dl(): Invalid library (maybe not a PHP library) 'ssh2.sl' in

Problems with the same library in a different SO.
I'm installing the ssh2 in HPUX11.11 and PHP 4.3.1.

I followed the instructions:
- compiled the lib_ssh
- downloaded the tarball from PECL
- did phpize && ./configure --with-ssh2 && make

I run into some problems during this process and made a post in php.net to help others.

Now when loading the library I receive the error:
Warning: dl(): Invalid library (maybe not a PHP library) 'ssh2.sl'

Any help would be appreciated.

Thanx
Astri