Warn if no compiler support for blocks
Warn if no compiler support for blocks

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