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GiNaC requires the CLN library by Bruno Haible installed on your system.
-It is available from <ftp://ftpthep.physik.uni-mainz.de/pub/gnu/>.
+It is available from <http://www.ginac.de/CLN/>.
You will also need a decent ANSI-compliant C++-compiler. We recommend the
C++ compiler from the GNU compiler collection, GCC >= 3.4. If you have a