When I use ereg_replace in a script, the browser returns with an error message while accessing the page.

I used the Apache-1.3.3.i386.rpm that comes with Redhat 5.2, and I compiled PHP 3.0.5 as follows:

$ tar -zxf php-3.0.5.tar.gz
$ cd php-3.0.5
$ ./configure \
        --with-apxs \
        --prefix=/usr \
        --with-gd \
        --with-zlib \
        --with-config-file-path=/etc/httpd/conf \
        --disable-debug \
        --enable-magic-quotes \
        --enable-debugger \
        --enable-bcmath \
        --enable-track-vars \
        --with-dbase \
        --with-mysql=/usr/local/mysql
$ make -C regex
$ make
$ strip libphp3.so
$ install -m755 libphp3.so /usr/lib/apache/mod_php3.so
$ install -m644 php3.ini-dist /etc/httpd/conf/php3.ini
$ install -m644 extra/icons/*.gif /home/httpd/icons

any call to ereg_replace will reproduce this on my system, eg:

<?
  echo ereg_replace("a", "b", "bababa");
?>

i was able to resolve the problem by adding the switch
--with-system-regex
to the configure script (and not running make -C regex).