File:  [ELWIX - Embedded LightWeight unIX -] / embedaddon / lighttpd / aclocal.m4
Revision 1.1.1.3 (vendor branch): download - view: text, annotated - select for diffs - revision graph
Wed Nov 2 10:35:00 2016 UTC (7 years, 7 months ago) by misho
Branches: lighttpd, MAIN
CVS tags: v1_4_41p8, HEAD
lighttpd 1.4.41

    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],,
   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: dnl pkg.m4 - Macros to locate and utilise pkg-config.   -*- Autoconf -*-
   24: dnl serial 11 (pkg-config-0.29)
   25: dnl
   26: dnl Copyright © 2004 Scott James Remnant <scott@netsplit.com>.
   27: dnl Copyright © 2012-2015 Dan Nicholson <dbn.lists@gmail.com>
   28: dnl
   29: dnl This program is free software; you can redistribute it and/or modify
   30: dnl it under the terms of the GNU General Public License as published by
   31: dnl the Free Software Foundation; either version 2 of the License, or
   32: dnl (at your option) any later version.
   33: dnl
   34: dnl This program is distributed in the hope that it will be useful, but
   35: dnl WITHOUT ANY WARRANTY; without even the implied warranty of
   36: dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
   37: dnl General Public License for more details.
   38: dnl
   39: dnl You should have received a copy of the GNU General Public License
   40: dnl along with this program; if not, write to the Free Software
   41: dnl Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
   42: dnl 02111-1307, USA.
   43: dnl
   44: dnl As a special exception to the GNU General Public License, if you
   45: dnl distribute this file as part of a program that contains a
   46: dnl configuration script generated by Autoconf, you may include it under
   47: dnl the same distribution terms that you use for the rest of that
   48: dnl program.
   49: 
   50: dnl PKG_PREREQ(MIN-VERSION)
   51: dnl -----------------------
   52: dnl Since: 0.29
   53: dnl
   54: dnl Verify that the version of the pkg-config macros are at least
   55: dnl MIN-VERSION. Unlike PKG_PROG_PKG_CONFIG, which checks the user's
   56: dnl installed version of pkg-config, this checks the developer's version
   57: dnl of pkg.m4 when generating configure.
   58: dnl
   59: dnl To ensure that this macro is defined, also add:
   60: dnl m4_ifndef([PKG_PREREQ],
   61: dnl     [m4_fatal([must install pkg-config 0.29 or later before running autoconf/autogen])])
   62: dnl
   63: dnl See the "Since" comment for each macro you use to see what version
   64: dnl of the macros you require.
   65: m4_defun([PKG_PREREQ],
   66: [m4_define([PKG_MACROS_VERSION], [0.29])
   67: m4_if(m4_version_compare(PKG_MACROS_VERSION, [$1]), -1,
   68:     [m4_fatal([pkg.m4 version $1 or higher is required but ]PKG_MACROS_VERSION[ found])])
   69: ])dnl PKG_PREREQ
   70: 
   71: dnl PKG_PROG_PKG_CONFIG([MIN-VERSION])
   72: dnl ----------------------------------
   73: dnl Since: 0.16
   74: dnl
   75: dnl Search for the pkg-config tool and set the PKG_CONFIG variable to
   76: dnl first found in the path. Checks that the version of pkg-config found
   77: dnl is at least MIN-VERSION. If MIN-VERSION is not specified, 0.9.0 is
   78: dnl used since that's the first version where most current features of
   79: dnl pkg-config existed.
   80: AC_DEFUN([PKG_PROG_PKG_CONFIG],
   81: [m4_pattern_forbid([^_?PKG_[A-Z_]+$])
   82: m4_pattern_allow([^PKG_CONFIG(_(PATH|LIBDIR|SYSROOT_DIR|ALLOW_SYSTEM_(CFLAGS|LIBS)))?$])
   83: m4_pattern_allow([^PKG_CONFIG_(DISABLE_UNINSTALLED|TOP_BUILD_DIR|DEBUG_SPEW)$])
   84: AC_ARG_VAR([PKG_CONFIG], [path to pkg-config utility])
   85: AC_ARG_VAR([PKG_CONFIG_PATH], [directories to add to pkg-config's search path])
   86: AC_ARG_VAR([PKG_CONFIG_LIBDIR], [path overriding pkg-config's built-in search path])
   87: 
   88: if test "x$ac_cv_env_PKG_CONFIG_set" != "xset"; then
   89: 	AC_PATH_TOOL([PKG_CONFIG], [pkg-config])
   90: fi
   91: if test -n "$PKG_CONFIG"; then
   92: 	_pkg_min_version=m4_default([$1], [0.9.0])
   93: 	AC_MSG_CHECKING([pkg-config is at least version $_pkg_min_version])
   94: 	if $PKG_CONFIG --atleast-pkgconfig-version $_pkg_min_version; then
   95: 		AC_MSG_RESULT([yes])
   96: 	else
   97: 		AC_MSG_RESULT([no])
   98: 		PKG_CONFIG=""
   99: 	fi
  100: fi[]dnl
  101: ])dnl PKG_PROG_PKG_CONFIG
  102: 
  103: dnl PKG_CHECK_EXISTS(MODULES, [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
  104: dnl -------------------------------------------------------------------
  105: dnl Since: 0.18
  106: dnl
  107: dnl Check to see whether a particular set of modules exists. Similar to
  108: dnl PKG_CHECK_MODULES(), but does not set variables or print errors.
  109: dnl
  110: dnl Please remember that m4 expands AC_REQUIRE([PKG_PROG_PKG_CONFIG])
  111: dnl only at the first occurence in configure.ac, so if the first place
  112: dnl it's called might be skipped (such as if it is within an "if", you
  113: dnl have to call PKG_CHECK_EXISTS manually
  114: AC_DEFUN([PKG_CHECK_EXISTS],
  115: [AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
  116: if test -n "$PKG_CONFIG" && \
  117:     AC_RUN_LOG([$PKG_CONFIG --exists --print-errors "$1"]); then
  118:   m4_default([$2], [:])
  119: m4_ifvaln([$3], [else
  120:   $3])dnl
  121: fi])
  122: 
  123: dnl _PKG_CONFIG([VARIABLE], [COMMAND], [MODULES])
  124: dnl ---------------------------------------------
  125: dnl Internal wrapper calling pkg-config via PKG_CONFIG and setting
  126: dnl pkg_failed based on the result.
  127: m4_define([_PKG_CONFIG],
  128: [if test -n "$$1"; then
  129:     pkg_cv_[]$1="$$1"
  130:  elif test -n "$PKG_CONFIG"; then
  131:     PKG_CHECK_EXISTS([$3],
  132:                      [pkg_cv_[]$1=`$PKG_CONFIG --[]$2 "$3" 2>/dev/null`
  133: 		      test "x$?" != "x0" && pkg_failed=yes ],
  134: 		     [pkg_failed=yes])
  135:  else
  136:     pkg_failed=untried
  137: fi[]dnl
  138: ])dnl _PKG_CONFIG
  139: 
  140: dnl _PKG_SHORT_ERRORS_SUPPORTED
  141: dnl ---------------------------
  142: dnl Internal check to see if pkg-config supports short errors.
  143: AC_DEFUN([_PKG_SHORT_ERRORS_SUPPORTED],
  144: [AC_REQUIRE([PKG_PROG_PKG_CONFIG])
  145: if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
  146:         _pkg_short_errors_supported=yes
  147: else
  148:         _pkg_short_errors_supported=no
  149: fi[]dnl
  150: ])dnl _PKG_SHORT_ERRORS_SUPPORTED
  151: 
  152: 
  153: dnl PKG_CHECK_MODULES(VARIABLE-PREFIX, MODULES, [ACTION-IF-FOUND],
  154: dnl   [ACTION-IF-NOT-FOUND])
  155: dnl --------------------------------------------------------------
  156: dnl Since: 0.4.0
  157: dnl
  158: dnl Note that if there is a possibility the first call to
  159: dnl PKG_CHECK_MODULES might not happen, you should be sure to include an
  160: dnl explicit call to PKG_PROG_PKG_CONFIG in your configure.ac
  161: AC_DEFUN([PKG_CHECK_MODULES],
  162: [AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
  163: AC_ARG_VAR([$1][_CFLAGS], [C compiler flags for $1, overriding pkg-config])dnl
  164: AC_ARG_VAR([$1][_LIBS], [linker flags for $1, overriding pkg-config])dnl
  165: 
  166: pkg_failed=no
  167: AC_MSG_CHECKING([for $1])
  168: 
  169: _PKG_CONFIG([$1][_CFLAGS], [cflags], [$2])
  170: _PKG_CONFIG([$1][_LIBS], [libs], [$2])
  171: 
  172: m4_define([_PKG_TEXT], [Alternatively, you may set the environment variables $1[]_CFLAGS
  173: and $1[]_LIBS to avoid the need to call pkg-config.
  174: See the pkg-config man page for more details.])
  175: 
  176: if test $pkg_failed = yes; then
  177:    	AC_MSG_RESULT([no])
  178:         _PKG_SHORT_ERRORS_SUPPORTED
  179:         if test $_pkg_short_errors_supported = yes; then
  180: 	        $1[]_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "$2" 2>&1`
  181:         else 
  182: 	        $1[]_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "$2" 2>&1`
  183:         fi
  184: 	# Put the nasty error message in config.log where it belongs
  185: 	echo "$$1[]_PKG_ERRORS" >&AS_MESSAGE_LOG_FD
  186: 
  187: 	m4_default([$4], [AC_MSG_ERROR(
  188: [Package requirements ($2) were not met:
  189: 
  190: $$1_PKG_ERRORS
  191: 
  192: Consider adjusting the PKG_CONFIG_PATH environment variable if you
  193: installed software in a non-standard prefix.
  194: 
  195: _PKG_TEXT])[]dnl
  196:         ])
  197: elif test $pkg_failed = untried; then
  198:      	AC_MSG_RESULT([no])
  199: 	m4_default([$4], [AC_MSG_FAILURE(
  200: [The pkg-config script could not be found or is too old.  Make sure it
  201: is in your PATH or set the PKG_CONFIG environment variable to the full
  202: path to pkg-config.
  203: 
  204: _PKG_TEXT
  205: 
  206: To get pkg-config, see <http://pkg-config.freedesktop.org/>.])[]dnl
  207:         ])
  208: else
  209: 	$1[]_CFLAGS=$pkg_cv_[]$1[]_CFLAGS
  210: 	$1[]_LIBS=$pkg_cv_[]$1[]_LIBS
  211:         AC_MSG_RESULT([yes])
  212: 	$3
  213: fi[]dnl
  214: ])dnl PKG_CHECK_MODULES
  215: 
  216: 
  217: dnl PKG_CHECK_MODULES_STATIC(VARIABLE-PREFIX, MODULES, [ACTION-IF-FOUND],
  218: dnl   [ACTION-IF-NOT-FOUND])
  219: dnl ---------------------------------------------------------------------
  220: dnl Since: 0.29
  221: dnl
  222: dnl Checks for existence of MODULES and gathers its build flags with
  223: dnl static libraries enabled. Sets VARIABLE-PREFIX_CFLAGS from --cflags
  224: dnl and VARIABLE-PREFIX_LIBS from --libs.
  225: dnl
  226: dnl Note that if there is a possibility the first call to
  227: dnl PKG_CHECK_MODULES_STATIC might not happen, you should be sure to
  228: dnl include an explicit call to PKG_PROG_PKG_CONFIG in your
  229: dnl configure.ac.
  230: AC_DEFUN([PKG_CHECK_MODULES_STATIC],
  231: [AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
  232: _save_PKG_CONFIG=$PKG_CONFIG
  233: PKG_CONFIG="$PKG_CONFIG --static"
  234: PKG_CHECK_MODULES($@)
  235: PKG_CONFIG=$_save_PKG_CONFIG[]dnl
  236: ])dnl PKG_CHECK_MODULES_STATIC
  237: 
  238: 
  239: dnl PKG_INSTALLDIR([DIRECTORY])
  240: dnl -------------------------
  241: dnl Since: 0.27
  242: dnl
  243: dnl Substitutes the variable pkgconfigdir as the location where a module
  244: dnl should install pkg-config .pc files. By default the directory is
  245: dnl $libdir/pkgconfig, but the default can be changed by passing
  246: dnl DIRECTORY. The user can override through the --with-pkgconfigdir
  247: dnl parameter.
  248: AC_DEFUN([PKG_INSTALLDIR],
  249: [m4_pushdef([pkg_default], [m4_default([$1], ['${libdir}/pkgconfig'])])
  250: m4_pushdef([pkg_description],
  251:     [pkg-config installation directory @<:@]pkg_default[@:>@])
  252: AC_ARG_WITH([pkgconfigdir],
  253:     [AS_HELP_STRING([--with-pkgconfigdir], pkg_description)],,
  254:     [with_pkgconfigdir=]pkg_default)
  255: AC_SUBST([pkgconfigdir], [$with_pkgconfigdir])
  256: m4_popdef([pkg_default])
  257: m4_popdef([pkg_description])
  258: ])dnl PKG_INSTALLDIR
  259: 
  260: 
  261: dnl PKG_NOARCH_INSTALLDIR([DIRECTORY])
  262: dnl --------------------------------
  263: dnl Since: 0.27
  264: dnl
  265: dnl Substitutes the variable noarch_pkgconfigdir as the location where a
  266: dnl module should install arch-independent pkg-config .pc files. By
  267: dnl default the directory is $datadir/pkgconfig, but the default can be
  268: dnl changed by passing DIRECTORY. The user can override through the
  269: dnl --with-noarch-pkgconfigdir parameter.
  270: AC_DEFUN([PKG_NOARCH_INSTALLDIR],
  271: [m4_pushdef([pkg_default], [m4_default([$1], ['${datadir}/pkgconfig'])])
  272: m4_pushdef([pkg_description],
  273:     [pkg-config arch-independent installation directory @<:@]pkg_default[@:>@])
  274: AC_ARG_WITH([noarch-pkgconfigdir],
  275:     [AS_HELP_STRING([--with-noarch-pkgconfigdir], pkg_description)],,
  276:     [with_noarch_pkgconfigdir=]pkg_default)
  277: AC_SUBST([noarch_pkgconfigdir], [$with_noarch_pkgconfigdir])
  278: m4_popdef([pkg_default])
  279: m4_popdef([pkg_description])
  280: ])dnl PKG_NOARCH_INSTALLDIR
  281: 
  282: 
  283: dnl PKG_CHECK_VAR(VARIABLE, MODULE, CONFIG-VARIABLE,
  284: dnl [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
  285: dnl -------------------------------------------
  286: dnl Since: 0.28
  287: dnl
  288: dnl Retrieves the value of the pkg-config variable for the given module.
  289: AC_DEFUN([PKG_CHECK_VAR],
  290: [AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
  291: AC_ARG_VAR([$1], [value of $3 for $2, overriding pkg-config])dnl
  292: 
  293: _PKG_CONFIG([$1], [variable="][$3]["], [$2])
  294: AS_VAR_COPY([$1], [pkg_cv_][$1])
  295: 
  296: AS_VAR_IF([$1], [""], [$5], [$4])dnl
  297: ])dnl PKG_CHECK_VAR
  298: 
  299: # Copyright (C) 2002-2014 Free Software Foundation, Inc.
  300: #
  301: # This file is free software; the Free Software Foundation
  302: # gives unlimited permission to copy and/or distribute it,
  303: # with or without modifications, as long as this notice is preserved.
  304: 
  305: # AM_AUTOMAKE_VERSION(VERSION)
  306: # ----------------------------
  307: # Automake X.Y traces this macro to ensure aclocal.m4 has been
  308: # generated from the m4 files accompanying Automake X.Y.
  309: # (This private macro should not be called outside this file.)
  310: AC_DEFUN([AM_AUTOMAKE_VERSION],
  311: [am__api_version='1.15'
  312: dnl Some users find AM_AUTOMAKE_VERSION and mistake it for a way to
  313: dnl require some minimum version.  Point them to the right macro.
  314: m4_if([$1], [1.15], [],
  315:       [AC_FATAL([Do not call $0, use AM_INIT_AUTOMAKE([$1]).])])dnl
  316: ])
  317: 
  318: # _AM_AUTOCONF_VERSION(VERSION)
  319: # -----------------------------
  320: # aclocal traces this macro to find the Autoconf version.
  321: # This is a private macro too.  Using m4_define simplifies
  322: # the logic in aclocal, which can simply ignore this definition.
  323: m4_define([_AM_AUTOCONF_VERSION], [])
  324: 
  325: # AM_SET_CURRENT_AUTOMAKE_VERSION
  326: # -------------------------------
  327: # Call AM_AUTOMAKE_VERSION and AM_AUTOMAKE_VERSION so they can be traced.
  328: # This function is AC_REQUIREd by AM_INIT_AUTOMAKE.
  329: AC_DEFUN([AM_SET_CURRENT_AUTOMAKE_VERSION],
  330: [AM_AUTOMAKE_VERSION([1.15])dnl
  331: m4_ifndef([AC_AUTOCONF_VERSION],
  332:   [m4_copy([m4_PACKAGE_VERSION], [AC_AUTOCONF_VERSION])])dnl
  333: _AM_AUTOCONF_VERSION(m4_defn([AC_AUTOCONF_VERSION]))])
  334: 
  335: # Copyright (C) 2011-2014 Free Software Foundation, Inc.
  336: #
  337: # This file is free software; the Free Software Foundation
  338: # gives unlimited permission to copy and/or distribute it,
  339: # with or without modifications, as long as this notice is preserved.
  340: 
  341: # AM_PROG_AR([ACT-IF-FAIL])
  342: # -------------------------
  343: # Try to determine the archiver interface, and trigger the ar-lib wrapper
  344: # if it is needed.  If the detection of archiver interface fails, run
  345: # ACT-IF-FAIL (default is to abort configure with a proper error message).
  346: AC_DEFUN([AM_PROG_AR],
  347: [AC_BEFORE([$0], [LT_INIT])dnl
  348: AC_BEFORE([$0], [AC_PROG_LIBTOOL])dnl
  349: AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
  350: AC_REQUIRE_AUX_FILE([ar-lib])dnl
  351: AC_CHECK_TOOLS([AR], [ar lib "link -lib"], [false])
  352: : ${AR=ar}
  353: 
  354: AC_CACHE_CHECK([the archiver ($AR) interface], [am_cv_ar_interface],
  355:   [AC_LANG_PUSH([C])
  356:    am_cv_ar_interface=ar
  357:    AC_COMPILE_IFELSE([AC_LANG_SOURCE([[int some_variable = 0;]])],
  358:      [am_ar_try='$AR cru libconftest.a conftest.$ac_objext >&AS_MESSAGE_LOG_FD'
  359:       AC_TRY_EVAL([am_ar_try])
  360:       if test "$ac_status" -eq 0; then
  361:         am_cv_ar_interface=ar
  362:       else
  363:         am_ar_try='$AR -NOLOGO -OUT:conftest.lib conftest.$ac_objext >&AS_MESSAGE_LOG_FD'
  364:         AC_TRY_EVAL([am_ar_try])
  365:         if test "$ac_status" -eq 0; then
  366:           am_cv_ar_interface=lib
  367:         else
  368:           am_cv_ar_interface=unknown
  369:         fi
  370:       fi
  371:       rm -f conftest.lib libconftest.a
  372:      ])
  373:    AC_LANG_POP([C])])
  374: 
  375: case $am_cv_ar_interface in
  376: ar)
  377:   ;;
  378: lib)
  379:   # Microsoft lib, so override with the ar-lib wrapper script.
  380:   # FIXME: It is wrong to rewrite AR.
  381:   # But if we don't then we get into trouble of one sort or another.
  382:   # A longer-term fix would be to have automake use am__AR in this case,
  383:   # and then we could set am__AR="$am_aux_dir/ar-lib \$(AR)" or something
  384:   # similar.
  385:   AR="$am_aux_dir/ar-lib $AR"
  386:   ;;
  387: unknown)
  388:   m4_default([$1],
  389:              [AC_MSG_ERROR([could not determine $AR interface])])
  390:   ;;
  391: esac
  392: AC_SUBST([AR])dnl
  393: ])
  394: 
  395: # AM_AUX_DIR_EXPAND                                         -*- Autoconf -*-
  396: 
  397: # Copyright (C) 2001-2014 Free Software Foundation, Inc.
  398: #
  399: # This file is free software; the Free Software Foundation
  400: # gives unlimited permission to copy and/or distribute it,
  401: # with or without modifications, as long as this notice is preserved.
  402: 
  403: # For projects using AC_CONFIG_AUX_DIR([foo]), Autoconf sets
  404: # $ac_aux_dir to '$srcdir/foo'.  In other projects, it is set to
  405: # '$srcdir', '$srcdir/..', or '$srcdir/../..'.
  406: #
  407: # Of course, Automake must honor this variable whenever it calls a
  408: # tool from the auxiliary directory.  The problem is that $srcdir (and
  409: # therefore $ac_aux_dir as well) can be either absolute or relative,
  410: # depending on how configure is run.  This is pretty annoying, since
  411: # it makes $ac_aux_dir quite unusable in subdirectories: in the top
  412: # source directory, any form will work fine, but in subdirectories a
  413: # relative path needs to be adjusted first.
  414: #
  415: # $ac_aux_dir/missing
  416: #    fails when called from a subdirectory if $ac_aux_dir is relative
  417: # $top_srcdir/$ac_aux_dir/missing
  418: #    fails if $ac_aux_dir is absolute,
  419: #    fails when called from a subdirectory in a VPATH build with
  420: #          a relative $ac_aux_dir
  421: #
  422: # The reason of the latter failure is that $top_srcdir and $ac_aux_dir
  423: # are both prefixed by $srcdir.  In an in-source build this is usually
  424: # harmless because $srcdir is '.', but things will broke when you
  425: # start a VPATH build or use an absolute $srcdir.
  426: #
  427: # So we could use something similar to $top_srcdir/$ac_aux_dir/missing,
  428: # iff we strip the leading $srcdir from $ac_aux_dir.  That would be:
  429: #   am_aux_dir='\$(top_srcdir)/'`expr "$ac_aux_dir" : "$srcdir//*\(.*\)"`
  430: # and then we would define $MISSING as
  431: #   MISSING="\${SHELL} $am_aux_dir/missing"
  432: # This will work as long as MISSING is not called from configure, because
  433: # unfortunately $(top_srcdir) has no meaning in configure.
  434: # However there are other variables, like CC, which are often used in
  435: # configure, and could therefore not use this "fixed" $ac_aux_dir.
  436: #
  437: # Another solution, used here, is to always expand $ac_aux_dir to an
  438: # absolute PATH.  The drawback is that using absolute paths prevent a
  439: # configured tree to be moved without reconfiguration.
  440: 
  441: AC_DEFUN([AM_AUX_DIR_EXPAND],
  442: [AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT])dnl
  443: # Expand $ac_aux_dir to an absolute path.
  444: am_aux_dir=`cd "$ac_aux_dir" && pwd`
  445: ])
  446: 
  447: # AM_CONDITIONAL                                            -*- Autoconf -*-
  448: 
  449: # Copyright (C) 1997-2014 Free Software Foundation, Inc.
  450: #
  451: # This file is free software; the Free Software Foundation
  452: # gives unlimited permission to copy and/or distribute it,
  453: # with or without modifications, as long as this notice is preserved.
  454: 
  455: # AM_CONDITIONAL(NAME, SHELL-CONDITION)
  456: # -------------------------------------
  457: # Define a conditional.
  458: AC_DEFUN([AM_CONDITIONAL],
  459: [AC_PREREQ([2.52])dnl
  460:  m4_if([$1], [TRUE],  [AC_FATAL([$0: invalid condition: $1])],
  461:        [$1], [FALSE], [AC_FATAL([$0: invalid condition: $1])])dnl
  462: AC_SUBST([$1_TRUE])dnl
  463: AC_SUBST([$1_FALSE])dnl
  464: _AM_SUBST_NOTMAKE([$1_TRUE])dnl
  465: _AM_SUBST_NOTMAKE([$1_FALSE])dnl
  466: m4_define([_AM_COND_VALUE_$1], [$2])dnl
  467: if $2; then
  468:   $1_TRUE=
  469:   $1_FALSE='#'
  470: else
  471:   $1_TRUE='#'
  472:   $1_FALSE=
  473: fi
  474: AC_CONFIG_COMMANDS_PRE(
  475: [if test -z "${$1_TRUE}" && test -z "${$1_FALSE}"; then
  476:   AC_MSG_ERROR([[conditional "$1" was never defined.
  477: Usually this means the macro was only invoked conditionally.]])
  478: fi])])
  479: 
  480: # Copyright (C) 1999-2014 Free Software Foundation, Inc.
  481: #
  482: # This file is free software; the Free Software Foundation
  483: # gives unlimited permission to copy and/or distribute it,
  484: # with or without modifications, as long as this notice is preserved.
  485: 
  486: 
  487: # There are a few dirty hacks below to avoid letting 'AC_PROG_CC' be
  488: # written in clear, in which case automake, when reading aclocal.m4,
  489: # will think it sees a *use*, and therefore will trigger all it's
  490: # C support machinery.  Also note that it means that autoscan, seeing
  491: # CC etc. in the Makefile, will ask for an AC_PROG_CC use...
  492: 
  493: 
  494: # _AM_DEPENDENCIES(NAME)
  495: # ----------------------
  496: # See how the compiler implements dependency checking.
  497: # NAME is "CC", "CXX", "OBJC", "OBJCXX", "UPC", or "GJC".
  498: # We try a few techniques and use that to set a single cache variable.
  499: #
  500: # We don't AC_REQUIRE the corresponding AC_PROG_CC since the latter was
  501: # modified to invoke _AM_DEPENDENCIES(CC); we would have a circular
  502: # dependency, and given that the user is not expected to run this macro,
  503: # just rely on AC_PROG_CC.
  504: AC_DEFUN([_AM_DEPENDENCIES],
  505: [AC_REQUIRE([AM_SET_DEPDIR])dnl
  506: AC_REQUIRE([AM_OUTPUT_DEPENDENCY_COMMANDS])dnl
  507: AC_REQUIRE([AM_MAKE_INCLUDE])dnl
  508: AC_REQUIRE([AM_DEP_TRACK])dnl
  509: 
  510: m4_if([$1], [CC],   [depcc="$CC"   am_compiler_list=],
  511:       [$1], [CXX],  [depcc="$CXX"  am_compiler_list=],
  512:       [$1], [OBJC], [depcc="$OBJC" am_compiler_list='gcc3 gcc'],
  513:       [$1], [OBJCXX], [depcc="$OBJCXX" am_compiler_list='gcc3 gcc'],
  514:       [$1], [UPC],  [depcc="$UPC"  am_compiler_list=],
  515:       [$1], [GCJ],  [depcc="$GCJ"  am_compiler_list='gcc3 gcc'],
  516:                     [depcc="$$1"   am_compiler_list=])
  517: 
  518: AC_CACHE_CHECK([dependency style of $depcc],
  519:                [am_cv_$1_dependencies_compiler_type],
  520: [if test -z "$AMDEP_TRUE" && test -f "$am_depcomp"; then
  521:   # We make a subdir and do the tests there.  Otherwise we can end up
  522:   # making bogus files that we don't know about and never remove.  For
  523:   # instance it was reported that on HP-UX the gcc test will end up
  524:   # making a dummy file named 'D' -- because '-MD' means "put the output
  525:   # in D".
  526:   rm -rf conftest.dir
  527:   mkdir conftest.dir
  528:   # Copy depcomp to subdir because otherwise we won't find it if we're
  529:   # using a relative directory.
  530:   cp "$am_depcomp" conftest.dir
  531:   cd conftest.dir
  532:   # We will build objects and dependencies in a subdirectory because
  533:   # it helps to detect inapplicable dependency modes.  For instance
  534:   # both Tru64's cc and ICC support -MD to output dependencies as a
  535:   # side effect of compilation, but ICC will put the dependencies in
  536:   # the current directory while Tru64 will put them in the object
  537:   # directory.
  538:   mkdir sub
  539: 
  540:   am_cv_$1_dependencies_compiler_type=none
  541:   if test "$am_compiler_list" = ""; then
  542:      am_compiler_list=`sed -n ['s/^#*\([a-zA-Z0-9]*\))$/\1/p'] < ./depcomp`
  543:   fi
  544:   am__universal=false
  545:   m4_case([$1], [CC],
  546:     [case " $depcc " in #(
  547:      *\ -arch\ *\ -arch\ *) am__universal=true ;;
  548:      esac],
  549:     [CXX],
  550:     [case " $depcc " in #(
  551:      *\ -arch\ *\ -arch\ *) am__universal=true ;;
  552:      esac])
  553: 
  554:   for depmode in $am_compiler_list; do
  555:     # Setup a source with many dependencies, because some compilers
  556:     # like to wrap large dependency lists on column 80 (with \), and
  557:     # we should not choose a depcomp mode which is confused by this.
  558:     #
  559:     # We need to recreate these files for each test, as the compiler may
  560:     # overwrite some of them when testing with obscure command lines.
  561:     # This happens at least with the AIX C compiler.
  562:     : > sub/conftest.c
  563:     for i in 1 2 3 4 5 6; do
  564:       echo '#include "conftst'$i'.h"' >> sub/conftest.c
  565:       # Using ": > sub/conftst$i.h" creates only sub/conftst1.h with
  566:       # Solaris 10 /bin/sh.
  567:       echo '/* dummy */' > sub/conftst$i.h
  568:     done
  569:     echo "${am__include} ${am__quote}sub/conftest.Po${am__quote}" > confmf
  570: 
  571:     # We check with '-c' and '-o' for the sake of the "dashmstdout"
  572:     # mode.  It turns out that the SunPro C++ compiler does not properly
  573:     # handle '-M -o', and we need to detect this.  Also, some Intel
  574:     # versions had trouble with output in subdirs.
  575:     am__obj=sub/conftest.${OBJEXT-o}
  576:     am__minus_obj="-o $am__obj"
  577:     case $depmode in
  578:     gcc)
  579:       # This depmode causes a compiler race in universal mode.
  580:       test "$am__universal" = false || continue
  581:       ;;
  582:     nosideeffect)
  583:       # After this tag, mechanisms are not by side-effect, so they'll
  584:       # only be used when explicitly requested.
  585:       if test "x$enable_dependency_tracking" = xyes; then
  586: 	continue
  587:       else
  588: 	break
  589:       fi
  590:       ;;
  591:     msvc7 | msvc7msys | msvisualcpp | msvcmsys)
  592:       # This compiler won't grok '-c -o', but also, the minuso test has
  593:       # not run yet.  These depmodes are late enough in the game, and
  594:       # so weak that their functioning should not be impacted.
  595:       am__obj=conftest.${OBJEXT-o}
  596:       am__minus_obj=
  597:       ;;
  598:     none) break ;;
  599:     esac
  600:     if depmode=$depmode \
  601:        source=sub/conftest.c object=$am__obj \
  602:        depfile=sub/conftest.Po tmpdepfile=sub/conftest.TPo \
  603:        $SHELL ./depcomp $depcc -c $am__minus_obj sub/conftest.c \
  604:          >/dev/null 2>conftest.err &&
  605:        grep sub/conftst1.h sub/conftest.Po > /dev/null 2>&1 &&
  606:        grep sub/conftst6.h sub/conftest.Po > /dev/null 2>&1 &&
  607:        grep $am__obj sub/conftest.Po > /dev/null 2>&1 &&
  608:        ${MAKE-make} -s -f confmf > /dev/null 2>&1; then
  609:       # icc doesn't choke on unknown options, it will just issue warnings
  610:       # or remarks (even with -Werror).  So we grep stderr for any message
  611:       # that says an option was ignored or not supported.
  612:       # When given -MP, icc 7.0 and 7.1 complain thusly:
  613:       #   icc: Command line warning: ignoring option '-M'; no argument required
  614:       # The diagnosis changed in icc 8.0:
  615:       #   icc: Command line remark: option '-MP' not supported
  616:       if (grep 'ignoring option' conftest.err ||
  617:           grep 'not supported' conftest.err) >/dev/null 2>&1; then :; else
  618:         am_cv_$1_dependencies_compiler_type=$depmode
  619:         break
  620:       fi
  621:     fi
  622:   done
  623: 
  624:   cd ..
  625:   rm -rf conftest.dir
  626: else
  627:   am_cv_$1_dependencies_compiler_type=none
  628: fi
  629: ])
  630: AC_SUBST([$1DEPMODE], [depmode=$am_cv_$1_dependencies_compiler_type])
  631: AM_CONDITIONAL([am__fastdep$1], [
  632:   test "x$enable_dependency_tracking" != xno \
  633:   && test "$am_cv_$1_dependencies_compiler_type" = gcc3])
  634: ])
  635: 
  636: 
  637: # AM_SET_DEPDIR
  638: # -------------
  639: # Choose a directory name for dependency files.
  640: # This macro is AC_REQUIREd in _AM_DEPENDENCIES.
  641: AC_DEFUN([AM_SET_DEPDIR],
  642: [AC_REQUIRE([AM_SET_LEADING_DOT])dnl
  643: AC_SUBST([DEPDIR], ["${am__leading_dot}deps"])dnl
  644: ])
  645: 
  646: 
  647: # AM_DEP_TRACK
  648: # ------------
  649: AC_DEFUN([AM_DEP_TRACK],
  650: [AC_ARG_ENABLE([dependency-tracking], [dnl
  651: AS_HELP_STRING(
  652:   [--enable-dependency-tracking],
  653:   [do not reject slow dependency extractors])
  654: AS_HELP_STRING(
  655:   [--disable-dependency-tracking],
  656:   [speeds up one-time build])])
  657: if test "x$enable_dependency_tracking" != xno; then
  658:   am_depcomp="$ac_aux_dir/depcomp"
  659:   AMDEPBACKSLASH='\'
  660:   am__nodep='_no'
  661: fi
  662: AM_CONDITIONAL([AMDEP], [test "x$enable_dependency_tracking" != xno])
  663: AC_SUBST([AMDEPBACKSLASH])dnl
  664: _AM_SUBST_NOTMAKE([AMDEPBACKSLASH])dnl
  665: AC_SUBST([am__nodep])dnl
  666: _AM_SUBST_NOTMAKE([am__nodep])dnl
  667: ])
  668: 
  669: # Generate code to set up dependency tracking.              -*- Autoconf -*-
  670: 
  671: # Copyright (C) 1999-2014 Free Software Foundation, Inc.
  672: #
  673: # This file is free software; the Free Software Foundation
  674: # gives unlimited permission to copy and/or distribute it,
  675: # with or without modifications, as long as this notice is preserved.
  676: 
  677: 
  678: # _AM_OUTPUT_DEPENDENCY_COMMANDS
  679: # ------------------------------
  680: AC_DEFUN([_AM_OUTPUT_DEPENDENCY_COMMANDS],
  681: [{
  682:   # Older Autoconf quotes --file arguments for eval, but not when files
  683:   # are listed without --file.  Let's play safe and only enable the eval
  684:   # if we detect the quoting.
  685:   case $CONFIG_FILES in
  686:   *\'*) eval set x "$CONFIG_FILES" ;;
  687:   *)   set x $CONFIG_FILES ;;
  688:   esac
  689:   shift
  690:   for mf
  691:   do
  692:     # Strip MF so we end up with the name of the file.
  693:     mf=`echo "$mf" | sed -e 's/:.*$//'`
  694:     # Check whether this is an Automake generated Makefile or not.
  695:     # We used to match only the files named 'Makefile.in', but
  696:     # some people rename them; so instead we look at the file content.
  697:     # Grep'ing the first line is not enough: some people post-process
  698:     # each Makefile.in and add a new line on top of each file to say so.
  699:     # Grep'ing the whole file is not good either: AIX grep has a line
  700:     # limit of 2048, but all sed's we know have understand at least 4000.
  701:     if sed -n 's,^#.*generated by automake.*,X,p' "$mf" | grep X >/dev/null 2>&1; then
  702:       dirpart=`AS_DIRNAME("$mf")`
  703:     else
  704:       continue
  705:     fi
  706:     # Extract the definition of DEPDIR, am__include, and am__quote
  707:     # from the Makefile without running 'make'.
  708:     DEPDIR=`sed -n 's/^DEPDIR = //p' < "$mf"`
  709:     test -z "$DEPDIR" && continue
  710:     am__include=`sed -n 's/^am__include = //p' < "$mf"`
  711:     test -z "$am__include" && continue
  712:     am__quote=`sed -n 's/^am__quote = //p' < "$mf"`
  713:     # Find all dependency output files, they are included files with
  714:     # $(DEPDIR) in their names.  We invoke sed twice because it is the
  715:     # simplest approach to changing $(DEPDIR) to its actual value in the
  716:     # expansion.
  717:     for file in `sed -n "
  718:       s/^$am__include $am__quote\(.*(DEPDIR).*\)$am__quote"'$/\1/p' <"$mf" | \
  719: 	 sed -e 's/\$(DEPDIR)/'"$DEPDIR"'/g'`; do
  720:       # Make sure the directory exists.
  721:       test -f "$dirpart/$file" && continue
  722:       fdir=`AS_DIRNAME(["$file"])`
  723:       AS_MKDIR_P([$dirpart/$fdir])
  724:       # echo "creating $dirpart/$file"
  725:       echo '# dummy' > "$dirpart/$file"
  726:     done
  727:   done
  728: }
  729: ])# _AM_OUTPUT_DEPENDENCY_COMMANDS
  730: 
  731: 
  732: # AM_OUTPUT_DEPENDENCY_COMMANDS
  733: # -----------------------------
  734: # This macro should only be invoked once -- use via AC_REQUIRE.
  735: #
  736: # This code is only required when automatic dependency tracking
  737: # is enabled.  FIXME.  This creates each '.P' file that we will
  738: # need in order to bootstrap the dependency handling code.
  739: AC_DEFUN([AM_OUTPUT_DEPENDENCY_COMMANDS],
  740: [AC_CONFIG_COMMANDS([depfiles],
  741:      [test x"$AMDEP_TRUE" != x"" || _AM_OUTPUT_DEPENDENCY_COMMANDS],
  742:      [AMDEP_TRUE="$AMDEP_TRUE" ac_aux_dir="$ac_aux_dir"])
  743: ])
  744: 
  745: # Do all the work for Automake.                             -*- Autoconf -*-
  746: 
  747: # Copyright (C) 1996-2014 Free Software Foundation, Inc.
  748: #
  749: # This file is free software; the Free Software Foundation
  750: # gives unlimited permission to copy and/or distribute it,
  751: # with or without modifications, as long as this notice is preserved.
  752: 
  753: # This macro actually does too much.  Some checks are only needed if
  754: # your package does certain things.  But this isn't really a big deal.
  755: 
  756: dnl Redefine AC_PROG_CC to automatically invoke _AM_PROG_CC_C_O.
  757: m4_define([AC_PROG_CC],
  758: m4_defn([AC_PROG_CC])
  759: [_AM_PROG_CC_C_O
  760: ])
  761: 
  762: # AM_INIT_AUTOMAKE(PACKAGE, VERSION, [NO-DEFINE])
  763: # AM_INIT_AUTOMAKE([OPTIONS])
  764: # -----------------------------------------------
  765: # The call with PACKAGE and VERSION arguments is the old style
  766: # call (pre autoconf-2.50), which is being phased out.  PACKAGE
  767: # and VERSION should now be passed to AC_INIT and removed from
  768: # the call to AM_INIT_AUTOMAKE.
  769: # We support both call styles for the transition.  After
  770: # the next Automake release, Autoconf can make the AC_INIT
  771: # arguments mandatory, and then we can depend on a new Autoconf
  772: # release and drop the old call support.
  773: AC_DEFUN([AM_INIT_AUTOMAKE],
  774: [AC_PREREQ([2.65])dnl
  775: dnl Autoconf wants to disallow AM_ names.  We explicitly allow
  776: dnl the ones we care about.
  777: m4_pattern_allow([^AM_[A-Z]+FLAGS$])dnl
  778: AC_REQUIRE([AM_SET_CURRENT_AUTOMAKE_VERSION])dnl
  779: AC_REQUIRE([AC_PROG_INSTALL])dnl
  780: if test "`cd $srcdir && pwd`" != "`pwd`"; then
  781:   # Use -I$(srcdir) only when $(srcdir) != ., so that make's output
  782:   # is not polluted with repeated "-I."
  783:   AC_SUBST([am__isrc], [' -I$(srcdir)'])_AM_SUBST_NOTMAKE([am__isrc])dnl
  784:   # test to see if srcdir already configured
  785:   if test -f $srcdir/config.status; then
  786:     AC_MSG_ERROR([source directory already configured; run "make distclean" there first])
  787:   fi
  788: fi
  789: 
  790: # test whether we have cygpath
  791: if test -z "$CYGPATH_W"; then
  792:   if (cygpath --version) >/dev/null 2>/dev/null; then
  793:     CYGPATH_W='cygpath -w'
  794:   else
  795:     CYGPATH_W=echo
  796:   fi
  797: fi
  798: AC_SUBST([CYGPATH_W])
  799: 
  800: # Define the identity of the package.
  801: dnl Distinguish between old-style and new-style calls.
  802: m4_ifval([$2],
  803: [AC_DIAGNOSE([obsolete],
  804:              [$0: two- and three-arguments forms are deprecated.])
  805: m4_ifval([$3], [_AM_SET_OPTION([no-define])])dnl
  806:  AC_SUBST([PACKAGE], [$1])dnl
  807:  AC_SUBST([VERSION], [$2])],
  808: [_AM_SET_OPTIONS([$1])dnl
  809: dnl Diagnose old-style AC_INIT with new-style AM_AUTOMAKE_INIT.
  810: m4_if(
  811:   m4_ifdef([AC_PACKAGE_NAME], [ok]):m4_ifdef([AC_PACKAGE_VERSION], [ok]),
  812:   [ok:ok],,
  813:   [m4_fatal([AC_INIT should be called with package and version arguments])])dnl
  814:  AC_SUBST([PACKAGE], ['AC_PACKAGE_TARNAME'])dnl
  815:  AC_SUBST([VERSION], ['AC_PACKAGE_VERSION'])])dnl
  816: 
  817: _AM_IF_OPTION([no-define],,
  818: [AC_DEFINE_UNQUOTED([PACKAGE], ["$PACKAGE"], [Name of package])
  819:  AC_DEFINE_UNQUOTED([VERSION], ["$VERSION"], [Version number of package])])dnl
  820: 
  821: # Some tools Automake needs.
  822: AC_REQUIRE([AM_SANITY_CHECK])dnl
  823: AC_REQUIRE([AC_ARG_PROGRAM])dnl
  824: AM_MISSING_PROG([ACLOCAL], [aclocal-${am__api_version}])
  825: AM_MISSING_PROG([AUTOCONF], [autoconf])
  826: AM_MISSING_PROG([AUTOMAKE], [automake-${am__api_version}])
  827: AM_MISSING_PROG([AUTOHEADER], [autoheader])
  828: AM_MISSING_PROG([MAKEINFO], [makeinfo])
  829: AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
  830: AC_REQUIRE([AM_PROG_INSTALL_STRIP])dnl
  831: AC_REQUIRE([AC_PROG_MKDIR_P])dnl
  832: # For better backward compatibility.  To be removed once Automake 1.9.x
  833: # dies out for good.  For more background, see:
  834: # <http://lists.gnu.org/archive/html/automake/2012-07/msg00001.html>
  835: # <http://lists.gnu.org/archive/html/automake/2012-07/msg00014.html>
  836: AC_SUBST([mkdir_p], ['$(MKDIR_P)'])
  837: # We need awk for the "check" target (and possibly the TAP driver).  The
  838: # system "awk" is bad on some platforms.
  839: AC_REQUIRE([AC_PROG_AWK])dnl
  840: AC_REQUIRE([AC_PROG_MAKE_SET])dnl
  841: AC_REQUIRE([AM_SET_LEADING_DOT])dnl
  842: _AM_IF_OPTION([tar-ustar], [_AM_PROG_TAR([ustar])],
  843: 	      [_AM_IF_OPTION([tar-pax], [_AM_PROG_TAR([pax])],
  844: 			     [_AM_PROG_TAR([v7])])])
  845: _AM_IF_OPTION([no-dependencies],,
  846: [AC_PROVIDE_IFELSE([AC_PROG_CC],
  847: 		  [_AM_DEPENDENCIES([CC])],
  848: 		  [m4_define([AC_PROG_CC],
  849: 			     m4_defn([AC_PROG_CC])[_AM_DEPENDENCIES([CC])])])dnl
  850: AC_PROVIDE_IFELSE([AC_PROG_CXX],
  851: 		  [_AM_DEPENDENCIES([CXX])],
  852: 		  [m4_define([AC_PROG_CXX],
  853: 			     m4_defn([AC_PROG_CXX])[_AM_DEPENDENCIES([CXX])])])dnl
  854: AC_PROVIDE_IFELSE([AC_PROG_OBJC],
  855: 		  [_AM_DEPENDENCIES([OBJC])],
  856: 		  [m4_define([AC_PROG_OBJC],
  857: 			     m4_defn([AC_PROG_OBJC])[_AM_DEPENDENCIES([OBJC])])])dnl
  858: AC_PROVIDE_IFELSE([AC_PROG_OBJCXX],
  859: 		  [_AM_DEPENDENCIES([OBJCXX])],
  860: 		  [m4_define([AC_PROG_OBJCXX],
  861: 			     m4_defn([AC_PROG_OBJCXX])[_AM_DEPENDENCIES([OBJCXX])])])dnl
  862: ])
  863: AC_REQUIRE([AM_SILENT_RULES])dnl
  864: dnl The testsuite driver may need to know about EXEEXT, so add the
  865: dnl 'am__EXEEXT' conditional if _AM_COMPILER_EXEEXT was seen.  This
  866: dnl macro is hooked onto _AC_COMPILER_EXEEXT early, see below.
  867: AC_CONFIG_COMMANDS_PRE(dnl
  868: [m4_provide_if([_AM_COMPILER_EXEEXT],
  869:   [AM_CONDITIONAL([am__EXEEXT], [test -n "$EXEEXT"])])])dnl
  870: 
  871: # POSIX will say in a future version that running "rm -f" with no argument
  872: # is OK; and we want to be able to make that assumption in our Makefile
  873: # recipes.  So use an aggressive probe to check that the usage we want is
  874: # actually supported "in the wild" to an acceptable degree.
  875: # See automake bug#10828.
  876: # To make any issue more visible, cause the running configure to be aborted
  877: # by default if the 'rm' program in use doesn't match our expectations; the
  878: # user can still override this though.
  879: if rm -f && rm -fr && rm -rf; then : OK; else
  880:   cat >&2 <<'END'
  881: Oops!
  882: 
  883: Your 'rm' program seems unable to run without file operands specified
  884: on the command line, even when the '-f' option is present.  This is contrary
  885: to the behaviour of most rm programs out there, and not conforming with
  886: the upcoming POSIX standard: <http://austingroupbugs.net/view.php?id=542>
  887: 
  888: Please tell bug-automake@gnu.org about your system, including the value
  889: of your $PATH and any error possibly output before this message.  This
  890: can help us improve future automake versions.
  891: 
  892: END
  893:   if test x"$ACCEPT_INFERIOR_RM_PROGRAM" = x"yes"; then
  894:     echo 'Configuration will proceed anyway, since you have set the' >&2
  895:     echo 'ACCEPT_INFERIOR_RM_PROGRAM variable to "yes"' >&2
  896:     echo >&2
  897:   else
  898:     cat >&2 <<'END'
  899: Aborting the configuration process, to ensure you take notice of the issue.
  900: 
  901: You can download and install GNU coreutils to get an 'rm' implementation
  902: that behaves properly: <http://www.gnu.org/software/coreutils/>.
  903: 
  904: If you want to complete the configuration process using your problematic
  905: 'rm' anyway, export the environment variable ACCEPT_INFERIOR_RM_PROGRAM
  906: to "yes", and re-run configure.
  907: 
  908: END
  909:     AC_MSG_ERROR([Your 'rm' program is bad, sorry.])
  910:   fi
  911: fi
  912: dnl The trailing newline in this macro's definition is deliberate, for
  913: dnl backward compatibility and to allow trailing 'dnl'-style comments
  914: dnl after the AM_INIT_AUTOMAKE invocation. See automake bug#16841.
  915: ])
  916: 
  917: dnl Hook into '_AC_COMPILER_EXEEXT' early to learn its expansion.  Do not
  918: dnl add the conditional right here, as _AC_COMPILER_EXEEXT may be further
  919: dnl mangled by Autoconf and run in a shell conditional statement.
  920: m4_define([_AC_COMPILER_EXEEXT],
  921: m4_defn([_AC_COMPILER_EXEEXT])[m4_provide([_AM_COMPILER_EXEEXT])])
  922: 
  923: # When config.status generates a header, we must update the stamp-h file.
  924: # This file resides in the same directory as the config header
  925: # that is generated.  The stamp files are numbered to have different names.
  926: 
  927: # Autoconf calls _AC_AM_CONFIG_HEADER_HOOK (when defined) in the
  928: # loop where config.status creates the headers, so we can generate
  929: # our stamp files there.
  930: AC_DEFUN([_AC_AM_CONFIG_HEADER_HOOK],
  931: [# Compute $1's index in $config_headers.
  932: _am_arg=$1
  933: _am_stamp_count=1
  934: for _am_header in $config_headers :; do
  935:   case $_am_header in
  936:     $_am_arg | $_am_arg:* )
  937:       break ;;
  938:     * )
  939:       _am_stamp_count=`expr $_am_stamp_count + 1` ;;
  940:   esac
  941: done
  942: echo "timestamp for $_am_arg" >`AS_DIRNAME(["$_am_arg"])`/stamp-h[]$_am_stamp_count])
  943: 
  944: # Copyright (C) 2001-2014 Free Software Foundation, Inc.
  945: #
  946: # This file is free software; the Free Software Foundation
  947: # gives unlimited permission to copy and/or distribute it,
  948: # with or without modifications, as long as this notice is preserved.
  949: 
  950: # AM_PROG_INSTALL_SH
  951: # ------------------
  952: # Define $install_sh.
  953: AC_DEFUN([AM_PROG_INSTALL_SH],
  954: [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
  955: if test x"${install_sh+set}" != xset; then
  956:   case $am_aux_dir in
  957:   *\ * | *\	*)
  958:     install_sh="\${SHELL} '$am_aux_dir/install-sh'" ;;
  959:   *)
  960:     install_sh="\${SHELL} $am_aux_dir/install-sh"
  961:   esac
  962: fi
  963: AC_SUBST([install_sh])])
  964: 
  965: # Copyright (C) 2003-2014 Free Software Foundation, Inc.
  966: #
  967: # This file is free software; the Free Software Foundation
  968: # gives unlimited permission to copy and/or distribute it,
  969: # with or without modifications, as long as this notice is preserved.
  970: 
  971: # Check whether the underlying file-system supports filenames
  972: # with a leading dot.  For instance MS-DOS doesn't.
  973: AC_DEFUN([AM_SET_LEADING_DOT],
  974: [rm -rf .tst 2>/dev/null
  975: mkdir .tst 2>/dev/null
  976: if test -d .tst; then
  977:   am__leading_dot=.
  978: else
  979:   am__leading_dot=_
  980: fi
  981: rmdir .tst 2>/dev/null
  982: AC_SUBST([am__leading_dot])])
  983: 
  984: # Check to see how 'make' treats includes.	            -*- Autoconf -*-
  985: 
  986: # Copyright (C) 2001-2014 Free Software Foundation, Inc.
  987: #
  988: # This file is free software; the Free Software Foundation
  989: # gives unlimited permission to copy and/or distribute it,
  990: # with or without modifications, as long as this notice is preserved.
  991: 
  992: # AM_MAKE_INCLUDE()
  993: # -----------------
  994: # Check to see how make treats includes.
  995: AC_DEFUN([AM_MAKE_INCLUDE],
  996: [am_make=${MAKE-make}
  997: cat > confinc << 'END'
  998: am__doit:
  999: 	@echo this is the am__doit target
 1000: .PHONY: am__doit
 1001: END
 1002: # If we don't find an include directive, just comment out the code.
 1003: AC_MSG_CHECKING([for style of include used by $am_make])
 1004: am__include="#"
 1005: am__quote=
 1006: _am_result=none
 1007: # First try GNU make style include.
 1008: echo "include confinc" > confmf
 1009: # Ignore all kinds of additional output from 'make'.
 1010: case `$am_make -s -f confmf 2> /dev/null` in #(
 1011: *the\ am__doit\ target*)
 1012:   am__include=include
 1013:   am__quote=
 1014:   _am_result=GNU
 1015:   ;;
 1016: esac
 1017: # Now try BSD make style include.
 1018: if test "$am__include" = "#"; then
 1019:    echo '.include "confinc"' > confmf
 1020:    case `$am_make -s -f confmf 2> /dev/null` in #(
 1021:    *the\ am__doit\ target*)
 1022:      am__include=.include
 1023:      am__quote="\""
 1024:      _am_result=BSD
 1025:      ;;
 1026:    esac
 1027: fi
 1028: AC_SUBST([am__include])
 1029: AC_SUBST([am__quote])
 1030: AC_MSG_RESULT([$_am_result])
 1031: rm -f confinc confmf
 1032: ])
 1033: 
 1034: # Fake the existence of programs that GNU maintainers use.  -*- Autoconf -*-
 1035: 
 1036: # Copyright (C) 1997-2014 Free Software Foundation, Inc.
 1037: #
 1038: # This file is free software; the Free Software Foundation
 1039: # gives unlimited permission to copy and/or distribute it,
 1040: # with or without modifications, as long as this notice is preserved.
 1041: 
 1042: # AM_MISSING_PROG(NAME, PROGRAM)
 1043: # ------------------------------
 1044: AC_DEFUN([AM_MISSING_PROG],
 1045: [AC_REQUIRE([AM_MISSING_HAS_RUN])
 1046: $1=${$1-"${am_missing_run}$2"}
 1047: AC_SUBST($1)])
 1048: 
 1049: # AM_MISSING_HAS_RUN
 1050: # ------------------
 1051: # Define MISSING if not defined so far and test if it is modern enough.
 1052: # If it is, set am_missing_run to use it, otherwise, to nothing.
 1053: AC_DEFUN([AM_MISSING_HAS_RUN],
 1054: [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
 1055: AC_REQUIRE_AUX_FILE([missing])dnl
 1056: if test x"${MISSING+set}" != xset; then
 1057:   case $am_aux_dir in
 1058:   *\ * | *\	*)
 1059:     MISSING="\${SHELL} \"$am_aux_dir/missing\"" ;;
 1060:   *)
 1061:     MISSING="\${SHELL} $am_aux_dir/missing" ;;
 1062:   esac
 1063: fi
 1064: # Use eval to expand $SHELL
 1065: if eval "$MISSING --is-lightweight"; then
 1066:   am_missing_run="$MISSING "
 1067: else
 1068:   am_missing_run=
 1069:   AC_MSG_WARN(['missing' script is too old or missing])
 1070: fi
 1071: ])
 1072: 
 1073: # Helper functions for option handling.                     -*- Autoconf -*-
 1074: 
 1075: # Copyright (C) 2001-2014 Free Software Foundation, Inc.
 1076: #
 1077: # This file is free software; the Free Software Foundation
 1078: # gives unlimited permission to copy and/or distribute it,
 1079: # with or without modifications, as long as this notice is preserved.
 1080: 
 1081: # _AM_MANGLE_OPTION(NAME)
 1082: # -----------------------
 1083: AC_DEFUN([_AM_MANGLE_OPTION],
 1084: [[_AM_OPTION_]m4_bpatsubst($1, [[^a-zA-Z0-9_]], [_])])
 1085: 
 1086: # _AM_SET_OPTION(NAME)
 1087: # --------------------
 1088: # Set option NAME.  Presently that only means defining a flag for this option.
 1089: AC_DEFUN([_AM_SET_OPTION],
 1090: [m4_define(_AM_MANGLE_OPTION([$1]), [1])])
 1091: 
 1092: # _AM_SET_OPTIONS(OPTIONS)
 1093: # ------------------------
 1094: # OPTIONS is a space-separated list of Automake options.
 1095: AC_DEFUN([_AM_SET_OPTIONS],
 1096: [m4_foreach_w([_AM_Option], [$1], [_AM_SET_OPTION(_AM_Option)])])
 1097: 
 1098: # _AM_IF_OPTION(OPTION, IF-SET, [IF-NOT-SET])
 1099: # -------------------------------------------
 1100: # Execute IF-SET if OPTION is set, IF-NOT-SET otherwise.
 1101: AC_DEFUN([_AM_IF_OPTION],
 1102: [m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])])
 1103: 
 1104: # Copyright (C) 1999-2014 Free Software Foundation, Inc.
 1105: #
 1106: # This file is free software; the Free Software Foundation
 1107: # gives unlimited permission to copy and/or distribute it,
 1108: # with or without modifications, as long as this notice is preserved.
 1109: 
 1110: # _AM_PROG_CC_C_O
 1111: # ---------------
 1112: # Like AC_PROG_CC_C_O, but changed for automake.  We rewrite AC_PROG_CC
 1113: # to automatically call this.
 1114: AC_DEFUN([_AM_PROG_CC_C_O],
 1115: [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
 1116: AC_REQUIRE_AUX_FILE([compile])dnl
 1117: AC_LANG_PUSH([C])dnl
 1118: AC_CACHE_CHECK(
 1119:   [whether $CC understands -c and -o together],
 1120:   [am_cv_prog_cc_c_o],
 1121:   [AC_LANG_CONFTEST([AC_LANG_PROGRAM([])])
 1122:   # Make sure it works both with $CC and with simple cc.
 1123:   # Following AC_PROG_CC_C_O, we do the test twice because some
 1124:   # compilers refuse to overwrite an existing .o file with -o,
 1125:   # though they will create one.
 1126:   am_cv_prog_cc_c_o=yes
 1127:   for am_i in 1 2; do
 1128:     if AM_RUN_LOG([$CC -c conftest.$ac_ext -o conftest2.$ac_objext]) \
 1129:          && test -f conftest2.$ac_objext; then
 1130:       : OK
 1131:     else
 1132:       am_cv_prog_cc_c_o=no
 1133:       break
 1134:     fi
 1135:   done
 1136:   rm -f core conftest*
 1137:   unset am_i])
 1138: if test "$am_cv_prog_cc_c_o" != yes; then
 1139:    # Losing compiler, so override with the script.
 1140:    # FIXME: It is wrong to rewrite CC.
 1141:    # But if we don't then we get into trouble of one sort or another.
 1142:    # A longer-term fix would be to have automake use am__CC in this case,
 1143:    # and then we could set am__CC="\$(top_srcdir)/compile \$(CC)"
 1144:    CC="$am_aux_dir/compile $CC"
 1145: fi
 1146: AC_LANG_POP([C])])
 1147: 
 1148: # For backward compatibility.
 1149: AC_DEFUN_ONCE([AM_PROG_CC_C_O], [AC_REQUIRE([AC_PROG_CC])])
 1150: 
 1151: # Copyright (C) 2001-2014 Free Software Foundation, Inc.
 1152: #
 1153: # This file is free software; the Free Software Foundation
 1154: # gives unlimited permission to copy and/or distribute it,
 1155: # with or without modifications, as long as this notice is preserved.
 1156: 
 1157: # AM_RUN_LOG(COMMAND)
 1158: # -------------------
 1159: # Run COMMAND, save the exit status in ac_status, and log it.
 1160: # (This has been adapted from Autoconf's _AC_RUN_LOG macro.)
 1161: AC_DEFUN([AM_RUN_LOG],
 1162: [{ echo "$as_me:$LINENO: $1" >&AS_MESSAGE_LOG_FD
 1163:    ($1) >&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD
 1164:    ac_status=$?
 1165:    echo "$as_me:$LINENO: \$? = $ac_status" >&AS_MESSAGE_LOG_FD
 1166:    (exit $ac_status); }])
 1167: 
 1168: # Check to make sure that the build environment is sane.    -*- Autoconf -*-
 1169: 
 1170: # Copyright (C) 1996-2014 Free Software Foundation, Inc.
 1171: #
 1172: # This file is free software; the Free Software Foundation
 1173: # gives unlimited permission to copy and/or distribute it,
 1174: # with or without modifications, as long as this notice is preserved.
 1175: 
 1176: # AM_SANITY_CHECK
 1177: # ---------------
 1178: AC_DEFUN([AM_SANITY_CHECK],
 1179: [AC_MSG_CHECKING([whether build environment is sane])
 1180: # Reject unsafe characters in $srcdir or the absolute working directory
 1181: # name.  Accept space and tab only in the latter.
 1182: am_lf='
 1183: '
 1184: case `pwd` in
 1185:   *[[\\\"\#\$\&\'\`$am_lf]]*)
 1186:     AC_MSG_ERROR([unsafe absolute working directory name]);;
 1187: esac
 1188: case $srcdir in
 1189:   *[[\\\"\#\$\&\'\`$am_lf\ \	]]*)
 1190:     AC_MSG_ERROR([unsafe srcdir value: '$srcdir']);;
 1191: esac
 1192: 
 1193: # Do 'set' in a subshell so we don't clobber the current shell's
 1194: # arguments.  Must try -L first in case configure is actually a
 1195: # symlink; some systems play weird games with the mod time of symlinks
 1196: # (eg FreeBSD returns the mod time of the symlink's containing
 1197: # directory).
 1198: if (
 1199:    am_has_slept=no
 1200:    for am_try in 1 2; do
 1201:      echo "timestamp, slept: $am_has_slept" > conftest.file
 1202:      set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null`
 1203:      if test "$[*]" = "X"; then
 1204: 	# -L didn't work.
 1205: 	set X `ls -t "$srcdir/configure" conftest.file`
 1206:      fi
 1207:      if test "$[*]" != "X $srcdir/configure conftest.file" \
 1208: 	&& test "$[*]" != "X conftest.file $srcdir/configure"; then
 1209: 
 1210: 	# If neither matched, then we have a broken ls.  This can happen
 1211: 	# if, for instance, CONFIG_SHELL is bash and it inherits a
 1212: 	# broken ls alias from the environment.  This has actually
 1213: 	# happened.  Such a system could not be considered "sane".
 1214: 	AC_MSG_ERROR([ls -t appears to fail.  Make sure there is not a broken
 1215:   alias in your environment])
 1216:      fi
 1217:      if test "$[2]" = conftest.file || test $am_try -eq 2; then
 1218:        break
 1219:      fi
 1220:      # Just in case.
 1221:      sleep 1
 1222:      am_has_slept=yes
 1223:    done
 1224:    test "$[2]" = conftest.file
 1225:    )
 1226: then
 1227:    # Ok.
 1228:    :
 1229: else
 1230:    AC_MSG_ERROR([newly created file is older than distributed files!
 1231: Check your system clock])
 1232: fi
 1233: AC_MSG_RESULT([yes])
 1234: # If we didn't sleep, we still need to ensure time stamps of config.status and
 1235: # generated files are strictly newer.
 1236: am_sleep_pid=
 1237: if grep 'slept: no' conftest.file >/dev/null 2>&1; then
 1238:   ( sleep 1 ) &
 1239:   am_sleep_pid=$!
 1240: fi
 1241: AC_CONFIG_COMMANDS_PRE(
 1242:   [AC_MSG_CHECKING([that generated files are newer than configure])
 1243:    if test -n "$am_sleep_pid"; then
 1244:      # Hide warnings about reused PIDs.
 1245:      wait $am_sleep_pid 2>/dev/null
 1246:    fi
 1247:    AC_MSG_RESULT([done])])
 1248: rm -f conftest.file
 1249: ])
 1250: 
 1251: # Copyright (C) 2009-2014 Free Software Foundation, Inc.
 1252: #
 1253: # This file is free software; the Free Software Foundation
 1254: # gives unlimited permission to copy and/or distribute it,
 1255: # with or without modifications, as long as this notice is preserved.
 1256: 
 1257: # AM_SILENT_RULES([DEFAULT])
 1258: # --------------------------
 1259: # Enable less verbose build rules; with the default set to DEFAULT
 1260: # ("yes" being less verbose, "no" or empty being verbose).
 1261: AC_DEFUN([AM_SILENT_RULES],
 1262: [AC_ARG_ENABLE([silent-rules], [dnl
 1263: AS_HELP_STRING(
 1264:   [--enable-silent-rules],
 1265:   [less verbose build output (undo: "make V=1")])
 1266: AS_HELP_STRING(
 1267:   [--disable-silent-rules],
 1268:   [verbose build output (undo: "make V=0")])dnl
 1269: ])
 1270: case $enable_silent_rules in @%:@ (((
 1271:   yes) AM_DEFAULT_VERBOSITY=0;;
 1272:    no) AM_DEFAULT_VERBOSITY=1;;
 1273:     *) AM_DEFAULT_VERBOSITY=m4_if([$1], [yes], [0], [1]);;
 1274: esac
 1275: dnl
 1276: dnl A few 'make' implementations (e.g., NonStop OS and NextStep)
 1277: dnl do not support nested variable expansions.
 1278: dnl See automake bug#9928 and bug#10237.
 1279: am_make=${MAKE-make}
 1280: AC_CACHE_CHECK([whether $am_make supports nested variables],
 1281:    [am_cv_make_support_nested_variables],
 1282:    [if AS_ECHO([['TRUE=$(BAR$(V))
 1283: BAR0=false
 1284: BAR1=true
 1285: V=1
 1286: am__doit:
 1287: 	@$(TRUE)
 1288: .PHONY: am__doit']]) | $am_make -f - >/dev/null 2>&1; then
 1289:   am_cv_make_support_nested_variables=yes
 1290: else
 1291:   am_cv_make_support_nested_variables=no
 1292: fi])
 1293: if test $am_cv_make_support_nested_variables = yes; then
 1294:   dnl Using '$V' instead of '$(V)' breaks IRIX make.
 1295:   AM_V='$(V)'
 1296:   AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
 1297: else
 1298:   AM_V=$AM_DEFAULT_VERBOSITY
 1299:   AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY
 1300: fi
 1301: AC_SUBST([AM_V])dnl
 1302: AM_SUBST_NOTMAKE([AM_V])dnl
 1303: AC_SUBST([AM_DEFAULT_V])dnl
 1304: AM_SUBST_NOTMAKE([AM_DEFAULT_V])dnl
 1305: AC_SUBST([AM_DEFAULT_VERBOSITY])dnl
 1306: AM_BACKSLASH='\'
 1307: AC_SUBST([AM_BACKSLASH])dnl
 1308: _AM_SUBST_NOTMAKE([AM_BACKSLASH])dnl
 1309: ])
 1310: 
 1311: # Copyright (C) 2001-2014 Free Software Foundation, Inc.
 1312: #
 1313: # This file is free software; the Free Software Foundation
 1314: # gives unlimited permission to copy and/or distribute it,
 1315: # with or without modifications, as long as this notice is preserved.
 1316: 
 1317: # AM_PROG_INSTALL_STRIP
 1318: # ---------------------
 1319: # One issue with vendor 'install' (even GNU) is that you can't
 1320: # specify the program used to strip binaries.  This is especially
 1321: # annoying in cross-compiling environments, where the build's strip
 1322: # is unlikely to handle the host's binaries.
 1323: # Fortunately install-sh will honor a STRIPPROG variable, so we
 1324: # always use install-sh in "make install-strip", and initialize
 1325: # STRIPPROG with the value of the STRIP variable (set by the user).
 1326: AC_DEFUN([AM_PROG_INSTALL_STRIP],
 1327: [AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
 1328: # Installed binaries are usually stripped using 'strip' when the user
 1329: # run "make install-strip".  However 'strip' might not be the right
 1330: # tool to use in cross-compilation environments, therefore Automake
 1331: # will honor the 'STRIP' environment variable to overrule this program.
 1332: dnl Don't test for $cross_compiling = yes, because it might be 'maybe'.
 1333: if test "$cross_compiling" != no; then
 1334:   AC_CHECK_TOOL([STRIP], [strip], :)
 1335: fi
 1336: INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
 1337: AC_SUBST([INSTALL_STRIP_PROGRAM])])
 1338: 
 1339: # Copyright (C) 2006-2014 Free Software Foundation, Inc.
 1340: #
 1341: # This file is free software; the Free Software Foundation
 1342: # gives unlimited permission to copy and/or distribute it,
 1343: # with or without modifications, as long as this notice is preserved.
 1344: 
 1345: # _AM_SUBST_NOTMAKE(VARIABLE)
 1346: # ---------------------------
 1347: # Prevent Automake from outputting VARIABLE = @VARIABLE@ in Makefile.in.
 1348: # This macro is traced by Automake.
 1349: AC_DEFUN([_AM_SUBST_NOTMAKE])
 1350: 
 1351: # AM_SUBST_NOTMAKE(VARIABLE)
 1352: # --------------------------
 1353: # Public sister of _AM_SUBST_NOTMAKE.
 1354: AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE($@)])
 1355: 
 1356: # Check how to create a tarball.                            -*- Autoconf -*-
 1357: 
 1358: # Copyright (C) 2004-2014 Free Software Foundation, Inc.
 1359: #
 1360: # This file is free software; the Free Software Foundation
 1361: # gives unlimited permission to copy and/or distribute it,
 1362: # with or without modifications, as long as this notice is preserved.
 1363: 
 1364: # _AM_PROG_TAR(FORMAT)
 1365: # --------------------
 1366: # Check how to create a tarball in format FORMAT.
 1367: # FORMAT should be one of 'v7', 'ustar', or 'pax'.
 1368: #
 1369: # Substitute a variable $(am__tar) that is a command
 1370: # writing to stdout a FORMAT-tarball containing the directory
 1371: # $tardir.
 1372: #     tardir=directory && $(am__tar) > result.tar
 1373: #
 1374: # Substitute a variable $(am__untar) that extract such
 1375: # a tarball read from stdin.
 1376: #     $(am__untar) < result.tar
 1377: #
 1378: AC_DEFUN([_AM_PROG_TAR],
 1379: [# Always define AMTAR for backward compatibility.  Yes, it's still used
 1380: # in the wild :-(  We should find a proper way to deprecate it ...
 1381: AC_SUBST([AMTAR], ['$${TAR-tar}'])
 1382: 
 1383: # We'll loop over all known methods to create a tar archive until one works.
 1384: _am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none'
 1385: 
 1386: m4_if([$1], [v7],
 1387:   [am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'],
 1388: 
 1389:   [m4_case([$1],
 1390:     [ustar],
 1391:      [# The POSIX 1988 'ustar' format is defined with fixed-size fields.
 1392:       # There is notably a 21 bits limit for the UID and the GID.  In fact,
 1393:       # the 'pax' utility can hang on bigger UID/GID (see automake bug#8343
 1394:       # and bug#13588).
 1395:       am_max_uid=2097151 # 2^21 - 1
 1396:       am_max_gid=$am_max_uid
 1397:       # The $UID and $GID variables are not portable, so we need to resort
 1398:       # to the POSIX-mandated id(1) utility.  Errors in the 'id' calls
 1399:       # below are definitely unexpected, so allow the users to see them
 1400:       # (that is, avoid stderr redirection).
 1401:       am_uid=`id -u || echo unknown`
 1402:       am_gid=`id -g || echo unknown`
 1403:       AC_MSG_CHECKING([whether UID '$am_uid' is supported by ustar format])
 1404:       if test $am_uid -le $am_max_uid; then
 1405:          AC_MSG_RESULT([yes])
 1406:       else
 1407:          AC_MSG_RESULT([no])
 1408:          _am_tools=none
 1409:       fi
 1410:       AC_MSG_CHECKING([whether GID '$am_gid' is supported by ustar format])
 1411:       if test $am_gid -le $am_max_gid; then
 1412:          AC_MSG_RESULT([yes])
 1413:       else
 1414:         AC_MSG_RESULT([no])
 1415:         _am_tools=none
 1416:       fi],
 1417: 
 1418:   [pax],
 1419:     [],
 1420: 
 1421:   [m4_fatal([Unknown tar format])])
 1422: 
 1423:   AC_MSG_CHECKING([how to create a $1 tar archive])
 1424: 
 1425:   # Go ahead even if we have the value already cached.  We do so because we
 1426:   # need to set the values for the 'am__tar' and 'am__untar' variables.
 1427:   _am_tools=${am_cv_prog_tar_$1-$_am_tools}
 1428: 
 1429:   for _am_tool in $_am_tools; do
 1430:     case $_am_tool in
 1431:     gnutar)
 1432:       for _am_tar in tar gnutar gtar; do
 1433:         AM_RUN_LOG([$_am_tar --version]) && break
 1434:       done
 1435:       am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"'
 1436:       am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"'
 1437:       am__untar="$_am_tar -xf -"
 1438:       ;;
 1439:     plaintar)
 1440:       # Must skip GNU tar: if it does not support --format= it doesn't create
 1441:       # ustar tarball either.
 1442:       (tar --version) >/dev/null 2>&1 && continue
 1443:       am__tar='tar chf - "$$tardir"'
 1444:       am__tar_='tar chf - "$tardir"'
 1445:       am__untar='tar xf -'
 1446:       ;;
 1447:     pax)
 1448:       am__tar='pax -L -x $1 -w "$$tardir"'
 1449:       am__tar_='pax -L -x $1 -w "$tardir"'
 1450:       am__untar='pax -r'
 1451:       ;;
 1452:     cpio)
 1453:       am__tar='find "$$tardir" -print | cpio -o -H $1 -L'
 1454:       am__tar_='find "$tardir" -print | cpio -o -H $1 -L'
 1455:       am__untar='cpio -i -H $1 -d'
 1456:       ;;
 1457:     none)
 1458:       am__tar=false
 1459:       am__tar_=false
 1460:       am__untar=false
 1461:       ;;
 1462:     esac
 1463: 
 1464:     # If the value was cached, stop now.  We just wanted to have am__tar
 1465:     # and am__untar set.
 1466:     test -n "${am_cv_prog_tar_$1}" && break
 1467: 
 1468:     # tar/untar a dummy directory, and stop if the command works.
 1469:     rm -rf conftest.dir
 1470:     mkdir conftest.dir
 1471:     echo GrepMe > conftest.dir/file
 1472:     AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar])
 1473:     rm -rf conftest.dir
 1474:     if test -s conftest.tar; then
 1475:       AM_RUN_LOG([$am__untar <conftest.tar])
 1476:       AM_RUN_LOG([cat conftest.dir/file])
 1477:       grep GrepMe conftest.dir/file >/dev/null 2>&1 && break
 1478:     fi
 1479:   done
 1480:   rm -rf conftest.dir
 1481: 
 1482:   AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool])
 1483:   AC_MSG_RESULT([$am_cv_prog_tar_$1])])
 1484: 
 1485: AC_SUBST([am__tar])
 1486: AC_SUBST([am__untar])
 1487: ]) # _AM_PROG_TAR
 1488: 
 1489: m4_include([m4/libtool.m4])
 1490: m4_include([m4/ltoptions.m4])
 1491: m4_include([m4/ltsugar.m4])
 1492: m4_include([m4/ltversion.m4])
 1493: m4_include([m4/lt~obsolete.m4])

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