--with-mysql[=DIR] Include MySQL support. DIR is the MySQL base
directory. If unspecified, the bundled MySQL
library will be used.
--with-oci8[=DIR] Include Oracle-oci8 support. Default DIR is
ORACLE_HOME.
--with-ibm-db2[=DIR] Include IBM DB2 support. DIR is the DB2 base
install directory, defaults to
/home/db2inst1/sqllib
--with-pgsql[=DIR] Include PostgreSQL support. DIR is the PostgreSQL
base install directory, defaults to
/usr/local/pgsql.
You can't build PHP with support for a database
whose client libraries you don't have on your
system. For example, if you don't have the Oracle
client libraries, you can't build PHP with support
for Oracle databases.