Running buildconf results in automake errors

In the past, I have successfully built the PHP 4 release from the CVS tree, but lately (in the last week or so) I haven't been able to do it. Running buildconf after doing a cvs update results in the following messages: automake: ./libzend/Makefile.am: lex source seen but 'LEX' not defined in 'configure.in' automake: ./libzend/Makefile.am: lex source seen but 'AC_DECL_YYTEXT' not in 'configure.in' I have the following versions of the tools: autoconf 2.13 automake 1.4a libtool 1.3.3 Both automake and libtool are installed in /usr/bin. I saw this discussed recently in this list, but missed the resolution. I would greatly appreciate it if someone can provide me with either a location for an archive of this list, or the solution to this problem. Thanks in advance. - Tim Taylor -- ====================================================================== Timothy L. Taylor Internet: ttaylor@mitre.org Lead Software Systems Engineer Voice: (781) 271-8770 The Mitre Corporation Fax: (781) 271-7231 202 Burlington Rd. Mail Stop: B295 Bedford, Massachusetts 01730-1420 ======================================================================