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# Copyright (C) 1996-2024 Free Software Foundation, Inc.

# This file is free software; the Free Software Foundation
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# with or without modifications, as long as this notice is preserved.

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	      [_AM_IF_OPTION([tar-pax], [_AM_PROG_TAR([pax])],
			     [_AM_PROG_TAR([v7])])])
_AM_IF_OPTION([no-dependencies],,
[AC_PROVIDE_IFELSE([AC_PROG_CC],
		  [_AM_DEPENDENCIES([CC])],
		  [m4_define([AC_PROG_CC],
			     m4_defn([AC_PROG_CC])[_AM_DEPENDENCIES([CC])])])dnl
AC_PROVIDE_IFELSE([AC_PROG_CXX],
		  [_AM_DEPENDENCIES([CXX])],
		  [m4_define([AC_PROG_CXX],
			     m4_defn([AC_PROG_CXX])[_AM_DEPENDENCIES([CXX])])])dnl
AC_PROVIDE_IFELSE([AC_PROG_OBJC],
		  [_AM_DEPENDENCIES([OBJC])],
		  [m4_define([AC_PROG_OBJC],
			     m4_defn([AC_PROG_OBJC])[_AM_DEPENDENCIES([OBJC])])])dnl
AC_PROVIDE_IFELSE([AC_PROG_OBJCXX],
		  [_AM_DEPENDENCIES([OBJCXX])],
		  [m4_define([AC_PROG_OBJCXX],
			     m4_defn([AC_PROG_OBJCXX])[_AM_DEPENDENCIES([OBJCXX])])])dnl
])
# Variables for tags utilities; see am/tags.am
if test -z &quot;$CTAGS&quot;; then
  CTAGS=ctags
fi
AC_SUBST([CTAGS])
if test -z &quot;$ETAGS&quot;; then
  ETAGS=etags
fi
AC_SUBST([ETAGS])
if test -z &quot;$CSCOPE&quot;; then
  CSCOPE=cscope
fi
AC_SUBST([CSCOPE])

AC_REQUIRE([_AM_SILENT_RULES])dnl
dnl The testsuite driver may need to know about EXEEXT, so add the
dnl &#039;am__EXEEXT&#039; conditional if _AM_COMPILER_EXEEXT was seen.  This
dnl macro is hooked onto _AC_COMPILER_EXEEXT early, see below.
AC_CONFIG_COMMANDS_PRE(dnl
[m4_provide_if([_AM_COMPILER_EXEEXT],
  [AM_CONDITIONAL([am__EXEEXT], [test -n &quot;$EXEEXT&quot;])])])dnl

AC_REQUIRE([_AM_PROG_RM_F])
AC_REQUIRE([_AM_PROG_XARGS_N])

dnl The trailing newline in this macro&#039;s definition is deliberate, for
dnl backward compatibility and to allow trailing &#039;dnl&#039;-style comments
dnl after the AM_INIT_AUTOMAKE invocation. See automake bug#16841.
])

dnl Hook into &#039;_AC_COMPILER_EXEEXT&#039; early to learn its expansion.  Do not
dnl add the conditional right here, as _AC_COMPILER_EXEEXT may be further
dnl mangled by Autoconf and run in a shell conditional statement.
m4_define([_AC_COMPILER_EXEEXT],
m4_defn([_AC_COMPILER_EXEEXT])[m4_provide([_AM_COMPILER_EXEEXT])])

# When config.status generates a header, we must update the stamp-h file.
# This file resides in the same directory as the config header
# that is generated.  The stamp files are numbered to have different names.

# Autoconf calls _AC_AM_CONFIG_HEADER_HOOK (when defined) in the
# loop where config.status creates the headers, so we can generate
# our stamp files there.
AC_DEFUN([_AC_AM_CONFIG_HEADER_HOOK],
[# Compute $1&#039;s index in $config_headers.
_am_arg=$1
_am_stamp_count=1
for _am_header in $config_headers :; do
  case $_am_header in
    $_am_arg | $_am_arg:* )
      break ;;
    * )
      _am_stamp_count=`expr $_am_stamp_count + 1` ;;
  esac
done
echo &quot;timestamp for $_am_arg&quot; &gt;`AS_DIRNAME([&quot;$_am_arg&quot;])`/stamp-h[]$_am_stamp_count])

# Copyright (C) 2001-2024 Free Software Foundation, Inc.
#
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.

# AM_PROG_INSTALL_SH
# ------------------
# Define $install_sh.
AC_DEFUN([AM_PROG_INSTALL_SH],
[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
if test x&quot;${install_sh+set}&quot; != xset; then
  case $am_aux_dir in
  *\ * | *\	*)
    install_sh=&quot;\${SHELL} &#039;$am_aux_dir/install-sh&#039;&quot; ;;
  *)
    install_sh=&quot;\${SHELL} $am_aux_dir/install-sh&quot;
  esac
fi
AC_SUBST([install_sh])])

# Copyright (C) 2003-2024 Free Software Foundation, Inc.
#
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.

# Check whether the underlying file-system supports filenames
# with a leading dot.  For instance MS-DOS doesn&#039;t.
AC_DEFUN([AM_SET_LEADING_DOT],
[rm -rf .tst 2&gt;/dev/null
mkdir .tst 2&gt;/dev/null
if test -d .tst; then
  am__leading_dot=.
else
  am__leading_dot=_
fi
rmdir .tst 2&gt;/dev/null
AC_SUBST([am__leading_dot])])

# Check to see how &#039;make&#039; treats includes.	            -*- Autoconf -*-

# Copyright (C) 2001-2024 Free Software Foundation, Inc.
#
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.

# AM_MAKE_INCLUDE()
# -----------------
# Check whether make has an &#039;include&#039; directive that can support all
# the idioms we need for our automatic dependency tracking code.
AC_DEFUN([AM_MAKE_INCLUDE],
[AC_MSG_CHECKING([whether ${MAKE-make} supports the include directive])
cat &gt; confinc.mk &lt;&lt; &#039;END&#039;
am__doit:
	@echo this is the am__doit target &gt;confinc.out
.PHONY: am__doit
END
am__include=&quot;#&quot;
am__quote=
# BSD make does it like this.
echo &#039;.include &quot;confinc.mk&quot; # ignored&#039; &gt; confmf.BSD
# Other make implementations (GNU, Solaris 10, AIX) do it like this.
echo &#039;include confinc.mk # ignored&#039; &gt; confmf.GNU
_am_result=no
for s in GNU BSD; do
  AM_RUN_LOG([${MAKE-make} -f confmf.$s &amp;&amp; cat confinc.out])
  AS_CASE([$?:`cat confinc.out 2&gt;/dev/null`],
      [&#039;0:this is the am__doit target&#039;],
      [AS_CASE([$s],
          [BSD], [am__include=&#039;.include&#039; am__quote=&#039;&quot;&#039;],
          [am__include=&#039;include&#039; am__quote=&#039;&#039;])])
  if test &quot;$am__include&quot; != &quot;#&quot;; then
    _am_result=&quot;yes ($s style)&quot;
    break
  fi
done
rm -f confinc.* confmf.*
AC_MSG_RESULT([${_am_result}])
AC_SUBST([am__include])])
AC_SUBST([am__quote])])

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

# Copyright (C) 1997-2024 Free Software Foundation, Inc.
#
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.

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

# AM_MISSING_HAS_RUN
# ------------------
# Define MISSING if not defined so far and test if it is modern enough.
# If it is, set am_missing_run to use it, otherwise, to nothing.
AC_DEFUN([AM_MISSING_HAS_RUN],
[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
AC_REQUIRE_AUX_FILE([missing])dnl
if test x&quot;${MISSING+set}&quot; != xset; then
  MISSING=&quot;\${SHELL} &#039;$am_aux_dir/missing&#039;&quot;
fi
# Use eval to expand $SHELL
if eval &quot;$MISSING --is-lightweight&quot;; then
  am_missing_run=&quot;$MISSING &quot;
else
  am_missing_run=
  AC_MSG_WARN([&#039;missing&#039; script is too old or missing])
fi
])

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

# Copyright (C) 2001-2024 Free Software Foundation, Inc.
#
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.

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

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

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

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

# Copyright (C) 1999-2024 Free Software Foundation, Inc.
#
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.

# _AM_PROG_CC_C_O
# ---------------
# Like AC_PROG_CC_C_O, but changed for automake.  We rewrite AC_PROG_CC
# to automatically call this.
AC_DEFUN([_AM_PROG_CC_C_O],
[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
AC_REQUIRE_AUX_FILE([compile])dnl
AC_LANG_PUSH([C])dnl
AC_CACHE_CHECK(
  [whether $CC understands -c and -o together],
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  # Make sure it works both with $CC and with simple cc.
  # Following AC_PROG_CC_C_O, we do the test twice because some
  # compilers refuse to overwrite an existing .o file with -o,
  # though they will create one.
  am_cv_prog_cc_c_o=yes
  for am_i in 1 2; do
    if AM_RUN_LOG([$CC -c conftest.$ac_ext -o conftest2.$ac_objext]) \
         &amp;&amp; test -f conftest2.$ac_objext; then
      : OK
    else
      am_cv_prog_cc_c_o=no
      break
    fi
  done
  rm -f core conftest*
  unset am_i])
if test &quot;$am_cv_prog_cc_c_o&quot; != yes; then
   # Losing compiler, so override with the script.
   # FIXME: It is wrong to rewrite CC.
   # But if we don&#039;t then we get into trouble of one sort or another.
   # A longer-term fix would be to have automake use am__CC in this case,
   # and then we could set am__CC=&quot;\$(top_srcdir)/compile \$(CC)&quot;
   CC=&quot;$am_aux_dir/compile $CC&quot;
fi
AC_LANG_POP([C])])

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

# Copyright (C) 2022-2024 Free Software Foundation, Inc.
#
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.

# _AM_PROG_RM_F
# ---------------
# Check whether &#039;rm -f&#039; without any arguments works.
# https://bugs.gnu.org/10828
AC_DEFUN([_AM_PROG_RM_F],
[am__rm_f_notfound=
AS_IF([(rm -f &amp;&amp; rm -fr &amp;&amp; rm -rf) 2&gt;/dev/null], [], [am__rm_f_notfound=&#039;&quot;&quot;&#039;])
AC_SUBST(am__rm_f_notfound)
])

# Copyright (C) 2001-2024 Free Software Foundation, Inc.
#
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.

# AM_RUN_LOG(COMMAND)
# -------------------
# Run COMMAND, save the exit status in ac_status, and log it.
# (This has been adapted from Autoconf&#039;s _AC_RUN_LOG macro.)
AC_DEFUN([AM_RUN_LOG],
[{ echo &quot;$as_me:$LINENO: $1&quot; &gt;&amp;AS_MESSAGE_LOG_FD
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   ac_status=$?
   echo &quot;$as_me:$LINENO: \$? = $ac_status&quot; &gt;&amp;AS_MESSAGE_LOG_FD
   (exit $ac_status); }])

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

# Copyright (C) 1996-2024 Free Software Foundation, Inc.
#
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.

# _AM_SLEEP_FRACTIONAL_SECONDS
# ----------------------------
AC_DEFUN([_AM_SLEEP_FRACTIONAL_SECONDS], [dnl
AC_CACHE_CHECK([whether sleep supports fractional seconds],
               am_cv_sleep_fractional_seconds, [dnl
AS_IF([sleep 0.001 2&gt;/dev/null], [am_cv_sleep_fractional_seconds=yes],
                                 [am_cv_sleep_fractional_seconds=no])
])])

# _AM_FILESYSTEM_TIMESTAMP_RESOLUTION
# -----------------------------------
# Determine the filesystem&#039;s resolution for file modification
# timestamps.  The coarsest we know of is FAT, with a resolution
# of only two seconds, even with the most recent &quot;exFAT&quot; extensions.
# The finest (e.g. ext4 with large inodes, XFS, ZFS) is one
# nanosecond, matching clock_gettime.  However, it is probably not
# possible to delay execution of a shell script for less than one
# millisecond, due to process creation overhead and scheduling
# granularity, so we don&#039;t check for anything finer than that. (See below.)
AC_DEFUN([_AM_FILESYSTEM_TIMESTAMP_RESOLUTION], [dnl
AC_REQUIRE([_AM_SLEEP_FRACTIONAL_SECONDS])
AC_CACHE_CHECK([filesystem timestamp resolution],
               am_cv_filesystem_timestamp_resolution, [dnl
# Default to the worst case.
am_cv_filesystem_timestamp_resolution=2

# Only try to go finer than 1 sec if sleep can do it.
# Don&#039;t try 1 sec, because if 0.01 sec and 0.1 sec don&#039;t work,
# - 1 sec is not much of a win compared to 2 sec, and
# - it takes 2 seconds to perform the test whether 1 sec works.
# 
# Instead, just use the default 2s on platforms that have 1s resolution,
# accept the extra 1s delay when using $sleep in the Automake tests, in
# exchange for not incurring the 2s delay for running the test for all
# packages.
#
am_try_resolutions=
if test &quot;$am_cv_sleep_fractional_seconds&quot; = yes; then
  # Even a millisecond often causes a bunch of false positives,
  # so just try a hundredth of a second. The time saved between .001 and
  # .01 is not terribly consequential.
  am_try_resolutions=&quot;0.01 0.1 $am_try_resolutions&quot;
fi

# In order to catch current-generation FAT out, we must *modify* files
# that already exist; the *creation* timestamp is finer.  Use names
# that make ls -t sort them differently when they have equal
# timestamps than when they have distinct timestamps, keeping
# in mind that ls -t prints the *newest* file first.
rm -f conftest.ts?
: &gt; conftest.ts1
: &gt; conftest.ts2
: &gt; conftest.ts3

# Make sure ls -t actually works.  Do &#039;set&#039; in a subshell so we don&#039;t
# clobber the current shell&#039;s arguments. (Outer-level square brackets
# are removed by m4; they&#039;re present so that m4 does not expand
# &lt;dollar&gt;&lt;star&gt;; be careful, easy to get confused.)
if (
     set X `[ls -t conftest.ts[12]]` &amp;&amp;
     {
       test &quot;$[]*&quot; != &quot;X conftest.ts1 conftest.ts2&quot; ||
       test &quot;$[]*&quot; != &quot;X conftest.ts2 conftest.ts1&quot;;
     }
); then :; else
  # If neither matched, then we have a broken ls.  This can happen
  # if, for instance, CONFIG_SHELL is bash and it inherits a
  # broken ls alias from the environment.  This has actually
  # happened.  Such a system could not be considered &quot;sane&quot;.
  _AS_ECHO_UNQUOTED(
    [&quot;Bad output from ls -t: \&quot;`[ls -t conftest.ts[12]]`\&quot;&quot;],
    [AS_MESSAGE_LOG_FD])
  AC_MSG_FAILURE([ls -t produces unexpected output.
Make sure there is not a broken ls alias in your environment.])
fi

for am_try_res in $am_try_resolutions; do
  # Any one fine-grained sleep might happen to cross the boundary
  # between two values of a coarser actual resolution, but if we do
  # two fine-grained sleeps in a row, at least one of them will fall
  # entirely within a coarse interval.
  echo alpha &gt; conftest.ts1
  sleep $am_try_res
  echo beta &gt; conftest.ts2
  sleep $am_try_res
  echo gamma &gt; conftest.ts3

  # We assume that &#039;ls -t&#039; will make use of high-resolution
  # timestamps if the operating system supports them at all.
  if (set X `ls -t conftest.ts?` &amp;&amp;
      test &quot;$[]2&quot; = conftest.ts3 &amp;&amp;
      test &quot;$[]3&quot; = conftest.ts2 &amp;&amp;
      test &quot;$[]4&quot; = conftest.ts1); then
    #
    # Ok, ls -t worked. If we&#039;re at a resolution of 1 second, we&#039;re done,
    # because we don&#039;t need to test make.
    make_ok=true
    if test $am_try_res != 1; then
      # But if we&#039;ve succeeded so far with a subsecond resolution, we
      # have one more thing to check: make. It can happen that
      # everything else supports the subsecond mtimes, but make doesn&#039;t;
      # notably on macOS, which ships make 3.81 from 2006 (the last one
      # released under GPLv2). https://bugs.gnu.org/68808
      # 
      # We test $MAKE if it is defined in the environment, else &quot;make&quot;.
      # It might get overridden later, but our hope is that in practice
      # it does not matter: it is the system &quot;make&quot; which is (by far)
      # the most likely to be broken, whereas if the user overrides it,
      # probably they did so with a better, or at least not worse, make.
      # https://lists.gnu.org/archive/html/automake/2024-06/msg00051.html
      #
      # Create a Makefile (real tab character here):
      rm -f conftest.mk
      echo &#039;conftest.ts1: conftest.ts2&#039; &gt;conftest.mk
      echo &#039;	touch conftest.ts2&#039; &gt;&gt;conftest.mk
      #
      # Now, running
      #   touch conftest.ts1; touch conftest.ts2; make
      # should touch ts1 because ts2 is newer. This could happen by luck,
      # but most often, it will fail if make&#039;s support is insufficient. So
      # test for several consecutive successes.
      #
      # (We reuse conftest.ts[12] because we still want to modify existing
      # files, not create new ones, per above.)
      n=0
      make=${MAKE-make}
      until test $n -eq 3; do
        echo one &gt; conftest.ts1
        sleep $am_try_res
        echo two &gt; conftest.ts2 # ts2 should now be newer than ts1
        if $make -f conftest.mk | grep &#039;up to date&#039; &gt;/dev/null; then
          make_ok=false
          break # out of $n loop
        fi
        n=`expr $n + 1`
      done
    fi
    #
    if $make_ok; then
      # Everything we know to check worked out, so call this resolution good.
      am_cv_filesystem_timestamp_resolution=$am_try_res
      break # out of $am_try_res loop
    fi
    # Otherwise, we&#039;ll go on to check the next resolution.
  fi
done
rm -f conftest.ts?
# (end _am_filesystem_timestamp_resolution)
])])

# AM_SANITY_CHECK
# ---------------
AC_DEFUN([AM_SANITY_CHECK],
[AC_REQUIRE([_AM_FILESYSTEM_TIMESTAMP_RESOLUTION])
# This check should not be cached, as it may vary across builds of
# different projects.
AC_MSG_CHECKING([whether build environment is sane])
# Reject unsafe characters in $srcdir or the absolute working directory
# name.  Accept space and tab only in the latter.
am_lf=&#039;
&#039;
case `pwd` in
  *[[\\\&quot;\#\$\&amp;\&#039;\`$am_lf]]*)
    AC_MSG_ERROR([unsafe absolute working directory name]);;
esac
case $srcdir in
  *[[\\\&quot;\#\$\&amp;\&#039;\`$am_lf\ \	]]*)
    AC_MSG_ERROR([unsafe srcdir value: &#039;$srcdir&#039;]);;
esac

# Do &#039;set&#039; in a subshell so we don&#039;t clobber the current shell&#039;s
# arguments.  Must try -L first in case configure is actually a
# symlink; some systems play weird games with the mod time of symlinks
# (eg FreeBSD returns the mod time of the symlink&#039;s containing
# directory).
am_build_env_is_sane=no
am_has_slept=no
rm -f conftest.file
for am_try in 1 2; do
  echo &quot;timestamp, slept: $am_has_slept&quot; &gt; conftest.file
  if (
    set X `ls -Lt &quot;$srcdir/configure&quot; conftest.file 2&gt; /dev/null`
    if test &quot;$[]*&quot; = &quot;X&quot;; then
      # -L didn&#039;t work.
      set X `ls -t &quot;$srcdir/configure&quot; conftest.file`
    fi
    test &quot;$[]2&quot; = conftest.file
  ); then
    am_build_env_is_sane=yes
    break
  fi
  # Just in case.
  sleep &quot;$am_cv_filesystem_timestamp_resolution&quot;
  am_has_slept=yes
done

AC_MSG_RESULT([$am_build_env_is_sane])
if test &quot;$am_build_env_is_sane&quot; = no; then
  AC_MSG_ERROR([newly created file is older than distributed files!
Check your system clock])
fi

# If we didn&#039;t sleep, we still need to ensure time stamps of config.status and
# generated files are strictly newer.
am_sleep_pid=
AS_IF([test -e conftest.file || grep &#039;slept: no&#039; conftest.file &gt;/dev/null 2&gt;&amp;1],, [dnl
  ( sleep &quot;$am_cv_filesystem_timestamp_resolution&quot; ) &amp;
  am_sleep_pid=$!
])
AC_CONFIG_COMMANDS_PRE(
  [AC_MSG_CHECKING([that generated files are newer than configure])
   if test -n &quot;$am_sleep_pid&quot;; then
     # Hide warnings about reused PIDs.
     wait $am_sleep_pid 2&gt;/dev/null
   fi
   AC_MSG_RESULT([done])])
rm -f conftest.file
])

# Copyright (C) 2009-2024 Free Software Foundation, Inc.
#
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.

# _AM_SILENT_RULES
# ----------------
# Enable less verbose build rules support.
AC_DEFUN([_AM_SILENT_RULES],
[AM_DEFAULT_VERBOSITY=1
AC_ARG_ENABLE([silent-rules], [dnl
AS_HELP_STRING(
  [--enable-silent-rules],
  [less verbose build output (undo: &quot;make V=1&quot;)])
AS_HELP_STRING(
  [--disable-silent-rules],
  [verbose build output (undo: &quot;make V=0&quot;)])dnl
])
dnl
dnl A few &#039;make&#039; implementations (e.g., NonStop OS and NextStep)
dnl do not support nested variable expansions.
dnl See automake bug#9928 and bug#10237.
am_make=${MAKE-make}
AC_CACHE_CHECK([whether $am_make supports nested variables],
   [am_cv_make_support_nested_variables],
   [if AS_ECHO([[&#039;TRUE=$(BAR$(V))
BAR0=false
BAR1=true
V=1
am__doit:
	@$(TRUE)
.PHONY: am__doit&#039;]]) | $am_make -f - &gt;/dev/null 2&gt;&amp;1; then
  am_cv_make_support_nested_variables=yes
else
  am_cv_make_support_nested_variables=no
fi])
AC_SUBST([AM_V])dnl
AM_SUBST_NOTMAKE([AM_V])dnl
AC_SUBST([AM_DEFAULT_V])dnl
AM_SUBST_NOTMAKE([AM_DEFAULT_V])dnl
AC_SUBST([AM_DEFAULT_VERBOSITY])dnl
AM_BACKSLASH=&#039;\&#039;
AC_SUBST([AM_BACKSLASH])dnl
_AM_SUBST_NOTMAKE([AM_BACKSLASH])dnl
dnl Delay evaluation of AM_DEFAULT_VERBOSITY to the end to allow multiple calls
dnl to AM_SILENT_RULES to change the default value.
AC_CONFIG_COMMANDS_PRE([dnl
case $enable_silent_rules in @%:@ (((
  yes) AM_DEFAULT_VERBOSITY=0;;
   no) AM_DEFAULT_VERBOSITY=1;;
esac
if test $am_cv_make_support_nested_variables = yes; then
  dnl Using &#039;$V&#039; instead of &#039;$(V)&#039; breaks IRIX make.
  AM_V=&#039;$(V)&#039;
  AM_DEFAULT_V=&#039;$(AM_DEFAULT_VERBOSITY)&#039;
else
  AM_V=$AM_DEFAULT_VERBOSITY
  AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY
fi
])dnl
])

# AM_SILENT_RULES([DEFAULT])
# --------------------------
# Set the default verbosity level to DEFAULT (&quot;yes&quot; being less verbose, &quot;no&quot; or
# empty being verbose).
AC_DEFUN([AM_SILENT_RULES],
[AC_REQUIRE([_AM_SILENT_RULES])
AM_DEFAULT_VERBOSITY=m4_if([$1], [yes], [0], [1])])

# Copyright (C) 2001-2024 Free Software Foundation, Inc.
#
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.

# AM_PROG_INSTALL_STRIP
# ---------------------
# One issue with vendor &#039;install&#039; (even GNU) is that you can&#039;t
# specify the program used to strip binaries.  This is especially
# annoying in cross-compiling environments, where the build&#039;s strip
# is unlikely to handle the host&#039;s binaries.
# Fortunately install-sh will honor a STRIPPROG variable, so we
# always use install-sh in &quot;make install-strip&quot;, and initialize
# STRIPPROG with the value of the STRIP variable (set by the user).
AC_DEFUN([AM_PROG_INSTALL_STRIP],
[AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
# Installed binaries are usually stripped using &#039;strip&#039; when the user
# run &quot;make install-strip&quot;.  However &#039;strip&#039; might not be the right
# tool to use in cross-compilation environments, therefore Automake
# will honor the &#039;STRIP&#039; environment variable to overrule this program.
dnl Don&#039;t test for $cross_compiling = yes, because it might be &#039;maybe&#039;.
if test &quot;$cross_compiling&quot; != no; then
  AC_CHECK_TOOL([STRIP], [strip], :)
fi
INSTALL_STRIP_PROGRAM=&quot;\$(install_sh) -c -s&quot;
AC_SUBST([INSTALL_STRIP_PROGRAM])])

# Copyright (C) 2006-2024 Free Software Foundation, Inc.
#
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.

# _AM_SUBST_NOTMAKE(VARIABLE)
# ---------------------------
# Prevent Automake from outputting VARIABLE = @VARIABLE@ in Makefile.in.
# This macro is traced by Automake.
AC_DEFUN([_AM_SUBST_NOTMAKE])

# AM_SUBST_NOTMAKE(VARIABLE)
# --------------------------
# Public sister of _AM_SUBST_NOTMAKE.
AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE($@)])

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

# Copyright (C) 2004-2024 Free Software Foundation, Inc.
#
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.

# _AM_PROG_TAR(FORMAT)
# --------------------
# Check how to create a tarball in format FORMAT.
# FORMAT should be one of &#039;v7&#039;, &#039;ustar&#039;, or &#039;pax&#039;.
#
# Substitute a variable $(am__tar) that is a command
# writing to stdout a FORMAT-tarball containing the directory
# $tardir.
#     tardir=directory &amp;&amp; $(am__tar) &gt; result.tar
#
# Substitute a variable $(am__untar) that extract such
# a tarball read from stdin.
#     $(am__untar) &lt; result.tar
#
AC_DEFUN([_AM_PROG_TAR],
[# Always define AMTAR for backward compatibility.  Yes, it&#039;s still used
# in the wild :-(  We should find a proper way to deprecate it ...
AC_SUBST([AMTAR], [&#039;$${TAR-tar}&#039;])

# We&#039;ll loop over all known methods to create a tar archive until one works.
_am_tools=&#039;gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none&#039;

m4_if([$1], [v7],
  [am__tar=&#039;$${TAR-tar} chof - &quot;$$tardir&quot;&#039; am__untar=&#039;$${TAR-tar} xf -&#039;],

  [m4_case([$1],
    [ustar],
     [# The POSIX 1988 &#039;ustar&#039; format is defined with fixed-size fields.
      # There is notably a 21 bits limit for the UID and the GID.  In fact,
      # the &#039;pax&#039; utility can hang on bigger UID/GID (see automake bug#8343
      # and bug#13588).
      am_max_uid=2097151 # 2^21 - 1
      am_max_gid=$am_max_uid
      # The $UID and $GID variables are not portable, so we need to resort
      # to the POSIX-mandated id(1) utility.  Errors in the &#039;id&#039; calls
      # below are definitely unexpected, so allow the users to see them
      # (that is, avoid stderr redirection).
      am_uid=`id -u || echo unknown`
      am_gid=`id -g || echo unknown`
      AC_MSG_CHECKING([whether UID &#039;$am_uid&#039; is supported by ustar format])
      if test x$am_uid = xunknown; then
        AC_MSG_WARN([ancient id detected; assuming current UID is ok, but dist-ustar might not work])
      elif test $am_uid -le $am_max_uid; then
        AC_MSG_RESULT([yes])
      else
        AC_MSG_RESULT([no])
        _am_tools=none
      fi
      AC_MSG_CHECKING([whether GID &#039;$am_gid&#039; is supported by ustar format])
      if test x$gm_gid = xunknown; then
        AC_MSG_WARN([ancient id detected; assuming current GID is ok, but dist-ustar might not work])
      elif test $am_gid -le $am_max_gid; then
        AC_MSG_RESULT([yes])
      else
        AC_MSG_RESULT([no])
        _am_tools=none
      fi],

  [pax],
    [],

  [m4_fatal([Unknown tar format])])

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

  # Go ahead even if we have the value already cached.  We do so because we
  # need to set the values for the &#039;am__tar&#039; and &#039;am__untar&#039; variables.
  _am_tools=${am_cv_prog_tar_$1-$_am_tools}

  for _am_tool in $_am_tools; do
    case $_am_tool in
    gnutar)
      for _am_tar in tar gnutar gtar; do
        AM_RUN_LOG([$_am_tar --version]) &amp;&amp; break
      done
      am__tar=&quot;$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - &quot;&#039;&quot;$$tardir&quot;&#039;
      am__tar_=&quot;$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - &quot;&#039;&quot;$tardir&quot;&#039;
      am__untar=&quot;$_am_tar -xf -&quot;
      ;;
    plaintar)
      # Must skip GNU tar: if it does not support --format= it doesn&#039;t create
      # ustar tarball either.
      (tar --version) &gt;/dev/null 2&gt;&amp;1 &amp;&amp; continue
      am__tar=&#039;tar chf - &quot;$$tardir&quot;&#039;
      am__tar_=&#039;tar chf - &quot;$tardir&quot;&#039;
      am__untar=&#039;tar xf -&#039;
      ;;
    pax)
      am__tar=&#039;pax -L -x $1 -w &quot;$$tardir&quot;&#039;
      am__tar_=&#039;pax -L -x $1 -w &quot;$tardir&quot;&#039;
      am__untar=&#039;pax -r&#039;
      ;;
    cpio)
      am__tar=&#039;find &quot;$$tardir&quot; -print | cpio -o -H $1 -L&#039;
      am__tar_=&#039;find &quot;$tardir&quot; -print | cpio -o -H $1 -L&#039;
      am__untar=&#039;cpio -i -H $1 -d&#039;
      ;;
    none)
      am__tar=false
      am__tar_=false
      am__untar=false
      ;;
    esac

    # If the value was cached, stop now.  We just wanted to have am__tar
    # and am__untar set.
    test -n &quot;${am_cv_prog_tar_$1}&quot; &amp;&amp; break

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

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

AC_SUBST([am__tar])
AC_SUBST([am__untar])
]) # _AM_PROG_TAR

# Copyright (C) 2022-2024 Free Software Foundation, Inc.
#
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.

# _AM_PROG_XARGS_N
# ----------------
# Check whether &#039;xargs -n&#039; works.  It should work everywhere, so the fallback
# is not optimized at all as we never expect to use it.
AC_DEFUN([_AM_PROG_XARGS_N],
[AC_CACHE_CHECK([xargs -n works], am_cv_xargs_n_works, [dnl
AS_IF([test &quot;`echo 1 2 3 | xargs -n2 echo`&quot; = &quot;1 2
3&quot;], [am_cv_xargs_n_works=yes], [am_cv_xargs_n_works=no])])
AS_IF([test &quot;$am_cv_xargs_n_works&quot; = yes], [am__xargs_n=&#039;xargs -n&#039;], [dnl
  am__xargs_n=&#039;am__xargs_n () { shift; sed &quot;s/ /\\n/g&quot; | while read am__xargs_n_arg; do &quot;$@&quot; &quot;$am__xargs_n_arg&quot;; done; }&#039;
])dnl
AC_SUBST(am__xargs_n)
])

m4_include([m4/libtool.m4])
m4_include([m4/ltoptions.m4])
m4_include([m4/ltsugar.m4])
m4_include([m4/ltversion.m4])
m4_include([m4/lt~obsolete.m4])
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