About the method of making mbstring effective with Plesk8

[Yukio]

When PHP is compiled, mbstring is not effective in Plesk8.

'./configure' '--prefix=/usr' '--datadir=/usr/share/php'
'--mandir=/usr/share/man' '--bindir=/usr/bin' '--libdir=/usr/share'
'--includedir=/usr/include' '--sysconfdir=/etc' '--with-_lib=lib'
'--with-config-file-path=/etc' '--with-exec-dir=/usr/lib/php/bin'
'--disable-debug' '--enable-inline-optimization' '--enable-memory-limit'
'--enable-magic-quotes' '--enable-safe-mode' '--enable-sigchild'
'--disable-ctype' '--disable-session' '--without-mysql' '--disable-cli'
'--without-pear' '--with-openssl' '--with-apxs2=/usr/sbin/apxs2-prefork'
'i586-suse-linux'

In Plesk7.5, it was effective as follows.

'./configure' '--build=i386-redhat-linux' '--host=i386-redhat-linux'
'--target=i386-redhat-linux-gnu' '--program-prefix=' '--prefix=/usr'
'--exec-prefix=/usr' '--bindir=/usr/bin' '--sbindir=/usr/sbin'
'--sysconfdir=/etc' '--datadir=/usr/share' '--includedir=/usr/include'
'--libdir=/usr/lib' '--libexecdir=/usr/libexec' '--localstatedir=/var'
'--sharedstatedir=/usr/com' '--mandir=/usr/share/man'
'--infodir=/usr/share/info' '--cache-file=../config.cache'
'--with-config-file-path=/etc' '--with-config-file-scan-dir=/etc/php.d'
'--enable-force-cgi-redirect' '--disable-debug' '--enable-pic'
'--disable-rpath' '--enable-inline-optimization' '--with-bz2'
'--with-db4=/usr' '--with-curl' '--with-exec-dir=/usr/bin'
'--with-freetype-dir=/usr' '--with-png-dir=/usr' '--with-gd=shared'
'--enable-gd-native-ttf' '--without-gdbm' '--with-gettext'
'--with-ncurses=shared' '--with-gmp' '--with-iconv' '--with-jpeg-dir=/usr'
'--with-openssl' '--with-png' '--with-pspell' '--with-xml'
'--with-expat-dir=/usr' '--with-dom=shared,/usr' '--with-dom-xslt=/usr'
'--with-dom-exslt=/usr' '--with-xmlrpc=shared' '--with-pcre-regex=/usr'
'--with-zlib' '--with-layout=GNU' '--enable-bcmath' '--enable-exif'
'--enable-ftp' '--enable-magic-quotes' '--enable-sockets' '--enable-sysvsem'
'--enable-sysvshm' '--enable-track-vars' '--enable-trans-sid' '--enable-yp'
'--enable-wddx' '--with-pear=/usr/share/pear' '--with-imap=shared'
'--with-imap-ssl' '--with-kerberos' '--with-ldap=shared'
'--with-mysql=shared,/usr' '--with-pgsql=shared' '--with-snmp=shared,/usr'
'--with-snmp=shared' '--enable-ucd-snmp-hack' '--with-unixODBC=shared,/usr'
'--enable-memory-limit' '--enable-shmop' '--enable-calendar' '--enable-dbx'
'--enable-dio' '--enable-mbstring=shared' '--enable-mbstr-enc-trans'
'--enable-mbregex' '--with-mime-magic=/usr/share/file/magic.mime'
'--with-pic' '--with-apxs2=/usr/sbin/apxs'

What should you do so that I may make mbstring effective?