Build: Fix leaking of non-public symbols
Build: Fix leaking of non-public symbols

nickhutchinson/libdispatch,nickhutchinson/libdispatch,nickhutchinson/libdispatch,SproutOrc/libdispatch,SproutOrc/libdispatch,evaautomation/libdispatch,evaautomation/libdispatch,PSPDFKit-labs/libdispatch,evaautomation/libdispatch,evaautomation/libdispatch,SproutOrc/libdispatch,PSPDFKit-labs/libdispatch,SproutOrc/libdispatch,PSPDFKit-labs/libdispatch,PSPDFKit-labs/libdispatch,nickhutchinson/libdispatch