I am getting this error when tring to ./buildconf buildconf: checking installation... buildconf: autoconf version 2.50 (ok) buildconf: automake version 1.4-p5 (ok) buildconf: libtool version 1.4 (ok) WARNING: automake and libtool are installed in different directories. This may cause aclocal to fail. continuing anyway aclocal: configure.in: 894: macro `AM_PROG_LIBTOOL' not found in library rebuilding Makefile templates automake: configure.in: installing `Zend/ylwrap' rebuilding Makefile templates rebuilding configure configure.in:124: warning: AC_PROG_LEX invoked multiple times configure.in:54: error: possibly undefined macro: AM_INIT_AUTOMAKE configure.in:68: error: possibly undefined macro: AM_CONFIG_HEADER configure.in:69: error: possibly undefined macro: AM_MAINTAINER_MODE configure.in:116: error: possibly undefined macro: AM_PROG_CC_STDC configure.in:441: error: possibly undefined macro: PHP_AC_BROKEN_SPRINTF configure.in:894: error: possibly undefined macro: AM_PROG_LIBTOOL configure:9967: error: possibly undefined macro: AC_ADD_INCLUDE rebuilding acconfig.h rebuilding main/php_config.h.in autoheader: error: AC_CONFIG_HEADERS not found in configure.in I have the latest CVS of php4 Zend and TSRM and the lastest autoconf, automake. libtool, bison and flex.