dl(): Invalid library (maybe not a PHP library)

I have followed the instructions in the PHP documentation on how to build a custom dynamic extension. After running ext_skel, I did NOT add any custom methods. I built the extension using the followind commands: Compiling cc -fpic -DCOMPILE_DL=1 -I/usr/local/include -I. -I.. -I../Zend -c -o <your_object_file> <your_c_file> Linking cc -shared -L/usr/local/lib -rdynamic -o <your_module_file> <your_object_file(s)> Now, when I try to load my extension using dl(), I get the following error: dl(): Invalid library (maybe not a PHP library) 'my_ext.so' When, I do "nm" on the library file, I can see the method "zif_confirm_my_ext_compiled" along with other methods. So, it looks like a valid library. Do I need to add something to the php.ini file? Well, I tried adding extension_dir=/usr/local/apache/htdocs extension=my_ext.so That did NOT help either. Could someone please advise on why PHP 4.3.3 is complaining that it is not a valid PHP extension. Did I miss anything? Thank you in advance. -- Anas Mughal Email: am786@optonline.com