1# generated automatically by aclocal 1.15.1 -*- Autoconf -*-
2
3# Copyright (C) 1996-2017 Free Software Foundation, Inc.
4
5# This file is free software; the Free Software Foundation
6# gives unlimited permission to copy and/or distribute it,
7# with or without modifications, as long as this notice is preserved.
8
9# This program is distributed in the hope that it will be useful,
10# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
11# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
12# PARTICULAR PURPOSE.
13
14m4_ifndef([AC_CONFIG_MACRO_DIRS], [m4_defun([_AM_CONFIG_MACRO_DIRS], [])m4_defun([AC_CONFIG_MACRO_DIRS], [_AM_CONFIG_MACRO_DIRS($@)])])
15m4_ifndef([AC_AUTOCONF_VERSION],
16  [m4_copy([m4_PACKAGE_VERSION], [AC_AUTOCONF_VERSION])])dnl
17m4_if(m4_defn([AC_AUTOCONF_VERSION]), [2.69],,
18[m4_warning([this file was generated for autoconf 2.69.
19You have another version of autoconf.  It may work, but is not guaranteed to.
20If you have problems, you may need to regenerate the build system entirely.
21To do so, use the procedure documented by the package, typically 'autoreconf'.])])
22
23# ===========================================================================
24#    https://www.gnu.org/software/autoconf-archive/ax_require_defined.html
25# ===========================================================================
26#
27# SYNOPSIS
28#
29#   AX_REQUIRE_DEFINED(MACRO)
30#
31# DESCRIPTION
32#
33#   AX_REQUIRE_DEFINED is a simple helper for making sure other macros have
34#   been defined and thus are available for use.  This avoids random issues
35#   where a macro isn't expanded.  Instead the configure script emits a
36#   non-fatal:
37#
38#     ./configure: line 1673: AX_CFLAGS_WARN_ALL: command not found
39#
40#   It's like AC_REQUIRE except it doesn't expand the required macro.
41#
42#   Here's an example:
43#
44#     AX_REQUIRE_DEFINED([AX_CHECK_LINK_FLAG])
45#
46# LICENSE
47#
48#   Copyright (c) 2014 Mike Frysinger <vapier@gentoo.org>
49#
50#   Copying and distribution of this file, with or without modification, are
51#   permitted in any medium without royalty provided the copyright notice
52#   and this notice are preserved. This file is offered as-is, without any
53#   warranty.
54
55#serial 2
56
57AC_DEFUN([AX_REQUIRE_DEFINED], [dnl
58  m4_ifndef([$1], [m4_fatal([macro ]$1[ is not defined; is a m4 file missing?])])
59])dnl AX_REQUIRE_DEFINED
60
61# pkg.m4 - Macros to locate and utilise pkg-config.   -*- Autoconf -*-
62# serial 12 (pkg-config-0.29.2)
63
64dnl Copyright © 2004 Scott James Remnant <scott@netsplit.com>.
65dnl Copyright © 2012-2015 Dan Nicholson <dbn.lists@gmail.com>
66dnl
67dnl This program is free software; you can redistribute it and/or modify
68dnl it under the terms of the GNU General Public License as published by
69dnl the Free Software Foundation; either version 2 of the License, or
70dnl (at your option) any later version.
71dnl
72dnl This program is distributed in the hope that it will be useful, but
73dnl WITHOUT ANY WARRANTY; without even the implied warranty of
74dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
75dnl General Public License for more details.
76dnl
77dnl You should have received a copy of the GNU General Public License
78dnl along with this program; if not, write to the Free Software
79dnl Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
80dnl 02111-1307, USA.
81dnl
82dnl As a special exception to the GNU General Public License, if you
83dnl distribute this file as part of a program that contains a
84dnl configuration script generated by Autoconf, you may include it under
85dnl the same distribution terms that you use for the rest of that
86dnl program.
87
88dnl PKG_PREREQ(MIN-VERSION)
89dnl -----------------------
90dnl Since: 0.29
91dnl
92dnl Verify that the version of the pkg-config macros are at least
93dnl MIN-VERSION. Unlike PKG_PROG_PKG_CONFIG, which checks the user's
94dnl installed version of pkg-config, this checks the developer's version
95dnl of pkg.m4 when generating configure.
96dnl
97dnl To ensure that this macro is defined, also add:
98dnl m4_ifndef([PKG_PREREQ],
99dnl     [m4_fatal([must install pkg-config 0.29 or later before running autoconf/autogen])])
100dnl
101dnl See the "Since" comment for each macro you use to see what version
102dnl of the macros you require.
103m4_defun([PKG_PREREQ],
104[m4_define([PKG_MACROS_VERSION], [0.29.2])
105m4_if(m4_version_compare(PKG_MACROS_VERSION, [$1]), -1,
106    [m4_fatal([pkg.m4 version $1 or higher is required but ]PKG_MACROS_VERSION[ found])])
107])dnl PKG_PREREQ
108
109dnl PKG_PROG_PKG_CONFIG([MIN-VERSION])
110dnl ----------------------------------
111dnl Since: 0.16
112dnl
113dnl Search for the pkg-config tool and set the PKG_CONFIG variable to
114dnl first found in the path. Checks that the version of pkg-config found
115dnl is at least MIN-VERSION. If MIN-VERSION is not specified, 0.9.0 is
116dnl used since that's the first version where most current features of
117dnl pkg-config existed.
118AC_DEFUN([PKG_PROG_PKG_CONFIG],
119[m4_pattern_forbid([^_?PKG_[A-Z_]+$])
120m4_pattern_allow([^PKG_CONFIG(_(PATH|LIBDIR|SYSROOT_DIR|ALLOW_SYSTEM_(CFLAGS|LIBS)))?$])
121m4_pattern_allow([^PKG_CONFIG_(DISABLE_UNINSTALLED|TOP_BUILD_DIR|DEBUG_SPEW)$])
122AC_ARG_VAR([PKG_CONFIG], [path to pkg-config utility])
123AC_ARG_VAR([PKG_CONFIG_PATH], [directories to add to pkg-config's search path])
124AC_ARG_VAR([PKG_CONFIG_LIBDIR], [path overriding pkg-config's built-in search path])
125
126if test "x$ac_cv_env_PKG_CONFIG_set" != "xset"; then
127	AC_PATH_TOOL([PKG_CONFIG], [pkg-config])
128fi
129if test -n "$PKG_CONFIG"; then
130	_pkg_min_version=m4_default([$1], [0.9.0])
131	AC_MSG_CHECKING([pkg-config is at least version $_pkg_min_version])
132	if $PKG_CONFIG --atleast-pkgconfig-version $_pkg_min_version; then
133		AC_MSG_RESULT([yes])
134	else
135		AC_MSG_RESULT([no])
136		PKG_CONFIG=""
137	fi
138fi[]dnl
139])dnl PKG_PROG_PKG_CONFIG
140
141dnl PKG_CHECK_EXISTS(MODULES, [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
142dnl -------------------------------------------------------------------
143dnl Since: 0.18
144dnl
145dnl Check to see whether a particular set of modules exists. Similar to
146dnl PKG_CHECK_MODULES(), but does not set variables or print errors.
147dnl
148dnl Please remember that m4 expands AC_REQUIRE([PKG_PROG_PKG_CONFIG])
149dnl only at the first occurence in configure.ac, so if the first place
150dnl it's called might be skipped (such as if it is within an "if", you
151dnl have to call PKG_CHECK_EXISTS manually
152AC_DEFUN([PKG_CHECK_EXISTS],
153[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
154if test -n "$PKG_CONFIG" && \
155    AC_RUN_LOG([$PKG_CONFIG --exists --print-errors "$1"]); then
156  m4_default([$2], [:])
157m4_ifvaln([$3], [else
158  $3])dnl
159fi])
160
161dnl _PKG_CONFIG([VARIABLE], [COMMAND], [MODULES])
162dnl ---------------------------------------------
163dnl Internal wrapper calling pkg-config via PKG_CONFIG and setting
164dnl pkg_failed based on the result.
165m4_define([_PKG_CONFIG],
166[if test -n "$$1"; then
167    pkg_cv_[]$1="$$1"
168 elif test -n "$PKG_CONFIG"; then
169    PKG_CHECK_EXISTS([$3],
170                     [pkg_cv_[]$1=`$PKG_CONFIG --[]$2 "$3" 2>/dev/null`
171		      test "x$?" != "x0" && pkg_failed=yes ],
172		     [pkg_failed=yes])
173 else
174    pkg_failed=untried
175fi[]dnl
176])dnl _PKG_CONFIG
177
178dnl _PKG_SHORT_ERRORS_SUPPORTED
179dnl ---------------------------
180dnl Internal check to see if pkg-config supports short errors.
181AC_DEFUN([_PKG_SHORT_ERRORS_SUPPORTED],
182[AC_REQUIRE([PKG_PROG_PKG_CONFIG])
183if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
184        _pkg_short_errors_supported=yes
185else
186        _pkg_short_errors_supported=no
187fi[]dnl
188])dnl _PKG_SHORT_ERRORS_SUPPORTED
189
190
191dnl PKG_CHECK_MODULES(VARIABLE-PREFIX, MODULES, [ACTION-IF-FOUND],
192dnl   [ACTION-IF-NOT-FOUND])
193dnl --------------------------------------------------------------
194dnl Since: 0.4.0
195dnl
196dnl Note that if there is a possibility the first call to
197dnl PKG_CHECK_MODULES might not happen, you should be sure to include an
198dnl explicit call to PKG_PROG_PKG_CONFIG in your configure.ac
199AC_DEFUN([PKG_CHECK_MODULES],
200[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
201AC_ARG_VAR([$1][_CFLAGS], [C compiler flags for $1, overriding pkg-config])dnl
202AC_ARG_VAR([$1][_LIBS], [linker flags for $1, overriding pkg-config])dnl
203
204pkg_failed=no
205AC_MSG_CHECKING([for $2])
206
207_PKG_CONFIG([$1][_CFLAGS], [cflags], [$2])
208_PKG_CONFIG([$1][_LIBS], [libs], [$2])
209
210m4_define([_PKG_TEXT], [Alternatively, you may set the environment variables $1[]_CFLAGS
211and $1[]_LIBS to avoid the need to call pkg-config.
212See the pkg-config man page for more details.])
213
214if test $pkg_failed = yes; then
215        AC_MSG_RESULT([no])
216        _PKG_SHORT_ERRORS_SUPPORTED
217        if test $_pkg_short_errors_supported = yes; then
218	        $1[]_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "$2" 2>&1`
219        else
220	        $1[]_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "$2" 2>&1`
221        fi
222	# Put the nasty error message in config.log where it belongs
223	echo "$$1[]_PKG_ERRORS" >&AS_MESSAGE_LOG_FD
224
225	m4_default([$4], [AC_MSG_ERROR(
226[Package requirements ($2) were not met:
227
228$$1_PKG_ERRORS
229
230Consider adjusting the PKG_CONFIG_PATH environment variable if you
231installed software in a non-standard prefix.
232
233_PKG_TEXT])[]dnl
234        ])
235elif test $pkg_failed = untried; then
236        AC_MSG_RESULT([no])
237	m4_default([$4], [AC_MSG_FAILURE(
238[The pkg-config script could not be found or is too old.  Make sure it
239is in your PATH or set the PKG_CONFIG environment variable to the full
240path to pkg-config.
241
242_PKG_TEXT
243
244To get pkg-config, see <http://pkg-config.freedesktop.org/>.])[]dnl
245        ])
246else
247	$1[]_CFLAGS=$pkg_cv_[]$1[]_CFLAGS
248	$1[]_LIBS=$pkg_cv_[]$1[]_LIBS
249        AC_MSG_RESULT([yes])
250	$3
251fi[]dnl
252])dnl PKG_CHECK_MODULES
253
254
255dnl PKG_CHECK_MODULES_STATIC(VARIABLE-PREFIX, MODULES, [ACTION-IF-FOUND],
256dnl   [ACTION-IF-NOT-FOUND])
257dnl ---------------------------------------------------------------------
258dnl Since: 0.29
259dnl
260dnl Checks for existence of MODULES and gathers its build flags with
261dnl static libraries enabled. Sets VARIABLE-PREFIX_CFLAGS from --cflags
262dnl and VARIABLE-PREFIX_LIBS from --libs.
263dnl
264dnl Note that if there is a possibility the first call to
265dnl PKG_CHECK_MODULES_STATIC might not happen, you should be sure to
266dnl include an explicit call to PKG_PROG_PKG_CONFIG in your
267dnl configure.ac.
268AC_DEFUN([PKG_CHECK_MODULES_STATIC],
269[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
270_save_PKG_CONFIG=$PKG_CONFIG
271PKG_CONFIG="$PKG_CONFIG --static"
272PKG_CHECK_MODULES($@)
273PKG_CONFIG=$_save_PKG_CONFIG[]dnl
274])dnl PKG_CHECK_MODULES_STATIC
275
276
277dnl PKG_INSTALLDIR([DIRECTORY])
278dnl -------------------------
279dnl Since: 0.27
280dnl
281dnl Substitutes the variable pkgconfigdir as the location where a module
282dnl should install pkg-config .pc files. By default the directory is
283dnl $libdir/pkgconfig, but the default can be changed by passing
284dnl DIRECTORY. The user can override through the --with-pkgconfigdir
285dnl parameter.
286AC_DEFUN([PKG_INSTALLDIR],
287[m4_pushdef([pkg_default], [m4_default([$1], ['${libdir}/pkgconfig'])])
288m4_pushdef([pkg_description],
289    [pkg-config installation directory @<:@]pkg_default[@:>@])
290AC_ARG_WITH([pkgconfigdir],
291    [AS_HELP_STRING([--with-pkgconfigdir], pkg_description)],,
292    [with_pkgconfigdir=]pkg_default)
293AC_SUBST([pkgconfigdir], [$with_pkgconfigdir])
294m4_popdef([pkg_default])
295m4_popdef([pkg_description])
296])dnl PKG_INSTALLDIR
297
298
299dnl PKG_NOARCH_INSTALLDIR([DIRECTORY])
300dnl --------------------------------
301dnl Since: 0.27
302dnl
303dnl Substitutes the variable noarch_pkgconfigdir as the location where a
304dnl module should install arch-independent pkg-config .pc files. By
305dnl default the directory is $datadir/pkgconfig, but the default can be
306dnl changed by passing DIRECTORY. The user can override through the
307dnl --with-noarch-pkgconfigdir parameter.
308AC_DEFUN([PKG_NOARCH_INSTALLDIR],
309[m4_pushdef([pkg_default], [m4_default([$1], ['${datadir}/pkgconfig'])])
310m4_pushdef([pkg_description],
311    [pkg-config arch-independent installation directory @<:@]pkg_default[@:>@])
312AC_ARG_WITH([noarch-pkgconfigdir],
313    [AS_HELP_STRING([--with-noarch-pkgconfigdir], pkg_description)],,
314    [with_noarch_pkgconfigdir=]pkg_default)
315AC_SUBST([noarch_pkgconfigdir], [$with_noarch_pkgconfigdir])
316m4_popdef([pkg_default])
317m4_popdef([pkg_description])
318])dnl PKG_NOARCH_INSTALLDIR
319
320
321dnl PKG_CHECK_VAR(VARIABLE, MODULE, CONFIG-VARIABLE,
322dnl [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
323dnl -------------------------------------------
324dnl Since: 0.28
325dnl
326dnl Retrieves the value of the pkg-config variable for the given module.
327AC_DEFUN([PKG_CHECK_VAR],
328[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
329AC_ARG_VAR([$1], [value of $3 for $2, overriding pkg-config])dnl
330
331_PKG_CONFIG([$1], [variable="][$3]["], [$2])
332AS_VAR_COPY([$1], [pkg_cv_][$1])
333
334AS_VAR_IF([$1], [""], [$5], [$4])dnl
335])dnl PKG_CHECK_VAR
336
337# Copyright (C) 2002-2017 Free Software Foundation, Inc.
338#
339# This file is free software; the Free Software Foundation
340# gives unlimited permission to copy and/or distribute it,
341# with or without modifications, as long as this notice is preserved.
342
343# AM_AUTOMAKE_VERSION(VERSION)
344# ----------------------------
345# Automake X.Y traces this macro to ensure aclocal.m4 has been
346# generated from the m4 files accompanying Automake X.Y.
347# (This private macro should not be called outside this file.)
348AC_DEFUN([AM_AUTOMAKE_VERSION],
349[am__api_version='1.15'
350dnl Some users find AM_AUTOMAKE_VERSION and mistake it for a way to
351dnl require some minimum version.  Point them to the right macro.
352m4_if([$1], [1.15.1], [],
353      [AC_FATAL([Do not call $0, use AM_INIT_AUTOMAKE([$1]).])])dnl
354])
355
356# _AM_AUTOCONF_VERSION(VERSION)
357# -----------------------------
358# aclocal traces this macro to find the Autoconf version.
359# This is a private macro too.  Using m4_define simplifies
360# the logic in aclocal, which can simply ignore this definition.
361m4_define([_AM_AUTOCONF_VERSION], [])
362
363# AM_SET_CURRENT_AUTOMAKE_VERSION
364# -------------------------------
365# Call AM_AUTOMAKE_VERSION and AM_AUTOMAKE_VERSION so they can be traced.
366# This function is AC_REQUIREd by AM_INIT_AUTOMAKE.
367AC_DEFUN([AM_SET_CURRENT_AUTOMAKE_VERSION],
368[AM_AUTOMAKE_VERSION([1.15.1])dnl
369m4_ifndef([AC_AUTOCONF_VERSION],
370  [m4_copy([m4_PACKAGE_VERSION], [AC_AUTOCONF_VERSION])])dnl
371_AM_AUTOCONF_VERSION(m4_defn([AC_AUTOCONF_VERSION]))])
372
373# Copyright (C) 2011-2017 Free Software Foundation, Inc.
374#
375# This file is free software; the Free Software Foundation
376# gives unlimited permission to copy and/or distribute it,
377# with or without modifications, as long as this notice is preserved.
378
379# AM_PROG_AR([ACT-IF-FAIL])
380# -------------------------
381# Try to determine the archiver interface, and trigger the ar-lib wrapper
382# if it is needed.  If the detection of archiver interface fails, run
383# ACT-IF-FAIL (default is to abort configure with a proper error message).
384AC_DEFUN([AM_PROG_AR],
385[AC_BEFORE([$0], [LT_INIT])dnl
386AC_BEFORE([$0], [AC_PROG_LIBTOOL])dnl
387AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
388AC_REQUIRE_AUX_FILE([ar-lib])dnl
389AC_CHECK_TOOLS([AR], [ar lib "link -lib"], [false])
390: ${AR=ar}
391
392AC_CACHE_CHECK([the archiver ($AR) interface], [am_cv_ar_interface],
393  [AC_LANG_PUSH([C])
394   am_cv_ar_interface=ar
395   AC_COMPILE_IFELSE([AC_LANG_SOURCE([[int some_variable = 0;]])],
396     [am_ar_try='$AR cru libconftest.a conftest.$ac_objext >&AS_MESSAGE_LOG_FD'
397      AC_TRY_EVAL([am_ar_try])
398      if test "$ac_status" -eq 0; then
399        am_cv_ar_interface=ar
400      else
401        am_ar_try='$AR -NOLOGO -OUT:conftest.lib conftest.$ac_objext >&AS_MESSAGE_LOG_FD'
402        AC_TRY_EVAL([am_ar_try])
403        if test "$ac_status" -eq 0; then
404          am_cv_ar_interface=lib
405        else
406          am_cv_ar_interface=unknown
407        fi
408      fi
409      rm -f conftest.lib libconftest.a
410     ])
411   AC_LANG_POP([C])])
412
413case $am_cv_ar_interface in
414ar)
415  ;;
416lib)
417  # Microsoft lib, so override with the ar-lib wrapper script.
418  # FIXME: It is wrong to rewrite AR.
419  # But if we don't then we get into trouble of one sort or another.
420  # A longer-term fix would be to have automake use am__AR in this case,
421  # and then we could set am__AR="$am_aux_dir/ar-lib \$(AR)" or something
422  # similar.
423  AR="$am_aux_dir/ar-lib $AR"
424  ;;
425unknown)
426  m4_default([$1],
427             [AC_MSG_ERROR([could not determine $AR interface])])
428  ;;
429esac
430AC_SUBST([AR])dnl
431])
432
433# AM_AUX_DIR_EXPAND                                         -*- Autoconf -*-
434
435# Copyright (C) 2001-2017 Free Software Foundation, Inc.
436#
437# This file is free software; the Free Software Foundation
438# gives unlimited permission to copy and/or distribute it,
439# with or without modifications, as long as this notice is preserved.
440
441# For projects using AC_CONFIG_AUX_DIR([foo]), Autoconf sets
442# $ac_aux_dir to '$srcdir/foo'.  In other projects, it is set to
443# '$srcdir', '$srcdir/..', or '$srcdir/../..'.
444#
445# Of course, Automake must honor this variable whenever it calls a
446# tool from the auxiliary directory.  The problem is that $srcdir (and
447# therefore $ac_aux_dir as well) can be either absolute or relative,
448# depending on how configure is run.  This is pretty annoying, since
449# it makes $ac_aux_dir quite unusable in subdirectories: in the top
450# source directory, any form will work fine, but in subdirectories a
451# relative path needs to be adjusted first.
452#
453# $ac_aux_dir/missing
454#    fails when called from a subdirectory if $ac_aux_dir is relative
455# $top_srcdir/$ac_aux_dir/missing
456#    fails if $ac_aux_dir is absolute,
457#    fails when called from a subdirectory in a VPATH build with
458#          a relative $ac_aux_dir
459#
460# The reason of the latter failure is that $top_srcdir and $ac_aux_dir
461# are both prefixed by $srcdir.  In an in-source build this is usually
462# harmless because $srcdir is '.', but things will broke when you
463# start a VPATH build or use an absolute $srcdir.
464#
465# So we could use something similar to $top_srcdir/$ac_aux_dir/missing,
466# iff we strip the leading $srcdir from $ac_aux_dir.  That would be:
467#   am_aux_dir='\$(top_srcdir)/'`expr "$ac_aux_dir" : "$srcdir//*\(.*\)"`
468# and then we would define $MISSING as
469#   MISSING="\${SHELL} $am_aux_dir/missing"
470# This will work as long as MISSING is not called from configure, because
471# unfortunately $(top_srcdir) has no meaning in configure.
472# However there are other variables, like CC, which are often used in
473# configure, and could therefore not use this "fixed" $ac_aux_dir.
474#
475# Another solution, used here, is to always expand $ac_aux_dir to an
476# absolute PATH.  The drawback is that using absolute paths prevent a
477# configured tree to be moved without reconfiguration.
478
479AC_DEFUN([AM_AUX_DIR_EXPAND],
480[AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT])dnl
481# Expand $ac_aux_dir to an absolute path.
482am_aux_dir=`cd "$ac_aux_dir" && pwd`
483])
484
485# AM_CONDITIONAL                                            -*- Autoconf -*-
486
487# Copyright (C) 1997-2017 Free Software Foundation, Inc.
488#
489# This file is free software; the Free Software Foundation
490# gives unlimited permission to copy and/or distribute it,
491# with or without modifications, as long as this notice is preserved.
492
493# AM_CONDITIONAL(NAME, SHELL-CONDITION)
494# -------------------------------------
495# Define a conditional.
496AC_DEFUN([AM_CONDITIONAL],
497[AC_PREREQ([2.52])dnl
498 m4_if([$1], [TRUE],  [AC_FATAL([$0: invalid condition: $1])],
499       [$1], [FALSE], [AC_FATAL([$0: invalid condition: $1])])dnl
500AC_SUBST([$1_TRUE])dnl
501AC_SUBST([$1_FALSE])dnl
502_AM_SUBST_NOTMAKE([$1_TRUE])dnl
503_AM_SUBST_NOTMAKE([$1_FALSE])dnl
504m4_define([_AM_COND_VALUE_$1], [$2])dnl
505if $2; then
506  $1_TRUE=
507  $1_FALSE='#'
508else
509  $1_TRUE='#'
510  $1_FALSE=
511fi
512AC_CONFIG_COMMANDS_PRE(
513[if test -z "${$1_TRUE}" && test -z "${$1_FALSE}"; then
514  AC_MSG_ERROR([[conditional "$1" was never defined.
515Usually this means the macro was only invoked conditionally.]])
516fi])])
517
518# Copyright (C) 1999-2017 Free Software Foundation, Inc.
519#
520# This file is free software; the Free Software Foundation
521# gives unlimited permission to copy and/or distribute it,
522# with or without modifications, as long as this notice is preserved.
523
524
525# There are a few dirty hacks below to avoid letting 'AC_PROG_CC' be
526# written in clear, in which case automake, when reading aclocal.m4,
527# will think it sees a *use*, and therefore will trigger all it's
528# C support machinery.  Also note that it means that autoscan, seeing
529# CC etc. in the Makefile, will ask for an AC_PROG_CC use...
530
531
532# _AM_DEPENDENCIES(NAME)
533# ----------------------
534# See how the compiler implements dependency checking.
535# NAME is "CC", "CXX", "OBJC", "OBJCXX", "UPC", or "GJC".
536# We try a few techniques and use that to set a single cache variable.
537#
538# We don't AC_REQUIRE the corresponding AC_PROG_CC since the latter was
539# modified to invoke _AM_DEPENDENCIES(CC); we would have a circular
540# dependency, and given that the user is not expected to run this macro,
541# just rely on AC_PROG_CC.
542AC_DEFUN([_AM_DEPENDENCIES],
543[AC_REQUIRE([AM_SET_DEPDIR])dnl
544AC_REQUIRE([AM_OUTPUT_DEPENDENCY_COMMANDS])dnl
545AC_REQUIRE([AM_MAKE_INCLUDE])dnl
546AC_REQUIRE([AM_DEP_TRACK])dnl
547
548m4_if([$1], [CC],   [depcc="$CC"   am_compiler_list=],
549      [$1], [CXX],  [depcc="$CXX"  am_compiler_list=],
550      [$1], [OBJC], [depcc="$OBJC" am_compiler_list='gcc3 gcc'],
551      [$1], [OBJCXX], [depcc="$OBJCXX" am_compiler_list='gcc3 gcc'],
552      [$1], [UPC],  [depcc="$UPC"  am_compiler_list=],
553      [$1], [GCJ],  [depcc="$GCJ"  am_compiler_list='gcc3 gcc'],
554                    [depcc="$$1"   am_compiler_list=])
555
556AC_CACHE_CHECK([dependency style of $depcc],
557               [am_cv_$1_dependencies_compiler_type],
558[if test -z "$AMDEP_TRUE" && test -f "$am_depcomp"; then
559  # We make a subdir and do the tests there.  Otherwise we can end up
560  # making bogus files that we don't know about and never remove.  For
561  # instance it was reported that on HP-UX the gcc test will end up
562  # making a dummy file named 'D' -- because '-MD' means "put the output
563  # in D".
564  rm -rf conftest.dir
565  mkdir conftest.dir
566  # Copy depcomp to subdir because otherwise we won't find it if we're
567  # using a relative directory.
568  cp "$am_depcomp" conftest.dir
569  cd conftest.dir
570  # We will build objects and dependencies in a subdirectory because
571  # it helps to detect inapplicable dependency modes.  For instance
572  # both Tru64's cc and ICC support -MD to output dependencies as a
573  # side effect of compilation, but ICC will put the dependencies in
574  # the current directory while Tru64 will put them in the object
575  # directory.
576  mkdir sub
577
578  am_cv_$1_dependencies_compiler_type=none
579  if test "$am_compiler_list" = ""; then
580     am_compiler_list=`sed -n ['s/^#*\([a-zA-Z0-9]*\))$/\1/p'] < ./depcomp`
581  fi
582  am__universal=false
583  m4_case([$1], [CC],
584    [case " $depcc " in #(
585     *\ -arch\ *\ -arch\ *) am__universal=true ;;
586     esac],
587    [CXX],
588    [case " $depcc " in #(
589     *\ -arch\ *\ -arch\ *) am__universal=true ;;
590     esac])
591
592  for depmode in $am_compiler_list; do
593    # Setup a source with many dependencies, because some compilers
594    # like to wrap large dependency lists on column 80 (with \), and
595    # we should not choose a depcomp mode which is confused by this.
596    #
597    # We need to recreate these files for each test, as the compiler may
598    # overwrite some of them when testing with obscure command lines.
599    # This happens at least with the AIX C compiler.
600    : > sub/conftest.c
601    for i in 1 2 3 4 5 6; do
602      echo '#include "conftst'$i'.h"' >> sub/conftest.c
603      # Using ": > sub/conftst$i.h" creates only sub/conftst1.h with
604      # Solaris 10 /bin/sh.
605      echo '/* dummy */' > sub/conftst$i.h
606    done
607    echo "${am__include} ${am__quote}sub/conftest.Po${am__quote}" > confmf
608
609    # We check with '-c' and '-o' for the sake of the "dashmstdout"
610    # mode.  It turns out that the SunPro C++ compiler does not properly
611    # handle '-M -o', and we need to detect this.  Also, some Intel
612    # versions had trouble with output in subdirs.
613    am__obj=sub/conftest.${OBJEXT-o}
614    am__minus_obj="-o $am__obj"
615    case $depmode in
616    gcc)
617      # This depmode causes a compiler race in universal mode.
618      test "$am__universal" = false || continue
619      ;;
620    nosideeffect)
621      # After this tag, mechanisms are not by side-effect, so they'll
622      # only be used when explicitly requested.
623      if test "x$enable_dependency_tracking" = xyes; then
624	continue
625      else
626	break
627      fi
628      ;;
629    msvc7 | msvc7msys | msvisualcpp | msvcmsys)
630      # This compiler won't grok '-c -o', but also, the minuso test has
631      # not run yet.  These depmodes are late enough in the game, and
632      # so weak that their functioning should not be impacted.
633      am__obj=conftest.${OBJEXT-o}
634      am__minus_obj=
635      ;;
636    none) break ;;
637    esac
638    if depmode=$depmode \
639       source=sub/conftest.c object=$am__obj \
640       depfile=sub/conftest.Po tmpdepfile=sub/conftest.TPo \
641       $SHELL ./depcomp $depcc -c $am__minus_obj sub/conftest.c \
642         >/dev/null 2>conftest.err &&
643       grep sub/conftst1.h sub/conftest.Po > /dev/null 2>&1 &&
644       grep sub/conftst6.h sub/conftest.Po > /dev/null 2>&1 &&
645       grep $am__obj sub/conftest.Po > /dev/null 2>&1 &&
646       ${MAKE-make} -s -f confmf > /dev/null 2>&1; then
647      # icc doesn't choke on unknown options, it will just issue warnings
648      # or remarks (even with -Werror).  So we grep stderr for any message
649      # that says an option was ignored or not supported.
650      # When given -MP, icc 7.0 and 7.1 complain thusly:
651      #   icc: Command line warning: ignoring option '-M'; no argument required
652      # The diagnosis changed in icc 8.0:
653      #   icc: Command line remark: option '-MP' not supported
654      if (grep 'ignoring option' conftest.err ||
655          grep 'not supported' conftest.err) >/dev/null 2>&1; then :; else
656        am_cv_$1_dependencies_compiler_type=$depmode
657        break
658      fi
659    fi
660  done
661
662  cd ..
663  rm -rf conftest.dir
664else
665  am_cv_$1_dependencies_compiler_type=none
666fi
667])
668AC_SUBST([$1DEPMODE], [depmode=$am_cv_$1_dependencies_compiler_type])
669AM_CONDITIONAL([am__fastdep$1], [
670  test "x$enable_dependency_tracking" != xno \
671  && test "$am_cv_$1_dependencies_compiler_type" = gcc3])
672])
673
674
675# AM_SET_DEPDIR
676# -------------
677# Choose a directory name for dependency files.
678# This macro is AC_REQUIREd in _AM_DEPENDENCIES.
679AC_DEFUN([AM_SET_DEPDIR],
680[AC_REQUIRE([AM_SET_LEADING_DOT])dnl
681AC_SUBST([DEPDIR], ["${am__leading_dot}deps"])dnl
682])
683
684
685# AM_DEP_TRACK
686# ------------
687AC_DEFUN([AM_DEP_TRACK],
688[AC_ARG_ENABLE([dependency-tracking], [dnl
689AS_HELP_STRING(
690  [--enable-dependency-tracking],
691  [do not reject slow dependency extractors])
692AS_HELP_STRING(
693  [--disable-dependency-tracking],
694  [speeds up one-time build])])
695if test "x$enable_dependency_tracking" != xno; then
696  am_depcomp="$ac_aux_dir/depcomp"
697  AMDEPBACKSLASH='\'
698  am__nodep='_no'
699fi
700AM_CONDITIONAL([AMDEP], [test "x$enable_dependency_tracking" != xno])
701AC_SUBST([AMDEPBACKSLASH])dnl
702_AM_SUBST_NOTMAKE([AMDEPBACKSLASH])dnl
703AC_SUBST([am__nodep])dnl
704_AM_SUBST_NOTMAKE([am__nodep])dnl
705])
706
707# Generate code to set up dependency tracking.              -*- Autoconf -*-
708
709# Copyright (C) 1999-2017 Free Software Foundation, Inc.
710#
711# This file is free software; the Free Software Foundation
712# gives unlimited permission to copy and/or distribute it,
713# with or without modifications, as long as this notice is preserved.
714
715
716# _AM_OUTPUT_DEPENDENCY_COMMANDS
717# ------------------------------
718AC_DEFUN([_AM_OUTPUT_DEPENDENCY_COMMANDS],
719[{
720  # Older Autoconf quotes --file arguments for eval, but not when files
721  # are listed without --file.  Let's play safe and only enable the eval
722  # if we detect the quoting.
723  case $CONFIG_FILES in
724  *\'*) eval set x "$CONFIG_FILES" ;;
725  *)   set x $CONFIG_FILES ;;
726  esac
727  shift
728  for mf
729  do
730    # Strip MF so we end up with the name of the file.
731    mf=`echo "$mf" | sed -e 's/:.*$//'`
732    # Check whether this is an Automake generated Makefile or not.
733    # We used to match only the files named 'Makefile.in', but
734    # some people rename them; so instead we look at the file content.
735    # Grep'ing the first line is not enough: some people post-process
736    # each Makefile.in and add a new line on top of each file to say so.
737    # Grep'ing the whole file is not good either: AIX grep has a line
738    # limit of 2048, but all sed's we know have understand at least 4000.
739    if sed -n 's,^#.*generated by automake.*,X,p' "$mf" | grep X >/dev/null 2>&1; then
740      dirpart=`AS_DIRNAME("$mf")`
741    else
742      continue
743    fi
744    # Extract the definition of DEPDIR, am__include, and am__quote
745    # from the Makefile without running 'make'.
746    DEPDIR=`sed -n 's/^DEPDIR = //p' < "$mf"`
747    test -z "$DEPDIR" && continue
748    am__include=`sed -n 's/^am__include = //p' < "$mf"`
749    test -z "$am__include" && continue
750    am__quote=`sed -n 's/^am__quote = //p' < "$mf"`
751    # Find all dependency output files, they are included files with
752    # $(DEPDIR) in their names.  We invoke sed twice because it is the
753    # simplest approach to changing $(DEPDIR) to its actual value in the
754    # expansion.
755    for file in `sed -n "
756      s/^$am__include $am__quote\(.*(DEPDIR).*\)$am__quote"'$/\1/p' <"$mf" | \
757	 sed -e 's/\$(DEPDIR)/'"$DEPDIR"'/g'`; do
758      # Make sure the directory exists.
759      test -f "$dirpart/$file" && continue
760      fdir=`AS_DIRNAME(["$file"])`
761      AS_MKDIR_P([$dirpart/$fdir])
762      # echo "creating $dirpart/$file"
763      echo '# dummy' > "$dirpart/$file"
764    done
765  done
766}
767])# _AM_OUTPUT_DEPENDENCY_COMMANDS
768
769
770# AM_OUTPUT_DEPENDENCY_COMMANDS
771# -----------------------------
772# This macro should only be invoked once -- use via AC_REQUIRE.
773#
774# This code is only required when automatic dependency tracking
775# is enabled.  FIXME.  This creates each '.P' file that we will
776# need in order to bootstrap the dependency handling code.
777AC_DEFUN([AM_OUTPUT_DEPENDENCY_COMMANDS],
778[AC_CONFIG_COMMANDS([depfiles],
779     [test x"$AMDEP_TRUE" != x"" || _AM_OUTPUT_DEPENDENCY_COMMANDS],
780     [AMDEP_TRUE="$AMDEP_TRUE" ac_aux_dir="$ac_aux_dir"])
781])
782
783# Do all the work for Automake.                             -*- Autoconf -*-
784
785# Copyright (C) 1996-2017 Free Software Foundation, Inc.
786#
787# This file is free software; the Free Software Foundation
788# gives unlimited permission to copy and/or distribute it,
789# with or without modifications, as long as this notice is preserved.
790
791# This macro actually does too much.  Some checks are only needed if
792# your package does certain things.  But this isn't really a big deal.
793
794dnl Redefine AC_PROG_CC to automatically invoke _AM_PROG_CC_C_O.
795m4_define([AC_PROG_CC],
796m4_defn([AC_PROG_CC])
797[_AM_PROG_CC_C_O
798])
799
800# AM_INIT_AUTOMAKE(PACKAGE, VERSION, [NO-DEFINE])
801# AM_INIT_AUTOMAKE([OPTIONS])
802# -----------------------------------------------
803# The call with PACKAGE and VERSION arguments is the old style
804# call (pre autoconf-2.50), which is being phased out.  PACKAGE
805# and VERSION should now be passed to AC_INIT and removed from
806# the call to AM_INIT_AUTOMAKE.
807# We support both call styles for the transition.  After
808# the next Automake release, Autoconf can make the AC_INIT
809# arguments mandatory, and then we can depend on a new Autoconf
810# release and drop the old call support.
811AC_DEFUN([AM_INIT_AUTOMAKE],
812[AC_PREREQ([2.65])dnl
813dnl Autoconf wants to disallow AM_ names.  We explicitly allow
814dnl the ones we care about.
815m4_pattern_allow([^AM_[A-Z]+FLAGS$])dnl
816AC_REQUIRE([AM_SET_CURRENT_AUTOMAKE_VERSION])dnl
817AC_REQUIRE([AC_PROG_INSTALL])dnl
818if test "`cd $srcdir && pwd`" != "`pwd`"; then
819  # Use -I$(srcdir) only when $(srcdir) != ., so that make's output
820  # is not polluted with repeated "-I."
821  AC_SUBST([am__isrc], [' -I$(srcdir)'])_AM_SUBST_NOTMAKE([am__isrc])dnl
822  # test to see if srcdir already configured
823  if test -f $srcdir/config.status; then
824    AC_MSG_ERROR([source directory already configured; run "make distclean" there first])
825  fi
826fi
827
828# test whether we have cygpath
829if test -z "$CYGPATH_W"; then
830  if (cygpath --version) >/dev/null 2>/dev/null; then
831    CYGPATH_W='cygpath -w'
832  else
833    CYGPATH_W=echo
834  fi
835fi
836AC_SUBST([CYGPATH_W])
837
838# Define the identity of the package.
839dnl Distinguish between old-style and new-style calls.
840m4_ifval([$2],
841[AC_DIAGNOSE([obsolete],
842             [$0: two- and three-arguments forms are deprecated.])
843m4_ifval([$3], [_AM_SET_OPTION([no-define])])dnl
844 AC_SUBST([PACKAGE], [$1])dnl
845 AC_SUBST([VERSION], [$2])],
846[_AM_SET_OPTIONS([$1])dnl
847dnl Diagnose old-style AC_INIT with new-style AM_AUTOMAKE_INIT.
848m4_if(
849  m4_ifdef([AC_PACKAGE_NAME], [ok]):m4_ifdef([AC_PACKAGE_VERSION], [ok]),
850  [ok:ok],,
851  [m4_fatal([AC_INIT should be called with package and version arguments])])dnl
852 AC_SUBST([PACKAGE], ['AC_PACKAGE_TARNAME'])dnl
853 AC_SUBST([VERSION], ['AC_PACKAGE_VERSION'])])dnl
854
855_AM_IF_OPTION([no-define],,
856[AC_DEFINE_UNQUOTED([PACKAGE], ["$PACKAGE"], [Name of package])
857 AC_DEFINE_UNQUOTED([VERSION], ["$VERSION"], [Version number of package])])dnl
858
859# Some tools Automake needs.
860AC_REQUIRE([AM_SANITY_CHECK])dnl
861AC_REQUIRE([AC_ARG_PROGRAM])dnl
862AM_MISSING_PROG([ACLOCAL], [aclocal-${am__api_version}])
863AM_MISSING_PROG([AUTOCONF], [autoconf])
864AM_MISSING_PROG([AUTOMAKE], [automake-${am__api_version}])
865AM_MISSING_PROG([AUTOHEADER], [autoheader])
866AM_MISSING_PROG([MAKEINFO], [makeinfo])
867AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
868AC_REQUIRE([AM_PROG_INSTALL_STRIP])dnl
869AC_REQUIRE([AC_PROG_MKDIR_P])dnl
870# For better backward compatibility.  To be removed once Automake 1.9.x
871# dies out for good.  For more background, see:
872# <http://lists.gnu.org/archive/html/automake/2012-07/msg00001.html>
873# <http://lists.gnu.org/archive/html/automake/2012-07/msg00014.html>
874AC_SUBST([mkdir_p], ['$(MKDIR_P)'])
875# We need awk for the "check" target (and possibly the TAP driver).  The
876# system "awk" is bad on some platforms.
877AC_REQUIRE([AC_PROG_AWK])dnl
878AC_REQUIRE([AC_PROG_MAKE_SET])dnl
879AC_REQUIRE([AM_SET_LEADING_DOT])dnl
880_AM_IF_OPTION([tar-ustar], [_AM_PROG_TAR([ustar])],
881	      [_AM_IF_OPTION([tar-pax], [_AM_PROG_TAR([pax])],
882			     [_AM_PROG_TAR([v7])])])
883_AM_IF_OPTION([no-dependencies],,
884[AC_PROVIDE_IFELSE([AC_PROG_CC],
885		  [_AM_DEPENDENCIES([CC])],
886		  [m4_define([AC_PROG_CC],
887			     m4_defn([AC_PROG_CC])[_AM_DEPENDENCIES([CC])])])dnl
888AC_PROVIDE_IFELSE([AC_PROG_CXX],
889		  [_AM_DEPENDENCIES([CXX])],
890		  [m4_define([AC_PROG_CXX],
891			     m4_defn([AC_PROG_CXX])[_AM_DEPENDENCIES([CXX])])])dnl
892AC_PROVIDE_IFELSE([AC_PROG_OBJC],
893		  [_AM_DEPENDENCIES([OBJC])],
894		  [m4_define([AC_PROG_OBJC],
895			     m4_defn([AC_PROG_OBJC])[_AM_DEPENDENCIES([OBJC])])])dnl
896AC_PROVIDE_IFELSE([AC_PROG_OBJCXX],
897		  [_AM_DEPENDENCIES([OBJCXX])],
898		  [m4_define([AC_PROG_OBJCXX],
899			     m4_defn([AC_PROG_OBJCXX])[_AM_DEPENDENCIES([OBJCXX])])])dnl
900])
901AC_REQUIRE([AM_SILENT_RULES])dnl
902dnl The testsuite driver may need to know about EXEEXT, so add the
903dnl 'am__EXEEXT' conditional if _AM_COMPILER_EXEEXT was seen.  This
904dnl macro is hooked onto _AC_COMPILER_EXEEXT early, see below.
905AC_CONFIG_COMMANDS_PRE(dnl
906[m4_provide_if([_AM_COMPILER_EXEEXT],
907  [AM_CONDITIONAL([am__EXEEXT], [test -n "$EXEEXT"])])])dnl
908
909# POSIX will say in a future version that running "rm -f" with no argument
910# is OK; and we want to be able to make that assumption in our Makefile
911# recipes.  So use an aggressive probe to check that the usage we want is
912# actually supported "in the wild" to an acceptable degree.
913# See automake bug#10828.
914# To make any issue more visible, cause the running configure to be aborted
915# by default if the 'rm' program in use doesn't match our expectations; the
916# user can still override this though.
917if rm -f && rm -fr && rm -rf; then : OK; else
918  cat >&2 <<'END'
919Oops!
920
921Your 'rm' program seems unable to run without file operands specified
922on the command line, even when the '-f' option is present.  This is contrary
923to the behaviour of most rm programs out there, and not conforming with
924the upcoming POSIX standard: <http://austingroupbugs.net/view.php?id=542>
925
926Please tell bug-automake@gnu.org about your system, including the value
927of your $PATH and any error possibly output before this message.  This
928can help us improve future automake versions.
929
930END
931  if test x"$ACCEPT_INFERIOR_RM_PROGRAM" = x"yes"; then
932    echo 'Configuration will proceed anyway, since you have set the' >&2
933    echo 'ACCEPT_INFERIOR_RM_PROGRAM variable to "yes"' >&2
934    echo >&2
935  else
936    cat >&2 <<'END'
937Aborting the configuration process, to ensure you take notice of the issue.
938
939You can download and install GNU coreutils to get an 'rm' implementation
940that behaves properly: <http://www.gnu.org/software/coreutils/>.
941
942If you want to complete the configuration process using your problematic
943'rm' anyway, export the environment variable ACCEPT_INFERIOR_RM_PROGRAM
944to "yes", and re-run configure.
945
946END
947    AC_MSG_ERROR([Your 'rm' program is bad, sorry.])
948  fi
949fi
950dnl The trailing newline in this macro's definition is deliberate, for
951dnl backward compatibility and to allow trailing 'dnl'-style comments
952dnl after the AM_INIT_AUTOMAKE invocation. See automake bug#16841.
953])
954
955dnl Hook into '_AC_COMPILER_EXEEXT' early to learn its expansion.  Do not
956dnl add the conditional right here, as _AC_COMPILER_EXEEXT may be further
957dnl mangled by Autoconf and run in a shell conditional statement.
958m4_define([_AC_COMPILER_EXEEXT],
959m4_defn([_AC_COMPILER_EXEEXT])[m4_provide([_AM_COMPILER_EXEEXT])])
960
961# When config.status generates a header, we must update the stamp-h file.
962# This file resides in the same directory as the config header
963# that is generated.  The stamp files are numbered to have different names.
964
965# Autoconf calls _AC_AM_CONFIG_HEADER_HOOK (when defined) in the
966# loop where config.status creates the headers, so we can generate
967# our stamp files there.
968AC_DEFUN([_AC_AM_CONFIG_HEADER_HOOK],
969[# Compute $1's index in $config_headers.
970_am_arg=$1
971_am_stamp_count=1
972for _am_header in $config_headers :; do
973  case $_am_header in
974    $_am_arg | $_am_arg:* )
975      break ;;
976    * )
977      _am_stamp_count=`expr $_am_stamp_count + 1` ;;
978  esac
979done
980echo "timestamp for $_am_arg" >`AS_DIRNAME(["$_am_arg"])`/stamp-h[]$_am_stamp_count])
981
982# Copyright (C) 2001-2017 Free Software Foundation, Inc.
983#
984# This file is free software; the Free Software Foundation
985# gives unlimited permission to copy and/or distribute it,
986# with or without modifications, as long as this notice is preserved.
987
988# AM_PROG_INSTALL_SH
989# ------------------
990# Define $install_sh.
991AC_DEFUN([AM_PROG_INSTALL_SH],
992[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
993if test x"${install_sh+set}" != xset; then
994  case $am_aux_dir in
995  *\ * | *\	*)
996    install_sh="\${SHELL} '$am_aux_dir/install-sh'" ;;
997  *)
998    install_sh="\${SHELL} $am_aux_dir/install-sh"
999  esac
1000fi
1001AC_SUBST([install_sh])])
1002
1003# Copyright (C) 2003-2017 Free Software Foundation, Inc.
1004#
1005# This file is free software; the Free Software Foundation
1006# gives unlimited permission to copy and/or distribute it,
1007# with or without modifications, as long as this notice is preserved.
1008
1009# Check whether the underlying file-system supports filenames
1010# with a leading dot.  For instance MS-DOS doesn't.
1011AC_DEFUN([AM_SET_LEADING_DOT],
1012[rm -rf .tst 2>/dev/null
1013mkdir .tst 2>/dev/null
1014if test -d .tst; then
1015  am__leading_dot=.
1016else
1017  am__leading_dot=_
1018fi
1019rmdir .tst 2>/dev/null
1020AC_SUBST([am__leading_dot])])
1021
1022# Check to see how 'make' treats includes.	            -*- Autoconf -*-
1023
1024# Copyright (C) 2001-2017 Free Software Foundation, Inc.
1025#
1026# This file is free software; the Free Software Foundation
1027# gives unlimited permission to copy and/or distribute it,
1028# with or without modifications, as long as this notice is preserved.
1029
1030# AM_MAKE_INCLUDE()
1031# -----------------
1032# Check to see how make treats includes.
1033AC_DEFUN([AM_MAKE_INCLUDE],
1034[am_make=${MAKE-make}
1035cat > confinc << 'END'
1036am__doit:
1037	@echo this is the am__doit target
1038.PHONY: am__doit
1039END
1040# If we don't find an include directive, just comment out the code.
1041AC_MSG_CHECKING([for style of include used by $am_make])
1042am__include="#"
1043am__quote=
1044_am_result=none
1045# First try GNU make style include.
1046echo "include confinc" > confmf
1047# Ignore all kinds of additional output from 'make'.
1048case `$am_make -s -f confmf 2> /dev/null` in #(
1049*the\ am__doit\ target*)
1050  am__include=include
1051  am__quote=
1052  _am_result=GNU
1053  ;;
1054esac
1055# Now try BSD make style include.
1056if test "$am__include" = "#"; then
1057   echo '.include "confinc"' > confmf
1058   case `$am_make -s -f confmf 2> /dev/null` in #(
1059   *the\ am__doit\ target*)
1060     am__include=.include
1061     am__quote="\""
1062     _am_result=BSD
1063     ;;
1064   esac
1065fi
1066AC_SUBST([am__include])
1067AC_SUBST([am__quote])
1068AC_MSG_RESULT([$_am_result])
1069rm -f confinc confmf
1070])
1071
1072# Fake the existence of programs that GNU maintainers use.  -*- Autoconf -*-
1073
1074# Copyright (C) 1997-2017 Free Software Foundation, Inc.
1075#
1076# This file is free software; the Free Software Foundation
1077# gives unlimited permission to copy and/or distribute it,
1078# with or without modifications, as long as this notice is preserved.
1079
1080# AM_MISSING_PROG(NAME, PROGRAM)
1081# ------------------------------
1082AC_DEFUN([AM_MISSING_PROG],
1083[AC_REQUIRE([AM_MISSING_HAS_RUN])
1084$1=${$1-"${am_missing_run}$2"}
1085AC_SUBST($1)])
1086
1087# AM_MISSING_HAS_RUN
1088# ------------------
1089# Define MISSING if not defined so far and test if it is modern enough.
1090# If it is, set am_missing_run to use it, otherwise, to nothing.
1091AC_DEFUN([AM_MISSING_HAS_RUN],
1092[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
1093AC_REQUIRE_AUX_FILE([missing])dnl
1094if test x"${MISSING+set}" != xset; then
1095  case $am_aux_dir in
1096  *\ * | *\	*)
1097    MISSING="\${SHELL} \"$am_aux_dir/missing\"" ;;
1098  *)
1099    MISSING="\${SHELL} $am_aux_dir/missing" ;;
1100  esac
1101fi
1102# Use eval to expand $SHELL
1103if eval "$MISSING --is-lightweight"; then
1104  am_missing_run="$MISSING "
1105else
1106  am_missing_run=
1107  AC_MSG_WARN(['missing' script is too old or missing])
1108fi
1109])
1110
1111# Helper functions for option handling.                     -*- Autoconf -*-
1112
1113# Copyright (C) 2001-2017 Free Software Foundation, Inc.
1114#
1115# This file is free software; the Free Software Foundation
1116# gives unlimited permission to copy and/or distribute it,
1117# with or without modifications, as long as this notice is preserved.
1118
1119# _AM_MANGLE_OPTION(NAME)
1120# -----------------------
1121AC_DEFUN([_AM_MANGLE_OPTION],
1122[[_AM_OPTION_]m4_bpatsubst($1, [[^a-zA-Z0-9_]], [_])])
1123
1124# _AM_SET_OPTION(NAME)
1125# --------------------
1126# Set option NAME.  Presently that only means defining a flag for this option.
1127AC_DEFUN([_AM_SET_OPTION],
1128[m4_define(_AM_MANGLE_OPTION([$1]), [1])])
1129
1130# _AM_SET_OPTIONS(OPTIONS)
1131# ------------------------
1132# OPTIONS is a space-separated list of Automake options.
1133AC_DEFUN([_AM_SET_OPTIONS],
1134[m4_foreach_w([_AM_Option], [$1], [_AM_SET_OPTION(_AM_Option)])])
1135
1136# _AM_IF_OPTION(OPTION, IF-SET, [IF-NOT-SET])
1137# -------------------------------------------
1138# Execute IF-SET if OPTION is set, IF-NOT-SET otherwise.
1139AC_DEFUN([_AM_IF_OPTION],
1140[m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])])
1141
1142# Copyright (C) 1999-2017 Free Software Foundation, Inc.
1143#
1144# This file is free software; the Free Software Foundation
1145# gives unlimited permission to copy and/or distribute it,
1146# with or without modifications, as long as this notice is preserved.
1147
1148# _AM_PROG_CC_C_O
1149# ---------------
1150# Like AC_PROG_CC_C_O, but changed for automake.  We rewrite AC_PROG_CC
1151# to automatically call this.
1152AC_DEFUN([_AM_PROG_CC_C_O],
1153[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
1154AC_REQUIRE_AUX_FILE([compile])dnl
1155AC_LANG_PUSH([C])dnl
1156AC_CACHE_CHECK(
1157  [whether $CC understands -c and -o together],
1158  [am_cv_prog_cc_c_o],
1159  [AC_LANG_CONFTEST([AC_LANG_PROGRAM([])])
1160  # Make sure it works both with $CC and with simple cc.
1161  # Following AC_PROG_CC_C_O, we do the test twice because some
1162  # compilers refuse to overwrite an existing .o file with -o,
1163  # though they will create one.
1164  am_cv_prog_cc_c_o=yes
1165  for am_i in 1 2; do
1166    if AM_RUN_LOG([$CC -c conftest.$ac_ext -o conftest2.$ac_objext]) \
1167         && test -f conftest2.$ac_objext; then
1168      : OK
1169    else
1170      am_cv_prog_cc_c_o=no
1171      break
1172    fi
1173  done
1174  rm -f core conftest*
1175  unset am_i])
1176if test "$am_cv_prog_cc_c_o" != yes; then
1177   # Losing compiler, so override with the script.
1178   # FIXME: It is wrong to rewrite CC.
1179   # But if we don't then we get into trouble of one sort or another.
1180   # A longer-term fix would be to have automake use am__CC in this case,
1181   # and then we could set am__CC="\$(top_srcdir)/compile \$(CC)"
1182   CC="$am_aux_dir/compile $CC"
1183fi
1184AC_LANG_POP([C])])
1185
1186# For backward compatibility.
1187AC_DEFUN_ONCE([AM_PROG_CC_C_O], [AC_REQUIRE([AC_PROG_CC])])
1188
1189# Copyright (C) 2001-2017 Free Software Foundation, Inc.
1190#
1191# This file is free software; the Free Software Foundation
1192# gives unlimited permission to copy and/or distribute it,
1193# with or without modifications, as long as this notice is preserved.
1194
1195# AM_RUN_LOG(COMMAND)
1196# -------------------
1197# Run COMMAND, save the exit status in ac_status, and log it.
1198# (This has been adapted from Autoconf's _AC_RUN_LOG macro.)
1199AC_DEFUN([AM_RUN_LOG],
1200[{ echo "$as_me:$LINENO: $1" >&AS_MESSAGE_LOG_FD
1201   ($1) >&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD
1202   ac_status=$?
1203   echo "$as_me:$LINENO: \$? = $ac_status" >&AS_MESSAGE_LOG_FD
1204   (exit $ac_status); }])
1205
1206# Check to make sure that the build environment is sane.    -*- Autoconf -*-
1207
1208# Copyright (C) 1996-2017 Free Software Foundation, Inc.
1209#
1210# This file is free software; the Free Software Foundation
1211# gives unlimited permission to copy and/or distribute it,
1212# with or without modifications, as long as this notice is preserved.
1213
1214# AM_SANITY_CHECK
1215# ---------------
1216AC_DEFUN([AM_SANITY_CHECK],
1217[AC_MSG_CHECKING([whether build environment is sane])
1218# Reject unsafe characters in $srcdir or the absolute working directory
1219# name.  Accept space and tab only in the latter.
1220am_lf='
1221'
1222case `pwd` in
1223  *[[\\\"\#\$\&\'\`$am_lf]]*)
1224    AC_MSG_ERROR([unsafe absolute working directory name]);;
1225esac
1226case $srcdir in
1227  *[[\\\"\#\$\&\'\`$am_lf\ \	]]*)
1228    AC_MSG_ERROR([unsafe srcdir value: '$srcdir']);;
1229esac
1230
1231# Do 'set' in a subshell so we don't clobber the current shell's
1232# arguments.  Must try -L first in case configure is actually a
1233# symlink; some systems play weird games with the mod time of symlinks
1234# (eg FreeBSD returns the mod time of the symlink's containing
1235# directory).
1236if (
1237   am_has_slept=no
1238   for am_try in 1 2; do
1239     echo "timestamp, slept: $am_has_slept" > conftest.file
1240     set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null`
1241     if test "$[*]" = "X"; then
1242	# -L didn't work.
1243	set X `ls -t "$srcdir/configure" conftest.file`
1244     fi
1245     if test "$[*]" != "X $srcdir/configure conftest.file" \
1246	&& test "$[*]" != "X conftest.file $srcdir/configure"; then
1247
1248	# If neither matched, then we have a broken ls.  This can happen
1249	# if, for instance, CONFIG_SHELL is bash and it inherits a
1250	# broken ls alias from the environment.  This has actually
1251	# happened.  Such a system could not be considered "sane".
1252	AC_MSG_ERROR([ls -t appears to fail.  Make sure there is not a broken
1253  alias in your environment])
1254     fi
1255     if test "$[2]" = conftest.file || test $am_try -eq 2; then
1256       break
1257     fi
1258     # Just in case.
1259     sleep 1
1260     am_has_slept=yes
1261   done
1262   test "$[2]" = conftest.file
1263   )
1264then
1265   # Ok.
1266   :
1267else
1268   AC_MSG_ERROR([newly created file is older than distributed files!
1269Check your system clock])
1270fi
1271AC_MSG_RESULT([yes])
1272# If we didn't sleep, we still need to ensure time stamps of config.status and
1273# generated files are strictly newer.
1274am_sleep_pid=
1275if grep 'slept: no' conftest.file >/dev/null 2>&1; then
1276  ( sleep 1 ) &
1277  am_sleep_pid=$!
1278fi
1279AC_CONFIG_COMMANDS_PRE(
1280  [AC_MSG_CHECKING([that generated files are newer than configure])
1281   if test -n "$am_sleep_pid"; then
1282     # Hide warnings about reused PIDs.
1283     wait $am_sleep_pid 2>/dev/null
1284   fi
1285   AC_MSG_RESULT([done])])
1286rm -f conftest.file
1287])
1288
1289# Copyright (C) 2009-2017 Free Software Foundation, Inc.
1290#
1291# This file is free software; the Free Software Foundation
1292# gives unlimited permission to copy and/or distribute it,
1293# with or without modifications, as long as this notice is preserved.
1294
1295# AM_SILENT_RULES([DEFAULT])
1296# --------------------------
1297# Enable less verbose build rules; with the default set to DEFAULT
1298# ("yes" being less verbose, "no" or empty being verbose).
1299AC_DEFUN([AM_SILENT_RULES],
1300[AC_ARG_ENABLE([silent-rules], [dnl
1301AS_HELP_STRING(
1302  [--enable-silent-rules],
1303  [less verbose build output (undo: "make V=1")])
1304AS_HELP_STRING(
1305  [--disable-silent-rules],
1306  [verbose build output (undo: "make V=0")])dnl
1307])
1308case $enable_silent_rules in @%:@ (((
1309  yes) AM_DEFAULT_VERBOSITY=0;;
1310   no) AM_DEFAULT_VERBOSITY=1;;
1311    *) AM_DEFAULT_VERBOSITY=m4_if([$1], [yes], [0], [1]);;
1312esac
1313dnl
1314dnl A few 'make' implementations (e.g., NonStop OS and NextStep)
1315dnl do not support nested variable expansions.
1316dnl See automake bug#9928 and bug#10237.
1317am_make=${MAKE-make}
1318AC_CACHE_CHECK([whether $am_make supports nested variables],
1319   [am_cv_make_support_nested_variables],
1320   [if AS_ECHO([['TRUE=$(BAR$(V))
1321BAR0=false
1322BAR1=true
1323V=1
1324am__doit:
1325	@$(TRUE)
1326.PHONY: am__doit']]) | $am_make -f - >/dev/null 2>&1; then
1327  am_cv_make_support_nested_variables=yes
1328else
1329  am_cv_make_support_nested_variables=no
1330fi])
1331if test $am_cv_make_support_nested_variables = yes; then
1332  dnl Using '$V' instead of '$(V)' breaks IRIX make.
1333  AM_V='$(V)'
1334  AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
1335else
1336  AM_V=$AM_DEFAULT_VERBOSITY
1337  AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY
1338fi
1339AC_SUBST([AM_V])dnl
1340AM_SUBST_NOTMAKE([AM_V])dnl
1341AC_SUBST([AM_DEFAULT_V])dnl
1342AM_SUBST_NOTMAKE([AM_DEFAULT_V])dnl
1343AC_SUBST([AM_DEFAULT_VERBOSITY])dnl
1344AM_BACKSLASH='\'
1345AC_SUBST([AM_BACKSLASH])dnl
1346_AM_SUBST_NOTMAKE([AM_BACKSLASH])dnl
1347])
1348
1349# Copyright (C) 2001-2017 Free Software Foundation, Inc.
1350#
1351# This file is free software; the Free Software Foundation
1352# gives unlimited permission to copy and/or distribute it,
1353# with or without modifications, as long as this notice is preserved.
1354
1355# AM_PROG_INSTALL_STRIP
1356# ---------------------
1357# One issue with vendor 'install' (even GNU) is that you can't
1358# specify the program used to strip binaries.  This is especially
1359# annoying in cross-compiling environments, where the build's strip
1360# is unlikely to handle the host's binaries.
1361# Fortunately install-sh will honor a STRIPPROG variable, so we
1362# always use install-sh in "make install-strip", and initialize
1363# STRIPPROG with the value of the STRIP variable (set by the user).
1364AC_DEFUN([AM_PROG_INSTALL_STRIP],
1365[AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
1366# Installed binaries are usually stripped using 'strip' when the user
1367# run "make install-strip".  However 'strip' might not be the right
1368# tool to use in cross-compilation environments, therefore Automake
1369# will honor the 'STRIP' environment variable to overrule this program.
1370dnl Don't test for $cross_compiling = yes, because it might be 'maybe'.
1371if test "$cross_compiling" != no; then
1372  AC_CHECK_TOOL([STRIP], [strip], :)
1373fi
1374INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
1375AC_SUBST([INSTALL_STRIP_PROGRAM])])
1376
1377# Copyright (C) 2006-2017 Free Software Foundation, Inc.
1378#
1379# This file is free software; the Free Software Foundation
1380# gives unlimited permission to copy and/or distribute it,
1381# with or without modifications, as long as this notice is preserved.
1382
1383# _AM_SUBST_NOTMAKE(VARIABLE)
1384# ---------------------------
1385# Prevent Automake from outputting VARIABLE = @VARIABLE@ in Makefile.in.
1386# This macro is traced by Automake.
1387AC_DEFUN([_AM_SUBST_NOTMAKE])
1388
1389# AM_SUBST_NOTMAKE(VARIABLE)
1390# --------------------------
1391# Public sister of _AM_SUBST_NOTMAKE.
1392AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE($@)])
1393
1394# Check how to create a tarball.                            -*- Autoconf -*-
1395
1396# Copyright (C) 2004-2017 Free Software Foundation, Inc.
1397#
1398# This file is free software; the Free Software Foundation
1399# gives unlimited permission to copy and/or distribute it,
1400# with or without modifications, as long as this notice is preserved.
1401
1402# _AM_PROG_TAR(FORMAT)
1403# --------------------
1404# Check how to create a tarball in format FORMAT.
1405# FORMAT should be one of 'v7', 'ustar', or 'pax'.
1406#
1407# Substitute a variable $(am__tar) that is a command
1408# writing to stdout a FORMAT-tarball containing the directory
1409# $tardir.
1410#     tardir=directory && $(am__tar) > result.tar
1411#
1412# Substitute a variable $(am__untar) that extract such
1413# a tarball read from stdin.
1414#     $(am__untar) < result.tar
1415#
1416AC_DEFUN([_AM_PROG_TAR],
1417[# Always define AMTAR for backward compatibility.  Yes, it's still used
1418# in the wild :-(  We should find a proper way to deprecate it ...
1419AC_SUBST([AMTAR], ['$${TAR-tar}'])
1420
1421# We'll loop over all known methods to create a tar archive until one works.
1422_am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none'
1423
1424m4_if([$1], [v7],
1425  [am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'],
1426
1427  [m4_case([$1],
1428    [ustar],
1429     [# The POSIX 1988 'ustar' format is defined with fixed-size fields.
1430      # There is notably a 21 bits limit for the UID and the GID.  In fact,
1431      # the 'pax' utility can hang on bigger UID/GID (see automake bug#8343
1432      # and bug#13588).
1433      am_max_uid=2097151 # 2^21 - 1
1434      am_max_gid=$am_max_uid
1435      # The $UID and $GID variables are not portable, so we need to resort
1436      # to the POSIX-mandated id(1) utility.  Errors in the 'id' calls
1437      # below are definitely unexpected, so allow the users to see them
1438      # (that is, avoid stderr redirection).
1439      am_uid=`id -u || echo unknown`
1440      am_gid=`id -g || echo unknown`
1441      AC_MSG_CHECKING([whether UID '$am_uid' is supported by ustar format])
1442      if test $am_uid -le $am_max_uid; then
1443         AC_MSG_RESULT([yes])
1444      else
1445         AC_MSG_RESULT([no])
1446         _am_tools=none
1447      fi
1448      AC_MSG_CHECKING([whether GID '$am_gid' is supported by ustar format])
1449      if test $am_gid -le $am_max_gid; then
1450         AC_MSG_RESULT([yes])
1451      else
1452        AC_MSG_RESULT([no])
1453        _am_tools=none
1454      fi],
1455
1456  [pax],
1457    [],
1458
1459  [m4_fatal([Unknown tar format])])
1460
1461  AC_MSG_CHECKING([how to create a $1 tar archive])
1462
1463  # Go ahead even if we have the value already cached.  We do so because we
1464  # need to set the values for the 'am__tar' and 'am__untar' variables.
1465  _am_tools=${am_cv_prog_tar_$1-$_am_tools}
1466
1467  for _am_tool in $_am_tools; do
1468    case $_am_tool in
1469    gnutar)
1470      for _am_tar in tar gnutar gtar; do
1471        AM_RUN_LOG([$_am_tar --version]) && break
1472      done
1473      am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"'
1474      am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"'
1475      am__untar="$_am_tar -xf -"
1476      ;;
1477    plaintar)
1478      # Must skip GNU tar: if it does not support --format= it doesn't create
1479      # ustar tarball either.
1480      (tar --version) >/dev/null 2>&1 && continue
1481      am__tar='tar chf - "$$tardir"'
1482      am__tar_='tar chf - "$tardir"'
1483      am__untar='tar xf -'
1484      ;;
1485    pax)
1486      am__tar='pax -L -x $1 -w "$$tardir"'
1487      am__tar_='pax -L -x $1 -w "$tardir"'
1488      am__untar='pax -r'
1489      ;;
1490    cpio)
1491      am__tar='find "$$tardir" -print | cpio -o -H $1 -L'
1492      am__tar_='find "$tardir" -print | cpio -o -H $1 -L'
1493      am__untar='cpio -i -H $1 -d'
1494      ;;
1495    none)
1496      am__tar=false
1497      am__tar_=false
1498      am__untar=false
1499      ;;
1500    esac
1501
1502    # If the value was cached, stop now.  We just wanted to have am__tar
1503    # and am__untar set.
1504    test -n "${am_cv_prog_tar_$1}" && break
1505
1506    # tar/untar a dummy directory, and stop if the command works.
1507    rm -rf conftest.dir
1508    mkdir conftest.dir
1509    echo GrepMe > conftest.dir/file
1510    AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar])
1511    rm -rf conftest.dir
1512    if test -s conftest.tar; then
1513      AM_RUN_LOG([$am__untar <conftest.tar])
1514      AM_RUN_LOG([cat conftest.dir/file])
1515      grep GrepMe conftest.dir/file >/dev/null 2>&1 && break
1516    fi
1517  done
1518  rm -rf conftest.dir
1519
1520  AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool])
1521  AC_MSG_RESULT([$am_cv_prog_tar_$1])])
1522
1523AC_SUBST([am__tar])
1524AC_SUBST([am__untar])
1525]) # _AM_PROG_TAR
1526
1527m4_include([m4/ax_cxx_compile_stdcxx.m4])
1528m4_include([m4/ax_cxx_compile_stdcxx_11.m4])
1529m4_include([m4/ax_gcc_func_attribute.m4])
1530m4_include([m4/dlp_fallthrough.m4])
1531m4_include([m4/libtool.m4])
1532m4_include([m4/ltoptions.m4])
1533m4_include([m4/ltsugar.m4])
1534m4_include([m4/ltversion.m4])
1535m4_include([m4/lt~obsolete.m4])
1536