1: # generated automatically by aclocal 1.14.1 -*- Autoconf -*-
2:
3: # Copyright (C) 1996-2013 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.
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23: # Copyright (C) 2002-2013 Free Software Foundation, Inc.
24: #
25: # This file is free software; the Free Software Foundation
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27: # with or without modifications, as long as this notice is preserved.
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511: [AC_PROVIDE_IFELSE([AC_PROG_CC],
512: [_AM_DEPENDENCIES([CC])],
513: [m4_define([AC_PROG_CC],
514: m4_defn([AC_PROG_CC])[_AM_DEPENDENCIES([CC])])])dnl
515: AC_PROVIDE_IFELSE([AC_PROG_CXX],
516: [_AM_DEPENDENCIES([CXX])],
517: [m4_define([AC_PROG_CXX],
518: m4_defn([AC_PROG_CXX])[_AM_DEPENDENCIES([CXX])])])dnl
519: AC_PROVIDE_IFELSE([AC_PROG_OBJC],
520: [_AM_DEPENDENCIES([OBJC])],
521: [m4_define([AC_PROG_OBJC],
522: m4_defn([AC_PROG_OBJC])[_AM_DEPENDENCIES([OBJC])])])dnl
523: AC_PROVIDE_IFELSE([AC_PROG_OBJCXX],
524: [_AM_DEPENDENCIES([OBJCXX])],
525: [m4_define([AC_PROG_OBJCXX],
526: m4_defn([AC_PROG_OBJCXX])[_AM_DEPENDENCIES([OBJCXX])])])dnl
527: ])
528: AC_REQUIRE([AM_SILENT_RULES])dnl
529: dnl The testsuite driver may need to know about EXEEXT, so add the
530: dnl 'am__EXEEXT' conditional if _AM_COMPILER_EXEEXT was seen. This
531: dnl macro is hooked onto _AC_COMPILER_EXEEXT early, see below.
532: AC_CONFIG_COMMANDS_PRE(dnl
533: [m4_provide_if([_AM_COMPILER_EXEEXT],
534: [AM_CONDITIONAL([am__EXEEXT], [test -n "$EXEEXT"])])])dnl
535:
536: # POSIX will say in a future version that running "rm -f" with no argument
537: # is OK; and we want to be able to make that assumption in our Makefile
538: # recipes. So use an aggressive probe to check that the usage we want is
539: # actually supported "in the wild" to an acceptable degree.
540: # See automake bug#10828.
541: # To make any issue more visible, cause the running configure to be aborted
542: # by default if the 'rm' program in use doesn't match our expectations; the
543: # user can still override this though.
544: if rm -f && rm -fr && rm -rf; then : OK; else
545: cat >&2 <<'END'
546: Oops!
547:
548: Your 'rm' program seems unable to run without file operands specified
549: on the command line, even when the '-f' option is present. This is contrary
550: to the behaviour of most rm programs out there, and not conforming with
551: the upcoming POSIX standard: <http://austingroupbugs.net/view.php?id=542>
552:
553: Please tell bug-automake@gnu.org about your system, including the value
554: of your $PATH and any error possibly output before this message. This
555: can help us improve future automake versions.
556:
557: END
558: if test x"$ACCEPT_INFERIOR_RM_PROGRAM" = x"yes"; then
559: echo 'Configuration will proceed anyway, since you have set the' >&2
560: echo 'ACCEPT_INFERIOR_RM_PROGRAM variable to "yes"' >&2
561: echo >&2
562: else
563: cat >&2 <<'END'
564: Aborting the configuration process, to ensure you take notice of the issue.
565:
566: You can download and install GNU coreutils to get an 'rm' implementation
567: that behaves properly: <http://www.gnu.org/software/coreutils/>.
568:
569: If you want to complete the configuration process using your problematic
570: 'rm' anyway, export the environment variable ACCEPT_INFERIOR_RM_PROGRAM
571: to "yes", and re-run configure.
572:
573: END
574: AC_MSG_ERROR([Your 'rm' program is bad, sorry.])
575: fi
576: fi])
577:
578: dnl Hook into '_AC_COMPILER_EXEEXT' early to learn its expansion. Do not
579: dnl add the conditional right here, as _AC_COMPILER_EXEEXT may be further
580: dnl mangled by Autoconf and run in a shell conditional statement.
581: m4_define([_AC_COMPILER_EXEEXT],
582: m4_defn([_AC_COMPILER_EXEEXT])[m4_provide([_AM_COMPILER_EXEEXT])])
583:
584: # When config.status generates a header, we must update the stamp-h file.
585: # This file resides in the same directory as the config header
586: # that is generated. The stamp files are numbered to have different names.
587:
588: # Autoconf calls _AC_AM_CONFIG_HEADER_HOOK (when defined) in the
589: # loop where config.status creates the headers, so we can generate
590: # our stamp files there.
591: AC_DEFUN([_AC_AM_CONFIG_HEADER_HOOK],
592: [# Compute $1's index in $config_headers.
593: _am_arg=$1
594: _am_stamp_count=1
595: for _am_header in $config_headers :; do
596: case $_am_header in
597: $_am_arg | $_am_arg:* )
598: break ;;
599: * )
600: _am_stamp_count=`expr $_am_stamp_count + 1` ;;
601: esac
602: done
603: echo "timestamp for $_am_arg" >`AS_DIRNAME(["$_am_arg"])`/stamp-h[]$_am_stamp_count])
604:
605: # Copyright (C) 2001-2013 Free Software Foundation, Inc.
606: #
607: # This file is free software; the Free Software Foundation
608: # gives unlimited permission to copy and/or distribute it,
609: # with or without modifications, as long as this notice is preserved.
610:
611: # AM_PROG_INSTALL_SH
612: # ------------------
613: # Define $install_sh.
614: AC_DEFUN([AM_PROG_INSTALL_SH],
615: [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
616: if test x"${install_sh}" != xset; then
617: case $am_aux_dir in
618: *\ * | *\ *)
619: install_sh="\${SHELL} '$am_aux_dir/install-sh'" ;;
620: *)
621: install_sh="\${SHELL} $am_aux_dir/install-sh"
622: esac
623: fi
624: AC_SUBST([install_sh])])
625:
626: # Copyright (C) 2003-2013 Free Software Foundation, Inc.
627: #
628: # This file is free software; the Free Software Foundation
629: # gives unlimited permission to copy and/or distribute it,
630: # with or without modifications, as long as this notice is preserved.
631:
632: # Check whether the underlying file-system supports filenames
633: # with a leading dot. For instance MS-DOS doesn't.
634: AC_DEFUN([AM_SET_LEADING_DOT],
635: [rm -rf .tst 2>/dev/null
636: mkdir .tst 2>/dev/null
637: if test -d .tst; then
638: am__leading_dot=.
639: else
640: am__leading_dot=_
641: fi
642: rmdir .tst 2>/dev/null
643: AC_SUBST([am__leading_dot])])
644:
645: # Check to see how 'make' treats includes. -*- Autoconf -*-
646:
647: # Copyright (C) 2001-2013 Free Software Foundation, Inc.
648: #
649: # This file is free software; the Free Software Foundation
650: # gives unlimited permission to copy and/or distribute it,
651: # with or without modifications, as long as this notice is preserved.
652:
653: # AM_MAKE_INCLUDE()
654: # -----------------
655: # Check to see how make treats includes.
656: AC_DEFUN([AM_MAKE_INCLUDE],
657: [am_make=${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) 1997-2013 Free Software Foundation, Inc.
698: #
699: # This file is free software; the Free Software Foundation
700: # gives unlimited permission to copy and/or distribute it,
701: # with or without modifications, as long as this notice is preserved.
702:
703: # AM_MISSING_PROG(NAME, PROGRAM)
704: # ------------------------------
705: AC_DEFUN([AM_MISSING_PROG],
706: [AC_REQUIRE([AM_MISSING_HAS_RUN])
707: $1=${$1-"${am_missing_run}$2"}
708: AC_SUBST($1)])
709:
710: # AM_MISSING_HAS_RUN
711: # ------------------
712: # Define MISSING if not defined so far and test if it is modern enough.
713: # If it is, set am_missing_run to use it, otherwise, to nothing.
714: AC_DEFUN([AM_MISSING_HAS_RUN],
715: [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
716: AC_REQUIRE_AUX_FILE([missing])dnl
717: if test x"${MISSING+set}" != xset; then
718: case $am_aux_dir in
719: *\ * | *\ *)
720: MISSING="\${SHELL} \"$am_aux_dir/missing\"" ;;
721: *)
722: MISSING="\${SHELL} $am_aux_dir/missing" ;;
723: esac
724: fi
725: # Use eval to expand $SHELL
726: if eval "$MISSING --is-lightweight"; then
727: am_missing_run="$MISSING "
728: else
729: am_missing_run=
730: AC_MSG_WARN(['missing' script is too old or missing])
731: fi
732: ])
733:
734: # Helper functions for option handling. -*- Autoconf -*-
735:
736: # Copyright (C) 2001-2013 Free Software Foundation, Inc.
737: #
738: # This file is free software; the Free Software Foundation
739: # gives unlimited permission to copy and/or distribute it,
740: # with or without modifications, as long as this notice is preserved.
741:
742: # _AM_MANGLE_OPTION(NAME)
743: # -----------------------
744: AC_DEFUN([_AM_MANGLE_OPTION],
745: [[_AM_OPTION_]m4_bpatsubst($1, [[^a-zA-Z0-9_]], [_])])
746:
747: # _AM_SET_OPTION(NAME)
748: # --------------------
749: # Set option NAME. Presently that only means defining a flag for this option.
750: AC_DEFUN([_AM_SET_OPTION],
751: [m4_define(_AM_MANGLE_OPTION([$1]), [1])])
752:
753: # _AM_SET_OPTIONS(OPTIONS)
754: # ------------------------
755: # OPTIONS is a space-separated list of Automake options.
756: AC_DEFUN([_AM_SET_OPTIONS],
757: [m4_foreach_w([_AM_Option], [$1], [_AM_SET_OPTION(_AM_Option)])])
758:
759: # _AM_IF_OPTION(OPTION, IF-SET, [IF-NOT-SET])
760: # -------------------------------------------
761: # Execute IF-SET if OPTION is set, IF-NOT-SET otherwise.
762: AC_DEFUN([_AM_IF_OPTION],
763: [m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])])
764:
765: # Copyright (C) 1999-2013 Free Software Foundation, Inc.
766: #
767: # This file is free software; the Free Software Foundation
768: # gives unlimited permission to copy and/or distribute it,
769: # with or without modifications, as long as this notice is preserved.
770:
771: # _AM_PROG_CC_C_O
772: # ---------------
773: # Like AC_PROG_CC_C_O, but changed for automake. We rewrite AC_PROG_CC
774: # to automatically call this.
775: AC_DEFUN([_AM_PROG_CC_C_O],
776: [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
777: AC_REQUIRE_AUX_FILE([compile])dnl
778: AC_LANG_PUSH([C])dnl
779: AC_CACHE_CHECK(
780: [whether $CC understands -c and -o together],
781: [am_cv_prog_cc_c_o],
782: [AC_LANG_CONFTEST([AC_LANG_PROGRAM([])])
783: # Make sure it works both with $CC and with simple cc.
784: # Following AC_PROG_CC_C_O, we do the test twice because some
785: # compilers refuse to overwrite an existing .o file with -o,
786: # though they will create one.
787: am_cv_prog_cc_c_o=yes
788: for am_i in 1 2; do
789: if AM_RUN_LOG([$CC -c conftest.$ac_ext -o conftest2.$ac_objext]) \
790: && test -f conftest2.$ac_objext; then
791: : OK
792: else
793: am_cv_prog_cc_c_o=no
794: break
795: fi
796: done
797: rm -f core conftest*
798: unset am_i])
799: if test "$am_cv_prog_cc_c_o" != yes; then
800: # Losing compiler, so override with the script.
801: # FIXME: It is wrong to rewrite CC.
802: # But if we don't then we get into trouble of one sort or another.
803: # A longer-term fix would be to have automake use am__CC in this case,
804: # and then we could set am__CC="\$(top_srcdir)/compile \$(CC)"
805: CC="$am_aux_dir/compile $CC"
806: fi
807: AC_LANG_POP([C])])
808:
809: # For backward compatibility.
810: AC_DEFUN_ONCE([AM_PROG_CC_C_O], [AC_REQUIRE([AC_PROG_CC])])
811:
812: # Copyright (C) 2001-2013 Free Software Foundation, Inc.
813: #
814: # This file is free software; the Free Software Foundation
815: # gives unlimited permission to copy and/or distribute it,
816: # with or without modifications, as long as this notice is preserved.
817:
818: # AM_RUN_LOG(COMMAND)
819: # -------------------
820: # Run COMMAND, save the exit status in ac_status, and log it.
821: # (This has been adapted from Autoconf's _AC_RUN_LOG macro.)
822: AC_DEFUN([AM_RUN_LOG],
823: [{ echo "$as_me:$LINENO: $1" >&AS_MESSAGE_LOG_FD
824: ($1) >&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD
825: ac_status=$?
826: echo "$as_me:$LINENO: \$? = $ac_status" >&AS_MESSAGE_LOG_FD
827: (exit $ac_status); }])
828:
829: # Check to make sure that the build environment is sane. -*- Autoconf -*-
830:
831: # Copyright (C) 1996-2013 Free Software Foundation, Inc.
832: #
833: # This file is free software; the Free Software Foundation
834: # gives unlimited permission to copy and/or distribute it,
835: # with or without modifications, as long as this notice is preserved.
836:
837: # AM_SANITY_CHECK
838: # ---------------
839: AC_DEFUN([AM_SANITY_CHECK],
840: [AC_MSG_CHECKING([whether build environment is sane])
841: # Reject unsafe characters in $srcdir or the absolute working directory
842: # name. Accept space and tab only in the latter.
843: am_lf='
844: '
845: case `pwd` in
846: *[[\\\"\#\$\&\'\`$am_lf]]*)
847: AC_MSG_ERROR([unsafe absolute working directory name]);;
848: esac
849: case $srcdir in
850: *[[\\\"\#\$\&\'\`$am_lf\ \ ]]*)
851: AC_MSG_ERROR([unsafe srcdir value: '$srcdir']);;
852: esac
853:
854: # Do 'set' in a subshell so we don't clobber the current shell's
855: # arguments. Must try -L first in case configure is actually a
856: # symlink; some systems play weird games with the mod time of symlinks
857: # (eg FreeBSD returns the mod time of the symlink's containing
858: # directory).
859: if (
860: am_has_slept=no
861: for am_try in 1 2; do
862: echo "timestamp, slept: $am_has_slept" > conftest.file
863: set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null`
864: if test "$[*]" = "X"; then
865: # -L didn't work.
866: set X `ls -t "$srcdir/configure" conftest.file`
867: fi
868: if test "$[*]" != "X $srcdir/configure conftest.file" \
869: && test "$[*]" != "X conftest.file $srcdir/configure"; then
870:
871: # If neither matched, then we have a broken ls. This can happen
872: # if, for instance, CONFIG_SHELL is bash and it inherits a
873: # broken ls alias from the environment. This has actually
874: # happened. Such a system could not be considered "sane".
875: AC_MSG_ERROR([ls -t appears to fail. Make sure there is not a broken
876: alias in your environment])
877: fi
878: if test "$[2]" = conftest.file || test $am_try -eq 2; then
879: break
880: fi
881: # Just in case.
882: sleep 1
883: am_has_slept=yes
884: done
885: test "$[2]" = conftest.file
886: )
887: then
888: # Ok.
889: :
890: else
891: AC_MSG_ERROR([newly created file is older than distributed files!
892: Check your system clock])
893: fi
894: AC_MSG_RESULT([yes])
895: # If we didn't sleep, we still need to ensure time stamps of config.status and
896: # generated files are strictly newer.
897: am_sleep_pid=
898: if grep 'slept: no' conftest.file >/dev/null 2>&1; then
899: ( sleep 1 ) &
900: am_sleep_pid=$!
901: fi
902: AC_CONFIG_COMMANDS_PRE(
903: [AC_MSG_CHECKING([that generated files are newer than configure])
904: if test -n "$am_sleep_pid"; then
905: # Hide warnings about reused PIDs.
906: wait $am_sleep_pid 2>/dev/null
907: fi
908: AC_MSG_RESULT([done])])
909: rm -f conftest.file
910: ])
911:
912: # Copyright (C) 2009-2013 Free Software Foundation, Inc.
913: #
914: # This file is free software; the Free Software Foundation
915: # gives unlimited permission to copy and/or distribute it,
916: # with or without modifications, as long as this notice is preserved.
917:
918: # AM_SILENT_RULES([DEFAULT])
919: # --------------------------
920: # Enable less verbose build rules; with the default set to DEFAULT
921: # ("yes" being less verbose, "no" or empty being verbose).
922: AC_DEFUN([AM_SILENT_RULES],
923: [AC_ARG_ENABLE([silent-rules], [dnl
924: AS_HELP_STRING(
925: [--enable-silent-rules],
926: [less verbose build output (undo: "make V=1")])
927: AS_HELP_STRING(
928: [--disable-silent-rules],
929: [verbose build output (undo: "make V=0")])dnl
930: ])
931: case $enable_silent_rules in @%:@ (((
932: yes) AM_DEFAULT_VERBOSITY=0;;
933: no) AM_DEFAULT_VERBOSITY=1;;
934: *) AM_DEFAULT_VERBOSITY=m4_if([$1], [yes], [0], [1]);;
935: esac
936: dnl
937: dnl A few 'make' implementations (e.g., NonStop OS and NextStep)
938: dnl do not support nested variable expansions.
939: dnl See automake bug#9928 and bug#10237.
940: am_make=${MAKE-make}
941: AC_CACHE_CHECK([whether $am_make supports nested variables],
942: [am_cv_make_support_nested_variables],
943: [if AS_ECHO([['TRUE=$(BAR$(V))
944: BAR0=false
945: BAR1=true
946: V=1
947: am__doit:
948: @$(TRUE)
949: .PHONY: am__doit']]) | $am_make -f - >/dev/null 2>&1; then
950: am_cv_make_support_nested_variables=yes
951: else
952: am_cv_make_support_nested_variables=no
953: fi])
954: if test $am_cv_make_support_nested_variables = yes; then
955: dnl Using '$V' instead of '$(V)' breaks IRIX make.
956: AM_V='$(V)'
957: AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
958: else
959: AM_V=$AM_DEFAULT_VERBOSITY
960: AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY
961: fi
962: AC_SUBST([AM_V])dnl
963: AM_SUBST_NOTMAKE([AM_V])dnl
964: AC_SUBST([AM_DEFAULT_V])dnl
965: AM_SUBST_NOTMAKE([AM_DEFAULT_V])dnl
966: AC_SUBST([AM_DEFAULT_VERBOSITY])dnl
967: AM_BACKSLASH='\'
968: AC_SUBST([AM_BACKSLASH])dnl
969: _AM_SUBST_NOTMAKE([AM_BACKSLASH])dnl
970: ])
971:
972: # Copyright (C) 2001-2013 Free Software Foundation, Inc.
973: #
974: # This file is free software; the Free Software Foundation
975: # gives unlimited permission to copy and/or distribute it,
976: # with or without modifications, as long as this notice is preserved.
977:
978: # AM_PROG_INSTALL_STRIP
979: # ---------------------
980: # One issue with vendor 'install' (even GNU) is that you can't
981: # specify the program used to strip binaries. This is especially
982: # annoying in cross-compiling environments, where the build's strip
983: # is unlikely to handle the host's binaries.
984: # Fortunately install-sh will honor a STRIPPROG variable, so we
985: # always use install-sh in "make install-strip", and initialize
986: # STRIPPROG with the value of the STRIP variable (set by the user).
987: AC_DEFUN([AM_PROG_INSTALL_STRIP],
988: [AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
989: # Installed binaries are usually stripped using 'strip' when the user
990: # run "make install-strip". However 'strip' might not be the right
991: # tool to use in cross-compilation environments, therefore Automake
992: # will honor the 'STRIP' environment variable to overrule this program.
993: dnl Don't test for $cross_compiling = yes, because it might be 'maybe'.
994: if test "$cross_compiling" != no; then
995: AC_CHECK_TOOL([STRIP], [strip], :)
996: fi
997: INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
998: AC_SUBST([INSTALL_STRIP_PROGRAM])])
999:
1000: # Copyright (C) 2006-2013 Free Software Foundation, Inc.
1001: #
1002: # This file is free software; the Free Software Foundation
1003: # gives unlimited permission to copy and/or distribute it,
1004: # with or without modifications, as long as this notice is preserved.
1005:
1006: # _AM_SUBST_NOTMAKE(VARIABLE)
1007: # ---------------------------
1008: # Prevent Automake from outputting VARIABLE = @VARIABLE@ in Makefile.in.
1009: # This macro is traced by Automake.
1010: AC_DEFUN([_AM_SUBST_NOTMAKE])
1011:
1012: # AM_SUBST_NOTMAKE(VARIABLE)
1013: # --------------------------
1014: # Public sister of _AM_SUBST_NOTMAKE.
1015: AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE($@)])
1016:
1017: # Check how to create a tarball. -*- Autoconf -*-
1018:
1019: # Copyright (C) 2004-2013 Free Software Foundation, Inc.
1020: #
1021: # This file is free software; the Free Software Foundation
1022: # gives unlimited permission to copy and/or distribute it,
1023: # with or without modifications, as long as this notice is preserved.
1024:
1025: # _AM_PROG_TAR(FORMAT)
1026: # --------------------
1027: # Check how to create a tarball in format FORMAT.
1028: # FORMAT should be one of 'v7', 'ustar', or 'pax'.
1029: #
1030: # Substitute a variable $(am__tar) that is a command
1031: # writing to stdout a FORMAT-tarball containing the directory
1032: # $tardir.
1033: # tardir=directory && $(am__tar) > result.tar
1034: #
1035: # Substitute a variable $(am__untar) that extract such
1036: # a tarball read from stdin.
1037: # $(am__untar) < result.tar
1038: #
1039: AC_DEFUN([_AM_PROG_TAR],
1040: [# Always define AMTAR for backward compatibility. Yes, it's still used
1041: # in the wild :-( We should find a proper way to deprecate it ...
1042: AC_SUBST([AMTAR], ['$${TAR-tar}'])
1043:
1044: # We'll loop over all known methods to create a tar archive until one works.
1045: _am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none'
1046:
1047: m4_if([$1], [v7],
1048: [am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'],
1049:
1050: [m4_case([$1],
1051: [ustar],
1052: [# The POSIX 1988 'ustar' format is defined with fixed-size fields.
1053: # There is notably a 21 bits limit for the UID and the GID. In fact,
1054: # the 'pax' utility can hang on bigger UID/GID (see automake bug#8343
1055: # and bug#13588).
1056: am_max_uid=2097151 # 2^21 - 1
1057: am_max_gid=$am_max_uid
1058: # The $UID and $GID variables are not portable, so we need to resort
1059: # to the POSIX-mandated id(1) utility. Errors in the 'id' calls
1060: # below are definitely unexpected, so allow the users to see them
1061: # (that is, avoid stderr redirection).
1062: am_uid=`id -u || echo unknown`
1063: am_gid=`id -g || echo unknown`
1064: AC_MSG_CHECKING([whether UID '$am_uid' is supported by ustar format])
1065: if test $am_uid -le $am_max_uid; then
1066: AC_MSG_RESULT([yes])
1067: else
1068: AC_MSG_RESULT([no])
1069: _am_tools=none
1070: fi
1071: AC_MSG_CHECKING([whether GID '$am_gid' is supported by ustar format])
1072: if test $am_gid -le $am_max_gid; then
1073: AC_MSG_RESULT([yes])
1074: else
1075: AC_MSG_RESULT([no])
1076: _am_tools=none
1077: fi],
1078:
1079: [pax],
1080: [],
1081:
1082: [m4_fatal([Unknown tar format])])
1083:
1084: AC_MSG_CHECKING([how to create a $1 tar archive])
1085:
1086: # Go ahead even if we have the value already cached. We do so because we
1087: # need to set the values for the 'am__tar' and 'am__untar' variables.
1088: _am_tools=${am_cv_prog_tar_$1-$_am_tools}
1089:
1090: for _am_tool in $_am_tools; do
1091: case $_am_tool in
1092: gnutar)
1093: for _am_tar in tar gnutar gtar; do
1094: AM_RUN_LOG([$_am_tar --version]) && break
1095: done
1096: am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"'
1097: am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"'
1098: am__untar="$_am_tar -xf -"
1099: ;;
1100: plaintar)
1101: # Must skip GNU tar: if it does not support --format= it doesn't create
1102: # ustar tarball either.
1103: (tar --version) >/dev/null 2>&1 && continue
1104: am__tar='tar chf - "$$tardir"'
1105: am__tar_='tar chf - "$tardir"'
1106: am__untar='tar xf -'
1107: ;;
1108: pax)
1109: am__tar='pax -L -x $1 -w "$$tardir"'
1110: am__tar_='pax -L -x $1 -w "$tardir"'
1111: am__untar='pax -r'
1112: ;;
1113: cpio)
1114: am__tar='find "$$tardir" -print | cpio -o -H $1 -L'
1115: am__tar_='find "$tardir" -print | cpio -o -H $1 -L'
1116: am__untar='cpio -i -H $1 -d'
1117: ;;
1118: none)
1119: am__tar=false
1120: am__tar_=false
1121: am__untar=false
1122: ;;
1123: esac
1124:
1125: # If the value was cached, stop now. We just wanted to have am__tar
1126: # and am__untar set.
1127: test -n "${am_cv_prog_tar_$1}" && break
1128:
1129: # tar/untar a dummy directory, and stop if the command works.
1130: rm -rf conftest.dir
1131: mkdir conftest.dir
1132: echo GrepMe > conftest.dir/file
1133: AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar])
1134: rm -rf conftest.dir
1135: if test -s conftest.tar; then
1136: AM_RUN_LOG([$am__untar <conftest.tar])
1137: AM_RUN_LOG([cat conftest.dir/file])
1138: grep GrepMe conftest.dir/file >/dev/null 2>&1 && break
1139: fi
1140: done
1141: rm -rf conftest.dir
1142:
1143: AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool])
1144: AC_MSG_RESULT([$am_cv_prog_tar_$1])])
1145:
1146: AC_SUBST([am__tar])
1147: AC_SUBST([am__untar])
1148: ]) # _AM_PROG_TAR
1149:
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