My spies tell me that you are already a C++ developer, with processes in place for building applications, using your favorite build tool. So I won't tell you how to do that, but let me point you to a couple of things.
include. You'll find one for quince and one
for each backend.
bin directories.
(These are at the same level as the src and include
directories.) Under bin you will see a tree of subdirectories,
branching out according to the combination of build properties that
were used to build the binary. It's pretty self-explanatory, and when
you reach the bottom you will find the library you were looking for.
Now all you need is some application code. (That's a segue.)