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There are at least two reasons why we must not 662 # use `-m 0755': 663 # - it causes special bits like SGID to be ignored, 664 # - it may be too restrictive (some setups expect 775 directories). 665 # 666 # Do not use -m 0755 and let people choose whatever they expect by 667 # setting umask. 668 # 669 # We cannot accept any implementation of `mkdir' that recognizes `-p'. 670 # Some implementations (such as Solaris 8's) are not thread-safe: if a 671 # parallel make tries to run `mkdir -p a/b' and `mkdir -p a/c' 672 # concurrently, both version can detect that a/ is missing, but only 673 # one can create it and the other will error out. Consequently we 674 # restrict ourselves to GNU make (using the --version option ensures 675 # this.) 676 AC_DEFUN([AM_PROG_MKDIR_P], 677 [if mkdir -p --version . >/dev/null 2>&1 && test ! -d ./--version; then 678 # We used to keeping the `.' as first argument, in order to 679 # allow $(mkdir_p) to be used without argument. As in 680 # $(mkdir_p) $(somedir) 681 # where $(somedir) is conditionally defined. However this is wrong 682 # for two reasons: 683 # 1. if the package is installed by a user who cannot write `.' 684 # make install will fail, 685 # 2. the above comment should most certainly read 686 # $(mkdir_p) $(DESTDIR)$(somedir) 687 # so it does not work when $(somedir) is undefined and 688 # $(DESTDIR) is not. 689 # To support the latter case, we have to write 690 # test -z "$(somedir)" || $(mkdir_p) $(DESTDIR)$(somedir), 691 # so the `.' trick is pointless. 692 mkdir_p='mkdir -p --' 693 else 694 # On NextStep and OpenStep, the `mkdir' command does not 695 # recognize any option. It will interpret all options as 696 # directories to create, and then abort because `.' already 697 # exists. 698 for d in ./-p ./--version; 699 do 700 test -d $d && rmdir $d 701 done 702 # $(mkinstalldirs) is defined by Automake if mkinstalldirs exists. 703 if test -f "$ac_aux_dir/mkinstalldirs"; then 704 mkdir_p='$(mkinstalldirs)' 705 else 706 mkdir_p='$(install_sh) -d' 707 fi 708 fi 709 AC_SUBST([mkdir_p])]) 710 711 # Helper functions for option handling. -*- Autoconf -*- 712 713 # Copyright (C) 2001, 2002, 2003, 2005 Free Software Foundation, Inc. 714 # 715 # This file is free software; the Free Software Foundation 716 # gives unlimited permission to copy and/or distribute it, 717 # with or without modifications, as long as this notice is preserved. 718 719 # serial 3 720 721 # _AM_MANGLE_OPTION(NAME) 722 # ----------------------- 723 AC_DEFUN([_AM_MANGLE_OPTION], 724 [[_AM_OPTION_]m4_bpatsubst($1, [[^a-zA-Z0-9_]], [_])]) 725 726 # _AM_SET_OPTION(NAME) 727 # ------------------------------ 728 # Set option NAME. Presently that only means defining a flag for this option. 729 AC_DEFUN([_AM_SET_OPTION], 730 [m4_define(_AM_MANGLE_OPTION([$1]), 1)]) 731 732 # _AM_SET_OPTIONS(OPTIONS) 733 # ---------------------------------- 734 # OPTIONS is a space-separated list of Automake options. 735 AC_DEFUN([_AM_SET_OPTIONS], 736 [AC_FOREACH([_AM_Option], [$1], [_AM_SET_OPTION(_AM_Option)])]) 737 738 # _AM_IF_OPTION(OPTION, IF-SET, [IF-NOT-SET]) 739 # ------------------------------------------- 740 # Execute IF-SET if OPTION is set, IF-NOT-SET otherwise. 741 AC_DEFUN([_AM_IF_OPTION], 742 [m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])]) 743 744 # Check to make sure that the build environment is sane. -*- Autoconf -*- 745 746 # Copyright (C) 1996, 1997, 2000, 2001, 2003, 2005 747 # Free Software Foundation, Inc. 748 # 749 # This file is free software; the Free Software Foundation 750 # gives unlimited permission to copy and/or distribute it, 751 # with or without modifications, as long as this notice is preserved. 752 753 # serial 4 754 755 # AM_SANITY_CHECK 756 # --------------- 757 AC_DEFUN([AM_SANITY_CHECK], 758 [AC_MSG_CHECKING([whether build environment is sane]) 759 # Just in case 760 sleep 1 761 echo timestamp > conftest.file 762 # Do `set' in a subshell so we don't clobber the current shell's 763 # arguments. Must try -L first in case configure is actually a 764 # symlink; some systems play weird games with the mod time of symlinks 765 # (eg FreeBSD returns the mod time of the symlink's containing 766 # directory). 767 if ( 768 set X `ls -Lt $srcdir/configure conftest.file 2> /dev/null` 769 if test "$[*]" = "X"; then 770 # -L didn't work. 771 set X `ls -t $srcdir/configure conftest.file` 772 fi 773 rm -f conftest.file 774 if test "$[*]" != "X $srcdir/configure conftest.file" \ 775 && test "$[*]" != "X conftest.file $srcdir/configure"; then 776 777 # If neither matched, then we have a broken ls. This can happen 778 # if, for instance, CONFIG_SHELL is bash and it inherits a 779 # broken ls alias from the environment. This has actually 780 # happened. Such a system could not be considered "sane". 781 AC_MSG_ERROR([ls -t appears to fail. Make sure there is not a broken 782 alias in your environment]) 783 fi 784 785 test "$[2]" = conftest.file 786 ) 787 then 788 # Ok. 789 : 790 else 791 AC_MSG_ERROR([newly created file is older than distributed files! 792 Check your system clock]) 793 fi 794 AC_MSG_RESULT(yes)]) 795 796 # Copyright (C) 2001, 2003, 2005 Free Software Foundation, Inc. 797 # 798 # This file is free software; the Free Software Foundation 799 # gives unlimited permission to copy and/or distribute it, 800 # with or without modifications, as long as this notice is preserved. 801 802 # AM_PROG_INSTALL_STRIP 803 # --------------------- 804 # One issue with vendor `install' (even GNU) is that you can't 805 # specify the program used to strip binaries. This is especially 806 # annoying in cross-compiling environments, where the build's strip 807 # is unlikely to handle the host's binaries. 808 # Fortunately install-sh will honor a STRIPPROG variable, so we 809 # always use install-sh in `make install-strip', and initialize 810 # STRIPPROG with the value of the STRIP variable (set by the user). 811 AC_DEFUN([AM_PROG_INSTALL_STRIP], 812 [AC_REQUIRE([AM_PROG_INSTALL_SH])dnl 813 # Installed binaries are usually stripped using `strip' when the user 814 # run `make install-strip'. However `strip' might not be the right 815 # tool to use in cross-compilation environments, therefore Automake 816 # will honor the `STRIP' environment variable to overrule this program. 817 dnl Don't test for $cross_compiling = yes, because it might be `maybe'. 818 if test "$cross_compiling" != no; then 819 AC_CHECK_TOOL([STRIP], [strip], :) 820 fi 821 INSTALL_STRIP_PROGRAM="\${SHELL} \$(install_sh) -c -s" 822 AC_SUBST([INSTALL_STRIP_PROGRAM])]) 823 824 # Check how to create a tarball. -*- Autoconf -*- 825 826 # Copyright (C) 2004, 2005 Free Software Foundation, Inc. 827 # 828 # This file is free software; the Free Software Foundation 829 # gives unlimited permission to copy and/or distribute it, 830 # with or without modifications, as long as this notice is preserved. 831 832 # serial 2 833 834 # _AM_PROG_TAR(FORMAT) 835 # -------------------- 836 # Check how to create a tarball in format FORMAT. 837 # FORMAT should be one of `v7', `ustar', or `pax'. 838 # 839 # Substitute a variable $(am__tar) that is a command 840 # writing to stdout a FORMAT-tarball containing the directory 841 # $tardir. 842 # tardir=directory && $(am__tar) > result.tar 843 # 844 # Substitute a variable $(am__untar) that extract such 845 # a tarball read from stdin. 846 # $(am__untar) < result.tar 847 AC_DEFUN([_AM_PROG_TAR], 848 [# Always define AMTAR for backward compatibility. 849 AM_MISSING_PROG([AMTAR], [tar]) 850 m4_if([$1], [v7], 851 [am__tar='${AMTAR} chof - "$$tardir"'; am__untar='${AMTAR} xf -'], 852 [m4_case([$1], [ustar],, [pax],, 853 [m4_fatal([Unknown tar format])]) 854 AC_MSG_CHECKING([how to create a $1 tar archive]) 855 # Loop over all known methods to create a tar archive until one works. 856 _am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none' 857 _am_tools=${am_cv_prog_tar_$1-$_am_tools} 858 # Do not fold the above two line into one, because Tru64 sh and 859 # Solaris sh will not grok spaces in the rhs of `-'. 860 for _am_tool in $_am_tools 861 do 862 case $_am_tool in 863 gnutar) 864 for _am_tar in tar gnutar gtar; 865 do 866 AM_RUN_LOG([$_am_tar --version]) && break 867 done 868 am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"' 869 am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"' 870 am__untar="$_am_tar -xf -" 871 ;; 872 plaintar) 873 # Must skip GNU tar: if it does not support --format= it doesn't create 874 # ustar tarball either. 875 (tar --version) >/dev/null 2>&1 && continue 876 am__tar='tar chf - "$$tardir"' 877 am__tar_='tar chf - "$tardir"' 878 am__untar='tar xf -' 879 ;; 880 pax) 881 am__tar='pax -L -x $1 -w "$$tardir"' 882 am__tar_='pax -L -x $1 -w "$tardir"' 883 am__untar='pax -r' 884 ;; 885 cpio) 886 am__tar='find "$$tardir" -print | cpio -o -H $1 -L' 887 am__tar_='find "$tardir" -print | cpio -o -H $1 -L' 888 am__untar='cpio -i -H $1 -d' 889 ;; 890 none) 891 am__tar=false 892 am__tar_=false 893 am__untar=false 894 ;; 895 esac 896 897 # If the value was cached, stop now. We just wanted to have am__tar 898 # and am__untar set. 899 test -n "${am_cv_prog_tar_$1}" && break 900 901 # tar/untar a dummy directory, and stop if the command works 902 rm -rf conftest.dir 903 mkdir conftest.dir 904 echo GrepMe > conftest.dir/file 905 AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar]) 906 rm -rf conftest.dir 907 if test -s conftest.tar; then 908 AM_RUN_LOG([$am__untar <conftest.tar]) 909 grep GrepMe conftest.dir/file >/dev/null 2>&1 && break 910 fi 911 done 912 rm -rf conftest.dir 913 914 AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool]) 915 AC_MSG_RESULT([$am_cv_prog_tar_$1])]) 916 AC_SUBST([am__tar]) 917 AC_SUBST([am__untar]) 918 ]) # _AM_PROG_TAR 919 920 m4_include([m4/cares-compilers.m4]) 921 m4_include([m4/cares-confopts.m4]) 922 m4_include([m4/cares-functions.m4]) 923 m4_include([m4/cares-override.m4]) 924 m4_include([m4/cares-reentrant.m4]) 925 m4_include([m4/cares-system.m4]) 926 m4_include([m4/libtool.m4]) 927 m4_include([m4/ltoptions.m4]) 928 m4_include([m4/ltsugar.m4]) 929 m4_include([m4/ltversion.m4]) 930 m4_include([m4/lt~obsolete.m4]) 931 m4_include([m4/xc-translit.m4]) 932 m4_include([acinclude.m4]) 933
