This is a useful feature to enable for applications that want to use KJS without blocking the main thread. A quick look at collector.cpp suggests that certain bits need to be implemented either using pthread or GThread.
(In reply to comment #0) > This is a useful feature to enable for applications that want to use KJS > without blocking the main thread. > > A quick look at collector.cpp suggests that certain bits need to be implemented > either using pthread or GThread. There's a WIP patch in bug #26838 for pthreads.
This flag is gone now and I believe that GTK+ is using multiple threads at the moment.