source: gtest-1.7.0/aclocal.m4@ 12761

Last change on this file since 12761 was 12746, checked in by hock@…, 11 years ago

integrated the Google Testing Framework (gtest)

and wrote an Hello World test, to ensure the framework is working..
File size: 42.7 KB
Line 
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539# that is generated. The stamp files are numbered to have different names.
540
541# Autoconf calls _AC_AM_CONFIG_HEADER_HOOK (when defined) in the
542# loop where config.status creates the headers, so we can generate
543# our stamp files there.
544AC_DEFUN([_AC_AM_CONFIG_HEADER_HOOK],
545[# Compute $1's index in $config_headers.
546_am_arg=$1
547_am_stamp_count=1
548for _am_header in $config_headers :; do
549 case $_am_header in
550 $_am_arg | $_am_arg:* )
551 break ;;
552 * )
553 _am_stamp_count=`expr $_am_stamp_count + 1` ;;
554 esac
555done
556echo "timestamp for $_am_arg" >`AS_DIRNAME(["$_am_arg"])`/stamp-h[]$_am_stamp_count])
557
558# Copyright (C) 2001, 2003, 2005, 2008, 2011 Free Software Foundation,
559# Inc.
560#
561# This file is free software; the Free Software Foundation
562# gives unlimited permission to copy and/or distribute it,
563# with or without modifications, as long as this notice is preserved.
564
565# serial 1
566
567# AM_PROG_INSTALL_SH
568# ------------------
569# Define $install_sh.
570AC_DEFUN([AM_PROG_INSTALL_SH],
571[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
572if test x"${install_sh}" != xset; then
573 case $am_aux_dir in
574 *\ * | *\ *)
575 install_sh="\${SHELL} '$am_aux_dir/install-sh'" ;;
576 *)
577 install_sh="\${SHELL} $am_aux_dir/install-sh"
578 esac
579fi
580AC_SUBST(install_sh)])
581
582# Copyright (C) 2003, 2005 Free Software Foundation, Inc.
583#
584# This file is free software; the Free Software Foundation
585# gives unlimited permission to copy and/or distribute it,
586# with or without modifications, as long as this notice is preserved.
587
588# serial 2
589
590# Check whether the underlying file-system supports filenames
591# with a leading dot. For instance MS-DOS doesn't.
592AC_DEFUN([AM_SET_LEADING_DOT],
593[rm -rf .tst 2>/dev/null
594mkdir .tst 2>/dev/null
595if test -d .tst; then
596 am__leading_dot=.
597else
598 am__leading_dot=_
599fi
600rmdir .tst 2>/dev/null
601AC_SUBST([am__leading_dot])])
602
603# Check to see how 'make' treats includes. -*- Autoconf -*-
604
605# Copyright (C) 2001, 2002, 2003, 2005, 2009 Free Software Foundation, Inc.
606#
607# This file is free software; the Free Software Foundation
608# gives unlimited permission to copy and/or distribute it,
609# with or without modifications, as long as this notice is preserved.
610
611# serial 4
612
613# AM_MAKE_INCLUDE()
614# -----------------
615# Check to see how make treats includes.
616AC_DEFUN([AM_MAKE_INCLUDE],
617[am_make=${MAKE-make}
618cat > confinc << 'END'
619am__doit:
620 @echo this is the am__doit target
621.PHONY: am__doit
622END
623# If we don't find an include directive, just comment out the code.
624AC_MSG_CHECKING([for style of include used by $am_make])
625am__include="#"
626am__quote=
627_am_result=none
628# First try GNU make style include.
629echo "include confinc" > confmf
630# Ignore all kinds of additional output from `make'.
631case `$am_make -s -f confmf 2> /dev/null` in #(
632*the\ am__doit\ target*)
633 am__include=include
634 am__quote=
635 _am_result=GNU
636 ;;
637esac
638# Now try BSD make style include.
639if test "$am__include" = "#"; then
640 echo '.include "confinc"' > confmf
641 case `$am_make -s -f confmf 2> /dev/null` in #(
642 *the\ am__doit\ target*)
643 am__include=.include
644 am__quote="\""
645 _am_result=BSD
646 ;;
647 esac
648fi
649AC_SUBST([am__include])
650AC_SUBST([am__quote])
651AC_MSG_RESULT([$_am_result])
652rm -f confinc confmf
653])
654
655# Fake the existence of programs that GNU maintainers use. -*- Autoconf -*-
656
657# Copyright (C) 1997, 1999, 2000, 2001, 2003, 2004, 2005, 2008
658# Free Software Foundation, Inc.
659#
660# This file is free software; the Free Software Foundation
661# gives unlimited permission to copy and/or distribute it,
662# with or without modifications, as long as this notice is preserved.
663
664# serial 6
665
666# AM_MISSING_PROG(NAME, PROGRAM)
667# ------------------------------
668AC_DEFUN([AM_MISSING_PROG],
669[AC_REQUIRE([AM_MISSING_HAS_RUN])
670$1=${$1-"${am_missing_run}$2"}
671AC_SUBST($1)])
672
673
674# AM_MISSING_HAS_RUN
675# ------------------
676# Define MISSING if not defined so far and test if it supports --run.
677# If it does, set am_missing_run to use it, otherwise, to nothing.
678AC_DEFUN([AM_MISSING_HAS_RUN],
679[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
680AC_REQUIRE_AUX_FILE([missing])dnl
681if test x"${MISSING+set}" != xset; then
682 case $am_aux_dir in
683 *\ * | *\ *)
684 MISSING="\${SHELL} \"$am_aux_dir/missing\"" ;;
685 *)
686 MISSING="\${SHELL} $am_aux_dir/missing" ;;
687 esac
688fi
689# Use eval to expand $SHELL
690if eval "$MISSING --run true"; then
691 am_missing_run="$MISSING --run "
692else
693 am_missing_run=
694 AC_MSG_WARN([`missing' script is too old or missing])
695fi
696])
697
698# Copyright (C) 2003, 2004, 2005, 2006, 2011 Free Software Foundation,
699# Inc.
700#
701# This file is free software; the Free Software Foundation
702# gives unlimited permission to copy and/or distribute it,
703# with or without modifications, as long as this notice is preserved.
704
705# serial 1
706
707# AM_PROG_MKDIR_P
708# ---------------
709# Check for `mkdir -p'.
710AC_DEFUN([AM_PROG_MKDIR_P],
711[AC_PREREQ([2.60])dnl
712AC_REQUIRE([AC_PROG_MKDIR_P])dnl
713dnl Automake 1.8 to 1.9.6 used to define mkdir_p. We now use MKDIR_P,
714dnl while keeping a definition of mkdir_p for backward compatibility.
715dnl @MKDIR_P@ is magic: AC_OUTPUT adjusts its value for each Makefile.
716dnl However we cannot define mkdir_p as $(MKDIR_P) for the sake of
717dnl Makefile.ins that do not define MKDIR_P, so we do our own
718dnl adjustment using top_builddir (which is defined more often than
719dnl MKDIR_P).
720AC_SUBST([mkdir_p], ["$MKDIR_P"])dnl
721case $mkdir_p in
722 [[\\/$]]* | ?:[[\\/]]*) ;;
723 */*) mkdir_p="\$(top_builddir)/$mkdir_p" ;;
724esac
725])
726
727# Helper functions for option handling. -*- Autoconf -*-
728
729# Copyright (C) 2001, 2002, 2003, 2005, 2008, 2010 Free Software
730# Foundation, Inc.
731#
732# This file is free software; the Free Software Foundation
733# gives unlimited permission to copy and/or distribute it,
734# with or without modifications, as long as this notice is preserved.
735
736# serial 5
737
738# _AM_MANGLE_OPTION(NAME)
739# -----------------------
740AC_DEFUN([_AM_MANGLE_OPTION],
741[[_AM_OPTION_]m4_bpatsubst($1, [[^a-zA-Z0-9_]], [_])])
742
743# _AM_SET_OPTION(NAME)
744# --------------------
745# Set option NAME. Presently that only means defining a flag for this option.
746AC_DEFUN([_AM_SET_OPTION],
747[m4_define(_AM_MANGLE_OPTION([$1]), 1)])
748
749# _AM_SET_OPTIONS(OPTIONS)
750# ------------------------
751# OPTIONS is a space-separated list of Automake options.
752AC_DEFUN([_AM_SET_OPTIONS],
753[m4_foreach_w([_AM_Option], [$1], [_AM_SET_OPTION(_AM_Option)])])
754
755# _AM_IF_OPTION(OPTION, IF-SET, [IF-NOT-SET])
756# -------------------------------------------
757# Execute IF-SET if OPTION is set, IF-NOT-SET otherwise.
758AC_DEFUN([_AM_IF_OPTION],
759[m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])])
760
761# Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2008, 2009,
762# 2011 Free Software Foundation, Inc.
763#
764# This file is free software; the Free Software Foundation
765# gives unlimited permission to copy and/or distribute it,
766# with or without modifications, as long as this notice is preserved.
767
768# serial 2
769
770# AM_PATH_PYTHON([MINIMUM-VERSION], [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
771# ---------------------------------------------------------------------------
772# Adds support for distributing Python modules and packages. To
773# install modules, copy them to $(pythondir), using the python_PYTHON
774# automake variable. To install a package with the same name as the
775# automake package, install to $(pkgpythondir), or use the
776# pkgpython_PYTHON automake variable.
777#
778# The variables $(pyexecdir) and $(pkgpyexecdir) are provided as
779# locations to install python extension modules (shared libraries).
780# Another macro is required to find the appropriate flags to compile
781# extension modules.
782#
783# If your package is configured with a different prefix to python,
784# users will have to add the install directory to the PYTHONPATH
785# environment variable, or create a .pth file (see the python
786# documentation for details).
787#
788# If the MINIMUM-VERSION argument is passed, AM_PATH_PYTHON will
789# cause an error if the version of python installed on the system
790# doesn't meet the requirement. MINIMUM-VERSION should consist of
791# numbers and dots only.
792AC_DEFUN([AM_PATH_PYTHON],
793 [
794 dnl Find a Python interpreter. Python versions prior to 2.0 are not
795 dnl supported. (2.0 was released on October 16, 2000).
796 m4_define_default([_AM_PYTHON_INTERPRETER_LIST],
797[python python2 python3 python3.2 python3.1 python3.0 python2.7 dnl
798 python2.6 python2.5 python2.4 python2.3 python2.2 python2.1 python2.0])
799
800 AC_ARG_VAR([PYTHON], [the Python interpreter])
801
802 m4_if([$1],[],[
803 dnl No version check is needed.
804 # Find any Python interpreter.
805 if test -z "$PYTHON"; then
806 AC_PATH_PROGS([PYTHON], _AM_PYTHON_INTERPRETER_LIST, :)
807 fi
808 am_display_PYTHON=python
809 ], [
810 dnl A version check is needed.
811 if test -n "$PYTHON"; then
812 # If the user set $PYTHON, use it and don't search something else.
813 AC_MSG_CHECKING([whether $PYTHON version >= $1])
814 AM_PYTHON_CHECK_VERSION([$PYTHON], [$1],
815 [AC_MSG_RESULT(yes)],
816 [AC_MSG_ERROR(too old)])
817 am_display_PYTHON=$PYTHON
818 else
819 # Otherwise, try each interpreter until we find one that satisfies
820 # VERSION.
821 AC_CACHE_CHECK([for a Python interpreter with version >= $1],
822 [am_cv_pathless_PYTHON],[
823 for am_cv_pathless_PYTHON in _AM_PYTHON_INTERPRETER_LIST none; do
824 test "$am_cv_pathless_PYTHON" = none && break
825 AM_PYTHON_CHECK_VERSION([$am_cv_pathless_PYTHON], [$1], [break])
826 done])
827 # Set $PYTHON to the absolute path of $am_cv_pathless_PYTHON.
828 if test "$am_cv_pathless_PYTHON" = none; then
829 PYTHON=:
830 else
831 AC_PATH_PROG([PYTHON], [$am_cv_pathless_PYTHON])
832 fi
833 am_display_PYTHON=$am_cv_pathless_PYTHON
834 fi
835 ])
836
837 if test "$PYTHON" = :; then
838 dnl Run any user-specified action, or abort.
839 m4_default([$3], [AC_MSG_ERROR([no suitable Python interpreter found])])
840 else
841
842 dnl Query Python for its version number. Getting [:3] seems to be
843 dnl the best way to do this; it's what "site.py" does in the standard
844 dnl library.
845
846 AC_CACHE_CHECK([for $am_display_PYTHON version], [am_cv_python_version],
847 [am_cv_python_version=`$PYTHON -c "import sys; sys.stdout.write(sys.version[[:3]])"`])
848 AC_SUBST([PYTHON_VERSION], [$am_cv_python_version])
849
850 dnl Use the values of $prefix and $exec_prefix for the corresponding
851 dnl values of PYTHON_PREFIX and PYTHON_EXEC_PREFIX. These are made
852 dnl distinct variables so they can be overridden if need be. However,
853 dnl general consensus is that you shouldn't need this ability.
854
855 AC_SUBST([PYTHON_PREFIX], ['${prefix}'])
856 AC_SUBST([PYTHON_EXEC_PREFIX], ['${exec_prefix}'])
857
858 dnl At times (like when building shared libraries) you may want
859 dnl to know which OS platform Python thinks this is.
860
861 AC_CACHE_CHECK([for $am_display_PYTHON platform], [am_cv_python_platform],
862 [am_cv_python_platform=`$PYTHON -c "import sys; sys.stdout.write(sys.platform)"`])
863 AC_SUBST([PYTHON_PLATFORM], [$am_cv_python_platform])
864
865
866 dnl Set up 4 directories:
867
868 dnl pythondir -- where to install python scripts. This is the
869 dnl site-packages directory, not the python standard library
870 dnl directory like in previous automake betas. This behavior
871 dnl is more consistent with lispdir.m4 for example.
872 dnl Query distutils for this directory.
873 AC_CACHE_CHECK([for $am_display_PYTHON script directory],
874 [am_cv_python_pythondir],
875 [if test "x$prefix" = xNONE
876 then
877 am_py_prefix=$ac_default_prefix
878 else
879 am_py_prefix=$prefix
880 fi
881 am_cv_python_pythondir=`$PYTHON -c "import sys; from distutils import sysconfig; sys.stdout.write(sysconfig.get_python_lib(0,0,prefix='$am_py_prefix'))" 2>/dev/null`
882 case $am_cv_python_pythondir in
883 $am_py_prefix*)
884 am__strip_prefix=`echo "$am_py_prefix" | sed 's|.|.|g'`
885 am_cv_python_pythondir=`echo "$am_cv_python_pythondir" | sed "s,^$am__strip_prefix,$PYTHON_PREFIX,"`
886 ;;
887 *)
888 case $am_py_prefix in
889 /usr|/System*) ;;
890 *)
891 am_cv_python_pythondir=$PYTHON_PREFIX/lib/python$PYTHON_VERSION/site-packages
892 ;;
893 esac
894 ;;
895 esac
896 ])
897 AC_SUBST([pythondir], [$am_cv_python_pythondir])
898
899 dnl pkgpythondir -- $PACKAGE directory under pythondir. Was
900 dnl PYTHON_SITE_PACKAGE in previous betas, but this naming is
901 dnl more consistent with the rest of automake.
902
903 AC_SUBST([pkgpythondir], [\${pythondir}/$PACKAGE])
904
905 dnl pyexecdir -- directory for installing python extension modules
906 dnl (shared libraries)
907 dnl Query distutils for this directory.
908 AC_CACHE_CHECK([for $am_display_PYTHON extension module directory],
909 [am_cv_python_pyexecdir],
910 [if test "x$exec_prefix" = xNONE
911 then
912 am_py_exec_prefix=$am_py_prefix
913 else
914 am_py_exec_prefix=$exec_prefix
915 fi
916 am_cv_python_pyexecdir=`$PYTHON -c "import sys; from distutils import sysconfig; sys.stdout.write(sysconfig.get_python_lib(1,0,prefix='$am_py_exec_prefix'))" 2>/dev/null`
917 case $am_cv_python_pyexecdir in
918 $am_py_exec_prefix*)
919 am__strip_prefix=`echo "$am_py_exec_prefix" | sed 's|.|.|g'`
920 am_cv_python_pyexecdir=`echo "$am_cv_python_pyexecdir" | sed "s,^$am__strip_prefix,$PYTHON_EXEC_PREFIX,"`
921 ;;
922 *)
923 case $am_py_exec_prefix in
924 /usr|/System*) ;;
925 *)
926 am_cv_python_pyexecdir=$PYTHON_EXEC_PREFIX/lib/python$PYTHON_VERSION/site-packages
927 ;;
928 esac
929 ;;
930 esac
931 ])
932 AC_SUBST([pyexecdir], [$am_cv_python_pyexecdir])
933
934 dnl pkgpyexecdir -- $(pyexecdir)/$(PACKAGE)
935
936 AC_SUBST([pkgpyexecdir], [\${pyexecdir}/$PACKAGE])
937
938 dnl Run any user-specified action.
939 $2
940 fi
941
942])
943
944
945# AM_PYTHON_CHECK_VERSION(PROG, VERSION, [ACTION-IF-TRUE], [ACTION-IF-FALSE])
946# ---------------------------------------------------------------------------
947# Run ACTION-IF-TRUE if the Python interpreter PROG has version >= VERSION.
948# Run ACTION-IF-FALSE otherwise.
949# This test uses sys.hexversion instead of the string equivalent (first
950# word of sys.version), in order to cope with versions such as 2.2c1.
951# This supports Python 2.0 or higher. (2.0 was released on October 16, 2000).
952AC_DEFUN([AM_PYTHON_CHECK_VERSION],
953 [prog="import sys
954# split strings by '.' and convert to numeric. Append some zeros
955# because we need at least 4 digits for the hex conversion.
956# map returns an iterator in Python 3.0 and a list in 2.x
957minver = list(map(int, '$2'.split('.'))) + [[0, 0, 0]]
958minverhex = 0
959# xrange is not present in Python 3.0 and range returns an iterator
960for i in list(range(0, 4)): minverhex = (minverhex << 8) + minver[[i]]
961sys.exit(sys.hexversion < minverhex)"
962 AS_IF([AM_RUN_LOG([$1 -c "$prog"])], [$3], [$4])])
963
964# Copyright (C) 2001, 2003, 2005, 2011 Free Software Foundation, Inc.
965#
966# This file is free software; the Free Software Foundation
967# gives unlimited permission to copy and/or distribute it,
968# with or without modifications, as long as this notice is preserved.
969
970# serial 1
971
972# AM_RUN_LOG(COMMAND)
973# -------------------
974# Run COMMAND, save the exit status in ac_status, and log it.
975# (This has been adapted from Autoconf's _AC_RUN_LOG macro.)
976AC_DEFUN([AM_RUN_LOG],
977[{ echo "$as_me:$LINENO: $1" >&AS_MESSAGE_LOG_FD
978 ($1) >&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD
979 ac_status=$?
980 echo "$as_me:$LINENO: \$? = $ac_status" >&AS_MESSAGE_LOG_FD
981 (exit $ac_status); }])
982
983# Check to make sure that the build environment is sane. -*- Autoconf -*-
984
985# Copyright (C) 1996, 1997, 2000, 2001, 2003, 2005, 2008
986# Free Software Foundation, Inc.
987#
988# This file is free software; the Free Software Foundation
989# gives unlimited permission to copy and/or distribute it,
990# with or without modifications, as long as this notice is preserved.
991
992# serial 5
993
994# AM_SANITY_CHECK
995# ---------------
996AC_DEFUN([AM_SANITY_CHECK],
997[AC_MSG_CHECKING([whether build environment is sane])
998# Just in case
999sleep 1
1000echo timestamp > conftest.file
1001# Reject unsafe characters in $srcdir or the absolute working directory
1002# name. Accept space and tab only in the latter.
1003am_lf='
1004'
1005case `pwd` in
1006 *[[\\\"\#\$\&\'\`$am_lf]]*)
1007 AC_MSG_ERROR([unsafe absolute working directory name]);;
1008esac
1009case $srcdir in
1010 *[[\\\"\#\$\&\'\`$am_lf\ \ ]]*)
1011 AC_MSG_ERROR([unsafe srcdir value: `$srcdir']);;
1012esac
1013
1014# Do `set' in a subshell so we don't clobber the current shell's
1015# arguments. Must try -L first in case configure is actually a
1016# symlink; some systems play weird games with the mod time of symlinks
1017# (eg FreeBSD returns the mod time of the symlink's containing
1018# directory).
1019if (
1020 set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null`
1021 if test "$[*]" = "X"; then
1022 # -L didn't work.
1023 set X `ls -t "$srcdir/configure" conftest.file`
1024 fi
1025 rm -f conftest.file
1026 if test "$[*]" != "X $srcdir/configure conftest.file" \
1027 && test "$[*]" != "X conftest.file $srcdir/configure"; then
1028
1029 # If neither matched, then we have a broken ls. This can happen
1030 # if, for instance, CONFIG_SHELL is bash and it inherits a
1031 # broken ls alias from the environment. This has actually
1032 # happened. Such a system could not be considered "sane".
1033 AC_MSG_ERROR([ls -t appears to fail. Make sure there is not a broken
1034alias in your environment])
1035 fi
1036
1037 test "$[2]" = conftest.file
1038 )
1039then
1040 # Ok.
1041 :
1042else
1043 AC_MSG_ERROR([newly created file is older than distributed files!
1044Check your system clock])
1045fi
1046AC_MSG_RESULT(yes)])
1047
1048# Copyright (C) 2001, 2003, 2005, 2011 Free Software Foundation, Inc.
1049#
1050# This file is free software; the Free Software Foundation
1051# gives unlimited permission to copy and/or distribute it,
1052# with or without modifications, as long as this notice is preserved.
1053
1054# serial 1
1055
1056# AM_PROG_INSTALL_STRIP
1057# ---------------------
1058# One issue with vendor `install' (even GNU) is that you can't
1059# specify the program used to strip binaries. This is especially
1060# annoying in cross-compiling environments, where the build's strip
1061# is unlikely to handle the host's binaries.
1062# Fortunately install-sh will honor a STRIPPROG variable, so we
1063# always use install-sh in `make install-strip', and initialize
1064# STRIPPROG with the value of the STRIP variable (set by the user).
1065AC_DEFUN([AM_PROG_INSTALL_STRIP],
1066[AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
1067# Installed binaries are usually stripped using `strip' when the user
1068# run `make install-strip'. However `strip' might not be the right
1069# tool to use in cross-compilation environments, therefore Automake
1070# will honor the `STRIP' environment variable to overrule this program.
1071dnl Don't test for $cross_compiling = yes, because it might be `maybe'.
1072if test "$cross_compiling" != no; then
1073 AC_CHECK_TOOL([STRIP], [strip], :)
1074fi
1075INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
1076AC_SUBST([INSTALL_STRIP_PROGRAM])])
1077
1078# Copyright (C) 2006, 2008, 2010 Free Software Foundation, Inc.
1079#
1080# This file is free software; the Free Software Foundation
1081# gives unlimited permission to copy and/or distribute it,
1082# with or without modifications, as long as this notice is preserved.
1083
1084# serial 3
1085
1086# _AM_SUBST_NOTMAKE(VARIABLE)
1087# ---------------------------
1088# Prevent Automake from outputting VARIABLE = @VARIABLE@ in Makefile.in.
1089# This macro is traced by Automake.
1090AC_DEFUN([_AM_SUBST_NOTMAKE])
1091
1092# AM_SUBST_NOTMAKE(VARIABLE)
1093# --------------------------
1094# Public sister of _AM_SUBST_NOTMAKE.
1095AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE($@)])
1096
1097# Check how to create a tarball. -*- Autoconf -*-
1098
1099# Copyright (C) 2004, 2005, 2012 Free Software Foundation, Inc.
1100#
1101# This file is free software; the Free Software Foundation
1102# gives unlimited permission to copy and/or distribute it,
1103# with or without modifications, as long as this notice is preserved.
1104
1105# serial 2
1106
1107# _AM_PROG_TAR(FORMAT)
1108# --------------------
1109# Check how to create a tarball in format FORMAT.
1110# FORMAT should be one of `v7', `ustar', or `pax'.
1111#
1112# Substitute a variable $(am__tar) that is a command
1113# writing to stdout a FORMAT-tarball containing the directory
1114# $tardir.
1115# tardir=directory && $(am__tar) > result.tar
1116#
1117# Substitute a variable $(am__untar) that extract such
1118# a tarball read from stdin.
1119# $(am__untar) < result.tar
1120AC_DEFUN([_AM_PROG_TAR],
1121[# Always define AMTAR for backward compatibility. Yes, it's still used
1122# in the wild :-( We should find a proper way to deprecate it ...
1123AC_SUBST([AMTAR], ['$${TAR-tar}'])
1124m4_if([$1], [v7],
1125 [am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'],
1126 [m4_case([$1], [ustar],, [pax],,
1127 [m4_fatal([Unknown tar format])])
1128AC_MSG_CHECKING([how to create a $1 tar archive])
1129# Loop over all known methods to create a tar archive until one works.
1130_am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none'
1131_am_tools=${am_cv_prog_tar_$1-$_am_tools}
1132# Do not fold the above two line into one, because Tru64 sh and
1133# Solaris sh will not grok spaces in the rhs of `-'.
1134for _am_tool in $_am_tools
1135do
1136 case $_am_tool in
1137 gnutar)
1138 for _am_tar in tar gnutar gtar;
1139 do
1140 AM_RUN_LOG([$_am_tar --version]) && break
1141 done
1142 am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"'
1143 am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"'
1144 am__untar="$_am_tar -xf -"
1145 ;;
1146 plaintar)
1147 # Must skip GNU tar: if it does not support --format= it doesn't create
1148 # ustar tarball either.
1149 (tar --version) >/dev/null 2>&1 && continue
1150 am__tar='tar chf - "$$tardir"'
1151 am__tar_='tar chf - "$tardir"'
1152 am__untar='tar xf -'
1153 ;;
1154 pax)
1155 am__tar='pax -L -x $1 -w "$$tardir"'
1156 am__tar_='pax -L -x $1 -w "$tardir"'
1157 am__untar='pax -r'
1158 ;;
1159 cpio)
1160 am__tar='find "$$tardir" -print | cpio -o -H $1 -L'
1161 am__tar_='find "$tardir" -print | cpio -o -H $1 -L'
1162 am__untar='cpio -i -H $1 -d'
1163 ;;
1164 none)
1165 am__tar=false
1166 am__tar_=false
1167 am__untar=false
1168 ;;
1169 esac
1170
1171 # If the value was cached, stop now. We just wanted to have am__tar
1172 # and am__untar set.
1173 test -n "${am_cv_prog_tar_$1}" && break
1174
1175 # tar/untar a dummy directory, and stop if the command works
1176 rm -rf conftest.dir
1177 mkdir conftest.dir
1178 echo GrepMe > conftest.dir/file
1179 AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar])
1180 rm -rf conftest.dir
1181 if test -s conftest.tar; then
1182 AM_RUN_LOG([$am__untar <conftest.tar])
1183 grep GrepMe conftest.dir/file >/dev/null 2>&1 && break
1184 fi
1185done
1186rm -rf conftest.dir
1187
1188AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool])
1189AC_MSG_RESULT([$am_cv_prog_tar_$1])])
1190AC_SUBST([am__tar])
1191AC_SUBST([am__untar])
1192]) # _AM_PROG_TAR
1193
1194m4_include([m4/libtool.m4])
1195m4_include([m4/ltoptions.m4])
1196m4_include([m4/ltsugar.m4])
1197m4_include([m4/ltversion.m4])
1198m4_include([m4/lt~obsolete.m4])
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