Unresolved symbol _zend_ini_scanner_get_lineno

Hello.

 

I've got my extension working fine in static mode and would now like to make
it loadable. 
I reran configure.js, adding =shared to my enable; no errors there.
nmake clean - ok
nmake - 1 unresolved external symbol: _zend_ini_scanner_get_lineno
Yes. I call zend_ini_scanner_get_lineno() . I'm using zend_ini_parse_file()
and use the get_lineno() function for reporting errors.

I am guessing that either my configure.w32 is incorrect or my build
environment is still not quite right.
Here is config.w32:
ARG_ENABLE( "dplhlib", "Enable the DPLH Enterprises extension", "no" );
if( PHP_DPLHLIB != "no" )
{
    EXTENSION( "dplhlib", "php_dplhlib.c" );
            AC_DEFINE('HAVE_DPLHLIB', 1, 'Have DPLH Enterprises extension')
}

Thanks in advance

 

Dave