In order to support vcpkg (https://github.com/DiligentGraphics/DiligentEngine/issues/40), it is required that third-party dependencies can be provided externally by the client build system.
This can be achieved by checking if every third-party CMake target already exists before including its subfolder.
In order to support vcpkg (https://github.com/DiligentGraphics/DiligentEngine/issues/40), it is required that third-party dependencies can be provided externally by the client build system. This can be achieved by checking if every third-party CMake target already exists before including its subfolder.