Description:
------------
./configure --disable-debug --enable-sigchild --disable-short-tags --prefix=/usr --mandir=/usr/share/man                \
--datadir=/usr/share --sysconfdir=/etc --localstatedir=/var/lib --enable-experimental-zts --with-apxs2=/usr/sbin/apxs   \
--cache-file=config.cache --enable-bcmath  --with-bz2 --enable-calendar --with-curl --without-curlwrappers              \
--enable-dbase --enable-dbx --with-fam --enable-ftp --with-gettext --with-gmp --with-iconv --with-gd --enable-exif      \
--without-imap --with-kerberos --with-mime-magic --with-mysql=/usr/include/mysql                                        \
--with-mysqli=shared,/usr/bin/mysql_config --enable-cgi --enable-force-cgi-redirect --enable-ipv6 --enable-libxml       \
--with-openssl --with-pdflib --enable-pcntl --with-regex=php --enable-sysvsem --enable-sysvshm --enable-sysvmsg         \
--enable-shmop --enable-simplexml --without-swf --without-snmp --enable-sockets --without-sqlite --enable-cli           \
--enable-wddx  --with-zip  --with-zlib --with-pear --disable-dba --enable-mbstring --with-mysql-sock=/mysqldatabases    \
--disable-maintainer-zts --disable-memory-limit --enable-zend-multibyte --with-config-file-path=/etc --without-recode   \
--disable-embedded-mysqli

I have installed MySQL 4.1.9 before PHP 5.0.3.

Reproduce code:
---------------
No code involved

Expected result:
----------------
myqli_* functions

Actual result:
--------------
The extension compiles I get some warnings... I end up with a mysqli.so

...but...

PHP Warning: PHP Startup: Invalid library (maybe not a PHP library) 'mysqli.so'  in Unknown on line 0