Pb getwd on afs linux

[Magnus Ahltorp]

> On the other hand, if the Arla's getcwd.so is not used, most of the
> basic command fail with a message saying that :
> "could not get current directory: getwd: cannot access parent directories"
> 
> If someone has a suggestion, I would be happy !

The solution is to make getcwd.so work with libc5 as well. It did work
before we made it fall back to normal behaviour in the absence of the
getcwd syscall.

/Magnus
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