buildconf warning

>From today's cvs using default Zend directory buildconf: checking installation... buildconf: autoconf version 2.53 (ok) buildconf: Your version of autoconf likely contains buggy cache code. Running cvsclean for you. To avoid this, install autoconf-2.13 and automake-1.5. buildconf: automake version 1.6.3 (ok) buildconf: libtool version 1.4.3 (ok) rebuilding configure rebuilding acconfig.h rebuilding main/php_config.h.in WARNING: Using auxiliary files such as acconfig.h', config.h.bot' WARNING: and config.h.top', to define templates for config.h.in' WARNING: is deprecated and discouraged. WARNING: Using the third argument of `AC_DEFINE' and WARNING: `AC_DEFINE_UNQUOTED' allows to define a template without WARNING: `acconfig.h': WARNING: AC_DEFINE([NEED_MAIN], 1, WARNING: [Define if a function `main' is needed.]) WARNING: More sophisticated templates can also be produced, see the WARNING: documentation. autoheader: `main/php_config.h.in' is created bye -- michel 'ziobudda' morelli <michel@ziobudda.net>