source: squid-ssl/trunk/fuentes/libltdl/aclocal.m4 @ 5495

Last change on this file since 5495 was 5495, checked in by Juanma, 2 years ago

Initial release

File size: 41.3 KB
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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
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23# Copyright (C) 2002-2014 Free Software Foundation, Inc.
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144# Copyright (C) 1999-2014 Free Software Foundation, Inc.
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333# Generate code to set up dependency tracking.              -*- Autoconf -*-
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335# Copyright (C) 1999-2014 Free Software Foundation, Inc.
336#
337# This file is free software; the Free Software Foundation
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503AC_REQUIRE([AC_PROG_AWK])dnl
504AC_REQUIRE([AC_PROG_MAKE_SET])dnl
505AC_REQUIRE([AM_SET_LEADING_DOT])dnl
506_AM_IF_OPTION([tar-ustar], [_AM_PROG_TAR([ustar])],
507              [_AM_IF_OPTION([tar-pax], [_AM_PROG_TAR([pax])],
508                             [_AM_PROG_TAR([v7])])])
509_AM_IF_OPTION([no-dependencies],,
510[AC_PROVIDE_IFELSE([AC_PROG_CC],
511                  [_AM_DEPENDENCIES([CC])],
512                  [m4_define([AC_PROG_CC],
513                             m4_defn([AC_PROG_CC])[_AM_DEPENDENCIES([CC])])])dnl
514AC_PROVIDE_IFELSE([AC_PROG_CXX],
515                  [_AM_DEPENDENCIES([CXX])],
516                  [m4_define([AC_PROG_CXX],
517                             m4_defn([AC_PROG_CXX])[_AM_DEPENDENCIES([CXX])])])dnl
518AC_PROVIDE_IFELSE([AC_PROG_OBJC],
519                  [_AM_DEPENDENCIES([OBJC])],
520                  [m4_define([AC_PROG_OBJC],
521                             m4_defn([AC_PROG_OBJC])[_AM_DEPENDENCIES([OBJC])])])dnl
522AC_PROVIDE_IFELSE([AC_PROG_OBJCXX],
523                  [_AM_DEPENDENCIES([OBJCXX])],
524                  [m4_define([AC_PROG_OBJCXX],
525                             m4_defn([AC_PROG_OBJCXX])[_AM_DEPENDENCIES([OBJCXX])])])dnl
526])
527AC_REQUIRE([AM_SILENT_RULES])dnl
528dnl The testsuite driver may need to know about EXEEXT, so add the
529dnl 'am__EXEEXT' conditional if _AM_COMPILER_EXEEXT was seen.  This
530dnl macro is hooked onto _AC_COMPILER_EXEEXT early, see below.
531AC_CONFIG_COMMANDS_PRE(dnl
532[m4_provide_if([_AM_COMPILER_EXEEXT],
533  [AM_CONDITIONAL([am__EXEEXT], [test -n "$EXEEXT"])])])dnl
534
535# POSIX will say in a future version that running "rm -f" with no argument
536# is OK; and we want to be able to make that assumption in our Makefile
537# recipes.  So use an aggressive probe to check that the usage we want is
538# actually supported "in the wild" to an acceptable degree.
539# See automake bug#10828.
540# To make any issue more visible, cause the running configure to be aborted
541# by default if the 'rm' program in use doesn't match our expectations; the
542# user can still override this though.
543if rm -f && rm -fr && rm -rf; then : OK; else
544  cat >&2 <<'END'
545Oops!
546
547Your 'rm' program seems unable to run without file operands specified
548on the command line, even when the '-f' option is present.  This is contrary
549to the behaviour of most rm programs out there, and not conforming with
550the upcoming POSIX standard: <http://austingroupbugs.net/view.php?id=542>
551
552Please tell bug-automake@gnu.org about your system, including the value
553of your $PATH and any error possibly output before this message.  This
554can help us improve future automake versions.
555
556END
557  if test x"$ACCEPT_INFERIOR_RM_PROGRAM" = x"yes"; then
558    echo 'Configuration will proceed anyway, since you have set the' >&2
559    echo 'ACCEPT_INFERIOR_RM_PROGRAM variable to "yes"' >&2
560    echo >&2
561  else
562    cat >&2 <<'END'
563Aborting the configuration process, to ensure you take notice of the issue.
564
565You can download and install GNU coreutils to get an 'rm' implementation
566that behaves properly: <http://www.gnu.org/software/coreutils/>.
567
568If you want to complete the configuration process using your problematic
569'rm' anyway, export the environment variable ACCEPT_INFERIOR_RM_PROGRAM
570to "yes", and re-run configure.
571
572END
573    AC_MSG_ERROR([Your 'rm' program is bad, sorry.])
574  fi
575fi
576dnl The trailing newline in this macro's definition is deliberate, for
577dnl backward compatibility and to allow trailing 'dnl'-style comments
578dnl after the AM_INIT_AUTOMAKE invocation. See automake bug#16841.
579])
580
581dnl Hook into '_AC_COMPILER_EXEEXT' early to learn its expansion.  Do not
582dnl add the conditional right here, as _AC_COMPILER_EXEEXT may be further
583dnl mangled by Autoconf and run in a shell conditional statement.
584m4_define([_AC_COMPILER_EXEEXT],
585m4_defn([_AC_COMPILER_EXEEXT])[m4_provide([_AM_COMPILER_EXEEXT])])
586
587# When config.status generates a header, we must update the stamp-h file.
588# This file resides in the same directory as the config header
589# that is generated.  The stamp files are numbered to have different names.
590
591# Autoconf calls _AC_AM_CONFIG_HEADER_HOOK (when defined) in the
592# loop where config.status creates the headers, so we can generate
593# our stamp files there.
594AC_DEFUN([_AC_AM_CONFIG_HEADER_HOOK],
595[# Compute $1's index in $config_headers.
596_am_arg=$1
597_am_stamp_count=1
598for _am_header in $config_headers :; do
599  case $_am_header in
600    $_am_arg | $_am_arg:* )
601      break ;;
602    * )
603      _am_stamp_count=`expr $_am_stamp_count + 1` ;;
604  esac
605done
606echo "timestamp for $_am_arg" >`AS_DIRNAME(["$_am_arg"])`/stamp-h[]$_am_stamp_count])
607
608# Copyright (C) 2001-2014 Free Software Foundation, Inc.
609#
610# This file is free software; the Free Software Foundation
611# gives unlimited permission to copy and/or distribute it,
612# with or without modifications, as long as this notice is preserved.
613
614# AM_PROG_INSTALL_SH
615# ------------------
616# Define $install_sh.
617AC_DEFUN([AM_PROG_INSTALL_SH],
618[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
619if test x"${install_sh+set}" != xset; then
620  case $am_aux_dir in
621  *\ * | *\     *)
622    install_sh="\${SHELL} '$am_aux_dir/install-sh'" ;;
623  *)
624    install_sh="\${SHELL} $am_aux_dir/install-sh"
625  esac
626fi
627AC_SUBST([install_sh])])
628
629# Copyright (C) 2003-2014 Free Software Foundation, Inc.
630#
631# This file is free software; the Free Software Foundation
632# gives unlimited permission to copy and/or distribute it,
633# with or without modifications, as long as this notice is preserved.
634
635# Check whether the underlying file-system supports filenames
636# with a leading dot.  For instance MS-DOS doesn't.
637AC_DEFUN([AM_SET_LEADING_DOT],
638[rm -rf .tst 2>/dev/null
639mkdir .tst 2>/dev/null
640if test -d .tst; then
641  am__leading_dot=.
642else
643  am__leading_dot=_
644fi
645rmdir .tst 2>/dev/null
646AC_SUBST([am__leading_dot])])
647
648# Check to see how 'make' treats includes.                  -*- Autoconf -*-
649
650# Copyright (C) 2001-2014 Free Software Foundation, Inc.
651#
652# This file is free software; the Free Software Foundation
653# gives unlimited permission to copy and/or distribute it,
654# with or without modifications, as long as this notice is preserved.
655
656# AM_MAKE_INCLUDE()
657# -----------------
658# Check to see how make treats includes.
659AC_DEFUN([AM_MAKE_INCLUDE],
660[am_make=${MAKE-make}
661cat > confinc << 'END'
662am__doit:
663        @echo this is the am__doit target
664.PHONY: am__doit
665END
666# If we don't find an include directive, just comment out the code.
667AC_MSG_CHECKING([for style of include used by $am_make])
668am__include="#"
669am__quote=
670_am_result=none
671# First try GNU make style include.
672echo "include confinc" > confmf
673# Ignore all kinds of additional output from 'make'.
674case `$am_make -s -f confmf 2> /dev/null` in #(
675*the\ am__doit\ target*)
676  am__include=include
677  am__quote=
678  _am_result=GNU
679  ;;
680esac
681# Now try BSD make style include.
682if test "$am__include" = "#"; then
683   echo '.include "confinc"' > confmf
684   case `$am_make -s -f confmf 2> /dev/null` in #(
685   *the\ am__doit\ target*)
686     am__include=.include
687     am__quote="\""
688     _am_result=BSD
689     ;;
690   esac
691fi
692AC_SUBST([am__include])
693AC_SUBST([am__quote])
694AC_MSG_RESULT([$_am_result])
695rm -f confinc confmf
696])
697
698# Fake the existence of programs that GNU maintainers use.  -*- Autoconf -*-
699
700# Copyright (C) 1997-2014 Free Software Foundation, Inc.
701#
702# This file is free software; the Free Software Foundation
703# gives unlimited permission to copy and/or distribute it,
704# with or without modifications, as long as this notice is preserved.
705
706# AM_MISSING_PROG(NAME, PROGRAM)
707# ------------------------------
708AC_DEFUN([AM_MISSING_PROG],
709[AC_REQUIRE([AM_MISSING_HAS_RUN])
710$1=${$1-"${am_missing_run}$2"}
711AC_SUBST($1)])
712
713# AM_MISSING_HAS_RUN
714# ------------------
715# Define MISSING if not defined so far and test if it is modern enough.
716# If it is, set am_missing_run to use it, otherwise, to nothing.
717AC_DEFUN([AM_MISSING_HAS_RUN],
718[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
719AC_REQUIRE_AUX_FILE([missing])dnl
720if test x"${MISSING+set}" != xset; then
721  case $am_aux_dir in
722  *\ * | *\     *)
723    MISSING="\${SHELL} \"$am_aux_dir/missing\"" ;;
724  *)
725    MISSING="\${SHELL} $am_aux_dir/missing" ;;
726  esac
727fi
728# Use eval to expand $SHELL
729if eval "$MISSING --is-lightweight"; then
730  am_missing_run="$MISSING "
731else
732  am_missing_run=
733  AC_MSG_WARN(['missing' script is too old or missing])
734fi
735])
736
737# Helper functions for option handling.                     -*- Autoconf -*-
738
739# Copyright (C) 2001-2014 Free Software Foundation, 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# _AM_MANGLE_OPTION(NAME)
746# -----------------------
747AC_DEFUN([_AM_MANGLE_OPTION],
748[[_AM_OPTION_]m4_bpatsubst($1, [[^a-zA-Z0-9_]], [_])])
749
750# _AM_SET_OPTION(NAME)
751# --------------------
752# Set option NAME.  Presently that only means defining a flag for this option.
753AC_DEFUN([_AM_SET_OPTION],
754[m4_define(_AM_MANGLE_OPTION([$1]), [1])])
755
756# _AM_SET_OPTIONS(OPTIONS)
757# ------------------------
758# OPTIONS is a space-separated list of Automake options.
759AC_DEFUN([_AM_SET_OPTIONS],
760[m4_foreach_w([_AM_Option], [$1], [_AM_SET_OPTION(_AM_Option)])])
761
762# _AM_IF_OPTION(OPTION, IF-SET, [IF-NOT-SET])
763# -------------------------------------------
764# Execute IF-SET if OPTION is set, IF-NOT-SET otherwise.
765AC_DEFUN([_AM_IF_OPTION],
766[m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])])
767
768# Copyright (C) 1999-2014 Free Software Foundation, Inc.
769#
770# This file is free software; the Free Software Foundation
771# gives unlimited permission to copy and/or distribute it,
772# with or without modifications, as long as this notice is preserved.
773
774# _AM_PROG_CC_C_O
775# ---------------
776# Like AC_PROG_CC_C_O, but changed for automake.  We rewrite AC_PROG_CC
777# to automatically call this.
778AC_DEFUN([_AM_PROG_CC_C_O],
779[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
780AC_REQUIRE_AUX_FILE([compile])dnl
781AC_LANG_PUSH([C])dnl
782AC_CACHE_CHECK(
783  [whether $CC understands -c and -o together],
784  [am_cv_prog_cc_c_o],
785  [AC_LANG_CONFTEST([AC_LANG_PROGRAM([])])
786  # Make sure it works both with $CC and with simple cc.
787  # Following AC_PROG_CC_C_O, we do the test twice because some
788  # compilers refuse to overwrite an existing .o file with -o,
789  # though they will create one.
790  am_cv_prog_cc_c_o=yes
791  for am_i in 1 2; do
792    if AM_RUN_LOG([$CC -c conftest.$ac_ext -o conftest2.$ac_objext]) \
793         && test -f conftest2.$ac_objext; then
794      : OK
795    else
796      am_cv_prog_cc_c_o=no
797      break
798    fi
799  done
800  rm -f core conftest*
801  unset am_i])
802if test "$am_cv_prog_cc_c_o" != yes; then
803   # Losing compiler, so override with the script.
804   # FIXME: It is wrong to rewrite CC.
805   # But if we don't then we get into trouble of one sort or another.
806   # A longer-term fix would be to have automake use am__CC in this case,
807   # and then we could set am__CC="\$(top_srcdir)/compile \$(CC)"
808   CC="$am_aux_dir/compile $CC"
809fi
810AC_LANG_POP([C])])
811
812# For backward compatibility.
813AC_DEFUN_ONCE([AM_PROG_CC_C_O], [AC_REQUIRE([AC_PROG_CC])])
814
815# Copyright (C) 2001-2014 Free Software Foundation, Inc.
816#
817# This file is free software; the Free Software Foundation
818# gives unlimited permission to copy and/or distribute it,
819# with or without modifications, as long as this notice is preserved.
820
821# AM_RUN_LOG(COMMAND)
822# -------------------
823# Run COMMAND, save the exit status in ac_status, and log it.
824# (This has been adapted from Autoconf's _AC_RUN_LOG macro.)
825AC_DEFUN([AM_RUN_LOG],
826[{ echo "$as_me:$LINENO: $1" >&AS_MESSAGE_LOG_FD
827   ($1) >&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD
828   ac_status=$?
829   echo "$as_me:$LINENO: \$? = $ac_status" >&AS_MESSAGE_LOG_FD
830   (exit $ac_status); }])
831
832# Check to make sure that the build environment is sane.    -*- Autoconf -*-
833
834# Copyright (C) 1996-2014 Free Software Foundation, Inc.
835#
836# This file is free software; the Free Software Foundation
837# gives unlimited permission to copy and/or distribute it,
838# with or without modifications, as long as this notice is preserved.
839
840# AM_SANITY_CHECK
841# ---------------
842AC_DEFUN([AM_SANITY_CHECK],
843[AC_MSG_CHECKING([whether build environment is sane])
844# Reject unsafe characters in $srcdir or the absolute working directory
845# name.  Accept space and tab only in the latter.
846am_lf='
847'
848case `pwd` in
849  *[[\\\"\#\$\&\'\`$am_lf]]*)
850    AC_MSG_ERROR([unsafe absolute working directory name]);;
851esac
852case $srcdir in
853  *[[\\\"\#\$\&\'\`$am_lf\ \    ]]*)
854    AC_MSG_ERROR([unsafe srcdir value: '$srcdir']);;
855esac
856
857# Do 'set' in a subshell so we don't clobber the current shell's
858# arguments.  Must try -L first in case configure is actually a
859# symlink; some systems play weird games with the mod time of symlinks
860# (eg FreeBSD returns the mod time of the symlink's containing
861# directory).
862if (
863   am_has_slept=no
864   for am_try in 1 2; do
865     echo "timestamp, slept: $am_has_slept" > conftest.file
866     set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null`
867     if test "$[*]" = "X"; then
868        # -L didn't work.
869        set X `ls -t "$srcdir/configure" conftest.file`
870     fi
871     if test "$[*]" != "X $srcdir/configure conftest.file" \
872        && test "$[*]" != "X conftest.file $srcdir/configure"; then
873
874        # If neither matched, then we have a broken ls.  This can happen
875        # if, for instance, CONFIG_SHELL is bash and it inherits a
876        # broken ls alias from the environment.  This has actually
877        # happened.  Such a system could not be considered "sane".
878        AC_MSG_ERROR([ls -t appears to fail.  Make sure there is not a broken
879  alias in your environment])
880     fi
881     if test "$[2]" = conftest.file || test $am_try -eq 2; then
882       break
883     fi
884     # Just in case.
885     sleep 1
886     am_has_slept=yes
887   done
888   test "$[2]" = conftest.file
889   )
890then
891   # Ok.
892   :
893else
894   AC_MSG_ERROR([newly created file is older than distributed files!
895Check your system clock])
896fi
897AC_MSG_RESULT([yes])
898# If we didn't sleep, we still need to ensure time stamps of config.status and
899# generated files are strictly newer.
900am_sleep_pid=
901if grep 'slept: no' conftest.file >/dev/null 2>&1; then
902  ( sleep 1 ) &
903  am_sleep_pid=$!
904fi
905AC_CONFIG_COMMANDS_PRE(
906  [AC_MSG_CHECKING([that generated files are newer than configure])
907   if test -n "$am_sleep_pid"; then
908     # Hide warnings about reused PIDs.
909     wait $am_sleep_pid 2>/dev/null
910   fi
911   AC_MSG_RESULT([done])])
912rm -f conftest.file
913])
914
915# Copyright (C) 2009-2014 Free Software Foundation, Inc.
916#
917# This file is free software; the Free Software Foundation
918# gives unlimited permission to copy and/or distribute it,
919# with or without modifications, as long as this notice is preserved.
920
921# AM_SILENT_RULES([DEFAULT])
922# --------------------------
923# Enable less verbose build rules; with the default set to DEFAULT
924# ("yes" being less verbose, "no" or empty being verbose).
925AC_DEFUN([AM_SILENT_RULES],
926[AC_ARG_ENABLE([silent-rules], [dnl
927AS_HELP_STRING(
928  [--enable-silent-rules],
929  [less verbose build output (undo: "make V=1")])
930AS_HELP_STRING(
931  [--disable-silent-rules],
932  [verbose build output (undo: "make V=0")])dnl
933])
934case $enable_silent_rules in @%:@ (((
935  yes) AM_DEFAULT_VERBOSITY=0;;
936   no) AM_DEFAULT_VERBOSITY=1;;
937    *) AM_DEFAULT_VERBOSITY=m4_if([$1], [yes], [0], [1]);;
938esac
939dnl
940dnl A few 'make' implementations (e.g., NonStop OS and NextStep)
941dnl do not support nested variable expansions.
942dnl See automake bug#9928 and bug#10237.
943am_make=${MAKE-make}
944AC_CACHE_CHECK([whether $am_make supports nested variables],
945   [am_cv_make_support_nested_variables],
946   [if AS_ECHO([['TRUE=$(BAR$(V))
947BAR0=false
948BAR1=true
949V=1
950am__doit:
951        @$(TRUE)
952.PHONY: am__doit']]) | $am_make -f - >/dev/null 2>&1; then
953  am_cv_make_support_nested_variables=yes
954else
955  am_cv_make_support_nested_variables=no
956fi])
957if test $am_cv_make_support_nested_variables = yes; then
958  dnl Using '$V' instead of '$(V)' breaks IRIX make.
959  AM_V='$(V)'
960  AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
961else
962  AM_V=$AM_DEFAULT_VERBOSITY
963  AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY
964fi
965AC_SUBST([AM_V])dnl
966AM_SUBST_NOTMAKE([AM_V])dnl
967AC_SUBST([AM_DEFAULT_V])dnl
968AM_SUBST_NOTMAKE([AM_DEFAULT_V])dnl
969AC_SUBST([AM_DEFAULT_VERBOSITY])dnl
970AM_BACKSLASH='\'
971AC_SUBST([AM_BACKSLASH])dnl
972_AM_SUBST_NOTMAKE([AM_BACKSLASH])dnl
973])
974
975# Copyright (C) 2001-2014 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_PROG_INSTALL_STRIP
982# ---------------------
983# One issue with vendor 'install' (even GNU) is that you can't
984# specify the program used to strip binaries.  This is especially
985# annoying in cross-compiling environments, where the build's strip
986# is unlikely to handle the host's binaries.
987# Fortunately install-sh will honor a STRIPPROG variable, so we
988# always use install-sh in "make install-strip", and initialize
989# STRIPPROG with the value of the STRIP variable (set by the user).
990AC_DEFUN([AM_PROG_INSTALL_STRIP],
991[AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
992# Installed binaries are usually stripped using 'strip' when the user
993# run "make install-strip".  However 'strip' might not be the right
994# tool to use in cross-compilation environments, therefore Automake
995# will honor the 'STRIP' environment variable to overrule this program.
996dnl Don't test for $cross_compiling = yes, because it might be 'maybe'.
997if test "$cross_compiling" != no; then
998  AC_CHECK_TOOL([STRIP], [strip], :)
999fi
1000INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
1001AC_SUBST([INSTALL_STRIP_PROGRAM])])
1002
1003# Copyright (C) 2006-2014 Free Software Foundation, Inc.
1004#
1005# This file is free software; the Free Software Foundation
1006# gives unlimited permission to copy and/or distribute it,
1007# with or without modifications, as long as this notice is preserved.
1008
1009# _AM_SUBST_NOTMAKE(VARIABLE)
1010# ---------------------------
1011# Prevent Automake from outputting VARIABLE = @VARIABLE@ in Makefile.in.
1012# This macro is traced by Automake.
1013AC_DEFUN([_AM_SUBST_NOTMAKE])
1014
1015# AM_SUBST_NOTMAKE(VARIABLE)
1016# --------------------------
1017# Public sister of _AM_SUBST_NOTMAKE.
1018AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE($@)])
1019
1020# Check how to create a tarball.                            -*- Autoconf -*-
1021
1022# Copyright (C) 2004-2014 Free Software Foundation, Inc.
1023#
1024# This file is free software; the Free Software Foundation
1025# gives unlimited permission to copy and/or distribute it,
1026# with or without modifications, as long as this notice is preserved.
1027
1028# _AM_PROG_TAR(FORMAT)
1029# --------------------
1030# Check how to create a tarball in format FORMAT.
1031# FORMAT should be one of 'v7', 'ustar', or 'pax'.
1032#
1033# Substitute a variable $(am__tar) that is a command
1034# writing to stdout a FORMAT-tarball containing the directory
1035# $tardir.
1036#     tardir=directory && $(am__tar) > result.tar
1037#
1038# Substitute a variable $(am__untar) that extract such
1039# a tarball read from stdin.
1040#     $(am__untar) < result.tar
1041#
1042AC_DEFUN([_AM_PROG_TAR],
1043[# Always define AMTAR for backward compatibility.  Yes, it's still used
1044# in the wild :-(  We should find a proper way to deprecate it ...
1045AC_SUBST([AMTAR], ['$${TAR-tar}'])
1046
1047# We'll loop over all known methods to create a tar archive until one works.
1048_am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none'
1049
1050m4_if([$1], [v7],
1051  [am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'],
1052
1053  [m4_case([$1],
1054    [ustar],
1055     [# The POSIX 1988 'ustar' format is defined with fixed-size fields.
1056      # There is notably a 21 bits limit for the UID and the GID.  In fact,
1057      # the 'pax' utility can hang on bigger UID/GID (see automake bug#8343
1058      # and bug#13588).
1059      am_max_uid=2097151 # 2^21 - 1
1060      am_max_gid=$am_max_uid
1061      # The $UID and $GID variables are not portable, so we need to resort
1062      # to the POSIX-mandated id(1) utility.  Errors in the 'id' calls
1063      # below are definitely unexpected, so allow the users to see them
1064      # (that is, avoid stderr redirection).
1065      am_uid=`id -u || echo unknown`
1066      am_gid=`id -g || echo unknown`
1067      AC_MSG_CHECKING([whether UID '$am_uid' is supported by ustar format])
1068      if test $am_uid -le $am_max_uid; then
1069         AC_MSG_RESULT([yes])
1070      else
1071         AC_MSG_RESULT([no])
1072         _am_tools=none
1073      fi
1074      AC_MSG_CHECKING([whether GID '$am_gid' is supported by ustar format])
1075      if test $am_gid -le $am_max_gid; then
1076         AC_MSG_RESULT([yes])
1077      else
1078        AC_MSG_RESULT([no])
1079        _am_tools=none
1080      fi],
1081
1082  [pax],
1083    [],
1084
1085  [m4_fatal([Unknown tar format])])
1086
1087  AC_MSG_CHECKING([how to create a $1 tar archive])
1088
1089  # Go ahead even if we have the value already cached.  We do so because we
1090  # need to set the values for the 'am__tar' and 'am__untar' variables.
1091  _am_tools=${am_cv_prog_tar_$1-$_am_tools}
1092
1093  for _am_tool in $_am_tools; do
1094    case $_am_tool in
1095    gnutar)
1096      for _am_tar in tar gnutar gtar; do
1097        AM_RUN_LOG([$_am_tar --version]) && break
1098      done
1099      am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"'
1100      am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"'
1101      am__untar="$_am_tar -xf -"
1102      ;;
1103    plaintar)
1104      # Must skip GNU tar: if it does not support --format= it doesn't create
1105      # ustar tarball either.
1106      (tar --version) >/dev/null 2>&1 && continue
1107      am__tar='tar chf - "$$tardir"'
1108      am__tar_='tar chf - "$tardir"'
1109      am__untar='tar xf -'
1110      ;;
1111    pax)
1112      am__tar='pax -L -x $1 -w "$$tardir"'
1113      am__tar_='pax -L -x $1 -w "$tardir"'
1114      am__untar='pax -r'
1115      ;;
1116    cpio)
1117      am__tar='find "$$tardir" -print | cpio -o -H $1 -L'
1118      am__tar_='find "$tardir" -print | cpio -o -H $1 -L'
1119      am__untar='cpio -i -H $1 -d'
1120      ;;
1121    none)
1122      am__tar=false
1123      am__tar_=false
1124      am__untar=false
1125      ;;
1126    esac
1127
1128    # If the value was cached, stop now.  We just wanted to have am__tar
1129    # and am__untar set.
1130    test -n "${am_cv_prog_tar_$1}" && break
1131
1132    # tar/untar a dummy directory, and stop if the command works.
1133    rm -rf conftest.dir
1134    mkdir conftest.dir
1135    echo GrepMe > conftest.dir/file
1136    AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar])
1137    rm -rf conftest.dir
1138    if test -s conftest.tar; then
1139      AM_RUN_LOG([$am__untar <conftest.tar])
1140      AM_RUN_LOG([cat conftest.dir/file])
1141      grep GrepMe conftest.dir/file >/dev/null 2>&1 && break
1142    fi
1143  done
1144  rm -rf conftest.dir
1145
1146  AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool])
1147  AC_MSG_RESULT([$am_cv_prog_tar_$1])])
1148
1149AC_SUBST([am__tar])
1150AC_SUBST([am__untar])
1151]) # _AM_PROG_TAR
1152
1153m4_include([m4/libtool.m4])
1154m4_include([m4/ltargz.m4])
1155m4_include([m4/ltdl.m4])
1156m4_include([m4/ltoptions.m4])
1157m4_include([m4/ltsugar.m4])
1158m4_include([m4/ltversion.m4])
1159m4_include([m4/lt~obsolete.m4])
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