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599 # We cannot accept any implementation of `mkdir' that recognizes `-p'.

600 # Some implementations (such as Solaris 8's) are not thread-safe: if a

601 # parallel make tries to run `mkdir -p a/b' and `mkdir -p a/c'

602 # concurrently, both version can detect that a/ is missing, but only

603 # one can create it and the other will error out. Consequently we

604 # restrict ourselves to GNU make (using the --version option ensures

605 # this.)

606 AC_DEFUN([AM_PROG_MKDIR_P],

607 [if mkdir -p --version . >/dev/null 2>&1 && test ! -d ./--version; then

608 # We used to keeping the `.' as first argument, in order to

609 # allow $(mkdir_p) to be used without argument. As in

610 # $(mkdir_p) $(somedir)

611 # where $(somedir) is conditionally defined. However this is wrong

612 # for two reasons:

613 # 1. if the package is installed by a user who cannot write `.'

614 # make install will fail,

615 # 2. the above comment should most certainly read

616 # $(mkdir_p) $(DESTDIR)$(somedir)

617 # so it does not work when $(somedir) is undefined and

618 # $(DESTDIR) is not.

619 # To support the latter case, we have to write

620 # test -z "$(somedir)" || $(mkdir_p) $(DESTDIR)$(somedir),

621 # so the `.' trick is pointless.

622 mkdir_p='mkdir -p --'

623 else

624 # On NextStep and OpenStep, the `mkdir' command does not

625 # recognize any option. It will interpret all options as

626 # directories to create, and then abort because `.' already

627 # exists.

628 for d in ./-p ./--version;

629 do

630 test -d $d && rmdir $d

631 done

632 # $(mkinstalldirs) is defined by Automake if mkinstalldirs exists.

633 if test -f "$ac_aux_dir/mkinstalldirs"; then

634 mkdir_p='$(mkinstalldirs)'

635 else

636 mkdir_p='$(SHELL) $(install_sh) -d'

637 fi

638 fi

639 AC_SUBST([mkdir_p])])

640

641 # Helper functions for option handling. -*- Autoconf -*-

642

644 #

645 # This file is free software; the Free Software Foundation

646 # gives unlimited permission to copy and/or distribute it,

647 # with or without modifications, as long as this notice is preserved.

648

649 # serial 3

650

651 # _AM_MANGLE_OPTION(NAME)

652 # -----------------------

653 AC_DEFUN([_AM_MANGLE_OPTION],

654 [[_AM_OPTION_]m4_bpatsubst($1, [[^a-zA-Z0-9_]], [_])])

655

656 # _AM_SET_OPTION(NAME)

657 # ------------------------------

658 # Set option NAME. Presently that only means defining a flag for this option.

659 AC_DEFUN([_AM_SET_OPTION],

660 [m4_define(_AM_MANGLE_OPTION([$1]), 1)])

661

662 # _AM_SET_OPTIONS(OPTIONS)

663 # ----------------------------------

664 # OPTIONS is a space-separated list of Automake options.

665 AC_DEFUN([_AM_SET_OPTIONS],

666 [AC_FOREACH([_AM_Option], [$1], [_AM_SET_OPTION(_AM_Option)])])

667

668 # _AM_IF_OPTION(OPTION, IF-SET, [IF-NOT-SET])

669 # -------------------------------------------

670 # Execute IF-SET if OPTION is set, IF-NOT-SET otherwise.

671 AC_DEFUN([_AM_IF_OPTION],

672 [m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])])

673

675 #

676 # This file is free software; the Free Software Foundation

677 # gives unlimited permission to copy and/or distribute it,

678 # with or without modifications, as long as this notice is preserved.

679

680 # AM_PROG_INSTALL_STRIP

681 # ---------------------

682 # One issue with vendor `install' (even GNU) is that you can't

683 # specify the program used to strip binaries. This is especially

684 # annoying in cross-compiling environments, where the build's strip

685 # is unlikely to handle the host's binaries.

686 # Fortunately install-sh will honor a STRIPPROG variable, so we

687 # always use install-sh in `make install-strip', and initialize

688 # STRIPPROG with the value of the STRIP variable (set by the user).

689 AC_DEFUN([AM_PROG_INSTALL_STRIP],

690 [AC_REQUIRE([AM_PROG_INSTALL_SH])dnl

691 # Installed binaries are usually stripped using `strip' when the user

692 # run `make install-strip'. However `strip' might not be the right

693 # tool to use in cross-compilation environments, therefore Automake

694 # will honor the `STRIP' environment variable to overrule this program.

695 dnl Don't test for $cross_compiling = yes, because it might be `maybe'.

696 if test "$cross_compiling" != no; then

697 AC_CHECK_TOOL([STRIP], [strip], :)

698 fi

699 INSTALL_STRIP_PROGRAM="\${SHELL} \$(install_sh) -c -s"

700 AC_SUBST([INSTALL_STRIP_PROGRAM])])

701

702 # Check how to create a tarball. -*- Autoconf -*-

703

705 #

706 # This file is free software; the Free Software Foundation

707 # gives unlimited permission to copy and/or distribute it,

708 # with or without modifications, as long as this notice is preserved.

709

710 # serial 2

711

712 # _AM_PROG_TAR(FORMAT)

713 # --------------------

714 # Check how to create a tarball in format FORMAT.

715 # FORMAT should be one of `v7', `ustar', or `pax'.

716 #

717 # Substitute a variable $(am__tar) that is a command

718 # writing to stdout a FORMAT-tarball containing the directory

719 # $tardir.

720 # tardir=directory && $(am__tar) > result.tar

721 #

722 # Substitute a variable $(am__untar) that extract such

723 # a tarball read from stdin.

724 # $(am__untar) < result.tar

725 AC_DEFUN([_AM_PROG_TAR],

726 [# Always define AMTAR for backward compatibility.

727 AM_MISSING_PROG([AMTAR], [tar])

728 m4_if([$1], [v7],

729 [am__tar='${AMTAR} chof - "$tardir"'; am__untar='${AMTAR} xf -'],

730 [m4_case([$1], [ustar],, [pax],,

731 [m4_fatal([Unknown tar format])])

732 AC_MSG_CHECKING([how to create a $1 tar archive])

733 # Loop over all known methods to create a tar archive until one works.

734 _am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none'

735 _am_tools=${am_cv_prog_tar_$1-$_am_tools}

736 # Do not fold the above two line into one, because Tru64 sh and

737 # Solaris sh will not grok spaces in the rhs of `-'.

738 for _am_tool in $_am_tools

739 do

740 case $_am_tool in

741 gnutar)

742 for _am_tar in tar gnutar gtar;

743 do

744 AM_RUN_LOG([$_am_tar --version]) && break

745 done

746 am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"'

747 am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"'

748 am__untar="$_am_tar -xf -"

749 ;;

750 plaintar)

751 # Must skip GNU tar: if it does not support --format= it doesn't create

752 # ustar tarball either.

753 (tar --version) >/dev/null 2>&1 && continue

754 am__tar='tar chf - "$tardir"'

755 am__tar_='tar chf - "$tardir"'

756 am__untar='tar xf -'

757 ;;

758 pax)

759 am__tar='pax -L -x $1 -w "$tardir"'

760 am__tar_='pax -L -x $1 -w "$tardir"'

761 am__untar='pax -r'

762 ;;

763 cpio)

764 am__tar='find "$tardir" -print | cpio -o -H $1 -L'

765 am__tar_='find "$tardir" -print | cpio -o -H $1 -L'

766 am__untar='cpio -i -H $1 -d'

767 ;;

768 none)

769 am__tar=false

770 am__tar_=false

771 am__untar=false

772 ;;

773 esac

774

775 # If the value was cached, stop now. We just wanted to have am__tar

776 # and am__untar set.

777 test -n "${am_cv_prog_tar_$1}" && break

778

779 # tar/untar a dummy directory, and stop if the command works

780 rm -rf conftest.dir

781 mkdir conftest.dir

782 echo GrepMe > conftest.dir/file

783 AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar])

784 rm -rf conftest.dir

785 if test -s conftest.tar; then

786 AM_RUN_LOG([$am__untar <conftest.tar])

787 grep GrepMe conftest.dir/file >/dev/null 2>&1 && break

788 fi

789 done

790 rm -rf conftest.dir

791

792 AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool])

793 AC_MSG_RESULT([$am_cv_prog_tar_$1])])

794 AC_SUBST([am__tar])

795 AC_SUBST([am__untar])

796 ]) # _AM_PROG_TAR

797

798