> Currently we use weak undefined symbol, foo, to do > > if (&foo != 0) > foo is defined. > else > foo isn't defined. > > We want is to define foo as a secondary symbol so that > we can always use foo without checking. If there is a primary > one in a .o file and .so file, we will get the primary one, > otherwise, we will use the secondary one.
Why not use a weak definition in the file where you make the call?
