> On 28 Mar 2016, at 23:59, Philippe Hausler <phausler at apple.com> wrote: > > the swift-corelibs-foundation compiled for Darwin does not define that yet either. Are you seeing issues with it when defined? When I add OTHER_SWIFT_FLAGS = -DDEPLOYMENT_ENABLE_LIBDISPATCH it works. So I guess that's what I should do? /Daniel