1544 1545 1546 1547 1548 1549
[AC_ARG_ENABLE([silent-rules], [dnl
AS_HELP_STRING(
  [--enable-silent-rules],
  [less verbose build output (undo: "make V=1")])
AS_HELP_STRING(
  [--disable-silent-rules],
  [verbose build output (undo: "make V=0")])dnl
])
case $enable_silent_rules in @%:@ (((
  yes) AM_DEFAULT_VERBOSITY=0;;
   no) AM_DEFAULT_VERBOSITY=1;;
    *) AM_DEFAULT_VERBOSITY=m4_if([$1], [yes], [0], [1]);;
1550
esac
1551
dnl
1552
dnl A few 'make' implementations (e.g., NonStop OS and NextStep)
1553 1554 1555 1556 1557 1558 1559 1560 1561 1562 1563 1564 1565 1566 1567 1568 1569
dnl do not support nested variable expansions.
dnl See automake bug#9928 and bug#10237.
am_make=${MAKE-make}
AC_CACHE_CHECK([whether $am_make supports nested variables],
   [am_cv_make_support_nested_variables],
   [if AS_ECHO([['TRUE=$(BAR$(V))
BAR0=false
BAR1=true
V=1
am__doit:
	@$(TRUE)
.PHONY: am__doit']]) | $am_make -f - >/dev/null 2>&1; then
  am_cv_make_support_nested_variables=yes
else
  am_cv_make_support_nested_variables=no
fi])
if test $am_cv_make_support_nested_variables = yes; then
1570
  dnl Using '$V' instead of '$(V)' breaks IRIX make.
1571 1572 1573 1574 1575 1576 1577 1578 1579 1580
  AM_V='$(V)'
  AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
else
  AM_V=$AM_DEFAULT_VERBOSITY
  AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY
fi
AC_SUBST([AM_V])dnl
AM_SUBST_NOTMAKE([AM_V])dnl
AC_SUBST([AM_DEFAULT_V])dnl
AM_SUBST_NOTMAKE([AM_DEFAULT_V])dnl
1581 1582 1583 1584 1585 1586
AC_SUBST([AM_DEFAULT_VERBOSITY])dnl
AM_BACKSLASH='\'
AC_SUBST([AM_BACKSLASH])dnl
_AM_SUBST_NOTMAKE([AM_BACKSLASH])dnl
])

1587
# Copyright (C) 2001-2017 Free Software Foundation, Inc.
1588 1589 1590 1591
#
# 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.
1592

1593 1594
# AM_PROG_INSTALL_STRIP
# ---------------------
1595
# One issue with vendor 'install' (even GNU) is that you can't
1596 1597 1598 1599
# specify the program used to strip binaries.  This is especially
# annoying in cross-compiling environments, where the build's strip
# is unlikely to handle the host's binaries.
# Fortunately install-sh will honor a STRIPPROG variable, so we
1600
# always use install-sh in "make install-strip", and initialize
1601 1602 1603
# STRIPPROG with the value of the STRIP variable (set by the user).
AC_DEFUN([AM_PROG_INSTALL_STRIP],
[AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
1604 1605
# Installed binaries are usually stripped using 'strip' when the user
# run "make install-strip".  However 'strip' might not be the right
1606
# tool to use in cross-compilation environments, therefore Automake
1607 1608
# will honor the 'STRIP' environment variable to overrule this program.
dnl Don't test for $cross_compiling = yes, because it might be 'maybe'.
1609 1610 1611
if test "$cross_compiling" != no; then
  AC_CHECK_TOOL([STRIP], [strip], :)
fi
1612
INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
1613
AC_SUBST([INSTALL_STRIP_PROGRAM])])
1614

1615
# Copyright (C) 2006-2017 Free Software Foundation, Inc.
1616 1617 1618 1619
#
# 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.
1620

1621 1622
# _AM_SUBST_NOTMAKE(VARIABLE)
# ---------------------------
1623
# Prevent Automake from outputting VARIABLE = @VARIABLE@ in Makefile.in.
1624 1625
# This macro is traced by Automake.
AC_DEFUN([_AM_SUBST_NOTMAKE])
1626

1627
# AM_SUBST_NOTMAKE(VARIABLE)
1628
# --------------------------
1629 1630 1631
# Public sister of _AM_SUBST_NOTMAKE.
AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE($@)])

1632
# Check how to create a tarball.                            -*- Autoconf -*-
1633

1634
# Copyright (C) 2004-2017 Free Software Foundation, Inc.
1635 1636 1637 1638
#
# 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.
1639

1640 1641 1642
# _AM_PROG_TAR(FORMAT)
# --------------------
# Check how to create a tarball in format FORMAT.
1643
# FORMAT should be one of 'v7', 'ustar', or 'pax'.
1644 1645 1646 1647 1648
#
# Substitute a variable $(am__tar) that is a command
# writing to stdout a FORMAT-tarball containing the directory
# $tardir.
#     tardir=directory && $(am__tar) > result.tar
1649
#
1650 1651 1652
# Substitute a variable $(am__untar) that extract such
# a tarball read from stdin.
#     $(am__untar) < result.tar
1653
#
1654
AC_DEFUN([_AM_PROG_TAR],
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[# Always define AMTAR for backward compatibility.  Yes, it's still used
# in the wild :-(  We should find a proper way to deprecate it ...
AC_SUBST([AMTAR], ['$${TAR-tar}'])
1658 1659

# We'll loop over all known methods to create a tar archive until one works.
1660
_am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none'
1661

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m4_if([$1], [v7],
  [am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'],

  [m4_case([$1],
    [ustar],
     [# The POSIX 1988 'ustar' format is defined with fixed-size fields.
      # There is notably a 21 bits limit for the UID and the GID.  In fact,
      # the 'pax' utility can hang on bigger UID/GID (see automake bug#8343
      # and bug#13588).
      am_max_uid=2097151 # 2^21 - 1
      am_max_gid=$am_max_uid
      # The $UID and $GID variables are not portable, so we need to resort
      # to the POSIX-mandated id(1) utility.  Errors in the 'id' calls
      # below are definitely unexpected, so allow the users to see them
      # (that is, avoid stderr redirection).
      am_uid=`id -u || echo unknown`
      am_gid=`id -g || echo unknown`
      AC_MSG_CHECKING([whether UID '$am_uid' is supported by ustar format])
      if test $am_uid -le $am_max_uid; then
         AC_MSG_RESULT([yes])
      else
         AC_MSG_RESULT([no])
         _am_tools=none
      fi
      AC_MSG_CHECKING([whether GID '$am_gid' is supported by ustar format])
      if test $am_gid -le $am_max_gid; then
         AC_MSG_RESULT([yes])
      else
        AC_MSG_RESULT([no])
        _am_tools=none
      fi],

  [pax],
    [],

  [m4_fatal([Unknown tar format])])

  AC_MSG_CHECKING([how to create a $1 tar archive])

  # Go ahead even if we have the value already cached.  We do so because we
  # need to set the values for the 'am__tar' and 'am__untar' variables.
  _am_tools=${am_cv_prog_tar_$1-$_am_tools}

  for _am_tool in $_am_tools; do
    case $_am_tool in
    gnutar)
      for _am_tar in tar gnutar gtar; do
        AM_RUN_LOG([$_am_tar --version]) && break
      done
      am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"'
      am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"'
      am__untar="$_am_tar -xf -"
      ;;
    plaintar)
      # Must skip GNU tar: if it does not support --format= it doesn't create
      # ustar tarball either.
      (tar --version) >/dev/null 2>&1 && continue
      am__tar='tar chf - "$$tardir"'
      am__tar_='tar chf - "$tardir"'
      am__untar='tar xf -'
      ;;
    pax)
      am__tar='pax -L -x $1 -w "$$tardir"'
      am__tar_='pax -L -x $1 -w "$tardir"'
      am__untar='pax -r'
      ;;
    cpio)
      am__tar='find "$$tardir" -print | cpio -o -H $1 -L'
      am__tar_='find "$tardir" -print | cpio -o -H $1 -L'
      am__untar='cpio -i -H $1 -d'
      ;;
    none)
      am__tar=false
      am__tar_=false
      am__untar=false
      ;;
    esac
1739

1740 1741 1742 1743 1744 1745 1746 1747 1748 1749 1750 1751 1752 1753 1754 1755
    # If the value was cached, stop now.  We just wanted to have am__tar
    # and am__untar set.
    test -n "${am_cv_prog_tar_$1}" && break

    # tar/untar a dummy directory, and stop if the command works.
    rm -rf conftest.dir
    mkdir conftest.dir
    echo GrepMe > conftest.dir/file
    AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar])
    rm -rf conftest.dir
    if test -s conftest.tar; then
      AM_RUN_LOG([$am__untar <conftest.tar])
      AM_RUN_LOG([cat conftest.dir/file])
      grep GrepMe conftest.dir/file >/dev/null 2>&1 && break
    fi
  done
1756
  rm -rf conftest.dir
1757

1758 1759 1760
  AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool])
  AC_MSG_RESULT([$am_cv_prog_tar_$1])])

1761 1762 1763
AC_SUBST([am__tar])
AC_SUBST([am__untar])
]) # _AM_PROG_TAR
1764

1765 1766 1767 1768 1769
m4_include([m4/gettext.m4])
m4_include([m4/iconv.m4])
m4_include([m4/lib-ld.m4])
m4_include([m4/lib-link.m4])
m4_include([m4/lib-prefix.m4])
1770 1771 1772 1773 1774
m4_include([m4/libtool.m4])
m4_include([m4/ltoptions.m4])
m4_include([m4/ltsugar.m4])
m4_include([m4/ltversion.m4])
m4_include([m4/lt~obsolete.m4])
1775 1776 1777
m4_include([m4/nls.m4])
m4_include([m4/po.m4])
m4_include([m4/progtest.m4])