Pgsql support misses some functions ?

[Ketema]

I recently built php from source and found that certain Pgsql
functions were "left out"? has any one experienced this before?
Functions that are "not present" are pg_prepare and pg_escape_string.
Postgresql version was 8.3.10 and the php version is 5.2.13.

the configure command is:
--configure-options [--prefix=/usr --mandir=/usr/share/man --
infodir=/usr/share/info --disable-dependency-tracking --sysconfdir=/
private/etc --with-apxs2=/usr/sbin/apxs --enable-cli --with-config-
file-path=/etc --with-libxml-dir=/usr --with-openssl=/usr --with-
kerberos=/usr --with-zlib=/usr --enable-bcmath --with-bz2=/usr --
enable-calendar --with-curl=/usr --enable-exif --enable-ftp --with-png
--with-jpeg --enable-gd-native-ttf --enable-mbstring --enable-mbregex
--with-iodbc=/usr --enable-shmop --enable-soap --enable-sockets --
enable-sysvmsg --enable-sysvsem --enable-sysvshm --with-xmlrpc --with-
xsl=/usr --with-pcre-regex --with-pgsql --with-mcrypt --with-pdo-pgsql
--with-iconv --with-iconv-dir=/usr]