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If i have libs A, B and C in C++ using GCC compiler. Lib A and B both depend on C but on different versions of it. Can i then use A and B together in another program? or will the different versions required of C by A and B conflict? And how do i resolve this and can i?
I’m assuming that you’re linking dynamically. If both A and B completely encapsulate their respective versions of C then it might be possible to do this. You might have to make sure that the different versions of C are named differently (i.e. libMyC.1.so and libMyC.2.so) to avoid confusion when they are loaded at runtime.
You could also investigate statically building A and B to avoid the possiblility of runtime load confusion.
Simplest way to find out is simply to try it. It shouldn’t take to long to determine if it’ll work or not.
Lastly, of course, by far the easiest solution, and best from a maintenance perspective is to bring A, or B, up to the level of the other so that they both use the same version of C. This is better in so many ways and I strongly urge you to do that rather than to try working around a real problem.