On Oct 19, 2006, at 12:40 AM, Matthias Scheler wrote:

> BTW: which version of GCC is actually installed on your system?
>      The initial version 4.0 shipped with Mac OS X Tiger had
>      a lot of problems. GCC 4.0.1 is part of Xcode tools 2.3
>      and 2.4 which can be downloaded on the Apple website.

Sorry that i did not mehtion that.

I have XCode Tools 2.4 with gcc 4.0.1. And i was able to install  
gprolog without any problem after changing to gcc 3.3.

Philipp