Now I quote what you will read in this page (starts from preable...):

http://www.gnu.org/licenses/lgpl.html

When a program is linked with a library, whether statically or using a shared library, the combination of the two is legally speaking a combined work, a derivative of the original library. The ordinary General Public License therefore permits such linking only if the entire combination fits its criteria of freedom. The Lesser General Public License permits more lax criteria for linking other code with the library.
These sentences seam clear to me.

I suggest to read gnu.org entirely... or the licence section...