I just upgraded using the same configure line from 5.14
'./configure' '--with-apxs2=/usr/sbin/apxs' '--enable-track-vars' '--enable-sockets' '--with-config-file-path=/etc' '--enable-ftp' '--with-zlib' '--with-openssl=/usr' '--enable-exif' '--with-pic' '--with-layout=GNU' '--enable-calendar' '--enable-sysvsem' '--enable-sysvshm' '--enable-sysvmsg' '--enable-trans-sid' '--enable-bcmath' '--with-bz2' '--enable-ctype' '--with-iconv' '--with-gettext' '--enable-mbstring' '--enable-shmop' '--enable-wddx' '--with-xmlrpc' '--with-zlib' '--without-pgsql' '--enable-dbx' '--without-mm' '--enable-gd-native-ttf' '--with-imap-ssl' '--enable-soap' '--with-jpeg-dir=/usr/lib' '--with-ldap=/usr' '--with-gd=/usr' '--with-freetype-dir=/usr/include' '--enable-magic-quotes' '--with-mysql=shared' '--with-mysqli=shared' '--with-pdo-mysql=shared' '--with-pear=/usr/local/apache/pear' This worked in 5.14 with no problems. In 5.21, info.php is missing both mysql and mysqli sections. I guess my configure line no longer works yet configure runs with no errors and it compiles with no errors. mysql version running mysql-4.1.20-1.FC4.1 mysql-devel-4.1.20-1.FC4.1 mysql-server-4.1.20-1.FC4.1 mysqlclient10-3.23.58-6 Any ideas?