None of the .vcproj files specify a name for the
generated .pdb files. This means that visual studio
will use the default name (something like vc71.pdb).
This makes it impossible to store the pdb files from
the different libraries in a single directory.
Ideally, the pdb files should be called
<library_name>.pdb and be stored in the same directory
as the .lib files (either lib or lib-dbg).