cannot compile function containing "get_current_dir_name"

[Rainer Stamen]

Hi,

I try to compile a program which contains a call to 
"get_current_dir_name".  The compiler complains that the fucntion is 
undeclared. From checking the archives I learned that the problem 
existed already in the past. However the proposed fix (add #define 
_GNU_SOURCE) seems not to work for me.

Do I have to install a special package apart from the base installation?
Other suggestions?

Cheers,
                 Rainer

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