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Presently that only means defining a flag for this option. 660 AC_DEFUN([_AM_SET_OPTION], 661 [m4_define(_AM_MANGLE_OPTION([$1]), 1)]) 662 663 # _AM_SET_OPTIONS(OPTIONS) 664 # ---------------------------------- 665 # OPTIONS is a space-separated list of Automake options. 666 AC_DEFUN([_AM_SET_OPTIONS], 667 [AC_FOREACH([_AM_Option], [$1], [_AM_SET_OPTION(_AM_Option)])]) 668 669 # _AM_IF_OPTION(OPTION, IF-SET, [IF-NOT-SET]) 670 # ------------------------------------------- 671 # Execute IF-SET if OPTION is set, IF-NOT-SET otherwise. 672 AC_DEFUN([_AM_IF_OPTION], 673 [m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])]) 674 675 # Check to make sure that the build environment is sane. -*- Autoconf -*- 676 677 # Copyright (C) 1996, 1997, 2000, 2001, 2003, 2005 678 # Free Software Foundation, Inc. 679 # 680 # This file is free software; the Free Software Foundation 681 # gives unlimited permission to copy and/or distribute it, 682 # with or without modifications, as long as this notice is preserved. 683 684 # serial 4 685 686 # AM_SANITY_CHECK 687 # --------------- 688 AC_DEFUN([AM_SANITY_CHECK], 689 [AC_MSG_CHECKING([whether build environment is sane]) 690 # Just in case 691 sleep 1 692 echo timestamp > conftest.file 693 # Do `set' in a subshell so we don't clobber the current shell's 694 # arguments. Must try -L first in case configure is actually a 695 # symlink; some systems play weird games with the mod time of symlinks 696 # (eg FreeBSD returns the mod time of the symlink's containing 697 # directory). 698 if ( 699 set X `ls -Lt $srcdir/configure conftest.file 2> /dev/null` 700 if test "$[*]" = "X"; then 701 # -L didn't work. 702 set X `ls -t $srcdir/configure conftest.file` 703 fi 704 rm -f conftest.file 705 if test "$[*]" != "X $srcdir/configure conftest.file" \ 706 && test "$[*]" != "X conftest.file $srcdir/configure"; then 707 708 # If neither matched, then we have a broken ls. This can happen 709 # if, for instance, CONFIG_SHELL is bash and it inherits a 710 # broken ls alias from the environment. This has actually 711 # happened. Such a system could not be considered "sane". 712 AC_MSG_ERROR([ls -t appears to fail. Make sure there is not a broken 713 alias in your environment]) 714 fi 715 716 test "$[2]" = conftest.file 717 ) 718 then 719 # Ok. 720 : 721 else 722 AC_MSG_ERROR([newly created file is older than distributed files! 723 Check your system clock]) 724 fi 725 AC_MSG_RESULT(yes)]) 726 727 # Copyright (C) 2001, 2003, 2005 Free Software Foundation, Inc. 728 # 729 # This file is free software; the Free Software Foundation 730 # gives unlimited permission to copy and/or distribute it, 731 # with or without modifications, as long as this notice is preserved. 732 733 # AM_PROG_INSTALL_STRIP 734 # --------------------- 735 # One issue with vendor `install' (even GNU) is that you can't 736 # specify the program used to strip binaries. This is especially 737 # annoying in cross-compiling environments, where the build's strip 738 # is unlikely to handle the host's binaries. 739 # Fortunately install-sh will honor a STRIPPROG variable, so we 740 # always use install-sh in `make install-strip', and initialize 741 # STRIPPROG with the value of the STRIP variable (set by the user). 742 AC_DEFUN([AM_PROG_INSTALL_STRIP], 743 [AC_REQUIRE([AM_PROG_INSTALL_SH])dnl 744 # Installed binaries are usually stripped using `strip' when the user 745 # run `make install-strip'. However `strip' might not be the right 746 # tool to use in cross-compilation environments, therefore Automake 747 # will honor the `STRIP' environment variable to overrule this program. 748 dnl Don't test for $cross_compiling = yes, because it might be `maybe'. 749 if test "$cross_compiling" != no; then 750 AC_CHECK_TOOL([STRIP], [strip], :) 751 fi 752 INSTALL_STRIP_PROGRAM="\${SHELL} \$(install_sh) -c -s" 753 AC_SUBST([INSTALL_STRIP_PROGRAM])]) 754 755 # Check how to create a tarball. -*- Autoconf -*- 756 757 # Copyright (C) 2004, 2005 Free Software Foundation, Inc. 758 # 759 # This file is free software; the Free Software Foundation 760 # gives unlimited permission to copy and/or distribute it, 761 # with or without modifications, as long as this notice is preserved. 762 763 # serial 2 764 765 # _AM_PROG_TAR(FORMAT) 766 # -------------------- 767 # Check how to create a tarball in format FORMAT. 768 # FORMAT should be one of `v7', `ustar', or `pax'. 769 # 770 # Substitute a variable $(am__tar) that is a command 771 # writing to stdout a FORMAT-tarball containing the directory 772 # $tardir. 773 # tardir=directory && $(am__tar) > result.tar 774 # 775 # Substitute a variable $(am__untar) that extract such 776 # a tarball read from stdin. 777 # $(am__untar) < result.tar 778 AC_DEFUN([_AM_PROG_TAR], 779 [# Always define AMTAR for backward compatibility. 780 AM_MISSING_PROG([AMTAR], [tar]) 781 m4_if([$1], [v7], 782 [am__tar='${AMTAR} chof - "$$tardir"'; am__untar='${AMTAR} xf -'], 783 [m4_case([$1], [ustar],, [pax],, 784 [m4_fatal([Unknown tar format])]) 785 AC_MSG_CHECKING([how to create a $1 tar archive]) 786 # Loop over all known methods to create a tar archive until one works. 787 _am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none' 788 _am_tools=${am_cv_prog_tar_$1-$_am_tools} 789 # Do not fold the above two line into one, because Tru64 sh and 790 # Solaris sh will not grok spaces in the rhs of `-'. 791 for _am_tool in $_am_tools 792 do 793 case $_am_tool in 794 gnutar) 795 for _am_tar in tar gnutar gtar; 796 do 797 AM_RUN_LOG([$_am_tar --version]) && break 798 done 799 am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"' 800 am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"' 801 am__untar="$_am_tar -xf -" 802 ;; 803 plaintar) 804 # Must skip GNU tar: if it does not support --format= it doesn't create 805 # ustar tarball either. 806 (tar --version) >/dev/null 2>&1 && continue 807 am__tar='tar chf - "$$tardir"' 808 am__tar_='tar chf - "$tardir"' 809 am__untar='tar xf -' 810 ;; 811 pax) 812 am__tar='pax -L -x $1 -w "$$tardir"' 813 am__tar_='pax -L -x $1 -w "$tardir"' 814 am__untar='pax -r' 815 ;; 816 cpio) 817 am__tar='find "$$tardir" -print | cpio -o -H $1 -L' 818 am__tar_='find "$tardir" -print | cpio -o -H $1 -L' 819 am__untar='cpio -i -H $1 -d' 820 ;; 821 none) 822 am__tar=false 823 am__tar_=false 824 am__untar=false 825 ;; 826 esac 827 828 # If the value was cached, stop now. We just wanted to have am__tar 829 # and am__untar set. 830 test -n "${am_cv_prog_tar_$1}" && break 831 832 # tar/untar a dummy directory, and stop if the command works 833 rm -rf conftest.dir 834 mkdir conftest.dir 835 echo GrepMe > conftest.dir/file 836 AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar]) 837 rm -rf conftest.dir 838 if test -s conftest.tar; then 839 AM_RUN_LOG([$am__untar <conftest.tar]) 840 grep GrepMe conftest.dir/file >/dev/null 2>&1 && break 841 fi 842 done 843 rm -rf conftest.dir 844 845 AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool]) 846 AC_MSG_RESULT([$am_cv_prog_tar_$1])]) 847 AC_SUBST([am__tar]) 848 AC_SUBST([am__untar]) 849 ]) # _AM_PROG_TAR 850 851
