title: How can I avoid "duplicate symbol" errors in xcode with shared static libraries?
body: <p>I have static libraries A, B and C organized into Xcode projects.  A and B depend on C.  When I build an iPhone project that depends on A and B, I get a linker error that a duplicate symbol (from C) was detected in A and B.  How can I organize these three static libraries so I can include them in other Xcode projects without experiencing this error?</p>