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      1 # generated automatically by aclocal 1.11.6 -*- Autoconf -*-
      2 
      3 # Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
      4 # 2005, 2006, 2007, 2008, 2009, 2010, 2011 Free Software Foundation,
      5 # Inc.
      6 # This file is free software; the Free Software Foundation
      7 # gives unlimited permission to copy and/or distribute it,
      8 # with or without modifications, as long as this notice is preserved.
      9 
     10 # This program is distributed in the hope that it will be useful,
     11 # but WITHOUT ANY WARRANTY, to the extent permitted by law; without
     12 # even the implied warranty of MERCHANTABILITY or FITNESS FOR A
     13 # PARTICULAR PURPOSE.
     14 
     15 m4_ifndef([AC_AUTOCONF_VERSION],
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     22 
     23 # Copyright (C) 2002, 2003, 2005, 2006, 2007, 2008, 2011 Free Software
     24 # Foundation, Inc.
     25 #
     26 # This file is free software; the Free Software Foundation
     27 # gives unlimited permission to copy and/or distribute it,
     28 # with or without modifications, as long as this notice is preserved.
     29 
     30 # serial 1
     31 
     32 # AM_AUTOMAKE_VERSION(VERSION)
     33 # ----------------------------
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     62 # AM_AUX_DIR_EXPAND                                         -*- Autoconf -*-
     63 
     64 # Copyright (C) 2001, 2003, 2005, 2011 Free Software Foundation, Inc.
     65 #
     66 # This file is free software; the Free Software Foundation
     67 # gives unlimited permission to copy and/or distribute it,
     68 # with or without modifications, as long as this notice is preserved.
     69 
     70 # serial 1
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    119 # Copyright (C) 1997, 2000, 2001, 2003, 2004, 2005, 2006, 2008
    120 # Free Software Foundation, Inc.
    121 #
    122 # This file is free software; the Free Software Foundation
    123 # gives unlimited permission to copy and/or distribute it,
    124 # with or without modifications, as long as this notice is preserved.
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    126 # serial 9
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    153 # Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2009,
    154 # 2010, 2011 Free Software Foundation, Inc.
    155 #
    156 # This file is free software; the Free Software Foundation
    157 # gives unlimited permission to copy and/or distribute it,
    158 # with or without modifications, as long as this notice is preserved.
    159 
    160 # serial 12
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    162 # There are a few dirty hacks below to avoid letting `AC_PROG_CC' be
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    286       # When given -MP, icc 7.0 and 7.1 complain thusly:
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    292         am_cv_$1_dependencies_compiler_type=$depmode
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    339 # Generate code to set up dependency tracking.              -*- Autoconf -*-
    340 
    341 # Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2008
    342 # Free Software Foundation, Inc.
    343 #
    344 # This file is free software; the Free Software Foundation
    345 # gives unlimited permission to copy and/or distribute it,
    346 # with or without modifications, as long as this notice is preserved.
    347 
    348 #serial 5
    349 
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    406 # AM_OUTPUT_DEPENDENCY_COMMANDS
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    409 #
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    418 
    419 # Do all the work for Automake.                             -*- Autoconf -*-
    420 
    421 # Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
    422 # 2005, 2006, 2008, 2009 Free Software Foundation, Inc.
    423 #
    424 # This file is free software; the Free Software Foundation
    425 # gives unlimited permission to copy and/or distribute it,
    426 # with or without modifications, as long as this notice is preserved.
    427 
    428 # serial 16
    429 
    430 # This macro actually does too much.  Some checks are only needed if
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    433 # AM_INIT_AUTOMAKE(PACKAGE, VERSION, [NO-DEFINE])
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    461 # test whether we have cygpath
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    463   if (cygpath --version) >/dev/null 2>/dev/null; then
    464     CYGPATH_W='cygpath -w'
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    502 AC_REQUIRE([AC_PROG_MAKE_SET])dnl
    503 AC_REQUIRE([AM_SET_LEADING_DOT])dnl
    504 _AM_IF_OPTION([tar-ustar], [_AM_PROG_TAR([ustar])],
    505 	      [_AM_IF_OPTION([tar-pax], [_AM_PROG_TAR([pax])],
    506 			     [_AM_PROG_TAR([v7])])])
    507 _AM_IF_OPTION([no-dependencies],,
    508 [AC_PROVIDE_IFELSE([AC_PROG_CC],
    509 		  [_AM_DEPENDENCIES(CC)],
    510 		  [define([AC_PROG_CC],
    511 			  defn([AC_PROG_CC])[_AM_DEPENDENCIES(CC)])])dnl
    512 AC_PROVIDE_IFELSE([AC_PROG_CXX],
    513 		  [_AM_DEPENDENCIES(CXX)],
    514 		  [define([AC_PROG_CXX],
    515 			  defn([AC_PROG_CXX])[_AM_DEPENDENCIES(CXX)])])dnl
    516 AC_PROVIDE_IFELSE([AC_PROG_OBJC],
    517 		  [_AM_DEPENDENCIES(OBJC)],
    518 		  [define([AC_PROG_OBJC],
    519 			  defn([AC_PROG_OBJC])[_AM_DEPENDENCIES(OBJC)])])dnl
    520 ])
    521 _AM_IF_OPTION([silent-rules], [AC_REQUIRE([AM_SILENT_RULES])])dnl
    522 dnl The `parallel-tests' driver may need to know about EXEEXT, so add the
    523 dnl `am__EXEEXT' conditional if _AM_COMPILER_EXEEXT was seen.  This macro
    524 dnl is hooked onto _AC_COMPILER_EXEEXT early, see below.
    525 AC_CONFIG_COMMANDS_PRE(dnl
    526 [m4_provide_if([_AM_COMPILER_EXEEXT],
    527   [AM_CONDITIONAL([am__EXEEXT], [test -n "$EXEEXT"])])])dnl
    528 ])
    529 
    530 dnl Hook into `_AC_COMPILER_EXEEXT' early to learn its expansion.  Do not
    531 dnl add the conditional right here, as _AC_COMPILER_EXEEXT may be further
    532 dnl mangled by Autoconf and run in a shell conditional statement.
    533 m4_define([_AC_COMPILER_EXEEXT],
    534 m4_defn([_AC_COMPILER_EXEEXT])[m4_provide([_AM_COMPILER_EXEEXT])])
    535 
    536 
    537 # When config.status generates a header, we must update the stamp-h file.
    538 # This file resides in the same directory as the config header
    539 # that is generated.  The stamp files are numbered to have different names.
    540 
    541 # Autoconf calls _AC_AM_CONFIG_HEADER_HOOK (when defined) in the
    542 # loop where config.status creates the headers, so we can generate
    543 # our stamp files there.
    544 AC_DEFUN([_AC_AM_CONFIG_HEADER_HOOK],
    545 [# Compute $1's index in $config_headers.
    546 _am_arg=$1
    547 _am_stamp_count=1
    548 for _am_header in $config_headers :; do
    549   case $_am_header in
    550     $_am_arg | $_am_arg:* )
    551       break ;;
    552     * )
    553       _am_stamp_count=`expr $_am_stamp_count + 1` ;;
    554   esac
    555 done
    556 echo "timestamp for $_am_arg" >`AS_DIRNAME(["$_am_arg"])`/stamp-h[]$_am_stamp_count])
    557 
    558 # Copyright (C) 2001, 2003, 2005, 2008, 2011 Free Software Foundation,
    559 # Inc.
    560 #
    561 # This file is free software; the Free Software Foundation
    562 # gives unlimited permission to copy and/or distribute it,
    563 # with or without modifications, as long as this notice is preserved.
    564 
    565 # serial 1
    566 
    567 # AM_PROG_INSTALL_SH
    568 # ------------------
    569 # Define $install_sh.
    570 AC_DEFUN([AM_PROG_INSTALL_SH],
    571 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
    572 if test x"${install_sh}" != xset; then
    573   case $am_aux_dir in
    574   *\ * | *\	*)
    575     install_sh="\${SHELL} '$am_aux_dir/install-sh'" ;;
    576   *)
    577     install_sh="\${SHELL} $am_aux_dir/install-sh"
    578   esac
    579 fi
    580 AC_SUBST(install_sh)])
    581 
    582 # Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2005
    583 # Free Software Foundation, Inc.
    584 #
    585 # This file is free software; the Free Software Foundation
    586 # gives unlimited permission to copy and/or distribute it,
    587 # with or without modifications, as long as this notice is preserved.
    588 
    589 # serial 5
    590 
    591 # AM_PROG_LEX
    592 # -----------
    593 # Autoconf leaves LEX=: if lex or flex can't be found.  Change that to a
    594 # "missing" invocation, for better error output.
    595 AC_DEFUN([AM_PROG_LEX],
    596 [AC_PREREQ(2.50)dnl
    597 AC_REQUIRE([AM_MISSING_HAS_RUN])dnl
    598 AC_REQUIRE([AC_PROG_LEX])dnl
    599 if test "$LEX" = :; then
    600   LEX=${am_missing_run}flex
    601 fi])
    602 
    603 # Add --enable-maintainer-mode option to configure.         -*- Autoconf -*-
    604 # From Jim Meyering
    605 
    606 # Copyright (C) 1996, 1998, 2000, 2001, 2002, 2003, 2004, 2005, 2008,
    607 # 2011 Free Software Foundation, Inc.
    608 #
    609 # This file is free software; the Free Software Foundation
    610 # gives unlimited permission to copy and/or distribute it,
    611 # with or without modifications, as long as this notice is preserved.
    612 
    613 # serial 5
    614 
    615 # AM_MAINTAINER_MODE([DEFAULT-MODE])
    616 # ----------------------------------
    617 # Control maintainer-specific portions of Makefiles.
    618 # Default is to disable them, unless `enable' is passed literally.
    619 # For symmetry, `disable' may be passed as well.  Anyway, the user
    620 # can override the default with the --enable/--disable switch.
    621 AC_DEFUN([AM_MAINTAINER_MODE],
    622 [m4_case(m4_default([$1], [disable]),
    623        [enable], [m4_define([am_maintainer_other], [disable])],
    624        [disable], [m4_define([am_maintainer_other], [enable])],
    625        [m4_define([am_maintainer_other], [enable])
    626         m4_warn([syntax], [unexpected argument to AM@&t@_MAINTAINER_MODE: $1])])
    627 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
    628   dnl maintainer-mode's default is 'disable' unless 'enable' is passed
    629   AC_ARG_ENABLE([maintainer-mode],
    630 [  --][am_maintainer_other][-maintainer-mode  am_maintainer_other make rules and dependencies not useful
    631 			  (and sometimes confusing) to the casual installer],
    632       [USE_MAINTAINER_MODE=$enableval],
    633       [USE_MAINTAINER_MODE=]m4_if(am_maintainer_other, [enable], [no], [yes]))
    634   AC_MSG_RESULT([$USE_MAINTAINER_MODE])
    635   AM_CONDITIONAL([MAINTAINER_MODE], [test $USE_MAINTAINER_MODE = yes])
    636   MAINT=$MAINTAINER_MODE_TRUE
    637   AC_SUBST([MAINT])dnl
    638 ]
    639 )
    640 
    641 AU_DEFUN([jm_MAINTAINER_MODE], [AM_MAINTAINER_MODE])
    642 
    643 # Check to see how 'make' treats includes.	            -*- Autoconf -*-
    644 
    645 # Copyright (C) 2001, 2002, 2003, 2005, 2009  Free Software Foundation, Inc.
    646 #
    647 # This file is free software; the Free Software Foundation
    648 # gives unlimited permission to copy and/or distribute it,
    649 # with or without modifications, as long as this notice is preserved.
    650 
    651 # serial 4
    652 
    653 # AM_MAKE_INCLUDE()
    654 # -----------------
    655 # Check to see how make treats includes.
    656 AC_DEFUN([AM_MAKE_INCLUDE],
    657 [am_make=${MAKE-make}
    658 cat > confinc << 'END'
    659 am__doit:
    660 	@echo this is the am__doit target
    661 .PHONY: am__doit
    662 END
    663 # If we don't find an include directive, just comment out the code.
    664 AC_MSG_CHECKING([for style of include used by $am_make])
    665 am__include="#"
    666 am__quote=
    667 _am_result=none
    668 # First try GNU make style include.
    669 echo "include confinc" > confmf
    670 # Ignore all kinds of additional output from `make'.
    671 case `$am_make -s -f confmf 2> /dev/null` in #(
    672 *the\ am__doit\ target*)
    673   am__include=include
    674   am__quote=
    675   _am_result=GNU
    676   ;;
    677 esac
    678 # Now try BSD make style include.
    679 if test "$am__include" = "#"; then
    680    echo '.include "confinc"' > confmf
    681    case `$am_make -s -f confmf 2> /dev/null` in #(
    682    *the\ am__doit\ target*)
    683      am__include=.include
    684      am__quote="\""
    685      _am_result=BSD
    686      ;;
    687    esac
    688 fi
    689 AC_SUBST([am__include])
    690 AC_SUBST([am__quote])
    691 AC_MSG_RESULT([$_am_result])
    692 rm -f confinc confmf
    693 ])
    694 
    695 # Fake the existence of programs that GNU maintainers use.  -*- Autoconf -*-
    696 
    697 # Copyright (C) 1997, 1999, 2000, 2001, 2003, 2004, 2005, 2008
    698 # Free Software Foundation, Inc.
    699 #
    700 # This file is free software; the Free Software Foundation
    701 # gives unlimited permission to copy and/or distribute it,
    702 # with or without modifications, as long as this notice is preserved.
    703 
    704 # serial 6
    705 
    706 # AM_MISSING_PROG(NAME, PROGRAM)
    707 # ------------------------------
    708 AC_DEFUN([AM_MISSING_PROG],
    709 [AC_REQUIRE([AM_MISSING_HAS_RUN])
    710 $1=${$1-"${am_missing_run}$2"}
    711 AC_SUBST($1)])
    712 
    713 
    714 # AM_MISSING_HAS_RUN
    715 # ------------------
    716 # Define MISSING if not defined so far and test if it supports --run.
    717 # If it does, set am_missing_run to use it, otherwise, to nothing.
    718 AC_DEFUN([AM_MISSING_HAS_RUN],
    719 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
    720 AC_REQUIRE_AUX_FILE([missing])dnl
    721 if test x"${MISSING+set}" != xset; then
    722   case $am_aux_dir in
    723   *\ * | *\	*)
    724     MISSING="\${SHELL} \"$am_aux_dir/missing\"" ;;
    725   *)
    726     MISSING="\${SHELL} $am_aux_dir/missing" ;;
    727   esac
    728 fi
    729 # Use eval to expand $SHELL
    730 if eval "$MISSING --run true"; then
    731   am_missing_run="$MISSING --run "
    732 else
    733   am_missing_run=
    734   AC_MSG_WARN([`missing' script is too old or missing])
    735 fi
    736 ])
    737 
    738 # Copyright (C) 2003, 2004, 2005, 2006, 2011 Free Software Foundation,
    739 # Inc.
    740 #
    741 # This file is free software; the Free Software Foundation
    742 # gives unlimited permission to copy and/or distribute it,
    743 # with or without modifications, as long as this notice is preserved.
    744 
    745 # serial 1
    746 
    747 # AM_PROG_MKDIR_P
    748 # ---------------
    749 # Check for `mkdir -p'.
    750 AC_DEFUN([AM_PROG_MKDIR_P],
    751 [AC_PREREQ([2.60])dnl
    752 AC_REQUIRE([AC_PROG_MKDIR_P])dnl
    753 dnl Automake 1.8 to 1.9.6 used to define mkdir_p.  We now use MKDIR_P,
    754 dnl while keeping a definition of mkdir_p for backward compatibility.
    755 dnl @MKDIR_P@ is magic: AC_OUTPUT adjusts its value for each Makefile.
    756 dnl However we cannot define mkdir_p as $(MKDIR_P) for the sake of
    757 dnl Makefile.ins that do not define MKDIR_P, so we do our own
    758 dnl adjustment using top_builddir (which is defined more often than
    759 dnl MKDIR_P).
    760 AC_SUBST([mkdir_p], ["$MKDIR_P"])dnl
    761 case $mkdir_p in
    762   [[\\/$]]* | ?:[[\\/]]*) ;;
    763   */*) mkdir_p="\$(top_builddir)/$mkdir_p" ;;
    764 esac
    765 ])
    766 
    767 # Helper functions for option handling.                     -*- Autoconf -*-
    768 
    769 # Copyright (C) 2001, 2002, 2003, 2005, 2008, 2010 Free Software
    770 # Foundation, Inc.
    771 #
    772 # This file is free software; the Free Software Foundation
    773 # gives unlimited permission to copy and/or distribute it,
    774 # with or without modifications, as long as this notice is preserved.
    775 
    776 # serial 5
    777 
    778 # _AM_MANGLE_OPTION(NAME)
    779 # -----------------------
    780 AC_DEFUN([_AM_MANGLE_OPTION],
    781 [[_AM_OPTION_]m4_bpatsubst($1, [[^a-zA-Z0-9_]], [_])])
    782 
    783 # _AM_SET_OPTION(NAME)
    784 # --------------------
    785 # Set option NAME.  Presently that only means defining a flag for this option.
    786 AC_DEFUN([_AM_SET_OPTION],
    787 [m4_define(_AM_MANGLE_OPTION([$1]), 1)])
    788 
    789 # _AM_SET_OPTIONS(OPTIONS)
    790 # ------------------------
    791 # OPTIONS is a space-separated list of Automake options.
    792 AC_DEFUN([_AM_SET_OPTIONS],
    793 [m4_foreach_w([_AM_Option], [$1], [_AM_SET_OPTION(_AM_Option)])])
    794 
    795 # _AM_IF_OPTION(OPTION, IF-SET, [IF-NOT-SET])
    796 # -------------------------------------------
    797 # Execute IF-SET if OPTION is set, IF-NOT-SET otherwise.
    798 AC_DEFUN([_AM_IF_OPTION],
    799 [m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])])
    800 
    801 # Check to make sure that the build environment is sane.    -*- Autoconf -*-
    802 
    803 # Copyright (C) 1996, 1997, 2000, 2001, 2003, 2005, 2008
    804 # Free Software Foundation, Inc.
    805 #
    806 # This file is free software; the Free Software Foundation
    807 # gives unlimited permission to copy and/or distribute it,
    808 # with or without modifications, as long as this notice is preserved.
    809 
    810 # serial 5
    811 
    812 # AM_SANITY_CHECK
    813 # ---------------
    814 AC_DEFUN([AM_SANITY_CHECK],
    815 [AC_MSG_CHECKING([whether build environment is sane])
    816 # Just in case
    817 sleep 1
    818 echo timestamp > conftest.file
    819 # Reject unsafe characters in $srcdir or the absolute working directory
    820 # name.  Accept space and tab only in the latter.
    821 am_lf='
    822 '
    823 case `pwd` in
    824   *[[\\\"\#\$\&\'\`$am_lf]]*)
    825     AC_MSG_ERROR([unsafe absolute working directory name]);;
    826 esac
    827 case $srcdir in
    828   *[[\\\"\#\$\&\'\`$am_lf\ \	]]*)
    829     AC_MSG_ERROR([unsafe srcdir value: `$srcdir']);;
    830 esac
    831 
    832 # Do `set' in a subshell so we don't clobber the current shell's
    833 # arguments.  Must try -L first in case configure is actually a
    834 # symlink; some systems play weird games with the mod time of symlinks
    835 # (eg FreeBSD returns the mod time of the symlink's containing
    836 # directory).
    837 if (
    838    set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null`
    839    if test "$[*]" = "X"; then
    840       # -L didn't work.
    841       set X `ls -t "$srcdir/configure" conftest.file`
    842    fi
    843    rm -f conftest.file
    844    if test "$[*]" != "X $srcdir/configure conftest.file" \
    845       && test "$[*]" != "X conftest.file $srcdir/configure"; then
    846 
    847       # If neither matched, then we have a broken ls.  This can happen
    848       # if, for instance, CONFIG_SHELL is bash and it inherits a
    849       # broken ls alias from the environment.  This has actually
    850       # happened.  Such a system could not be considered "sane".
    851       AC_MSG_ERROR([ls -t appears to fail.  Make sure there is not a broken
    852 alias in your environment])
    853    fi
    854 
    855    test "$[2]" = conftest.file
    856    )
    857 then
    858    # Ok.
    859    :
    860 else
    861    AC_MSG_ERROR([newly created file is older than distributed files!
    862 Check your system clock])
    863 fi
    864 AC_MSG_RESULT(yes)])
    865 
    866 # Copyright (C) 2001, 2003, 2005, 2011 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 # serial 1
    873 
    874 # AM_PROG_INSTALL_STRIP
    875 # ---------------------
    876 # One issue with vendor `install' (even GNU) is that you can't
    877 # specify the program used to strip binaries.  This is especially
    878 # annoying in cross-compiling environments, where the build's strip
    879 # is unlikely to handle the host's binaries.
    880 # Fortunately install-sh will honor a STRIPPROG variable, so we
    881 # always use install-sh in `make install-strip', and initialize
    882 # STRIPPROG with the value of the STRIP variable (set by the user).
    883 AC_DEFUN([AM_PROG_INSTALL_STRIP],
    884 [AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
    885 # Installed binaries are usually stripped using `strip' when the user
    886 # run `make install-strip'.  However `strip' might not be the right
    887 # tool to use in cross-compilation environments, therefore Automake
    888 # will honor the `STRIP' environment variable to overrule this program.
    889 dnl Don't test for $cross_compiling = yes, because it might be `maybe'.
    890 if test "$cross_compiling" != no; then
    891   AC_CHECK_TOOL([STRIP], [strip], :)
    892 fi
    893 INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
    894 AC_SUBST([INSTALL_STRIP_PROGRAM])])
    895 
    896 # Copyright (C) 2006, 2008, 2010 Free Software Foundation, Inc.
    897 #
    898 # This file is free software; the Free Software Foundation
    899 # gives unlimited permission to copy and/or distribute it,
    900 # with or without modifications, as long as this notice is preserved.
    901 
    902 # serial 3
    903 
    904 # _AM_SUBST_NOTMAKE(VARIABLE)
    905 # ---------------------------
    906 # Prevent Automake from outputting VARIABLE = @VARIABLE@ in Makefile.in.
    907 # This macro is traced by Automake.
    908 AC_DEFUN([_AM_SUBST_NOTMAKE])
    909 
    910 # AM_SUBST_NOTMAKE(VARIABLE)
    911 # --------------------------
    912 # Public sister of _AM_SUBST_NOTMAKE.
    913 AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE($@)])
    914 
    915 # Check how to create a tarball.                            -*- Autoconf -*-
    916 
    917 # Copyright (C) 2004, 2005, 2012 Free Software Foundation, Inc.
    918 #
    919 # This file is free software; the Free Software Foundation
    920 # gives unlimited permission to copy and/or distribute it,
    921 # with or without modifications, as long as this notice is preserved.
    922 
    923 # serial 2
    924 
    925 # _AM_PROG_TAR(FORMAT)
    926 # --------------------
    927 # Check how to create a tarball in format FORMAT.
    928 # FORMAT should be one of `v7', `ustar', or `pax'.
    929 #
    930 # Substitute a variable $(am__tar) that is a command
    931 # writing to stdout a FORMAT-tarball containing the directory
    932 # $tardir.
    933 #     tardir=directory && $(am__tar) > result.tar
    934 #
    935 # Substitute a variable $(am__untar) that extract such
    936 # a tarball read from stdin.
    937 #     $(am__untar) < result.tar
    938 AC_DEFUN([_AM_PROG_TAR],
    939 [# Always define AMTAR for backward compatibility.  Yes, it's still used
    940 # in the wild :-(  We should find a proper way to deprecate it ...
    941 AC_SUBST([AMTAR], ['$${TAR-tar}'])
    942 m4_if([$1], [v7],
    943      [am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'],
    944      [m4_case([$1], [ustar],, [pax],,
    945               [m4_fatal([Unknown tar format])])
    946 AC_MSG_CHECKING([how to create a $1 tar archive])
    947 # Loop over all known methods to create a tar archive until one works.
    948 _am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none'
    949 _am_tools=${am_cv_prog_tar_$1-$_am_tools}
    950 # Do not fold the above two line into one, because Tru64 sh and
    951 # Solaris sh will not grok spaces in the rhs of `-'.
    952 for _am_tool in $_am_tools
    953 do
    954   case $_am_tool in
    955   gnutar)
    956     for _am_tar in tar gnutar gtar;
    957     do
    958       AM_RUN_LOG([$_am_tar --version]) && break
    959     done
    960     am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"'
    961     am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"'
    962     am__untar="$_am_tar -xf -"
    963     ;;
    964   plaintar)
    965     # Must skip GNU tar: if it does not support --format= it doesn't create
    966     # ustar tarball either.
    967     (tar --version) >/dev/null 2>&1 && continue
    968     am__tar='tar chf - "$$tardir"'
    969     am__tar_='tar chf - "$tardir"'
    970     am__untar='tar xf -'
    971     ;;
    972   pax)
    973     am__tar='pax -L -x $1 -w "$$tardir"'
    974     am__tar_='pax -L -x $1 -w "$tardir"'
    975     am__untar='pax -r'
    976     ;;
    977   cpio)
    978     am__tar='find "$$tardir" -print | cpio -o -H $1 -L'
    979     am__tar_='find "$tardir" -print | cpio -o -H $1 -L'
    980     am__untar='cpio -i -H $1 -d'
    981     ;;
    982   none)
    983     am__tar=false
    984     am__tar_=false
    985     am__untar=false
    986     ;;
    987   esac
    988 
    989   # If the value was cached, stop now.  We just wanted to have am__tar
    990   # and am__untar set.
    991   test -n "${am_cv_prog_tar_$1}" && break
    992 
    993   # tar/untar a dummy directory, and stop if the command works
    994   rm -rf conftest.dir
    995   mkdir conftest.dir
    996   echo GrepMe > conftest.dir/file
    997   AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar])
    998   rm -rf conftest.dir
    999   if test -s conftest.tar; then
   1000     AM_RUN_LOG([$am__untar <conftest.tar])
   1001     grep GrepMe conftest.dir/file >/dev/null 2>&1 && break
   1002   fi
   1003 done
   1004 rm -rf conftest.dir
   1005 
   1006 AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool])
   1007 AC_MSG_RESULT([$am_cv_prog_tar_$1])])
   1008 AC_SUBST([am__tar])
   1009 AC_SUBST([am__untar])
   1010 ]) # _AM_PROG_TAR
   1011 
   1012 m4_include([../bfd/acinclude.m4])
   1013 m4_include([../bfd/warning.m4])
   1014 m4_include([../config/acx.m4])
   1015 m4_include([../config/depstand.m4])
   1016 m4_include([../config/gettext-sister.m4])
   1017 m4_include([../config/largefile.m4])
   1018 m4_include([../config/lcmessage.m4])
   1019 m4_include([../config/lead-dot.m4])
   1020 m4_include([../config/nls.m4])
   1021 m4_include([../config/override.m4])
   1022 m4_include([../config/plugins.m4])
   1023 m4_include([../config/po.m4])
   1024 m4_include([../config/progtest.m4])
   1025 m4_include([../config/zlib.m4])
   1026 m4_include([../libtool.m4])
   1027 m4_include([../ltoptions.m4])
   1028 m4_include([../ltsugar.m4])
   1029 m4_include([../ltversion.m4])
   1030 m4_include([../lt~obsolete.m4])
   1031 m4_include([acinclude.m4])
   1032