Dear GiNaC developers, i have noticed that the default build of GiNaC from the release tars does not seem to link against the CLN-library. My configuration: Mac OSX Leopard GiNaC 1.5.8 release (from scratch: untar, configure, make, make install). GNU from mac ports. This results in strange linker behaviour, when working with the "numeric" class: Undefined symbols: "cln::cl_free_heap_object(cln::cl_heap*)", referenced from: cln::cl_gc_dec_pointer_refcount(cln::cl_heap*) in numeric.cpp.o ld: symbol(s) not found collect2: ld returned 1 exit status I suppose, this linker error is heavy to understand for beginners, so i suggest to fix or document this issue. With best regards, Aless -- Aless Lasaruk Scientific Assistant, FORWISS Room 204, ITZ, Innstrasse 43 Universität Passau D-94030 Passau (Germany) Mail: lasaruk@uni-passau.de Tel.: +49(0)851/509-3173 Fax : +49(0)851/509-3142