viet@xxxxxxxxxxxxxxx writes: > > I have an archive file, when I do a nm on it, I can see. > > 00000000 V _ZTV13VLH_Container vtable for VLH_Container > the compile option to create the objects for the archive (.a) is > > gcc -c -Wno-ctor-dtor-privacy -fno-rtti -MMD -pthread -Wno-deprecated > -Wall -O2 > > I have an .so that link with the above archive, when I do an nm on it, I > can see: > U _ZTI13VLH_Container typeinfo for VLH_Container > the compile option to creates objects for the .so is > > g++ -pipe -Wall -fPIC -rdynamic -g > > I'm guessing that the problem for the undefined symbol is a compile > option. What is the difference between _ZTV and _ZTI? They're totally different things. Andrew.