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      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 
     14 m4_ifndef([AC_CONFIG_MACRO_DIRS], [m4_defun([_AM_CONFIG_MACRO_DIRS], [])m4_defun([AC_CONFIG_MACRO_DIRS], [_AM_CONFIG_MACRO_DIRS($@)])])
     15 m4_ifndef([AC_AUTOCONF_VERSION],
     16   [m4_copy([m4_PACKAGE_VERSION], [AC_AUTOCONF_VERSION])])dnl
     17 m4_if(m4_defn([AC_AUTOCONF_VERSION]), [2.69],,
     18 [m4_warning([this file was generated for autoconf 2.69.
     19 You have another version of autoconf.  It may work, but is not guaranteed to.
     20 If you have problems, you may need to regenerate the build system entirely.
     21 To do so, use the procedure documented by the package, typically 'autoreconf'.])])
     22 
     23 # Copyright (C) 2002-2017 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.)
     34 AC_DEFUN([AM_AUTOMAKE_VERSION],
     35 [am__api_version='1.15'
     36 dnl Some users find AM_AUTOMAKE_VERSION and mistake it for a way to
     37 dnl require some minimum version.  Point them to the right macro.
     38 m4_if([$1], [1.15.1], [],
     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.
     47 m4_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.
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     53 AC_DEFUN([AM_SET_CURRENT_AUTOMAKE_VERSION],
     54 [AM_AUTOMAKE_VERSION([1.15.1])dnl
     55 m4_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) 2001-2017 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 
    105 AC_DEFUN([AM_AUX_DIR_EXPAND],
    106 [AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT])dnl
    107 # Expand $ac_aux_dir to an absolute path.
    108 am_aux_dir=`cd "$ac_aux_dir" && pwd`
    109 ])
    110 
    111 # AM_CONDITIONAL                                            -*- Autoconf -*-
    112 
    113 # Copyright (C) 1997-2017 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.
    122 AC_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
    126 AC_SUBST([$1_TRUE])dnl
    127 AC_SUBST([$1_FALSE])dnl
    128 _AM_SUBST_NOTMAKE([$1_TRUE])dnl
    129 _AM_SUBST_NOTMAKE([$1_FALSE])dnl
    130 m4_define([_AM_COND_VALUE_$1], [$2])dnl
    131 if $2; then
    132   $1_TRUE=
    133   $1_FALSE='#'
    134 else
    135   $1_TRUE='#'
    136   $1_FALSE=
    137 fi
    138 AC_CONFIG_COMMANDS_PRE(
    139 [if test -z "${$1_TRUE}" && test -z "${$1_FALSE}"; then
    140   AC_MSG_ERROR([[conditional "$1" was never defined.
    141 Usually this means the macro was only invoked conditionally.]])
    142 fi])])
    143 
    144 # Do all the work for Automake.                             -*- Autoconf -*-
    145 
    146 # Copyright (C) 1996-2017 Free Software Foundation, Inc.
    147 #
    148 # This file is free software; the Free Software Foundation
    149 # gives unlimited permission to copy and/or distribute it,
    150 # with or without modifications, as long as this notice is preserved.
    151 
    152 # This macro actually does too much.  Some checks are only needed if
    153 # your package does certain things.  But this isn't really a big deal.
    154 
    155 dnl Redefine AC_PROG_CC to automatically invoke _AM_PROG_CC_C_O.
    156 m4_define([AC_PROG_CC],
    157 m4_defn([AC_PROG_CC])
    158 [_AM_PROG_CC_C_O
    159 ])
    160 
    161 # AM_INIT_AUTOMAKE(PACKAGE, VERSION, [NO-DEFINE])
    162 # AM_INIT_AUTOMAKE([OPTIONS])
    163 # -----------------------------------------------
    164 # The call with PACKAGE and VERSION arguments is the old style
    165 # call (pre autoconf-2.50), which is being phased out.  PACKAGE
    166 # and VERSION should now be passed to AC_INIT and removed from
    167 # the call to AM_INIT_AUTOMAKE.
    168 # We support both call styles for the transition.  After
    169 # the next Automake release, Autoconf can make the AC_INIT
    170 # arguments mandatory, and then we can depend on a new Autoconf
    171 # release and drop the old call support.
    172 AC_DEFUN([AM_INIT_AUTOMAKE],
    173 [AC_PREREQ([2.65])dnl
    174 dnl Autoconf wants to disallow AM_ names.  We explicitly allow
    175 dnl the ones we care about.
    176 m4_pattern_allow([^AM_[A-Z]+FLAGS$])dnl
    177 AC_REQUIRE([AM_SET_CURRENT_AUTOMAKE_VERSION])dnl
    178 AC_REQUIRE([AC_PROG_INSTALL])dnl
    179 if test "`cd $srcdir && pwd`" != "`pwd`"; then
    180   # Use -I$(srcdir) only when $(srcdir) != ., so that make's output
    181   # is not polluted with repeated "-I."
    182   AC_SUBST([am__isrc], [' -I$(srcdir)'])_AM_SUBST_NOTMAKE([am__isrc])dnl
    183   # test to see if srcdir already configured
    184   if test -f $srcdir/config.status; then
    185     AC_MSG_ERROR([source directory already configured; run "make distclean" there first])
    186   fi
    187 fi
    188 
    189 # test whether we have cygpath
    190 if test -z "$CYGPATH_W"; then
    191   if (cygpath --version) >/dev/null 2>/dev/null; then
    192     CYGPATH_W='cygpath -w'
    193   else
    194     CYGPATH_W=echo
    195   fi
    196 fi
    197 AC_SUBST([CYGPATH_W])
    198 
    199 # Define the identity of the package.
    200 dnl Distinguish between old-style and new-style calls.
    201 m4_ifval([$2],
    202 [AC_DIAGNOSE([obsolete],
    203              [$0: two- and three-arguments forms are deprecated.])
    204 m4_ifval([$3], [_AM_SET_OPTION([no-define])])dnl
    205  AC_SUBST([PACKAGE], [$1])dnl
    206  AC_SUBST([VERSION], [$2])],
    207 [_AM_SET_OPTIONS([$1])dnl
    208 dnl Diagnose old-style AC_INIT with new-style AM_AUTOMAKE_INIT.
    209 m4_if(
    210   m4_ifdef([AC_PACKAGE_NAME], [ok]):m4_ifdef([AC_PACKAGE_VERSION], [ok]),
    211   [ok:ok],,
    212   [m4_fatal([AC_INIT should be called with package and version arguments])])dnl
    213  AC_SUBST([PACKAGE], ['AC_PACKAGE_TARNAME'])dnl
    214  AC_SUBST([VERSION], ['AC_PACKAGE_VERSION'])])dnl
    215 
    216 _AM_IF_OPTION([no-define],,
    217 [AC_DEFINE_UNQUOTED([PACKAGE], ["$PACKAGE"], [Name of package])
    218  AC_DEFINE_UNQUOTED([VERSION], ["$VERSION"], [Version number of package])])dnl
    219 
    220 # Some tools Automake needs.
    221 AC_REQUIRE([AM_SANITY_CHECK])dnl
    222 AC_REQUIRE([AC_ARG_PROGRAM])dnl
    223 AM_MISSING_PROG([ACLOCAL], [aclocal-${am__api_version}])
    224 AM_MISSING_PROG([AUTOCONF], [autoconf])
    225 AM_MISSING_PROG([AUTOMAKE], [automake-${am__api_version}])
    226 AM_MISSING_PROG([AUTOHEADER], [autoheader])
    227 AM_MISSING_PROG([MAKEINFO], [makeinfo])
    228 AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
    229 AC_REQUIRE([AM_PROG_INSTALL_STRIP])dnl
    230 AC_REQUIRE([AC_PROG_MKDIR_P])dnl
    231 # For better backward compatibility.  To be removed once Automake 1.9.x
    232 # dies out for good.  For more background, see:
    233 # <http://lists.gnu.org/archive/html/automake/2012-07/msg00001.html>
    234 # <http://lists.gnu.org/archive/html/automake/2012-07/msg00014.html>
    235 AC_SUBST([mkdir_p], ['$(MKDIR_P)'])
    236 # We need awk for the "check" target (and possibly the TAP driver).  The
    237 # system "awk" is bad on some platforms.
    238 AC_REQUIRE([AC_PROG_AWK])dnl
    239 AC_REQUIRE([AC_PROG_MAKE_SET])dnl
    240 AC_REQUIRE([AM_SET_LEADING_DOT])dnl
    241 _AM_IF_OPTION([tar-ustar], [_AM_PROG_TAR([ustar])],
    242 	      [_AM_IF_OPTION([tar-pax], [_AM_PROG_TAR([pax])],
    243 			     [_AM_PROG_TAR([v7])])])
    244 _AM_IF_OPTION([no-dependencies],,
    245 [AC_PROVIDE_IFELSE([AC_PROG_CC],
    246 		  [_AM_DEPENDENCIES([CC])],
    247 		  [m4_define([AC_PROG_CC],
    248 			     m4_defn([AC_PROG_CC])[_AM_DEPENDENCIES([CC])])])dnl
    249 AC_PROVIDE_IFELSE([AC_PROG_CXX],
    250 		  [_AM_DEPENDENCIES([CXX])],
    251 		  [m4_define([AC_PROG_CXX],
    252 			     m4_defn([AC_PROG_CXX])[_AM_DEPENDENCIES([CXX])])])dnl
    253 AC_PROVIDE_IFELSE([AC_PROG_OBJC],
    254 		  [_AM_DEPENDENCIES([OBJC])],
    255 		  [m4_define([AC_PROG_OBJC],
    256 			     m4_defn([AC_PROG_OBJC])[_AM_DEPENDENCIES([OBJC])])])dnl
    257 AC_PROVIDE_IFELSE([AC_PROG_OBJCXX],
    258 		  [_AM_DEPENDENCIES([OBJCXX])],
    259 		  [m4_define([AC_PROG_OBJCXX],
    260 			     m4_defn([AC_PROG_OBJCXX])[_AM_DEPENDENCIES([OBJCXX])])])dnl
    261 ])
    262 AC_REQUIRE([AM_SILENT_RULES])dnl
    263 dnl The testsuite driver may need to know about EXEEXT, so add the
    264 dnl 'am__EXEEXT' conditional if _AM_COMPILER_EXEEXT was seen.  This
    265 dnl macro is hooked onto _AC_COMPILER_EXEEXT early, see below.
    266 AC_CONFIG_COMMANDS_PRE(dnl
    267 [m4_provide_if([_AM_COMPILER_EXEEXT],
    268   [AM_CONDITIONAL([am__EXEEXT], [test -n "$EXEEXT"])])])dnl
    269 
    270 # POSIX will say in a future version that running "rm -f" with no argument
    271 # is OK; and we want to be able to make that assumption in our Makefile
    272 # recipes.  So use an aggressive probe to check that the usage we want is
    273 # actually supported "in the wild" to an acceptable degree.
    274 # See automake bug#10828.
    275 # To make any issue more visible, cause the running configure to be aborted
    276 # by default if the 'rm' program in use doesn't match our expectations; the
    277 # user can still override this though.
    278 if rm -f && rm -fr && rm -rf; then : OK; else
    279   cat >&2 <<'END'
    280 Oops!
    281 
    282 Your 'rm' program seems unable to run without file operands specified
    283 on the command line, even when the '-f' option is present.  This is contrary
    284 to the behaviour of most rm programs out there, and not conforming with
    285 the upcoming POSIX standard: <http://austingroupbugs.net/view.php?id=542>
    286 
    287 Please tell bug-automake (a] gnu.org about your system, including the value
    288 of your $PATH and any error possibly output before this message.  This
    289 can help us improve future automake versions.
    290 
    291 END
    292   if test x"$ACCEPT_INFERIOR_RM_PROGRAM" = x"yes"; then
    293     echo 'Configuration will proceed anyway, since you have set the' >&2
    294     echo 'ACCEPT_INFERIOR_RM_PROGRAM variable to "yes"' >&2
    295     echo >&2
    296   else
    297     cat >&2 <<'END'
    298 Aborting the configuration process, to ensure you take notice of the issue.
    299 
    300 You can download and install GNU coreutils to get an 'rm' implementation
    301 that behaves properly: <http://www.gnu.org/software/coreutils/>.
    302 
    303 If you want to complete the configuration process using your problematic
    304 'rm' anyway, export the environment variable ACCEPT_INFERIOR_RM_PROGRAM
    305 to "yes", and re-run configure.
    306 
    307 END
    308     AC_MSG_ERROR([Your 'rm' program is bad, sorry.])
    309   fi
    310 fi
    311 dnl The trailing newline in this macro's definition is deliberate, for
    312 dnl backward compatibility and to allow trailing 'dnl'-style comments
    313 dnl after the AM_INIT_AUTOMAKE invocation. See automake bug#16841.
    314 ])
    315 
    316 dnl Hook into '_AC_COMPILER_EXEEXT' early to learn its expansion.  Do not
    317 dnl add the conditional right here, as _AC_COMPILER_EXEEXT may be further
    318 dnl mangled by Autoconf and run in a shell conditional statement.
    319 m4_define([_AC_COMPILER_EXEEXT],
    320 m4_defn([_AC_COMPILER_EXEEXT])[m4_provide([_AM_COMPILER_EXEEXT])])
    321 
    322 # When config.status generates a header, we must update the stamp-h file.
    323 # This file resides in the same directory as the config header
    324 # that is generated.  The stamp files are numbered to have different names.
    325 
    326 # Autoconf calls _AC_AM_CONFIG_HEADER_HOOK (when defined) in the
    327 # loop where config.status creates the headers, so we can generate
    328 # our stamp files there.
    329 AC_DEFUN([_AC_AM_CONFIG_HEADER_HOOK],
    330 [# Compute $1's index in $config_headers.
    331 _am_arg=$1
    332 _am_stamp_count=1
    333 for _am_header in $config_headers :; do
    334   case $_am_header in
    335     $_am_arg | $_am_arg:* )
    336       break ;;
    337     * )
    338       _am_stamp_count=`expr $_am_stamp_count + 1` ;;
    339   esac
    340 done
    341 echo "timestamp for $_am_arg" >`AS_DIRNAME(["$_am_arg"])`/stamp-h[]$_am_stamp_count])
    342 
    343 # Copyright (C) 2001-2017 Free Software Foundation, Inc.
    344 #
    345 # This file is free software; the Free Software Foundation
    346 # gives unlimited permission to copy and/or distribute it,
    347 # with or without modifications, as long as this notice is preserved.
    348 
    349 # AM_PROG_INSTALL_SH
    350 # ------------------
    351 # Define $install_sh.
    352 AC_DEFUN([AM_PROG_INSTALL_SH],
    353 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
    354 if test x"${install_sh+set}" != xset; then
    355   case $am_aux_dir in
    356   *\ * | *\	*)
    357     install_sh="\${SHELL} '$am_aux_dir/install-sh'" ;;
    358   *)
    359     install_sh="\${SHELL} $am_aux_dir/install-sh"
    360   esac
    361 fi
    362 AC_SUBST([install_sh])])
    363 
    364 # Add --enable-maintainer-mode option to configure.         -*- Autoconf -*-
    365 # From Jim Meyering
    366 
    367 # Copyright (C) 1996-2017 Free Software Foundation, Inc.
    368 #
    369 # This file is free software; the Free Software Foundation
    370 # gives unlimited permission to copy and/or distribute it,
    371 # with or without modifications, as long as this notice is preserved.
    372 
    373 # AM_MAINTAINER_MODE([DEFAULT-MODE])
    374 # ----------------------------------
    375 # Control maintainer-specific portions of Makefiles.
    376 # Default is to disable them, unless 'enable' is passed literally.
    377 # For symmetry, 'disable' may be passed as well.  Anyway, the user
    378 # can override the default with the --enable/--disable switch.
    379 AC_DEFUN([AM_MAINTAINER_MODE],
    380 [m4_case(m4_default([$1], [disable]),
    381        [enable], [m4_define([am_maintainer_other], [disable])],
    382        [disable], [m4_define([am_maintainer_other], [enable])],
    383        [m4_define([am_maintainer_other], [enable])
    384         m4_warn([syntax], [unexpected argument to AM@&t@_MAINTAINER_MODE: $1])])
    385 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
    386   dnl maintainer-mode's default is 'disable' unless 'enable' is passed
    387   AC_ARG_ENABLE([maintainer-mode],
    388     [AS_HELP_STRING([--]am_maintainer_other[-maintainer-mode],
    389       am_maintainer_other[ make rules and dependencies not useful
    390       (and sometimes confusing) to the casual installer])],
    391     [USE_MAINTAINER_MODE=$enableval],
    392     [USE_MAINTAINER_MODE=]m4_if(am_maintainer_other, [enable], [no], [yes]))
    393   AC_MSG_RESULT([$USE_MAINTAINER_MODE])
    394   AM_CONDITIONAL([MAINTAINER_MODE], [test $USE_MAINTAINER_MODE = yes])
    395   MAINT=$MAINTAINER_MODE_TRUE
    396   AC_SUBST([MAINT])dnl
    397 ]
    398 )
    399 
    400 # Fake the existence of programs that GNU maintainers use.  -*- Autoconf -*-
    401 
    402 # Copyright (C) 1997-2017 Free Software Foundation, Inc.
    403 #
    404 # This file is free software; the Free Software Foundation
    405 # gives unlimited permission to copy and/or distribute it,
    406 # with or without modifications, as long as this notice is preserved.
    407 
    408 # AM_MISSING_PROG(NAME, PROGRAM)
    409 # ------------------------------
    410 AC_DEFUN([AM_MISSING_PROG],
    411 [AC_REQUIRE([AM_MISSING_HAS_RUN])
    412 $1=${$1-"${am_missing_run}$2"}
    413 AC_SUBST($1)])
    414 
    415 # AM_MISSING_HAS_RUN
    416 # ------------------
    417 # Define MISSING if not defined so far and test if it is modern enough.
    418 # If it is, set am_missing_run to use it, otherwise, to nothing.
    419 AC_DEFUN([AM_MISSING_HAS_RUN],
    420 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
    421 AC_REQUIRE_AUX_FILE([missing])dnl
    422 if test x"${MISSING+set}" != xset; then
    423   case $am_aux_dir in
    424   *\ * | *\	*)
    425     MISSING="\${SHELL} \"$am_aux_dir/missing\"" ;;
    426   *)
    427     MISSING="\${SHELL} $am_aux_dir/missing" ;;
    428   esac
    429 fi
    430 # Use eval to expand $SHELL
    431 if eval "$MISSING --is-lightweight"; then
    432   am_missing_run="$MISSING "
    433 else
    434   am_missing_run=
    435   AC_MSG_WARN(['missing' script is too old or missing])
    436 fi
    437 ])
    438 
    439 # Helper functions for option handling.                     -*- Autoconf -*-
    440 
    441 # Copyright (C) 2001-2017 Free Software Foundation, Inc.
    442 #
    443 # This file is free software; the Free Software Foundation
    444 # gives unlimited permission to copy and/or distribute it,
    445 # with or without modifications, as long as this notice is preserved.
    446 
    447 # _AM_MANGLE_OPTION(NAME)
    448 # -----------------------
    449 AC_DEFUN([_AM_MANGLE_OPTION],
    450 [[_AM_OPTION_]m4_bpatsubst($1, [[^a-zA-Z0-9_]], [_])])
    451 
    452 # _AM_SET_OPTION(NAME)
    453 # --------------------
    454 # Set option NAME.  Presently that only means defining a flag for this option.
    455 AC_DEFUN([_AM_SET_OPTION],
    456 [m4_define(_AM_MANGLE_OPTION([$1]), [1])])
    457 
    458 # _AM_SET_OPTIONS(OPTIONS)
    459 # ------------------------
    460 # OPTIONS is a space-separated list of Automake options.
    461 AC_DEFUN([_AM_SET_OPTIONS],
    462 [m4_foreach_w([_AM_Option], [$1], [_AM_SET_OPTION(_AM_Option)])])
    463 
    464 # _AM_IF_OPTION(OPTION, IF-SET, [IF-NOT-SET])
    465 # -------------------------------------------
    466 # Execute IF-SET if OPTION is set, IF-NOT-SET otherwise.
    467 AC_DEFUN([_AM_IF_OPTION],
    468 [m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])])
    469 
    470 # Copyright (C) 1999-2017 Free Software Foundation, Inc.
    471 #
    472 # This file is free software; the Free Software Foundation
    473 # gives unlimited permission to copy and/or distribute it,
    474 # with or without modifications, as long as this notice is preserved.
    475 
    476 # _AM_PROG_CC_C_O
    477 # ---------------
    478 # Like AC_PROG_CC_C_O, but changed for automake.  We rewrite AC_PROG_CC
    479 # to automatically call this.
    480 AC_DEFUN([_AM_PROG_CC_C_O],
    481 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
    482 AC_REQUIRE_AUX_FILE([compile])dnl
    483 AC_LANG_PUSH([C])dnl
    484 AC_CACHE_CHECK(
    485   [whether $CC understands -c and -o together],
    486   [am_cv_prog_cc_c_o],
    487   [AC_LANG_CONFTEST([AC_LANG_PROGRAM([])])
    488   # Make sure it works both with $CC and with simple cc.
    489   # Following AC_PROG_CC_C_O, we do the test twice because some
    490   # compilers refuse to overwrite an existing .o file with -o,
    491   # though they will create one.
    492   am_cv_prog_cc_c_o=yes
    493   for am_i in 1 2; do
    494     if AM_RUN_LOG([$CC -c conftest.$ac_ext -o conftest2.$ac_objext]) \
    495          && test -f conftest2.$ac_objext; then
    496       : OK
    497     else
    498       am_cv_prog_cc_c_o=no
    499       break
    500     fi
    501   done
    502   rm -f core conftest*
    503   unset am_i])
    504 if test "$am_cv_prog_cc_c_o" != yes; then
    505    # Losing compiler, so override with the script.
    506    # FIXME: It is wrong to rewrite CC.
    507    # But if we don't then we get into trouble of one sort or another.
    508    # A longer-term fix would be to have automake use am__CC in this case,
    509    # and then we could set am__CC="\$(top_srcdir)/compile \$(CC)"
    510    CC="$am_aux_dir/compile $CC"
    511 fi
    512 AC_LANG_POP([C])])
    513 
    514 # For backward compatibility.
    515 AC_DEFUN_ONCE([AM_PROG_CC_C_O], [AC_REQUIRE([AC_PROG_CC])])
    516 
    517 # Copyright (C) 2001-2017 Free Software Foundation, Inc.
    518 #
    519 # This file is free software; the Free Software Foundation
    520 # gives unlimited permission to copy and/or distribute it,
    521 # with or without modifications, as long as this notice is preserved.
    522 
    523 # AM_RUN_LOG(COMMAND)
    524 # -------------------
    525 # Run COMMAND, save the exit status in ac_status, and log it.
    526 # (This has been adapted from Autoconf's _AC_RUN_LOG macro.)
    527 AC_DEFUN([AM_RUN_LOG],
    528 [{ echo "$as_me:$LINENO: $1" >&AS_MESSAGE_LOG_FD
    529    ($1) >&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD
    530    ac_status=$?
    531    echo "$as_me:$LINENO: \$? = $ac_status" >&AS_MESSAGE_LOG_FD
    532    (exit $ac_status); }])
    533 
    534 # Check to make sure that the build environment is sane.    -*- Autoconf -*-
    535 
    536 # Copyright (C) 1996-2017 Free Software Foundation, Inc.
    537 #
    538 # This file is free software; the Free Software Foundation
    539 # gives unlimited permission to copy and/or distribute it,
    540 # with or without modifications, as long as this notice is preserved.
    541 
    542 # AM_SANITY_CHECK
    543 # ---------------
    544 AC_DEFUN([AM_SANITY_CHECK],
    545 [AC_MSG_CHECKING([whether build environment is sane])
    546 # Reject unsafe characters in $srcdir or the absolute working directory
    547 # name.  Accept space and tab only in the latter.
    548 am_lf='
    549 '
    550 case `pwd` in
    551   *[[\\\"\#\$\&\'\`$am_lf]]*)
    552     AC_MSG_ERROR([unsafe absolute working directory name]);;
    553 esac
    554 case $srcdir in
    555   *[[\\\"\#\$\&\'\`$am_lf\ \	]]*)
    556     AC_MSG_ERROR([unsafe srcdir value: '$srcdir']);;
    557 esac
    558 
    559 # Do 'set' in a subshell so we don't clobber the current shell's
    560 # arguments.  Must try -L first in case configure is actually a
    561 # symlink; some systems play weird games with the mod time of symlinks
    562 # (eg FreeBSD returns the mod time of the symlink's containing
    563 # directory).
    564 if (
    565    am_has_slept=no
    566    for am_try in 1 2; do
    567      echo "timestamp, slept: $am_has_slept" > conftest.file
    568      set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null`
    569      if test "$[*]" = "X"; then
    570 	# -L didn't work.
    571 	set X `ls -t "$srcdir/configure" conftest.file`
    572      fi
    573      if test "$[*]" != "X $srcdir/configure conftest.file" \
    574 	&& test "$[*]" != "X conftest.file $srcdir/configure"; then
    575 
    576 	# If neither matched, then we have a broken ls.  This can happen
    577 	# if, for instance, CONFIG_SHELL is bash and it inherits a
    578 	# broken ls alias from the environment.  This has actually
    579 	# happened.  Such a system could not be considered "sane".
    580 	AC_MSG_ERROR([ls -t appears to fail.  Make sure there is not a broken
    581   alias in your environment])
    582      fi
    583      if test "$[2]" = conftest.file || test $am_try -eq 2; then
    584        break
    585      fi
    586      # Just in case.
    587      sleep 1
    588      am_has_slept=yes
    589    done
    590    test "$[2]" = conftest.file
    591    )
    592 then
    593    # Ok.
    594    :
    595 else
    596    AC_MSG_ERROR([newly created file is older than distributed files!
    597 Check your system clock])
    598 fi
    599 AC_MSG_RESULT([yes])
    600 # If we didn't sleep, we still need to ensure time stamps of config.status and
    601 # generated files are strictly newer.
    602 am_sleep_pid=
    603 if grep 'slept: no' conftest.file >/dev/null 2>&1; then
    604   ( sleep 1 ) &
    605   am_sleep_pid=$!
    606 fi
    607 AC_CONFIG_COMMANDS_PRE(
    608   [AC_MSG_CHECKING([that generated files are newer than configure])
    609    if test -n "$am_sleep_pid"; then
    610      # Hide warnings about reused PIDs.
    611      wait $am_sleep_pid 2>/dev/null
    612    fi
    613    AC_MSG_RESULT([done])])
    614 rm -f conftest.file
    615 ])
    616 
    617 # Copyright (C) 2009-2017 Free Software Foundation, Inc.
    618 #
    619 # This file is free software; the Free Software Foundation
    620 # gives unlimited permission to copy and/or distribute it,
    621 # with or without modifications, as long as this notice is preserved.
    622 
    623 # AM_SILENT_RULES([DEFAULT])
    624 # --------------------------
    625 # Enable less verbose build rules; with the default set to DEFAULT
    626 # ("yes" being less verbose, "no" or empty being verbose).
    627 AC_DEFUN([AM_SILENT_RULES],
    628 [AC_ARG_ENABLE([silent-rules], [dnl
    629 AS_HELP_STRING(
    630   [--enable-silent-rules],
    631   [less verbose build output (undo: "make V=1")])
    632 AS_HELP_STRING(
    633   [--disable-silent-rules],
    634   [verbose build output (undo: "make V=0")])dnl
    635 ])
    636 case $enable_silent_rules in @%:@ (((
    637   yes) AM_DEFAULT_VERBOSITY=0;;
    638    no) AM_DEFAULT_VERBOSITY=1;;
    639     *) AM_DEFAULT_VERBOSITY=m4_if([$1], [yes], [0], [1]);;
    640 esac
    641 dnl
    642 dnl A few 'make' implementations (e.g., NonStop OS and NextStep)
    643 dnl do not support nested variable expansions.
    644 dnl See automake bug#9928 and bug#10237.
    645 am_make=${MAKE-make}
    646 AC_CACHE_CHECK([whether $am_make supports nested variables],
    647    [am_cv_make_support_nested_variables],
    648    [if AS_ECHO([['TRUE=$(BAR$(V))
    649 BAR0=false
    650 BAR1=true
    651 V=1
    652 am__doit:
    653 	@$(TRUE)
    654 .PHONY: am__doit']]) | $am_make -f - >/dev/null 2>&1; then
    655   am_cv_make_support_nested_variables=yes
    656 else
    657   am_cv_make_support_nested_variables=no
    658 fi])
    659 if test $am_cv_make_support_nested_variables = yes; then
    660   dnl Using '$V' instead of '$(V)' breaks IRIX make.
    661   AM_V='$(V)'
    662   AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
    663 else
    664   AM_V=$AM_DEFAULT_VERBOSITY
    665   AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY
    666 fi
    667 AC_SUBST([AM_V])dnl
    668 AM_SUBST_NOTMAKE([AM_V])dnl
    669 AC_SUBST([AM_DEFAULT_V])dnl
    670 AM_SUBST_NOTMAKE([AM_DEFAULT_V])dnl
    671 AC_SUBST([AM_DEFAULT_VERBOSITY])dnl
    672 AM_BACKSLASH='\'
    673 AC_SUBST([AM_BACKSLASH])dnl
    674 _AM_SUBST_NOTMAKE([AM_BACKSLASH])dnl
    675 ])
    676 
    677 # Copyright (C) 2001-2017 Free Software Foundation, Inc.
    678 #
    679 # This file is free software; the Free Software Foundation
    680 # gives unlimited permission to copy and/or distribute it,
    681 # with or without modifications, as long as this notice is preserved.
    682 
    683 # AM_PROG_INSTALL_STRIP
    684 # ---------------------
    685 # One issue with vendor 'install' (even GNU) is that you can't
    686 # specify the program used to strip binaries.  This is especially
    687 # annoying in cross-compiling environments, where the build's strip
    688 # is unlikely to handle the host's binaries.
    689 # Fortunately install-sh will honor a STRIPPROG variable, so we
    690 # always use install-sh in "make install-strip", and initialize
    691 # STRIPPROG with the value of the STRIP variable (set by the user).
    692 AC_DEFUN([AM_PROG_INSTALL_STRIP],
    693 [AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
    694 # Installed binaries are usually stripped using 'strip' when the user
    695 # run "make install-strip".  However 'strip' might not be the right
    696 # tool to use in cross-compilation environments, therefore Automake
    697 # will honor the 'STRIP' environment variable to overrule this program.
    698 dnl Don't test for $cross_compiling = yes, because it might be 'maybe'.
    699 if test "$cross_compiling" != no; then
    700   AC_CHECK_TOOL([STRIP], [strip], :)
    701 fi
    702 INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
    703 AC_SUBST([INSTALL_STRIP_PROGRAM])])
    704 
    705 # Copyright (C) 2006-2017 Free Software Foundation, Inc.
    706 #
    707 # This file is free software; the Free Software Foundation
    708 # gives unlimited permission to copy and/or distribute it,
    709 # with or without modifications, as long as this notice is preserved.
    710 
    711 # _AM_SUBST_NOTMAKE(VARIABLE)
    712 # ---------------------------
    713 # Prevent Automake from outputting VARIABLE = @VARIABLE@ in Makefile.in.
    714 # This macro is traced by Automake.
    715 AC_DEFUN([_AM_SUBST_NOTMAKE])
    716 
    717 # AM_SUBST_NOTMAKE(VARIABLE)
    718 # --------------------------
    719 # Public sister of _AM_SUBST_NOTMAKE.
    720 AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE($@)])
    721 
    722 # Check how to create a tarball.                            -*- Autoconf -*-
    723 
    724 # Copyright (C) 2004-2017 Free Software Foundation, Inc.
    725 #
    726 # This file is free software; the Free Software Foundation
    727 # gives unlimited permission to copy and/or distribute it,
    728 # with or without modifications, as long as this notice is preserved.
    729 
    730 # _AM_PROG_TAR(FORMAT)
    731 # --------------------
    732 # Check how to create a tarball in format FORMAT.
    733 # FORMAT should be one of 'v7', 'ustar', or 'pax'.
    734 #
    735 # Substitute a variable $(am__tar) that is a command
    736 # writing to stdout a FORMAT-tarball containing the directory
    737 # $tardir.
    738 #     tardir=directory && $(am__tar) > result.tar
    739 #
    740 # Substitute a variable $(am__untar) that extract such
    741 # a tarball read from stdin.
    742 #     $(am__untar) < result.tar
    743 #
    744 AC_DEFUN([_AM_PROG_TAR],
    745 [# Always define AMTAR for backward compatibility.  Yes, it's still used
    746 # in the wild :-(  We should find a proper way to deprecate it ...
    747 AC_SUBST([AMTAR], ['$${TAR-tar}'])
    748 
    749 # We'll loop over all known methods to create a tar archive until one works.
    750 _am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none'
    751 
    752 m4_if([$1], [v7],
    753   [am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'],
    754 
    755   [m4_case([$1],
    756     [ustar],
    757      [# The POSIX 1988 'ustar' format is defined with fixed-size fields.
    758       # There is notably a 21 bits limit for the UID and the GID.  In fact,
    759       # the 'pax' utility can hang on bigger UID/GID (see automake bug#8343
    760       # and bug#13588).
    761       am_max_uid=2097151 # 2^21 - 1
    762       am_max_gid=$am_max_uid
    763       # The $UID and $GID variables are not portable, so we need to resort
    764       # to the POSIX-mandated id(1) utility.  Errors in the 'id' calls
    765       # below are definitely unexpected, so allow the users to see them
    766       # (that is, avoid stderr redirection).
    767       am_uid=`id -u || echo unknown`
    768       am_gid=`id -g || echo unknown`
    769       AC_MSG_CHECKING([whether UID '$am_uid' is supported by ustar format])
    770       if test $am_uid -le $am_max_uid; then
    771          AC_MSG_RESULT([yes])
    772       else
    773          AC_MSG_RESULT([no])
    774          _am_tools=none
    775       fi
    776       AC_MSG_CHECKING([whether GID '$am_gid' is supported by ustar format])
    777       if test $am_gid -le $am_max_gid; then
    778          AC_MSG_RESULT([yes])
    779       else
    780         AC_MSG_RESULT([no])
    781         _am_tools=none
    782       fi],
    783 
    784   [pax],
    785     [],
    786 
    787   [m4_fatal([Unknown tar format])])
    788 
    789   AC_MSG_CHECKING([how to create a $1 tar archive])
    790 
    791   # Go ahead even if we have the value already cached.  We do so because we
    792   # need to set the values for the 'am__tar' and 'am__untar' variables.
    793   _am_tools=${am_cv_prog_tar_$1-$_am_tools}
    794 
    795   for _am_tool in $_am_tools; do
    796     case $_am_tool in
    797     gnutar)
    798       for _am_tar in tar gnutar gtar; do
    799         AM_RUN_LOG([$_am_tar --version]) && break
    800       done
    801       am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"'
    802       am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"'
    803       am__untar="$_am_tar -xf -"
    804       ;;
    805     plaintar)
    806       # Must skip GNU tar: if it does not support --format= it doesn't create
    807       # ustar tarball either.
    808       (tar --version) >/dev/null 2>&1 && continue
    809       am__tar='tar chf - "$$tardir"'
    810       am__tar_='tar chf - "$tardir"'
    811       am__untar='tar xf -'
    812       ;;
    813     pax)
    814       am__tar='pax -L -x $1 -w "$$tardir"'
    815       am__tar_='pax -L -x $1 -w "$tardir"'
    816       am__untar='pax -r'
    817       ;;
    818     cpio)
    819       am__tar='find "$$tardir" -print | cpio -o -H $1 -L'
    820       am__tar_='find "$tardir" -print | cpio -o -H $1 -L'
    821       am__untar='cpio -i -H $1 -d'
    822       ;;
    823     none)
    824       am__tar=false
    825       am__tar_=false
    826       am__untar=false
    827       ;;
    828     esac
    829 
    830     # If the value was cached, stop now.  We just wanted to have am__tar
    831     # and am__untar set.
    832     test -n "${am_cv_prog_tar_$1}" && break
    833 
    834     # tar/untar a dummy directory, and stop if the command works.
    835     rm -rf conftest.dir
    836     mkdir conftest.dir
    837     echo GrepMe > conftest.dir/file
    838     AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar])
    839     rm -rf conftest.dir
    840     if test -s conftest.tar; then
    841       AM_RUN_LOG([$am__untar <conftest.tar])
    842       AM_RUN_LOG([cat conftest.dir/file])
    843       grep GrepMe conftest.dir/file >/dev/null 2>&1 && break
    844     fi
    845   done
    846   rm -rf conftest.dir
    847 
    848   AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool])
    849   AC_MSG_RESULT([$am_cv_prog_tar_$1])])
    850 
    851 AC_SUBST([am__tar])
    852 AC_SUBST([am__untar])
    853 ]) # _AM_PROG_TAR
    854 
    855 m4_include([../config/cet.m4])
    856 m4_include([../config/enable.m4])
    857 m4_include([../config/lead-dot.m4])
    858 m4_include([../config/multi.m4])
    859 m4_include([../config/override.m4])
    860 m4_include([../config/stdint.m4])
    861 m4_include([../config/unwind_ipinfo.m4])
    862 m4_include([../config/warnings.m4])
    863 m4_include([../libtool.m4])
    864 m4_include([../ltoptions.m4])
    865 m4_include([../ltsugar.m4])
    866 m4_include([../ltversion.m4])
    867 m4_include([../lt~obsolete.m4])
    868