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    1 # generated automatically by aclocal 1.15 -*- Autoconf -*-
    2 
    3 # Copyright (C) 1996-2014 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],,
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   19 You have another version of autoconf.  It may work, but is not guaranteed to.
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   22 
   23 # Copyright (C) 2002-2014 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
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   42 # _AM_AUTOCONF_VERSION(VERSION)
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   49 # AM_SET_CURRENT_AUTOMAKE_VERSION
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   58 
   59 # AM_AUX_DIR_EXPAND                                         -*- Autoconf -*-
   60 
   61 # Copyright (C) 2001-2014 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
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   80 #    fails when called from a subdirectory if $ac_aux_dir is relative
   81 # $top_srcdir/$ac_aux_dir/missing
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   83 #    fails when called from a subdirectory in a VPATH build with
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   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.
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  101 # Another solution, used here, is to always expand $ac_aux_dir to an
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  105 AC_DEFUN([AM_AUX_DIR_EXPAND],
  106 [AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT])dnl
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  108 am_aux_dir=`cd "$ac_aux_dir" && pwd`
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  110 
  111 # AM_CONDITIONAL                                            -*- Autoconf -*-
  112 
  113 # Copyright (C) 1997-2014 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])],
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  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='#'
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  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 "$1" was never defined.
  141 Usually this means the macro was only invoked conditionally.]])
  142 fi])])
  143 
  144 # Do all the work for Automake.                             -*- Autoconf -*-
  145 
  146 # Copyright (C) 1996-2014 Free Software Foundation, Inc.
  147 #
  148 # This file is free software; the Free Software Foundation
  149 # gives unlimited permission to copy and/or distribute it,
  150 # with or without modifications, as long as this notice is preserved.
  151 
  152 # This macro actually does too much.  Some checks are only needed if
  153 # your package does certain things.  But this isn't really a big deal.
  154 
  155 dnl Redefine AC_PROG_CC to automatically invoke _AM_PROG_CC_C_O.
  156 m4_define([AC_PROG_CC],
  157 m4_defn([AC_PROG_CC])
  158 [_AM_PROG_CC_C_O
  159 ])
  160 
  161 # AM_INIT_AUTOMAKE(PACKAGE, VERSION, [NO-DEFINE])
  162 # AM_INIT_AUTOMAKE([OPTIONS])
  163 # -----------------------------------------------
  164 # The call with PACKAGE and VERSION arguments is the old style
  165 # call (pre autoconf-2.50), which is being phased out.  PACKAGE
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  168 # We support both call styles for the transition.  After
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  170 # arguments mandatory, and then we can depend on a new Autoconf
  171 # release and drop the old call support.
  172 AC_DEFUN([AM_INIT_AUTOMAKE],
  173 [AC_PREREQ([2.65])dnl
  174 dnl Autoconf wants to disallow AM_ names.  We explicitly allow
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  176 m4_pattern_allow([^AM_[A-Z]+FLAGS$])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@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) 2001-2014 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 # Copyright (C) 2003-2014 Free Software Foundation, Inc.
  365 #
  366 # This file is free software; the Free Software Foundation
  367 # gives unlimited permission to copy and/or distribute it,
  368 # with or without modifications, as long as this notice is preserved.
  369 
  370 # Check whether the underlying file-system supports filenames
  371 # with a leading dot.  For instance MS-DOS doesn't.
  372 AC_DEFUN([AM_SET_LEADING_DOT],
  373 [rm -rf .tst 2>/dev/null
  374 mkdir .tst 2>/dev/null
  375 if test -d .tst; then
  376   am__leading_dot=.
  377 else
  378   am__leading_dot=_
  379 fi
  380 rmdir .tst 2>/dev/null
  381 AC_SUBST([am__leading_dot])])
  382 
  383 # Add --enable-maintainer-mode option to configure.         -*- Autoconf -*-
  384 # From Jim Meyering
  385 
  386 # Copyright (C) 1996-2014 Free Software Foundation, Inc.
  387 #
  388 # This file is free software; the Free Software Foundation
  389 # gives unlimited permission to copy and/or distribute it,
  390 # with or without modifications, as long as this notice is preserved.
  391 
  392 # AM_MAINTAINER_MODE([DEFAULT-MODE])
  393 # ----------------------------------
  394 # Control maintainer-specific portions of Makefiles.
  395 # Default is to disable them, unless 'enable' is passed literally.
  396 # For symmetry, 'disable' may be passed as well.  Anyway, the user
  397 # can override the default with the --enable/--disable switch.
  398 AC_DEFUN([AM_MAINTAINER_MODE],
  399 [m4_case(m4_default([$1], [disable]),
  400        [enable], [m4_define([am_maintainer_other], [disable])],
  401        [disable], [m4_define([am_maintainer_other], [enable])],
  402        [m4_define([am_maintainer_other], [enable])
  403         m4_warn([syntax], [unexpected argument to AM@&t@_MAINTAINER_MODE: $1])])
  404 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
  405   dnl maintainer-mode's default is 'disable' unless 'enable' is passed
  406   AC_ARG_ENABLE([maintainer-mode],
  407     [AS_HELP_STRING([--]am_maintainer_other[-maintainer-mode],
  408       am_maintainer_other[ make rules and dependencies not useful
  409       (and sometimes confusing) to the casual installer])],
  410     [USE_MAINTAINER_MODE=$enableval],
  411     [USE_MAINTAINER_MODE=]m4_if(am_maintainer_other, [enable], [no], [yes]))
  412   AC_MSG_RESULT([$USE_MAINTAINER_MODE])
  413   AM_CONDITIONAL([MAINTAINER_MODE], [test $USE_MAINTAINER_MODE = yes])
  414   MAINT=$MAINTAINER_MODE_TRUE
  415   AC_SUBST([MAINT])dnl
  416 ]
  417 )
  418 
  419 # Fake the existence of programs that GNU maintainers use.  -*- Autoconf -*-
  420 
  421 # Copyright (C) 1997-2014 Free Software Foundation, Inc.
  422 #
  423 # This file is free software; the Free Software Foundation
  424 # gives unlimited permission to copy and/or distribute it,
  425 # with or without modifications, as long as this notice is preserved.
  426 
  427 # AM_MISSING_PROG(NAME, PROGRAM)
  428 # ------------------------------
  429 AC_DEFUN([AM_MISSING_PROG],
  430 [AC_REQUIRE([AM_MISSING_HAS_RUN])
  431 $1=${$1-"${am_missing_run}$2"}
  432 AC_SUBST($1)])
  433 
  434 # AM_MISSING_HAS_RUN
  435 # ------------------
  436 # Define MISSING if not defined so far and test if it is modern enough.
  437 # If it is, set am_missing_run to use it, otherwise, to nothing.
  438 AC_DEFUN([AM_MISSING_HAS_RUN],
  439 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
  440 AC_REQUIRE_AUX_FILE([missing])dnl
  441 if test x"${MISSING+set}" != xset; then
  442   case $am_aux_dir in
  443   *\ * | *\	*)
  444     MISSING="\${SHELL} \"$am_aux_dir/missing\"" ;;
  445   *)
  446     MISSING="\${SHELL} $am_aux_dir/missing" ;;
  447   esac
  448 fi
  449 # Use eval to expand $SHELL
  450 if eval "$MISSING --is-lightweight"; then
  451   am_missing_run="$MISSING "
  452 else
  453   am_missing_run=
  454   AC_MSG_WARN(['missing' script is too old or missing])
  455 fi
  456 ])
  457 
  458 # Helper functions for option handling.                     -*- Autoconf -*-
  459 
  460 # Copyright (C) 2001-2014 Free Software Foundation, Inc.
  461 #
  462 # This file is free software; the Free Software Foundation
  463 # gives unlimited permission to copy and/or distribute it,
  464 # with or without modifications, as long as this notice is preserved.
  465 
  466 # _AM_MANGLE_OPTION(NAME)
  467 # -----------------------
  468 AC_DEFUN([_AM_MANGLE_OPTION],
  469 [[_AM_OPTION_]m4_bpatsubst($1, [[^a-zA-Z0-9_]], [_])])
  470 
  471 # _AM_SET_OPTION(NAME)
  472 # --------------------
  473 # Set option NAME.  Presently that only means defining a flag for this option.
  474 AC_DEFUN([_AM_SET_OPTION],
  475 [m4_define(_AM_MANGLE_OPTION([$1]), [1])])
  476 
  477 # _AM_SET_OPTIONS(OPTIONS)
  478 # ------------------------
  479 # OPTIONS is a space-separated list of Automake options.
  480 AC_DEFUN([_AM_SET_OPTIONS],
  481 [m4_foreach_w([_AM_Option], [$1], [_AM_SET_OPTION(_AM_Option)])])
  482 
  483 # _AM_IF_OPTION(OPTION, IF-SET, [IF-NOT-SET])
  484 # -------------------------------------------
  485 # Execute IF-SET if OPTION is set, IF-NOT-SET otherwise.
  486 AC_DEFUN([_AM_IF_OPTION],
  487 [m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])])
  488 
  489 # Copyright (C) 1999-2014 Free Software Foundation, Inc.
  490 #
  491 # This file is free software; the Free Software Foundation
  492 # gives unlimited permission to copy and/or distribute it,
  493 # with or without modifications, as long as this notice is preserved.
  494 
  495 # _AM_PROG_CC_C_O
  496 # ---------------
  497 # Like AC_PROG_CC_C_O, but changed for automake.  We rewrite AC_PROG_CC
  498 # to automatically call this.
  499 AC_DEFUN([_AM_PROG_CC_C_O],
  500 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
  501 AC_REQUIRE_AUX_FILE([compile])dnl
  502 AC_LANG_PUSH([C])dnl
  503 AC_CACHE_CHECK(
  504   [whether $CC understands -c and -o together],
  505   [am_cv_prog_cc_c_o],
  506   [AC_LANG_CONFTEST([AC_LANG_PROGRAM([])])
  507   # Make sure it works both with $CC and with simple cc.
  508   # Following AC_PROG_CC_C_O, we do the test twice because some
  509   # compilers refuse to overwrite an existing .o file with -o,
  510   # though they will create one.
  511   am_cv_prog_cc_c_o=yes
  512   for am_i in 1 2; do
  513     if AM_RUN_LOG([$CC -c conftest.$ac_ext -o conftest2.$ac_objext]) \
  514          && test -f conftest2.$ac_objext; then
  515       : OK
  516     else
  517       am_cv_prog_cc_c_o=no
  518       break
  519     fi
  520   done
  521   rm -f core conftest*
  522   unset am_i])
  523 if test "$am_cv_prog_cc_c_o" != yes; then
  524    # Losing compiler, so override with the script.
  525    # FIXME: It is wrong to rewrite CC.
  526    # But if we don't then we get into trouble of one sort or another.
  527    # A longer-term fix would be to have automake use am__CC in this case,
  528    # and then we could set am__CC="\$(top_srcdir)/compile \$(CC)"
  529    CC="$am_aux_dir/compile $CC"
  530 fi
  531 AC_LANG_POP([C])])
  532 
  533 # For backward compatibility.
  534 AC_DEFUN_ONCE([AM_PROG_CC_C_O], [AC_REQUIRE([AC_PROG_CC])])
  535 
  536 # Copyright (C) 2001-2014 Free Software Foundation, Inc.
  537 #
  538 # This file is free software; the Free Software Foundation
  539 # gives unlimited permission to copy and/or distribute it,
  540 # with or without modifications, as long as this notice is preserved.
  541 
  542 # AM_RUN_LOG(COMMAND)
  543 # -------------------
  544 # Run COMMAND, save the exit status in ac_status, and log it.
  545 # (This has been adapted from Autoconf's _AC_RUN_LOG macro.)
  546 AC_DEFUN([AM_RUN_LOG],
  547 [{ echo "$as_me:$LINENO: $1" >&AS_MESSAGE_LOG_FD
  548    ($1) >&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD
  549    ac_status=$?
  550    echo "$as_me:$LINENO: \$? = $ac_status" >&AS_MESSAGE_LOG_FD
  551    (exit $ac_status); }])
  552 
  553 # Check to make sure that the build environment is sane.    -*- Autoconf -*-
  554 
  555 # Copyright (C) 1996-2014 Free Software Foundation, Inc.
  556 #
  557 # This file is free software; the Free Software Foundation
  558 # gives unlimited permission to copy and/or distribute it,
  559 # with or without modifications, as long as this notice is preserved.
  560 
  561 # AM_SANITY_CHECK
  562 # ---------------
  563 AC_DEFUN([AM_SANITY_CHECK],
  564 [AC_MSG_CHECKING([whether build environment is sane])
  565 # Reject unsafe characters in $srcdir or the absolute working directory
  566 # name.  Accept space and tab only in the latter.
  567 am_lf='
  568 '
  569 case `pwd` in
  570   *[[\\\"\#\$\&\'\`$am_lf]]*)
  571     AC_MSG_ERROR([unsafe absolute working directory name]);;
  572 esac
  573 case $srcdir in
  574   *[[\\\"\#\$\&\'\`$am_lf\ \	]]*)
  575     AC_MSG_ERROR([unsafe srcdir value: '$srcdir']);;
  576 esac
  577 
  578 # Do 'set' in a subshell so we don't clobber the current shell's
  579 # arguments.  Must try -L first in case configure is actually a
  580 # symlink; some systems play weird games with the mod time of symlinks
  581 # (eg FreeBSD returns the mod time of the symlink's containing
  582 # directory).
  583 if (
  584    am_has_slept=no
  585    for am_try in 1 2; do
  586      echo "timestamp, slept: $am_has_slept" > conftest.file
  587      set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null`
  588      if test "$[*]" = "X"; then
  589 	# -L didn't work.
  590 	set X `ls -t "$srcdir/configure" conftest.file`
  591      fi
  592      if test "$[*]" != "X $srcdir/configure conftest.file" \
  593 	&& test "$[*]" != "X conftest.file $srcdir/configure"; then
  594 
  595 	# If neither matched, then we have a broken ls.  This can happen
  596 	# if, for instance, CONFIG_SHELL is bash and it inherits a
  597 	# broken ls alias from the environment.  This has actually
  598 	# happened.  Such a system could not be considered "sane".
  599 	AC_MSG_ERROR([ls -t appears to fail.  Make sure there is not a broken
  600   alias in your environment])
  601      fi
  602      if test "$[2]" = conftest.file || test $am_try -eq 2; then
  603        break
  604      fi
  605      # Just in case.
  606      sleep 1
  607      am_has_slept=yes
  608    done
  609    test "$[2]" = conftest.file
  610    )
  611 then
  612    # Ok.
  613    :
  614 else
  615    AC_MSG_ERROR([newly created file is older than distributed files!
  616 Check your system clock])
  617 fi
  618 AC_MSG_RESULT([yes])
  619 # If we didn't sleep, we still need to ensure time stamps of config.status and
  620 # generated files are strictly newer.
  621 am_sleep_pid=
  622 if grep 'slept: no' conftest.file >/dev/null 2>&1; then
  623   ( sleep 1 ) &
  624   am_sleep_pid=$!
  625 fi
  626 AC_CONFIG_COMMANDS_PRE(
  627   [AC_MSG_CHECKING([that generated files are newer than configure])
  628    if test -n "$am_sleep_pid"; then
  629      # Hide warnings about reused PIDs.
  630      wait $am_sleep_pid 2>/dev/null
  631    fi
  632    AC_MSG_RESULT([done])])
  633 rm -f conftest.file
  634 ])
  635 
  636 # Copyright (C) 2009-2014 Free Software Foundation, Inc.
  637 #
  638 # This file is free software; the Free Software Foundation
  639 # gives unlimited permission to copy and/or distribute it,
  640 # with or without modifications, as long as this notice is preserved.
  641 
  642 # AM_SILENT_RULES([DEFAULT])
  643 # --------------------------
  644 # Enable less verbose build rules; with the default set to DEFAULT
  645 # ("yes" being less verbose, "no" or empty being verbose).
  646 AC_DEFUN([AM_SILENT_RULES],
  647 [AC_ARG_ENABLE([silent-rules], [dnl
  648 AS_HELP_STRING(
  649   [--enable-silent-rules],
  650   [less verbose build output (undo: "make V=1")])
  651 AS_HELP_STRING(
  652   [--disable-silent-rules],
  653   [verbose build output (undo: "make V=0")])dnl
  654 ])
  655 case $enable_silent_rules in @%:@ (((
  656   yes) AM_DEFAULT_VERBOSITY=0;;
  657    no) AM_DEFAULT_VERBOSITY=1;;
  658     *) AM_DEFAULT_VERBOSITY=m4_if([$1], [yes], [0], [1]);;
  659 esac
  660 dnl
  661 dnl A few 'make' implementations (e.g., NonStop OS and NextStep)
  662 dnl do not support nested variable expansions.
  663 dnl See automake bug#9928 and bug#10237.
  664 am_make=${MAKE-make}
  665 AC_CACHE_CHECK([whether $am_make supports nested variables],
  666    [am_cv_make_support_nested_variables],
  667    [if AS_ECHO([['TRUE=$(BAR$(V))
  668 BAR0=false
  669 BAR1=true
  670 V=1
  671 am__doit:
  672 	@$(TRUE)
  673 .PHONY: am__doit']]) | $am_make -f - >/dev/null 2>&1; then
  674   am_cv_make_support_nested_variables=yes
  675 else
  676   am_cv_make_support_nested_variables=no
  677 fi])
  678 if test $am_cv_make_support_nested_variables = yes; then
  679   dnl Using '$V' instead of '$(V)' breaks IRIX make.
  680   AM_V='$(V)'
  681   AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
  682 else
  683   AM_V=$AM_DEFAULT_VERBOSITY
  684   AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY
  685 fi
  686 AC_SUBST([AM_V])dnl
  687 AM_SUBST_NOTMAKE([AM_V])dnl
  688 AC_SUBST([AM_DEFAULT_V])dnl
  689 AM_SUBST_NOTMAKE([AM_DEFAULT_V])dnl
  690 AC_SUBST([AM_DEFAULT_VERBOSITY])dnl
  691 AM_BACKSLASH='\'
  692 AC_SUBST([AM_BACKSLASH])dnl
  693 _AM_SUBST_NOTMAKE([AM_BACKSLASH])dnl
  694 ])
  695 
  696 # Copyright (C) 2001-2014 Free Software Foundation, Inc.
  697 #
  698 # This file is free software; the Free Software Foundation
  699 # gives unlimited permission to copy and/or distribute it,
  700 # with or without modifications, as long as this notice is preserved.
  701 
  702 # AM_PROG_INSTALL_STRIP
  703 # ---------------------
  704 # One issue with vendor 'install' (even GNU) is that you can't
  705 # specify the program used to strip binaries.  This is especially
  706 # annoying in cross-compiling environments, where the build's strip
  707 # is unlikely to handle the host's binaries.
  708 # Fortunately install-sh will honor a STRIPPROG variable, so we
  709 # always use install-sh in "make install-strip", and initialize
  710 # STRIPPROG with the value of the STRIP variable (set by the user).
  711 AC_DEFUN([AM_PROG_INSTALL_STRIP],
  712 [AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
  713 # Installed binaries are usually stripped using 'strip' when the user
  714 # run "make install-strip".  However 'strip' might not be the right
  715 # tool to use in cross-compilation environments, therefore Automake
  716 # will honor the 'STRIP' environment variable to overrule this program.
  717 dnl Don't test for $cross_compiling = yes, because it might be 'maybe'.
  718 if test "$cross_compiling" != no; then
  719   AC_CHECK_TOOL([STRIP], [strip], :)
  720 fi
  721 INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
  722 AC_SUBST([INSTALL_STRIP_PROGRAM])])
  723 
  724 # Copyright (C) 2006-2014 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_SUBST_NOTMAKE(VARIABLE)
  731 # ---------------------------
  732 # Prevent Automake from outputting VARIABLE = @VARIABLE@ in Makefile.in.
  733 # This macro is traced by Automake.
  734 AC_DEFUN([_AM_SUBST_NOTMAKE])
  735 
  736 # AM_SUBST_NOTMAKE(VARIABLE)
  737 # --------------------------
  738 # Public sister of _AM_SUBST_NOTMAKE.
  739 AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE($@)])
  740 
  741 # Check how to create a tarball.                            -*- Autoconf -*-
  742 
  743 # Copyright (C) 2004-2014 Free Software Foundation, Inc.
  744 #
  745 # This file is free software; the Free Software Foundation
  746 # gives unlimited permission to copy and/or distribute it,
  747 # with or without modifications, as long as this notice is preserved.
  748 
  749 # _AM_PROG_TAR(FORMAT)
  750 # --------------------
  751 # Check how to create a tarball in format FORMAT.
  752 # FORMAT should be one of 'v7', 'ustar', or 'pax'.
  753 #
  754 # Substitute a variable $(am__tar) that is a command
  755 # writing to stdout a FORMAT-tarball containing the directory
  756 # $tardir.
  757 #     tardir=directory && $(am__tar) > result.tar
  758 #
  759 # Substitute a variable $(am__untar) that extract such
  760 # a tarball read from stdin.
  761 #     $(am__untar) < result.tar
  762 #
  763 AC_DEFUN([_AM_PROG_TAR],
  764 [# Always define AMTAR for backward compatibility.  Yes, it's still used
  765 # in the wild :-(  We should find a proper way to deprecate it ...
  766 AC_SUBST([AMTAR], ['$${TAR-tar}'])
  767 
  768 # We'll loop over all known methods to create a tar archive until one works.
  769 _am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none'
  770 
  771 m4_if([$1], [v7],
  772   [am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'],
  773 
  774   [m4_case([$1],
  775     [ustar],
  776      [# The POSIX 1988 'ustar' format is defined with fixed-size fields.
  777       # There is notably a 21 bits limit for the UID and the GID.  In fact,
  778       # the 'pax' utility can hang on bigger UID/GID (see automake bug#8343
  779       # and bug#13588).
  780       am_max_uid=2097151 # 2^21 - 1
  781       am_max_gid=$am_max_uid
  782       # The $UID and $GID variables are not portable, so we need to resort
  783       # to the POSIX-mandated id(1) utility.  Errors in the 'id' calls
  784       # below are definitely unexpected, so allow the users to see them
  785       # (that is, avoid stderr redirection).
  786       am_uid=`id -u || echo unknown`
  787       am_gid=`id -g || echo unknown`
  788       AC_MSG_CHECKING([whether UID '$am_uid' is supported by ustar format])
  789       if test $am_uid -le $am_max_uid; then
  790          AC_MSG_RESULT([yes])
  791       else
  792          AC_MSG_RESULT([no])
  793          _am_tools=none
  794       fi
  795       AC_MSG_CHECKING([whether GID '$am_gid' is supported by ustar format])
  796       if test $am_gid -le $am_max_gid; then
  797          AC_MSG_RESULT([yes])
  798       else
  799         AC_MSG_RESULT([no])
  800         _am_tools=none
  801       fi],
  802 
  803   [pax],
  804     [],
  805 
  806   [m4_fatal([Unknown tar format])])
  807 
  808   AC_MSG_CHECKING([how to create a $1 tar archive])
  809 
  810   # Go ahead even if we have the value already cached.  We do so because we
  811   # need to set the values for the 'am__tar' and 'am__untar' variables.
  812   _am_tools=${am_cv_prog_tar_$1-$_am_tools}
  813 
  814   for _am_tool in $_am_tools; do
  815     case $_am_tool in
  816     gnutar)
  817       for _am_tar in tar gnutar gtar; do
  818         AM_RUN_LOG([$_am_tar --version]) && break
  819       done
  820       am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"'
  821       am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"'
  822       am__untar="$_am_tar -xf -"
  823       ;;
  824     plaintar)
  825       # Must skip GNU tar: if it does not support --format= it doesn't create
  826       # ustar tarball either.
  827       (tar --version) >/dev/null 2>&1 && continue
  828       am__tar='tar chf - "$$tardir"'
  829       am__tar_='tar chf - "$tardir"'
  830       am__untar='tar xf -'
  831       ;;
  832     pax)
  833       am__tar='pax -L -x $1 -w "$$tardir"'
  834       am__tar_='pax -L -x $1 -w "$tardir"'
  835       am__untar='pax -r'
  836       ;;
  837     cpio)
  838       am__tar='find "$$tardir" -print | cpio -o -H $1 -L'
  839       am__tar_='find "$tardir" -print | cpio -o -H $1 -L'
  840       am__untar='cpio -i -H $1 -d'
  841       ;;
  842     none)
  843       am__tar=false
  844       am__tar_=false
  845       am__untar=false
  846       ;;
  847     esac
  848 
  849     # If the value was cached, stop now.  We just wanted to have am__tar
  850     # and am__untar set.
  851     test -n "${am_cv_prog_tar_$1}" && break
  852 
  853     # tar/untar a dummy directory, and stop if the command works.
  854     rm -rf conftest.dir
  855     mkdir conftest.dir
  856     echo GrepMe > conftest.dir/file
  857     AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar])
  858     rm -rf conftest.dir
  859     if test -s conftest.tar; then
  860       AM_RUN_LOG([$am__untar <conftest.tar])
  861       AM_RUN_LOG([cat conftest.dir/file])
  862       grep GrepMe conftest.dir/file >/dev/null 2>&1 && break
  863     fi
  864   done
  865   rm -rf conftest.dir
  866 
  867   AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool])
  868   AC_MSG_RESULT([$am_cv_prog_tar_$1])])
  869 
  870 AC_SUBST([am__tar])
  871 AC_SUBST([am__untar])
  872 ]) # _AM_PROG_TAR
  873 
  874 m4_include([build-aux/m4/ax_check_enable_debug.m4])
  875 m4_include([build-aux/m4/ax_path_lib_pcre.m4])
  876 m4_include([build-aux/m4/ax_require_defined.m4])
  877 m4_include([build-aux/m4/ax_with_curses.m4])
  878 m4_include([build-aux/m4/pkg.m4])