ineed help from all experts
here's the case:
for example i have application A version 1 installled in my Linux, and there are application B and C refer one of their library to A's library.
one day, i need to upgrade A to version 2. and i want application B and C will refer their library not to A ver 1 anymore, but A ver 2.
my question is how to change library path for B to A ver 2?
i hope not confising and thank you in advance for your help