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    1 # generated automatically by aclocal 1.13.4 -*- Autoconf -*-
    2 
    3 # Copyright (C) 1996-2013 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($@)])])
   15 m4_ifndef([AC_AUTOCONF_VERSION],
   16   [m4_copy([m4_PACKAGE_VERSION], [AC_AUTOCONF_VERSION])])dnl
   17 m4_if(m4_defn([AC_AUTOCONF_VERSION]), [2.69],,
   18 [m4_warning([this file was generated for autoconf 2.69.
   19 You have another version of autoconf.  It may work, but is not guaranteed to.
   20 If you have problems, you may need to regenerate the build system entirely.
   21 To do so, use the procedure documented by the package, typically 'autoreconf'.])])
   22 
   23 # pkg.m4 - Macros to locate and utilise pkg-config.            -*- Autoconf -*-
   24 # serial 1 (pkg-config-0.24)
   25 # 
   26 # Copyright © 2004 Scott James Remnant <scott@netsplit.com>.
   27 #
   28 # This program is free software; you can redistribute it and/or modify
   29 # it under the terms of the GNU General Public License as published by
   30 # the Free Software Foundation; either version 2 of the License, or
   31 # (at your option) any later version.
   32 #
   33 # This program is distributed in the hope that it will be useful, but
   34 # WITHOUT ANY WARRANTY; without even the implied warranty of
   35 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   36 # General Public License for more details.
   37 #
   38 # You should have received a copy of the GNU General Public License
   39 # along with this program; if not, write to the Free Software
   40 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
   41 #
   42 # As a special exception to the GNU General Public License, if you
   43 # distribute this file as part of a program that contains a
   44 # configuration script generated by Autoconf, you may include it under
   45 # the same distribution terms that you use for the rest of that program.
   46 
   47 # PKG_PROG_PKG_CONFIG([MIN-VERSION])
   48 # ----------------------------------
   49 AC_DEFUN([PKG_PROG_PKG_CONFIG],
   50 [m4_pattern_forbid([^_?PKG_[A-Z_]+$])
   51 m4_pattern_allow([^PKG_CONFIG(_(PATH|LIBDIR|SYSROOT_DIR|ALLOW_SYSTEM_(CFLAGS|LIBS)))?$])
   52 m4_pattern_allow([^PKG_CONFIG_(DISABLE_UNINSTALLED|TOP_BUILD_DIR|DEBUG_SPEW)$])
   53 AC_ARG_VAR([PKG_CONFIG], [path to pkg-config utility])
   54 AC_ARG_VAR([PKG_CONFIG_PATH], [directories to add to pkg-config's search path])
   55 AC_ARG_VAR([PKG_CONFIG_LIBDIR], [path overriding pkg-config's built-in search path])
   56 
   57 if test "x$ac_cv_env_PKG_CONFIG_set" != "xset"; then
   58 	AC_PATH_TOOL([PKG_CONFIG], [pkg-config])
   59 fi
   60 if test -n "$PKG_CONFIG"; then
   61 	_pkg_min_version=m4_default([$1], [0.9.0])
   62 	AC_MSG_CHECKING([pkg-config is at least version $_pkg_min_version])
   63 	if $PKG_CONFIG --atleast-pkgconfig-version $_pkg_min_version; then
   64 		AC_MSG_RESULT([yes])
   65 	else
   66 		AC_MSG_RESULT([no])
   67 		PKG_CONFIG=""
   68 	fi
   69 fi[]dnl
   70 ])# PKG_PROG_PKG_CONFIG
   71 
   72 # PKG_CHECK_EXISTS(MODULES, [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
   73 #
   74 # Check to see whether a particular set of modules exists.  Similar
   75 # to PKG_CHECK_MODULES(), but does not set variables or print errors.
   76 #
   77 # Please remember that m4 expands AC_REQUIRE([PKG_PROG_PKG_CONFIG])
   78 # only at the first occurence in configure.ac, so if the first place
   79 # it's called might be skipped (such as if it is within an "if", you
   80 # have to call PKG_CHECK_EXISTS manually
   81 # --------------------------------------------------------------
   82 AC_DEFUN([PKG_CHECK_EXISTS],
   83 [AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
   84 if test -n "$PKG_CONFIG" && \
   85     AC_RUN_LOG([$PKG_CONFIG --exists --print-errors "$1"]); then
   86   m4_default([$2], [:])
   87 m4_ifvaln([$3], [else
   88   $3])dnl
   89 fi])
   90 
   91 # _PKG_CONFIG([VARIABLE], [COMMAND], [MODULES])
   92 # ---------------------------------------------
   93 m4_define([_PKG_CONFIG],
   94 [if test -n "$$1"; then
   95     pkg_cv_[]$1="$$1"
   96  elif test -n "$PKG_CONFIG"; then
   97     PKG_CHECK_EXISTS([$3],
   98                      [pkg_cv_[]$1=`$PKG_CONFIG --[]$2 "$3" 2>/dev/null`
   99 		      test "x$?" != "x0" && pkg_failed=yes ],
  100 		     [pkg_failed=yes])
  101  else
  102     pkg_failed=untried
  103 fi[]dnl
  104 ])# _PKG_CONFIG
  105 
  106 # _PKG_SHORT_ERRORS_SUPPORTED
  107 # -----------------------------
  108 AC_DEFUN([_PKG_SHORT_ERRORS_SUPPORTED],
  109 [AC_REQUIRE([PKG_PROG_PKG_CONFIG])
  110 if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
  111         _pkg_short_errors_supported=yes
  112 else
  113         _pkg_short_errors_supported=no
  114 fi[]dnl
  115 ])# _PKG_SHORT_ERRORS_SUPPORTED
  116 
  117 
  118 # PKG_CHECK_MODULES(VARIABLE-PREFIX, MODULES, [ACTION-IF-FOUND],
  119 # [ACTION-IF-NOT-FOUND])
  120 #
  121 #
  122 # Note that if there is a possibility the first call to
  123 # PKG_CHECK_MODULES might not happen, you should be sure to include an
  124 # explicit call to PKG_PROG_PKG_CONFIG in your configure.ac
  125 #
  126 #
  127 # --------------------------------------------------------------
  128 AC_DEFUN([PKG_CHECK_MODULES],
  129 [AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
  130 AC_ARG_VAR([$1][_CFLAGS], [C compiler flags for $1, overriding pkg-config])dnl
  131 AC_ARG_VAR([$1][_LIBS], [linker flags for $1, overriding pkg-config])dnl
  132 
  133 pkg_failed=no
  134 AC_MSG_CHECKING([for $1])
  135 
  136 _PKG_CONFIG([$1][_CFLAGS], [cflags], [$2])
  137 _PKG_CONFIG([$1][_LIBS], [libs], [$2])
  138 
  139 m4_define([_PKG_TEXT], [Alternatively, you may set the environment variables $1[]_CFLAGS
  140 and $1[]_LIBS to avoid the need to call pkg-config.
  141 See the pkg-config man page for more details.])
  142 
  143 if test $pkg_failed = yes; then
  144    	AC_MSG_RESULT([no])
  145         _PKG_SHORT_ERRORS_SUPPORTED
  146         if test $_pkg_short_errors_supported = yes; then
  147 	        $1[]_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "$2" 2>&1`
  148         else 
  149 	        $1[]_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "$2" 2>&1`
  150         fi
  151 	# Put the nasty error message in config.log where it belongs
  152 	echo "$$1[]_PKG_ERRORS" >&AS_MESSAGE_LOG_FD
  153 
  154 	m4_default([$4], [AC_MSG_ERROR(
  155 [Package requirements ($2) were not met:
  156 
  157 $$1_PKG_ERRORS
  158 
  159 Consider adjusting the PKG_CONFIG_PATH environment variable if you
  160 installed software in a non-standard prefix.
  161 
  162 _PKG_TEXT])[]dnl
  163         ])
  164 elif test $pkg_failed = untried; then
  165      	AC_MSG_RESULT([no])
  166 	m4_default([$4], [AC_MSG_FAILURE(
  167 [The pkg-config script could not be found or is too old.  Make sure it
  168 is in your PATH or set the PKG_CONFIG environment variable to the full
  169 path to pkg-config.
  170 
  171 _PKG_TEXT
  172 
  173 To get pkg-config, see <http://pkg-config.freedesktop.org/>.])[]dnl
  174         ])
  175 else
  176 	$1[]_CFLAGS=$pkg_cv_[]$1[]_CFLAGS
  177 	$1[]_LIBS=$pkg_cv_[]$1[]_LIBS
  178         AC_MSG_RESULT([yes])
  179 	$3
  180 fi[]dnl
  181 ])# PKG_CHECK_MODULES
  182 
  183 
  184 # PKG_INSTALLDIR(DIRECTORY)
  185 # -------------------------
  186 # Substitutes the variable pkgconfigdir as the location where a module
  187 # should install pkg-config .pc files. By default the directory is
  188 # $libdir/pkgconfig, but the default can be changed by passing
  189 # DIRECTORY. The user can override through the --with-pkgconfigdir
  190 # parameter.
  191 AC_DEFUN([PKG_INSTALLDIR],
  192 [m4_pushdef([pkg_default], [m4_default([$1], ['${libdir}/pkgconfig'])])
  193 m4_pushdef([pkg_description],
  194     [pkg-config installation directory @<:@]pkg_default[@:>@])
  195 AC_ARG_WITH([pkgconfigdir],
  196     [AS_HELP_STRING([--with-pkgconfigdir], pkg_description)],,
  197     [with_pkgconfigdir=]pkg_default)
  198 AC_SUBST([pkgconfigdir], [$with_pkgconfigdir])
  199 m4_popdef([pkg_default])
  200 m4_popdef([pkg_description])
  201 ]) dnl PKG_INSTALLDIR
  202 
  203 
  204 # PKG_NOARCH_INSTALLDIR(DIRECTORY)
  205 # -------------------------
  206 # Substitutes the variable noarch_pkgconfigdir as the location where a
  207 # module should install arch-independent pkg-config .pc files. By
  208 # default the directory is $datadir/pkgconfig, but the default can be
  209 # changed by passing DIRECTORY. The user can override through the
  210 # --with-noarch-pkgconfigdir parameter.
  211 AC_DEFUN([PKG_NOARCH_INSTALLDIR],
  212 [m4_pushdef([pkg_default], [m4_default([$1], ['${datadir}/pkgconfig'])])
  213 m4_pushdef([pkg_description],
  214     [pkg-config arch-independent installation directory @<:@]pkg_default[@:>@])
  215 AC_ARG_WITH([noarch-pkgconfigdir],
  216     [AS_HELP_STRING([--with-noarch-pkgconfigdir], pkg_description)],,
  217     [with_noarch_pkgconfigdir=]pkg_default)
  218 AC_SUBST([noarch_pkgconfigdir], [$with_noarch_pkgconfigdir])
  219 m4_popdef([pkg_default])
  220 m4_popdef([pkg_description])
  221 ]) dnl PKG_NOARCH_INSTALLDIR
  222 
  223 
  224 # PKG_CHECK_VAR(VARIABLE, MODULE, CONFIG-VARIABLE,
  225 # [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
  226 # -------------------------------------------
  227 # Retrieves the value of the pkg-config variable for the given module.
  228 AC_DEFUN([PKG_CHECK_VAR],
  229 [AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
  230 AC_ARG_VAR([$1], [value of $3 for $2, overriding pkg-config])dnl
  231 
  232 _PKG_CONFIG([$1], [variable="][$3]["], [$2])
  233 AS_VAR_COPY([$1], [pkg_cv_][$1])
  234 
  235 AS_VAR_IF([$1], [""], [$5], [$4])dnl
  236 ])# PKG_CHECK_VAR
  237 
  238 # Copyright (C) 2002-2013 Free Software Foundation, Inc.
  239 #
  240 # This file is free software; the Free Software Foundation
  241 # gives unlimited permission to copy and/or distribute it,
  242 # with or without modifications, as long as this notice is preserved.
  243 
  244 # AM_AUTOMAKE_VERSION(VERSION)
  245 # ----------------------------
  246 # Automake X.Y traces this macro to ensure aclocal.m4 has been
  247 # generated from the m4 files accompanying Automake X.Y.
  248 # (This private macro should not be called outside this file.)
  249 AC_DEFUN([AM_AUTOMAKE_VERSION],
  250 [am__api_version='1.13'
  251 dnl Some users find AM_AUTOMAKE_VERSION and mistake it for a way to
  252 dnl require some minimum version.  Point them to the right macro.
  253 m4_if([$1], [1.13.4], [],
  254       [AC_FATAL([Do not call $0, use AM_INIT_AUTOMAKE([$1]).])])dnl
  255 ])
  256 
  257 # _AM_AUTOCONF_VERSION(VERSION)
  258 # -----------------------------
  259 # aclocal traces this macro to find the Autoconf version.
  260 # This is a private macro too.  Using m4_define simplifies
  261 # the logic in aclocal, which can simply ignore this definition.
  262 m4_define([_AM_AUTOCONF_VERSION], [])
  263 
  264 # AM_SET_CURRENT_AUTOMAKE_VERSION
  265 # -------------------------------
  266 # Call AM_AUTOMAKE_VERSION and AM_AUTOMAKE_VERSION so they can be traced.
  267 # This function is AC_REQUIREd by AM_INIT_AUTOMAKE.
  268 AC_DEFUN([AM_SET_CURRENT_AUTOMAKE_VERSION],
  269 [AM_AUTOMAKE_VERSION([1.13.4])dnl
  270 m4_ifndef([AC_AUTOCONF_VERSION],
  271   [m4_copy([m4_PACKAGE_VERSION], [AC_AUTOCONF_VERSION])])dnl
  272 _AM_AUTOCONF_VERSION(m4_defn([AC_AUTOCONF_VERSION]))])
  273 
  274 # AM_AUX_DIR_EXPAND                                         -*- Autoconf -*-
  275 
  276 # Copyright (C) 2001-2013 Free Software Foundation, Inc.
  277 #
  278 # This file is free software; the Free Software Foundation
  279 # gives unlimited permission to copy and/or distribute it,
  280 # with or without modifications, as long as this notice is preserved.
  281 
  282 # For projects using AC_CONFIG_AUX_DIR([foo]), Autoconf sets
  283 # $ac_aux_dir to '$srcdir/foo'.  In other projects, it is set to
  284 # '$srcdir', '$srcdir/..', or '$srcdir/../..'.
  285 #
  286 # Of course, Automake must honor this variable whenever it calls a
  287 # tool from the auxiliary directory.  The problem is that $srcdir (and
  288 # therefore $ac_aux_dir as well) can be either absolute or relative,
  289 # depending on how configure is run.  This is pretty annoying, since
  290 # it makes $ac_aux_dir quite unusable in subdirectories: in the top
  291 # source directory, any form will work fine, but in subdirectories a
  292 # relative path needs to be adjusted first.
  293 #
  294 # $ac_aux_dir/missing
  295 #    fails when called from a subdirectory if $ac_aux_dir is relative
  296 # $top_srcdir/$ac_aux_dir/missing
  297 #    fails if $ac_aux_dir is absolute,
  298 #    fails when called from a subdirectory in a VPATH build with
  299 #          a relative $ac_aux_dir
  300 #
  301 # The reason of the latter failure is that $top_srcdir and $ac_aux_dir
  302 # are both prefixed by $srcdir.  In an in-source build this is usually
  303 # harmless because $srcdir is '.', but things will broke when you
  304 # start a VPATH build or use an absolute $srcdir.
  305 #
  306 # So we could use something similar to $top_srcdir/$ac_aux_dir/missing,
  307 # iff we strip the leading $srcdir from $ac_aux_dir.  That would be:
  308 #   am_aux_dir='\$(top_srcdir)/'`expr "$ac_aux_dir" : "$srcdir//*\(.*\)"`
  309 # and then we would define $MISSING as
  310 #   MISSING="\${SHELL} $am_aux_dir/missing"
  311 # This will work as long as MISSING is not called from configure, because
  312 # unfortunately $(top_srcdir) has no meaning in configure.
  313 # However there are other variables, like CC, which are often used in
  314 # configure, and could therefore not use this "fixed" $ac_aux_dir.
  315 #
  316 # Another solution, used here, is to always expand $ac_aux_dir to an
  317 # absolute PATH.  The drawback is that using absolute paths prevent a
  318 # configured tree to be moved without reconfiguration.
  319 
  320 AC_DEFUN([AM_AUX_DIR_EXPAND],
  321 [dnl Rely on autoconf to set up CDPATH properly.
  322 AC_PREREQ([2.50])dnl
  323 # expand $ac_aux_dir to an absolute path
  324 am_aux_dir=`cd $ac_aux_dir && pwd`
  325 ])
  326 
  327 # AM_CONDITIONAL                                            -*- Autoconf -*-
  328 
  329 # Copyright (C) 1997-2013 Free Software Foundation, Inc.
  330 #
  331 # This file is free software; the Free Software Foundation
  332 # gives unlimited permission to copy and/or distribute it,
  333 # with or without modifications, as long as this notice is preserved.
  334 
  335 # AM_CONDITIONAL(NAME, SHELL-CONDITION)
  336 # -------------------------------------
  337 # Define a conditional.
  338 AC_DEFUN([AM_CONDITIONAL],
  339 [AC_PREREQ([2.52])dnl
  340  m4_if([$1], [TRUE],  [AC_FATAL([$0: invalid condition: $1])],
  341        [$1], [FALSE], [AC_FATAL([$0: invalid condition: $1])])dnl
  342 AC_SUBST([$1_TRUE])dnl
  343 AC_SUBST([$1_FALSE])dnl
  344 _AM_SUBST_NOTMAKE([$1_TRUE])dnl
  345 _AM_SUBST_NOTMAKE([$1_FALSE])dnl
  346 m4_define([_AM_COND_VALUE_$1], [$2])dnl
  347 if $2; then
  348   $1_TRUE=
  349   $1_FALSE='#'
  350 else
  351   $1_TRUE='#'
  352   $1_FALSE=
  353 fi
  354 AC_CONFIG_COMMANDS_PRE(
  355 [if test -z "${$1_TRUE}" && test -z "${$1_FALSE}"; then
  356   AC_MSG_ERROR([[conditional "$1" was never defined.
  357 Usually this means the macro was only invoked conditionally.]])
  358 fi])])
  359 
  360 # Copyright (C) 1999-2013 Free Software Foundation, Inc.
  361 #
  362 # This file is free software; the Free Software Foundation
  363 # gives unlimited permission to copy and/or distribute it,
  364 # with or without modifications, as long as this notice is preserved.
  365 
  366 
  367 # There are a few dirty hacks below to avoid letting 'AC_PROG_CC' be
  368 # written in clear, in which case automake, when reading aclocal.m4,
  369 # will think it sees a *use*, and therefore will trigger all it's
  370 # C support machinery.  Also note that it means that autoscan, seeing
  371 # CC etc. in the Makefile, will ask for an AC_PROG_CC use...
  372 
  373 
  374 # _AM_DEPENDENCIES(NAME)
  375 # ----------------------
  376 # See how the compiler implements dependency checking.
  377 # NAME is "CC", "CXX", "OBJC", "OBJCXX", "UPC", or "GJC".
  378 # We try a few techniques and use that to set a single cache variable.
  379 #
  380 # We don't AC_REQUIRE the corresponding AC_PROG_CC since the latter was
  381 # modified to invoke _AM_DEPENDENCIES(CC); we would have a circular
  382 # dependency, and given that the user is not expected to run this macro,
  383 # just rely on AC_PROG_CC.
  384 AC_DEFUN([_AM_DEPENDENCIES],
  385 [AC_REQUIRE([AM_SET_DEPDIR])dnl
  386 AC_REQUIRE([AM_OUTPUT_DEPENDENCY_COMMANDS])dnl
  387 AC_REQUIRE([AM_MAKE_INCLUDE])dnl
  388 AC_REQUIRE([AM_DEP_TRACK])dnl
  389 
  390 m4_if([$1], [CC],   [depcc="$CC"   am_compiler_list=],
  391       [$1], [CXX],  [depcc="$CXX"  am_compiler_list=],
  392       [$1], [OBJC], [depcc="$OBJC" am_compiler_list='gcc3 gcc'],
  393       [$1], [OBJCXX], [depcc="$OBJCXX" am_compiler_list='gcc3 gcc'],
  394       [$1], [UPC],  [depcc="$UPC"  am_compiler_list=],
  395       [$1], [GCJ],  [depcc="$GCJ"  am_compiler_list='gcc3 gcc'],
  396                     [depcc="$$1"   am_compiler_list=])
  397 
  398 AC_CACHE_CHECK([dependency style of $depcc],
  399                [am_cv_$1_dependencies_compiler_type],
  400 [if test -z "$AMDEP_TRUE" && test -f "$am_depcomp"; then
  401   # We make a subdir and do the tests there.  Otherwise we can end up
  402   # making bogus files that we don't know about and never remove.  For
  403   # instance it was reported that on HP-UX the gcc test will end up
  404   # making a dummy file named 'D' -- because '-MD' means "put the output
  405   # in D".
  406   rm -rf conftest.dir
  407   mkdir conftest.dir
  408   # Copy depcomp to subdir because otherwise we won't find it if we're
  409   # using a relative directory.
  410   cp "$am_depcomp" conftest.dir
  411   cd conftest.dir
  412   # We will build objects and dependencies in a subdirectory because
  413   # it helps to detect inapplicable dependency modes.  For instance
  414   # both Tru64's cc and ICC support -MD to output dependencies as a
  415   # side effect of compilation, but ICC will put the dependencies in
  416   # the current directory while Tru64 will put them in the object
  417   # directory.
  418   mkdir sub
  419 
  420   am_cv_$1_dependencies_compiler_type=none
  421   if test "$am_compiler_list" = ""; then
  422      am_compiler_list=`sed -n ['s/^#*\([a-zA-Z0-9]*\))$/\1/p'] < ./depcomp`
  423   fi
  424   am__universal=false
  425   m4_case([$1], [CC],
  426     [case " $depcc " in #(
  427      *\ -arch\ *\ -arch\ *) am__universal=true ;;
  428      esac],
  429     [CXX],
  430     [case " $depcc " in #(
  431      *\ -arch\ *\ -arch\ *) am__universal=true ;;
  432      esac])
  433 
  434   for depmode in $am_compiler_list; do
  435     # Setup a source with many dependencies, because some compilers
  436     # like to wrap large dependency lists on column 80 (with \), and
  437     # we should not choose a depcomp mode which is confused by this.
  438     #
  439     # We need to recreate these files for each test, as the compiler may
  440     # overwrite some of them when testing with obscure command lines.
  441     # This happens at least with the AIX C compiler.
  442     : > sub/conftest.c
  443     for i in 1 2 3 4 5 6; do
  444       echo '#include "conftst'$i'.h"' >> sub/conftest.c
  445       # Using ": > sub/conftst$i.h" creates only sub/conftst1.h with
  446       # Solaris 10 /bin/sh.
  447       echo '/* dummy */' > sub/conftst$i.h
  448     done
  449     echo "${am__include} ${am__quote}sub/conftest.Po${am__quote}" > confmf
  450 
  451     # We check with '-c' and '-o' for the sake of the "dashmstdout"
  452     # mode.  It turns out that the SunPro C++ compiler does not properly
  453     # handle '-M -o', and we need to detect this.  Also, some Intel
  454     # versions had trouble with output in subdirs.
  455     am__obj=sub/conftest.${OBJEXT-o}
  456     am__minus_obj="-o $am__obj"
  457     case $depmode in
  458     gcc)
  459       # This depmode causes a compiler race in universal mode.
  460       test "$am__universal" = false || continue
  461       ;;
  462     nosideeffect)
  463       # After this tag, mechanisms are not by side-effect, so they'll
  464       # only be used when explicitly requested.
  465       if test "x$enable_dependency_tracking" = xyes; then
  466 	continue
  467       else
  468 	break
  469       fi
  470       ;;
  471     msvc7 | msvc7msys | msvisualcpp | msvcmsys)
  472       # This compiler won't grok '-c -o', but also, the minuso test has
  473       # not run yet.  These depmodes are late enough in the game, and
  474       # so weak that their functioning should not be impacted.
  475       am__obj=conftest.${OBJEXT-o}
  476       am__minus_obj=
  477       ;;
  478     none) break ;;
  479     esac
  480     if depmode=$depmode \
  481        source=sub/conftest.c object=$am__obj \
  482        depfile=sub/conftest.Po tmpdepfile=sub/conftest.TPo \
  483        $SHELL ./depcomp $depcc -c $am__minus_obj sub/conftest.c \
  484          >/dev/null 2>conftest.err &&
  485        grep sub/conftst1.h sub/conftest.Po > /dev/null 2>&1 &&
  486        grep sub/conftst6.h sub/conftest.Po > /dev/null 2>&1 &&
  487        grep $am__obj sub/conftest.Po > /dev/null 2>&1 &&
  488        ${MAKE-make} -s -f confmf > /dev/null 2>&1; then
  489       # icc doesn't choke on unknown options, it will just issue warnings
  490       # or remarks (even with -Werror).  So we grep stderr for any message
  491       # that says an option was ignored or not supported.
  492       # When given -MP, icc 7.0 and 7.1 complain thusly:
  493       #   icc: Command line warning: ignoring option '-M'; no argument required
  494       # The diagnosis changed in icc 8.0:
  495       #   icc: Command line remark: option '-MP' not supported
  496       if (grep 'ignoring option' conftest.err ||
  497           grep 'not supported' conftest.err) >/dev/null 2>&1; then :; else
  498         am_cv_$1_dependencies_compiler_type=$depmode
  499         break
  500       fi
  501     fi
  502   done
  503 
  504   cd ..
  505   rm -rf conftest.dir
  506 else
  507   am_cv_$1_dependencies_compiler_type=none
  508 fi
  509 ])
  510 AC_SUBST([$1DEPMODE], [depmode=$am_cv_$1_dependencies_compiler_type])
  511 AM_CONDITIONAL([am__fastdep$1], [
  512   test "x$enable_dependency_tracking" != xno \
  513   && test "$am_cv_$1_dependencies_compiler_type" = gcc3])
  514 ])
  515 
  516 
  517 # AM_SET_DEPDIR
  518 # -------------
  519 # Choose a directory name for dependency files.
  520 # This macro is AC_REQUIREd in _AM_DEPENDENCIES.
  521 AC_DEFUN([AM_SET_DEPDIR],
  522 [AC_REQUIRE([AM_SET_LEADING_DOT])dnl
  523 AC_SUBST([DEPDIR], ["${am__leading_dot}deps"])dnl
  524 ])
  525 
  526 
  527 # AM_DEP_TRACK
  528 # ------------
  529 AC_DEFUN([AM_DEP_TRACK],
  530 [AC_ARG_ENABLE([dependency-tracking], [dnl
  531 AS_HELP_STRING(
  532   [--enable-dependency-tracking],
  533   [do not reject slow dependency extractors])
  534 AS_HELP_STRING(
  535   [--disable-dependency-tracking],
  536   [speeds up one-time build])])
  537 if test "x$enable_dependency_tracking" != xno; then
  538   am_depcomp="$ac_aux_dir/depcomp"
  539   AMDEPBACKSLASH='\'
  540   am__nodep='_no'
  541 fi
  542 AM_CONDITIONAL([AMDEP], [test "x$enable_dependency_tracking" != xno])
  543 AC_SUBST([AMDEPBACKSLASH])dnl
  544 _AM_SUBST_NOTMAKE([AMDEPBACKSLASH])dnl
  545 AC_SUBST([am__nodep])dnl
  546 _AM_SUBST_NOTMAKE([am__nodep])dnl
  547 ])
  548 
  549 # Generate code to set up dependency tracking.              -*- Autoconf -*-
  550 
  551 # Copyright (C) 1999-2013 Free Software Foundation, Inc.
  552 #
  553 # This file is free software; the Free Software Foundation
  554 # gives unlimited permission to copy and/or distribute it,
  555 # with or without modifications, as long as this notice is preserved.
  556 
  557 
  558 # _AM_OUTPUT_DEPENDENCY_COMMANDS
  559 # ------------------------------
  560 AC_DEFUN([_AM_OUTPUT_DEPENDENCY_COMMANDS],
  561 [{
  562   # Older Autoconf quotes --file arguments for eval, but not when files
  563   # are listed without --file.  Let's play safe and only enable the eval
  564   # if we detect the quoting.
  565   case $CONFIG_FILES in
  566   *\'*) eval set x "$CONFIG_FILES" ;;
  567   *)   set x $CONFIG_FILES ;;
  568   esac
  569   shift
  570   for mf
  571   do
  572     # Strip MF so we end up with the name of the file.
  573     mf=`echo "$mf" | sed -e 's/:.*$//'`
  574     # Check whether this is an Automake generated Makefile or not.
  575     # We used to match only the files named 'Makefile.in', but
  576     # some people rename them; so instead we look at the file content.
  577     # Grep'ing the first line is not enough: some people post-process
  578     # each Makefile.in and add a new line on top of each file to say so.
  579     # Grep'ing the whole file is not good either: AIX grep has a line
  580     # limit of 2048, but all sed's we know have understand at least 4000.
  581     if sed -n 's,^#.*generated by automake.*,X,p' "$mf" | grep X >/dev/null 2>&1; then
  582       dirpart=`AS_DIRNAME("$mf")`
  583     else
  584       continue
  585     fi
  586     # Extract the definition of DEPDIR, am__include, and am__quote
  587     # from the Makefile without running 'make'.
  588     DEPDIR=`sed -n 's/^DEPDIR = //p' < "$mf"`
  589     test -z "$DEPDIR" && continue
  590     am__include=`sed -n 's/^am__include = //p' < "$mf"`
  591     test -z "$am__include" && continue
  592     am__quote=`sed -n 's/^am__quote = //p' < "$mf"`
  593     # Find all dependency output files, they are included files with
  594     # $(DEPDIR) in their names.  We invoke sed twice because it is the
  595     # simplest approach to changing $(DEPDIR) to its actual value in the
  596     # expansion.
  597     for file in `sed -n "
  598       s/^$am__include $am__quote\(.*(DEPDIR).*\)$am__quote"'$/\1/p' <"$mf" | \
  599 	 sed -e 's/\$(DEPDIR)/'"$DEPDIR"'/g'`; do
  600       # Make sure the directory exists.
  601       test -f "$dirpart/$file" && continue
  602       fdir=`AS_DIRNAME(["$file"])`
  603       AS_MKDIR_P([$dirpart/$fdir])
  604       # echo "creating $dirpart/$file"
  605       echo '# dummy' > "$dirpart/$file"
  606     done
  607   done
  608 }
  609 ])# _AM_OUTPUT_DEPENDENCY_COMMANDS
  610 
  611 
  612 # AM_OUTPUT_DEPENDENCY_COMMANDS
  613 # -----------------------------
  614 # This macro should only be invoked once -- use via AC_REQUIRE.
  615 #
  616 # This code is only required when automatic dependency tracking
  617 # is enabled.  FIXME.  This creates each '.P' file that we will
  618 # need in order to bootstrap the dependency handling code.
  619 AC_DEFUN([AM_OUTPUT_DEPENDENCY_COMMANDS],
  620 [AC_CONFIG_COMMANDS([depfiles],
  621      [test x"$AMDEP_TRUE" != x"" || _AM_OUTPUT_DEPENDENCY_COMMANDS],
  622      [AMDEP_TRUE="$AMDEP_TRUE" ac_aux_dir="$ac_aux_dir"])
  623 ])
  624 
  625 # Do all the work for Automake.                             -*- Autoconf -*-
  626 
  627 # Copyright (C) 1996-2013 Free Software Foundation, Inc.
  628 #
  629 # This file is free software; the Free Software Foundation
  630 # gives unlimited permission to copy and/or distribute it,
  631 # with or without modifications, as long as this notice is preserved.
  632 
  633 # This macro actually does too much.  Some checks are only needed if
  634 # your package does certain things.  But this isn't really a big deal.
  635 
  636 # AM_INIT_AUTOMAKE(PACKAGE, VERSION, [NO-DEFINE])
  637 # AM_INIT_AUTOMAKE([OPTIONS])
  638 # -----------------------------------------------
  639 # The call with PACKAGE and VERSION arguments is the old style
  640 # call (pre autoconf-2.50), which is being phased out.  PACKAGE
  641 # and VERSION should now be passed to AC_INIT and removed from
  642 # the call to AM_INIT_AUTOMAKE.
  643 # We support both call styles for the transition.  After
  644 # the next Automake release, Autoconf can make the AC_INIT
  645 # arguments mandatory, and then we can depend on a new Autoconf
  646 # release and drop the old call support.
  647 AC_DEFUN([AM_INIT_AUTOMAKE],
  648 [AC_PREREQ([2.65])dnl
  649 dnl Autoconf wants to disallow AM_ names.  We explicitly allow
  650 dnl the ones we care about.
  651 m4_pattern_allow([^AM_[A-Z]+FLAGS$])dnl
  652 AC_REQUIRE([AM_SET_CURRENT_AUTOMAKE_VERSION])dnl
  653 AC_REQUIRE([AC_PROG_INSTALL])dnl
  654 if test "`cd $srcdir && pwd`" != "`pwd`"; then
  655   # Use -I$(srcdir) only when $(srcdir) != ., so that make's output
  656   # is not polluted with repeated "-I."
  657   AC_SUBST([am__isrc], [' -I$(srcdir)'])_AM_SUBST_NOTMAKE([am__isrc])dnl
  658   # test to see if srcdir already configured
  659   if test -f $srcdir/config.status; then
  660     AC_MSG_ERROR([source directory already configured; run "make distclean" there first])
  661   fi
  662 fi
  663 
  664 # test whether we have cygpath
  665 if test -z "$CYGPATH_W"; then
  666   if (cygpath --version) >/dev/null 2>/dev/null; then
  667     CYGPATH_W='cygpath -w'
  668   else
  669     CYGPATH_W=echo
  670   fi
  671 fi
  672 AC_SUBST([CYGPATH_W])
  673 
  674 # Define the identity of the package.
  675 dnl Distinguish between old-style and new-style calls.
  676 m4_ifval([$2],
  677 [AC_DIAGNOSE([obsolete],
  678              [$0: two- and three-arguments forms are deprecated.])
  679 m4_ifval([$3], [_AM_SET_OPTION([no-define])])dnl
  680  AC_SUBST([PACKAGE], [$1])dnl
  681  AC_SUBST([VERSION], [$2])],
  682 [_AM_SET_OPTIONS([$1])dnl
  683 dnl Diagnose old-style AC_INIT with new-style AM_AUTOMAKE_INIT.
  684 m4_if(
  685   m4_ifdef([AC_PACKAGE_NAME], [ok]):m4_ifdef([AC_PACKAGE_VERSION], [ok]),
  686   [ok:ok],,
  687   [m4_fatal([AC_INIT should be called with package and version arguments])])dnl
  688  AC_SUBST([PACKAGE], ['AC_PACKAGE_TARNAME'])dnl
  689  AC_SUBST([VERSION], ['AC_PACKAGE_VERSION'])])dnl
  690 
  691 _AM_IF_OPTION([no-define],,
  692 [AC_DEFINE_UNQUOTED([PACKAGE], ["$PACKAGE"], [Name of package])
  693  AC_DEFINE_UNQUOTED([VERSION], ["$VERSION"], [Version number of package])])dnl
  694 
  695 # Some tools Automake needs.
  696 AC_REQUIRE([AM_SANITY_CHECK])dnl
  697 AC_REQUIRE([AC_ARG_PROGRAM])dnl
  698 AM_MISSING_PROG([ACLOCAL], [aclocal-${am__api_version}])
  699 AM_MISSING_PROG([AUTOCONF], [autoconf])
  700 AM_MISSING_PROG([AUTOMAKE], [automake-${am__api_version}])
  701 AM_MISSING_PROG([AUTOHEADER], [autoheader])
  702 AM_MISSING_PROG([MAKEINFO], [makeinfo])
  703 AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
  704 AC_REQUIRE([AM_PROG_INSTALL_STRIP])dnl
  705 AC_REQUIRE([AC_PROG_MKDIR_P])dnl
  706 # For better backward compatibility.  To be removed once Automake 1.9.x
  707 # dies out for good.  For more background, see:
  708 # <http://lists.gnu.org/archive/html/automake/2012-07/msg00001.html>
  709 # <http://lists.gnu.org/archive/html/automake/2012-07/msg00014.html>
  710 AC_SUBST([mkdir_p], ['$(MKDIR_P)'])
  711 # We need awk for the "check" target.  The system "awk" is bad on
  712 # some platforms.
  713 AC_REQUIRE([AC_PROG_AWK])dnl
  714 AC_REQUIRE([AC_PROG_MAKE_SET])dnl
  715 AC_REQUIRE([AM_SET_LEADING_DOT])dnl
  716 _AM_IF_OPTION([tar-ustar], [_AM_PROG_TAR([ustar])],
  717 	      [_AM_IF_OPTION([tar-pax], [_AM_PROG_TAR([pax])],
  718 			     [_AM_PROG_TAR([v7])])])
  719 _AM_IF_OPTION([no-dependencies],,
  720 [AC_PROVIDE_IFELSE([AC_PROG_CC],
  721 		  [_AM_DEPENDENCIES([CC])],
  722 		  [m4_define([AC_PROG_CC],
  723 			     m4_defn([AC_PROG_CC])[_AM_DEPENDENCIES([CC])])])dnl
  724 AC_PROVIDE_IFELSE([AC_PROG_CXX],
  725 		  [_AM_DEPENDENCIES([CXX])],
  726 		  [m4_define([AC_PROG_CXX],
  727 			     m4_defn([AC_PROG_CXX])[_AM_DEPENDENCIES([CXX])])])dnl
  728 AC_PROVIDE_IFELSE([AC_PROG_OBJC],
  729 		  [_AM_DEPENDENCIES([OBJC])],
  730 		  [m4_define([AC_PROG_OBJC],
  731 			     m4_defn([AC_PROG_OBJC])[_AM_DEPENDENCIES([OBJC])])])dnl
  732 AC_PROVIDE_IFELSE([AC_PROG_OBJCXX],
  733 		  [_AM_DEPENDENCIES([OBJCXX])],
  734 		  [m4_define([AC_PROG_OBJCXX],
  735 			     m4_defn([AC_PROG_OBJCXX])[_AM_DEPENDENCIES([OBJCXX])])])dnl
  736 ])
  737 AC_REQUIRE([AM_SILENT_RULES])dnl
  738 dnl The testsuite driver may need to know about EXEEXT, so add the
  739 dnl 'am__EXEEXT' conditional if _AM_COMPILER_EXEEXT was seen.  This
  740 dnl macro is hooked onto _AC_COMPILER_EXEEXT early, see below.
  741 AC_CONFIG_COMMANDS_PRE(dnl
  742 [m4_provide_if([_AM_COMPILER_EXEEXT],
  743   [AM_CONDITIONAL([am__EXEEXT], [test -n "$EXEEXT"])])])dnl
  744 ])
  745 
  746 dnl Hook into '_AC_COMPILER_EXEEXT' early to learn its expansion.  Do not
  747 dnl add the conditional right here, as _AC_COMPILER_EXEEXT may be further
  748 dnl mangled by Autoconf and run in a shell conditional statement.
  749 m4_define([_AC_COMPILER_EXEEXT],
  750 m4_defn([_AC_COMPILER_EXEEXT])[m4_provide([_AM_COMPILER_EXEEXT])])
  751 
  752 
  753 # When config.status generates a header, we must update the stamp-h file.
  754 # This file resides in the same directory as the config header
  755 # that is generated.  The stamp files are numbered to have different names.
  756 
  757 # Autoconf calls _AC_AM_CONFIG_HEADER_HOOK (when defined) in the
  758 # loop where config.status creates the headers, so we can generate
  759 # our stamp files there.
  760 AC_DEFUN([_AC_AM_CONFIG_HEADER_HOOK],
  761 [# Compute $1's index in $config_headers.
  762 _am_arg=$1
  763 _am_stamp_count=1
  764 for _am_header in $config_headers :; do
  765   case $_am_header in
  766     $_am_arg | $_am_arg:* )
  767       break ;;
  768     * )
  769       _am_stamp_count=`expr $_am_stamp_count + 1` ;;
  770   esac
  771 done
  772 echo "timestamp for $_am_arg" >`AS_DIRNAME(["$_am_arg"])`/stamp-h[]$_am_stamp_count])
  773 
  774 # Copyright (C) 2001-2013 Free Software Foundation, Inc.
  775 #
  776 # This file is free software; the Free Software Foundation
  777 # gives unlimited permission to copy and/or distribute it,
  778 # with or without modifications, as long as this notice is preserved.
  779 
  780 # AM_PROG_INSTALL_SH
  781 # ------------------
  782 # Define $install_sh.
  783 AC_DEFUN([AM_PROG_INSTALL_SH],
  784 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
  785 if test x"${install_sh}" != xset; then
  786   case $am_aux_dir in
  787   *\ * | *\	*)
  788     install_sh="\${SHELL} '$am_aux_dir/install-sh'" ;;
  789   *)
  790     install_sh="\${SHELL} $am_aux_dir/install-sh"
  791   esac
  792 fi
  793 AC_SUBST([install_sh])])
  794 
  795 # Copyright (C) 2003-2013 Free Software Foundation, Inc.
  796 #
  797 # This file is free software; the Free Software Foundation
  798 # gives unlimited permission to copy and/or distribute it,
  799 # with or without modifications, as long as this notice is preserved.
  800 
  801 # Check whether the underlying file-system supports filenames
  802 # with a leading dot.  For instance MS-DOS doesn't.
  803 AC_DEFUN([AM_SET_LEADING_DOT],
  804 [rm -rf .tst 2>/dev/null
  805 mkdir .tst 2>/dev/null
  806 if test -d .tst; then
  807   am__leading_dot=.
  808 else
  809   am__leading_dot=_
  810 fi
  811 rmdir .tst 2>/dev/null
  812 AC_SUBST([am__leading_dot])])
  813 
  814 # Check to see how 'make' treats includes.	            -*- Autoconf -*-
  815 
  816 # Copyright (C) 2001-2013 Free Software Foundation, Inc.
  817 #
  818 # This file is free software; the Free Software Foundation
  819 # gives unlimited permission to copy and/or distribute it,
  820 # with or without modifications, as long as this notice is preserved.
  821 
  822 # AM_MAKE_INCLUDE()
  823 # -----------------
  824 # Check to see how make treats includes.
  825 AC_DEFUN([AM_MAKE_INCLUDE],
  826 [am_make=${MAKE-make}
  827 cat > confinc << 'END'
  828 am__doit:
  829 	@echo this is the am__doit target
  830 .PHONY: am__doit
  831 END
  832 # If we don't find an include directive, just comment out the code.
  833 AC_MSG_CHECKING([for style of include used by $am_make])
  834 am__include="#"
  835 am__quote=
  836 _am_result=none
  837 # First try GNU make style include.
  838 echo "include confinc" > confmf
  839 # Ignore all kinds of additional output from 'make'.
  840 case `$am_make -s -f confmf 2> /dev/null` in #(
  841 *the\ am__doit\ target*)
  842   am__include=include
  843   am__quote=
  844   _am_result=GNU
  845   ;;
  846 esac
  847 # Now try BSD make style include.
  848 if test "$am__include" = "#"; then
  849    echo '.include "confinc"' > confmf
  850    case `$am_make -s -f confmf 2> /dev/null` in #(
  851    *the\ am__doit\ target*)
  852      am__include=.include
  853      am__quote="\""
  854      _am_result=BSD
  855      ;;
  856    esac
  857 fi
  858 AC_SUBST([am__include])
  859 AC_SUBST([am__quote])
  860 AC_MSG_RESULT([$_am_result])
  861 rm -f confinc confmf
  862 ])
  863 
  864 # Fake the existence of programs that GNU maintainers use.  -*- Autoconf -*-
  865 
  866 # Copyright (C) 1997-2013 Free Software Foundation, Inc.
  867 #
  868 # This file is free software; the Free Software Foundation
  869 # gives unlimited permission to copy and/or distribute it,
  870 # with or without modifications, as long as this notice is preserved.
  871 
  872 # AM_MISSING_PROG(NAME, PROGRAM)
  873 # ------------------------------
  874 AC_DEFUN([AM_MISSING_PROG],
  875 [AC_REQUIRE([AM_MISSING_HAS_RUN])
  876 $1=${$1-"${am_missing_run}$2"}
  877 AC_SUBST($1)])
  878 
  879 # AM_MISSING_HAS_RUN
  880 # ------------------
  881 # Define MISSING if not defined so far and test if it is modern enough.
  882 # If it is, set am_missing_run to use it, otherwise, to nothing.
  883 AC_DEFUN([AM_MISSING_HAS_RUN],
  884 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
  885 AC_REQUIRE_AUX_FILE([missing])dnl
  886 if test x"${MISSING+set}" != xset; then
  887   case $am_aux_dir in
  888   *\ * | *\	*)
  889     MISSING="\${SHELL} \"$am_aux_dir/missing\"" ;;
  890   *)
  891     MISSING="\${SHELL} $am_aux_dir/missing" ;;
  892   esac
  893 fi
  894 # Use eval to expand $SHELL
  895 if eval "$MISSING --is-lightweight"; then
  896   am_missing_run="$MISSING "
  897 else
  898   am_missing_run=
  899   AC_MSG_WARN(['missing' script is too old or missing])
  900 fi
  901 ])
  902 
  903 #  -*- Autoconf -*-
  904 # Obsolete and "removed" macros, that must however still report explicit
  905 # error messages when used, to smooth transition.
  906 #
  907 # Copyright (C) 1996-2013 Free Software Foundation, Inc.
  908 #
  909 # This file is free software; the Free Software Foundation
  910 # gives unlimited permission to copy and/or distribute it,
  911 # with or without modifications, as long as this notice is preserved.
  912 
  913 AC_DEFUN([AM_CONFIG_HEADER],
  914 [AC_DIAGNOSE([obsolete],
  915 ['$0': this macro is obsolete.
  916 You should use the 'AC][_CONFIG_HEADERS' macro instead.])dnl
  917 AC_CONFIG_HEADERS($@)])
  918 
  919 AC_DEFUN([AM_PROG_CC_STDC],
  920 [AC_PROG_CC
  921 am_cv_prog_cc_stdc=$ac_cv_prog_cc_stdc
  922 AC_DIAGNOSE([obsolete],
  923 ['$0': this macro is obsolete.
  924 You should simply use the 'AC][_PROG_CC' macro instead.
  925 Also, your code should no longer depend upon 'am_cv_prog_cc_stdc',
  926 but upon 'ac_cv_prog_cc_stdc'.])])
  927 
  928 AC_DEFUN([AM_C_PROTOTYPES],
  929          [AC_FATAL([automatic de-ANSI-fication support has been removed])])
  930 AU_DEFUN([fp_C_PROTOTYPES], [AM_C_PROTOTYPES])
  931 
  932 # Helper functions for option handling.                     -*- Autoconf -*-
  933 
  934 # Copyright (C) 2001-2013 Free Software Foundation, Inc.
  935 #
  936 # This file is free software; the Free Software Foundation
  937 # gives unlimited permission to copy and/or distribute it,
  938 # with or without modifications, as long as this notice is preserved.
  939 
  940 # _AM_MANGLE_OPTION(NAME)
  941 # -----------------------
  942 AC_DEFUN([_AM_MANGLE_OPTION],
  943 [[_AM_OPTION_]m4_bpatsubst($1, [[^a-zA-Z0-9_]], [_])])
  944 
  945 # _AM_SET_OPTION(NAME)
  946 # --------------------
  947 # Set option NAME.  Presently that only means defining a flag for this option.
  948 AC_DEFUN([_AM_SET_OPTION],
  949 [m4_define(_AM_MANGLE_OPTION([$1]), [1])])
  950 
  951 # _AM_SET_OPTIONS(OPTIONS)
  952 # ------------------------
  953 # OPTIONS is a space-separated list of Automake options.
  954 AC_DEFUN([_AM_SET_OPTIONS],
  955 [m4_foreach_w([_AM_Option], [$1], [_AM_SET_OPTION(_AM_Option)])])
  956 
  957 # _AM_IF_OPTION(OPTION, IF-SET, [IF-NOT-SET])
  958 # -------------------------------------------
  959 # Execute IF-SET if OPTION is set, IF-NOT-SET otherwise.
  960 AC_DEFUN([_AM_IF_OPTION],
  961 [m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])])
  962 
  963 # Check to make sure that the build environment is sane.    -*- Autoconf -*-
  964 
  965 # Copyright (C) 1996-2013 Free Software Foundation, Inc.
  966 #
  967 # This file is free software; the Free Software Foundation
  968 # gives unlimited permission to copy and/or distribute it,
  969 # with or without modifications, as long as this notice is preserved.
  970 
  971 # AM_SANITY_CHECK
  972 # ---------------
  973 AC_DEFUN([AM_SANITY_CHECK],
  974 [AC_MSG_CHECKING([whether build environment is sane])
  975 # Reject unsafe characters in $srcdir or the absolute working directory
  976 # name.  Accept space and tab only in the latter.
  977 am_lf='
  978 '
  979 case `pwd` in
  980   *[[\\\"\#\$\&\'\`$am_lf]]*)
  981     AC_MSG_ERROR([unsafe absolute working directory name]);;
  982 esac
  983 case $srcdir in
  984   *[[\\\"\#\$\&\'\`$am_lf\ \	]]*)
  985     AC_MSG_ERROR([unsafe srcdir value: '$srcdir']);;
  986 esac
  987 
  988 # Do 'set' in a subshell so we don't clobber the current shell's
  989 # arguments.  Must try -L first in case configure is actually a
  990 # symlink; some systems play weird games with the mod time of symlinks
  991 # (eg FreeBSD returns the mod time of the symlink's containing
  992 # directory).
  993 if (
  994    am_has_slept=no
  995    for am_try in 1 2; do
  996      echo "timestamp, slept: $am_has_slept" > conftest.file
  997      set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null`
  998      if test "$[*]" = "X"; then
  999 	# -L didn't work.
 1000 	set X `ls -t "$srcdir/configure" conftest.file`
 1001      fi
 1002      if test "$[*]" != "X $srcdir/configure conftest.file" \
 1003 	&& test "$[*]" != "X conftest.file $srcdir/configure"; then
 1004 
 1005 	# If neither matched, then we have a broken ls.  This can happen
 1006 	# if, for instance, CONFIG_SHELL is bash and it inherits a
 1007 	# broken ls alias from the environment.  This has actually
 1008 	# happened.  Such a system could not be considered "sane".
 1009 	AC_MSG_ERROR([ls -t appears to fail.  Make sure there is not a broken
 1010   alias in your environment])
 1011      fi
 1012      if test "$[2]" = conftest.file || test $am_try -eq 2; then
 1013        break
 1014      fi
 1015      # Just in case.
 1016      sleep 1
 1017      am_has_slept=yes
 1018    done
 1019    test "$[2]" = conftest.file
 1020    )
 1021 then
 1022    # Ok.
 1023    :
 1024 else
 1025    AC_MSG_ERROR([newly created file is older than distributed files!
 1026 Check your system clock])
 1027 fi
 1028 AC_MSG_RESULT([yes])
 1029 # If we didn't sleep, we still need to ensure time stamps of config.status and
 1030 # generated files are strictly newer.
 1031 am_sleep_pid=
 1032 if grep 'slept: no' conftest.file >/dev/null 2>&1; then
 1033   ( sleep 1 ) &
 1034   am_sleep_pid=$!
 1035 fi
 1036 AC_CONFIG_COMMANDS_PRE(
 1037   [AC_MSG_CHECKING([that generated files are newer than configure])
 1038    if test -n "$am_sleep_pid"; then
 1039      # Hide warnings about reused PIDs.
 1040      wait $am_sleep_pid 2>/dev/null
 1041    fi
 1042    AC_MSG_RESULT([done])])
 1043 rm -f conftest.file
 1044 ])
 1045 
 1046 # Copyright (C) 2009-2013 Free Software Foundation, Inc.
 1047 #
 1048 # This file is free software; the Free Software Foundation
 1049 # gives unlimited permission to copy and/or distribute it,
 1050 # with or without modifications, as long as this notice is preserved.
 1051 
 1052 # AM_SILENT_RULES([DEFAULT])
 1053 # --------------------------
 1054 # Enable less verbose build rules; with the default set to DEFAULT
 1055 # ("yes" being less verbose, "no" or empty being verbose).
 1056 AC_DEFUN([AM_SILENT_RULES],
 1057 [AC_ARG_ENABLE([silent-rules], [dnl
 1058 AS_HELP_STRING(
 1059   [--enable-silent-rules],
 1060   [less verbose build output (undo: "make V=1")])
 1061 AS_HELP_STRING(
 1062   [--disable-silent-rules],
 1063   [verbose build output (undo: "make V=0")])dnl
 1064 ])
 1065 case $enable_silent_rules in @%:@ (((
 1066   yes) AM_DEFAULT_VERBOSITY=0;;
 1067    no) AM_DEFAULT_VERBOSITY=1;;
 1068     *) AM_DEFAULT_VERBOSITY=m4_if([$1], [yes], [0], [1]);;
 1069 esac
 1070 dnl
 1071 dnl A few 'make' implementations (e.g., NonStop OS and NextStep)
 1072 dnl do not support nested variable expansions.
 1073 dnl See automake bug#9928 and bug#10237.
 1074 am_make=${MAKE-make}
 1075 AC_CACHE_CHECK([whether $am_make supports nested variables],
 1076    [am_cv_make_support_nested_variables],
 1077    [if AS_ECHO([['TRUE=$(BAR$(V))
 1078 BAR0=false
 1079 BAR1=true
 1080 V=1
 1081 am__doit:
 1082 	@$(TRUE)
 1083 .PHONY: am__doit']]) | $am_make -f - >/dev/null 2>&1; then
 1084   am_cv_make_support_nested_variables=yes
 1085 else
 1086   am_cv_make_support_nested_variables=no
 1087 fi])
 1088 if test $am_cv_make_support_nested_variables = yes; then
 1089   dnl Using '$V' instead of '$(V)' breaks IRIX make.
 1090   AM_V='$(V)'
 1091   AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
 1092 else
 1093   AM_V=$AM_DEFAULT_VERBOSITY
 1094   AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY
 1095 fi
 1096 AC_SUBST([AM_V])dnl
 1097 AM_SUBST_NOTMAKE([AM_V])dnl
 1098 AC_SUBST([AM_DEFAULT_V])dnl
 1099 AM_SUBST_NOTMAKE([AM_DEFAULT_V])dnl
 1100 AC_SUBST([AM_DEFAULT_VERBOSITY])dnl
 1101 AM_BACKSLASH='\'
 1102 AC_SUBST([AM_BACKSLASH])dnl
 1103 _AM_SUBST_NOTMAKE([AM_BACKSLASH])dnl
 1104 ])
 1105 
 1106 # Copyright (C) 2001-2013 Free Software Foundation, Inc.
 1107 #
 1108 # This file is free software; the Free Software Foundation
 1109 # gives unlimited permission to copy and/or distribute it,
 1110 # with or without modifications, as long as this notice is preserved.
 1111 
 1112 # AM_PROG_INSTALL_STRIP
 1113 # ---------------------
 1114 # One issue with vendor 'install' (even GNU) is that you can't
 1115 # specify the program used to strip binaries.  This is especially
 1116 # annoying in cross-compiling environments, where the build's strip
 1117 # is unlikely to handle the host's binaries.
 1118 # Fortunately install-sh will honor a STRIPPROG variable, so we
 1119 # always use install-sh in "make install-strip", and initialize
 1120 # STRIPPROG with the value of the STRIP variable (set by the user).
 1121 AC_DEFUN([AM_PROG_INSTALL_STRIP],
 1122 [AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
 1123 # Installed binaries are usually stripped using 'strip' when the user
 1124 # run "make install-strip".  However 'strip' might not be the right
 1125 # tool to use in cross-compilation environments, therefore Automake
 1126 # will honor the 'STRIP' environment variable to overrule this program.
 1127 dnl Don't test for $cross_compiling = yes, because it might be 'maybe'.
 1128 if test "$cross_compiling" != no; then
 1129   AC_CHECK_TOOL([STRIP], [strip], :)
 1130 fi
 1131 INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
 1132 AC_SUBST([INSTALL_STRIP_PROGRAM])])
 1133 
 1134 # Copyright (C) 2006-2013 Free Software Foundation, Inc.
 1135 #
 1136 # This file is free software; the Free Software Foundation
 1137 # gives unlimited permission to copy and/or distribute it,
 1138 # with or without modifications, as long as this notice is preserved.
 1139 
 1140 # _AM_SUBST_NOTMAKE(VARIABLE)
 1141 # ---------------------------
 1142 # Prevent Automake from outputting VARIABLE = @VARIABLE@ in Makefile.in.
 1143 # This macro is traced by Automake.
 1144 AC_DEFUN([_AM_SUBST_NOTMAKE])
 1145 
 1146 # AM_SUBST_NOTMAKE(VARIABLE)
 1147 # --------------------------
 1148 # Public sister of _AM_SUBST_NOTMAKE.
 1149 AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE($@)])
 1150 
 1151 # Check how to create a tarball.                            -*- Autoconf -*-
 1152 
 1153 # Copyright (C) 2004-2013 Free Software Foundation, Inc.
 1154 #
 1155 # This file is free software; the Free Software Foundation
 1156 # gives unlimited permission to copy and/or distribute it,
 1157 # with or without modifications, as long as this notice is preserved.
 1158 
 1159 # _AM_PROG_TAR(FORMAT)
 1160 # --------------------
 1161 # Check how to create a tarball in format FORMAT.
 1162 # FORMAT should be one of 'v7', 'ustar', or 'pax'.
 1163 #
 1164 # Substitute a variable $(am__tar) that is a command
 1165 # writing to stdout a FORMAT-tarball containing the directory
 1166 # $tardir.
 1167 #     tardir=directory && $(am__tar) > result.tar
 1168 #
 1169 # Substitute a variable $(am__untar) that extract such
 1170 # a tarball read from stdin.
 1171 #     $(am__untar) < result.tar
 1172 #
 1173 AC_DEFUN([_AM_PROG_TAR],
 1174 [# Always define AMTAR for backward compatibility.  Yes, it's still used
 1175 # in the wild :-(  We should find a proper way to deprecate it ...
 1176 AC_SUBST([AMTAR], ['$${TAR-tar}'])
 1177 
 1178 # We'll loop over all known methods to create a tar archive until one works.
 1179 _am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none'
 1180 
 1181 m4_if([$1], [v7],
 1182   [am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'],
 1183 
 1184   [m4_case([$1],
 1185     [ustar],
 1186      [# The POSIX 1988 'ustar' format is defined with fixed-size fields.
 1187       # There is notably a 21 bits limit for the UID and the GID.  In fact,
 1188       # the 'pax' utility can hang on bigger UID/GID (see automake bug#8343
 1189       # and bug#13588).
 1190       am_max_uid=2097151 # 2^21 - 1
 1191       am_max_gid=$am_max_uid
 1192       # The $UID and $GID variables are not portable, so we need to resort
 1193       # to the POSIX-mandated id(1) utility.  Errors in the 'id' calls
 1194       # below are definitely unexpected, so allow the users to see them
 1195       # (that is, avoid stderr redirection).
 1196       am_uid=`id -u || echo unknown`
 1197       am_gid=`id -g || echo unknown`
 1198       AC_MSG_CHECKING([whether UID '$am_uid' is supported by ustar format])
 1199       if test $am_uid -le $am_max_uid; then
 1200          AC_MSG_RESULT([yes])
 1201       else
 1202          AC_MSG_RESULT([no])
 1203          _am_tools=none
 1204       fi
 1205       AC_MSG_CHECKING([whether GID '$am_gid' is supported by ustar format])
 1206       if test $am_gid -le $am_max_gid; then
 1207          AC_MSG_RESULT([yes])
 1208       else
 1209         AC_MSG_RESULT([no])
 1210         _am_tools=none
 1211       fi],
 1212 
 1213   [pax],
 1214     [],
 1215 
 1216   [m4_fatal([Unknown tar format])])
 1217 
 1218   AC_MSG_CHECKING([how to create a $1 tar archive])
 1219 
 1220   # Go ahead even if we have the value already cached.  We do so because we
 1221   # need to set the values for the 'am__tar' and 'am__untar' variables.
 1222   _am_tools=${am_cv_prog_tar_$1-$_am_tools}
 1223 
 1224   for _am_tool in $_am_tools; do
 1225     case $_am_tool in
 1226     gnutar)
 1227       for _am_tar in tar gnutar gtar; do
 1228         AM_RUN_LOG([$_am_tar --version]) && break
 1229       done
 1230       am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"'
 1231       am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"'
 1232       am__untar="$_am_tar -xf -"
 1233       ;;
 1234     plaintar)
 1235       # Must skip GNU tar: if it does not support --format= it doesn't create
 1236       # ustar tarball either.
 1237       (tar --version) >/dev/null 2>&1 && continue
 1238       am__tar='tar chf - "$$tardir"'
 1239       am__tar_='tar chf - "$tardir"'
 1240       am__untar='tar xf -'
 1241       ;;
 1242     pax)
 1243       am__tar='pax -L -x $1 -w "$$tardir"'
 1244       am__tar_='pax -L -x $1 -w "$tardir"'
 1245       am__untar='pax -r'
 1246       ;;
 1247     cpio)
 1248       am__tar='find "$$tardir" -print | cpio -o -H $1 -L'
 1249       am__tar_='find "$tardir" -print | cpio -o -H $1 -L'
 1250       am__untar='cpio -i -H $1 -d'
 1251       ;;
 1252     none)
 1253       am__tar=false
 1254       am__tar_=false
 1255       am__untar=false
 1256       ;;
 1257     esac
 1258 
 1259     # If the value was cached, stop now.  We just wanted to have am__tar
 1260     # and am__untar set.
 1261     test -n "${am_cv_prog_tar_$1}" && break
 1262 
 1263     # tar/untar a dummy directory, and stop if the command works.
 1264     rm -rf conftest.dir
 1265     mkdir conftest.dir
 1266     echo GrepMe > conftest.dir/file
 1267     AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar])
 1268     rm -rf conftest.dir
 1269     if test -s conftest.tar; then
 1270       AM_RUN_LOG([$am__untar <conftest.tar])
 1271       AM_RUN_LOG([cat conftest.dir/file])
 1272       grep GrepMe conftest.dir/file >/dev/null 2>&1 && break
 1273     fi
 1274   done
 1275   rm -rf conftest.dir
 1276 
 1277   AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool])
 1278   AC_MSG_RESULT([$am_cv_prog_tar_$1])])
 1279 
 1280 AC_SUBST([am__tar])
 1281 AC_SUBST([am__untar])
 1282 ]) # _AM_PROG_TAR
 1283