Problem with buildconf out of CVS

Hi, I'm getting the following errors running ./buildconf to generate the configure script. Any ideas? Thanks. --Ken P.S. I'm using autoconf 2.13 ==================== [root:/usr/local/apache/cvs/php4]# ./buildconf aclocal: configure.in: 79: macro `AM_PROG_LIBTOOL' not found in library created or modified aclocal.m4 autoconf: Undefined macros: ***BUG in Autoconf--please report*** AC_ADD_INCLUDE ***BUG in Autoconf--please report*** AC_ADD_LIBRARY_WITH_PATH ***BUG in Autoconf--please report*** AC_ADD_INCLUDE . . ***BUG in Autoconf--please report*** AC_ADD_LIBRARY_WITH_PATH ***BUG in Autoconf--please report*** AC_ADD_INCLUDE configure.in:171: AC_CHECK_CC_OPTION(rdynamic) configure.in:249:AC_MISSING_FCLOSE_DECL configure.in:355: AC_EXPAND_PATH($withval, APXS) configure.in:397: AC_EXPAND_PATH($withval, withval) configure.in:839: AC_ADD_LIBRARY(dmalloc) keeping configure keeping libzend/aclocal.m4 keeping libzend/configure keeping TSRM/aclocal.m4 keeping TSRM/configure