1# generated automatically by aclocal 1.16.1 -*- Autoconf -*-
2
3# Copyright (C) 1996-2018 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
14m4_ifndef([AC_CONFIG_MACRO_DIRS], [m4_defun([_AM_CONFIG_MACRO_DIRS], [])m4_defun([AC_CONFIG_MACRO_DIRS], [_AM_CONFIG_MACRO_DIRS($@)])])
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23# Copyright (C) 2002-2018 Free Software Foundation, Inc.
24#
25# This file is free software; the Free Software Foundation
26# gives unlimited permission to copy and/or distribute it,
27# with or without modifications, as long as this notice is preserved.
28
29# AM_AUTOMAKE_VERSION(VERSION)
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59# AM_AUX_DIR_EXPAND                                         -*- Autoconf -*-
60
61# Copyright (C) 2001-2018 Free Software Foundation, Inc.
62#
63# This file is free software; the Free Software Foundation
64# gives unlimited permission to copy and/or distribute it,
65# with or without modifications, as long as this notice is preserved.
66
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111# AM_CONDITIONAL                                            -*- Autoconf -*-
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113# Copyright (C) 1997-2018 Free Software Foundation, Inc.
114#
115# This file is free software; the Free Software Foundation
116# gives unlimited permission to copy and/or distribute it,
117# with or without modifications, as long as this notice is preserved.
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144# Copyright (C) 1999-2018 Free Software Foundation, Inc.
145#
146# This file is free software; the Free Software Foundation
147# gives unlimited permission to copy and/or distribute it,
148# with or without modifications, as long as this notice is preserved.
149
150
151# There are a few dirty hacks below to avoid letting 'AC_PROG_CC' be
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158# _AM_DEPENDENCIES(NAME)
159# ----------------------
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300
301# AM_SET_DEPDIR
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310
311# AM_DEP_TRACK
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315AS_HELP_STRING(
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332
333# Generate code to set up dependency tracking.              -*- Autoconf -*-
334
335# Copyright (C) 1999-2018 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_OUTPUT_DEPENDENCY_COMMANDS
342# ------------------------------
343AC_DEFUN([_AM_OUTPUT_DEPENDENCY_COMMANDS],
344[{
345  # Older Autoconf quotes --file arguments for eval, but not when files
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348  # TODO: see whether this extra hack can be removed once we start
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386
387# AM_OUTPUT_DEPENDENCY_COMMANDS
388# -----------------------------
389# This macro should only be invoked once -- use via AC_REQUIRE.
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398
399# Do all the work for Automake.                             -*- Autoconf -*-
400
401# Copyright (C) 1996-2018 Free Software Foundation, Inc.
402#
403# This file is free software; the Free Software Foundation
404# gives unlimited permission to copy and/or distribute it,
405# with or without modifications, as long as this notice is preserved.
406
407# This macro actually does too much.  Some checks are only needed if
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410dnl Redefine AC_PROG_CC to automatically invoke _AM_PROG_CC_C_O.
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416# AM_INIT_AUTOMAKE(PACKAGE, VERSION, [NO-DEFINE])
417# AM_INIT_AUTOMAKE([OPTIONS])
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471_AM_IF_OPTION([no-define],,
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480AM_MISSING_PROG([AUTOMAKE], [automake-${am__api_version}])
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485AC_REQUIRE([AC_PROG_MKDIR_P])dnl
486# For better backward compatibility.  To be removed once Automake 1.9.x
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489# <https://lists.gnu.org/archive/html/automake/2012-07/msg00014.html>
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518dnl The testsuite driver may need to know about EXEEXT, so add the
519dnl 'am__EXEEXT' conditional if _AM_COMPILER_EXEEXT was seen.  This
520dnl macro is hooked onto _AC_COMPILER_EXEEXT early, see below.
521AC_CONFIG_COMMANDS_PRE(dnl
522[m4_provide_if([_AM_COMPILER_EXEEXT],
523  [AM_CONDITIONAL([am__EXEEXT], [test -n "$EXEEXT"])])])dnl
524
525# POSIX will say in a future version that running "rm -f" with no argument
526# is OK; and we want to be able to make that assumption in our Makefile
527# recipes.  So use an aggressive probe to check that the usage we want is
528# actually supported "in the wild" to an acceptable degree.
529# See automake bug#10828.
530# To make any issue more visible, cause the running configure to be aborted
531# by default if the 'rm' program in use doesn't match our expectations; the
532# user can still override this though.
533if rm -f && rm -fr && rm -rf; then : OK; else
534  cat >&2 <<'END'
535Oops!
536
537Your 'rm' program seems unable to run without file operands specified
538on the command line, even when the '-f' option is present.  This is contrary
539to the behaviour of most rm programs out there, and not conforming with
540the upcoming POSIX standard: <http://austingroupbugs.net/view.php?id=542>
541
542Please tell bug-automake@gnu.org about your system, including the value
543of your $PATH and any error possibly output before this message.  This
544can help us improve future automake versions.
545
546END
547  if test x"$ACCEPT_INFERIOR_RM_PROGRAM" = x"yes"; then
548    echo 'Configuration will proceed anyway, since you have set the' >&2
549    echo 'ACCEPT_INFERIOR_RM_PROGRAM variable to "yes"' >&2
550    echo >&2
551  else
552    cat >&2 <<'END'
553Aborting the configuration process, to ensure you take notice of the issue.
554
555You can download and install GNU coreutils to get an 'rm' implementation
556that behaves properly: <https://www.gnu.org/software/coreutils/>.
557
558If you want to complete the configuration process using your problematic
559'rm' anyway, export the environment variable ACCEPT_INFERIOR_RM_PROGRAM
560to "yes", and re-run configure.
561
562END
563    AC_MSG_ERROR([Your 'rm' program is bad, sorry.])
564  fi
565fi
566dnl The trailing newline in this macro's definition is deliberate, for
567dnl backward compatibility and to allow trailing 'dnl'-style comments
568dnl after the AM_INIT_AUTOMAKE invocation. See automake bug#16841.
569])
570
571dnl Hook into '_AC_COMPILER_EXEEXT' early to learn its expansion.  Do not
572dnl add the conditional right here, as _AC_COMPILER_EXEEXT may be further
573dnl mangled by Autoconf and run in a shell conditional statement.
574m4_define([_AC_COMPILER_EXEEXT],
575m4_defn([_AC_COMPILER_EXEEXT])[m4_provide([_AM_COMPILER_EXEEXT])])
576
577# When config.status generates a header, we must update the stamp-h file.
578# This file resides in the same directory as the config header
579# that is generated.  The stamp files are numbered to have different names.
580
581# Autoconf calls _AC_AM_CONFIG_HEADER_HOOK (when defined) in the
582# loop where config.status creates the headers, so we can generate
583# our stamp files there.
584AC_DEFUN([_AC_AM_CONFIG_HEADER_HOOK],
585[# Compute $1's index in $config_headers.
586_am_arg=$1
587_am_stamp_count=1
588for _am_header in $config_headers :; do
589  case $_am_header in
590    $_am_arg | $_am_arg:* )
591      break ;;
592    * )
593      _am_stamp_count=`expr $_am_stamp_count + 1` ;;
594  esac
595done
596echo "timestamp for $_am_arg" >`AS_DIRNAME(["$_am_arg"])`/stamp-h[]$_am_stamp_count])
597
598# Copyright (C) 2001-2018 Free Software Foundation, Inc.
599#
600# This file is free software; the Free Software Foundation
601# gives unlimited permission to copy and/or distribute it,
602# with or without modifications, as long as this notice is preserved.
603
604# AM_PROG_INSTALL_SH
605# ------------------
606# Define $install_sh.
607AC_DEFUN([AM_PROG_INSTALL_SH],
608[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
609if test x"${install_sh+set}" != xset; then
610  case $am_aux_dir in
611  *\ * | *\	*)
612    install_sh="\${SHELL} '$am_aux_dir/install-sh'" ;;
613  *)
614    install_sh="\${SHELL} $am_aux_dir/install-sh"
615  esac
616fi
617AC_SUBST([install_sh])])
618
619# Copyright (C) 2003-2018 Free Software Foundation, Inc.
620#
621# This file is free software; the Free Software Foundation
622# gives unlimited permission to copy and/or distribute it,
623# with or without modifications, as long as this notice is preserved.
624
625# Check whether the underlying file-system supports filenames
626# with a leading dot.  For instance MS-DOS doesn't.
627AC_DEFUN([AM_SET_LEADING_DOT],
628[rm -rf .tst 2>/dev/null
629mkdir .tst 2>/dev/null
630if test -d .tst; then
631  am__leading_dot=.
632else
633  am__leading_dot=_
634fi
635rmdir .tst 2>/dev/null
636AC_SUBST([am__leading_dot])])
637
638# Add --enable-maintainer-mode option to configure.         -*- Autoconf -*-
639# From Jim Meyering
640
641# Copyright (C) 1996-2018 Free Software Foundation, Inc.
642#
643# This file is free software; the Free Software Foundation
644# gives unlimited permission to copy and/or distribute it,
645# with or without modifications, as long as this notice is preserved.
646
647# AM_MAINTAINER_MODE([DEFAULT-MODE])
648# ----------------------------------
649# Control maintainer-specific portions of Makefiles.
650# Default is to disable them, unless 'enable' is passed literally.
651# For symmetry, 'disable' may be passed as well.  Anyway, the user
652# can override the default with the --enable/--disable switch.
653AC_DEFUN([AM_MAINTAINER_MODE],
654[m4_case(m4_default([$1], [disable]),
655       [enable], [m4_define([am_maintainer_other], [disable])],
656       [disable], [m4_define([am_maintainer_other], [enable])],
657       [m4_define([am_maintainer_other], [enable])
658        m4_warn([syntax], [unexpected argument to AM@&t@_MAINTAINER_MODE: $1])])
659AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
660  dnl maintainer-mode's default is 'disable' unless 'enable' is passed
661  AC_ARG_ENABLE([maintainer-mode],
662    [AS_HELP_STRING([--]am_maintainer_other[-maintainer-mode],
663      am_maintainer_other[ make rules and dependencies not useful
664      (and sometimes confusing) to the casual installer])],
665    [USE_MAINTAINER_MODE=$enableval],
666    [USE_MAINTAINER_MODE=]m4_if(am_maintainer_other, [enable], [no], [yes]))
667  AC_MSG_RESULT([$USE_MAINTAINER_MODE])
668  AM_CONDITIONAL([MAINTAINER_MODE], [test $USE_MAINTAINER_MODE = yes])
669  MAINT=$MAINTAINER_MODE_TRUE
670  AC_SUBST([MAINT])dnl
671]
672)
673
674# Check to see how 'make' treats includes.	            -*- Autoconf -*-
675
676# Copyright (C) 2001-2018 Free Software Foundation, Inc.
677#
678# This file is free software; the Free Software Foundation
679# gives unlimited permission to copy and/or distribute it,
680# with or without modifications, as long as this notice is preserved.
681
682# AM_MAKE_INCLUDE()
683# -----------------
684# Check whether make has an 'include' directive that can support all
685# the idioms we need for our automatic dependency tracking code.
686AC_DEFUN([AM_MAKE_INCLUDE],
687[AC_MSG_CHECKING([whether ${MAKE-make} supports the include directive])
688cat > confinc.mk << 'END'
689am__doit:
690	@echo this is the am__doit target >confinc.out
691.PHONY: am__doit
692END
693am__include="#"
694am__quote=
695# BSD make does it like this.
696echo '.include "confinc.mk" # ignored' > confmf.BSD
697# Other make implementations (GNU, Solaris 10, AIX) do it like this.
698echo 'include confinc.mk # ignored' > confmf.GNU
699_am_result=no
700for s in GNU BSD; do
701  AM_RUN_LOG([${MAKE-make} -f confmf.$s && cat confinc.out])
702  AS_CASE([$?:`cat confinc.out 2>/dev/null`],
703      ['0:this is the am__doit target'],
704      [AS_CASE([$s],
705          [BSD], [am__include='.include' am__quote='"'],
706          [am__include='include' am__quote=''])])
707  if test "$am__include" != "#"; then
708    _am_result="yes ($s style)"
709    break
710  fi
711done
712rm -f confinc.* confmf.*
713AC_MSG_RESULT([${_am_result}])
714AC_SUBST([am__include])])
715AC_SUBST([am__quote])])
716
717# Fake the existence of programs that GNU maintainers use.  -*- Autoconf -*-
718
719# Copyright (C) 1997-2018 Free Software Foundation, Inc.
720#
721# This file is free software; the Free Software Foundation
722# gives unlimited permission to copy and/or distribute it,
723# with or without modifications, as long as this notice is preserved.
724
725# AM_MISSING_PROG(NAME, PROGRAM)
726# ------------------------------
727AC_DEFUN([AM_MISSING_PROG],
728[AC_REQUIRE([AM_MISSING_HAS_RUN])
729$1=${$1-"${am_missing_run}$2"}
730AC_SUBST($1)])
731
732# AM_MISSING_HAS_RUN
733# ------------------
734# Define MISSING if not defined so far and test if it is modern enough.
735# If it is, set am_missing_run to use it, otherwise, to nothing.
736AC_DEFUN([AM_MISSING_HAS_RUN],
737[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
738AC_REQUIRE_AUX_FILE([missing])dnl
739if test x"${MISSING+set}" != xset; then
740  case $am_aux_dir in
741  *\ * | *\	*)
742    MISSING="\${SHELL} \"$am_aux_dir/missing\"" ;;
743  *)
744    MISSING="\${SHELL} $am_aux_dir/missing" ;;
745  esac
746fi
747# Use eval to expand $SHELL
748if eval "$MISSING --is-lightweight"; then
749  am_missing_run="$MISSING "
750else
751  am_missing_run=
752  AC_MSG_WARN(['missing' script is too old or missing])
753fi
754])
755
756# Helper functions for option handling.                     -*- Autoconf -*-
757
758# Copyright (C) 2001-2018 Free Software Foundation, Inc.
759#
760# This file is free software; the Free Software Foundation
761# gives unlimited permission to copy and/or distribute it,
762# with or without modifications, as long as this notice is preserved.
763
764# _AM_MANGLE_OPTION(NAME)
765# -----------------------
766AC_DEFUN([_AM_MANGLE_OPTION],
767[[_AM_OPTION_]m4_bpatsubst($1, [[^a-zA-Z0-9_]], [_])])
768
769# _AM_SET_OPTION(NAME)
770# --------------------
771# Set option NAME.  Presently that only means defining a flag for this option.
772AC_DEFUN([_AM_SET_OPTION],
773[m4_define(_AM_MANGLE_OPTION([$1]), [1])])
774
775# _AM_SET_OPTIONS(OPTIONS)
776# ------------------------
777# OPTIONS is a space-separated list of Automake options.
778AC_DEFUN([_AM_SET_OPTIONS],
779[m4_foreach_w([_AM_Option], [$1], [_AM_SET_OPTION(_AM_Option)])])
780
781# _AM_IF_OPTION(OPTION, IF-SET, [IF-NOT-SET])
782# -------------------------------------------
783# Execute IF-SET if OPTION is set, IF-NOT-SET otherwise.
784AC_DEFUN([_AM_IF_OPTION],
785[m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])])
786
787# Copyright (C) 2001-2018 Free Software Foundation, Inc.
788#
789# This file is free software; the Free Software Foundation
790# gives unlimited permission to copy and/or distribute it,
791# with or without modifications, as long as this notice is preserved.
792
793# AM_RUN_LOG(COMMAND)
794# -------------------
795# Run COMMAND, save the exit status in ac_status, and log it.
796# (This has been adapted from Autoconf's _AC_RUN_LOG macro.)
797AC_DEFUN([AM_RUN_LOG],
798[{ echo "$as_me:$LINENO: $1" >&AS_MESSAGE_LOG_FD
799   ($1) >&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD
800   ac_status=$?
801   echo "$as_me:$LINENO: \$? = $ac_status" >&AS_MESSAGE_LOG_FD
802   (exit $ac_status); }])
803
804# Check to make sure that the build environment is sane.    -*- Autoconf -*-
805
806# Copyright (C) 1996-2018 Free Software Foundation, Inc.
807#
808# This file is free software; the Free Software Foundation
809# gives unlimited permission to copy and/or distribute it,
810# with or without modifications, as long as this notice is preserved.
811
812# AM_SANITY_CHECK
813# ---------------
814AC_DEFUN([AM_SANITY_CHECK],
815[AC_MSG_CHECKING([whether build environment is sane])
816# Reject unsafe characters in $srcdir or the absolute working directory
817# name.  Accept space and tab only in the latter.
818am_lf='
819'
820case `pwd` in
821  *[[\\\"\#\$\&\'\`$am_lf]]*)
822    AC_MSG_ERROR([unsafe absolute working directory name]);;
823esac
824case $srcdir in
825  *[[\\\"\#\$\&\'\`$am_lf\ \	]]*)
826    AC_MSG_ERROR([unsafe srcdir value: '$srcdir']);;
827esac
828
829# Do 'set' in a subshell so we don't clobber the current shell's
830# arguments.  Must try -L first in case configure is actually a
831# symlink; some systems play weird games with the mod time of symlinks
832# (eg FreeBSD returns the mod time of the symlink's containing
833# directory).
834if (
835   am_has_slept=no
836   for am_try in 1 2; do
837     echo "timestamp, slept: $am_has_slept" > conftest.file
838     set X `ls -Lt "$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     if test "$[*]" != "X $srcdir/configure conftest.file" \
844	&& test "$[*]" != "X conftest.file $srcdir/configure"; then
845
846	# If neither matched, then we have a broken ls.  This can happen
847	# if, for instance, CONFIG_SHELL is bash and it inherits a
848	# broken ls alias from the environment.  This has actually
849	# happened.  Such a system could not be considered "sane".
850	AC_MSG_ERROR([ls -t appears to fail.  Make sure there is not a broken
851  alias in your environment])
852     fi
853     if test "$[2]" = conftest.file || test $am_try -eq 2; then
854       break
855     fi
856     # Just in case.
857     sleep 1
858     am_has_slept=yes
859   done
860   test "$[2]" = conftest.file
861   )
862then
863   # Ok.
864   :
865else
866   AC_MSG_ERROR([newly created file is older than distributed files!
867Check your system clock])
868fi
869AC_MSG_RESULT([yes])
870# If we didn't sleep, we still need to ensure time stamps of config.status and
871# generated files are strictly newer.
872am_sleep_pid=
873if grep 'slept: no' conftest.file >/dev/null 2>&1; then
874  ( sleep 1 ) &
875  am_sleep_pid=$!
876fi
877AC_CONFIG_COMMANDS_PRE(
878  [AC_MSG_CHECKING([that generated files are newer than configure])
879   if test -n "$am_sleep_pid"; then
880     # Hide warnings about reused PIDs.
881     wait $am_sleep_pid 2>/dev/null
882   fi
883   AC_MSG_RESULT([done])])
884rm -f conftest.file
885])
886
887# Copyright (C) 2009-2018 Free Software Foundation, Inc.
888#
889# This file is free software; the Free Software Foundation
890# gives unlimited permission to copy and/or distribute it,
891# with or without modifications, as long as this notice is preserved.
892
893# AM_SILENT_RULES([DEFAULT])
894# --------------------------
895# Enable less verbose build rules; with the default set to DEFAULT
896# ("yes" being less verbose, "no" or empty being verbose).
897AC_DEFUN([AM_SILENT_RULES],
898[AC_ARG_ENABLE([silent-rules], [dnl
899AS_HELP_STRING(
900  [--enable-silent-rules],
901  [less verbose build output (undo: "make V=1")])
902AS_HELP_STRING(
903  [--disable-silent-rules],
904  [verbose build output (undo: "make V=0")])dnl
905])
906case $enable_silent_rules in @%:@ (((
907  yes) AM_DEFAULT_VERBOSITY=0;;
908   no) AM_DEFAULT_VERBOSITY=1;;
909    *) AM_DEFAULT_VERBOSITY=m4_if([$1], [yes], [0], [1]);;
910esac
911dnl
912dnl A few 'make' implementations (e.g., NonStop OS and NextStep)
913dnl do not support nested variable expansions.
914dnl See automake bug#9928 and bug#10237.
915am_make=${MAKE-make}
916AC_CACHE_CHECK([whether $am_make supports nested variables],
917   [am_cv_make_support_nested_variables],
918   [if AS_ECHO([['TRUE=$(BAR$(V))
919BAR0=false
920BAR1=true
921V=1
922am__doit:
923	@$(TRUE)
924.PHONY: am__doit']]) | $am_make -f - >/dev/null 2>&1; then
925  am_cv_make_support_nested_variables=yes
926else
927  am_cv_make_support_nested_variables=no
928fi])
929if test $am_cv_make_support_nested_variables = yes; then
930  dnl Using '$V' instead of '$(V)' breaks IRIX make.
931  AM_V='$(V)'
932  AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
933else
934  AM_V=$AM_DEFAULT_VERBOSITY
935  AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY
936fi
937AC_SUBST([AM_V])dnl
938AM_SUBST_NOTMAKE([AM_V])dnl
939AC_SUBST([AM_DEFAULT_V])dnl
940AM_SUBST_NOTMAKE([AM_DEFAULT_V])dnl
941AC_SUBST([AM_DEFAULT_VERBOSITY])dnl
942AM_BACKSLASH='\'
943AC_SUBST([AM_BACKSLASH])dnl
944_AM_SUBST_NOTMAKE([AM_BACKSLASH])dnl
945])
946
947# Copyright (C) 2001-2018 Free Software Foundation, Inc.
948#
949# This file is free software; the Free Software Foundation
950# gives unlimited permission to copy and/or distribute it,
951# with or without modifications, as long as this notice is preserved.
952
953# AM_PROG_INSTALL_STRIP
954# ---------------------
955# One issue with vendor 'install' (even GNU) is that you can't
956# specify the program used to strip binaries.  This is especially
957# annoying in cross-compiling environments, where the build's strip
958# is unlikely to handle the host's binaries.
959# Fortunately install-sh will honor a STRIPPROG variable, so we
960# always use install-sh in "make install-strip", and initialize
961# STRIPPROG with the value of the STRIP variable (set by the user).
962AC_DEFUN([AM_PROG_INSTALL_STRIP],
963[AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
964# Installed binaries are usually stripped using 'strip' when the user
965# run "make install-strip".  However 'strip' might not be the right
966# tool to use in cross-compilation environments, therefore Automake
967# will honor the 'STRIP' environment variable to overrule this program.
968dnl Don't test for $cross_compiling = yes, because it might be 'maybe'.
969if test "$cross_compiling" != no; then
970  AC_CHECK_TOOL([STRIP], [strip], :)
971fi
972INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
973AC_SUBST([INSTALL_STRIP_PROGRAM])])
974
975# Copyright (C) 2006-2018 Free Software Foundation, Inc.
976#
977# This file is free software; the Free Software Foundation
978# gives unlimited permission to copy and/or distribute it,
979# with or without modifications, as long as this notice is preserved.
980
981# _AM_SUBST_NOTMAKE(VARIABLE)
982# ---------------------------
983# Prevent Automake from outputting VARIABLE = @VARIABLE@ in Makefile.in.
984# This macro is traced by Automake.
985AC_DEFUN([_AM_SUBST_NOTMAKE])
986
987# AM_SUBST_NOTMAKE(VARIABLE)
988# --------------------------
989# Public sister of _AM_SUBST_NOTMAKE.
990AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE($@)])
991
992# Check how to create a tarball.                            -*- Autoconf -*-
993
994# Copyright (C) 2004-2018 Free Software Foundation, Inc.
995#
996# This file is free software; the Free Software Foundation
997# gives unlimited permission to copy and/or distribute it,
998# with or without modifications, as long as this notice is preserved.
999
1000# _AM_PROG_TAR(FORMAT)
1001# --------------------
1002# Check how to create a tarball in format FORMAT.
1003# FORMAT should be one of 'v7', 'ustar', or 'pax'.
1004#
1005# Substitute a variable $(am__tar) that is a command
1006# writing to stdout a FORMAT-tarball containing the directory
1007# $tardir.
1008#     tardir=directory && $(am__tar) > result.tar
1009#
1010# Substitute a variable $(am__untar) that extract such
1011# a tarball read from stdin.
1012#     $(am__untar) < result.tar
1013#
1014AC_DEFUN([_AM_PROG_TAR],
1015[# Always define AMTAR for backward compatibility.  Yes, it's still used
1016# in the wild :-(  We should find a proper way to deprecate it ...
1017AC_SUBST([AMTAR], ['$${TAR-tar}'])
1018
1019# We'll loop over all known methods to create a tar archive until one works.
1020_am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none'
1021
1022m4_if([$1], [v7],
1023  [am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'],
1024
1025  [m4_case([$1],
1026    [ustar],
1027     [# The POSIX 1988 'ustar' format is defined with fixed-size fields.
1028      # There is notably a 21 bits limit for the UID and the GID.  In fact,
1029      # the 'pax' utility can hang on bigger UID/GID (see automake bug#8343
1030      # and bug#13588).
1031      am_max_uid=2097151 # 2^21 - 1
1032      am_max_gid=$am_max_uid
1033      # The $UID and $GID variables are not portable, so we need to resort
1034      # to the POSIX-mandated id(1) utility.  Errors in the 'id' calls
1035      # below are definitely unexpected, so allow the users to see them
1036      # (that is, avoid stderr redirection).
1037      am_uid=`id -u || echo unknown`
1038      am_gid=`id -g || echo unknown`
1039      AC_MSG_CHECKING([whether UID '$am_uid' is supported by ustar format])
1040      if test $am_uid -le $am_max_uid; then
1041         AC_MSG_RESULT([yes])
1042      else
1043         AC_MSG_RESULT([no])
1044         _am_tools=none
1045      fi
1046      AC_MSG_CHECKING([whether GID '$am_gid' is supported by ustar format])
1047      if test $am_gid -le $am_max_gid; then
1048         AC_MSG_RESULT([yes])
1049      else
1050        AC_MSG_RESULT([no])
1051        _am_tools=none
1052      fi],
1053
1054  [pax],
1055    [],
1056
1057  [m4_fatal([Unknown tar format])])
1058
1059  AC_MSG_CHECKING([how to create a $1 tar archive])
1060
1061  # Go ahead even if we have the value already cached.  We do so because we
1062  # need to set the values for the 'am__tar' and 'am__untar' variables.
1063  _am_tools=${am_cv_prog_tar_$1-$_am_tools}
1064
1065  for _am_tool in $_am_tools; do
1066    case $_am_tool in
1067    gnutar)
1068      for _am_tar in tar gnutar gtar; do
1069        AM_RUN_LOG([$_am_tar --version]) && break
1070      done
1071      am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"'
1072      am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"'
1073      am__untar="$_am_tar -xf -"
1074      ;;
1075    plaintar)
1076      # Must skip GNU tar: if it does not support --format= it doesn't create
1077      # ustar tarball either.
1078      (tar --version) >/dev/null 2>&1 && continue
1079      am__tar='tar chf - "$$tardir"'
1080      am__tar_='tar chf - "$tardir"'
1081      am__untar='tar xf -'
1082      ;;
1083    pax)
1084      am__tar='pax -L -x $1 -w "$$tardir"'
1085      am__tar_='pax -L -x $1 -w "$tardir"'
1086      am__untar='pax -r'
1087      ;;
1088    cpio)
1089      am__tar='find "$$tardir" -print | cpio -o -H $1 -L'
1090      am__tar_='find "$tardir" -print | cpio -o -H $1 -L'
1091      am__untar='cpio -i -H $1 -d'
1092      ;;
1093    none)
1094      am__tar=false
1095      am__tar_=false
1096      am__untar=false
1097      ;;
1098    esac
1099
1100    # If the value was cached, stop now.  We just wanted to have am__tar
1101    # and am__untar set.
1102    test -n "${am_cv_prog_tar_$1}" && break
1103
1104    # tar/untar a dummy directory, and stop if the command works.
1105    rm -rf conftest.dir
1106    mkdir conftest.dir
1107    echo GrepMe > conftest.dir/file
1108    AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar])
1109    rm -rf conftest.dir
1110    if test -s conftest.tar; then
1111      AM_RUN_LOG([$am__untar <conftest.tar])
1112      AM_RUN_LOG([cat conftest.dir/file])
1113      grep GrepMe conftest.dir/file >/dev/null 2>&1 && break
1114    fi
1115  done
1116  rm -rf conftest.dir
1117
1118  AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool])
1119  AC_MSG_RESULT([$am_cv_prog_tar_$1])])
1120
1121AC_SUBST([am__tar])
1122AC_SUBST([am__untar])
1123]) # _AM_PROG_TAR
1124
1125