building php, using mysql for apache2

hi... trying to build php4 with mysql4.1-12, for use in apache2. i have the following "./compile" that works for php5. however, when i try to use it for php4, i get a msg, stating that it can't find the MySQL Headers... can anybody provide any pointers as far as what the Headers are for mysql, and where they'd be located? if i knew the files, i could do a search to find where they're located. ---------------------------------- ./configure --with-apxs2=/usr/sbin/apxs --with-mysql=/usr/bin/mysql_config ---------------------------------- thanks -bruce bedouglas@earthlink.net