source: aclocal.m4 @ c59712e

aaron-thesisarm-ehcleanup-dtorsdeferred_resndemanglerjacob/cs343-translationjenkins-sandboxnew-astnew-ast-unique-exprno_listpersistent-indexer
Last change on this file since c59712e was c59712e, checked in by Thierry Delisle <tdelisle@…>, 3 years ago

Parent make now seems to properly call libcfa

  • Property mode set to 100644
File size: 41.9 KB
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1# generated automatically by aclocal 1.15 -*- Autoconf -*-
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3# Copyright (C) 1996-2014 Free Software Foundation, Inc.
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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
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506AC_REQUIRE([AM_SANITY_CHECK])dnl
507AC_REQUIRE([AC_ARG_PROGRAM])dnl
508AM_MISSING_PROG([ACLOCAL], [aclocal-${am__api_version}])
509AM_MISSING_PROG([AUTOCONF], [autoconf])
510AM_MISSING_PROG([AUTOMAKE], [automake-${am__api_version}])
511AM_MISSING_PROG([AUTOHEADER], [autoheader])
512AM_MISSING_PROG([MAKEINFO], [makeinfo])
513AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
514AC_REQUIRE([AM_PROG_INSTALL_STRIP])dnl
515AC_REQUIRE([AC_PROG_MKDIR_P])dnl
516# For better backward compatibility.  To be removed once Automake 1.9.x
517# dies out for good.  For more background, see:
518# <http://lists.gnu.org/archive/html/automake/2012-07/msg00001.html>
519# <http://lists.gnu.org/archive/html/automake/2012-07/msg00014.html>
520AC_SUBST([mkdir_p], ['$(MKDIR_P)'])
521# We need awk for the "check" target (and possibly the TAP driver).  The
522# system "awk" is bad on some platforms.
523AC_REQUIRE([AC_PROG_AWK])dnl
524AC_REQUIRE([AC_PROG_MAKE_SET])dnl
525AC_REQUIRE([AM_SET_LEADING_DOT])dnl
526_AM_IF_OPTION([tar-ustar], [_AM_PROG_TAR([ustar])],
527              [_AM_IF_OPTION([tar-pax], [_AM_PROG_TAR([pax])],
528                             [_AM_PROG_TAR([v7])])])
529_AM_IF_OPTION([no-dependencies],,
530[AC_PROVIDE_IFELSE([AC_PROG_CC],
531                  [_AM_DEPENDENCIES([CC])],
532                  [m4_define([AC_PROG_CC],
533                             m4_defn([AC_PROG_CC])[_AM_DEPENDENCIES([CC])])])dnl
534AC_PROVIDE_IFELSE([AC_PROG_CXX],
535                  [_AM_DEPENDENCIES([CXX])],
536                  [m4_define([AC_PROG_CXX],
537                             m4_defn([AC_PROG_CXX])[_AM_DEPENDENCIES([CXX])])])dnl
538AC_PROVIDE_IFELSE([AC_PROG_OBJC],
539                  [_AM_DEPENDENCIES([OBJC])],
540                  [m4_define([AC_PROG_OBJC],
541                             m4_defn([AC_PROG_OBJC])[_AM_DEPENDENCIES([OBJC])])])dnl
542AC_PROVIDE_IFELSE([AC_PROG_OBJCXX],
543                  [_AM_DEPENDENCIES([OBJCXX])],
544                  [m4_define([AC_PROG_OBJCXX],
545                             m4_defn([AC_PROG_OBJCXX])[_AM_DEPENDENCIES([OBJCXX])])])dnl
546])
547AC_REQUIRE([AM_SILENT_RULES])dnl
548dnl The testsuite driver may need to know about EXEEXT, so add the
549dnl 'am__EXEEXT' conditional if _AM_COMPILER_EXEEXT was seen.  This
550dnl macro is hooked onto _AC_COMPILER_EXEEXT early, see below.
551AC_CONFIG_COMMANDS_PRE(dnl
552[m4_provide_if([_AM_COMPILER_EXEEXT],
553  [AM_CONDITIONAL([am__EXEEXT], [test -n "$EXEEXT"])])])dnl
554
555# POSIX will say in a future version that running "rm -f" with no argument
556# is OK; and we want to be able to make that assumption in our Makefile
557# recipes.  So use an aggressive probe to check that the usage we want is
558# actually supported "in the wild" to an acceptable degree.
559# See automake bug#10828.
560# To make any issue more visible, cause the running configure to be aborted
561# by default if the 'rm' program in use doesn't match our expectations; the
562# user can still override this though.
563if rm -f && rm -fr && rm -rf; then : OK; else
564  cat >&2 <<'END'
565Oops!
566
567Your 'rm' program seems unable to run without file operands specified
568on the command line, even when the '-f' option is present.  This is contrary
569to the behaviour of most rm programs out there, and not conforming with
570the upcoming POSIX standard: <http://austingroupbugs.net/view.php?id=542>
571
572Please tell bug-automake@gnu.org about your system, including the value
573of your $PATH and any error possibly output before this message.  This
574can help us improve future automake versions.
575
576END
577  if test x"$ACCEPT_INFERIOR_RM_PROGRAM" = x"yes"; then
578    echo 'Configuration will proceed anyway, since you have set the' >&2
579    echo 'ACCEPT_INFERIOR_RM_PROGRAM variable to "yes"' >&2
580    echo >&2
581  else
582    cat >&2 <<'END'
583Aborting the configuration process, to ensure you take notice of the issue.
584
585You can download and install GNU coreutils to get an 'rm' implementation
586that behaves properly: <http://www.gnu.org/software/coreutils/>.
587
588If you want to complete the configuration process using your problematic
589'rm' anyway, export the environment variable ACCEPT_INFERIOR_RM_PROGRAM
590to "yes", and re-run configure.
591
592END
593    AC_MSG_ERROR([Your 'rm' program is bad, sorry.])
594  fi
595fi
596dnl The trailing newline in this macro's definition is deliberate, for
597dnl backward compatibility and to allow trailing 'dnl'-style comments
598dnl after the AM_INIT_AUTOMAKE invocation. See automake bug#16841.
599])
600
601dnl Hook into '_AC_COMPILER_EXEEXT' early to learn its expansion.  Do not
602dnl add the conditional right here, as _AC_COMPILER_EXEEXT may be further
603dnl mangled by Autoconf and run in a shell conditional statement.
604m4_define([_AC_COMPILER_EXEEXT],
605m4_defn([_AC_COMPILER_EXEEXT])[m4_provide([_AM_COMPILER_EXEEXT])])
606
607# When config.status generates a header, we must update the stamp-h file.
608# This file resides in the same directory as the config header
609# that is generated.  The stamp files are numbered to have different names.
610
611# Autoconf calls _AC_AM_CONFIG_HEADER_HOOK (when defined) in the
612# loop where config.status creates the headers, so we can generate
613# our stamp files there.
614AC_DEFUN([_AC_AM_CONFIG_HEADER_HOOK],
615[# Compute $1's index in $config_headers.
616_am_arg=$1
617_am_stamp_count=1
618for _am_header in $config_headers :; do
619  case $_am_header in
620    $_am_arg | $_am_arg:* )
621      break ;;
622    * )
623      _am_stamp_count=`expr $_am_stamp_count + 1` ;;
624  esac
625done
626echo "timestamp for $_am_arg" >`AS_DIRNAME(["$_am_arg"])`/stamp-h[]$_am_stamp_count])
627
628# Copyright (C) 2001-2014 Free Software Foundation, Inc.
629#
630# This file is free software; the Free Software Foundation
631# gives unlimited permission to copy and/or distribute it,
632# with or without modifications, as long as this notice is preserved.
633
634# AM_PROG_INSTALL_SH
635# ------------------
636# Define $install_sh.
637AC_DEFUN([AM_PROG_INSTALL_SH],
638[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
639if test x"${install_sh+set}" != xset; then
640  case $am_aux_dir in
641  *\ * | *\     *)
642    install_sh="\${SHELL} '$am_aux_dir/install-sh'" ;;
643  *)
644    install_sh="\${SHELL} $am_aux_dir/install-sh"
645  esac
646fi
647AC_SUBST([install_sh])])
648
649# Copyright (C) 2003-2014 Free Software Foundation, Inc.
650#
651# This file is free software; the Free Software Foundation
652# gives unlimited permission to copy and/or distribute it,
653# with or without modifications, as long as this notice is preserved.
654
655# Check whether the underlying file-system supports filenames
656# with a leading dot.  For instance MS-DOS doesn't.
657AC_DEFUN([AM_SET_LEADING_DOT],
658[rm -rf .tst 2>/dev/null
659mkdir .tst 2>/dev/null
660if test -d .tst; then
661  am__leading_dot=.
662else
663  am__leading_dot=_
664fi
665rmdir .tst 2>/dev/null
666AC_SUBST([am__leading_dot])])
667
668# Check to see how 'make' treats includes.                  -*- Autoconf -*-
669
670# Copyright (C) 2001-2014 Free Software Foundation, Inc.
671#
672# This file is free software; the Free Software Foundation
673# gives unlimited permission to copy and/or distribute it,
674# with or without modifications, as long as this notice is preserved.
675
676# AM_MAKE_INCLUDE()
677# -----------------
678# Check to see how make treats includes.
679AC_DEFUN([AM_MAKE_INCLUDE],
680[am_make=${MAKE-make}
681cat > confinc << 'END'
682am__doit:
683        @echo this is the am__doit target
684.PHONY: am__doit
685END
686# If we don't find an include directive, just comment out the code.
687AC_MSG_CHECKING([for style of include used by $am_make])
688am__include="#"
689am__quote=
690_am_result=none
691# First try GNU make style include.
692echo "include confinc" > confmf
693# Ignore all kinds of additional output from 'make'.
694case `$am_make -s -f confmf 2> /dev/null` in #(
695*the\ am__doit\ target*)
696  am__include=include
697  am__quote=
698  _am_result=GNU
699  ;;
700esac
701# Now try BSD make style include.
702if test "$am__include" = "#"; then
703   echo '.include "confinc"' > confmf
704   case `$am_make -s -f confmf 2> /dev/null` in #(
705   *the\ am__doit\ target*)
706     am__include=.include
707     am__quote="\""
708     _am_result=BSD
709     ;;
710   esac
711fi
712AC_SUBST([am__include])
713AC_SUBST([am__quote])
714AC_MSG_RESULT([$_am_result])
715rm -f confinc confmf
716])
717
718# Fake the existence of programs that GNU maintainers use.  -*- Autoconf -*-
719
720# Copyright (C) 1997-2014 Free Software Foundation, Inc.
721#
722# This file is free software; the Free Software Foundation
723# gives unlimited permission to copy and/or distribute it,
724# with or without modifications, as long as this notice is preserved.
725
726# AM_MISSING_PROG(NAME, PROGRAM)
727# ------------------------------
728AC_DEFUN([AM_MISSING_PROG],
729[AC_REQUIRE([AM_MISSING_HAS_RUN])
730$1=${$1-"${am_missing_run}$2"}
731AC_SUBST($1)])
732
733# AM_MISSING_HAS_RUN
734# ------------------
735# Define MISSING if not defined so far and test if it is modern enough.
736# If it is, set am_missing_run to use it, otherwise, to nothing.
737AC_DEFUN([AM_MISSING_HAS_RUN],
738[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
739AC_REQUIRE_AUX_FILE([missing])dnl
740if test x"${MISSING+set}" != xset; then
741  case $am_aux_dir in
742  *\ * | *\     *)
743    MISSING="\${SHELL} \"$am_aux_dir/missing\"" ;;
744  *)
745    MISSING="\${SHELL} $am_aux_dir/missing" ;;
746  esac
747fi
748# Use eval to expand $SHELL
749if eval "$MISSING --is-lightweight"; then
750  am_missing_run="$MISSING "
751else
752  am_missing_run=
753  AC_MSG_WARN(['missing' script is too old or missing])
754fi
755])
756
757# Helper functions for option handling.                     -*- Autoconf -*-
758
759# Copyright (C) 2001-2014 Free Software Foundation, Inc.
760#
761# This file is free software; the Free Software Foundation
762# gives unlimited permission to copy and/or distribute it,
763# with or without modifications, as long as this notice is preserved.
764
765# _AM_MANGLE_OPTION(NAME)
766# -----------------------
767AC_DEFUN([_AM_MANGLE_OPTION],
768[[_AM_OPTION_]m4_bpatsubst($1, [[^a-zA-Z0-9_]], [_])])
769
770# _AM_SET_OPTION(NAME)
771# --------------------
772# Set option NAME.  Presently that only means defining a flag for this option.
773AC_DEFUN([_AM_SET_OPTION],
774[m4_define(_AM_MANGLE_OPTION([$1]), [1])])
775
776# _AM_SET_OPTIONS(OPTIONS)
777# ------------------------
778# OPTIONS is a space-separated list of Automake options.
779AC_DEFUN([_AM_SET_OPTIONS],
780[m4_foreach_w([_AM_Option], [$1], [_AM_SET_OPTION(_AM_Option)])])
781
782# _AM_IF_OPTION(OPTION, IF-SET, [IF-NOT-SET])
783# -------------------------------------------
784# Execute IF-SET if OPTION is set, IF-NOT-SET otherwise.
785AC_DEFUN([_AM_IF_OPTION],
786[m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])])
787
788# Copyright (C) 1999-2014 Free Software Foundation, Inc.
789#
790# This file is free software; the Free Software Foundation
791# gives unlimited permission to copy and/or distribute it,
792# with or without modifications, as long as this notice is preserved.
793
794# _AM_PROG_CC_C_O
795# ---------------
796# Like AC_PROG_CC_C_O, but changed for automake.  We rewrite AC_PROG_CC
797# to automatically call this.
798AC_DEFUN([_AM_PROG_CC_C_O],
799[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
800AC_REQUIRE_AUX_FILE([compile])dnl
801AC_LANG_PUSH([C])dnl
802AC_CACHE_CHECK(
803  [whether $CC understands -c and -o together],
804  [am_cv_prog_cc_c_o],
805  [AC_LANG_CONFTEST([AC_LANG_PROGRAM([])])
806  # Make sure it works both with $CC and with simple cc.
807  # Following AC_PROG_CC_C_O, we do the test twice because some
808  # compilers refuse to overwrite an existing .o file with -o,
809  # though they will create one.
810  am_cv_prog_cc_c_o=yes
811  for am_i in 1 2; do
812    if AM_RUN_LOG([$CC -c conftest.$ac_ext -o conftest2.$ac_objext]) \
813         && test -f conftest2.$ac_objext; then
814      : OK
815    else
816      am_cv_prog_cc_c_o=no
817      break
818    fi
819  done
820  rm -f core conftest*
821  unset am_i])
822if test "$am_cv_prog_cc_c_o" != yes; then
823   # Losing compiler, so override with the script.
824   # FIXME: It is wrong to rewrite CC.
825   # But if we don't then we get into trouble of one sort or another.
826   # A longer-term fix would be to have automake use am__CC in this case,
827   # and then we could set am__CC="\$(top_srcdir)/compile \$(CC)"
828   CC="$am_aux_dir/compile $CC"
829fi
830AC_LANG_POP([C])])
831
832# For backward compatibility.
833AC_DEFUN_ONCE([AM_PROG_CC_C_O], [AC_REQUIRE([AC_PROG_CC])])
834
835# Copyright (C) 2001-2014 Free Software Foundation, Inc.
836#
837# This file is free software; the Free Software Foundation
838# gives unlimited permission to copy and/or distribute it,
839# with or without modifications, as long as this notice is preserved.
840
841# AM_RUN_LOG(COMMAND)
842# -------------------
843# Run COMMAND, save the exit status in ac_status, and log it.
844# (This has been adapted from Autoconf's _AC_RUN_LOG macro.)
845AC_DEFUN([AM_RUN_LOG],
846[{ echo "$as_me:$LINENO: $1" >&AS_MESSAGE_LOG_FD
847   ($1) >&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD
848   ac_status=$?
849   echo "$as_me:$LINENO: \$? = $ac_status" >&AS_MESSAGE_LOG_FD
850   (exit $ac_status); }])
851
852# Check to make sure that the build environment is sane.    -*- Autoconf -*-
853
854# Copyright (C) 1996-2014 Free Software Foundation, Inc.
855#
856# This file is free software; the Free Software Foundation
857# gives unlimited permission to copy and/or distribute it,
858# with or without modifications, as long as this notice is preserved.
859
860# AM_SANITY_CHECK
861# ---------------
862AC_DEFUN([AM_SANITY_CHECK],
863[AC_MSG_CHECKING([whether build environment is sane])
864# Reject unsafe characters in $srcdir or the absolute working directory
865# name.  Accept space and tab only in the latter.
866am_lf='
867'
868case `pwd` in
869  *[[\\\"\#\$\&\'\`$am_lf]]*)
870    AC_MSG_ERROR([unsafe absolute working directory name]);;
871esac
872case $srcdir in
873  *[[\\\"\#\$\&\'\`$am_lf\ \    ]]*)
874    AC_MSG_ERROR([unsafe srcdir value: '$srcdir']);;
875esac
876
877# Do 'set' in a subshell so we don't clobber the current shell's
878# arguments.  Must try -L first in case configure is actually a
879# symlink; some systems play weird games with the mod time of symlinks
880# (eg FreeBSD returns the mod time of the symlink's containing
881# directory).
882if (
883   am_has_slept=no
884   for am_try in 1 2; do
885     echo "timestamp, slept: $am_has_slept" > conftest.file
886     set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null`
887     if test "$[*]" = "X"; then
888        # -L didn't work.
889        set X `ls -t "$srcdir/configure" conftest.file`
890     fi
891     if test "$[*]" != "X $srcdir/configure conftest.file" \
892        && test "$[*]" != "X conftest.file $srcdir/configure"; then
893
894        # If neither matched, then we have a broken ls.  This can happen
895        # if, for instance, CONFIG_SHELL is bash and it inherits a
896        # broken ls alias from the environment.  This has actually
897        # happened.  Such a system could not be considered "sane".
898        AC_MSG_ERROR([ls -t appears to fail.  Make sure there is not a broken
899  alias in your environment])
900     fi
901     if test "$[2]" = conftest.file || test $am_try -eq 2; then
902       break
903     fi
904     # Just in case.
905     sleep 1
906     am_has_slept=yes
907   done
908   test "$[2]" = conftest.file
909   )
910then
911   # Ok.
912   :
913else
914   AC_MSG_ERROR([newly created file is older than distributed files!
915Check your system clock])
916fi
917AC_MSG_RESULT([yes])
918# If we didn't sleep, we still need to ensure time stamps of config.status and
919# generated files are strictly newer.
920am_sleep_pid=
921if grep 'slept: no' conftest.file >/dev/null 2>&1; then
922  ( sleep 1 ) &
923  am_sleep_pid=$!
924fi
925AC_CONFIG_COMMANDS_PRE(
926  [AC_MSG_CHECKING([that generated files are newer than configure])
927   if test -n "$am_sleep_pid"; then
928     # Hide warnings about reused PIDs.
929     wait $am_sleep_pid 2>/dev/null
930   fi
931   AC_MSG_RESULT([done])])
932rm -f conftest.file
933])
934
935# Copyright (C) 2009-2014 Free Software Foundation, Inc.
936#
937# This file is free software; the Free Software Foundation
938# gives unlimited permission to copy and/or distribute it,
939# with or without modifications, as long as this notice is preserved.
940
941# AM_SILENT_RULES([DEFAULT])
942# --------------------------
943# Enable less verbose build rules; with the default set to DEFAULT
944# ("yes" being less verbose, "no" or empty being verbose).
945AC_DEFUN([AM_SILENT_RULES],
946[AC_ARG_ENABLE([silent-rules], [dnl
947AS_HELP_STRING(
948  [--enable-silent-rules],
949  [less verbose build output (undo: "make V=1")])
950AS_HELP_STRING(
951  [--disable-silent-rules],
952  [verbose build output (undo: "make V=0")])dnl
953])
954case $enable_silent_rules in @%:@ (((
955  yes) AM_DEFAULT_VERBOSITY=0;;
956   no) AM_DEFAULT_VERBOSITY=1;;
957    *) AM_DEFAULT_VERBOSITY=m4_if([$1], [yes], [0], [1]);;
958esac
959dnl
960dnl A few 'make' implementations (e.g., NonStop OS and NextStep)
961dnl do not support nested variable expansions.
962dnl See automake bug#9928 and bug#10237.
963am_make=${MAKE-make}
964AC_CACHE_CHECK([whether $am_make supports nested variables],
965   [am_cv_make_support_nested_variables],
966   [if AS_ECHO([['TRUE=$(BAR$(V))
967BAR0=false
968BAR1=true
969V=1
970am__doit:
971        @$(TRUE)
972.PHONY: am__doit']]) | $am_make -f - >/dev/null 2>&1; then
973  am_cv_make_support_nested_variables=yes
974else
975  am_cv_make_support_nested_variables=no
976fi])
977if test $am_cv_make_support_nested_variables = yes; then
978  dnl Using '$V' instead of '$(V)' breaks IRIX make.
979  AM_V='$(V)'
980  AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
981else
982  AM_V=$AM_DEFAULT_VERBOSITY
983  AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY
984fi
985AC_SUBST([AM_V])dnl
986AM_SUBST_NOTMAKE([AM_V])dnl
987AC_SUBST([AM_DEFAULT_V])dnl
988AM_SUBST_NOTMAKE([AM_DEFAULT_V])dnl
989AC_SUBST([AM_DEFAULT_VERBOSITY])dnl
990AM_BACKSLASH='\'
991AC_SUBST([AM_BACKSLASH])dnl
992_AM_SUBST_NOTMAKE([AM_BACKSLASH])dnl
993])
994
995# Copyright (C) 2001-2014 Free Software Foundation, Inc.
996#
997# This file is free software; the Free Software Foundation
998# gives unlimited permission to copy and/or distribute it,
999# with or without modifications, as long as this notice is preserved.
1000
1001# AM_PROG_INSTALL_STRIP
1002# ---------------------
1003# One issue with vendor 'install' (even GNU) is that you can't
1004# specify the program used to strip binaries.  This is especially
1005# annoying in cross-compiling environments, where the build's strip
1006# is unlikely to handle the host's binaries.
1007# Fortunately install-sh will honor a STRIPPROG variable, so we
1008# always use install-sh in "make install-strip", and initialize
1009# STRIPPROG with the value of the STRIP variable (set by the user).
1010AC_DEFUN([AM_PROG_INSTALL_STRIP],
1011[AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
1012# Installed binaries are usually stripped using 'strip' when the user
1013# run "make install-strip".  However 'strip' might not be the right
1014# tool to use in cross-compilation environments, therefore Automake
1015# will honor the 'STRIP' environment variable to overrule this program.
1016dnl Don't test for $cross_compiling = yes, because it might be 'maybe'.
1017if test "$cross_compiling" != no; then
1018  AC_CHECK_TOOL([STRIP], [strip], :)
1019fi
1020INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
1021AC_SUBST([INSTALL_STRIP_PROGRAM])])
1022
1023# Copyright (C) 2006-2014 Free Software Foundation, Inc.
1024#
1025# This file is free software; the Free Software Foundation
1026# gives unlimited permission to copy and/or distribute it,
1027# with or without modifications, as long as this notice is preserved.
1028
1029# _AM_SUBST_NOTMAKE(VARIABLE)
1030# ---------------------------
1031# Prevent Automake from outputting VARIABLE = @VARIABLE@ in Makefile.in.
1032# This macro is traced by Automake.
1033AC_DEFUN([_AM_SUBST_NOTMAKE])
1034
1035# AM_SUBST_NOTMAKE(VARIABLE)
1036# --------------------------
1037# Public sister of _AM_SUBST_NOTMAKE.
1038AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE($@)])
1039
1040# Check how to create a tarball.                            -*- Autoconf -*-
1041
1042# Copyright (C) 2004-2014 Free Software Foundation, Inc.
1043#
1044# This file is free software; the Free Software Foundation
1045# gives unlimited permission to copy and/or distribute it,
1046# with or without modifications, as long as this notice is preserved.
1047
1048# _AM_PROG_TAR(FORMAT)
1049# --------------------
1050# Check how to create a tarball in format FORMAT.
1051# FORMAT should be one of 'v7', 'ustar', or 'pax'.
1052#
1053# Substitute a variable $(am__tar) that is a command
1054# writing to stdout a FORMAT-tarball containing the directory
1055# $tardir.
1056#     tardir=directory && $(am__tar) > result.tar
1057#
1058# Substitute a variable $(am__untar) that extract such
1059# a tarball read from stdin.
1060#     $(am__untar) < result.tar
1061#
1062AC_DEFUN([_AM_PROG_TAR],
1063[# Always define AMTAR for backward compatibility.  Yes, it's still used
1064# in the wild :-(  We should find a proper way to deprecate it ...
1065AC_SUBST([AMTAR], ['$${TAR-tar}'])
1066
1067# We'll loop over all known methods to create a tar archive until one works.
1068_am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none'
1069
1070m4_if([$1], [v7],
1071  [am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'],
1072
1073  [m4_case([$1],
1074    [ustar],
1075     [# The POSIX 1988 'ustar' format is defined with fixed-size fields.
1076      # There is notably a 21 bits limit for the UID and the GID.  In fact,
1077      # the 'pax' utility can hang on bigger UID/GID (see automake bug#8343
1078      # and bug#13588).
1079      am_max_uid=2097151 # 2^21 - 1
1080      am_max_gid=$am_max_uid
1081      # The $UID and $GID variables are not portable, so we need to resort
1082      # to the POSIX-mandated id(1) utility.  Errors in the 'id' calls
1083      # below are definitely unexpected, so allow the users to see them
1084      # (that is, avoid stderr redirection).
1085      am_uid=`id -u || echo unknown`
1086      am_gid=`id -g || echo unknown`
1087      AC_MSG_CHECKING([whether UID '$am_uid' is supported by ustar format])
1088      if test $am_uid -le $am_max_uid; then
1089         AC_MSG_RESULT([yes])
1090      else
1091         AC_MSG_RESULT([no])
1092         _am_tools=none
1093      fi
1094      AC_MSG_CHECKING([whether GID '$am_gid' is supported by ustar format])
1095      if test $am_gid -le $am_max_gid; then
1096         AC_MSG_RESULT([yes])
1097      else
1098        AC_MSG_RESULT([no])
1099        _am_tools=none
1100      fi],
1101
1102  [pax],
1103    [],
1104
1105  [m4_fatal([Unknown tar format])])
1106
1107  AC_MSG_CHECKING([how to create a $1 tar archive])
1108
1109  # Go ahead even if we have the value already cached.  We do so because we
1110  # need to set the values for the 'am__tar' and 'am__untar' variables.
1111  _am_tools=${am_cv_prog_tar_$1-$_am_tools}
1112
1113  for _am_tool in $_am_tools; do
1114    case $_am_tool in
1115    gnutar)
1116      for _am_tar in tar gnutar gtar; do
1117        AM_RUN_LOG([$_am_tar --version]) && break
1118      done
1119      am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"'
1120      am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"'
1121      am__untar="$_am_tar -xf -"
1122      ;;
1123    plaintar)
1124      # Must skip GNU tar: if it does not support --format= it doesn't create
1125      # ustar tarball either.
1126      (tar --version) >/dev/null 2>&1 && continue
1127      am__tar='tar chf - "$$tardir"'
1128      am__tar_='tar chf - "$tardir"'
1129      am__untar='tar xf -'
1130      ;;
1131    pax)
1132      am__tar='pax -L -x $1 -w "$$tardir"'
1133      am__tar_='pax -L -x $1 -w "$tardir"'
1134      am__untar='pax -r'
1135      ;;
1136    cpio)
1137      am__tar='find "$$tardir" -print | cpio -o -H $1 -L'
1138      am__tar_='find "$tardir" -print | cpio -o -H $1 -L'
1139      am__untar='cpio -i -H $1 -d'
1140      ;;
1141    none)
1142      am__tar=false
1143      am__tar_=false
1144      am__untar=false
1145      ;;
1146    esac
1147
1148    # If the value was cached, stop now.  We just wanted to have am__tar
1149    # and am__untar set.
1150    test -n "${am_cv_prog_tar_$1}" && break
1151
1152    # tar/untar a dummy directory, and stop if the command works.
1153    rm -rf conftest.dir
1154    mkdir conftest.dir
1155    echo GrepMe > conftest.dir/file
1156    AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar])
1157    rm -rf conftest.dir
1158    if test -s conftest.tar; then
1159      AM_RUN_LOG([$am__untar <conftest.tar])
1160      AM_RUN_LOG([cat conftest.dir/file])
1161      grep GrepMe conftest.dir/file >/dev/null 2>&1 && break
1162    fi
1163  done
1164  rm -rf conftest.dir
1165
1166  AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool])
1167  AC_MSG_RESULT([$am_cv_prog_tar_$1])])
1168
1169AC_SUBST([am__tar])
1170AC_SUBST([am__untar])
1171]) # _AM_PROG_TAR
1172
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