David Hagood <david.hagood@xxxxxxxxx> writes: > On Sun, 2011-05-29 at 01:32 +0200, J wrote: >> // compile with: g++ -ldl host.cpp -o host > <snip> >> // compile with: g++ -lboost_signals child.cpp -shared -fPIC -o libchild.so > > Of course, this isn't really a GCC question, but a libc/binutils > question, so you may do better over on that list. To be precise, this is a libc question. It is not a binutils question. This is a question about the dynamic linker and libdl, both of which are part of libc on a typical Unix or GNU/Linux system. Ian