ubuntu的停止支持是什么意思

8.04下编译sane-backends.
执行./autoconf。显示如下：
lifeng@lif:~/codes/sane-backends/sane-backends-1.0.22$ autoreconf
configure.in:511: warning: LTOPTIONS_VERSION is m4_require'd but not m4_defun'd
m4/libtool.m4:69: LT_INIT is expanded from...
m4/libtool.m4:107: AC_PROG_LIBTOOL is expanded from...
configure.in:511: the top level
configure.in:511: warning: LTSUGAR_VERSION is m4_require'd but not m4_defun'd
configure.in:511: warning: LTVERSION_VERSION is m4_require'd but not m4_defun'd
configure.in:511: warning: LTOBSOLETE_VERSION is m4_require'd but not m4_defun'd
configure.in:511: warning: LTOPTIONS_VERSION is m4_require'd but not m4_defun'd
m4/libtool.m4:69: LT_INIT is expanded from...
m4/libtool.m4:107: AC_PROG_LIBTOOL is expanded from...
configure.in:511: the top level
configure.in:511: warning: LTSUGAR_VERSION is m4_require'd but not m4_defun'd
configure.in:511: warning: LTVERSION_VERSION is m4_require'd but not m4_defun'd
configure.in:511: warning: LTOBSOLETE_VERSION is m4_require'd but not m4_defun'd
configure.in:511: warning: LTOPTIONS_VERSION is m4_require'd but not m4_defun'd
m4/libtool.m4:69: LT_INIT is expanded from...
m4/libtool.m4:107: AC_PROG_LIBTOOL is expanded from...
configure.in:511: the top level
configure.in:511: warning: LTSUGAR_VERSION is m4_require'd but not m4_defun'd
configure.in:511: warning: LTVERSION_VERSION is m4_require'd but not m4_defun'd
configure.in:511: warning: LTOBSOLETE_VERSION is m4_require'd but not m4_defun'd
configure.in:511: warning: LTOPTIONS_VERSION is m4_require'd but not m4_defun'd
m4/libtool.m4:69: LT_INIT is expanded from...
m4/libtool.m4:107: AC_PROG_LIBTOOL is expanded from...
configure.in:511: the top level
configure.in:511: warning: LTSUGAR_VERSION is m4_require'd but not m4_defun'd
configure.in:511: warning: LTVERSION_VERSION is m4_require'd but not m4_defun'd
configure.in:511: warning: LTOBSOLETE_VERSION is m4_require'd but not m4_defun'd
configure.in:511: warning: LTOPTIONS_VERSION is m4_require'd but not m4_defun'd
m4/libtool.m4:69: LT_INIT is expanded from...
m4/libtool.m4:107: AC_PROG_LIBTOOL is expanded from...
configure.in:511: the top level
configure.in:511: warning: LTSUGAR_VERSION is m4_require'd but not m4_defun'd
configure.in:511: warning: LTVERSION_VERSION is m4_require'd but not m4_defun'd
configure.in:511: warning: LTOBSOLETE_VERSION is m4_require'd but not m4_defun'd
一些宏找不到，参照网上解决方法
cat /usr/share/aclocal/ltoptions.m4 /usr/share/aclocal/ltversion.m4 /usr/share/aclocal/ltsugar.m4 /usr/share/aclocal/lt~obsolete.m4 >>aclocal.m4
但是我的系统里/usr/share/aclocal下没有上面的4个文件。
郁闷中，希望有类似情况或者明白真相的人们能给予帮助

8.04下编译sane-backends.
执行./autoconf。显示如下：
lifeng@lif:~/codes/sane-backends/sane-backends-1.0.22$ autoreconf
configure.in:511: warning: LTOPTIONS_VERSION is m4_require'd but not m4_defun'd
m4/libtool.m4:69: LT_INIT is expanded from...
m4/libtool.m4:107: AC_PROG_LIBTOOL is expanded from...
configure.in:511: the top level
configure.in:511: warning: LTSUGAR_VERSION is m4_require'd but not m4_defun'd
configure.in:511: warning: LTVERSION_VERSION is m4_require'd but not m4_defun'd
configure.in:511: warning: LTOBSOLETE_VERSION is m4_require'd but not m4_defun'd
configure.in:511: warning: LTOPTIONS_VERSION is m4_require'd but not m4_defun'd
m4/libtool.m4:69: LT_INIT is expanded from...
m4/libtool.m4:107: AC_PROG_LIBTOOL is expanded from...
configure.in:511: the top level
configure.in:511: warning: LTSUGAR_VERSION is m4_require'd but not m4_defun'd
configure.in:511: warning: LTVERSION_VERSION is m4_require'd but not m4_defun'd
configure.in:511: warning: LTOBSOLETE_VERSION is m4_require'd but not m4_defun'd
configure.in:511: warning: LTOPTIONS_VERSION is m4_require'd but not m4_defun'd
m4/libtool.m4:69: LT_INIT is expanded from...
m4/libtool.m4:107: AC_PROG_LIBTOOL is expanded from...
configure.in:511: the top level
configure.in:511: warning: LTSUGAR_VERSION is m4_require'd but not m4_defun'd
configure.in:511: warning: LTVERSION_VERSION is m4_require'd but not m4_defun'd
configure.in:511: warning: LTOBSOLETE_VERSION is m4_require'd but not m4_defun'd
configure.in:511: warning: LTOPTIONS_VERSION is m4_require'd but not m4_defun'd
m4/libtool.m4:69: LT_INIT is expanded from...
m4/libtool.m4:107: AC_PROG_LIBTOOL is expanded from...
configure.in:511: the top level
configure.in:511: warning: LTSUGAR_VERSION is m4_require'd but not m4_defun'd
configure.in:511: warning: LTVERSION_VERSION is m4_require'd but not m4_defun'd
configure.in:511: warning: LTOBSOLETE_VERSION is m4_require'd but not m4_defun'd
configure.in:511: warning: LTOPTIONS_VERSION is m4_require'd but not m4_defun'd
m4/libtool.m4:69: LT_INIT is expanded from...
m4/libtool.m4:107: AC_PROG_LIBTOOL is expanded from...
configure.in:511: the top level
configure.in:511: warning: LTSUGAR_VERSION is m4_require'd but not m4_defun'd
configure.in:511: warning: LTVERSION_VERSION is m4_require'd but not m4_defun'd
configure.in:511: warning: LTOBSOLETE_VERSION is m4_require'd but not m4_defun'd
一些宏找不到，参照网上解决方法
cat /usr/share/aclocal/ltoptions.m4 /usr/share/aclocal/ltversion.m4 /usr/share/aclocal/ltsugar.m4 /usr/share/aclocal/lt~obsolete.m4 >>aclocal.m4
但是我的系统里/usr/share/aclocal下没有上面的4个文件。
郁闷中，希望有类似情况或者明白真相的人们能给予帮助