Multiple shared libs, alternative implementations of common interface, *minimal* cmake/c++ example?

[ben.boeckel (Ben Boeckel (Kitware))]

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Interfaces, implementations, and unresolved symbols

Hi, how should we model the following situation in CMake? There is an interface specification (e.g. set of C language header files): H There are two (static) libraries L1 and L2, each of them implementing this interface H There is a (static) library U which uses the H interface but does not care whether L1 or L2 is used to implement that interface There is another (static) library M which uses U Finally, there are two executables E1 and E2 which both use M and additionally L1 or L2, respec…