[solved] Magic __destruct - Win vs. Mac

[eluser]CroNiX[/eluser]

because apparently it cannot resolve relative paths by the time when the destructor is called for referenced objects

Looks like those CI functions are using a relative path (Warning: include(icf/errors/error_php.php) [function.include]: failed to open stream: No such file or directory). You'd probably have to extend the core and stick an APPPATH in front of those paths so it will be a full path instead of relative.