Well, that trick did not work so well.
I was forced to finally copy the system library to a common development
directory
and renaming CoreFoundation -> libCoreFoundation.a and copying the
function call
out of CFSet.pas into my own pascal unit file.
Only then did I get the linker to work corre
I thought of a trick to get around this.
Using XCode, I can build a static library to get me access to the
functions that I need.
But that is not really the point, I would like my freepascal environment
to be correct
and to be able to use the functions contained in interface files like
cfset