1# generated automatically by aclocal 1.16d -*- Autoconf -*-
2
3# Copyright (C) 1996-2021 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]), [2.71],,
18[m4_warning([this file was generated for autoconf 2.71.
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# Copyright (C) 2002-2021 Free Software Foundation, Inc.
24#
25# This file is free software; the Free Software Foundation
26# gives unlimited permission to copy and/or distribute it,
27# with or without modifications, as long as this notice is preserved.
28
29# AM_AUTOMAKE_VERSION(VERSION)
30# ----------------------------
31# Automake X.Y traces this macro to ensure aclocal.m4 has been
32# generated from the m4 files accompanying Automake X.Y.
33# (This private macro should not be called outside this file.)
34AC_DEFUN([AM_AUTOMAKE_VERSION],
35[am__api_version='1.16'
36dnl Some users find AM_AUTOMAKE_VERSION and mistake it for a way to
37dnl require some minimum version.  Point them to the right macro.
38m4_if([$1], [1.16d], [],
39      [AC_FATAL([Do not call $0, use AM_INIT_AUTOMAKE([$1]).])])dnl
40])
41
42# _AM_AUTOCONF_VERSION(VERSION)
43# -----------------------------
44# aclocal traces this macro to find the Autoconf version.
45# This is a private macro too.  Using m4_define simplifies
46# the logic in aclocal, which can simply ignore this definition.
47m4_define([_AM_AUTOCONF_VERSION], [])
48
49# AM_SET_CURRENT_AUTOMAKE_VERSION
50# -------------------------------
51# Call AM_AUTOMAKE_VERSION and AM_AUTOMAKE_VERSION so they can be traced.
52# This function is AC_REQUIREd by AM_INIT_AUTOMAKE.
53AC_DEFUN([AM_SET_CURRENT_AUTOMAKE_VERSION],
54[AM_AUTOMAKE_VERSION([1.16d])dnl
55m4_ifndef([AC_AUTOCONF_VERSION],
56  [m4_copy([m4_PACKAGE_VERSION], [AC_AUTOCONF_VERSION])])dnl
57_AM_AUTOCONF_VERSION(m4_defn([AC_AUTOCONF_VERSION]))])
58
59# AM_AUX_DIR_EXPAND                                         -*- Autoconf -*-
60
61# Copyright (C) 2001-2021 Free Software Foundation, Inc.
62#
63# This file is free software; the Free Software Foundation
64# gives unlimited permission to copy and/or distribute it,
65# with or without modifications, as long as this notice is preserved.
66
67# For projects using AC_CONFIG_AUX_DIR([foo]), Autoconf sets
68# $ac_aux_dir to '$srcdir/foo'.  In other projects, it is set to
69# '$srcdir', '$srcdir/..', or '$srcdir/../..'.
70#
71# Of course, Automake must honor this variable whenever it calls a
72# tool from the auxiliary directory.  The problem is that $srcdir (and
73# therefore $ac_aux_dir as well) can be either absolute or relative,
74# depending on how configure is run.  This is pretty annoying, since
75# it makes $ac_aux_dir quite unusable in subdirectories: in the top
76# source directory, any form will work fine, but in subdirectories a
77# relative path needs to be adjusted first.
78#
79# $ac_aux_dir/missing
80#    fails when called from a subdirectory if $ac_aux_dir is relative
81# $top_srcdir/$ac_aux_dir/missing
82#    fails if $ac_aux_dir is absolute,
83#    fails when called from a subdirectory in a VPATH build with
84#          a relative $ac_aux_dir
85#
86# The reason of the latter failure is that $top_srcdir and $ac_aux_dir
87# are both prefixed by $srcdir.  In an in-source build this is usually
88# harmless because $srcdir is '.', but things will broke when you
89# start a VPATH build or use an absolute $srcdir.
90#
91# So we could use something similar to $top_srcdir/$ac_aux_dir/missing,
92# iff we strip the leading $srcdir from $ac_aux_dir.  That would be:
93#   am_aux_dir='\$(top_srcdir)/'`expr "$ac_aux_dir" : "$srcdir//*\(.*\)"`
94# and then we would define $MISSING as
95#   MISSING="\${SHELL} $am_aux_dir/missing"
96# This will work as long as MISSING is not called from configure, because
97# unfortunately $(top_srcdir) has no meaning in configure.
98# However there are other variables, like CC, which are often used in
99# configure, and could therefore not use this "fixed" $ac_aux_dir.
100#
101# Another solution, used here, is to always expand $ac_aux_dir to an
102# absolute PATH.  The drawback is that using absolute paths prevent a
103# configured tree to be moved without reconfiguration.
104
105AC_DEFUN([AM_AUX_DIR_EXPAND],
106[AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT])dnl
107# Expand $ac_aux_dir to an absolute path.
108am_aux_dir=`cd "$ac_aux_dir" && pwd`
109])
110
111# AM_CONDITIONAL                                            -*- Autoconf -*-
112
113# Copyright (C) 1997-2021 Free Software Foundation, Inc.
114#
115# This file is free software; the Free Software Foundation
116# gives unlimited permission to copy and/or distribute it,
117# with or without modifications, as long as this notice is preserved.
118
119# AM_CONDITIONAL(NAME, SHELL-CONDITION)
120# -------------------------------------
121# Define a conditional.
122AC_DEFUN([AM_CONDITIONAL],
123[AC_PREREQ([2.52])dnl
124 m4_if([$1], [TRUE],  [AC_FATAL([$0: invalid condition: $1])],
125       [$1], [FALSE], [AC_FATAL([$0: invalid condition: $1])])dnl
126AC_SUBST([$1_TRUE])dnl
127AC_SUBST([$1_FALSE])dnl
128_AM_SUBST_NOTMAKE([$1_TRUE])dnl
129_AM_SUBST_NOTMAKE([$1_FALSE])dnl
130m4_define([_AM_COND_VALUE_$1], [$2])dnl
131if $2; then
132  $1_TRUE=
133  $1_FALSE='#'
134else
135  $1_TRUE='#'
136  $1_FALSE=
137fi
138AC_CONFIG_COMMANDS_PRE(
139[if test -z "${$1_TRUE}" && test -z "${$1_FALSE}"; then
140  AC_MSG_ERROR([[conditional "$1" was never defined.
141Usually this means the macro was only invoked conditionally.]])
142fi])])
143
144# Copyright (C) 1999-2021 Free Software Foundation, Inc.
145#
146# This file is free software; the Free Software Foundation
147# gives unlimited permission to copy and/or distribute it,
148# with or without modifications, as long as this notice is preserved.
149
150
151# There are a few dirty hacks below to avoid letting 'AC_PROG_CC' be
152# written in clear, in which case automake, when reading aclocal.m4,
153# will think it sees a *use*, and therefore will trigger all it's
154# C support machinery.  Also note that it means that autoscan, seeing
155# CC etc. in the Makefile, will ask for an AC_PROG_CC use...
156
157
158# _AM_DEPENDENCIES(NAME)
159# ----------------------
160# See how the compiler implements dependency checking.
161# NAME is "CC", "CXX", "OBJC", "OBJCXX", "UPC", or "GJC".
162# We try a few techniques and use that to set a single cache variable.
163#
164# We don't AC_REQUIRE the corresponding AC_PROG_CC since the latter was
165# modified to invoke _AM_DEPENDENCIES(CC); we would have a circular
166# dependency, and given that the user is not expected to run this macro,
167# just rely on AC_PROG_CC.
168AC_DEFUN([_AM_DEPENDENCIES],
169[AC_REQUIRE([AM_SET_DEPDIR])dnl
170AC_REQUIRE([AM_OUTPUT_DEPENDENCY_COMMANDS])dnl
171AC_REQUIRE([AM_MAKE_INCLUDE])dnl
172AC_REQUIRE([AM_DEP_TRACK])dnl
173
174m4_if([$1], [CC],   [depcc="$CC"   am_compiler_list=],
175      [$1], [CXX],  [depcc="$CXX"  am_compiler_list=],
176      [$1], [OBJC], [depcc="$OBJC" am_compiler_list='gcc3 gcc'],
177      [$1], [OBJCXX], [depcc="$OBJCXX" am_compiler_list='gcc3 gcc'],
178      [$1], [UPC],  [depcc="$UPC"  am_compiler_list=],
179      [$1], [GCJ],  [depcc="$GCJ"  am_compiler_list='gcc3 gcc'],
180                    [depcc="$$1"   am_compiler_list=])
181
182AC_CACHE_CHECK([dependency style of $depcc],
183               [am_cv_$1_dependencies_compiler_type],
184[if test -z "$AMDEP_TRUE" && test -f "$am_depcomp"; then
185  # We make a subdir and do the tests there.  Otherwise we can end up
186  # making bogus files that we don't know about and never remove.  For
187  # instance it was reported that on HP-UX the gcc test will end up
188  # making a dummy file named 'D' -- because '-MD' means "put the output
189  # in D".
190  rm -rf conftest.dir
191  mkdir conftest.dir
192  # Copy depcomp to subdir because otherwise we won't find it if we're
193  # using a relative directory.
194  cp "$am_depcomp" conftest.dir
195  cd conftest.dir
196  # We will build objects and dependencies in a subdirectory because
197  # it helps to detect inapplicable dependency modes.  For instance
198  # both Tru64's cc and ICC support -MD to output dependencies as a
199  # side effect of compilation, but ICC will put the dependencies in
200  # the current directory while Tru64 will put them in the object
201  # directory.
202  mkdir sub
203
204  am_cv_$1_dependencies_compiler_type=none
205  if test "$am_compiler_list" = ""; then
206     am_compiler_list=`sed -n ['s/^#*\([a-zA-Z0-9]*\))$/\1/p'] < ./depcomp`
207  fi
208  am__universal=false
209  m4_case([$1], [CC],
210    [case " $depcc " in #(
211     *\ -arch\ *\ -arch\ *) am__universal=true ;;
212     esac],
213    [CXX],
214    [case " $depcc " in #(
215     *\ -arch\ *\ -arch\ *) am__universal=true ;;
216     esac])
217
218  for depmode in $am_compiler_list; do
219    # Setup a source with many dependencies, because some compilers
220    # like to wrap large dependency lists on column 80 (with \), and
221    # we should not choose a depcomp mode which is confused by this.
222    #
223    # We need to recreate these files for each test, as the compiler may
224    # overwrite some of them when testing with obscure command lines.
225    # This happens at least with the AIX C compiler.
226    : > sub/conftest.c
227    for i in 1 2 3 4 5 6; do
228      echo '#include "conftst'$i'.h"' >> sub/conftest.c
229      # Using ": > sub/conftst$i.h" creates only sub/conftst1.h with
230      # Solaris 10 /bin/sh.
231      echo '/* dummy */' > sub/conftst$i.h
232    done
233    echo "${am__include} ${am__quote}sub/conftest.Po${am__quote}" > confmf
234
235    # We check with '-c' and '-o' for the sake of the "dashmstdout"
236    # mode.  It turns out that the SunPro C++ compiler does not properly
237    # handle '-M -o', and we need to detect this.  Also, some Intel
238    # versions had trouble with output in subdirs.
239    am__obj=sub/conftest.${OBJEXT-o}
240    am__minus_obj="-o $am__obj"
241    case $depmode in
242    gcc)
243      # This depmode causes a compiler race in universal mode.
244      test "$am__universal" = false || continue
245      ;;
246    nosideeffect)
247      # After this tag, mechanisms are not by side-effect, so they'll
248      # only be used when explicitly requested.
249      if test "x$enable_dependency_tracking" = xyes; then
250	continue
251      else
252	break
253      fi
254      ;;
255    msvc7 | msvc7msys | msvisualcpp | msvcmsys)
256      # This compiler won't grok '-c -o', but also, the minuso test has
257      # not run yet.  These depmodes are late enough in the game, and
258      # so weak that their functioning should not be impacted.
259      am__obj=conftest.${OBJEXT-o}
260      am__minus_obj=
261      ;;
262    none) break ;;
263    esac
264    if depmode=$depmode \
265       source=sub/conftest.c object=$am__obj \
266       depfile=sub/conftest.Po tmpdepfile=sub/conftest.TPo \
267       $SHELL ./depcomp $depcc -c $am__minus_obj sub/conftest.c \
268         >/dev/null 2>conftest.err &&
269       grep sub/conftst1.h sub/conftest.Po > /dev/null 2>&1 &&
270       grep sub/conftst6.h sub/conftest.Po > /dev/null 2>&1 &&
271       grep $am__obj sub/conftest.Po > /dev/null 2>&1 &&
272       ${MAKE-make} -s -f confmf > /dev/null 2>&1; then
273      # icc doesn't choke on unknown options, it will just issue warnings
274      # or remarks (even with -Werror).  So we grep stderr for any message
275      # that says an option was ignored or not supported.
276      # When given -MP, icc 7.0 and 7.1 complain thusly:
277      #   icc: Command line warning: ignoring option '-M'; no argument required
278      # The diagnosis changed in icc 8.0:
279      #   icc: Command line remark: option '-MP' not supported
280      if (grep 'ignoring option' conftest.err ||
281          grep 'not supported' conftest.err) >/dev/null 2>&1; then :; else
282        am_cv_$1_dependencies_compiler_type=$depmode
283        break
284      fi
285    fi
286  done
287
288  cd ..
289  rm -rf conftest.dir
290else
291  am_cv_$1_dependencies_compiler_type=none
292fi
293])
294AC_SUBST([$1DEPMODE], [depmode=$am_cv_$1_dependencies_compiler_type])
295AM_CONDITIONAL([am__fastdep$1], [
296  test "x$enable_dependency_tracking" != xno \
297  && test "$am_cv_$1_dependencies_compiler_type" = gcc3])
298])
299
300
301# AM_SET_DEPDIR
302# -------------
303# Choose a directory name for dependency files.
304# This macro is AC_REQUIREd in _AM_DEPENDENCIES.
305AC_DEFUN([AM_SET_DEPDIR],
306[AC_REQUIRE([AM_SET_LEADING_DOT])dnl
307AC_SUBST([DEPDIR], ["${am__leading_dot}deps"])dnl
308])
309
310
311# AM_DEP_TRACK
312# ------------
313AC_DEFUN([AM_DEP_TRACK],
314[AC_ARG_ENABLE([dependency-tracking], [dnl
315AS_HELP_STRING(
316  [--enable-dependency-tracking],
317  [do not reject slow dependency extractors])
318AS_HELP_STRING(
319  [--disable-dependency-tracking],
320  [speeds up one-time build])])
321if test "x$enable_dependency_tracking" != xno; then
322  am_depcomp="$ac_aux_dir/depcomp"
323  AMDEPBACKSLASH='\'
324  am__nodep='_no'
325fi
326AM_CONDITIONAL([AMDEP], [test "x$enable_dependency_tracking" != xno])
327AC_SUBST([AMDEPBACKSLASH])dnl
328_AM_SUBST_NOTMAKE([AMDEPBACKSLASH])dnl
329AC_SUBST([am__nodep])dnl
330_AM_SUBST_NOTMAKE([am__nodep])dnl
331])
332
333# Generate code to set up dependency tracking.              -*- Autoconf -*-
334
335# Copyright (C) 1999-2021 Free Software Foundation, Inc.
336#
337# This file is free software; the Free Software Foundation
338# gives unlimited permission to copy and/or distribute it,
339# with or without modifications, as long as this notice is preserved.
340
341# _AM_OUTPUT_DEPENDENCY_COMMANDS
342# ------------------------------
343AC_DEFUN([_AM_OUTPUT_DEPENDENCY_COMMANDS],
344[{
345  # Older Autoconf quotes --file arguments for eval, but not when files
346  # are listed without --file.  Let's play safe and only enable the eval
347  # if we detect the quoting.
348  # TODO: see whether this extra hack can be removed once we start
349  # requiring Autoconf 2.70 or later.
350  AS_CASE([$CONFIG_FILES],
351          [*\'*], [eval set x "$CONFIG_FILES"],
352          [*], [set x $CONFIG_FILES])
353  shift
354  # Used to flag and report bootstrapping failures.
355  am_rc=0
356  for am_mf
357  do
358    # Strip MF so we end up with the name of the file.
359    am_mf=`AS_ECHO(["$am_mf"]) | sed -e 's/:.*$//'`
360    # Check whether this is an Automake generated Makefile which includes
361    # dependency-tracking related rules and includes.
362    # Grep'ing the whole file directly is not great: AIX grep has a line
363    # limit of 2048, but all sed's we know have understand at least 4000.
364    sed -n 's,^am--depfiles:.*,X,p' "$am_mf" | grep X >/dev/null 2>&1 \
365      || continue
366    am_dirpart=`AS_DIRNAME(["$am_mf"])`
367    am_filepart=`AS_BASENAME(["$am_mf"])`
368    AM_RUN_LOG([cd "$am_dirpart" \
369      && sed -e '/# am--include-marker/d' "$am_filepart" \
370        | $MAKE -f - am--depfiles]) || am_rc=$?
371  done
372  if test $am_rc -ne 0; then
373    AC_MSG_FAILURE([Something went wrong bootstrapping makefile fragments
374    for automatic dependency tracking.  If GNU make was not used, consider
375    re-running the configure script with MAKE="gmake" (or whatever is
376    necessary).  You can also try re-running configure with the
377    '--disable-dependency-tracking' option to at least be able to build
378    the package (albeit without support for automatic dependency tracking).])
379  fi
380  AS_UNSET([am_dirpart])
381  AS_UNSET([am_filepart])
382  AS_UNSET([am_mf])
383  AS_UNSET([am_rc])
384  rm -f conftest-deps.mk
385}
386])# _AM_OUTPUT_DEPENDENCY_COMMANDS
387
388
389# AM_OUTPUT_DEPENDENCY_COMMANDS
390# -----------------------------
391# This macro should only be invoked once -- use via AC_REQUIRE.
392#
393# This code is only required when automatic dependency tracking is enabled.
394# This creates each '.Po' and '.Plo' makefile fragment that we'll need in
395# order to bootstrap the dependency handling code.
396AC_DEFUN([AM_OUTPUT_DEPENDENCY_COMMANDS],
397[AC_CONFIG_COMMANDS([depfiles],
398     [test x"$AMDEP_TRUE" != x"" || _AM_OUTPUT_DEPENDENCY_COMMANDS],
399     [AMDEP_TRUE="$AMDEP_TRUE" MAKE="${MAKE-make}"])])
400
401# Do all the work for Automake.                             -*- Autoconf -*-
402
403# Copyright (C) 1996-2021 Free Software Foundation, Inc.
404#
405# This file is free software; the Free Software Foundation
406# gives unlimited permission to copy and/or distribute it,
407# with or without modifications, as long as this notice is preserved.
408
409# This macro actually does too much.  Some checks are only needed if
410# your package does certain things.  But this isn't really a big deal.
411
412dnl Redefine AC_PROG_CC to automatically invoke _AM_PROG_CC_C_O.
413m4_define([AC_PROG_CC],
414m4_defn([AC_PROG_CC])
415[_AM_PROG_CC_C_O
416])
417
418# AM_INIT_AUTOMAKE(PACKAGE, VERSION, [NO-DEFINE])
419# AM_INIT_AUTOMAKE([OPTIONS])
420# -----------------------------------------------
421# The call with PACKAGE and VERSION arguments is the old style
422# call (pre autoconf-2.50), which is being phased out.  PACKAGE
423# and VERSION should now be passed to AC_INIT and removed from
424# the call to AM_INIT_AUTOMAKE.
425# We support both call styles for the transition.  After
426# the next Automake release, Autoconf can make the AC_INIT
427# arguments mandatory, and then we can depend on a new Autoconf
428# release and drop the old call support.
429AC_DEFUN([AM_INIT_AUTOMAKE],
430[AC_PREREQ([2.65])dnl
431dnl Autoconf wants to disallow AM_ names.  We explicitly allow
432dnl the ones we care about.
433m4_pattern_allow([^AM_[A-Z]+FLAGS$])dnl
434AC_REQUIRE([AM_SET_CURRENT_AUTOMAKE_VERSION])dnl
435AC_REQUIRE([AC_PROG_INSTALL])dnl
436if test "`cd $srcdir && pwd`" != "`pwd`"; then
437  # Use -I$(srcdir) only when $(srcdir) != ., so that make's output
438  # is not polluted with repeated "-I."
439  AC_SUBST([am__isrc], [' -I$(srcdir)'])_AM_SUBST_NOTMAKE([am__isrc])dnl
440  # test to see if srcdir already configured
441  if test -f $srcdir/config.status; then
442    AC_MSG_ERROR([source directory already configured; run "make distclean" there first])
443  fi
444fi
445
446# test whether we have cygpath
447if test -z "$CYGPATH_W"; then
448  if (cygpath --version) >/dev/null 2>/dev/null; then
449    CYGPATH_W='cygpath -w'
450  else
451    CYGPATH_W=echo
452  fi
453fi
454AC_SUBST([CYGPATH_W])
455
456# Define the identity of the package.
457dnl Distinguish between old-style and new-style calls.
458m4_ifval([$2],
459[AC_DIAGNOSE([obsolete],
460             [$0: two- and three-arguments forms are deprecated.])
461m4_ifval([$3], [_AM_SET_OPTION([no-define])])dnl
462 AC_SUBST([PACKAGE], [$1])dnl
463 AC_SUBST([VERSION], [$2])],
464[_AM_SET_OPTIONS([$1])dnl
465dnl Diagnose old-style AC_INIT with new-style AM_AUTOMAKE_INIT.
466m4_if(
467  m4_ifset([AC_PACKAGE_NAME], [ok]):m4_ifset([AC_PACKAGE_VERSION], [ok]),
468  [ok:ok],,
469  [m4_fatal([AC_INIT should be called with package and version arguments])])dnl
470 AC_SUBST([PACKAGE], ['AC_PACKAGE_TARNAME'])dnl
471 AC_SUBST([VERSION], ['AC_PACKAGE_VERSION'])])dnl
472
473_AM_IF_OPTION([no-define],,
474[AC_DEFINE_UNQUOTED([PACKAGE], ["$PACKAGE"], [Name of package])
475 AC_DEFINE_UNQUOTED([VERSION], ["$VERSION"], [Version number of package])])dnl
476
477# Some tools Automake needs.
478AC_REQUIRE([AM_SANITY_CHECK])dnl
479AC_REQUIRE([AC_ARG_PROGRAM])dnl
480AM_MISSING_PROG([ACLOCAL], [aclocal-${am__api_version}])
481AM_MISSING_PROG([AUTOCONF], [autoconf])
482AM_MISSING_PROG([AUTOMAKE], [automake-${am__api_version}])
483AM_MISSING_PROG([AUTOHEADER], [autoheader])
484AM_MISSING_PROG([MAKEINFO], [makeinfo])
485AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
486AC_REQUIRE([AM_PROG_INSTALL_STRIP])dnl
487AC_REQUIRE([AC_PROG_MKDIR_P])dnl
488# For better backward compatibility.  To be removed once Automake 1.9.x
489# dies out for good.  For more background, see:
490# <https://lists.gnu.org/archive/html/automake/2012-07/msg00001.html>
491# <https://lists.gnu.org/archive/html/automake/2012-07/msg00014.html>
492AC_SUBST([mkdir_p], ['$(MKDIR_P)'])
493# We need awk for the "check" target (and possibly the TAP driver).  The
494# system "awk" is bad on some platforms.
495AC_REQUIRE([AC_PROG_AWK])dnl
496AC_REQUIRE([AC_PROG_MAKE_SET])dnl
497AC_REQUIRE([AM_SET_LEADING_DOT])dnl
498_AM_IF_OPTION([tar-ustar], [_AM_PROG_TAR([ustar])],
499	      [_AM_IF_OPTION([tar-pax], [_AM_PROG_TAR([pax])],
500			     [_AM_PROG_TAR([v7])])])
501_AM_IF_OPTION([no-dependencies],,
502[AC_PROVIDE_IFELSE([AC_PROG_CC],
503		  [_AM_DEPENDENCIES([CC])],
504		  [m4_define([AC_PROG_CC],
505			     m4_defn([AC_PROG_CC])[_AM_DEPENDENCIES([CC])])])dnl
506AC_PROVIDE_IFELSE([AC_PROG_CXX],
507		  [_AM_DEPENDENCIES([CXX])],
508		  [m4_define([AC_PROG_CXX],
509			     m4_defn([AC_PROG_CXX])[_AM_DEPENDENCIES([CXX])])])dnl
510AC_PROVIDE_IFELSE([AC_PROG_OBJC],
511		  [_AM_DEPENDENCIES([OBJC])],
512		  [m4_define([AC_PROG_OBJC],
513			     m4_defn([AC_PROG_OBJC])[_AM_DEPENDENCIES([OBJC])])])dnl
514AC_PROVIDE_IFELSE([AC_PROG_OBJCXX],
515		  [_AM_DEPENDENCIES([OBJCXX])],
516		  [m4_define([AC_PROG_OBJCXX],
517			     m4_defn([AC_PROG_OBJCXX])[_AM_DEPENDENCIES([OBJCXX])])])dnl
518])
519# Variables for tags utilities; see am/tags.am
520if test -z "$CTAGS"; then
521  CTAGS=ctags
522fi
523AC_SUBST([CTAGS])
524if test -z "$ETAGS"; then
525  ETAGS=etags
526fi
527AC_SUBST([ETAGS])
528if test -z "$CSCOPE"; then
529  CSCOPE=cscope
530fi
531AC_SUBST([CSCOPE])
532
533AC_REQUIRE([AM_SILENT_RULES])dnl
534dnl The testsuite driver may need to know about EXEEXT, so add the
535dnl 'am__EXEEXT' conditional if _AM_COMPILER_EXEEXT was seen.  This
536dnl macro is hooked onto _AC_COMPILER_EXEEXT early, see below.
537AC_CONFIG_COMMANDS_PRE(dnl
538[m4_provide_if([_AM_COMPILER_EXEEXT],
539  [AM_CONDITIONAL([am__EXEEXT], [test -n "$EXEEXT"])])])dnl
540
541# POSIX will say in a future version that running "rm -f" with no argument
542# is OK; and we want to be able to make that assumption in our Makefile
543# recipes.  So use an aggressive probe to check that the usage we want is
544# actually supported "in the wild" to an acceptable degree.
545# See automake bug#10828.
546# To make any issue more visible, cause the running configure to be aborted
547# by default if the 'rm' program in use doesn't match our expectations; the
548# user can still override this though.
549if rm -f && rm -fr && rm -rf; then : OK; else
550  cat >&2 <<'END'
551Oops!
552
553Your 'rm' program seems unable to run without file operands specified
554on the command line, even when the '-f' option is present.  This is contrary
555to the behaviour of most rm programs out there, and not conforming with
556the upcoming POSIX standard: <http://austingroupbugs.net/view.php?id=542>
557
558Please tell bug-automake@gnu.org about your system, including the value
559of your $PATH and any error possibly output before this message.  This
560can help us improve future automake versions.
561
562END
563  if test x"$ACCEPT_INFERIOR_RM_PROGRAM" = x"yes"; then
564    echo 'Configuration will proceed anyway, since you have set the' >&2
565    echo 'ACCEPT_INFERIOR_RM_PROGRAM variable to "yes"' >&2
566    echo >&2
567  else
568    cat >&2 <<'END'
569Aborting the configuration process, to ensure you take notice of the issue.
570
571You can download and install GNU coreutils to get an 'rm' implementation
572that behaves properly: <https://www.gnu.org/software/coreutils/>.
573
574If you want to complete the configuration process using your problematic
575'rm' anyway, export the environment variable ACCEPT_INFERIOR_RM_PROGRAM
576to "yes", and re-run configure.
577
578END
579    AC_MSG_ERROR([Your 'rm' program is bad, sorry.])
580  fi
581fi
582dnl The trailing newline in this macro's definition is deliberate, for
583dnl backward compatibility and to allow trailing 'dnl'-style comments
584dnl after the AM_INIT_AUTOMAKE invocation. See automake bug#16841.
585])
586
587dnl Hook into '_AC_COMPILER_EXEEXT' early to learn its expansion.  Do not
588dnl add the conditional right here, as _AC_COMPILER_EXEEXT may be further
589dnl mangled by Autoconf and run in a shell conditional statement.
590m4_define([_AC_COMPILER_EXEEXT],
591m4_defn([_AC_COMPILER_EXEEXT])[m4_provide([_AM_COMPILER_EXEEXT])])
592
593# When config.status generates a header, we must update the stamp-h file.
594# This file resides in the same directory as the config header
595# that is generated.  The stamp files are numbered to have different names.
596
597# Autoconf calls _AC_AM_CONFIG_HEADER_HOOK (when defined) in the
598# loop where config.status creates the headers, so we can generate
599# our stamp files there.
600AC_DEFUN([_AC_AM_CONFIG_HEADER_HOOK],
601[# Compute $1's index in $config_headers.
602_am_arg=$1
603_am_stamp_count=1
604for _am_header in $config_headers :; do
605  case $_am_header in
606    $_am_arg | $_am_arg:* )
607      break ;;
608    * )
609      _am_stamp_count=`expr $_am_stamp_count + 1` ;;
610  esac
611done
612echo "timestamp for $_am_arg" >`AS_DIRNAME(["$_am_arg"])`/stamp-h[]$_am_stamp_count])
613
614# Copyright (C) 2001-2021 Free Software Foundation, Inc.
615#
616# This file is free software; the Free Software Foundation
617# gives unlimited permission to copy and/or distribute it,
618# with or without modifications, as long as this notice is preserved.
619
620# AM_PROG_INSTALL_SH
621# ------------------
622# Define $install_sh.
623AC_DEFUN([AM_PROG_INSTALL_SH],
624[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
625if test x"${install_sh+set}" != xset; then
626  case $am_aux_dir in
627  *\ * | *\	*)
628    install_sh="\${SHELL} '$am_aux_dir/install-sh'" ;;
629  *)
630    install_sh="\${SHELL} $am_aux_dir/install-sh"
631  esac
632fi
633AC_SUBST([install_sh])])
634
635# Copyright (C) 2003-2021 Free Software Foundation, Inc.
636#
637# This file is free software; the Free Software Foundation
638# gives unlimited permission to copy and/or distribute it,
639# with or without modifications, as long as this notice is preserved.
640
641# Check whether the underlying file-system supports filenames
642# with a leading dot.  For instance MS-DOS doesn't.
643AC_DEFUN([AM_SET_LEADING_DOT],
644[rm -rf .tst 2>/dev/null
645mkdir .tst 2>/dev/null
646if test -d .tst; then
647  am__leading_dot=.
648else
649  am__leading_dot=_
650fi
651rmdir .tst 2>/dev/null
652AC_SUBST([am__leading_dot])])
653
654# Check to see how 'make' treats includes.	            -*- Autoconf -*-
655
656# Copyright (C) 2001-2021 Free Software Foundation, Inc.
657#
658# This file is free software; the Free Software Foundation
659# gives unlimited permission to copy and/or distribute it,
660# with or without modifications, as long as this notice is preserved.
661
662# AM_MAKE_INCLUDE()
663# -----------------
664# Check whether make has an 'include' directive that can support all
665# the idioms we need for our automatic dependency tracking code.
666AC_DEFUN([AM_MAKE_INCLUDE],
667[AC_MSG_CHECKING([whether ${MAKE-make} supports the include directive])
668cat > confinc.mk << 'END'
669am__doit:
670	@echo this is the am__doit target >confinc.out
671.PHONY: am__doit
672END
673am__include="#"
674am__quote=
675# BSD make does it like this.
676echo '.include "confinc.mk" # ignored' > confmf.BSD
677# Other make implementations (GNU, Solaris 10, AIX) do it like this.
678echo 'include confinc.mk # ignored' > confmf.GNU
679_am_result=no
680for s in GNU BSD; do
681  AM_RUN_LOG([${MAKE-make} -f confmf.$s && cat confinc.out])
682  AS_CASE([$?:`cat confinc.out 2>/dev/null`],
683      ['0:this is the am__doit target'],
684      [AS_CASE([$s],
685          [BSD], [am__include='.include' am__quote='"'],
686          [am__include='include' am__quote=''])])
687  if test "$am__include" != "#"; then
688    _am_result="yes ($s style)"
689    break
690  fi
691done
692rm -f confinc.* confmf.*
693AC_MSG_RESULT([${_am_result}])
694AC_SUBST([am__include])])
695AC_SUBST([am__quote])])
696
697# Fake the existence of programs that GNU maintainers use.  -*- Autoconf -*-
698
699# Copyright (C) 1997-2021 Free Software Foundation, Inc.
700#
701# This file is free software; the Free Software Foundation
702# gives unlimited permission to copy and/or distribute it,
703# with or without modifications, as long as this notice is preserved.
704
705# AM_MISSING_PROG(NAME, PROGRAM)
706# ------------------------------
707AC_DEFUN([AM_MISSING_PROG],
708[AC_REQUIRE([AM_MISSING_HAS_RUN])
709$1=${$1-"${am_missing_run}$2"}
710AC_SUBST($1)])
711
712# AM_MISSING_HAS_RUN
713# ------------------
714# Define MISSING if not defined so far and test if it is modern enough.
715# If it is, set am_missing_run to use it, otherwise, to nothing.
716AC_DEFUN([AM_MISSING_HAS_RUN],
717[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
718AC_REQUIRE_AUX_FILE([missing])dnl
719if test x"${MISSING+set}" != xset; then
720  MISSING="\${SHELL} '$am_aux_dir/missing'"
721fi
722# Use eval to expand $SHELL
723if eval "$MISSING --is-lightweight"; then
724  am_missing_run="$MISSING "
725else
726  am_missing_run=
727  AC_MSG_WARN(['missing' script is too old or missing])
728fi
729])
730
731# Helper functions for option handling.                     -*- Autoconf -*-
732
733# Copyright (C) 2001-2021 Free Software Foundation, Inc.
734#
735# This file is free software; the Free Software Foundation
736# gives unlimited permission to copy and/or distribute it,
737# with or without modifications, as long as this notice is preserved.
738
739# _AM_MANGLE_OPTION(NAME)
740# -----------------------
741AC_DEFUN([_AM_MANGLE_OPTION],
742[[_AM_OPTION_]m4_bpatsubst($1, [[^a-zA-Z0-9_]], [_])])
743
744# _AM_SET_OPTION(NAME)
745# --------------------
746# Set option NAME.  Presently that only means defining a flag for this option.
747AC_DEFUN([_AM_SET_OPTION],
748[m4_define(_AM_MANGLE_OPTION([$1]), [1])])
749
750# _AM_SET_OPTIONS(OPTIONS)
751# ------------------------
752# OPTIONS is a space-separated list of Automake options.
753AC_DEFUN([_AM_SET_OPTIONS],
754[m4_foreach_w([_AM_Option], [$1], [_AM_SET_OPTION(_AM_Option)])])
755
756# _AM_IF_OPTION(OPTION, IF-SET, [IF-NOT-SET])
757# -------------------------------------------
758# Execute IF-SET if OPTION is set, IF-NOT-SET otherwise.
759AC_DEFUN([_AM_IF_OPTION],
760[m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])])
761
762# Copyright (C) 1999-2021 Free Software Foundation, Inc.
763#
764# This file is free software; the Free Software Foundation
765# gives unlimited permission to copy and/or distribute it,
766# with or without modifications, as long as this notice is preserved.
767
768# _AM_PROG_CC_C_O
769# ---------------
770# Like AC_PROG_CC_C_O, but changed for automake.  We rewrite AC_PROG_CC
771# to automatically call this.
772AC_DEFUN([_AM_PROG_CC_C_O],
773[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
774AC_REQUIRE_AUX_FILE([compile])dnl
775AC_LANG_PUSH([C])dnl
776AC_CACHE_CHECK(
777  [whether $CC understands -c and -o together],
778  [am_cv_prog_cc_c_o],
779  [AC_LANG_CONFTEST([AC_LANG_PROGRAM([])])
780  # Make sure it works both with $CC and with simple cc.
781  # Following AC_PROG_CC_C_O, we do the test twice because some
782  # compilers refuse to overwrite an existing .o file with -o,
783  # though they will create one.
784  am_cv_prog_cc_c_o=yes
785  for am_i in 1 2; do
786    if AM_RUN_LOG([$CC -c conftest.$ac_ext -o conftest2.$ac_objext]) \
787         && test -f conftest2.$ac_objext; then
788      : OK
789    else
790      am_cv_prog_cc_c_o=no
791      break
792    fi
793  done
794  rm -f core conftest*
795  unset am_i])
796if test "$am_cv_prog_cc_c_o" != yes; then
797   # Losing compiler, so override with the script.
798   # FIXME: It is wrong to rewrite CC.
799   # But if we don't then we get into trouble of one sort or another.
800   # A longer-term fix would be to have automake use am__CC in this case,
801   # and then we could set am__CC="\$(top_srcdir)/compile \$(CC)"
802   CC="$am_aux_dir/compile $CC"
803fi
804AC_LANG_POP([C])])
805
806# For backward compatibility.
807AC_DEFUN_ONCE([AM_PROG_CC_C_O], [AC_REQUIRE([AC_PROG_CC])])
808
809# Copyright (C) 2001-2021 Free Software Foundation, Inc.
810#
811# This file is free software; the Free Software Foundation
812# gives unlimited permission to copy and/or distribute it,
813# with or without modifications, as long as this notice is preserved.
814
815# AM_RUN_LOG(COMMAND)
816# -------------------
817# Run COMMAND, save the exit status in ac_status, and log it.
818# (This has been adapted from Autoconf's _AC_RUN_LOG macro.)
819AC_DEFUN([AM_RUN_LOG],
820[{ echo "$as_me:$LINENO: $1" >&AS_MESSAGE_LOG_FD
821   ($1) >&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD
822   ac_status=$?
823   echo "$as_me:$LINENO: \$? = $ac_status" >&AS_MESSAGE_LOG_FD
824   (exit $ac_status); }])
825
826# Check to make sure that the build environment is sane.    -*- Autoconf -*-
827
828# Copyright (C) 1996-2021 Free Software Foundation, Inc.
829#
830# This file is free software; the Free Software Foundation
831# gives unlimited permission to copy and/or distribute it,
832# with or without modifications, as long as this notice is preserved.
833
834# AM_SANITY_CHECK
835# ---------------
836AC_DEFUN([AM_SANITY_CHECK],
837[AC_MSG_CHECKING([whether build environment is sane])
838# Reject unsafe characters in $srcdir or the absolute working directory
839# name.  Accept space and tab only in the latter.
840am_lf='
841'
842case `pwd` in
843  *[[\\\"\#\$\&\'\`$am_lf]]*)
844    AC_MSG_ERROR([unsafe absolute working directory name]);;
845esac
846case $srcdir in
847  *[[\\\"\#\$\&\'\`$am_lf\ \	]]*)
848    AC_MSG_ERROR([unsafe srcdir value: '$srcdir']);;
849esac
850
851# Do 'set' in a subshell so we don't clobber the current shell's
852# arguments.  Must try -L first in case configure is actually a
853# symlink; some systems play weird games with the mod time of symlinks
854# (eg FreeBSD returns the mod time of the symlink's containing
855# directory).
856if (
857   am_has_slept=no
858   for am_try in 1 2; do
859     echo "timestamp, slept: $am_has_slept" > conftest.file
860     set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null`
861     if test "$[*]" = "X"; then
862	# -L didn't work.
863	set X `ls -t "$srcdir/configure" conftest.file`
864     fi
865     if test "$[*]" != "X $srcdir/configure conftest.file" \
866	&& test "$[*]" != "X conftest.file $srcdir/configure"; then
867
868	# If neither matched, then we have a broken ls.  This can happen
869	# if, for instance, CONFIG_SHELL is bash and it inherits a
870	# broken ls alias from the environment.  This has actually
871	# happened.  Such a system could not be considered "sane".
872	AC_MSG_ERROR([ls -t appears to fail.  Make sure there is not a broken
873  alias in your environment])
874     fi
875     if test "$[2]" = conftest.file || test $am_try -eq 2; then
876       break
877     fi
878     # Just in case.
879     sleep 1
880     am_has_slept=yes
881   done
882   test "$[2]" = conftest.file
883   )
884then
885   # Ok.
886   :
887else
888   AC_MSG_ERROR([newly created file is older than distributed files!
889Check your system clock])
890fi
891AC_MSG_RESULT([yes])
892# If we didn't sleep, we still need to ensure time stamps of config.status and
893# generated files are strictly newer.
894am_sleep_pid=
895if grep 'slept: no' conftest.file >/dev/null 2>&1; then
896  ( sleep 1 ) &
897  am_sleep_pid=$!
898fi
899AC_CONFIG_COMMANDS_PRE(
900  [AC_MSG_CHECKING([that generated files are newer than configure])
901   if test -n "$am_sleep_pid"; then
902     # Hide warnings about reused PIDs.
903     wait $am_sleep_pid 2>/dev/null
904   fi
905   AC_MSG_RESULT([done])])
906rm -f conftest.file
907])
908
909# Copyright (C) 2009-2021 Free Software Foundation, Inc.
910#
911# This file is free software; the Free Software Foundation
912# gives unlimited permission to copy and/or distribute it,
913# with or without modifications, as long as this notice is preserved.
914
915# AM_SILENT_RULES([DEFAULT])
916# --------------------------
917# Enable less verbose build rules; with the default set to DEFAULT
918# ("yes" being less verbose, "no" or empty being verbose).
919AC_DEFUN([AM_SILENT_RULES],
920[AC_ARG_ENABLE([silent-rules], [dnl
921AS_HELP_STRING(
922  [--enable-silent-rules],
923  [less verbose build output (undo: "make V=1")])
924AS_HELP_STRING(
925  [--disable-silent-rules],
926  [verbose build output (undo: "make V=0")])dnl
927])
928case $enable_silent_rules in @%:@ (((
929  yes) AM_DEFAULT_VERBOSITY=0;;
930   no) AM_DEFAULT_VERBOSITY=1;;
931    *) AM_DEFAULT_VERBOSITY=m4_if([$1], [yes], [0], [1]);;
932esac
933dnl
934dnl A few 'make' implementations (e.g., NonStop OS and NextStep)
935dnl do not support nested variable expansions.
936dnl See automake bug#9928 and bug#10237.
937am_make=${MAKE-make}
938AC_CACHE_CHECK([whether $am_make supports nested variables],
939   [am_cv_make_support_nested_variables],
940   [if AS_ECHO([['TRUE=$(BAR$(V))
941BAR0=false
942BAR1=true
943V=1
944am__doit:
945	@$(TRUE)
946.PHONY: am__doit']]) | $am_make -f - >/dev/null 2>&1; then
947  am_cv_make_support_nested_variables=yes
948else
949  am_cv_make_support_nested_variables=no
950fi])
951if test $am_cv_make_support_nested_variables = yes; then
952  dnl Using '$V' instead of '$(V)' breaks IRIX make.
953  AM_V='$(V)'
954  AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
955else
956  AM_V=$AM_DEFAULT_VERBOSITY
957  AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY
958fi
959AC_SUBST([AM_V])dnl
960AM_SUBST_NOTMAKE([AM_V])dnl
961AC_SUBST([AM_DEFAULT_V])dnl
962AM_SUBST_NOTMAKE([AM_DEFAULT_V])dnl
963AC_SUBST([AM_DEFAULT_VERBOSITY])dnl
964AM_BACKSLASH='\'
965AC_SUBST([AM_BACKSLASH])dnl
966_AM_SUBST_NOTMAKE([AM_BACKSLASH])dnl
967])
968
969# Copyright (C) 2001-2021 Free Software Foundation, Inc.
970#
971# This file is free software; the Free Software Foundation
972# gives unlimited permission to copy and/or distribute it,
973# with or without modifications, as long as this notice is preserved.
974
975# AM_PROG_INSTALL_STRIP
976# ---------------------
977# One issue with vendor 'install' (even GNU) is that you can't
978# specify the program used to strip binaries.  This is especially
979# annoying in cross-compiling environments, where the build's strip
980# is unlikely to handle the host's binaries.
981# Fortunately install-sh will honor a STRIPPROG variable, so we
982# always use install-sh in "make install-strip", and initialize
983# STRIPPROG with the value of the STRIP variable (set by the user).
984AC_DEFUN([AM_PROG_INSTALL_STRIP],
985[AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
986# Installed binaries are usually stripped using 'strip' when the user
987# run "make install-strip".  However 'strip' might not be the right
988# tool to use in cross-compilation environments, therefore Automake
989# will honor the 'STRIP' environment variable to overrule this program.
990dnl Don't test for $cross_compiling = yes, because it might be 'maybe'.
991if test "$cross_compiling" != no; then
992  AC_CHECK_TOOL([STRIP], [strip], :)
993fi
994INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
995AC_SUBST([INSTALL_STRIP_PROGRAM])])
996
997# Copyright (C) 2006-2021 Free Software Foundation, Inc.
998#
999# This file is free software; the Free Software Foundation
1000# gives unlimited permission to copy and/or distribute it,
1001# with or without modifications, as long as this notice is preserved.
1002
1003# _AM_SUBST_NOTMAKE(VARIABLE)
1004# ---------------------------
1005# Prevent Automake from outputting VARIABLE = @VARIABLE@ in Makefile.in.
1006# This macro is traced by Automake.
1007AC_DEFUN([_AM_SUBST_NOTMAKE])
1008
1009# AM_SUBST_NOTMAKE(VARIABLE)
1010# --------------------------
1011# Public sister of _AM_SUBST_NOTMAKE.
1012AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE($@)])
1013
1014# Check how to create a tarball.                            -*- Autoconf -*-
1015
1016# Copyright (C) 2004-2021 Free Software Foundation, Inc.
1017#
1018# This file is free software; the Free Software Foundation
1019# gives unlimited permission to copy and/or distribute it,
1020# with or without modifications, as long as this notice is preserved.
1021
1022# _AM_PROG_TAR(FORMAT)
1023# --------------------
1024# Check how to create a tarball in format FORMAT.
1025# FORMAT should be one of 'v7', 'ustar', or 'pax'.
1026#
1027# Substitute a variable $(am__tar) that is a command
1028# writing to stdout a FORMAT-tarball containing the directory
1029# $tardir.
1030#     tardir=directory && $(am__tar) > result.tar
1031#
1032# Substitute a variable $(am__untar) that extract such
1033# a tarball read from stdin.
1034#     $(am__untar) < result.tar
1035#
1036AC_DEFUN([_AM_PROG_TAR],
1037[# Always define AMTAR for backward compatibility.  Yes, it's still used
1038# in the wild :-(  We should find a proper way to deprecate it ...
1039AC_SUBST([AMTAR], ['$${TAR-tar}'])
1040
1041# We'll loop over all known methods to create a tar archive until one works.
1042_am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none'
1043
1044m4_if([$1], [v7],
1045  [am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'],
1046
1047  [m4_case([$1],
1048    [ustar],
1049     [# The POSIX 1988 'ustar' format is defined with fixed-size fields.
1050      # There is notably a 21 bits limit for the UID and the GID.  In fact,
1051      # the 'pax' utility can hang on bigger UID/GID (see automake bug#8343
1052      # and bug#13588).
1053      am_max_uid=2097151 # 2^21 - 1
1054      am_max_gid=$am_max_uid
1055      # The $UID and $GID variables are not portable, so we need to resort
1056      # to the POSIX-mandated id(1) utility.  Errors in the 'id' calls
1057      # below are definitely unexpected, so allow the users to see them
1058      # (that is, avoid stderr redirection).
1059      am_uid=`id -u || echo unknown`
1060      am_gid=`id -g || echo unknown`
1061      AC_MSG_CHECKING([whether UID '$am_uid' is supported by ustar format])
1062      if test $am_uid -le $am_max_uid; then
1063         AC_MSG_RESULT([yes])
1064      else
1065         AC_MSG_RESULT([no])
1066         _am_tools=none
1067      fi
1068      AC_MSG_CHECKING([whether GID '$am_gid' is supported by ustar format])
1069      if test $am_gid -le $am_max_gid; then
1070         AC_MSG_RESULT([yes])
1071      else
1072        AC_MSG_RESULT([no])
1073        _am_tools=none
1074      fi],
1075
1076  [pax],
1077    [],
1078
1079  [m4_fatal([Unknown tar format])])
1080
1081  AC_MSG_CHECKING([how to create a $1 tar archive])
1082
1083  # Go ahead even if we have the value already cached.  We do so because we
1084  # need to set the values for the 'am__tar' and 'am__untar' variables.
1085  _am_tools=${am_cv_prog_tar_$1-$_am_tools}
1086
1087  for _am_tool in $_am_tools; do
1088    case $_am_tool in
1089    gnutar)
1090      for _am_tar in tar gnutar gtar; do
1091        AM_RUN_LOG([$_am_tar --version]) && break
1092      done
1093      am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"'
1094      am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"'
1095      am__untar="$_am_tar -xf -"
1096      ;;
1097    plaintar)
1098      # Must skip GNU tar: if it does not support --format= it doesn't create
1099      # ustar tarball either.
1100      (tar --version) >/dev/null 2>&1 && continue
1101      am__tar='tar chf - "$$tardir"'
1102      am__tar_='tar chf - "$tardir"'
1103      am__untar='tar xf -'
1104      ;;
1105    pax)
1106      am__tar='pax -L -x $1 -w "$$tardir"'
1107      am__tar_='pax -L -x $1 -w "$tardir"'
1108      am__untar='pax -r'
1109      ;;
1110    cpio)
1111      am__tar='find "$$tardir" -print | cpio -o -H $1 -L'
1112      am__tar_='find "$tardir" -print | cpio -o -H $1 -L'
1113      am__untar='cpio -i -H $1 -d'
1114      ;;
1115    none)
1116      am__tar=false
1117      am__tar_=false
1118      am__untar=false
1119      ;;
1120    esac
1121
1122    # If the value was cached, stop now.  We just wanted to have am__tar
1123    # and am__untar set.
1124    test -n "${am_cv_prog_tar_$1}" && break
1125
1126    # tar/untar a dummy directory, and stop if the command works.
1127    rm -rf conftest.dir
1128    mkdir conftest.dir
1129    echo GrepMe > conftest.dir/file
1130    AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar])
1131    rm -rf conftest.dir
1132    if test -s conftest.tar; then
1133      AM_RUN_LOG([$am__untar <conftest.tar])
1134      AM_RUN_LOG([cat conftest.dir/file])
1135      grep GrepMe conftest.dir/file >/dev/null 2>&1 && break
1136    fi
1137  done
1138  rm -rf conftest.dir
1139
1140  AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool])
1141  AC_MSG_RESULT([$am_cv_prog_tar_$1])])
1142
1143AC_SUBST([am__tar])
1144AC_SUBST([am__untar])
1145]) # _AM_PROG_TAR
1146
1147m4_include([m4/00gnulib.m4])
1148m4_include([m4/__inline.m4])
1149m4_include([m4/absolute-header.m4])
1150m4_include([m4/alloca.m4])
1151m4_include([m4/arpa_inet_h.m4])
1152m4_include([m4/asm-underscore.m4])
1153m4_include([m4/atoll.m4])
1154m4_include([m4/btowc.m4])
1155m4_include([m4/builtin-expect.m4])
1156m4_include([m4/c-stack.m4])
1157m4_include([m4/calloc.m4])
1158m4_include([m4/clock_time.m4])
1159m4_include([m4/close.m4])
1160m4_include([m4/codeset.m4])
1161m4_include([m4/config-h.m4])
1162m4_include([m4/ctype_h.m4])
1163m4_include([m4/double-slash-root.m4])
1164m4_include([m4/dup2.m4])
1165m4_include([m4/eealloc.m4])
1166m4_include([m4/environ.m4])
1167m4_include([m4/errno_h.m4])
1168m4_include([m4/error.m4])
1169m4_include([m4/exponentd.m4])
1170m4_include([m4/extensions.m4])
1171m4_include([m4/extern-inline.m4])
1172m4_include([m4/fcntl-o.m4])
1173m4_include([m4/fcntl.m4])
1174m4_include([m4/fcntl_h.m4])
1175m4_include([m4/fdopen.m4])
1176m4_include([m4/filenamecat.m4])
1177m4_include([m4/flexmember.m4])
1178m4_include([m4/float_h.m4])
1179m4_include([m4/fnmatch.m4])
1180m4_include([m4/fnmatch_h.m4])
1181m4_include([m4/fopen.m4])
1182m4_include([m4/fpieee.m4])
1183m4_include([m4/free.m4])
1184m4_include([m4/freopen.m4])
1185m4_include([m4/fstat.m4])
1186m4_include([m4/ftruncate.m4])
1187m4_include([m4/getcwd.m4])
1188m4_include([m4/getdtablesize.m4])
1189m4_include([m4/getopt.m4])
1190m4_include([m4/getpagesize.m4])
1191m4_include([m4/getprogname.m4])
1192m4_include([m4/getrandom.m4])
1193m4_include([m4/gettext.m4])
1194m4_include([m4/gettime.m4])
1195m4_include([m4/gettimeofday.m4])
1196m4_include([m4/gnu-make.m4])
1197m4_include([m4/gnulib-common.m4])
1198m4_include([m4/gnulib-comp.m4])
1199m4_include([m4/host-cpu-c-abi.m4])
1200m4_include([m4/iconv.m4])
1201m4_include([m4/iconv_h.m4])
1202m4_include([m4/iconv_open.m4])
1203m4_include([m4/include_next.m4])
1204m4_include([m4/inet_pton.m4])
1205m4_include([m4/inline.m4])
1206m4_include([m4/intlmacosx.m4])
1207m4_include([m4/intmax_t.m4])
1208m4_include([m4/inttostr.m4])
1209m4_include([m4/inttypes.m4])
1210m4_include([m4/inttypes_h.m4])
1211m4_include([m4/ioctl.m4])
1212m4_include([m4/isblank.m4])
1213m4_include([m4/iswblank.m4])
1214m4_include([m4/iswdigit.m4])
1215m4_include([m4/iswxdigit.m4])
1216m4_include([m4/langinfo_h.m4])
1217m4_include([m4/largefile.m4])
1218m4_include([m4/lib-ld.m4])
1219m4_include([m4/lib-link.m4])
1220m4_include([m4/lib-prefix.m4])
1221m4_include([m4/libsigsegv.m4])
1222m4_include([m4/libunistring-base.m4])
1223m4_include([m4/limits-h.m4])
1224m4_include([m4/localcharset.m4])
1225m4_include([m4/locale-fr.m4])
1226m4_include([m4/locale-ja.m4])
1227m4_include([m4/locale-tr.m4])
1228m4_include([m4/locale-zh.m4])
1229m4_include([m4/locale_h.m4])
1230m4_include([m4/localeconv.m4])
1231m4_include([m4/lock.m4])
1232m4_include([m4/lstat.m4])
1233m4_include([m4/malloc.m4])
1234m4_include([m4/malloca.m4])
1235m4_include([m4/manywarnings.m4])
1236m4_include([m4/mbchar.m4])
1237m4_include([m4/mbiter.m4])
1238m4_include([m4/mbrtowc.m4])
1239m4_include([m4/mbsinit.m4])
1240m4_include([m4/mbslen.m4])
1241m4_include([m4/mbsrtowcs.m4])
1242m4_include([m4/mbstate_t.m4])
1243m4_include([m4/mbtowc.m4])
1244m4_include([m4/memchr.m4])
1245m4_include([m4/mempcpy.m4])
1246m4_include([m4/minmax.m4])
1247m4_include([m4/mkdir.m4])
1248m4_include([m4/mkstemp.m4])
1249m4_include([m4/mktime.m4])
1250m4_include([m4/mmap-anon.m4])
1251m4_include([m4/mode_t.m4])
1252m4_include([m4/msvc-inval.m4])
1253m4_include([m4/msvc-nothrow.m4])
1254m4_include([m4/multiarch.m4])
1255m4_include([m4/musl.m4])
1256m4_include([m4/nanosleep.m4])
1257m4_include([m4/netinet_in_h.m4])
1258m4_include([m4/nl_langinfo.m4])
1259m4_include([m4/nls.m4])
1260m4_include([m4/nocrash.m4])
1261m4_include([m4/nstrftime.m4])
1262m4_include([m4/off_t.m4])
1263m4_include([m4/open-cloexec.m4])
1264m4_include([m4/open-slash.m4])
1265m4_include([m4/open.m4])
1266m4_include([m4/pathmax.m4])
1267m4_include([m4/perror.m4])
1268m4_include([m4/pipe.m4])
1269m4_include([m4/po.m4])
1270m4_include([m4/printf.m4])
1271m4_include([m4/progtest.m4])
1272m4_include([m4/pthread-thread.m4])
1273m4_include([m4/pthread_h.m4])
1274m4_include([m4/pthread_rwlock_rdlock.m4])
1275m4_include([m4/pthread_sigmask.m4])
1276m4_include([m4/putenv.m4])
1277m4_include([m4/quote.m4])
1278m4_include([m4/quotearg.m4])
1279m4_include([m4/raise.m4])
1280m4_include([m4/rawmemchr.m4])
1281m4_include([m4/readlink.m4])
1282m4_include([m4/realloc.m4])
1283m4_include([m4/reallocarray.m4])
1284m4_include([m4/regex.m4])
1285m4_include([m4/sched_h.m4])
1286m4_include([m4/select.m4])
1287m4_include([m4/setenv.m4])
1288m4_include([m4/setlocale_null.m4])
1289m4_include([m4/sigaction.m4])
1290m4_include([m4/sigaltstack.m4])
1291m4_include([m4/signal_h.m4])
1292m4_include([m4/signalblocking.m4])
1293m4_include([m4/size_max.m4])
1294m4_include([m4/sleep.m4])
1295m4_include([m4/snprintf.m4])
1296m4_include([m4/socketlib.m4])
1297m4_include([m4/sockets.m4])
1298m4_include([m4/socklen.m4])
1299m4_include([m4/sockpfaf.m4])
1300m4_include([m4/ssize_t.m4])
1301m4_include([m4/stack-direction.m4])
1302m4_include([m4/stat-time.m4])
1303m4_include([m4/stat.m4])
1304m4_include([m4/stdalign.m4])
1305m4_include([m4/stdarg.m4])
1306m4_include([m4/stdbool.m4])
1307m4_include([m4/stddef_h.m4])
1308m4_include([m4/stdint.m4])
1309m4_include([m4/stdint_h.m4])
1310m4_include([m4/stdio_h.m4])
1311m4_include([m4/stdlib_h.m4])
1312m4_include([m4/strcase.m4])
1313m4_include([m4/strerror.m4])
1314m4_include([m4/strerror_r.m4])
1315m4_include([m4/string_h.m4])
1316m4_include([m4/strings_h.m4])
1317m4_include([m4/strnlen.m4])
1318m4_include([m4/strptime.m4])
1319m4_include([m4/strtoimax.m4])
1320m4_include([m4/strtoll.m4])
1321m4_include([m4/symlink.m4])
1322m4_include([m4/sys_ioctl_h.m4])
1323m4_include([m4/sys_random_h.m4])
1324m4_include([m4/sys_select_h.m4])
1325m4_include([m4/sys_socket_h.m4])
1326m4_include([m4/sys_stat_h.m4])
1327m4_include([m4/sys_time_h.m4])
1328m4_include([m4/sys_types_h.m4])
1329m4_include([m4/sys_uio_h.m4])
1330m4_include([m4/sys_wait_h.m4])
1331m4_include([m4/tempname.m4])
1332m4_include([m4/thread.m4])
1333m4_include([m4/threadlib.m4])
1334m4_include([m4/time_h.m4])
1335m4_include([m4/time_r.m4])
1336m4_include([m4/time_rz.m4])
1337m4_include([m4/timegm.m4])
1338m4_include([m4/timespec.m4])
1339m4_include([m4/tm_gmtoff.m4])
1340m4_include([m4/tzset.m4])
1341m4_include([m4/unistd_h.m4])
1342m4_include([m4/unlocked-io.m4])
1343m4_include([m4/vasnprintf.m4])
1344m4_include([m4/vasprintf.m4])
1345m4_include([m4/version-etc.m4])
1346m4_include([m4/visibility.m4])
1347m4_include([m4/warn-on-use.m4])
1348m4_include([m4/warnings.m4])
1349m4_include([m4/wchar_h.m4])
1350m4_include([m4/wchar_t.m4])
1351m4_include([m4/wcrtomb.m4])
1352m4_include([m4/wctob.m4])
1353m4_include([m4/wctomb.m4])
1354m4_include([m4/wctype_h.m4])
1355m4_include([m4/wcwidth.m4])
1356m4_include([m4/wint_t.m4])
1357m4_include([m4/wmemchr.m4])
1358m4_include([m4/wmempcpy.m4])
1359m4_include([m4/xalloc.m4])
1360m4_include([m4/xsize.m4])
1361m4_include([m4/xstrtol.m4])
1362m4_include([m4/xvasprintf.m4])
1363m4_include([m4/year2038.m4])
1364m4_include([m4/zzgnulib.m4])
1365