Default how to link system/lib file from other source.

hey i have CM11 but its system Partition is almost full.i want to add more file to system/lib folder from other location just like linking of apps .
i have Google chrome's .so file and google earth .so file wich are almost of 60 MBs and there is only 45MB space is left.
someone tell me how to link system/lib file from other source (sd card).
thanks