Since the implementation of pthreads is not likely in the time frame of the LSB specification, then a compromise might be to standardize on the pthreads API's except for the POSIX signalling behaviour. The specification could say that POSIX signalling is preferred; however, "clone" would be temporarily allowed until the next revision of the LSB specification. George Kraft IV gk4@us.ibm.com 512-838-2688; t/l 678-2688 Linux Technology Center IBM, Austin Texas