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3 # Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
4 # 2005, 2006 Free Software Foundation, Inc.
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.
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642 # Helper functions for option handling. -*- Autoconf -*-
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646 # This file is free software; the Free Software Foundation
647 # gives unlimited permission to copy and/or distribute it,
648 # with or without modifications, as long as this notice is preserved.
652 # _AM_MANGLE_OPTION(NAME)
653 # -----------------------
654 AC_DEFUN([_AM_MANGLE_OPTION],
655 [[_AM_OPTION_]m4_bpatsubst($1, [[^a-zA-Z0-9_]], [_])])
657 # _AM_SET_OPTION(NAME)
658 # ------------------------------
659 # Set option NAME. Presently that only means defining a flag for this option.
660 AC_DEFUN([_AM_SET_OPTION],
661 [m4_define(_AM_MANGLE_OPTION([$1]), 1)])
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)])])
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])])
675 # Check to make sure that the build environment is sane. -*- Autoconf -*-
677 # Copyright (C) 1996, 1997, 2000, 2001, 2003, 2005
678 # Free Software Foundation, Inc.
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.
688 AC_DEFUN([AM_SANITY_CHECK],
689 [AC_MSG_CHECKING([whether build environment is sane])
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
699 set X `ls -Lt $srcdir/configure conftest.file 2> /dev/null`
700 if test "$[*]" = "X"; then
702 set X `ls -t $srcdir/configure conftest.file`
705 if test "$[*]" != "X $srcdir/configure conftest.file" \
706 && test "$[*]" != "X conftest.file $srcdir/configure"; then
708 # If neither matched, then we have a broken ls. This can happen
709 # if, for instance, CONFIG_SHELL is bash and it inherits a
710 # broken ls alias from the environment. This has actually
711 # happened. Such a system could not be considered "sane".
712 AC_MSG_ERROR([ls -t appears to fail. Make sure there is not a broken
713 alias in your environment])
716 test "$[2]" = conftest.file
722 AC_MSG_ERROR([newly created file is older than distributed files!
723 Check your system clock])
727 # Copyright (C) 2001, 2003, 2005 Free Software Foundation, Inc.
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.
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], :)
752 INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
753 AC_SUBST([INSTALL_STRIP_PROGRAM])])
755 # Copyright (C) 2006 Free Software Foundation, Inc.
757 # This file is free software; the Free Software Foundation
758 # gives unlimited permission to copy and/or distribute it,
759 # with or without modifications, as long as this notice is preserved.
761 # _AM_SUBST_NOTMAKE(VARIABLE)
762 # ---------------------------
763 # Prevent Automake from outputing VARIABLE = @VARIABLE@ in Makefile.in.
764 # This macro is traced by Automake.
765 AC_DEFUN([_AM_SUBST_NOTMAKE])
767 # Check how to create a tarball. -*- Autoconf -*-
769 # Copyright (C) 2004, 2005 Free Software Foundation, Inc.
771 # This file is free software; the Free Software Foundation
772 # gives unlimited permission to copy and/or distribute it,
773 # with or without modifications, as long as this notice is preserved.
777 # _AM_PROG_TAR(FORMAT)
778 # --------------------
779 # Check how to create a tarball in format FORMAT.
780 # FORMAT should be one of `v7', `ustar', or `pax'.
782 # Substitute a variable $(am__tar) that is a command
783 # writing to stdout a FORMAT-tarball containing the directory
785 # tardir=directory && $(am__tar) > result.tar
787 # Substitute a variable $(am__untar) that extract such
788 # a tarball read from stdin.
789 # $(am__untar) < result.tar
790 AC_DEFUN([_AM_PROG_TAR],
791 [# Always define AMTAR for backward compatibility.
792 AM_MISSING_PROG([AMTAR], [tar])
794 [am__tar='${AMTAR} chof - "$$tardir"'; am__untar='${AMTAR} xf -'],
795 [m4_case([$1], [ustar],, [pax],,
796 [m4_fatal([Unknown tar format])])
797 AC_MSG_CHECKING([how to create a $1 tar archive])
798 # Loop over all known methods to create a tar archive until one works.
799 _am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none'
800 _am_tools=${am_cv_prog_tar_$1-$_am_tools}
801 # Do not fold the above two line into one, because Tru64 sh and
802 # Solaris sh will not grok spaces in the rhs of `-'.
803 for _am_tool in $_am_tools
807 for _am_tar in tar gnutar gtar;
809 AM_RUN_LOG([$_am_tar --version]) && break
811 am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"'
812 am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"'
813 am__untar="$_am_tar -xf -"
816 # Must skip GNU tar: if it does not support --format= it doesn't create
817 # ustar tarball either.
818 (tar --version) >/dev/null 2>&1 && continue
819 am__tar='tar chf - "$$tardir"'
820 am__tar_='tar chf - "$tardir"'
824 am__tar='pax -L -x $1 -w "$$tardir"'
825 am__tar_='pax -L -x $1 -w "$tardir"'
829 am__tar='find "$$tardir" -print | cpio -o -H $1 -L'
830 am__tar_='find "$tardir" -print | cpio -o -H $1 -L'
831 am__untar='cpio -i -H $1 -d'
840 # If the value was cached, stop now. We just wanted to have am__tar
842 test -n "${am_cv_prog_tar_$1}" && break
844 # tar/untar a dummy directory, and stop if the command works
847 echo GrepMe > conftest.dir/file
848 AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar])
850 if test -s conftest.tar; then
851 AM_RUN_LOG([$am__untar <conftest.tar])
852 grep GrepMe conftest.dir/file >/dev/null 2>&1 && break
857 AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool])
858 AC_MSG_RESULT([$am_cv_prog_tar_$1])])
860 AC_SUBST([am__untar])
863 m4_include([m4/snprintf.m4])