libclamav/c++/aclocal.m4
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 # Copyright (C) 1996-2017 Free Software Foundation, Inc.
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 # This file is free software; the Free Software Foundation
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 # with or without modifications, as long as this notice is preserved.
 
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 AC_PROVIDE_IFELSE([AC_PROG_CXX],
e96b53b6
 		  [_AM_DEPENDENCIES([CXX])],
 		  [m4_define([AC_PROG_CXX],
 			     m4_defn([AC_PROG_CXX])[_AM_DEPENDENCIES([CXX])])])dnl
2c4c4640
 AC_PROVIDE_IFELSE([AC_PROG_OBJC],
e96b53b6
 		  [_AM_DEPENDENCIES([OBJC])],
 		  [m4_define([AC_PROG_OBJC],
 			     m4_defn([AC_PROG_OBJC])[_AM_DEPENDENCIES([OBJC])])])dnl
 AC_PROVIDE_IFELSE([AC_PROG_OBJCXX],
 		  [_AM_DEPENDENCIES([OBJCXX])],
 		  [m4_define([AC_PROG_OBJCXX],
 			     m4_defn([AC_PROG_OBJCXX])[_AM_DEPENDENCIES([OBJCXX])])])dnl
2c4c4640
 ])
e96b53b6
 AC_REQUIRE([AM_SILENT_RULES])dnl
 dnl The testsuite driver may need to know about EXEEXT, so add the
 dnl 'am__EXEEXT' conditional if _AM_COMPILER_EXEEXT was seen.  This
 dnl macro is hooked onto _AC_COMPILER_EXEEXT early, see below.
2c4c4640
 AC_CONFIG_COMMANDS_PRE(dnl
 [m4_provide_if([_AM_COMPILER_EXEEXT],
   [AM_CONDITIONAL([am__EXEEXT], [test -n "$EXEEXT"])])])dnl
c0ac5447
 
e96b53b6
 # POSIX will say in a future version that running "rm -f" with no argument
 # is OK; and we want to be able to make that assumption in our Makefile
 # recipes.  So use an aggressive probe to check that the usage we want is
 # actually supported "in the wild" to an acceptable degree.
 # See automake bug#10828.
 # To make any issue more visible, cause the running configure to be aborted
 # by default if the 'rm' program in use doesn't match our expectations; the
 # user can still override this though.
 if rm -f && rm -fr && rm -rf; then : OK; else
   cat >&2 <<'END'
 Oops!
 
 Your 'rm' program seems unable to run without file operands specified
 on the command line, even when the '-f' option is present.  This is contrary
 to the behaviour of most rm programs out there, and not conforming with
 the upcoming POSIX standard: <http://austingroupbugs.net/view.php?id=542>
 
 Please tell bug-automake@gnu.org about your system, including the value
 of your $PATH and any error possibly output before this message.  This
 can help us improve future automake versions.
 
 END
   if test x"$ACCEPT_INFERIOR_RM_PROGRAM" = x"yes"; then
     echo 'Configuration will proceed anyway, since you have set the' >&2
     echo 'ACCEPT_INFERIOR_RM_PROGRAM variable to "yes"' >&2
     echo >&2
   else
     cat >&2 <<'END'
 Aborting the configuration process, to ensure you take notice of the issue.
 
 You can download and install GNU coreutils to get an 'rm' implementation
 that behaves properly: <http://www.gnu.org/software/coreutils/>.
 
 If you want to complete the configuration process using your problematic
 'rm' anyway, export the environment variable ACCEPT_INFERIOR_RM_PROGRAM
 to "yes", and re-run configure.
 
 END
     AC_MSG_ERROR([Your 'rm' program is bad, sorry.])
   fi
6c1e7ec0
 fi
 dnl The trailing newline in this macro's definition is deliberate, for
 dnl backward compatibility and to allow trailing 'dnl'-style comments
 dnl after the AM_INIT_AUTOMAKE invocation. See automake bug#16841.
 ])
e96b53b6
 
 dnl Hook into '_AC_COMPILER_EXEEXT' early to learn its expansion.  Do not
2c4c4640
 dnl add the conditional right here, as _AC_COMPILER_EXEEXT may be further
 dnl mangled by Autoconf and run in a shell conditional statement.
 m4_define([_AC_COMPILER_EXEEXT],
 m4_defn([_AC_COMPILER_EXEEXT])[m4_provide([_AM_COMPILER_EXEEXT])])
 
 # When config.status generates a header, we must update the stamp-h file.
 # This file resides in the same directory as the config header
 # that is generated.  The stamp files are numbered to have different names.
 
 # Autoconf calls _AC_AM_CONFIG_HEADER_HOOK (when defined) in the
 # loop where config.status creates the headers, so we can generate
 # our stamp files there.
 AC_DEFUN([_AC_AM_CONFIG_HEADER_HOOK],
 [# Compute $1's index in $config_headers.
 _am_arg=$1
 _am_stamp_count=1
 for _am_header in $config_headers :; do
   case $_am_header in
     $_am_arg | $_am_arg:* )
       break ;;
     * )
       _am_stamp_count=`expr $_am_stamp_count + 1` ;;
   esac
 done
 echo "timestamp for $_am_arg" >`AS_DIRNAME(["$_am_arg"])`/stamp-h[]$_am_stamp_count])
 
6c1e7ec0
 # Copyright (C) 2001-2017 Free Software Foundation, Inc.
2c4c4640
 #
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
 # with or without modifications, as long as this notice is preserved.
 
 # AM_PROG_INSTALL_SH
 # ------------------
 # Define $install_sh.
 AC_DEFUN([AM_PROG_INSTALL_SH],
 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
6c1e7ec0
 if test x"${install_sh+set}" != xset; then
2c4c4640
   case $am_aux_dir in
   *\ * | *\	*)
     install_sh="\${SHELL} '$am_aux_dir/install-sh'" ;;
   *)
     install_sh="\${SHELL} $am_aux_dir/install-sh"
   esac
 fi
e96b53b6
 AC_SUBST([install_sh])])
2c4c4640
 
6c1e7ec0
 # Copyright (C) 2003-2017 Free Software Foundation, Inc.
2c4c4640
 #
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
 # with or without modifications, as long as this notice is preserved.
 
 # Check whether the underlying file-system supports filenames
 # with a leading dot.  For instance MS-DOS doesn't.
 AC_DEFUN([AM_SET_LEADING_DOT],
 [rm -rf .tst 2>/dev/null
 mkdir .tst 2>/dev/null
 if test -d .tst; then
   am__leading_dot=.
 else
   am__leading_dot=_
 fi
 rmdir .tst 2>/dev/null
 AC_SUBST([am__leading_dot])])
 
48b79163
 # Add --enable-maintainer-mode option to configure.         -*- Autoconf -*-
 # From Jim Meyering
 
6c1e7ec0
 # Copyright (C) 1996-2017 Free Software Foundation, Inc.
48b79163
 #
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
 # with or without modifications, as long as this notice is preserved.
 
 # AM_MAINTAINER_MODE([DEFAULT-MODE])
 # ----------------------------------
 # Control maintainer-specific portions of Makefiles.
e96b53b6
 # Default is to disable them, unless 'enable' is passed literally.
 # For symmetry, 'disable' may be passed as well.  Anyway, the user
48b79163
 # can override the default with the --enable/--disable switch.
 AC_DEFUN([AM_MAINTAINER_MODE],
 [m4_case(m4_default([$1], [disable]),
        [enable], [m4_define([am_maintainer_other], [disable])],
        [disable], [m4_define([am_maintainer_other], [enable])],
        [m4_define([am_maintainer_other], [enable])
         m4_warn([syntax], [unexpected argument to AM@&t@_MAINTAINER_MODE: $1])])
a2a004df
 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
48b79163
   dnl maintainer-mode's default is 'disable' unless 'enable' is passed
   AC_ARG_ENABLE([maintainer-mode],
e96b53b6
     [AS_HELP_STRING([--]am_maintainer_other[-maintainer-mode],
       am_maintainer_other[ make rules and dependencies not useful
       (and sometimes confusing) to the casual installer])],
     [USE_MAINTAINER_MODE=$enableval],
     [USE_MAINTAINER_MODE=]m4_if(am_maintainer_other, [enable], [no], [yes]))
48b79163
   AC_MSG_RESULT([$USE_MAINTAINER_MODE])
   AM_CONDITIONAL([MAINTAINER_MODE], [test $USE_MAINTAINER_MODE = yes])
   MAINT=$MAINTAINER_MODE_TRUE
   AC_SUBST([MAINT])dnl
 ]
 )
 
2c4c4640
 # Check to see how 'make' treats includes.	            -*- Autoconf -*-
 
6c1e7ec0
 # Copyright (C) 2001-2017 Free Software Foundation, Inc.
2c4c4640
 #
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
 # with or without modifications, as long as this notice is preserved.
 
 # AM_MAKE_INCLUDE()
 # -----------------
 # Check to see how make treats includes.
 AC_DEFUN([AM_MAKE_INCLUDE],
 [am_make=${MAKE-make}
 cat > confinc << 'END'
 am__doit:
 	@echo this is the am__doit target
 .PHONY: am__doit
 END
 # If we don't find an include directive, just comment out the code.
 AC_MSG_CHECKING([for style of include used by $am_make])
 am__include="#"
 am__quote=
 _am_result=none
 # First try GNU make style include.
 echo "include confinc" > confmf
e96b53b6
 # Ignore all kinds of additional output from 'make'.
2c4c4640
 case `$am_make -s -f confmf 2> /dev/null` in #(
 *the\ am__doit\ target*)
   am__include=include
   am__quote=
   _am_result=GNU
   ;;
 esac
 # Now try BSD make style include.
 if test "$am__include" = "#"; then
    echo '.include "confinc"' > confmf
    case `$am_make -s -f confmf 2> /dev/null` in #(
    *the\ am__doit\ target*)
      am__include=.include
      am__quote="\""
      _am_result=BSD
      ;;
    esac
 fi
 AC_SUBST([am__include])
 AC_SUBST([am__quote])
 AC_MSG_RESULT([$_am_result])
 rm -f confinc confmf
 ])
 
 # Fake the existence of programs that GNU maintainers use.  -*- Autoconf -*-
 
6c1e7ec0
 # Copyright (C) 1997-2017 Free Software Foundation, Inc.
2c4c4640
 #
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
 # with or without modifications, as long as this notice is preserved.
 
 # AM_MISSING_PROG(NAME, PROGRAM)
 # ------------------------------
 AC_DEFUN([AM_MISSING_PROG],
 [AC_REQUIRE([AM_MISSING_HAS_RUN])
 $1=${$1-"${am_missing_run}$2"}
 AC_SUBST($1)])
 
 # AM_MISSING_HAS_RUN
 # ------------------
e96b53b6
 # Define MISSING if not defined so far and test if it is modern enough.
 # If it is, set am_missing_run to use it, otherwise, to nothing.
2c4c4640
 AC_DEFUN([AM_MISSING_HAS_RUN],
 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
 AC_REQUIRE_AUX_FILE([missing])dnl
 if test x"${MISSING+set}" != xset; then
   case $am_aux_dir in
   *\ * | *\	*)
     MISSING="\${SHELL} \"$am_aux_dir/missing\"" ;;
   *)
     MISSING="\${SHELL} $am_aux_dir/missing" ;;
   esac
 fi
 # Use eval to expand $SHELL
e96b53b6
 if eval "$MISSING --is-lightweight"; then
   am_missing_run="$MISSING "
2c4c4640
 else
   am_missing_run=
e96b53b6
   AC_MSG_WARN(['missing' script is too old or missing])
2c4c4640
 fi
 ])
 
 # Helper functions for option handling.                     -*- Autoconf -*-
 
6c1e7ec0
 # Copyright (C) 2001-2017 Free Software Foundation, Inc.
2c4c4640
 #
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
 # with or without modifications, as long as this notice is preserved.
 
 # _AM_MANGLE_OPTION(NAME)
 # -----------------------
 AC_DEFUN([_AM_MANGLE_OPTION],
 [[_AM_OPTION_]m4_bpatsubst($1, [[^a-zA-Z0-9_]], [_])])
 
 # _AM_SET_OPTION(NAME)
a2a004df
 # --------------------
2c4c4640
 # Set option NAME.  Presently that only means defining a flag for this option.
 AC_DEFUN([_AM_SET_OPTION],
e96b53b6
 [m4_define(_AM_MANGLE_OPTION([$1]), [1])])
2c4c4640
 
 # _AM_SET_OPTIONS(OPTIONS)
a2a004df
 # ------------------------
2c4c4640
 # OPTIONS is a space-separated list of Automake options.
 AC_DEFUN([_AM_SET_OPTIONS],
 [m4_foreach_w([_AM_Option], [$1], [_AM_SET_OPTION(_AM_Option)])])
 
 # _AM_IF_OPTION(OPTION, IF-SET, [IF-NOT-SET])
 # -------------------------------------------
 # Execute IF-SET if OPTION is set, IF-NOT-SET otherwise.
 AC_DEFUN([_AM_IF_OPTION],
 [m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])])
 
6c1e7ec0
 # Copyright (C) 1999-2017 Free Software Foundation, Inc.
930b9395
 #
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
 # with or without modifications, as long as this notice is preserved.
 
e96b53b6
 # _AM_PROG_CC_C_O
 # ---------------
 # Like AC_PROG_CC_C_O, but changed for automake.  We rewrite AC_PROG_CC
 # to automatically call this.
 AC_DEFUN([_AM_PROG_CC_C_O],
 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
 AC_REQUIRE_AUX_FILE([compile])dnl
 AC_LANG_PUSH([C])dnl
 AC_CACHE_CHECK(
   [whether $CC understands -c and -o together],
   [am_cv_prog_cc_c_o],
   [AC_LANG_CONFTEST([AC_LANG_PROGRAM([])])
   # Make sure it works both with $CC and with simple cc.
   # Following AC_PROG_CC_C_O, we do the test twice because some
   # compilers refuse to overwrite an existing .o file with -o,
   # though they will create one.
   am_cv_prog_cc_c_o=yes
   for am_i in 1 2; do
     if AM_RUN_LOG([$CC -c conftest.$ac_ext -o conftest2.$ac_objext]) \
          && test -f conftest2.$ac_objext; then
       : OK
     else
       am_cv_prog_cc_c_o=no
       break
     fi
   done
   rm -f core conftest*
   unset am_i])
 if test "$am_cv_prog_cc_c_o" != yes; then
    # Losing compiler, so override with the script.
    # FIXME: It is wrong to rewrite CC.
    # But if we don't then we get into trouble of one sort or another.
    # A longer-term fix would be to have automake use am__CC in this case,
    # and then we could set am__CC="\$(top_srcdir)/compile \$(CC)"
    CC="$am_aux_dir/compile $CC"
 fi
 AC_LANG_POP([C])])
 
 # For backward compatibility.
 AC_DEFUN_ONCE([AM_PROG_CC_C_O], [AC_REQUIRE([AC_PROG_CC])])
 
6c1e7ec0
 # Copyright (C) 2001-2017 Free Software Foundation, Inc.
e96b53b6
 #
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
 # with or without modifications, as long as this notice is preserved.
1b506b82
 
 # AM_RUN_LOG(COMMAND)
 # -------------------
 # Run COMMAND, save the exit status in ac_status, and log it.
 # (This has been adapted from Autoconf's _AC_RUN_LOG macro.)
 AC_DEFUN([AM_RUN_LOG],
 [{ echo "$as_me:$LINENO: $1" >&AS_MESSAGE_LOG_FD
    ($1) >&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD
    ac_status=$?
    echo "$as_me:$LINENO: \$? = $ac_status" >&AS_MESSAGE_LOG_FD
    (exit $ac_status); }])
 
2c4c4640
 # Check to make sure that the build environment is sane.    -*- Autoconf -*-
 
6c1e7ec0
 # Copyright (C) 1996-2017 Free Software Foundation, Inc.
2c4c4640
 #
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
 # with or without modifications, as long as this notice is preserved.
 
 # AM_SANITY_CHECK
 # ---------------
 AC_DEFUN([AM_SANITY_CHECK],
 [AC_MSG_CHECKING([whether build environment is sane])
 # Reject unsafe characters in $srcdir or the absolute working directory
 # name.  Accept space and tab only in the latter.
 am_lf='
 '
 case `pwd` in
   *[[\\\"\#\$\&\'\`$am_lf]]*)
     AC_MSG_ERROR([unsafe absolute working directory name]);;
 esac
 case $srcdir in
   *[[\\\"\#\$\&\'\`$am_lf\ \	]]*)
e96b53b6
     AC_MSG_ERROR([unsafe srcdir value: '$srcdir']);;
2c4c4640
 esac
 
e96b53b6
 # Do 'set' in a subshell so we don't clobber the current shell's
2c4c4640
 # arguments.  Must try -L first in case configure is actually a
 # symlink; some systems play weird games with the mod time of symlinks
 # (eg FreeBSD returns the mod time of the symlink's containing
 # directory).
 if (
e96b53b6
    am_has_slept=no
    for am_try in 1 2; do
      echo "timestamp, slept: $am_has_slept" > conftest.file
      set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null`
      if test "$[*]" = "X"; then
 	# -L didn't work.
 	set X `ls -t "$srcdir/configure" conftest.file`
      fi
      if test "$[*]" != "X $srcdir/configure conftest.file" \
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 	# If neither matched, then we have a broken ls.  This can happen
 	# if, for instance, CONFIG_SHELL is bash and it inherits a
 	# broken ls alias from the environment.  This has actually
 	# happened.  Such a system could not be considered "sane".
 	AC_MSG_ERROR([ls -t appears to fail.  Make sure there is not a broken
   alias in your environment])
      fi
      if test "$[2]" = conftest.file || test $am_try -eq 2; then
        break
      fi
      # Just in case.
      sleep 1
      am_has_slept=yes
    done
2c4c4640
    test "$[2]" = conftest.file
    )
 then
    # Ok.
    :
 else
    AC_MSG_ERROR([newly created file is older than distributed files!
 Check your system clock])
 fi
e96b53b6
 AC_MSG_RESULT([yes])
 # If we didn't sleep, we still need to ensure time stamps of config.status and
 # generated files are strictly newer.
 am_sleep_pid=
 if grep 'slept: no' conftest.file >/dev/null 2>&1; then
   ( sleep 1 ) &
   am_sleep_pid=$!
 fi
 AC_CONFIG_COMMANDS_PRE(
   [AC_MSG_CHECKING([that generated files are newer than configure])
    if test -n "$am_sleep_pid"; then
      # Hide warnings about reused PIDs.
      wait $am_sleep_pid 2>/dev/null
    fi
    AC_MSG_RESULT([done])])
 rm -f conftest.file
 ])
2c4c4640
 
6c1e7ec0
 # Copyright (C) 2009-2017 Free Software Foundation, Inc.
2c4c4640
 #
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
 # with or without modifications, as long as this notice is preserved.
 
 # AM_SILENT_RULES([DEFAULT])
 # --------------------------
 # Enable less verbose build rules; with the default set to DEFAULT
e96b53b6
 # ("yes" being less verbose, "no" or empty being verbose).
2c4c4640
 AC_DEFUN([AM_SILENT_RULES],
e96b53b6
 [AC_ARG_ENABLE([silent-rules], [dnl
 AS_HELP_STRING(
   [--enable-silent-rules],
   [less verbose build output (undo: "make V=1")])
 AS_HELP_STRING(
   [--disable-silent-rules],
   [verbose build output (undo: "make V=0")])dnl
 ])
 case $enable_silent_rules in @%:@ (((
   yes) AM_DEFAULT_VERBOSITY=0;;
    no) AM_DEFAULT_VERBOSITY=1;;
     *) AM_DEFAULT_VERBOSITY=m4_if([$1], [yes], [0], [1]);;
2c4c4640
 esac
a2a004df
 dnl
e96b53b6
 dnl A few 'make' implementations (e.g., NonStop OS and NextStep)
a2a004df
 dnl do not support nested variable expansions.
 dnl See automake bug#9928 and bug#10237.
 am_make=${MAKE-make}
 AC_CACHE_CHECK([whether $am_make supports nested variables],
    [am_cv_make_support_nested_variables],
    [if AS_ECHO([['TRUE=$(BAR$(V))
 BAR0=false
 BAR1=true
 V=1
 am__doit:
 	@$(TRUE)
 .PHONY: am__doit']]) | $am_make -f - >/dev/null 2>&1; then
   am_cv_make_support_nested_variables=yes
 else
   am_cv_make_support_nested_variables=no
 fi])
 if test $am_cv_make_support_nested_variables = yes; then
e96b53b6
   dnl Using '$V' instead of '$(V)' breaks IRIX make.
a2a004df
   AM_V='$(V)'
   AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
 else
   AM_V=$AM_DEFAULT_VERBOSITY
   AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY
 fi
 AC_SUBST([AM_V])dnl
 AM_SUBST_NOTMAKE([AM_V])dnl
 AC_SUBST([AM_DEFAULT_V])dnl
 AM_SUBST_NOTMAKE([AM_DEFAULT_V])dnl
2c4c4640
 AC_SUBST([AM_DEFAULT_VERBOSITY])dnl
 AM_BACKSLASH='\'
 AC_SUBST([AM_BACKSLASH])dnl
 _AM_SUBST_NOTMAKE([AM_BACKSLASH])dnl
 ])
 
6c1e7ec0
 # Copyright (C) 2001-2017 Free Software Foundation, Inc.
2c4c4640
 #
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
 # with or without modifications, as long as this notice is preserved.
 
 # AM_PROG_INSTALL_STRIP
 # ---------------------
e96b53b6
 # One issue with vendor 'install' (even GNU) is that you can't
2c4c4640
 # specify the program used to strip binaries.  This is especially
 # annoying in cross-compiling environments, where the build's strip
 # is unlikely to handle the host's binaries.
 # Fortunately install-sh will honor a STRIPPROG variable, so we
e96b53b6
 # always use install-sh in "make install-strip", and initialize
2c4c4640
 # STRIPPROG with the value of the STRIP variable (set by the user).
 AC_DEFUN([AM_PROG_INSTALL_STRIP],
 [AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
e96b53b6
 # Installed binaries are usually stripped using 'strip' when the user
 # run "make install-strip".  However 'strip' might not be the right
2c4c4640
 # tool to use in cross-compilation environments, therefore Automake
e96b53b6
 # will honor the 'STRIP' environment variable to overrule this program.
 dnl Don't test for $cross_compiling = yes, because it might be 'maybe'.
2c4c4640
 if test "$cross_compiling" != no; then
   AC_CHECK_TOOL([STRIP], [strip], :)
 fi
 INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
 AC_SUBST([INSTALL_STRIP_PROGRAM])])
 
6c1e7ec0
 # Copyright (C) 2006-2017 Free Software Foundation, Inc.
2c4c4640
 #
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
 # with or without modifications, as long as this notice is preserved.
 
 # _AM_SUBST_NOTMAKE(VARIABLE)
 # ---------------------------
 # Prevent Automake from outputting VARIABLE = @VARIABLE@ in Makefile.in.
 # This macro is traced by Automake.
 AC_DEFUN([_AM_SUBST_NOTMAKE])
 
 # AM_SUBST_NOTMAKE(VARIABLE)
a2a004df
 # --------------------------
2c4c4640
 # Public sister of _AM_SUBST_NOTMAKE.
 AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE($@)])
 
 # Check how to create a tarball.                            -*- Autoconf -*-
 
6c1e7ec0
 # Copyright (C) 2004-2017 Free Software Foundation, Inc.
2c4c4640
 #
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
 # with or without modifications, as long as this notice is preserved.
 
 # _AM_PROG_TAR(FORMAT)
 # --------------------
 # Check how to create a tarball in format FORMAT.
e96b53b6
 # FORMAT should be one of 'v7', 'ustar', or 'pax'.
2c4c4640
 #
 # Substitute a variable $(am__tar) that is a command
 # writing to stdout a FORMAT-tarball containing the directory
 # $tardir.
 #     tardir=directory && $(am__tar) > result.tar
 #
 # Substitute a variable $(am__untar) that extract such
 # a tarball read from stdin.
 #     $(am__untar) < result.tar
e96b53b6
 #
2c4c4640
 AC_DEFUN([_AM_PROG_TAR],
a2a004df
 [# Always define AMTAR for backward compatibility.  Yes, it's still used
 # in the wild :-(  We should find a proper way to deprecate it ...
 AC_SUBST([AMTAR], ['$${TAR-tar}'])
e96b53b6
 
 # We'll loop over all known methods to create a tar archive until one works.
2c4c4640
 _am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none'
 
e96b53b6
 m4_if([$1], [v7],
   [am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'],
 
   [m4_case([$1],
     [ustar],
      [# The POSIX 1988 'ustar' format is defined with fixed-size fields.
       # There is notably a 21 bits limit for the UID and the GID.  In fact,
       # the 'pax' utility can hang on bigger UID/GID (see automake bug#8343
       # and bug#13588).
       am_max_uid=2097151 # 2^21 - 1
       am_max_gid=$am_max_uid
       # The $UID and $GID variables are not portable, so we need to resort
       # to the POSIX-mandated id(1) utility.  Errors in the 'id' calls
       # below are definitely unexpected, so allow the users to see them
       # (that is, avoid stderr redirection).
       am_uid=`id -u || echo unknown`
       am_gid=`id -g || echo unknown`
       AC_MSG_CHECKING([whether UID '$am_uid' is supported by ustar format])
       if test $am_uid -le $am_max_uid; then
          AC_MSG_RESULT([yes])
       else
          AC_MSG_RESULT([no])
          _am_tools=none
       fi
       AC_MSG_CHECKING([whether GID '$am_gid' is supported by ustar format])
       if test $am_gid -le $am_max_gid; then
          AC_MSG_RESULT([yes])
       else
         AC_MSG_RESULT([no])
         _am_tools=none
       fi],
 
   [pax],
     [],
 
   [m4_fatal([Unknown tar format])])
 
   AC_MSG_CHECKING([how to create a $1 tar archive])
 
   # Go ahead even if we have the value already cached.  We do so because we
   # need to set the values for the 'am__tar' and 'am__untar' variables.
   _am_tools=${am_cv_prog_tar_$1-$_am_tools}
 
   for _am_tool in $_am_tools; do
     case $_am_tool in
     gnutar)
       for _am_tar in tar gnutar gtar; do
         AM_RUN_LOG([$_am_tar --version]) && break
       done
       am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"'
       am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"'
       am__untar="$_am_tar -xf -"
       ;;
     plaintar)
       # Must skip GNU tar: if it does not support --format= it doesn't create
       # ustar tarball either.
       (tar --version) >/dev/null 2>&1 && continue
       am__tar='tar chf - "$$tardir"'
       am__tar_='tar chf - "$tardir"'
       am__untar='tar xf -'
       ;;
     pax)
       am__tar='pax -L -x $1 -w "$$tardir"'
       am__tar_='pax -L -x $1 -w "$tardir"'
       am__untar='pax -r'
       ;;
     cpio)
       am__tar='find "$$tardir" -print | cpio -o -H $1 -L'
       am__tar_='find "$tardir" -print | cpio -o -H $1 -L'
       am__untar='cpio -i -H $1 -d'
       ;;
     none)
       am__tar=false
       am__tar_=false
       am__untar=false
       ;;
     esac
2c4c4640
 
e96b53b6
     # If the value was cached, stop now.  We just wanted to have am__tar
     # and am__untar set.
     test -n "${am_cv_prog_tar_$1}" && break
 
     # tar/untar a dummy directory, and stop if the command works.
     rm -rf conftest.dir
     mkdir conftest.dir
     echo GrepMe > conftest.dir/file
     AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar])
     rm -rf conftest.dir
     if test -s conftest.tar; then
       AM_RUN_LOG([$am__untar <conftest.tar])
       AM_RUN_LOG([cat conftest.dir/file])
       grep GrepMe conftest.dir/file >/dev/null 2>&1 && break
     fi
   done
77b50dbc
   rm -rf conftest.dir
2c4c4640
 
e96b53b6
   AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool])
   AC_MSG_RESULT([$am_cv_prog_tar_$1])])
 
2c4c4640
 AC_SUBST([am__tar])
 AC_SUBST([am__untar])
 ]) # _AM_PROG_TAR
 
 m4_include([m4/check_gnu_make.m4])
c26edb2e
 m4_include([m4/cxx_flag_check.m4])
2c4c4640
 m4_include([m4/libtool.m4])
 m4_include([m4/ltoptions.m4])
 m4_include([m4/ltsugar.m4])
 m4_include([m4/ltversion.m4])
 m4_include([m4/lt~obsolete.m4])